Processed and Cast Babbitt Alloy Bushings

Henan Huachuang Metal Materials Trading Co., Ltd. processes and casts Babbitt alloy bushings
Babbitt alloy sealing bushings. Bushings are cylindrical mechanical parts fitted onto rotating shafts and are a component of plain bearings. Generally, bushings are interference-fitted with the bearing housing and clearance-fitted with the shaft. Due to its relatively low strength, non-ferrous bearing alloy Babbitt alloy (tin-based white metal) is typically cast onto a steel shell (steel backing) to produce bimetallic bushings, bearing liners, and bearing shells (Babbitt alloy plain bearings). The steel backing material enhances the strength of the alloy. Within its range, the thinner the alloy layer, the greater the load-bearing capacity.

To ensure a strong bond between the bearing alloy Babbitt and the steel shell, the steel backing must be thoroughly cleaned and tinned before casting. The process is as follows: alkaline cleaning; water rinsing; acid cleaning; water rinsing; boiling water rinsing; applying protective agent; applying flux, tinning. Simultaneously, the mold is preheated, the bearing alloy and Babbitt alloy are melted, and the molten Babbitt alloy is poured.