Kalay-vismut qotishmasining uchta afzalligi

1. Qotishma yaxshi damping ko'rsatkichlariga ega.

Compared with aluminum alloy, steel and iron, it has a lower elastic modulus. Under the same stress conditions, tin-bismuth alloy can consume more deformation work, and has the functions of noise reduction and vibration reduction, and can withstand large shock and vibration. load, suitable for the preparation of seismic parts. Tin-bismuth alloy has a small specific gravity and is currently the lightest structural material. The specific strength of tin-bismuth alloy is significantly higher than that of aluminum alloy and steel, and only slightly lower than that of fiber-reinforced materials with the highest specific strength; the specific stiffness is comparable to that of aluminum alloy and steel, but far from It has good advantages over fiber reinforced materials.

2. Qotishma yaxshi issiqlik o'tkazuvchanligi, issiqlik barqarorligi, elektromagnit parazitlarga qarshi va ekranlash ko'rsatkichlariga ega.

Qalay-vismut qotishmasining quyish qobiliyati yaxshi, magniy va temirning reaktivligi juda past, temir tigel eritish uchun ishlatilishi mumkin, birlik quvvatiga eruvchan moddaning entalpiyasi past, uning quyish tezligi yuqori bo'lishi mumkin. alyuminiy, to'qimalarining quyish va ishlov berish aniqligi yuqori. Qalay-vismut qotishmasidan quyma devorning minimal qalinligi. Qalay-vismut qotishmasi yuqori tezlikda qayta ishlanishi mumkin, yuqori ishlab chiqarish samaradorligiga ega va qolipda tez qotib qoladi.

3. Qotishmaning o'lchovli barqarorligi yaxshi.

The shrinkage rate is stable, and the dimensional accuracy of castings and finished products is high. Except for magnesium-aluminum-zinc alloys, most tin-bismuth alloys have basically zero dimensional changes due to phase transformation during heat treatment and long-term use. Excellent cutting performance, its cutting speed is much higher than other metals. When cutting tin-bismuth alloy, the tool consumption is low, and the cutting power is small. The power consumption ratio of tin-bismuth alloy, aluminum alloy, cast iron and low alloy steel cutting the same parts is a fixed value. The tin-bismuth alloy does not need grinding and polishing after cutting, and a machined surface with very low roughness can be obtained without cutting fluid. In addition, when the tin-bismuth alloy is impacted or rubbed, the surface does not produce sparks, which is conducive to production safety.