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Valve body manufacturing method

A manufacturing method and valve body technology, which are applied in the field of valve body manufacturing, can solve the problems that alloys are prone to galvanic cell effect and easy to rust, and achieve the effects of avoiding galvanic cell effect, slowing down corrosion and improving wear resistance.

Inactive Publication Date: 2017-07-07
慈溪市华盛低压电器厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages that the existing copper valve body is easy to rust and the alloy is easy to produce the galvanic effect, the invention provides a manufacturing method of the valve body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A valve body manufacturing method, comprising the following steps:

[0013] 1) Melt the copper in a closed environment and mix it with carbon, and make it fully mixed;

[0014] 2) Inject the material in step 1 into the cavity under pressure to form a "convex" valve body;

[0015] 3) Slowly cool down the workpiece in step 2 and take it out;

[0016] 4) Electroplating the workpiece in step 3;

[0017] 5) Grinding the inner wall of the workpiece in step 4;

[0018] 6) Thread both ends of the workpiece in step 5.

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PUM

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Abstract

A method for manufacturing a valve body, comprising the following steps: 1) Melting copper in a closed environment, adding carbon and mixing them thoroughly; 2) injecting the material in step 1 into a mold cavity under pressure to form a "convex" shape Valve body; 3) Slowly cool down the workpiece in step 2 and take it out; 4) Electroplate the workpiece in step 3; 5) Grind the inner wall of the workpiece in step 4; 6) Turn both ends of the workpiece in step 5 out thread. The invention adopts the method of adding carbon to improve the wear resistance of the inner surface of the valve body, slow down the corrosion of the copper valve body, and avoid the generation of the original battery effect.

Description

technical field [0001] The invention relates to a method for manufacturing a valve body. Background technique [0002] As we all know, copper valves are prone to rust and produce patina. In order to ensure the shelf life of copper, copper is mixed with alloys to prevent rust. However, alloy metals are prone to galvanic effect and accelerate corrosion. Contents of the invention [0003] In order to overcome the disadvantages that the existing copper valve body is easy to rust and the alloy is easy to produce galvanic effect, the invention provides a manufacturing method of the valve body. [0004] The technical solution for solving the technical problem of the present invention is: a valve body manufacturing method, comprising the following steps: [0005] 1) Melt the copper in a closed environment and mix it with carbon, and make it fully mixed; [0006] 2) Inject the material in step 1 into the cavity under pressure to form a "convex" valve body; [0007] 3) Slowly co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D18/02C22C9/00B23P15/00
CPCB22D18/02B23P15/001C22C9/00
Inventor 张华江
Owner 慈溪市华盛低压电器厂