|
|
Post by peterl78940 on Jan 1, 2009 17:15:21 GMT -5
I've silver soldered a nipple on the end of a copper tube, then slipped a coupling nut over the nipple from the other end of the tube, but this is a very short tube, and now to silver solder it to whatever it is soldered to,.... but how do I keep the nut from getting soldered onto the tube and/or the nipple while I am heating and soldering the tube onto whatever...  I've thought of painting the nipple and the nipple end of the tube with oil, tar, testors-model-paint, ..., how would you do it, what would you use thanks, Pete Lawrence. |
|
|
|
Post by Ed Hume on Jan 1, 2009 21:30:10 GMT -5
Pete,
In Kozo's plans for the check valves on the boiler sides, he shows making a threaded piece for the union nut to hold it up at the nozzle side away from the new joint. Do this and keep flux away from the nut and nozzle and you will be ok. Oil or a graphite pencil lines are traditional ways to prevent solder wetting.
Ed
|
|
|
|
Post by powderhorn01 on Mar 21, 2011 22:36:00 GMT -5
A jewelers trick is to coat anything you don't want soldered with Liquid Paper white out. Just don't flux over it. Or an real old time trick is to use yellow ochre to coat the area. Something else is the Tix Anti Flux compound.
|
|
