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Powder forming mold and preparation method of cold consolidation forming material

A technology for forming molds and powders, which is used in material forming presses, manufacturing tools, presses, etc., and can solve the problems of being unsuitable for laboratory miniaturization, low compressive strength of pellets, and difficulty in demoulding. Wide range, stable pressing, easy demolding effect

Pending Publication Date: 2021-09-07
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disc pelletizing is easy to operate, but it needs to add binder and water, and the compressive strength of pellets is not high; cold consolidation pressure pelletizing is directly pelletized under the action of external pressure, which has the advantage of high compressive strength, but Usually, the demoulding of this method is difficult, the mechanism is complicated and the cost is high, and it is completely unsuitable for the miniaturization of the laboratory.
For the production of cake-shaped molding materials, the processing method is mainly cold consolidation extrusion molding, which can achieve sufficient and close contact of materials, but conventional devices still have the problem of difficult demoulding

Method used

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  • Powder forming mold and preparation method of cold consolidation forming material
  • Powder forming mold and preparation method of cold consolidation forming material

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Experimental program
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Effect test

Embodiment 1

[0028] As shown in Fig. 1, a kind of powder forming mold and cold consolidation profile preparation method described powder forming mold comprises the lower punch 1 that is arranged on the bottom, the cavity 2 of ellipsoid shape, and the upper punch that is arranged on the top 3.

[0029] The ball pressing die includes a T-shaped upper punch 1 and a T-shaped lower punch 3 with a straight through hole in the middle, and T-shaped lower punches 3 whose ends are matched with the vertical through hole. Both the T-shaped upper punch 3 and the T-shaped lower punch 1 are composed of a pressure bearing body with an ellipsoidal bottom and a pressure transmission rod arranged concentrically with the pressure bearing body.

[0030] A kind of powder forming mold and cold consolidation profile preparation method, present embodiment prepares a kind of spherical profile, carries out according to the following steps:

[0031] (1) Lower punch installation: install the lower punch 1 in the vert...

Embodiment 2

[0043] As shown in Figure 2, a powder forming mold and a method for preparing cold-consolidated molding materials. The powder forming mold includes a lower punch 1 arranged at the bottom, a cylindrical cavity 2 equipped with a tablet pressing assembly, and a cylindrical cavity 2 arranged at the bottom. Upper punch 3.

[0044] The cake pressing mold includes a straight through hole in the middle, and a T-shaped upper punch 1 and a T-shaped lower punch 3 whose ends are matched with the vertical through hole. Both the T-shaped upper punch 3 and the T-shaped lower punch 1 are composed of a pressure bearing body with a flat bottom and a pressure transmission rod arranged concentrically with the pressure bearing body.

[0045] A kind of powder forming mold and cold consolidation profile preparation method, present embodiment prepares a kind of spherical profile, carries out according to the following steps:

[0046] (1) Lower punch installation: install the lower punch 1 in the ver...

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Abstract

The invention discloses a powder forming mold and a preparation method of a cold consolidation forming material. The powder forming mold mainly comprises a lower punch, a cavity, an upper punch, a material receiving support and a rawhide hammer, the working process of the powder forming mold comprises the steps of lower punch installation, sample adding, upper punch installation, pressing, demolding, material receiving and the like, and spherical and cake-shaped forming materials can be prepared. The mold and the method are good in raw material adaptability, can be suitable for compression forming of organic solid materials, inorganic non-metallic materials, mineral powder and the like, and have the advantages of being simple and convenient to operate, and the pressed spherical or cake-shaped materials have the advantage of high compressive strength.

Description

technical field [0001] The invention relates to a powder molding device for laboratory use, and specifically provides a powder molding mold and a method for preparing cold-consolidated profiles. Background technique [0002] At this stage, the existing experimental devices for powder molding in research institutes and university laboratories can process powder materials into spherical or cake shapes under a certain pressure or binding force, and are mostly used in pharmaceutical factories, chemical factories and metallurgical factories. processing field. The main purpose of processing into molding materials is to simulate pellets or sinter pellets on the one hand; on the other hand, to improve the contact between materials and increase the heat transfer and mass transfer rates. For the production of spherical molding materials, the processing methods are mainly disc pelletizing and cold consolidation pressure pelletizing. Disc pelletizing is easy to operate, but needs to a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B15/02B30B11/04B30B15/32
CPCB30B15/02B30B11/04B30B15/32
Inventor 左宗良陈怡珊罗思义彭博綦玉洁李晓腾刘雪洁任冬冬
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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