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Solder Pot Standards - Solder Pot Adherence
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Solder Pot Standards - Solder Pot Adherence
Solder Pot Standards - Solder Pot Adherence
Solder Pot Standards - Solder Pot Adherence
Solder Pot Standards - Solder Pot Adherence
Solder Pot Standards - Solder Pot Adherence
Solder Pot Standards - Solder Pot Adherence
Solder Pot Standards - Solder Pot Adherence
Solder Pot Standards - Solder Pot Adherence
Solder Pot Standards - Solder Pot Adherence
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  Post Number #1  
Old 2nd May 2017, 08:12 AM
CFHill

 
 
Total Posts: 6
Please Help! Solder Pot Standards - Solder Pot Adherence

I'm trying to find a standard or 2 to use for our solder pot adherence. We are ISO9000 but have AS9100 requirements from some customers. I'm looking for the tighter of the standards that I can implement to keep us audit safe.

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  Post Number #2  
Old 2nd May 2017, 09:06 AM
howste's Avatar
howste

 
 
Total Posts: 5,061
Re: Solder Pot Standards

I don't claim to be an expert on solder pots, but our solder pot work instruction references J-STD-001. Our QMS is certified to ISO 9001 and AS9100.
Thanks to howste for your informative Post and/or Attachment!
  Post Number #3  
Old 2nd May 2017, 10:42 AM
CFHill

 
 
Total Posts: 6
Re: Solder Pot Standards

Thank you, I'll pull it up. I'm new at this company and the pots are at various stages as noted on tags. I'm trying to get some consistency.
  Post Number #4  
Old 2nd May 2017, 06:42 PM
smonsalve

 
 
Total Posts: 7
Re: Solder Pot Standards - Solder Pot Adherence

Neither standard will tell you what to do regarding pots. Read J-STD-001 for more information. We are ISO/AS and work with J-STD-001. We control our pots with a form that controls the time between solder changes and usage it also says if the pot is leaded solder or lead free solder.
Thank You to smonsalve for your informative Post and/or Attachment!
  Post Number #5  
Old 4th May 2017, 09:20 AM
CFHill

 
 
Total Posts: 6
Re: Solder Pot Standards - Solder Pot Adherence

You are correct. I read through both specifications and solder pots are not specifically noted. I did inquire about setting controls as you mentioned and it was accepted. Now I just need to set them up.
Thank you for your response. Learning the electronic industry is an upward hill climb!
  Post Number #6  
Old 4th May 2017, 09:37 AM
howste's Avatar
howste

 
 
Total Posts: 5,061
Re: Solder Pot Standards - Solder Pot Adherence

Quote:
In Reply to Parent Post by CFHill View Post

You are correct. I read through both specifications and solder pots are not specifically noted. I did inquire about setting controls as you mentioned and it was accepted. Now I just need to set them up.
Thank you for your response. Learning the electronic industry is an upward hill climb!
Solder pots are mentioned once in J-STD-001 Rev F in Appendix A, which is labeled Guidelines for Soldering Tools and Equipment:
Quote:
A-6 SOLDER POTS
Solder pots should maintain the solder temperature within 5C [ 9F] of the selected temperature. Solder pots are to be grounded.
As it's labeled as "guidelines" and uses the word "should," I can't say they're requirements, but I would comply anyway.
  Post Number #7  
Old 4th May 2017, 01:36 PM
smonsalve

 
 
Total Posts: 7
Re: Solder Pot Standards - Solder Pot Adherence

Quote:
In Reply to Parent Post by howste View Post

Solder pots are mentioned once in J-STD-001 Rev F in Appendix A, which is labeled Guidelines for Soldering Tools and Equipment:

As it's labeled as "guidelines" and uses the word "should," I can't say they're requirements, but I would comply anyway.
Don't forget to include your solder pot in the calibration schedule.
Thanks to smonsalve for your informative Post and/or Attachment!
  Post Number #8  
Old 12th May 2017, 08:32 PM
scooterbaby

 
 
Total Posts: 5
Re: Solder Pot Standards - Solder Pot Adherence

Thanks for mentioning calibration! You may get the question asked about the temperature from an auditor... How do you know that the temperature is correct? Perhaps it is a new digital type - it may still need to be "Verified" (Temperature on display is temperature in pot) at prescribed intervals with probes appropriate for the temperature.

The other issue and it may also fall under calibration / verification is the solder mixture. Most all solders are not 100% lead they are a mixture of lead (Pb) and Tin (Sn) typical would be a blend such as 63/37. 63% Tin and 37% Lead or 60/40 same principal. So, where this is going is when you first put solder in the pot most likely it is in balance (63/37) then as you use the pot and/or it is left heated up all day, certain metals burn off or get used up and the pot will end up out of balance. What this does is take us down another slippery slope... Now, how can you assure that what ever you are soldering is still acceptably soldered?

This now falls into the dreaded "Process Validation" definition.
I would suggest doing a full fledged IQ/OQ/PQ on the solder pot soldering process, including trials at different times like after pot is used for 1 week - will you still be soldering with the solder mixture you started with?

Just by looking you will not be able to tell unfortunately the solder is in balance. Based on risk and who the end customer is you may have to send out solder samples from the pot at various times to determine when it will go bad on you. Also this would be your process for calibration - seeing what the mixture is then making adjustments by adding Lead (Pb) or Tin (Sn) then testing until in balance. Other people find out how many hours/days/weeks before solder balance begins to drift then they just routinely just dump the whole pot and start all over with new solder.

*I used the example of leaded solder because of the simplicity, if you are using lead free solder like a SAC 305 you do not have (Pb) but you have 3 metals Sn, Ag, Cu. (More to keep in balance)

If you are lucky enough to have an XRF gun in house checking solder is quick and painless... You can send out solder samples to the solder manufacturer or if you are on the cheap go to a jewelry store or other place that buys gold, they often have an XRF gun and can shoot your solder sample maybe for free maybe for a few bucks.

So, between the temperature and the solder balance - Thinking that you can just plug in the solder pot add solder and you are all set is a huge misconception. sorry for the epic book, perhaps it will help someone.
Thanks to scooterbaby for your informative Post and/or Attachment!
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