Phosphor bronze bimetal plate for making bush and process for making same

A production process, phosphor bronze technology, which is applied in the field of engine bearing materials, can solve the problem of volatilization of the alloy layer and steel back, and achieve the effect of improving the running quality of the car, being conducive to environmental protection, and good wear resistance

Inactive Publication Date: 2005-09-07
HUNAN FLYDISC NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The alloy composition of this material contains relatively high phosphorus, and the usual sintering process cannot solve the problems of the solidity of the alloy layer and the steel back and the volatilization of phosphorus during the sintering process

Method used

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  • Phosphor bronze bimetal plate for making bush and process for making same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: see accompanying drawing.

[0016] 1. Steel plate preparation: choose St 37-2G Brand high-quality carbon structural steel plate, cut the large steel plate into strips of a certain geometric size, and carry out surface treatment for degreasing and derusting;

[0017] 2. Re-rolling and leveling of the steel plate, re-rolling the steel plate to the required thickness and leveling;

[0018] 3. Spread the powder and first burn, the chemical composition is by weight: tin (Sn) 5.5%, phosphorus (P) 0.2%, zinc (Zn) 0.3%, nickel (Ni) 0.2%, iron (Fe) 0.05%, lead Alloy powder with (Pb) 0.2%, copper (Cu) 93.05%, and total impurities 0.5% is evenly spread on the leveled steel plate, and sent into a crawler-type continuous sintering furnace with a temperature of 870°C, under gas protection Carry out initial firing to sinter the Cu-Sn-P alloy powder on the steel plate to form an alloy layer;

[0019] 4. Initial rolling leveling, cold rolling the material after initial ...

Embodiment 2

[0023] Choose St. 37-2G The high-quality carbon structural steel plate of the brand is treated with oil removal, rust removal and copper plating surface treatment. The chemical composition is as follows by weight: tin (Sn) 7%, phosphorus (P) 0.3%, zinc (Zn) 0.05%, copper (Cu ) is 91.3%, and the rest is impurities. The alloy powder is evenly spread on the leveled steel plate, and sent to the crawler type continuous sintering furnace with a temperature of 860 °C for initial firing, and the initially rolled leveled plate is at a temperature of 890 °C Re-burn down. All the other production techniques are the same as example 1.

Embodiment 3

[0025] Choose St. 12 Brand of high-quality carbon structural steel plate, the chemical composition by weight is: tin (Sn) 7%, phosphorus (P) 0.1%, zinc (Zn) 0.8%, copper (Cu) 92.35%, the rest is alloy powder of impurities Spread evenly on the leveled steel plate, and send it into the crawler type continuous sintering furnace with a temperature of 870°C for initial firing, and refire the initially rolled and leveled plate at a temperature of 890°C. All the other production techniques are the same as example 1.

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Abstract

The invention discloses a phos-bronze bimetal sheet used to make brass. The surface of steel sheet is adglutinated with alloying layer, of which component comprises 5.5`7wt% of tin, 0.1~0.4wt% of phosphor, 0.05~0.8wt% of 0.05~0.8wt% of zine and 91.3~94wt% of copper. Flow process comprises steel sheet degreasing derusting and coppering or preprocessing without coppering (roller leveling, bedding alloy powder, first clinkering(800~900 Deg. C), roll flattening, second clinkering (840~920 Deg. C)and finish roll flattening). Phos-bronze bimetal sheet used to make brass has properties of high-intensity and fine abradability to meet the need of automobile engine of high power and high speed. Further more, the invention in faver of environmental conservation and improving the operation quality of car.

Description

technical field [0001] The present invention relates to a kind of engine bearing bush material, especially relate to a kind of bimetallic bearing bush material with Cu-Sn-P as alloy, it is mainly used in making the bearing bush, bushing etc. in the automobile engine of high power, high speed, the present invention It also relates to the production process of the phosphor bronze bimetal plate used for making the bearing bush. Background technique [0002] With the advancement of science and technology and the increasing number of automobiles, the replacement speed of automobile bearing materials is accelerating, and the environmental protection performance of automobiles has been widely concerned. High-power, high-speed automotive engines often use copper-lead bimetallic bearing materials (CuPb10Sn10), which are widely used due to their mature manufacturing processes. However, the lead content in the copper-lead alloy composition is generally 10%-30%, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/16C22C9/02
Inventor 李杰陈小平蒋文武
Owner HUNAN FLYDISC NEW MATERIAL
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