[China Aluminum Industry Network] Different roles of lead-based alloys in different fields
In modern society, we have more and more applications and understanding of babbitt metal. As one of them, lead-based alloys have many advantages, such as low melting point, good fluidity, small shrinkage, good toughness, and softness. Hard suitable, smooth surface, and so on. Its role in application in different fields is also different.
1 Lead-based or tin-based bearing alloys. Lead-based bearing alloys are collectively referred to as babbitt alloys. Containing lanthanum 3% to 15%, copper 3% to 10%, some alloy varieties also contain 10% of lead. Tantalum and copper are used to increase the strength and hardness of the alloy. Its small friction coefficient, good toughness, thermal conductivity and corrosion resistance, mainly used to manufacture sliding bearings.
2 Lead-tin solder. Mainly tin-lead alloys, some tin solders also contain a small amount of germanium. Lead-containing 38.1% tin alloy is commonly known as solder, melting point is about 183°C, used for welding of components in electrical instrument industry, and sealing of automotive radiators, heat exchangers, food and beverage containers.
3 Lead-tin alloy coating. Using tin alloy's anti-corrosion properties, it is applied to the surface of various electrical components, both protective and decorative. Commonly used tin-lead and tin-nickel coatings.
4 Lead-based alloy (can be used to produce a variety of exquisite alloy jewelry, alloy arts and crafts, such as rings, necklaces, bracelets, earrings, brooches, buttons, tie clips, hats, craft ornaments, alloy photo frames, religious emblems, miniature Statues, souvenirs, etc.
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