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Iron sintered component and producing method and sintered mechanical parts

A manufacturing method, iron-based technology, applied in the field of iron-based sintered parts and its manufacture, and sintered mechanical parts, can solve the problems of reduced strength, inability to impart strength and machinability separately, and achieve the effect of strength and machinability

Active Publication Date: 2006-09-20
昭和电工MATERIALS株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology can easily improve the machinability of sintered parts only by selecting material powder, but the strength of sintered parts where machinability is not required decreases
Therefore, when it is actually applied to mechanical parts, it is impossible to impart strength and machinability separately, and there is still room for improvement.

Method used

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  • Iron sintered component and producing method and sintered mechanical parts
  • Iron sintered component and producing method and sintered mechanical parts
  • Iron sintered component and producing method and sintered mechanical parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0059] (Effect of copper immersion on machinability and strength)

[0060] As the raw material powder, prepare Cu: 3.0% by mass, C: 1.0% by mass, B 2 o 3 : 0.7% by mass of powder for iron-based sintered structural parts with the balance being Fe and unavoidable impurities, mixed with a V-type mixer for 30 minutes, and compacted to a density of 6.7g / cm 3 , get as image 3 A powder compact in the shape of the bearing cap shown. In addition, pure copper powder is compacted to obtain such as image 3 2 dipping materials shown.

[0061] Then, after presintering the above-mentioned powder molded body at 690° C. in a reducing environment, in order to impregnate the part of the presintered body in contact with the bolt support surface with an impregnation material, image 3 In the form shown, the immersion material is placed on the pre-sintered body, and sintering (immersion) is performed at 1130° C. in a reducing atmosphere in this state.

[0062] Figure 4 is a photo of the struc...

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Abstract

The invention relates to an iron sinter element and relative production, which can improve high strength and cutting property. Wherein, arranging the fuse dip material formed by molding metallic powder on at least one part of the surface of sinter element that obtained by heating the powder former on the iron sinter element; sintering the powder former with said fuse dip material, at the temperature above the carbon disperse temperature and under the fuse point of fuse dip material; and said powder is the iron powder mixture that removed graphite powder from the power mixture of iron sinter element that in pearlite organism; adding 0.01-1.0 mass% boric oxide and 0.1-2.0 mass% graphite powder, then said metallic powder is the copper or copper alloy powder.

Description

technical field [0001] The present invention relates to a method for manufacturing an iron-based sintered part, an iron-based sintered part obtained by using the same, and a sintered machine part, and particularly relates to the ability to set positions with excellent strength and machinability at high standards in one sintered part Manufacturing technology of iron-based sintered components in excellent position. Background technique [0002] Iron-based sintered parts produced by powder metallurgy are used in various fields because they are inexpensive to manufacture and have excellent mechanical properties such as strength and wear resistance. When such iron-based sintered parts are used in machine parts and the like, machining may be required after sintering, and particularly good machinability is required in this case. [0003] Therefore, in consideration of this point, various techniques have been proposed in order to improve the machinability of iron-based sintered par...

Claims

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Application Information

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IPC IPC(8): B22F7/08
Inventor 山西祐司筒井唯之石井启
Owner 昭和电工MATERIALS株式会社
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