|
HI guys
Before doing this xrf .I knew little about timing belts and how they actually function.
I thought made of just plain rubber or something like that until my car timing belt almost snapped on the freeway weeks ago.
Replaced a new one together with the full timing belt kit.
Kept the old stuff for xrf.
Xrf was pretty short because? the peaks were appearing and therefore I decided no need for a longer scan.
Xrf with Am 241 show iron and zinc peaks.
On further reading noted that these belts are made of rubber reinforced with fibreglass,steel or neoprene.
Most likely the iron is in the cords and zinc as neoprene in the rubber
Pics are for a section of the timing belt exposing the cords and mca .
Thanks
Taray
|
Nice catch on the metals in the rubber Taray. That's why we test everything!
And your direct exciter 59.5 leakage is almost not even detectable, just a little Compton? backscatter from it at the lower energy.
Geo
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Saturday, December 5, 2020 8:30:09 AM Subject: [XRF] Xrf timing belt
HI guys
Before doing this xrf .I knew little about timing belts and how they actually function.
I thought made of just plain rubber or something like that until my car timing belt almost snapped on the freeway weeks ago.
Replaced a new one together with the full timing belt kit.
Kept the old stuff for xrf.
Xrf was pretty short because? the peaks were appearing and therefore I decided no need for a longer scan.
Xrf with Am 241 show iron and zinc peaks.
On further reading noted that these belts are made of rubber reinforced with fibreglass,steel or neoprene.
Most likely the iron is in the cords and zinc as neoprene in the rubber
Pics are for a section of the timing belt exposing the cords and mca .
Thanks
Taray
|
You ID’d only the very strongest
peak and at only 7 total counts some would argue that is insufficient to make a
claim considering close ?overlap and confirming with secondary peaks . What
about the more subtle peaks that are going to take a much longer time to develop?
Use longer count times and find out what you’re missing or not.
Dud
?
?
?
HI guys
Before doing this xrf .I knew little about timing belts and how they actually
function.
I thought made of just plain rubber or something like that until my car timing
belt almost snapped on the freeway weeks ago.
Replaced a new one together with the full timing belt kit.
Kept the old stuff for xrf.
Xrf was pretty short because? the peaks were appearing and therefore I
decided no need for a longer scan.
Xrf with Am 241 show iron and zinc peaks.
On further reading noted that these belts are made of rubber reinforced with
fibreglass,steel or neoprene.
Most likely the iron is in the cords and zinc as neoprene in the rubber
Pics are for a section of the timing belt exposing the cords and mca .
Thanks
Taray
|
Dude Yes I was expecting that ha ha Could have done a longer scan but I was running out of time yesterday. I acquired a cartoon of my car disposable parts goodies??late yesterday. They consist of used brake pads ,fan belt??plus tensioner and the timing belt assembly. The timing belt components are belt and multiple pulleys.Changing timing belt means replacing the the whole assembly . After noting the xrf results,I was doing some investigative xrf of the other components??to explain my findings. The metal??pulleys???also had iron and zinc. Also checked out sometimes zinc is added to the oil used to lubricate certain timing belt systems. Initially thought there was some contamination from nearby structures. But this was ruled out Car mechanics is very confusing too me especially when it comes to tensioners and lubricant oils on the timing belt. Preliminary impression was the zinc and iron could have rubbed??off on the??old timing belt and got impregnated as silly as it may sound. After I took a closer look at the timing belt ,the pieces of the puzzle started to fit. I have some other??parts to xrf next time like the used???belt pulleys,brake pads??and tensioners which are very metallic indeed. Here is longer scan of the timing belt Taray
On Sunday, December 6, 2020, 6:26 AM, Dude <dfemer@...> wrote:
You ID’d only the very strongest
peak and at only 7 total counts some would argue that is insufficient to make a
claim considering close ?overlap and confirming with secondary peaks . What
about the more subtle peaks that are going to take a much longer time to develop?
Use longer count times and find out what you’re missing or not.
Dud
?
?
?
HI guys
Before doing this xrf .I knew little about timing belts and how they actually
function.
I thought made of just plain rubber or something like that until my car timing
belt almost snapped on the freeway weeks ago.
Replaced a new one together with the full timing belt kit.
Kept the old stuff for xrf.
Xrf was pretty short because? the peaks were appearing and therefore I
decided no need for a longer scan.
Xrf with Am 241 show iron and zinc peaks.
On further reading noted that these belts are made of rubber reinforced with
fibreglass,steel or neoprene.
Most likely the iron is in the cords and zinc as neoprene in the rubber
Pics are for a section of the timing belt exposing the cords and mca .
Thanks
Taray
|
XRF has been used to look
at metal in engine oil, give that a try.
Dud
?
?
Dude
Yes I was expecting that ha ha
Could have done a longer scan but I was running out of time
yesterday.
I acquired a cartoon of
my car disposable parts goodies??late yesterday.
They consist of used
brake pads ,fan belt??plus tensioner and the
timing belt assembly.
The timing belt
components are belt and multiple pulleys.Changing timing belt means replacing
the the whole assembly .
After noting the xrf
results,I was doing some investigative xrf of the other components??to explain my findings.
The metal??pulleys???also had iron and zinc.
Also checked out
sometimes zinc is added to the oil used to lubricate certain timing belt
systems.
Initially thought there
was some contamination from nearby structures.
But this was ruled out
Car mechanics is very
confusing too me especially when it comes to tensioners and lubricant oils on
the timing belt.
Preliminary impression
was the zinc and iron could have rubbed??off on the??old timing belt and got
impregnated as silly as it may sound.
After I took a closer
look at the timing belt ,the pieces of the puzzle started to fit.
I have some other??parts to xrf next time
like the used???belt pulleys,brake
pads??and tensioners which are very metallic
indeed.
Here is longer scan of
the timing belt
Taray
?
toggle quoted message
Show quoted text
On Sunday,
December 6, 2020, 6:26 AM, Dude <dfemer@...> wrote:
You ID’d only the very strongest peak and
at only 7 total counts some would argue that is insufficient to make a claim
considering close ?overlap and confirming with secondary peaks . What
about the more subtle peaks that are going to take a much longer time to
develop? Use longer count times and find out what you’re missing or not.
Dud
?
?
?
HI guys
Before doing this xrf .I knew little about timing belts and how they actually
function.
I thought made of just plain rubber or something like that until my car timing
belt almost snapped on the freeway weeks ago.
Replaced a new one together with the full timing belt kit.
Kept the old stuff for xrf.
Xrf was pretty short because? the peaks were appearing and therefore I
decided no need for a longer scan.
Xrf with Am 241 show iron and zinc peaks.
On further reading noted that these belts are made of rubber reinforced with
fibreglass,steel or neoprene.
Most likely the iron is in the cords and zinc as neoprene in the rubber
Pics are for a section of the timing belt exposing the cords and mca .
Thanks
Taray
|
Dude Interesting? Xrf of lubricating oil after use Gives info about engine condition before and after? Only have leftover new oil at the moment? Can still check for additives like zinc though ?Will??keep some used one next time Taray
On Sunday, December 6, 2020, 1:20 PM, Dude <dfemer@...> wrote:
XRF has been used to look
at metal in engine oil, give that a try.
Dud
?
?
Dude
Yes I was expecting that ha ha
Could have done a longer scan but I was running out of time
yesterday.
I acquired a cartoon of
my car disposable parts goodies??late yesterday.
They consist of used
brake pads ,fan belt??plus tensioner and the
timing belt assembly.
The timing belt
components are belt and multiple pulleys.Changing timing belt means replacing
the the whole assembly .
After noting the xrf
results,I was doing some investigative xrf of the other components??to explain my findings.
The metal??pulleys???also had iron and zinc.
Also checked out
sometimes zinc is added to the oil used to lubricate certain timing belt
systems.
Initially thought there
was some contamination from nearby structures.
But this was ruled out
Car mechanics is very
confusing too me especially when it comes to tensioners and lubricant oils on
the timing belt.
Preliminary impression
was the zinc and iron could have rubbed??off on the??old timing belt and got
impregnated as silly as it may sound.
After I took a closer
look at the timing belt ,the pieces of the puzzle started to fit.
I have some other??parts to xrf next time
like the used???belt pulleys,brake
pads??and tensioners which are very metallic
indeed.
Here is longer scan of
the timing belt
Taray
?
On Sunday,
December 6, 2020, 6:26 AM, Dude <dfemer@...> wrote:
You ID’d only the very strongest peak and
at only 7 total counts some would argue that is insufficient to make a claim
considering close ?overlap and confirming with secondary peaks . What
about the more subtle peaks that are going to take a much longer time to
develop? Use longer count times and find out what you’re missing or not.
Dud
?
?
?
HI guys
Before doing this xrf .I knew little about timing belts and how they actually
function.
I thought made of just plain rubber or something like that until my car timing
belt almost snapped on the freeway weeks ago.
Replaced a new one together with the full timing belt kit.
Kept the old stuff for xrf.
Xrf was pretty short because? the peaks were appearing and therefore I
decided no need for a longer scan.
Xrf with Am 241 show iron and zinc peaks.
On further reading noted that these belts are made of rubber reinforced with
fibreglass,steel or neoprene.
Most likely the iron is in the cords and zinc as neoprene in the rubber
Pics are for a section of the timing belt exposing the cords and mca .
Thanks
Taray
|
Thanks for the longer scan Taray, but please don't hesitate to post? shorter scans with lower peak heights like you did yesterday. This is good practice and a source of discussion.
Basically that's how I learned, then improved all aspects of amateur scanning with whatever equipment I owned at the time.? Now I think my scans deserve the long time frames of days time, but this only in the last few weeks.
Geo
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Saturday, December 5, 2020 10:59:12 PM Subject: Re: [XRF] Xrf timing belt
Dude Yes I was expecting that ha ha Could have done a longer scan but I was running out of time yesterday. I acquired a cartoon of my car disposable parts goodies??late yesterday. They consist of used brake pads ,fan belt??plus tensioner and the timing belt assembly. The timing belt components are belt and multiple pulleys.Changing timing belt means replacing the the whole assembly . After noting the xrf results,I was doing some investigative xrf of the other components??to explain my findings. The metal??pulleys???also had iron and zinc. Also checked out sometimes zinc is added to the oil used to lubricate certain timing belt systems. Initially thought there was some contamination from nearby structures. But this was ruled out Car mechanics is very confusing too me especially when it comes to tensioners and lubricant oils on the timing belt. Preliminary impression was the zinc and iron could have rubbed??off on the??old timing belt and got impregnated as silly as it may sound. After I took a closer look at the timing belt ,the pieces of the puzzle started to fit. I have some other??parts to xrf next time like the used???belt pulleys,brake pads??and tensioners which are very metallic indeed. Here is longer scan of the timing belt Taray
On Sunday, December 6, 2020, 6:26 AM, Dude <dfemer@...> wrote:
You ID’d only the very strongest
peak and at only 7 total counts some would argue that is insufficient to make a
claim considering close ?overlap and confirming with secondary peaks . What
about the more subtle peaks that are going to take a much longer time to develop?
Use longer count times and find out what you’re missing or not.
Dud
?
?
?
HI guys
Before doing this xrf .I knew little about timing belts and how they actually
function.
I thought made of just plain rubber or something like that until my car timing
belt almost snapped on the freeway weeks ago.
Replaced a new one together with the full timing belt kit.
Kept the old stuff for xrf.
Xrf was pretty short because? the peaks were appearing and therefore I
decided no need for a longer scan.
Xrf with Am 241 show iron and zinc peaks.
On further reading noted that these belts are made of rubber reinforced with
fibreglass,steel or neoprene.
Most likely the iron is in the cords and zinc as neoprene in the rubber
Pics are for a section of the timing belt exposing the cords and mca .
Thanks
Taray
|
Geo Today I noticed during a long??daytime scan,the temperature at the back on the extreme left was rising about 8 degrees celsius??near the USB port. Elsewhere it is usually less than 3 or 4 degrees max But the temperature on system is normal on the display screen?
Ok let’s get back to automotive xrf Next item is used disc brakes The xrf elements detected is impressive. Metals detected are Titanium,iron,copper ,zirconium and barium .Barium and??graphite? ??form the pads. Taray
On Sunday, December 6, 2020, 11:27 PM, GEOelectronics@... wrote: Thanks for the longer scan Taray, but please don't hesitate to post? shorter scans with lower peak heights like you did yesterday. This is good practice and a source of discussion.
Basically that's how I learned, then improved all aspects of amateur scanning with whatever equipment I owned at the time.? Now I think my scans deserve the long time frames of days time, but this only in the last few weeks.
Geo
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Saturday, December 5, 2020 10:59:12 PM Subject: Re: [XRF] Xrf timing belt
Dude Yes I was expecting that ha ha Could have done a longer scan but I was running out of time yesterday. I acquired a cartoon of my car disposable parts goodies??late yesterday. They consist of used brake pads ,fan belt??plus tensioner and the timing belt assembly. The timing belt components are belt and multiple pulleys.Changing timing belt means replacing the the whole assembly . After noting the xrf results,I was doing some investigative xrf of the other components??to explain my findings. The metal??pulleys???also had iron and zinc. Also checked out sometimes zinc is added to the oil used to lubricate certain timing belt systems. Initially thought there was some contamination from nearby structures. But this was ruled out Car mechanics is very confusing too me especially when it comes to tensioners and lubricant oils on the timing belt. Preliminary impression was the zinc and iron could have rubbed??off on the??old timing belt and got impregnated as silly as it may sound. After I took a closer look at the timing belt ,the pieces of the puzzle started to fit. I have some other??parts to xrf next time like the used???belt pulleys,brake pads??and tensioners which are very metallic indeed. Here is longer scan of the timing belt Taray
On Sunday, December 6, 2020, 6:26 AM, Dude <dfemer@...> wrote:
You ID’d only the very strongest
peak and at only 7 total counts some would argue that is insufficient to make a
claim considering close ?overlap and confirming with secondary peaks . What
about the more subtle peaks that are going to take a much longer time to develop?
Use longer count times and find out what you’re missing or not.
Dud
?
?
?
HI guys
Before doing this xrf .I knew little about timing belts and how they actually
function.
I thought made of just plain rubber or something like that until my car timing
belt almost snapped on the freeway weeks ago.
Replaced a new one together with the full timing belt kit.
Kept the old stuff for xrf.
Xrf was pretty short because? the peaks were appearing and therefore I
decided no need for a longer scan.
Xrf with Am 241 show iron and zinc peaks.
On further reading noted that these belts are made of rubber reinforced with
fibreglass,steel or neoprene.
Most likely the iron is in the cords and zinc as neoprene in the rubber
Pics are for a section of the timing belt exposing the cords and mca .
Thanks
Taray
|
I always wondered what is in new no-asbestos brake pads. Now we know. A quick look= Titanium, Iron, Copper Zirconium, Barium. All showing Ka and Kb X-Rays I think.
Geo
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Sunday, December 6, 2020 10:14:34 AM Subject: Re: [XRF] Xrf timing belt
Geo Today I noticed during a long??daytime scan,the temperature at the back on the extreme left was rising about 8 degrees celsius??near the USB port. Elsewhere it is usually less than 3 or 4 degrees max But the temperature on system is normal on the display screen?
Ok let’s get back to automotive xrf Next item is used disc brakes The xrf elements detected is impressive. Metals detected are Titanium,iron,copper ,zirconium and barium .Barium and??graphite? ??form the pads. Taray
On Sunday, December 6, 2020, 11:27 PM, GEOelectronics@... wrote: Thanks for the longer scan Taray, but please don't hesitate to post? shorter scans with lower peak heights like you did yesterday. This is good practice and a source of discussion.
Basically that's how I learned, then improved all aspects of amateur scanning with whatever equipment I owned at the time.? Now I think my scans deserve the long time frames of days time, but this only in the last few weeks.
Geo
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Saturday, December 5, 2020 10:59:12 PM Subject: Re: [XRF] Xrf timing belt
Dude Yes I was expecting that ha ha Could have done a longer scan but I was running out of time yesterday. I acquired a cartoon of my car disposable parts goodies??late yesterday. They consist of used brake pads ,fan belt??plus tensioner and the timing belt assembly. The timing belt components are belt and multiple pulleys.Changing timing belt means replacing the the whole assembly . After noting the xrf results,I was doing some investigative xrf of the other components??to explain my findings. The metal??pulleys???also had iron and zinc. Also checked out sometimes zinc is added to the oil used to lubricate certain timing belt systems. Initially thought there was some contamination from nearby structures. But this was ruled out Car mechanics is very confusing too me especially when it comes to tensioners and lubricant oils on the timing belt. Preliminary impression was the zinc and iron could have rubbed??off on the??old timing belt and got impregnated as silly as it may sound. After I took a closer look at the timing belt ,the pieces of the puzzle started to fit. I have some other??parts to xrf next time like the used???belt pulleys,brake pads??and tensioners which are very metallic indeed. Here is longer scan of the timing belt Taray
On Sunday, December 6, 2020, 6:26 AM, Dude <dfemer@...> wrote:
You ID’d only the very strongest
peak and at only 7 total counts some would argue that is insufficient to make a
claim considering close ?overlap and confirming with secondary peaks . What
about the more subtle peaks that are going to take a much longer time to develop?
Use longer count times and find out what you’re missing or not.
Dud
?
?
?
HI guys
Before doing this xrf .I knew little about timing belts and how they actually
function.
I thought made of just plain rubber or something like that until my car timing
belt almost snapped on the freeway weeks ago.
Replaced a new one together with the full timing belt kit.
Kept the old stuff for xrf.
Xrf was pretty short because? the peaks were appearing and therefore I
decided no need for a longer scan.
Xrf with Am 241 show iron and zinc peaks.
On further reading noted that these belts are made of rubber reinforced with
fibreglass,steel or neoprene.
Most likely the iron is in the cords and zinc as neoprene in the rubber
Pics are for a section of the timing belt exposing the cords and mca .
Thanks
Taray
|
PS on the thermal, it is OK to put a small fan nearby to help cool the body.?
Later we will work on a simple heatsink for the case.......Fins are good, not much heat to transfrer to air about 1 Watt
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Sunday, December 6, 2020 10:14:34 AM Subject: Re: [XRF] Xrf timing belt
Geo Today I noticed during a long??daytime scan,the temperature at the back on the extreme left was rising about 8 degrees celsius??near the USB port. Elsewhere it is usually less than 3 or 4 degrees max But the temperature on system is normal on the display screen?
Ok let’s get back to automotive xrf Next item is used disc brakes The xrf elements detected is impressive. Metals detected are Titanium,iron,copper ,zirconium and barium .Barium and??graphite? ??form the pads. Taray
On Sunday, December 6, 2020, 11:27 PM, GEOelectronics@... wrote: Thanks for the longer scan Taray, but please don't hesitate to post? shorter scans with lower peak heights like you did yesterday. This is good practice and a source of discussion.
Basically that's how I learned, then improved all aspects of amateur scanning with whatever equipment I owned at the time.? Now I think my scans deserve the long time frames of days time, but this only in the last few weeks.
Geo
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Saturday, December 5, 2020 10:59:12 PM Subject: Re: [XRF] Xrf timing belt
Dude Yes I was expecting that ha ha Could have done a longer scan but I was running out of time yesterday. I acquired a cartoon of my car disposable parts goodies??late yesterday. They consist of used brake pads ,fan belt??plus tensioner and the timing belt assembly. The timing belt components are belt and multiple pulleys.Changing timing belt means replacing the the whole assembly . After noting the xrf results,I was doing some investigative xrf of the other components??to explain my findings. The metal??pulleys???also had iron and zinc. Also checked out sometimes zinc is added to the oil used to lubricate certain timing belt systems. Initially thought there was some contamination from nearby structures. But this was ruled out Car mechanics is very confusing too me especially when it comes to tensioners and lubricant oils on the timing belt. Preliminary impression was the zinc and iron could have rubbed??off on the??old timing belt and got impregnated as silly as it may sound. After I took a closer look at the timing belt ,the pieces of the puzzle started to fit. I have some other??parts to xrf next time like the used???belt pulleys,brake pads??and tensioners which are very metallic indeed. Here is longer scan of the timing belt Taray
On Sunday, December 6, 2020, 6:26 AM, Dude <dfemer@...> wrote:
You ID’d only the very strongest
peak and at only 7 total counts some would argue that is insufficient to make a
claim considering close ?overlap and confirming with secondary peaks . What
about the more subtle peaks that are going to take a much longer time to develop?
Use longer count times and find out what you’re missing or not.
Dud
?
?
?
HI guys
Before doing this xrf .I knew little about timing belts and how they actually
function.
I thought made of just plain rubber or something like that until my car timing
belt almost snapped on the freeway weeks ago.
Replaced a new one together with the full timing belt kit.
Kept the old stuff for xrf.
Xrf was pretty short because? the peaks were appearing and therefore I
decided no need for a longer scan.
Xrf with Am 241 show iron and zinc peaks.
On further reading noted that these belts are made of rubber reinforced with
fibreglass,steel or neoprene.
Most likely the iron is in the cords and zinc as neoprene in the rubber
Pics are for a section of the timing belt exposing the cords and mca .
Thanks
Taray
|
Dude I did an xrf scan on my red transmission oil. Sampling was repacking on??a thin kitchen plastic . Recently learned that these engine oils??have a color coding system Various additives such as P ,Ca,Mg,Zn in ppm doses . P is usually the highest followed by Zn in new oil. But old oil with wear and tear several other metals get added such as Al,Cr,Fe ,Cu ,Ag and Sn sometimes as metal chips in old engines .P drops in old oil but it is not measurable here anyway. The scan was hesitantly stopped cos I noticed some??potential heating issues on my detector? I need to improve my ventilation to promote heat loss . ?I don’t think this transmission oil is gonna ignite when in contact with 59 keV gamma rays. Anyway the scan results are rather flat? But if stretch our imagination a bit ,there could be Zn peak? I guess a used oil will probably reveal better results??. In my attempt to take a snapshot of the oil,I spilled some on the floor and on??my pants.Dealing with oils is a messy job for some? Taray
On Monday, December 7, 2020, 3:03 AM, GEOelectronics@... wrote: PS on the thermal, it is OK to put a small fan nearby to help cool the body.?
Later we will work on a simple heatsink for the case.......Fins are good, not much heat to transfrer to air about 1 Watt
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Sunday, December 6, 2020 10:14:34 AM Subject: Re: [XRF] Xrf timing belt
Geo Today I noticed during a long??daytime scan,the temperature at the back on the extreme left was rising about 8 degrees celsius??near the USB port. Elsewhere it is usually less than 3 or 4 degrees max But the temperature on system is normal on the display screen?
Ok let’s get back to automotive xrf Next item is used disc brakes The xrf elements detected is impressive. Metals detected are Titanium,iron,copper ,zirconium and barium .Barium and??graphite? ??form the pads. Taray
On Sunday, December 6, 2020, 11:27 PM, GEOelectronics@... wrote: Thanks for the longer scan Taray, but please don't hesitate to post? shorter scans with lower peak heights like you did yesterday. This is good practice and a source of discussion.
Basically that's how I learned, then improved all aspects of amateur scanning with whatever equipment I owned at the time.? Now I think my scans deserve the long time frames of days time, but this only in the last few weeks.
Geo
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Saturday, December 5, 2020 10:59:12 PM Subject: Re: [XRF] Xrf timing belt
Dude Yes I was expecting that ha ha Could have done a longer scan but I was running out of time yesterday. I acquired a cartoon of my car disposable parts goodies??late yesterday. They consist of used brake pads ,fan belt??plus tensioner and the timing belt assembly. The timing belt components are belt and multiple pulleys.Changing timing belt means replacing the the whole assembly . After noting the xrf results,I was doing some investigative xrf of the other components??to explain my findings. The metal??pulleys???also had iron and zinc. Also checked out sometimes zinc is added to the oil used to lubricate certain timing belt systems. Initially thought there was some contamination from nearby structures. But this was ruled out Car mechanics is very confusing too me especially when it comes to tensioners and lubricant oils on the timing belt. Preliminary impression was the zinc and iron could have rubbed??off on the??old timing belt and got impregnated as silly as it may sound. After I took a closer look at the timing belt ,the pieces of the puzzle started to fit. I have some other??parts to xrf next time like the used???belt pulleys,brake pads??and tensioners which are very metallic indeed. Here is longer scan of the timing belt Taray
On Sunday, December 6, 2020, 6:26 AM, Dude <dfemer@...> wrote:
You ID’d only the very strongest
peak and at only 7 total counts some would argue that is insufficient to make a
claim considering close ?overlap and confirming with secondary peaks . What
about the more subtle peaks that are going to take a much longer time to develop?
Use longer count times and find out what you’re missing or not.
Dud
?
?
?
HI guys
Before doing this xrf .I knew little about timing belts and how they actually
function.
I thought made of just plain rubber or something like that until my car timing
belt almost snapped on the freeway weeks ago.
Replaced a new one together with the full timing belt kit.
Kept the old stuff for xrf.
Xrf was pretty short because? the peaks were appearing and therefore I
decided no need for a longer scan.
Xrf with Am 241 show iron and zinc peaks.
On further reading noted that these belts are made of rubber reinforced with
fibreglass,steel or neoprene.
Most likely the iron is in the cords and zinc as neoprene in the rubber
Pics are for a section of the timing belt exposing the cords and mca .
Thanks
Taray
|
" In my attempt to take a snapshot of the oil, I spilled some on the floor and on??my pants."
Had to laugh a little.
|
" In my attempt to take a snapshot of the oil,I spilled some on the floor and on??my pants."
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Sunday, December 6, 2020 10:06:38 PM Subject: Re: [XRF] Xrf timing belt
Dude I did an xrf scan on my red transmission oil. Sampling was repacking on??a thin kitchen plastic . Recently learned that these engine oils??have a color coding system Various additives such as P ,Ca,Mg,Zn in ppm doses . P is usually the highest followed by Zn in new oil. But old oil with wear and tear several other metals get added such as Al,Cr,Fe ,Cu ,Ag and Sn sometimes as metal chips in old engines .P drops in old oil but it is not measurable here anyway. The scan was hesitantly stopped cos I noticed some??potential heating issues on my detector? I need to improve my ventilation to promote heat loss . ?I don’t think this transmission oil is gonna ignite when in contact with 59 keV gamma rays. Anyway the scan results are rather flat? But if stretch our imagination a bit ,there could be Zn peak? I guess a used oil will probably reveal better results??. In my attempt to take a snapshot of the oil,I spilled some on the floor and on??my pants.Dealing with oils is a messy job for some? Taray
On Monday, December 7, 2020, 3:03 AM, GEOelectronics@... wrote: PS on the thermal, it is OK to put a small fan nearby to help cool the body.?
Later we will work on a simple heatsink for the case.......Fins are good, not much heat to transfrer to air about 1 Watt
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Sunday, December 6, 2020 10:14:34 AM Subject: Re: [XRF] Xrf timing belt
Geo Today I noticed during a long??daytime scan,the temperature at the back on the extreme left was rising about 8 degrees celsius??near the USB port. Elsewhere it is usually less than 3 or 4 degrees max But the temperature on system is normal on the display screen?
Ok let’s get back to automotive xrf Next item is used disc brakes The xrf elements detected is impressive. Metals detected are Titanium,iron,copper ,zirconium and barium .Barium and??graphite? ??form the pads. Taray
On Sunday, December 6, 2020, 11:27 PM, GEOelectronics@... wrote: Thanks for the longer scan Taray, but please don't hesitate to post? shorter scans with lower peak heights like you did yesterday. This is good practice and a source of discussion.
Basically that's how I learned, then improved all aspects of amateur scanning with whatever equipment I owned at the time.? Now I think my scans deserve the long time frames of days time, but this only in the last few weeks.
Geo
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Saturday, December 5, 2020 10:59:12 PM Subject: Re: [XRF] Xrf timing belt
Dude Yes I was expecting that ha ha Could have done a longer scan but I was running out of time yesterday. I acquired a cartoon of my car disposable parts goodies??late yesterday. They consist of used brake pads ,fan belt??plus tensioner and the timing belt assembly. The timing belt components are belt and multiple pulleys.Changing timing belt means replacing the the whole assembly . After noting the xrf results,I was doing some investigative xrf of the other components??to explain my findings. The metal??pulleys???also had iron and zinc. Also checked out sometimes zinc is added to the oil used to lubricate certain timing belt systems. Initially thought there was some contamination from nearby structures. But this was ruled out Car mechanics is very confusing too me especially when it comes to tensioners and lubricant oils on the timing belt. Preliminary impression was the zinc and iron could have rubbed??off on the??old timing belt and got impregnated as silly as it may sound. After I took a closer look at the timing belt ,the pieces of the puzzle started to fit. I have some other??parts to xrf next time like the used???belt pulleys,brake pads??and tensioners which are very metallic indeed. Here is longer scan of the timing belt Taray
On Sunday, December 6, 2020, 6:26 AM, Dude <dfemer@...> wrote:
You ID’d only the very strongest
peak and at only 7 total counts some would argue that is insufficient to make a
claim considering close ?overlap and confirming with secondary peaks . What
about the more subtle peaks that are going to take a much longer time to develop?
Use longer count times and find out what you’re missing or not.
Dud
?
?
?
HI guys
Before doing this xrf .I knew little about timing belts and how they actually
function.
I thought made of just plain rubber or something like that until my car timing
belt almost snapped on the freeway weeks ago.
Replaced a new one together with the full timing belt kit.
Kept the old stuff for xrf.
Xrf was pretty short because? the peaks were appearing and therefore I
decided no need for a longer scan.
Xrf with Am 241 show iron and zinc peaks.
On further reading noted that these belts are made of rubber reinforced with
fibreglass,steel or neoprene.
Most likely the iron is in the cords and zinc as neoprene in the rubber
Pics are for a section of the timing belt exposing the cords and mca .
Thanks
Taray
|
Well I stretched my
imagination but I’m not convinced there’s any Zn.? Try a used oil. I may be the
levels are too low to pull out
dud
?
?
Dude
I did an xrf scan on my
red transmission oil.
Sampling was repacking
on??a thin kitchen plastic .
Recently learned that
these engine oils??have a color coding system
Various additives such as
P ,Ca,Mg,Zn in ppm doses .
P is usually the highest followed
by Zn in new oil.
But old oil with wear and
tear several other metals get added such as Al,Cr,Fe ,Cu ,Ag and Sn sometimes
as metal chips in old engines .P drops in old oil but it is not measurable here
anyway.
The scan was hesitantly
stopped cos I noticed some??potential heating issues
on my detector?
I need to improve my
ventilation to promote heat loss .
?I don’t think this
transmission oil is gonna ignite when in contact with 59 keV gamma rays.
Anyway the scan results
are rather flat?
But if stretch our
imagination a bit ,there could be Zn peak?
I guess a used oil will
probably reveal better results??.
In my attempt to take a
snapshot of the oil,I spilled some on the floor and on??my pants.Dealing with oils
is a messy job for some?
Taray
?
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On Monday,
December 7, 2020, 3:03 AM, GEOelectronics@... wrote:
PS on the thermal, it is
OK to put a small fan nearby to help cool the body.?
Later we will work on a
simple heatsink for the case.......Fins are good, not much heat to transfrer to
air about 1 Watt
From: "taray singh via
groups.io" <sukhjez@...>
To: [email protected]
Sent: Sunday, December 6, 2020
10:14:34 AM
Subject: Re: [XRF] Xrf timing belt
Geo
Today I
noticed during a long??daytime
scan,the temperature at the back on the extreme left was rising about 8 degrees
celsius??near the
USB port.
Elsewhere
it is usually less than 3 or 4 degrees max
But the
temperature on system is normal on the display screen?
?
Ok let’s
get back to automotive xrf
Next item
is used disc brakes
The xrf
elements detected is impressive.
Metals
detected are Titanium,iron,copper ,zirconium and barium .Barium and??graphite?
??form the pads.
Taray
On Sunday, December 6, 2020, 11:27 PM,
GEOelectronics@... wrote:
Thanks for the longer scan
Taray, but please don't hesitate to post? shorter scans with lower peak
heights like you did yesterday.
This is good practice and
a source of discussion.
Basically that's how I
learned, then improved all aspects of amateur scanning with whatever equipment
I owned at the time.? Now I think my scans deserve the long time frames of
days time, but this only in the last few weeks.
From: "taray singh via
groups.io" <sukhjez@...>
To: [email protected]
Sent: Saturday, December 5, 2020
10:59:12 PM
Subject: Re: [XRF] Xrf timing belt
Dude
Yes I was expecting that ha ha
Could have done a longer scan but I was running out of time
yesterday.
I
acquired a cartoon of my car disposable parts goodies??late
yesterday.
They
consist of used brake pads ,fan belt??plus
tensioner and the timing belt assembly.
The
timing belt components are belt and multiple pulleys.Changing timing belt means
replacing the the whole assembly .
After
noting the xrf results,I was doing some investigative xrf of the other
components??to
explain my findings.
The
metal??pulleys???also had
iron and zinc.
Also
checked out sometimes zinc is added to the oil used to lubricate certain timing
belt systems.
Initially
thought there was some contamination from nearby structures.
But this
was ruled out
Car
mechanics is very confusing too me especially when it comes to tensioners and
lubricant oils on the timing belt.
Preliminary
impression was the zinc and iron could have rubbed??off on
the??old timing belt and got impregnated as silly as it may sound.
After I
took a closer look at the timing belt ,the pieces of the puzzle started to fit.
I have
some other??parts to
xrf next time like the used???belt
pulleys,brake pads??and
tensioners which are very metallic indeed.
Here is
longer scan of the timing belt
Taray
?
On Sunday, December 6, 2020, 6:26 AM, Dude
<dfemer@...> wrote:
You ID’d
only the very strongest peak and at only 7 total counts some would argue that
is insufficient to make a claim considering close ?overlap and confirming
with secondary peaks . What about the more subtle peaks that are going to take
a much longer time to develop? Use longer count times and find out what you’re
missing or not.
Dud
?
?
?
HI guys
Before doing this xrf .I knew little about timing belts and how they actually
function.
I thought made of just plain rubber or something like that until my car timing
belt almost snapped on the freeway weeks ago.
Replaced a new one together with the full timing belt kit.
Kept the old stuff for xrf.
Xrf was pretty short because? the peaks were appearing and therefore I
decided no need for a longer scan.
Xrf with Am 241 show iron and zinc peaks.
On further reading noted that these belts are made of rubber reinforced with
fibreglass,steel or neoprene.
Most likely the iron is in the cords and zinc as neoprene in the rubber
Pics are for a section of the timing belt exposing the cords and mca .
Thanks
Taray
?
?
|
To make matters worst..
Red oil on ?blue jeans..
Anyway this gives me an idea for another project?
Xrf ?blue jeans to detect dyes used,,,
Recently I picked up strong bromine on my dark blue mobile data modem surface paint.
Taray
|
Bromine- remember bromine is used extensively in electronics as a flame retardant in printed circuit boards. and clothing too.
Geo
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Sunday, December 6, 2020 10:52:32 PM Subject: Re: [XRF] Xrf timing belt
To make matters worst..
Red oil on ?blue jeans..
Anyway this gives me an idea for another project?
Xrf ?blue jeans to detect dyes used,,,
Recently I picked up strong bromine on my dark blue mobile data modem surface paint.
Taray
|
Geo I anticipated??your bromine response . In addition potassium bromate is added as bread improver helping dough to ferment and rise faster I checked my regular bread and no bromine detected Maybe??I gotta check??those soft fluffy ones??sold separately? Taray
On Monday, December 7, 2020, 8:18 PM, GEOelectronics@... wrote: Bromine- remember bromine is used extensively in electronics as a flame retardant in printed circuit boards. and clothing too.
Geo
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Sunday, December 6, 2020 10:52:32 PM Subject: Re: [XRF] Xrf timing belt
To make matters worst..
Red oil on ?blue jeans..
Anyway this gives me an idea for another project?
Xrf ?blue jeans to detect dyes used,,,
Recently I picked up strong bromine on my dark blue mobile data modem surface paint.
Taray
|
Good tip. Meantime there's toothpaste and hair shampoo.
Geo
From: "taray singh via groups.io" <sukhjez@...> n? To: [email protected]Sent: Monday, December 7, 2020 7:33:28 AM Subject: Re: [XRF] Xrf timing belt
Geo I anticipated??your bromine response . In addition potassium bromate is added as bread improver helping dough to ferment and rise faster I checked my regular bread and no bromine detected Maybe??I gotta check??those soft fluffy ones??sold separately? Taray
On Monday, December 7, 2020, 8:18 PM, GEOelectronics@... wrote: Bromine- remember bromine is used extensively in electronics as a flame retardant in printed circuit boards. and clothing too.
Geo
From: "taray singh via groups.io" <sukhjez@...> To: [email protected]Sent: Sunday, December 6, 2020 10:52:32 PM Subject: Re: [XRF] Xrf timing belt
To make matters worst..
Red oil on ?blue jeans..
Anyway this gives me an idea for another project?
Xrf ?blue jeans to detect dyes used,,,
Recently I picked up strong bromine on my dark blue mobile data modem surface paint.
Taray
|
As an interesting aside to the bromine discussion – ? When I worked at a nuclear power plant a few years ago, we were consistently seeing airborne Bromine-82 in air samples collected from only one of two air sampling locations in boiling-water reactor drywell.? Most people would suspect it was a fission product, but Br-82 is pretty low on the Mae West curves… not impossible, but unlikely.? Plus, we weren’t seeing any other fissions products like Br-84, Sr-89, Kryptons, Xenons, Iodines, etc. – just the Br-82.? After doing a little digging, I found out they had used some fire-resistant lumber in that section of the drywell to shore up some scaffolding, and due to high radiation doses associated with removal of the wooden material, they decided to leave it in place.? Since it was fire-resistant, they weren’t concerned with any combustibility aspect of leaving it there.? Being in the drywell, it was exposed to a reasonable high neutron flux, and the naturally-occurring Br-81 (~49% abundance) was being activated to Br-82 and off-gassing into the drywell atmosphere.? As a halogen, it was collected on the charcoal canister used to monitor the drywell atmosphere just like radioactive iodine, and was showing up on our gamma spectroscopy analyses of the drywell atmosphere samples. ? Ahh, the good ole’ days!? ? Ken ?
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From: GEOelectronics@...Sent: Monday, December 7, 2020 07:18 AM To: [email protected]Subject: Re: [XRF] Xrf timing belt ? Bromine- remember bromine is used extensively in electronics as a flame retardant in printed circuit boards. and clothing too. ?
|
Pretty cool Ken, did you ever test any Co-60 activated hardware?
Geo
From: "Ken Sejkora" <kjsejkora@...> To: [email protected]Sent: Monday, December 7, 2020 2:46:22 PM Subject: Re: [XRF] Xrf timing belt
As an interesting aside to the bromine discussion – ? When I worked at a nuclear power plant a few years ago, we were consistently seeing airborne Bromine-82 in air samples collected from only one of two air sampling locations in boiling-water reactor drywell.? Most people would suspect it was a fission product, but Br-82 is pretty low on the Mae West curves… not impossible, but unlikely.? Plus, we weren’t seeing any other fissions products like Br-84, Sr-89, Kryptons, Xenons, Iodines, etc. – just the Br-82.? After doing a little digging, I found out they had used some fire-resistant lumber in that section of the drywell to shore up some scaffolding, and due to high radiation doses associated with removal of the wooden material, they decided to leave it in place.? Since it was fire-resistant, they weren’t concerned with any combustibility aspect of leaving it there.? Being in the drywell, it was exposed to a reasonable high neutron flux, and the naturally-occurring Br-81 (~49% abundance) was being activated to Br-82 and off-gassing into the drywell atmosphere.? As a halogen, it was collected on the charcoal canister used to monitor the drywell atmosphere just like radioactive iodine, and was showing up on our gamma spectroscopy analyses of the drywell atmosphere samples. ? Ahh, the good ole’ days!? ? Ken ? ? Bromine- remember bromine is used extensively in electronics as a flame retardant in printed circuit boards. and clothing too. ?
|
