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A method for sintering metal fiber porous materials with interpenetration and controllable porosity

A porous material and metal fiber technology, which is applied in the field of material preparation, can solve the problems of wasting time and energy consumption, and achieve the effect of saving time, saving energy, and precisely controlling the porosity

Active Publication Date: 2017-11-03
JIAMUSI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention solves the problem of large energy consumption and time-wasting problems in the preparation of metal porous materials with different porosities when preparing porous metal materials with different porosities, and proposes a Controllable Sintering Method of Metal Fiber Porous Materials

Method used

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  • A method for sintering metal fiber porous materials with interpenetration and controllable porosity
  • A method for sintering metal fiber porous materials with interpenetration and controllable porosity
  • A method for sintering metal fiber porous materials with interpenetration and controllable porosity

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specific Embodiment approach 2

[0049] Specific embodiment 2. This embodiment is a further description of the sintering method of a metal fiber porous material with a permeability and controllable porosity described in the specific embodiment 1. The metal fiber described in step 1 is aluminum fiber, stainless steel Fiber, iron-chromium-aluminum alloy fiber, titanium alloy fiber, molybdenum fiber or copper fiber, the value range of n: 2≤n≤33, the pressure range during cold pressing: 0.1~1t.

specific Embodiment approach 3

[0050] Specific Embodiment 3. This embodiment is a further description of the sintering method of a metal fiber porous material with permeability and controllable porosity described in Embodiment 1 or 2. In step 2, the upper pressing column block 3, Protective paint boron nitride or molybdenum disilicide is applied between the pressing column block 7 and the through hole on the inner sleeve 5 .

specific Embodiment approach 4

[0051] Specific Embodiment 4. This embodiment is a further description of the sintering method of a metal fiber porous material with permeability and controllable porosity described in one of specific embodiments 1 to 3. The porous metal fiber described in step 3 When the upper ram (1) and the lower ram (6) of the material sintering mold apply pressure, the lower ram 6 is in a fixed position, and the upper ram 1 moves downward.

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Abstract

The invention relates to material preparation methods, in particular to a sintering method of porous metal fiber materials with controllable penetrability and porosity in order to solve the problems of high energy consumption and time waste due to the fact sintering is repeatedly performed for multiple times when porous metal materials with different porosity are prepared with an existing preparation method of the porous metal fiber materials. The sintering method of the porous metal fiber materials with controllable penetrability and porosity comprises following steps: step one, metal fibers are firstly subjected to spiral winding, fold weaving and cold pressing treatment, and n cylindrical porous material precast blocks with the diameter the same as that of through holes in an inner sleeve are obtained; step two, the n cylindrical porous material precast blocks obtained in the step one are put in a mold; step three, the pressure is elevated; step four, sintering is performed; step five, the temperature is reduced, and the porous metal fiber materials with different porosity are obtained simultaneously. The sintering method is applied to fields of preparation and production of the porous metal fiber materials.

Description

technical field [0001] The invention relates to a material preparation method, in particular to a metal fiber porous material sintering method with penetration and controllable porosity. Background technique [0002] Porous metal material is a new type of composite material with excellent physical and mechanical properties developed rapidly in recent years. According to the shape of the pores, porous metal materials can be divided into two categories: independent pores and continuous pores. Because the porous metal material has the characteristics of small specific gravity, high rigidity, high specific surface area, good shock absorption, excellent noise reduction effect, and high electromagnetic shielding performance. As a functional material, it is mainly used in catalyst carrier, high temperature liquid filter, atomic energy, electrochemistry, petrochemical industry, metallurgy, medicine, heat exchanger and other fields. As a structural material, it is mainly used in av...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/03B22F3/11C22C1/08
CPCB22F3/002B22F3/03B22F3/11
Inventor 张云龙胡明张瑞霞李成海廖平
Owner JIAMUSI UNIVERSITY