|julian atkins||22/11/2013 10:08:00|
1246 forum posts
i dont agree with eric' s advice above. there are lots of silver soldering operations on all sorts of components and fabrications and boilers where the flame and gases from the flame are not in direct contact with the silver solder, the set up being heated from the opposite side of the metal to which the silver solder is applied. the flux cleans the joint and surrounding metal. in fact wherever possible i apply the flame on the otherside of the job to that where the silver solder has been or will be applied as there can then be no doubt of the silver solder flowing when the metal gets to the right temperature. rings of silver solder around boiler tubes is perhaps the best known example of this practice .
|Speedy Builder5||22/11/2013 10:43:54|
|2494 forum posts|
Curious - On boiler tubes, do you mean put the rings on the inside of the boiler and apply the heat from the firebox side or put the rings on the firebox side and somehow get the heat to flow between the tubes on the 'inside' of the boiler. Same question for the smokebox tubeplate.
|julian atkins||22/11/2013 11:33:52|
1246 forum posts
rings on the water space side around the tubes and heat from inside the firebox. there lots of other situations where you heat from the opposite of the metal from where the silver solder is applied. crown stay tops to outer wrapper being another example. my point is that the 'hot inert gases' as desribed by eric play no part in silver soldering.
879 forum posts
Go onto the CupAlloys site you will find everything you need
Please login to post a reply.
Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!
You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.
Click THIS LINK for full contact details.
For subscription issues please see THIS LINK.