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High-strength plunger coupling composite

A technology of plunger couplers and composite materials, applied in the field of high-strength plunger coupler composite materials, can solve the problems of low strength of plunger couplers, inability to achieve wear resistance, corrosion resistance, etc. The effect of high density and long service life

Inactive Publication Date: 2020-02-14
仪征威业油泵油嘴有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The manufacturing materials used in the plunger couples in the prior art cannot achieve the effect of wear resistance and corrosion resistance, and the strength of the plunger couples made is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A high-strength plunger coupler composite material, prepared from the following components by weight: 12-25 parts of copper powder, 5-9 parts of chromium powder, 3-5 parts of silicon powder, 5-10 parts of cobalt, 3-6 parts of chromium carbide, 2-6 parts of graphite powder, 3-7 parts of manganese powder, 30-60 parts of iron powder, 10-20 parts of tungsten carbide, 5-10 parts of boron, 10-18 parts of aluminum powder, magnesium alloy 10-20 servings.

Embodiment 2

[0013] A high-strength plunger coupling composite material, which is prepared from the following components by weight: 12 parts of copper powder, 5 parts of chromium powder, 3 parts of silicon powder, 5 parts of cobalt, 3 parts of chromium carbide, and 2 parts of graphite powder 3 parts of manganese powder, 30 parts of iron powder, 10 parts of tungsten carbide, 5 parts of boron, 10 parts of aluminum powder, and 10 parts of magnesium alloy.

Embodiment 3

[0015] A high-strength plunger coupler composite material, prepared from the following components by weight: 25 parts of copper powder, 9 parts of chromium powder, 5 parts of silicon powder, 10 parts of cobalt, 6 parts of chromium carbide, and 6 parts of graphite powder parts, manganese powder 7 parts, iron powder 60 parts, tungsten carbide 20 parts, boron 10 parts, aluminum powder 18 parts, magnesium alloy 20 parts.

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PUM

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Abstract

The invention discloses a high-strength plunger coupling composite which is prepared from the following components in parts by weight: 12-25 parts of copper powder, 5-9 parts of chromium powder, 3-5 parts of silicon powder, 5-10 parts of cobalt, 3-6 parts of chromium carbide, 2-6 parts of graphite powder, 3-7 parts of manganese powder, 30-60 parts of iron powder, 10-20 parts of tungsten carbide, 5-10 parts of boron, 10-18 parts of aluminum powder and 10-20 parts of magnesium alloy. A prepared plunger coupling piece is good in mechanical performance, long in service life and good in corrosion resistance.

Description

technical field [0001] The invention relates to a composite material of a high-strength plunger pair. Background technique [0002] The material composition of powder metallurgy structural parts is not limited by smelting. It can be added with alloy composition or other structural components, and can be adjusted according to the requirements in a considerable range, so that the mechanical properties can match the steel parts. Effect. [0003] The plunger coupler is the fuel injection plunger of the high-pressure oil pump of the diesel engine. Due to the precise fit of the plunger coupler and the high-speed movement of the plunger, it is possible to pressurize the fuel. The materials used for the plunger couple in the prior art cannot achieve the effect of wear resistance and corrosion resistance, and the strength of the plunger couple made is not high. Contents of the invention [0004] The object of the present invention is to provide a high-strength composite material ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/02C22C32/00
CPCC22C30/02C22C32/0047
Inventor 李进
Owner 仪征威业油泵油嘴有限公司