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materials processing
- In tin processing: Tin-based solders
…tin is in solders for joining metals. The most common solders are basically alloys of lead and tin. Since these metals can be alloyed across the whole range of proportions, an infinite number of compositions is possible; in practice, though, most solders contain from 30 to 70 percent tin, with…
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plastics
- In plastic: Joining
Some plastics can be joined by welding, in the same manner as metals—PVC and polyethylene tanks and ductwork being prime examples. More commonly, surfaces are joined by being brought into contact with one another and heated by conduction or by dielectric heating. Heat sealing…
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