Method and apparatus for producing materials of double metal shaft sleeve parts
A technology of bimetallic shaft and production method, which is applied in the production of bimetallic shaft sleeve part materials and its equipment field, can solve the problems of increasing the processing cycle and product production cost, affecting the mechanical properties of the shaft sleeve, and not being able to perform high-performance parts, etc., to achieve Facilitate automatic assembly, improve mechanical technical performance, and reduce manufacturing costs
Inactive Publication Date: 2008-04-30
北京中机精科自润轴承有限公司
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Problems solved by technology
Although the rolled shaft sleeve blank has been improved compared with the casting blank, it still uses more production equipment, long process flow, large floor space and high energy consumption in the manufacture of bimetallic materials. When rolled into a shaft sleeve blank, the material must also go through processes such as cutting, pre-bending, rounding, and shaping, which still cost materials, man-hours, and molds, and increase the processing cycle and product production costs. Moreover, cold rolling In terms of physical properties, the relative density of the copper alloy is ≤97%, which cannot be used as high-performance parts. In addition, there are seams at the laps of its rolling or buckle. This kind of bushing structure has poor maintenance accuracy. The above problems all affect the mechanical properties of the bushing
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[0017] specific implementation plan
[0018] Use the seamless steel pipe as the steel backing of the metal bushing, first select and transversely cut the seamless steel pipe according to the length and diameter of the metal bushing to be used as the steel backing of the metal bushing. Then, the inner wall of the steel backing is cleaned, and the cleaning solution used in the cleaning process is lye. Put the non-environmentally polluting lye with a concentration of 3% to 6% into the ultra-wave cleaning machine, and then put it into the steel backing to be cleaned for cleaning. Then put into the technological mandrel in the steel backing, put copper alloy powder into the design gap between the technological mandrel and the inner wall of the steel pipe, and then send it into a protective atmosphere together (the composition of the protective atmosphere is nitrogen 30%, Sintering is carried out in a sintering furnace with 70% hydrogen gas, the sintering temperature is 780-880°C, ...
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Abstract
A method for manufacturing bimetal axle sleeve includes such steps as providing seamless steel pipe as the back liner, cleaning, putting Cu-alloy powder in it, sintering for shaping, fixing it to a horizontal swinging rolling machine, swinging rolling for compacting the Cu-alloy powder, and sintering again. Said horizontal swinging rolling machine consists of main body, clamping box, slide rod, swinging body with reverse conic rod arranged in inclined mode, and worm gear.
Description
technical field [0001] The invention relates to a production method and special equipment for a part material of a bimetal shaft sleeve. Background technique [0002] The existing steel-copper alloy bimetallic bushings have two industrial batch-making processes: one is to cast copper alloy full-circle structural bushings in steel pipes. The rigidity and strength of the parts are better, but the production The process is complicated, the material waste is too large, and the manufacturing cost is high. [0003] The other is made of sintered bimetallic plates, with butt-rolled and buckle-shaped sleeves, and both types of rolled sleeves have a seam. Although the rolled shaft sleeve blank has been improved compared with the casting blank, it still uses more production equipment, long process flow, large floor space and high energy consumption in the manufacture of bimetallic materials. When rolled into a shaft sleeve blank, the material must also go through processes such as cu...
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IPC IPC(8): B22F7/04
Inventor 胡长安
Owner 北京中机精科自润轴承有限公司