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Ceramic blank shaping mold capable of rapidly demoulding

A technology for forming molds and ceramic blanks, applied in the direction of forming indenters, etc., can solve problems such as difficulty in demoulding

Inactive Publication Date: 2009-06-24
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to develop a ceramic blank forming mold that is easy to demould in view of the above-mentioned difficult phenomenon of demoulding after the blank is formed.

Method used

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  • Ceramic blank shaping mold capable of rapidly demoulding
  • Ceramic blank shaping mold capable of rapidly demoulding
  • Ceramic blank shaping mold capable of rapidly demoulding

Examples

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Embodiment Construction

[0014] exist figure 2 In the example of this case shown, the focus is on the structure of the female mold. The structure of the actual mold includes the mold pads that are used in combination with each other in sequence, and the female mold, and the upper die punch. The female mold is a cylinder, and the upper mold The punch is a cylinder with one end placed in the cavity of the female die to apply pressure to the powder sample, and the die pad is a disc-shaped gasket placed in the cavity of the female die opposite to the pressure-applying end of the punch. In this example , highlighting the technical features of this case is that the structure of the female mold is composed of two troughs, the two troughs are respectively trough 4 and trough 5, which belong to trough 4 Opposed to the two groove surfaces of the groove 5, the structure of the female mold also includes four arms, which are arm 1, arm 3, and arm 7 respectively. And the arms 9, the four arms are hinged to each o...

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Abstract

The invention relates to a ceramic blank forming die capable of quickly demoulding, belongs to the field of ceramic formation, and aims to solve the problem that the prior ceramic forming die is difficult to demould during use. The die comprises a die cushion, a die cavity, and an upper punch, which are mutually packaged in turn and used together; and the die adopts the key point that the die cavity consists of two valve groove shaped objects, the structure of the die also comprises four supporting arm shaped objects which are mutually hinged to form an open chain structure, the front end and the tail end of the chain structure are connected with the two valve groove shaped objects respectively, the arm shaped objects are made of magnetic conducting materials, and the surface of at least one arm shaped object is wound with a magnet exciting coil. The die cavity structure can be easily controlled by switching motion of an external power supply to be quickly changed between a magnet-absorbing gripping state and a power-off loose state, so the die can solve the problem of difficult demoulding.

Description

technical field [0001] The invention relates to a mold for forming a ceramic blank capable of rapid demoulding, which belongs to the field of B28B ceramic forming. Background technique [0002] Dry compression molding of powder is a high-efficiency molding method, which is widely used in the production of enterprises and the research and development experiments of related scientific research departments. [0003] In the process of carrying out a research and development experiment on silicon carbide ceramics, the designer of this case noticed that there is a defect in the forming mold used. The extension becomes more and more obvious. The reason is due to the high hardness of silicon carbide. Since the hardness of silicon carbide is second only to diamond, in the process of molding, it forms a strong scraping effect on the inner wall of the female mold. It doesn't take long for the wall surface of the inner wall of the female mold to be planed. In the area where the forming...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B3/04
Inventor 李榕生李月娇姜晶晶孔祖萍孙杰杨欣王峰巫远招王鲁雁
Owner NINGBO UNIV