Mould for forming multi-channel filter element and method for forming intermetallic compound multi-channel filter element
A multi-channel and mold technology, applied in the field of multi-channel filter element molding, can solve the problems of extremely high mold application, unmolded mandrel, and restriction of multi-channel filter element production, so as to achieve the effect of improving the overall quality and ensuring the position degree.
Active Publication Date: 2012-12-26
CHENGDU INTERMENT TECH
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Problems solved by technology
However, the above structure alone is not enough to satisfy the requirement
Because the pressure medium will exert extremely high pressure on the mold during isostatic pressing, so each slender mandrel will be squeezed by the surrounding powder and bend, resulting in the mandrel not being able to be demolded
Since this problem cannot be solved at present, it also limits the production of multi-channel filter elements of intermetallic compounds
Method used
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[0026] The present invention will be further described below in conjunction with the accompanying drawings.
[0027] like Figure 1~3 shown. The outer mold 1 includes a rigid sleeve 102 formed by detachable fastening of two petal-shaped parts 105, 106, and a front end cover 101 and a rear end cover 104 respectively mounted on the front and rear ends of the rigid sleeve 102; each mandrel 2 is supported by a support tube 202 and the elastic sleeve 201 sleeved on the support tube 202, the end of each mandrel 2 has an elastic sleeve extension 204 axially extended from the port of the support tube 202 by the elastic sleeve 201; each mandrel 2 The two ends are respectively inserted into the matching positioning holes 108 on the front end cover 101 and the rear end cover 104, and a plug 3 is inserted into the elastic sleeve extension 204 to make the elastic sleeve extension 204 expand tightly in the positioning hole 108 Between the plug 3; the plug 3 is a hollow structure with open...
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The invention discloses a mould which is easy to demould a core rod and used for forming a multi-channel filter element. The mould comprises an outer mould and multiple core rods mounted in the outer mould, wherein each core rod is composed of a support tube and an elastic sleeve sleeved on the support tube; multiple through holes are formed on the wall, on which the elastic sleeve is sleeved, of each support tube; and at least one end of each core rod is an open end communicated with the exterior of the mould. The support tubes can support the core rods so as to accurately position the core rods in the outer mould, thereby basically ensuring the true position after inner bores of a filter element are formed and improving the entire quality of the filter element; when the elastic sleeve is formed, the elastic sleeve extrudes powder filled between the outer mould and the core rods from inside to outside so as to carry out compression moulding on the powder; and during demoulding, the elastic sleeve retracts so as to demould the core rods. The invention also discloses a method for forming an intermetallic compound multi-channel filter element, wherein an intermetallic compound material filled in the cavity of the mould is pressed into the multi-channel filter element by use of an isostatic pressing technology. By utilizing the method, the cold isostatic pressing manufacturing of the intermetallic compound multi-channel filter element is achieved.
Description
technical field [0001] The invention relates to a molding technology of a multi-channel filter core. Background technique [0002] There are currently no multi-channel filter elements made of intermetallic compounds on the market. The reason is that, with the existing filter element manufacturing technology, it is only possible to use the isostatic pressing method to make the intermetallic compound into a multi-channel filter element, and there is currently no mold suitable for isostatic pressing of the multi-channel filter element. Practically speaking, if those skilled in the art want to develop a mold for isostatic pressing of a multi-channel filter element, the mold is designed to include an outer mold and a plurality of core rods installed in the outer mold. Should be obvious. However, the above structure alone is not enough to satisfy the requirement. Because, during isostatic pressing, the pressure medium will exert extremely high pressure on the mold, so each slen...
Claims
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IPC IPC(8): B22F3/03B22F5/10
Inventor 贺跃辉高麟徐进辉汪涛徐君亮蒋敏
Owner CHENGDU INTERMENT TECH