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Feeding formula in a metal injection molding process and preparation process thereof

An injection molding and feeding technology, applied in the field of metal powder injection, can solve problems such as unfavorable product production and application, MIM process development problems, etc., and achieve the effect of ensuring batch stability and high production efficiency

Active Publication Date: 2017-12-15
SHANGHAI 3S MIM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the rapid development of the current MIM process, this mode is not conducive to the production and application of products, and has brought great troubles to the development of the current MIM process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Carbonyl iron powder 87.9g; S23205g; high-density polyethylene 3g; high-density polypropylene 3g; ABS 7571g; stearic acid 0.1g.

[0035] Mix the above raw materials evenly; use a micro-mixer to pre-mix the mixed raw materials for 0.5 hours at room temperature; then place them in an internal mixer for sealed mixing, keep at 170°C, and mix for 1 hour; then use a dryer to dry the raw materials. The material is dehumidified and dried; the fed material after banburying is made into granular shape with a granulator to obtain the product.

Embodiment 2

[0037] Carbonyl iron powder 86.9g; S232010g; high-density polyethylene 1g high-density polypropylene HDPP 1g; ABS 7571g; stearic acid 0.1g. Method is identical with embodiment, obtains product.

Embodiment 3

[0039] Carbonyl iron powder 86.9g; S23208g; high-density polyethylene 2g; high-density polypropylene HDPP 2g; ABS 7571g; stearic acid 0.1g. Method is identical with embodiment, obtains product.

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PUM

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Abstract

The invention discloses a feeding formula in the metal injection molding technology and a preparation technology thereof. The feeding formula comprises powdery raw material composed of, by weight, 80-90% of metal powder, 5-10% of polyformaldehyde (POM) resin, 1-3% of high-density polyethylene (HDPE), 1-3% of high-density polypropylene (HDPP), 0.5-1.5% of ABS and 0.01-0.1% of stearic acid. The feeding formula in the metal injection molding technology and the preparation technology thereof have the beneficial effects that the feeding and mixing technology is innovated, the special mixing technology and the special control scheme are designed, the batch stability of feeding is guaranteed and the production efficiency is high; the project research and development is encouraged by the nation, accords with the national industrial policy and investment orientation and meets the national requirements of energy conservation and emission reduction and innovation of the advanced manufacturing technology; and meanwhile, the processing technology is upgraded, and the activity of the peripheral related manufacturing industries can be promoted.

Description

technical field [0001] The invention relates to a feeding formula, in particular to a feeding formula in a metal injection molding process and a preparation method thereof, belonging to the technical field of metal powder injection. Background technique [0002] Feed formulation technology is the most critical core technology in the M I M industry. At present, there are almost no large-scale professional feed production enterprises in China, and there is no domestic feed brand recognized by the industry. The domestic feed market is basically monopolized by BASF in Germany. Some people in the domestic industry try to produce several brands of feeding materials on a small scale, but their performance indicators, batch stability, and universality are far from those of German brands. Therefore, it is necessary to study the feeding formula technology and Products have important practical and strategic significance. [0003] In the past five years, metal injection molding (MIM) p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F3/115
CPCB22F1/0003B22F3/115
Inventor 金恒李朋
Owner SHANGHAI 3S MIM TECH
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