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What is the requirement of powder metallurgy injection molding process for organic binder?

Categories: FAQStars: 3StarsVisit: -Release time: 2016-02-16 14:08:00
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Powder metallurgy injection molding process of metal powder particle size is generally in 0.5~20 mu m; theoretically speaking, the smaller the particle size, the larger the surface area, easy forming and sintering. The traditional powder metallurgy process uses more than 40 m of coarse powder. The role of organic adhesive is to bond metal powder particles, so that the mixture in the jet barrel heating with rheological properties and lubrication, that is, to drive the flow of powder carrier. Therefore, the choice of adhesive is the carrier of the whole powder.

 

Requirement of powder metallurgy injection molding process for organic binder:

1 less dosage, with less adhesive agent can make better rheological properties of the mixture;

 

2 does not react, in the process of removing the adhesive and metal powder can not afford any chemical reaction;

 

3 easy to remove, no residual carbon in the inner. Mixing metal powder with organic binder mixed together, so that a variety of raw materials into a mixture of spray forming. The uniformity of the mixture has a direct impact on its mobility, which influences the spray forming process parameters, as well as the density and other properties of the final materials. The process of spray forming is consistent with the principle of plastic injection molding process, and the equipment condition is basically the same.

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