Classification Of Bismuth Alloys
Nov 15, 2021
Tin-bismuth alloy
Tin-bismuth alloy is an environmentally friendly alloy. At room temperature, it is solid and silver-white with a melting point of 138 °C, a solid-liquid volume shrinkage rate of 0.051%, and strong permeability. The low melting point tin-bismuth mold alloy is used to make thin plate cold stamping molds, which can press copper, aluminum, steel, stainless steel and other plates, and the thickness of the steel plate can reach. For drawing, bending and forming of thin sheets. The use of low melting point alloy molds does not require mold steel, and the film formation is simple and fast; the mold cost is low and the update is fast; the mold does not need to be adjusted, and does not need to be processed; the mold can be remelted after use, and the alloy can be used repeatedly; Greatly reduce the mold stacking space.
Lead-bismuth alloy
Lead-bismuth alloys are also known as low-temperature alloys, or low-melting-point alloys, or fusible alloys. It is mainly composed of lead and bismuth with a lower melting point, and some other metals are also added to adjust the melting point of the alloy. Lead-bismuth alloys can be used as coolants for reactors. Although the melting point of lead-bismuth eutectic alloys (LBE) is slightly higher than that of sodium, its chemical activity is weaker. Comprehensive performance evaluation and practical engineering applications (including use in mobile nuclear power units) All have proved that it is completely feasible to be used as a coolant for the next generation of new fast reactors.
Bismuth aluminum alloy
The alloy prepared with bismuth and aluminum is used as the filler for the curved thin-walled tube, which can keep the inner wall of the tube smooth and clean, and the filler can be used repeatedly for many times.
A series of low melting point alloys composed of bismuth and cadmium, indium, cadmium and silver are used to make electrical appliances, fuses, automatic device signalers, etc. Replace lead bullets with bismuth-tin alloy bullets.
