Ceramic blank shaping mold help for resolving problem of difficult demoulding
A difficult problem, a technology for forming molds, which is applied in the field of ceramic billet forming molds, and can solve problems such as difficulty in demoulding
Inactive Publication Date: 2011-03-16
NINGBO UNIV
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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.
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[0013] 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. 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. The main point of this case shown is that the female mold of this case is composed of two troughs. The groove surfaces are opposite to each other, and the structure of the molding die also includes six arms, and the six arms are respectively arm 1, arm 3, arm 4, and arm 8 , arm 10 and arm 12, wherein the four arms are arm 1, arm 4, arm 8 and arm 12 are hinged from end to end to form a closed chain structure, the closed As sh...
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The invention relates to a ceramic blank forming die favorable for solving problem of difficult 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 six supporting arm shaped objects, wherein four supporting arm shaped objects of the six supporting arm shaped objects are mutually hinged from beginning to end to form a closed chain structure, a pair of opposite vertex angles of the chain structure is hinged with one end of each of the rest two supporting arm shaped objects respectively, the rest other end of each of the rest two supporting arm shaped objects is 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 close to the groove shaped objects at structural position is wound with a magnet exciting coil. The die can conveniently control opening, closing, loosening, and fastening by a power supply switch.
Description
technical field [0001] The invention relates to a ceramic billet molding die which helps to solve the difficult problem of demoulding, and belongs to the field of B28B ceramic molding. 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 a...
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IPC IPC(8): B28B7/00
Inventor 李榕生李月娇姜晶晶孙杰孔祖萍杨欣王峰巫远招王鲁雁
Owner NINGBO UNIV