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Special die for long bar ceramic blank bottom-pressing liquid lifting casting formation and preparation method for producing long bar ceramic by using same

A technology for ceramic blanks and long rods, which is applied in the field of special molds for inorganic non-metallic materials and their preparation, can solve the problems of scrapping, gas can not be discharged, pore defects, etc., and achieves the effects of high quality, good practical value and high production efficiency.

Active Publication Date: 2013-07-10
SHANDONG ULSTREETCARING FINE CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problem that the gas in the mold cavity hole is easily blocked by the slurry and cannot be discharged when the slurry is poured into a slender rod-shaped ceramic body, and the problem that the air hole defect is left in the body and is scrapped, and provides a method for each molding Multi-piece products, improving production efficiency, meeting the requirements of industrial production, a special mold for down-pressing liquid-rising injection molding of a long rod-shaped ceramic body and a preparation method for producing long rod-shaped ceramics by using the mold

Method used

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  • Special die for long bar ceramic blank bottom-pressing liquid lifting casting formation and preparation method for producing long bar ceramic by using same
  • Special die for long bar ceramic blank bottom-pressing liquid lifting casting formation and preparation method for producing long bar ceramic by using same

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Embodiment Construction

[0030] The present invention will be further elaborated below by taking the production of Y-TZP ceramic circular shaft blank as an example.

[0031] The production steps are as follows:

[0032] 1) Preparation of slurry

[0033] Prepare gelatable Y-TZP ceramic slurry according to process requirements;

[0034] 2.) Mold closing

[0035] First, insert the slurry cylinder 2 into the base 1 through the groove to form a female mold for the slurry with a lower seal, and then combine the 10-layer template 4 with half holes and insert it into the fastening ring 3 to become a fixed belt 37. A male mold with a Φ6mm×110mm round through hole; the taper of the fastening ring 3 is 5°.

[0036] 3) Down-pressing liquid raising method pouring

[0037] Pour the slurry into the assembled female mold along the inner wall, then pull the male mold and slowly sink into the slurry of the female mold, pause for about 5 seconds when it reaches the bottom of about 5mm and then sink to the bottom, th...

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Abstract

The present invention specifically involves a long -rod ceramics under -pressure littering molding molding mold and the use of this mold to produce long stick -like ceramics.The mold is characterized by the overall circular base with a groove, and the outer diameter and the inner diameter of the groove of the outer diameter and the base of the base.The overall fastening ring of the cone degree, the outer conicalness is composed of a multi -layer band template combination with the same tahole in the tight ring. The slurry tube is mounted on a round base through the groove.After the multi -layer half -hole template combination, the fastener ring is stuffed to form a fixed yang model with multiple pores.This method is characterized by: 1) preparation of slurry; 2) modules; 3) downward pressure liquid pouring; 4) Gel curing and dehydration; 5) dehydration and sintering.The invention mold is simple and the raw material utilization rate is high; the use of the method of the present invention can realize the mass production of long stick -shaped ceramic body.

Description

technical field [0001] The invention belongs to the field of a special mold for inorganic non-metallic materials and a preparation method thereof, and in particular relates to a special mold for down-pressing liquid-rising injection and coagulation forming of a long rod-shaped ceramic body and a preparation method for producing long rod-shaped ceramics by using the mold. Background technique [0002] For the slender rod-shaped ceramic body, the commonly used production methods are mainly plastic mud extrusion method and wax slurry hot die casting method. When the size is large, cold isostatic pressing method can also be used. [0003] The mud extrusion method has a high degree of mechanization and is more suitable for large-scale production. As long as the nozzle diameter of the mud extrusion machine and the length of the cutting section are well controlled, a ceramic body with good dimensional consistency can be obtained. The key technology is to mix the mud with high solid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28B7/16B28B13/04B28B7/14
Inventor 陈大明常虹
Owner SHANDONG ULSTREETCARING FINE CERAMICS
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