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Zirconia injection molding process

A technology of injection molding and zirconia, which is applied in the processing and production of zirconia structural ceramic products, injection molding production methods and reasonable degreasing technology, which can solve the problems of restricting the application of zirconia ceramics, large specific surface of powder, and low product qualification rate, etc. problems, to achieve the effects of reduced manufacturing costs, low organic matter content, and complex structures

Active Publication Date: 2009-07-22
JIANGSU HENGXIN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large specific surface of the powder, the particle agglomeration is serious; the amount of organic or organic composite materials added is large, and the porosity of the green body is high, which makes sintering difficult and shrinks greatly, resulting in low product qualification rate and high production cost.
Seriously restrict the application of zirconia ceramics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An injection molding method of zirconia ceramics and a powder organic carrier. The zirconia powder is used as the main body, and the organic carrier is added according to the ratio of zirconia powder and the organic carrier in a ratio of 100:30 by weight. Degreasing, heating degreasing and sintering make high-performance zirconia ceramic products.

[0019] The powder organic carrier includes polyethylene, polypropylene, vegetable oil, oleic acid and paraffin. The selected ratio of the powder organic carrier is 10% of polyethylene, 30% of polypropylene, 5% of vegetable oil, 5% of oleic acid and 50% of paraffin in the total weight of the powder organic carrier.

[0020] The manufacturing process of the zirconia ceramic products includes:

[0021] 1. Steps of compacting: first adjust the temperature of the compactor to 160 degrees, and divide 80 parts by weight of organic carrier and 100 parts by weight of zirconia powder into 4 parts alternately with organic carrier and ...

Embodiment 2

[0027] An injection molding method for zirconia ceramics and a powder organic carrier, with zirconia powder as the main body, adding an organic carrier according to the ratio of zirconia powder and organic carrier in a ratio of 100:10 by weight, using an injection molding process to make a green body, and then passing through a medium Degreasing, heating degreasing and sintering make high-performance zirconia ceramic products.

[0028] The powder organic carrier includes polyethylene, polypropylene, vegetable oil, oleic acid and paraffin. The selection ratio of the powder organic carrier is 30% of polyethylene, 10% of polypropylene, 40% of vegetable oil, 1% of oleic acid and 19% of paraffin in the total weight of the powder organic carrier.

[0029] The manufacturing process of the zirconia ceramic products includes:

[0030]1. Steps of compacting: first adjust the temperature of the compactor to 80 degrees, divide 10 parts by weight of organic carrier and 100 parts by weight...

Embodiment 3

[0036] An injection molding method of zirconia ceramics and a powder organic carrier. The zirconia powder is used as the main body, and the organic carrier is added according to the weight ratio of zirconia powder and organic carrier in a ratio of 100:50. Degreasing, heating degreasing and sintering make high-performance zirconia ceramic products.

[0037] The powder organic carrier includes polyethylene, polypropylene, vegetable oil, oleic acid and paraffin. The selection ratio of the powder organic carrier is 20% of polyethylene, 20% of polypropylene, 30% of vegetable oil, 5% of oleic acid and 25% of paraffin in the total weight of the powder organic carrier.

[0038] The manufacturing process of the zirconia ceramic products includes:

[0039] 1. Steps of compacting: first adjust the temperature of the compactor to 120 degrees, divide 50 parts by weight of organic carrier and 100 parts by weight of zirconia powder into 3 parts alternately with organic carrier and zirconia ...

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Abstract

A zirconia injection molding method, which adopts an injection molding method of zirconia ceramics, a powder organic carrier and a reasonable degreasing process: using zirconia powder as the main body, adding a certain amount of an optimized combination of organic carriers, and adopting injection molding The green body is made by the process, and high-performance zirconia ceramic products are made through reasonable degreasing and sintering processes. The manufacturing process of the zirconia ceramic product includes: a compacting step, an injection molding step, a medium degreasing step, a heating degreasing step and a sintering step. The powder organic carrier includes: polyethylene, polypropylene, vegetable oil, oleic acid and paraffin. And the ratio of zirconia powder to powder organic carrier is 100:10-80 parts by weight.

Description

technical field [0001] The invention relates to a manufacturing method and a reasonable degreasing process of structural ceramics, in particular to an injection molding manufacturing method and a reasonable degreasing process of a high-performance zirconia ceramic product, which belongs to the field of structural ceramic processing and is mainly used for processing and manufacturing Zirconia structural ceramic products. Background technique [0002] Zirconia ceramics have the unparalleled advantages of traditional ceramics such as high hardness, high toughness, high density, and excellent mechanical properties. It is one of the most promising and economical structural ceramic materials in the 21st century. Zirconia structural ceramics are widely used in many industries such as aerospace, communication, machinery, and chemical industry. Zirconia is a variable crystal material. If the raw material preparation process of stable or partially stable crystal phase transition is n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/632C04B35/638C04B35/48
Inventor 王有才
Owner JIANGSU HENGXIN TECH CO LTD
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