Manufacturing method for copper alloy part

A manufacturing method, copper alloy technology, applied in the field of copper alloy parts manufacturing, can solve the problems of long processing cycle, complex forming, high processing cost, etc.

Inactive Publication Date: 2016-11-23
洛阳新巨能高热技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for manufacturing copper alloy parts, which solves the shortcomings of traditional preparation methods such as casting, powder metallurgy molding, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A method for manufacturing a copper alloy part in an embodiment of the present invention comprises the following steps:

[0014] 1. Mixing: Weigh copper alloy powder and organic binder according to a certain ratio (organic binder is paraffin wax, high-density polyethylene, stearic acid, EVA resin, one or more mixed copper alloy powder accounts for 55% of the total volume, the organic binder accounts for 45% of the total volume), according to a certain order, add in the kneader, heat and knead for a period of time;

[0015] 2. Granulation: Use extrusion device to extrude the feed material into strips and strips, and then granulate through the pulverizer;

[0016] 3. Injection molding: use the injection machine to inject the granulated feed into copper alloy injection billets of various shapes;

[0017] 4. Degreasing: first remove part of the binder in an organic solvent, the organic solvent is one or a mixture of dichloromethane, trichloroethylene, and chloroform, and t...

Embodiment 2

[0020] A method for manufacturing a copper alloy part in an embodiment of the present invention comprises the following steps:

[0021] 1. Mixing: Weigh copper alloy powder and organic binder according to a certain ratio (organic binder is paraffin wax, high-density polyethylene, stearic acid, EVA resin, one or more mixed copper alloy powder accounts for 60% of the total volume, the organic binder accounts for 40% of the total volume), according to a certain order, add in the kneader, heat and knead for a period of time;

[0022] 2. Granulation: Use extrusion device to extrude the feed material into strips and strips, and then granulate through the pulverizer;

[0023] 3. Injection molding: use the injection machine to inject the granulated feed into copper alloy injection billets of various shapes;

[0024] 4. Degreasing: first remove part of the binder in an organic solvent, the organic solvent is one or a mixture of dichloromethane, trichloroethylene, and chloroform, and t...

Embodiment 3

[0027] A method for manufacturing a copper alloy part in an embodiment of the present invention comprises the following steps:

[0028] 1. Mixing: Weigh copper alloy powder and organic binder according to a certain ratio (organic binder is paraffin wax, high-density polyethylene, stearic acid, EVA resin, one or more mixed copper alloy powder accounts for 57% of the total volume, the organic binder accounts for 43% of the total volume), according to a certain order, add in the kneader, heat and mix for a period of time;

[0029] 2. Granulation: Use extrusion device to extrude the feed material into strips and strips, and then granulate through the pulverizer;

[0030] 3. Injection molding: use the injection machine to inject the granulated feed into copper alloy injection billets of various shapes;

[0031] 4. Degreasing: first remove part of the binder in an organic solvent, the organic solvent is one or a mixture of dichloromethane, trichloroethylene, and chloroform, and the...

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Abstract

The invention relates to a manufacturing method for a copper alloy part. The manufacturing method comprises the following steps that firstly, mixing is conducted, copper alloy powder and a bonding agent are mixed, and injection feed is manufactured; secondly, injection forming is conducted, and the feed is subjected to injection forming through an injection machine; thirdly, degreasing is conducted and includes solvent degreasing and thermal degreasing; fourthly, sintering is conducted, and sintering densification is conducted in a sintering furnace; and fifthly, sintering post treatment is conducted, and a finished product is obtained through machining shaping. The manufacturing method overcomes the defects that in traditional preparing methods such as casting and powder metallurgy die pressing, the machining period is long, parts with the complex shapes are hard to form, size precision cannot be guaranteed, and the machining cost is high, special-shaped products with the complex appearances and the small sizes and the special-shaped parts with the complex shapes can be produced on a large scale, and the manufacturing method is suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of metal materials, in particular to a method for manufacturing copper alloy parts. Background technique [0002] Injection molding technology is developed from the injection molding technology of polymer materials. It is formed by virtue of the characteristics of high molecular polymer melting at high temperature and solidification at low temperature. The formed green body removes high molecular polymer and is sintered at high temperature The final product can be obtained. This method can manufacture products with various complex shapes, and the products have uniform density, high geometric dimension accuracy, and are easy to scale and automate production. [0003] Copper and copper alloys have good electrical and thermal conductivity, and have been widely used in electrical and electronic industries for a long time. With the rapid development of the electronics industry, especially the rise of the microelectronics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/22
Inventor 丁超郭帅高学昆
Owner 洛阳新巨能高热技术有限公司
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