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Method for preparing mould punching ejector rod

A stamping top and mold technology, applied in mechanical equipment, other manufacturing equipment/tools, turbines, etc., can solve the problems of time-consuming and labor-intensive processing, insufficient strength, waste of materials, etc., to simplify the process of process operation, increase strength, and facilitate batch operation Effect

Inactive Publication Date: 2013-02-06
怀远县尚冠再生资源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Die stamping ejector pins are generally processed by turning, but there are usually problems such as insufficient strength, easy damage, time-consuming and labor-intensive processing, high cost, and waste of materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] A method for preparing a die stamping ejector pin, characterized in that it comprises the following steps:

[0017] (1) Design and manufacture powder metallurgy stamping dies for stamping ejector pins according to the requirements of the drawings;

[0018] (2), the weight percentage of each component of preparation raw material is:

[0019] Scrap steel powder 15, electrolytic nickel 1, martensitic valve steel powder 4, manganese sulfide powder 1.8, molybdenum disulfide powder 1.3, tungsten powder 0.8, cobalt powder 0.3, niobium 0.8, tungsten 1.8, barium 0.5, silicon 0.7, aluminum 0.8, Graphite 1.0, less than 45 micron stearic acid 2.0, zinc stearate 2, polyamide wax micropowder 1.5, polyamide wax micropowder 1.0, tetraisopropyl bis(dioctylphosphite acyloxy) titanate 2, aniline Methyltriethoxysilane 1, the rest is reduced iron powder.

[0020] (3) First, scrap steel powder, reduced iron powder, polyamide wax micropowder, tetraisopropylbis(dioctylphosphite acyloxy) tita...

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PUM

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Abstract

The invention discloses a method for preparing a mould punching ejector rod. The method comprises the following steps of: dosing, punching, sintering copper infiltration, heat treatment, blackening treatment and the like. Formulation major ingredients comprise scrap steel powder and electrolytic nickel. A scientific powder metallurgy production process is adopted, and the mould punching ejector rod is formed at one time, so that the mould punching ejector rod is material-saving, energy-saving and time-saving and easy for batch production and batch operation, simplifies an operation process, can meet a requirement on using strength, and improves the production efficiency; the density can reach over 7.5g / cm<3>; and for the product subjected to blackening treatment, the hardness of the surface of the product is improved, and the strength of the product is increased.

Description

technical field [0001] The invention relates to the technical field of dies, in particular to a method for preparing die stamping ejector pins. Background technique [0002] Die stamping ejector pins are generally processed by turning, but there are usually problems such as insufficient strength, easy damage, time-consuming and labor-intensive processing, high cost, and waste of materials. Because powder metallurgy technology can greatly save materials, the production technology requirements are not high, and it can be produced in large quantities, it is welcomed by enterprises. Contents of the invention [0003] The invention provides a method for preparing a mold stamping ejector pin, which is formed at one time, has good overall performance, is easy to produce in batches, is relatively low in cost, and meets requirements in performance. [0004] Technical scheme of the present invention is: [0005] A method for preparing a die stamping ejector pin, characterized in t...

Claims

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Application Information

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IPC IPC(8): B22F3/16B22F5/00B22F3/24C22C38/12C23C8/18
Inventor 刘春芳
Owner 怀远县尚冠再生资源有限公司