Davis bronze-steel composite bimetallic bearing material and manufacturing method thereof

A composite bimetal and bearing material technology, applied in other manufacturing equipment/tools, manufacturing tools, bearing components, etc., can solve the problem of low resistance to stress corrosion and chemical corrosion, low strength of copper-lead alloy bearing materials, mechanical Poor bearing capacity and other problems, to achieve the effect of low friction coefficient, high strength, good corrosion cracking resistance and stress corrosion cracking resistance

Active Publication Date: 2008-11-12
SHANGHAI HEWEI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the problems of low strength and poor mechanical bearing capacity of copper-lead alloy bearing materials used in high-power and high-load engines, and makes up for the low stress corrosion resistance and chemical corrosion resistance of the

Method used

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Examples

Experimental program
Comparison scheme
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Example Embodiment

[0023] Example 1

[0024] 1. The production material specifications are: nickel bronze-steel composite bimetal bearing material plate with a total thickness of 2.5×the alloy width of 120mm and an alloy thickness of 0.5mm.

[0025] 2. Steel plate preparation: select high-quality carbon steel plate of SPCC brand, cut the large steel plate into the designed 2.5×126×625mm, perform degreasing and rust removal, and roll it to 2.0±0.01×126×780mm, and adjust Flat, flatness ≤0.5mm.

[0026] 3. The alloy powder is prepared. The nickel-bronze alloy powder is prepared by high-pressure water atomization. The chemical composition of the powder is calculated by weight percentage, nickel (Ni) 1.0%, tin (Sn) 8.0%, lead (Pb) 0.01%, Zinc (Zn) 0.2%, phosphorus (P) 0.1%, total impurities 0.5%, the balance is copper

[0027] 4. According to the designed finished product as the thickness of the alloy layer of 0.5mm, the powder thickness is 0.85mm, and the alloy powder is evenly spread on the pretreated ...

Example Embodiment

[0031] Example 2

[0032] The production material specifications are: nickel bronze-steel composite bimetal bearing material plate with a total thickness of 3.5×the alloy width of 100mm and the alloy thickness of 0.80mm. The high-quality carbon steel structure steel plate of St37-2G is selected and the steel plate is cut into width For strips of 106mm and 600mm in length, the surface should be degreasing and derusting, and the thickness of 2.70mm should be rolled and leveled. The alloy powder is prepared. The nickel-bronze alloy powder is prepared by high-pressure water atomization. The chemical composition of the powder is calculated by weight percentage, nickel (Ni) 9.0%, tin (Sn) 6.0%, lead (Pb) 0.01%, zinc ( Zn) 0.2%, total impurities 0.5%, and the balance of copper alloy powder is evenly spread on the processed steel plate and placed in a sintering furnace with a reducing protective atmosphere for sintering. The rest of the production process is the same. example 1.

Example Embodiment

[0033] Example 3

[0034]The production material specifications are: nickel bronze-steel composite bimetallic bearing material plate with total thickness of 5.0 × alloy width of 140mm, alloy thickness of 1.5mm, and high-quality carbon steel structural steel plate of SS400 grade. The steel plate is cut into width 146mm and Strips with a length of 650mm are degreasing and derusting on the surface, rolled to a thickness of 3.50mm, and leveled. The alloy powder is prepared. The nickel-bronze alloy powder is prepared by high-pressure water atomization. The chemical composition of the powder is calculated by weight percentage, nickel (Ni) 15.0%, tin (Sn) 8.0%, lead (Pb) 0.01%, zinc ( Zn) 0.5%, total impurities 0.5%, the remainder of copper alloy powder is evenly spread on the processed steel plate, and put into the sintering furnace in a reducing protective atmosphere for sintering, the rest of the production process is the same as the embodiment 1.

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Abstract

The invention provides a nickel bronze-steel compound double metal bearing material and a manufacture method thereof, in particular to a nickel bronze-steel compound double metal bearing material and a manufacture method thereof of a nickel bronze alloy sintered on the surface of a low carbon high grade plain carbon steel material. The nickel bronze-steel compound double metal bearing material of the invention is a layered structure; a basic layer is the low carbon high grade plain carbon steel material; a surface layer is the nickel bronze alloy; the nickel bronze alloy is sintered on the surface of the low carbon high grade plain carbon steel material. The manufacture method of the nickel bronze-steel compound double metal bearing material of the invention relates to a manufacture method for sintering the nickel bronze alloy on the surface of the low carbon high grade plain carbon steel material to form the nickel bronze-steel compound double metal bearing material by adopting the principle of a powder metallurgy sintering method.

Description

technical field [0001] The present invention relates to a nickel bronze-steel composite bimetallic bearing material and a manufacturing method thereof, in particular to a nickel bronze-steel composite bimetallic bearing material in which a nickel bronze alloy is sintered on the surface of a low-carbon high-quality carbon steel material and its manufacture method. Background technique [0002] With the advancement of automobile technology, higher requirements are put forward for automobile bearing materials, especially for copper alloy bearing materials used in high-power and high-load engines. For example, bearing materials are required to contain no harmful components and meet environmental protection requirements. ; It must have high strength to meet the requirements of high-power and extra-high-power engines. It is also required that the bearing material can adapt to different environments and working conditions, and has the ability to resist stress corrosion and chemical...

Claims

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Application Information

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IPC IPC(8): B32B15/01F16C33/00C22C9/00C22C1/04B23P23/00
Inventor 何光志周剑平陈进添温世达
Owner SHANGHAI HEWEI IND
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