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
CN102965581AInactive 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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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
安徽蓝博旺机械集团精密液压件有限责任公司
Publication Date
2013-03-13
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

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.
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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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