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Metal fiber polyporous material subsequent processing method

A technology of porous materials and metal fibers, which is applied in the field of high-precision wire cutting processing, can solve the problems of blocking material pores and polluting materials, and achieves the effects of low cost, simple operation, integrity and stability

Inactive Publication Date: 2008-03-05
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Abstract
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AI Technical Summary

Problems solved by technology

The main problem of wire-cut processing of fibrous porous materials is that the saponified liquid used for cooling during wire-cutting will pollute the material and even block the pores in the material

Method used

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Experimental program
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Embodiment Construction

[0009] The present invention will be further described below in conjunction with embodiment.

[0010] The first step is to prepare at least one metal fiber porous material.

[0011] Metal fibers of any material may be used to make metal fiber materials, such as stainless steel, aluminum and aluminum alloys, copper and copper alloy fibers, and the like. The metal fiber can be produced by any known metal fiber production method, such as cluster drawing method, or cutting method and the like. The porosity of the metal fiber porous material can vary widely, with a preferred porosity greater than 70%. The term "porosity" P should be understood as: P = 100 x (1-d).

[0012] Wherein, d=(weight of 1 cubic meter of metal fiber layer) / (SF), SF=weight of dense matrix metal per cubic meter.

[0013] The second step is to fill the pores of the metal fiber porous material with paraffin wax.

[0014] Solid paraffin is preferably ordinary section paraffin. First, the solid paraffin is he...

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Abstract

The present invention discloses post-treating process of porous metal fiber material, and the process includes heating solid paraffin to form paraffin liquid, soaking the porous metal fiber material into the paraffin liquid for paraffin to fill the pores of the porous metal fiber material, taking out the porous metal fiber material and cooling fast, eliminating the surface solidified paraffin and wire electrode cutting, eliminating residual oil stain in the machined surface of the porous metal fiber material, heating in boiled water to eliminate paraffin, and final stoving. The process has the advantages of simple operation, low cost, etc. and can ensure the machining precision and maintain the integrity and stability of the pore structure effectively.

Description

technical field [0001] The invention relates to a processing method for metal fiber porous materials, in particular to a high-precision wire cutting processing method suitable for high-porosity metal fiber porous materials. Background technique [0002] Metal fiber porous materials are an important class of functional materials, which are widely used in filtration and separation, automobile exhaust purification, catalyst carriers, surface combustion, enhanced mass and heat transfer, noise reduction and other fields. basis of this function. The pores in the material reduce the solid material in the material, and the mechanical properties such as elastic modulus, tensile and shear strength of the material are significantly reduced. And the pore wall of the processing surface is easily deformed, which affects the pore structure of the material. At present, when the sample needs to have high dimensional accuracy, the material wire cutting method is often used for processing. ...

Claims

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Application Information

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IPC IPC(8): B23H7/02B23H11/00
Inventor 朱纪磊汤慧萍王建永葛渊李程
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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