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Post by quickbeam on Jan 24, 2011 21:53:05 GMT
hi folks, new to this forum thing. im building a 5" evening star to les warnett drawings. just a quick query on the boiler really. the boiler it tapered and shows a strap joining at the bottom but it shows no rivet details. does it need it or is just silver soldering sufficent?  ive looked at the articles in EIM but it does not help really. any advice would be great. Ben |
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Post by GWRdriver on Jan 24, 2011 22:48:18 GMT
Ben,
I use them because I don't know with certainty that there is no component of shear working on the rivets in a butt-strap joint. With most other areas of a boiler my contention is that virtually 100% of joint strength is in the solder, and that may be so with a butt-strap joint, but in any case you will need something to hold the joint together and the strap in place while you solder.
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waggy
Statesman
Posts: 744
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Post by waggy on Jan 26, 2011 16:12:41 GMT
Ben,
Sent you a private message requesting your help.
Waggy.
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waggy
Statesman
Posts: 744
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Post by waggy on Jan 28, 2011 19:56:33 GMT
Ben,
I got the drawing of the dome from another member, thanks for looking though. Good luck with the boiler.
Waggy.
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Post by Shawki Shlemon on Jan 31, 2011 7:54:52 GMT
As I understand it , the rivets are important as they conduct heat across the joint , silver solder is not as good heat conductor . As a guide 1" spacing and the diameter of the rivets equal to the copper thickness .
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ive looked at the articles in EIM but it does not help really. any advice would be great.
