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Adhensive for ceramet material injection molding and preparation method thereof

A cermet, injection molding technology, applied in the direction of adhesives, etc., can solve the problems of poor hardness and bending strength of cermet materials, blistering and deformation of the green body, and achieve the effect of easy dissolution, avoidance of blistering, and good effect.

Inactive Publication Date: 2009-05-06
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first object of the present invention is to overcome defects such as foaming, deformation and cracking of the green body when the binder for injection molding of the existing cermet material is removed, thereby causing the obtained cermet material In order to solve the problems of poor hardness and bending strength, a binder for injection molding of cermet materials can be provided that can make the obtained cermet materials have higher hardness and bending strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] With 70 parts by weight of solid paraffin (Henan Jinhua Wax Industry Co., Ltd., 52#), 5 parts by weight of high-density polyethylene (Lanzhou Petrochemical Company, HDPE 5000S), 10 parts by weight of ethylene-vinyl acetate copolymer (Wenzhou Huate Hot Melt Adhesive Co., Ltd., EVA), 5 weight parts of stearic acid, 5 weight parts of liquid paraffin (Guangzhou Xinjie Chemical Industry, liquid paraffin 300#) and 5 weight parts of diisooctyl phthalate (Guangzhou City Guanglianjin Chemical Co., Ltd., DIOP) was mixed in a single-screw mixer (Qidong Huali Petrochemical Equipment Factory) at a mixing temperature of 135° C. and a mixing time of 12 hours to obtain binder A1.

Embodiment 2

[0027] With 50 parts by weight of solid paraffin (Henan Jinhua Wax Industry Co., Ltd., 52#), 10 parts by weight of high-density polyethylene (Lanzhou Petrochemical Company, HDPE 5000S), 15 parts by weight of ethylene-vinyl acetate copolymer (Wenzhou Huate Hot Melt Adhesive Co., Ltd., EVA), 10 weight parts of stearic acid, 5 weight parts of liquid paraffin (Guangzhou Xinjie Chemical Industry, liquid paraffin 300#) and 5 weight parts of diisooctyl phthalate (Guangzhou City Guanglianjin Chemical Co., Ltd. (DIOP) was mixed in a single-screw mixer (Qidong Huali Petrochemical Equipment Factory) at a temperature of 155° C. and a mixing time of 25 hours to obtain binder A2.

Embodiment 3

[0029]With 60 parts by weight of solid paraffin (Henan Jinhua Wax Industry Co., Ltd., 52#), 10 parts by weight of high-density polyethylene (Lanzhou Petrochemical Company, HDPE 5000S), 12 parts by weight of ethylene-vinyl acetate copolymer (Wenzhou Huate Hot Melt Adhesive Co., Ltd., EVA), 2 weight parts of stearic acid, 8 weight parts of liquid paraffin (Guangzhou Xinjie Chemical Industry, liquid paraffin 300#) and 8 weight parts of diisooctyl phthalate (Guangzhou City Guanglianjin Chemical Co., Ltd., DIOP) was mixed in a single-screw mixer (Qidong Huali Petrochemical Equipment Factory) at a mixing temperature of 155° C. and a mixing time of 20 hours to obtain binder A3.

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PUM

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Abstract

The invention provides an adhesive for injection molding of a metal ceramic material, which contains solid paraffin, high-density polyethylene, an ethylene-vinyl acetate copolymer and stearic acid, wherein the adhesive also contains liquid paraffin and diisooctyl phthalate. The invention also provides a method for preparing the adhesive for injection molding of the metal ceramic material. The use of the adhesive can greatly improve the hardness and the bending strength of the prepared metal ceramic material.

Description

technical field [0001] The invention relates to a binder for injection molding of cermet materials and a preparation method thereof. Background technique [0002] Titanium carbonitride-based cermet materials have high hardness, wear resistance, red hardness, chemical stability and low metal friction coefficient, and also have certain toughness and strength, which can be a good substitute for cemented carbide materials Make knives, measuring tools, molds and wear-resistant parts, etc. [0003] Titanium carbonitride-based cermet materials are usually prepared by molding. The hardness and bending strength of titanium carbonitride-based cermet materials prepared by molding can meet the requirements, but the disadvantage of this method is that it cannot be prepared A cermet material with a complex structure, thus limiting the application of the cermet material. In order to prepare titanium carbonitride-based cermet materials with complex structures, the cermet materials are oft...

Claims

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Application Information

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IPC IPC(8): C09J123/08B22F3/22
Inventor 舒剑郭忠臣向其军
Owner BYD CO LTD
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