Lubricant special for stainless steel in powder metallurgy and preparation method thereof

A technology of powder lubricants and stainless steel, applied in lubricating compositions, additives, petroleum industry, etc., can solve the problems of reducing the effective life of the mold and increasing the difficulty of processing, so as to prolong the service life, improve the corrosion resistance, and increase the theoretical density. Effect

Inactive Publication Date: 2016-02-24
SUZHOU ZIGUANG WEIYE LASER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous promotion of the use of stainless steel products, powder metallurgy stainless steel technology has been applied more and more, but stainless steel is a high-alloy steel, and the particle hardness is at least Hv180-210. Such hardness undoubtedly increases the difficulty of processing and reduces the mold. In order to solve the above problems, the common practice in the industry is to increase the amount of lubricant used or to choose a more effective lubricant, but excessive use of lubricant will bring new problems to the suppression, so a better way is to choose a a more effective lubricant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Step 1: Mix the raw materials including arachidic acid amide 10%, vinyl bis-ester amide 20%, amino silicone oil 2%, graphite 2%, and paraffin wax 5 by weight at room temperature;

[0014] Step 2: Heat the mixed materials to 130°C under the condition of a vacuum of 0.02MPa, keep the temperature for 50 minutes and then cool to room temperature to obtain a mixture I;

[0015] Step three: adding zinc stearate to the mixture I obtained in step two, heating to 150° C., keeping the temperature for 40 minutes and cooling to room temperature, and then grinding, pulverizing and sieving to obtain the lubricant.

Embodiment 2

[0017] Step 1: Mix the raw materials including arachidic acid amide 40%, vinyl bis-ester amide 30%, amino silicone oil 8%, graphite 8%, and paraffin wax 9% by weight at room temperature;

[0018] Step 2: Heat the mixed materials to 160°C under the condition of a vacuum degree of 0.03MPa, keep the temperature for 60 minutes and then cool to room temperature to obtain a mixture I;

[0019] Step three: adding lithium stearate to the mixture I obtained in step two, heating to 150° C., keeping the temperature for 60 minutes and cooling to room temperature, then grinding, pulverizing and sieving to obtain the lubricant.

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PUM

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Abstract

The invention relates to a lubricant composition in powder metallurgy and a preparation method thereof, and specifically relates to a metallurgical powder lubricant special for stainless steel and preparation method thereof. The lubricant material is prepared by mixing the following materials: arachidic acid amide, Vinyl ester amide, aminosilicone, graphite, paraffin and zinc stearate or lithium stearate. The preparation method comprises: mixing the arachidic acid amide, Vinyl ester amide, aminosilicone, graphite and paraffin and heating the mixture in a constant temperature, cooling the mixture to the room temperature, then adding zinc stearate or lithium stearate in the mixture, heating the mixture in a constant temperature and cooling to the room temperature again, finally grinding, crushing and sifting the mixture to obtain the lubricant. The lubricant of the invention largely promotes the theoretical density of the products, reduces the compression pressure, promotes the corrosion resistance of the metallurgical powder stainless steel, and simultaneously prolongs service lives of moulds.

Description

Technical field [0001] The invention relates to a powder metallurgy lubricant composition and a preparation method of the lubricant composition, in particular to a stainless steel special metallurgical powder lubricant and a preparation method thereof. Background technique [0002] With the continuous promotion of the use of stainless steel products, powder metallurgy stainless steel technology has been increasingly used, but stainless steel is a high-alloy steel with a particle hardness of at least Hv180-210. Such hardness will undoubtedly increase the difficulty of processing and reduce the mold. To solve the above problems, the common practice in the industry is to increase the amount of lubricant used or choose more effective lubricants, but excessive use of lubricants will bring new problems to the pressing, so it is better to choose one A more effective lubricant. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M161/00B22F1/00
Inventor 毛桂林
Owner SUZHOU ZIGUANG WEIYE LASER TECH CO LTD
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