Silver Solder

[500sks]

Looking for silver solder info. I want to replace a couple of broken sections of carbide on the skegs for my snowmobile. I have been told the carbide is silver soldered to the host bar. Are there different types of solder and what flux do I use. Will it matter that I could be useing a different solder composition? Thanks for looking.

 

[Vegaman_Dan]

Solder comes in different temperature levels. Jewelery makers typically use different types so that they can solder on pieces without melting off previous attached items.

Silver soldering is not cheap, but it's pretty darn strong. I'd look to jewelry making supplies online.

 

[Ed ke6bnl]

I like this place don't have the name but the phone number is 253 476 1338 they are specialist in silver soldier for saw blades I bought silver soldier and flux from then they are very helpful and best prices

 

[sharkytm]

I've got a bunch of silver solder that I picked up at a garage sale for cheap. I could sell you a few pieces for less than they normally sell for online. Drop me a PM if you are interested.

 

[OccupantRJ]

Wire type silver solder runs about $20 a troy ounce. Machine and welding supply is one source in the East. S200 flux works well. Sil-phos is one type of silver solder available in sheet form for large area attachment. A 3/4inch square is about 25 cents in bulk purchase. We silver solder carbide pieces to steel shanks to make our own machining tooling with silver solder, and also use it in our production processes.

 

[Zeke]

Stay-Brite is the name to search for info and 4% will probably work fine. If you get into the 50% stuff, remember, you're buying silver. They seem to like their own Stay-Brite8. I didn't see any comparative strength charts.

 

[csp]

Is Sil-Fos an option?

If so, heating and A/C supply houses are another source.

 

[zmaxmotorsports]

Stay-Brite is the name to search for info and 4% will probably work fine. If you get into the 50% stuff, remember, you're buying silver. They seem to like their own Stay-Brite8. I didn't see any comparative strength charts.

Ive used stay brite 8 for years on plumbing/refrigiration stuff,never used it for anything structural like that

 

[Bondo]

Looking for silver solder info. I want to replace a couple of broken sections of carbide on the skegs for my snowmobile. I have been told the carbide is silver soldered to the host bar. Are there different types of solder and what flux do I use. Will it matter that I could be useing a different solder composition? Thanks for looking.

Ayuh,.... Or you could just Braze 'em on....

 

[500sks]

Thanks for the responses guys. How much difference is there in silver solder strength? I need the solder to be tough and impact resistant. Some silver solder melts at 535 degrees and others at 1200+. Does higher melting make it stronger?

 

[500sks]

I also found it in a paste is that better? Why would you use a paste? Sorry for all the questions.

 

[OccupantRJ]

I also found it in a paste is that better? Why would you use a paste? Sorry for all the questions.

A paste can be injected onto a specific area of a piece to be soldered by production equipment, using devices similar to the way a caulking gun works. A chain conveyor (think chain saw) , or rotary table can be used to load the parts into, which will then have paste injected onto the joint area, then pass through multiple flames or an induction heater to melt the solder. The parts can then turn upside down at the end, and parts drop off into a container of water to expulse the flux off the joint so less cleaning is needed. Fusion is one maker of this equipment, and also sells the paste.

 

[500sks]

RJ please take a shot at my question above the paste question. Thanks

 

[OccupantRJ]

RJ please take a shot at my question above the paste question. Thanks

The subject can get rather extensive, I don't have a ready answer for you. My experience is with only a few of the silver alloys. Our silver solder has to have a fairly high melting point, as it is used in production to attach the working end on a heated tool. There is silver bearing soldering, then there is silver bearing brazing, with needed temperatures seeming to be the determining factor. I would suggest a google search of silver soldering and silver brazing, and you will see what I mean. I like silver soldering for small attachments with fitted joints, but I prefer brass brazing for mechanical repairs, between the two. The lines sometimes become fuzzy as to which to use.

 

[500sks]

RJ thanks for the reply. Do you know why you would use Cadmium? I think Cadmium is pretty nasty stuff.

 

[OccupantRJ]

RJ thanks for the reply. Do you know why you would use Cadmium? I think Cadmium is pretty nasty stuff.

No experience with cadmium other than as electroplating, and steering clear of it in welding and torching.

 

[sharkytm]

I replied to your PM. I've got Harris 15, and Harris Dynaflo.
Its not cheap to buy, and if you just need a few sticks, I'll send it for postage+handling.