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Sterilized stainless steel feed, sterilized stainless steel cutting tool and preparation method

A stainless steel and feeding technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of high production cost, complicated preparation, expensive price, etc., and achieve the effect of low cost, good fluidity and good dimensional stability

Pending Publication Date: 2022-03-01
TIANJIAO HOUSEHOLD MFG LTD GUANGDONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The key to metal injection molding technology lies in the preparation of feed materials. At present, the preparation of feed materials for metal powder injection molding commonly used in China is complicated, and there are defects such as poor fluidity, low strength, difficult debonding, uneven density, and many limitations; many stainless steel Manufacturers of iron and iron-based products mostly buy foreign feed materials, especially BASF feed materials in Germany, but their prices are very expensive, more than twice that of domestic feed materials, resulting in higher production costs

Method used

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preparation example Construction

[0034] The preparation method of sterilized stainless steel feeding material of the present invention, comprises the following steps:

[0035] S1, mixing stainless steel powder with powder with sterilizing function to obtain mixed powder;

[0036] S2, banburying the mixed powder with a polymer binder, crushing and granulating to obtain feed.

[0037] In step S1, in order to make the mixing more uniform, some auxiliary measures can be taken. Such as stirring, ball milling and other means. It can be understood that in order to make the mixing more uniform, it is not limited to adopt the above auxiliary methods.

[0038] Further, the powder with sterilization function accounts for 3wt%-8wt% of the mixed powder.

[0039] Further, the powder with sterilizing function includes one or a mixture of two or more of Ag powder, Cu powder, and Zn powder.

[0040] The Ag powder may be, for example, silver oxide, silver oxide, pure silver, or the like.

[0041] Cu powder makes the cutti...

Embodiment 1

[0069] The polymer binder of the present embodiment comprises the following components in mass percentage: polyoxymethylene 80%, high-density polyethylene 15%, ethylene-vinyl acetate copolymer 2%, solid paraffin 2%, pentaerythritol stearic acid Esters 3% and Antioxidants 0.2%.

Embodiment 2

[0071] The polymer binder of the present embodiment comprises the following components in mass percentage: 92% of polyoxymethylene, 3% of high-density polyethylene, 15% of ethylene-vinyl acetate copolymer, 8% of solid paraffin, pentaerythritol stearic acid Esters 1% and Antioxidants 1%.

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PUM

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Abstract

The invention discloses a preparation method of a sterilized stainless steel feed. The preparation method comprises the following steps: S1, mixing stainless steel powder with powder with a sterilization function to obtain mixed powder; and S2, the mixed powder and a high-molecular binder are subjected to banburying, crushing and granulation, and feed is obtained. The invention further discloses a preparation method of the sterilized stainless steel cutting tool. The preparation method comprises the following steps of injection, degreasing, sintering, heat treatment and edging. The sterilized stainless steel cutting tool is prepared through a metal injection molding method, the feeding fluidity is good, antibacterial elements are evenly distributed, the sintering density is high, the size stability is good, the product size precision is high, the mechanical property is excellent, batch production can be achieved, follow-up machining is little or is not needed, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of sterilized stainless steel, in particular to a sterilized stainless steel feeding material, a sterilized stainless steel cutting tool and a preparation method. Background technique [0002] Harmful microorganisms in nature are a serious threat to human health, and millions of people die from bacterial infections all over the world every year. Humans are infected with bacteria mainly through imported food and contact with bacteria. Kitchen utensils, daily utensils, and especially medical utensils that are in direct contact with food often become the source of microbial growth and reproduction. The demand for kitchenware and medical appliance products with excellent antibacterial and antibacterial properties is increasing. [0003] Traditional antibacterial stainless steel is to precipitate a certain volume fraction of copper-rich or silver-rich precipitates during high-temperature aging. When this copper-...

Claims

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Application Information

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IPC IPC(8): B22F1/103B22F3/22B22F5/00B22F3/10
CPCB22F3/225B22F5/00B22F3/1025B22F2005/001
Inventor 吴远谋莫仕栋胡可谢月光吴棒记
Owner TIANJIAO HOUSEHOLD MFG LTD GUANGDONG
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