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Leaded Parts Through a Lead-free WaveBoard Talk
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TranscriptPhil We will be assembling circuit boards using a RoHS compliant assembly line, however the customer does not have a RoHS lead-free requirement. Are there any concerns if we use a few leaded components in this process? Are we likely to contaminate our wave solder bath? Jim and Phil Jim It's just a very complex and a costly procedure to get that pot back again. But thinking in a more philosophical vein; don't enter variability into your process. It's not a good idea. You got a lead-free process; you want to keep it lead-free. Do not allow any contamination anywhere on the line - parts, stencil printer, anyplace that contamination can occur. You're taking a risk, and you don't want to introduce additional risks into your process if you don't have to. Phil So we recommend to get a feel for what's going on, that you send a sample from your bath out for analysis to your solder company or analysis lab to monitor to the various levels of contaminates in your solder bath. You should do this more frequently at the front end until you get a good feel for what's going on.Jim Phil Don't solder like my brother. Phil And don't solder like my brother. Jim And keep those kids away from the flux pot. |
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