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Vertical powder forming die

A powder molding and mold technology, applied in the field of vertical powder molding molds, can solve problems such as low yield, uneven product density, and poor size, and achieve improved product qualification rate, high appearance consistency, and uniform product density Effect

Inactive Publication Date: 2017-06-27
TIANJIN JINGHONG ELECTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the general PTFE powder forming mold is mainly composed of an upper mold and a lower mold. Put the powder into the membrane cavity surrounded by the upper mold and the lower mold, and press the powder in the membrane cavity through the upper mold and the lower mold. However, when this kind of method uses a mold to form a product, the powder filling of each part cannot be completely balanced due to the difference in shape, resulting in uneven density of the formed product, deformation during sintering, resulting in out-of-tolerance size, and low yield.

Method used

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] Such as Figure 1-Figure 2 As shown in the structural diagram of the present invention, the present invention provides a vertical powder molding die, which includes an upper die 1 and a lower die 2, and side slides 3 extending outward are respectively provided on the four sides of the lower die 2 , Side plates 4 are respectively arranged on the side slides 3, and the side plates 4 and the lower mold 2 jointly surround the film forming chamber 5, and the upper mold 1 is sealed at the upper opening of the film chamber 5. A gasket 6 is arranged between the side slideway 3 and the side plate 4 .

[0019] A plurality of positioning holes 7 are evenly provided on the side slides 3 , and through holes 8 corresponding to the positioning holes 7 are provided on the side plate 4 .

[0020] Three positioning holes 7 are uniformly arranged on the side slides 3 respectiv...

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Abstract

The invention provides a vertical powder forming die. The vertical powder forming die comprises an upper die and a lower die, wherein a side slide way extending towards the outer side is formed in each of the four side surfaces of the lower die; a side plate is arranged on each side slide way; the side plates and the lower die are encircled into a die cavity; and the upper die is sealed at an upper opening of the die cavity. The vertical powder forming die provided by the invention has the beneficial effects of being capable of ensuring uniform filling during a filling process, avoiding dimension deviation due to deformation during sintering, and increasing the yield.

Description

technical field [0001] The invention belongs to the technical field of powder forming, and in particular relates to a vertical powder forming die. Background technique [0002] As a polymer material with excellent performance, PTFE has excellent chemical stability, electrical insulation, extremely low dynamic friction coefficient, non-combustibility, chemical corrosion resistance and high mechanical strength, and is widely used in various industries. At present, the general PTFE powder forming mold is mainly composed of an upper mold and a lower mold. Put the powder into the membrane cavity surrounded by the upper mold and the lower mold, and press the powder in the membrane cavity through the upper mold and the lower mold. However, when this method uses a mold to form a product, the powder filling of each part cannot be completely balanced due to the difference in shape, resulting in uneven density of the formed product, deformation during sintering, resulting in out-of-tol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C43/36B29K27/18
CPCB29C43/006B29C43/36B29K2027/18
Inventor 纪秀峰夏慈军
Owner TIANJIN JINGHONG ELECTRONICS MATERIAL