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Flexible multi-hole metal foil and manufacturing method thereof

A porous metal and flexible technology, applied in the field of sintered metal porous materials and their preparation, can solve problems such as limited use range

Active Publication Date: 2015-05-06
CHENGDU INTERMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned tube-type or plate-type sintered metal porous material filter elements are limited in scope of use due to their shape, structure and accompanying requirements for filter devices and systems.

Method used

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  • Flexible multi-hole metal foil and manufacturing method thereof
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  • Flexible multi-hole metal foil and manufacturing method thereof

Examples

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preparation example Construction

[0040] The steps of the preparation method of the flexible porous metal foil 100 include: (1) configuring the raw material powder constituting its metal porous material into a viscous suspension with a dispersant and a binding agent; (2) dissolving the suspension The liquid is injected into the molding cavity of the film-making tooling and dried to form a homogeneous membrane; (3) the membrane is placed in a sintering tool that matches the shape of the membrane, and then constrained sintering is carried out. Take it out from the sintering tool and obtain the flexible porous metal foil 100 .

[0041] In the above method, the dispersant can use ethanol, methyl ethyl ketone, toluene and other organic solvents with low surface tension and quick volatilization and easy drying; the binding agent can use PVB, PVA, PVC, polyvinyl alcohol, polyethylene glycol (low molecular wax) ), paraffin, fatty acids, aliphatic amides and esters, etc.

[0042] In the above method, the ratio between...

Embodiment 1

[0058] The flexible porous metal foil 100 is a rectangular sheet made of Ni-Cu solid solution alloy porous material. The sheet has a thickness H of 10 μm, a length of 160 mm, a width of 125 mm, an average pore diameter of 18.4 μm, and a porosity of 58.37%. The preparation method of the flexible porous metal foil 100 is as follows: First, uniformly mix Ni powder and Cu powder to form raw material powder, wherein the mass of Cu powder is 30% of the mass of the raw material powder, and then use ethanol as a dispersant and PVB as a binder , the mass ratio of PVB and ethanol is 2.5:100 ratio that PVB is added in the ethanol to make PVB solution, after this adds raw material powder in the PVB solution by the ratio of adding raw material powder 25g in every 100ml ethanol, makes raw material powder by stirring Fully disperse evenly to obtain a viscous suspension; secondly, inject the suspension into such as Figure 2~3 In the molding cavity of the shown film-making tooling and make it...

Embodiment 2

[0060] The flexible porous metal foil 100 is a rectangular sheet made of Ni-Cu solid solution alloy porous material. The sheet has a thickness H of 100 μm, a length of 200 mm, a width of 130 mm, an average pore diameter of 30 μm, and a porosity of 61.68%. The preparation method of the flexible porous metal foil 100 is as follows: First, uniformly mix Ni powder and Cu powder to form raw material powder, wherein the mass of Cu powder is 60% of the mass of the raw material powder, and then use ethanol as a dispersant and PVB as a binder , the mass ratio of PVB and ethanol is the ratio of 4:100 that PVB is added in the ethanol to make PVB solution, then adds raw material powder in the PVB solution by the ratio of adding raw material powder 40g in every 100ml ethanol, makes raw material powder by stirring Fully disperse evenly to obtain a viscous suspension; secondly, inject the suspension into such as Figure 2~3 In the molding cavity of the shown film-making tooling and make it d...

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Abstract

Then invention discloses flexible multi-hole metal foil with excellent properties and a manufacturing method of the flexible multi-hole metal foil. The flexible multi-hole metal foil is a sheet made of metal multi-hole materials which regard solid solution alloy as a matrix phase, the thickness of the sheet is 5-200Mum, the average hole diameter of the sheet is 0.05-100Mum, the porosity of the sheet is 15-70%. The manufacturing method of the flexible multi-hole metal foil comprises the steps that (1) a carrier is prepared, and the carrier is foil made from an element or multiple elements from which the metal multi-hole materials of the flexible multi-hole metal foil are made; (2) raw material powder made from the other elements of the metal multi-hole materials is configured to be viscous turbid liquid by using a dispersing agent and an adhesion agent; (3) the turbid liquid is adhered to the surface of the carrier and then drying is performed to form a diaphragm adhering to the surface of the carrier; (4) the carrier to which the diaphragm is adhered is put into a sintering tool which is consistent with the shape of the carrier and then constraint sintering is performed, and the flexible multi-hole metal foil is taken out from the sintering tool and obtained after sintering.

Description

technical field [0001] The invention relates to a sintered metal porous material and its preparation, in particular to a flexible porous metal foil and its preparation method. Background technique [0002] Sintered metal porous materials are mainly used as filter materials. In specific applications, it is necessary to make filter elements of a certain shape and structure from sintered metal porous materials. The existing sintered metal porous material filter elements are basically tube or plate structures. Their preparation principles are similar, that is, roughly as follows: first, the raw material powder constituting the metal porous material is pressed into a tube-shaped or plate-shaped compact (usually using isostatic pressing technology) through a special molding die, and then pressed against The blank is sintered, and the product is obtained after sintering. [0003] The aforementioned tube-type or plate-type sintered metal porous material filter elements are limite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F7/04B22F3/11
Inventor 高麟汪涛樊彬
Owner CHENGDU INTERMENT TECH
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