Processing method for sintering bimetallic lining

A processing method and bi-metal technology, applied in metal processing equipment, abrasives, manufacturing tools, etc., can solve the problems of waste of non-ferrous metal resources, high labor intensity, and high product cost, so as to improve labor production efficiency, reduce labor intensity, and simplify The effect of the production process

Inactive Publication Date: 2010-02-17
SHIYAN GANGRUI IND & TRADE
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cast and machined copper sleeve alloy bushings have high labor intensity, high energy consumption, poor production environment conditions in the production process, and large amount of machining cutting, which is a waste of non-ferrous metal resources. The mechanical strength and heat dissipation performance are poor, sometimes Stuck mating shaft and large coefficient of friction and wear, short service life, high product cost, etc.

Method used

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  • Processing method for sintering bimetallic lining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] First of all, surface treatment is carried out on the cold-rolled and hot-rolled sheet, and the surface of the sheet is treated with 180-200 mesh quartz sand using a sandblasting machine; then, the surface of the sheet is evenly paved with Babbitt alloy colored Metal powder material, the babbitt alloy non-ferrous metal powder material is 160 order irregular spherical powder containing 85% bronze and 15% pure tin; then by connecting liquid ammonia decomposition equipment, liquid ammonia is decomposed into 73% hydrogen and 27% nitrogen, and then mix the two gases to obtain a hydrogen-nitrogen mixed gas, then introduce the decomposed hydrogen-nitrogen mixed gas into the sintering furnace tube for combustion, and perform gas-protected sintering on the sheet metal lined with metal powder to obtain a bimetal sheet; Roll the sintered bimetal sheet through a precision rolling mill to make its surface roughness reach Ra3.2μm~Ra0.8μm (that is, the smoothness reaches 6~8 grades), a...

Embodiment 2

[0020] First of all, surface treatment is carried out on the cold-rolled and hot-rolled sheet, and the surface of the sheet is treated with 180-200 mesh quartz sand using a sandblasting machine; then, the surface of the sheet is evenly lined with a ternary alloy non-ferrous metal by a powder spreading device Powder material, the ternary alloy non-ferrous metal powder material is a 160 mesh irregular ball powder containing 70% bronze, 20% zinc, and 10% lead; then by connecting liquid ammonia decomposition equipment, the liquid ammonia is decomposed into 73 % hydrogen and 27% nitrogen, and then mix the two gases to obtain a hydrogen-nitrogen mixed gas, and then introduce the decomposed hydrogen-nitrogen mixed gas into the sintering furnace tube for combustion, and perform gas-protected sintering on the sheet metal lined with metal powder to obtain a bimetallic Sheet material: Roll the sintered bimetallic sheet material through a precision rolling mill to make its surface roughnes...

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Abstract

The invention provides a processing method for sintering a bimetallic lining. The method comprises the following steps: firstly, carrying out surface treatment on cold rolling and hot rolling plates;secondly, uniformly spreading nonferrous metal powder on the surfaces of the plates through a powder spreading device; thirdly, carrying out gas shielded sintering on the plates with the spread metalpowder; fourthly, rolling the sintered bimetallic plates by a precise rolling mill, and then reeling and welding for molding. The processing method for sintering the bimetallic lining simplifies the production process, greatly lightens the labor intensity of workers in a production process, has no environmental pollution and effectively improves the labor production efficiency and the mechanical performance of products simultaneously. Moreover, when in use, a product of the method has self-lubricating function without adding lubricating oil, and can be suitable for rotating speed with a largeload and hostile working conditions.

Description

technical field [0001] The invention relates to a processing technology of a bush, in particular to a processing method of a sintered bimetal material bush. Background technique [0002] The traditional casting copper bushing and casting alloy bushing are cast into blanks by the casting technology of casting bronze bushing and non-ferrous metal alloy bushing, and then made into products through machining process, which are used in the parts of transmission shafts with low speed and small load. Cast and machined copper sleeve alloy bushings have high labor intensity, high energy consumption, poor production environment conditions in the production process, and large amount of machining cutting, which is a waste of non-ferrous metal resources. The mechanical strength and heat dissipation performance are poor, sometimes Jammed paired shafts, large coefficient of friction and wear, short service life, high product cost, etc. Contents of the invention [0003] The invention pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F7/04B24C3/14
Inventor 王荣达王化泽王珍
Owner SHIYAN GANGRUI IND & TRADE
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