Processing method of bimetal axial sleeve

Abstract

The invention relates to a method for processing a shaft sleeve, in particular to a method for processing a bimetal shaft sleeve. The first step of pre-processing a steel workpiece is as follows: the inner diameter of the steel workpiece is roughly processed, the outer wall face of the steel workpiece is horizontally placed on a rotary tool device and is remained horizontal, a heating tube is horizontally placed in the inner hole of the workpiece and is arranged in the position of the generatrix rotating downwards with a distance of 30-45 DEG to the extreme lower position of the generatrix, the workpiece is driven to rotate at a low speed by the tool device when the single side of the generatrix of the steel workpiece is heated to the temperature of 1000-1400 DEG C; the second step of copper casting is as follows: the solder is put into the inner hole of the steel workpiece when the single side of the heated generatrix in the first step is rotated to the extreme lower position, the molten copper liquid is pouring into the extreme lower position of the generatrix of the work piece, sealing blocks are arranged on two ends of the steel workpiece, the steel workpiece is rotated for solidifying the copper liquid, and the bimetal shaft sleeve can be obtained after water-cooling to a solidification temperature. The method has simple manufacture process and easy operation, and has the advantages of simple process, saving material and high product performance.

Description

Processing method of bimetal shaft sleeve 1. Technical field: The invention relates to a processing method of a shaft sleeve. 2. Background technology: The bimetallic bushing is a steel-copper bimetallic bushing with low carbon steel plate as the base material and sintered copper on the surface. The bimetallic bushing has the characteristics of strong bearing capacity and is suitable for balance bridge bushings of heavy vehicles, bulldozers Driven wheel, supporting wheel; excavator crank arm inner sleeve, metallurgical machinery, heavy industry lifting, mining machinery, is a kind of high-load low-speed motion bushing with wide application. At present, there are generally two processing methods for bimetallic bushings. One is rolling with sintered bimetallic plates. There are many processing techniques during processing. There is a seam on the bushing made by this method, which will affect the Mechanical properties; Another method is to cast a full-circle structure shaft ...

AI Technical Summary

Problems solved by technology

At present, there are generally two processing methods for bimetallic bushings. One is rolling with sintered bimetallic plates. There are many processing techniques during processing. There is a seam on the bushing made by this method, which will affect the Mechanical properties; Another method is to cast a full-circle structure shaft sleeve of copper alloy in a steel pipe. Some are cast with copper metal powder, and some are pressed in after processing copper and iron separately. The disadvantage is that the process is complicated and the products produced The thickness of the copper layer is more than 3mm, the material waste is large, and the manufacturing cost is high