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Preparation method of cylinder body of oil feed pump

A technology for oil supply pumps and cylinders, which is applied in the field of preparation of oil supply pump cylinders, can solve the problems of low strength and loose internal materials, and achieve the effect of high strength and good machining performance

Inactive Publication Date: 2013-03-13
安徽蓝博旺机械集团精密液压件有限责任公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0002] At present, the cylinder body of the oil supply pump adopts casting technology, and then it is processed by machining. This type of cylinder body has technical problems of low strength and loose internal materials.

Method used

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Examples

Experimental program
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Embodiment Construction

[0015] The technical solutions of the present invention are further specifically described below through examples.

[0016] A method for preparing a cylinder block of an oil supply pump, comprising the following steps:

[0017] a. Making molten metal, the weight percentage of chemical components in the molten metal is: 2.086%≤C≤2.150%, trace ≤Si≤1.40%, trace ≤Mn≤1.30%, trace ≤P≤0.033%, trace Amount ≤ S ≤ 0.0260%, Li 0.11-0.22%, 11.50% ≤ Cr ≤ 13.50%, trace ≤ B ≤ 0.0018%, the balance is iron and unavoidable impurities;

[0018] b. Melting into molten metal to detect the content of the above-mentioned chemical components, and then adding corresponding deficient elemental metals to the above-mentioned molten metal, mixing evenly to form a pouring liquid;

[0019] c 1. Pouring pouring liquid into the sand mold through the gate, cooling and solidifying, steam treatment after taking out to obtain the cylinder block blank, the steam treatment is water atomization steam treatment, th...

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PUM

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Abstract

The invention discloses a preparation method of a cylinder body of an oil feed pump. The method comprises steps of producing metal melt which comprises the following chemical components by weight percent: 0.086 % <= C <= 0.150 %, trace <= Si <= 1.40 %, trace <= Mn <= 1.30 % trace <= P <= 0.033 %, trace <= S <= 0.0260 %, 0.11-0.22 % of Li, 11.50 % <= Cr <= 13.50 %, trace <= B <= 0.0018 %, and the balance being iron and unavoidable impurities. The preparation method of the cylinder body and cover of the oil feed pump provided by the invention is simple in molding technology, low in manufacture cost and high in product strength.

Description

technical field [0001] The invention relates to a technology for manufacturing an oil cylinder body, in particular to a method for preparing an oil supply pump cylinder body. Background technique [0002] At present, the oil supply pump cylinder body adopts casting process, and then it is machined. This type of cylinder body has the technical problems of low strength and loose internal materials. Contents of the invention [0003] The object of the present invention is to propose a method for preparing an oil cylinder block and head with simple molding process, low manufacturing cost, high material utilization rate and high product strength. [0004] The object of the present invention is achieved through the following technical solutions: [0005] A method for preparing a cylinder block of an oil supply pump, comprising the following steps: [0006] a. Making molten metal, the weight percentage of chemical components in the molten metal is: 2.086%≤C≤4.150%, trace ≤Si≤1....

Claims

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Application Information

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IPC IPC(8): C22C38/36C23F17/00F16J10/00
Inventor 吕青堂陈栋李文宇
Owner 安徽蓝博旺机械集团精密液压件有限责任公司
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