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13 Cards in this Set
- Front
- Back
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What kind of alloy is soft solder? |
Commonly done in sheet metal shops Used a lead tin alloy |
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Sheet metal shops always use what kind of solder? |
50-50 tin and lead The tin content is always the first number 60-40 solder is more expensive |
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What does flux do? |
Cleans the metal and removes the oxides |
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What controls where the solder will flow? |
The placement of the flux |
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What kind of flux will you use when soldering galvanized? |
Muriatic acid ( commercial strength hydrochloric acid) |
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What is cut acid? |
Trade name for zinc chloride Used for common metals brass copper lead ternplate tinplate and stainless |
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What kind of solder would you use on copper? |
Rosin |
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The parts of a soldering iron: Made of copper |
Back (Definition) |
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What do you use to tin a soldering copper: |
Sal ammoniac Tinning keeps the point free of dirt and corrosion |
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For soldering vertical or overhead seams: |
Only one side of the iron is tinned so the solder will flow and stay on that one side |
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What are the two types of soldering? |
Skimming and sweating Sweating you pull the solder into the joint- gives a stronger less likely to leak joint Skimming- laying the solder over the surface of the joint |
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For soldering stainless what kind of flux? |
Phosphoric acid |
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Soldering brass and copper what kind of flux? |
Cut acid or rosin flux |
