Application Of Woods Metal 158F 70C Alloy

158F 70C alloy（also called Wood’s Metal）is composed of bismuth, lead, tin, and cadmium, and can be made into low melting point eutectic alloy and non-eutectic alloy through different proportions. Wood Metal is a low melting point alloy that is widely used in industry. It can be used as solder for welding or processing various accessories for temperature control safety devices of machinery and equipment.

The following are some of its common uses:

1.Processing customized fusible components or solders for electrical safety devices, automatic signal equipment, etc. Such as fusible links used for fire damper, fireproof steel door, rolling shutter controller, self-lowering device, release device

2. As a filler used for bending tube (metal bending filler alloy).

Melt Wood’s Alloy to liquid and then fill in the metal tube, after the Wood’s metal is cooled to solid, the metal tube is folded into the desired bend, the arc is beautiful and has no defects, and then the bent tube is heated to recover the Wood’s metal. Reusable, more economical.

3. As mold alloy used for industry

Low melting point mold alloys are used to make cold stamping dies for thin plates, which can press copper, aluminum, steel, stainless steel and other plates, and the thickness of the steel plate can reach 3 mm. Used for stretching, bending and forming of thin plates. Use low-melting alloy molds, no need for mold steel, simple and rapid mold formation; low mold cost and fast update; molds do not need to be adjusted or processed; molds can be remelted when they are used up, and alloys can be used repeatedly; Greatly reduce the mold stacking space.

Foreign countries attach great importance to the research and use of low melting point die alloys. Many large aircraft and automobile companies have experts engaged in this scientific research work.

Low melting point mold alloys should have the following properties: low melting point, easy to melt, convenient mold making; high strength of the alloy, long mold life; good flow properties, strong filling ability after melting the alloy, clear mold formation; low expansion and contraction rate of the alloy, capable Ensure the accuracy of the mold; the alloy does not adhere to the standard sample, and the mold part is easy; the alloy is non-toxic and does not pollute the environment.