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Powder metallurgy component and production method of powder metallurgy component with through hole

A powder metallurgy part and powder metallurgy technology, applied in the field of powder metallurgy parts, can solve problems such as insufficient wear resistance, shortened service life of bevel gears, and complicated manufacturing process, so as to improve material utilization rate, ensure safety and reliability, and reduce manufacturing costs. cost effect

Active Publication Date: 2014-09-10
江苏宏创精密制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, for bevel gears with mounting through holes, most of them still use traditional machining methods, which not only have complicated manufacturing procedures and high costs; moreover, the obtained finished products have low hardness and insufficient wear resistance, which greatly shortens the bevel gear service life

Method used

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  • Powder metallurgy component and production method of powder metallurgy component with through hole
  • Powder metallurgy component and production method of powder metallurgy component with through hole
  • Powder metallurgy component and production method of powder metallurgy component with through hole

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Water atomized iron powder 100g, copper powder 1.8g, graphite powder 0.5g, nickel powder 2.0g, molybdenum powder 0.4g, micro powder wax 0.5g, calcium fluoride 0.5g.

Embodiment 2

[0024] Water atomized iron powder 100g, copper powder 2g, graphite powder 0.75g, nickel powder 2.5g, molybdenum powder 0.6g, micro powder wax 0.75g, calcium fluoride 0.75g.

Embodiment 3

[0026] Water atomized iron powder 100g, copper powder 2.2g, graphite powder 1.0g, nickel powder 3.0g, molybdenum powder 0.8g, micro powder wax 1.0g, calcium fluoride 1.0g.

[0027] The following takes powder metallurgy bevel gears as an example to describe in detail the production method of powder metallurgy parts with installation through holes according to the present invention, and the steps are:

[0028] 1) Mixing: According to the powder metallurgy parts of the present invention, weigh the required raw materials, first fill half of the water atomized iron powder into the powder mixer, and then add copper powder and nickel powder to the powder mixer And molybdenum powder, and then add the other half of the water atomized iron powder to the powder mixer and stir evenly; then, add graphite powder, micronized wax and calcium fluoride into the powder mixer, stir evenly and pass through a sieve of 80-100 , Then, let it stand for at least 12 hours to obtain the alloy iron-based mixed...

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PUM

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Abstract

The invention discloses a powder metallurgy component which is compressed by powder materials. The powder materials includes, by weight, 100 parts of iron powder, 1.8-2.2 parts of copper powder, 0.-1.0 part of graphite powder, 2.0-3.0 parts of nickel powder, 0.4-0.8 part of molybdenum powder, 0.5-1.0 part of micro powder wax, and 0.5-1.0 part of calcium fluoride. The invention further disposed a production method of the powder metallurgy component with a through hole. The method includes: well mixing the powder materials, placing the mixed alloy iron-based powder in a die for compressing forming, sintering, mechanically drilling, thermally processing, and surface vibration grinding to obtain the powder metallurgy component. The produced powder metallurgy component is high in precision, strength and hardness, good in wear resistance, widely applicable to manufacturing of various bevel gears, and the like.

Description

Technical field [0001] The invention relates to the field of powder metallurgy, in particular to a method for producing powder metallurgy parts and powder metallurgy parts with installation through holes such as bevel gears. Background technique [0002] The so-called powder metallurgy parts refer to the finished products of various shapes by pressing the alloy iron-based mixed powder through the mold. At present, most of the bevel gears with installation through-holes still use traditional machining methods, which not only have complicated manufacturing procedures and high costs; moreover, the obtained finished products have low hardness and insufficient wear resistance, which greatly shortens the bevel gears Service life. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a powder metallurgy part with high precision, high strength, high hardness and good wear resistance. [0004] To solve the above technical problems, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F5/08C22C38/16B22F3/16
Inventor 刘爱民许荣玉宁上中
Owner 江苏宏创精密制造有限公司
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