Metal porous membrane preparation device based on laser shock wave effect

A technology for porous metal and preparation devices, applied in membrane technology, semi-permeable membrane separation, chemical instruments and methods, etc., can solve problems such as complex processes, achieve good toughness, avoid cracking, and avoid deceleration effects

Active Publication Date: 2014-12-17
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods generally have the disadvantage of complex process, and can only prepare limited varieties of metal porous membranes, such as stainless steel porous membranes, the above methods are not competent

Method used

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  • Metal porous membrane preparation device based on laser shock wave effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The metal film 1 described in this example is a stainless steel film with a thickness of 10 μm; the support mesh 3 is a 50 mesh stainless steel woven mesh; the distance between the metal film 2 and the support mesh 3 is 1 mm; the hard microparticles 4 are 10nm SiC particles; the absorption layer 5 is an aluminum foil with a thickness of 100μm; the confinement layer 6 is a K9 optical glass with a thickness of 3mm; the high-energy pulsed laser that the laser generator 9 can emit has a pulse width of 10ns and a maximum pulse energy of 12J.

[0021] The method for preparing a metal porous film based on the laser shock wave effect of the present invention performs the following steps:

[0022] 1) Cover the absorbing layer 5 on the surface of the constrained layer 6;

[0023] 2) Cover the surface of the absorption layer 5 with a layer of hard microparticles 4 with a thickness of about 1 μm;

[0024] 3) Cover the supporting net 3 on the hard microparticle 4;

[0025] 4) Use the clamp 1...

Embodiment 2

[0030] The metal film 1 described in this example is a titanium film with a thickness of 50 μm; the support mesh 3 is a 50 mesh stainless steel woven mesh; the distance between the metal film 2 and the support mesh 3 is 3 mm; the hard microparticles 4 are 0.2μm WC particles; absorption layer 5 is aluminum foil with a thickness of 100μm; confinement layer 6 is K9 optical glass with a thickness of 3mm; the high-energy pulsed laser that can be emitted by laser generator 9 has a pulse width of 20ns and a maximum pulse energy of 12J .

[0031] A method for laser shock processing curved surfaces of the present invention performs the following steps:

[0032] The method for preparing a metal porous film based on the laser shock wave effect of the present invention performs the following steps:

[0033] 1) Cover the absorbing layer 5 on the surface of the constrained layer 6;

[0034] 2) Cover the surface of the absorption layer 5 with a layer of hard microparticles 4 with a thickness of abo...

Embodiment 3

[0041] The metal film 1 described in this example is a stainless steel film with a thickness of 100 μm; the support mesh 3 is a 50 mesh stainless steel woven mesh; the distance between the metal film 2 and the support mesh 3 is 10 mm (guaranteed by the clamp 1); Particle 4 is a SiC particle with a particle size of 10 μm; the absorption layer 5 is an aluminum foil with a thickness of 100 μm; the constraining layer 6 is K9 optical glass with a thickness of 3 mm; the high-energy pulsed laser that the laser generator 9 can emit has a pulse width of 30 ns, The highest pulse energy is 12J.

[0042] A method for laser shock processing curved surfaces of the present invention performs the following steps:

[0043] The method for preparing a metal porous film based on the laser shock wave effect of the present invention performs the following steps:

[0044] 1) Cover the absorbing layer 5 on the surface of the constrained layer 6;

[0045] 2) Cover the surface of the absorption layer 5 with a...

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Abstract

The invention discloses a metal porous membrane preparation device based on laser shock wave effect, which comprises fixtures, a metal thin membrane, a supporting net, hard micro particles, an absorbing layer, a restraint layer, a vacuum cavity, a focusing lens and a laser generator; shock waves generated by the action of laser and materials in the restraint state are utilized to drive the micro particles, under the vacuum environment, the hard micro particles penetrate the metal thin membrane, through the supporting of the fixtures and the supporting net, the broken restraint layer cannot reach the metal thin membrane or damage the metal thin membrane, so that a complete metal porous membrane is obtained, and the device can be applied to the technical field of membrane separation.

Description

technical field [0001] The invention belongs to the field of laser processing, and in particular relates to the preparation technology of metal porous membranes. Background technique [0002] Membrane separation technology has attracted great attention from governments and many industries for its superior performance such as low-temperature non-phase-change operation, low energy consumption, high efficiency, and less loss of active ingredients in materials. It has become one of the most successful and promising high-tech technologies in the contemporary era. . Practice has proved that the development of membrane materials and membrane separation technology is inseparable. The new development of membrane materials has promoted the improvement of membrane separation technology, and the expansion of the application range of membrane separation technology has put forward new requirements for membrane materials. Commonly used separation membranes mainly include organic membrane...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D71/02B01D67/00
Inventor 戴峰泽温德平于璐张永康
Owner JIANGSU UNIV
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