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Processing technology of metal fiber porous filtering material

A technology of metal fiber and processing technology, applied in the field of processing technology of metal fiber porous filter material, to achieve the effect of stable product quality, easy control and avoiding local clogging points

Pending Publication Date: 2020-07-28
中滤(苏州)新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current domestic technical level cannot meet the high-end demand, and this part of demand basically depends on foreign imports to fill

Method used

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Embodiment Construction

[0031] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0032] A kind of processing technology of metal fiber porous filter material of the present invention is characterized in that, described technology comprises the following steps:

[0033] S1: Porous material preparation: drafting→fracture→fiber delivery→airflow forming→bonding→detection;

[0034] S2: Lamination: selection→stacking→rolling→detection;

[0035] S3: Vacuum heat treatment: loading → lamination → sintering → cooling → unloading;

[0036] S4: Metal calendering: shaping→cutting→detection→packaging;

[0037] In the step S1, the drafting adopts a three-stage drafting fracture process, which is easy to disperse and form single fibers, and the fracture length can be adjusted freely, which is more convenient for the control of the fiber len...

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Abstract

The invention discloses a processing technology of a metal fiber porous filtering material. The processing technology comprises the following steps of: S1, preparing a porous material: drafting, breaking, conveying fibers, carrying out air flow forming, bonding and detecting; S2, compounding: selecting, superposing, rolling and detecting; S3, vacuum heat treatment: loading, laminating, sintering,cooling and unloading; and S4, metal calendering: shaping, cutting, detecting and packaging. The three-section drafting fracture process is adopted for drafting, single fibers are easy to disperse andform, the fracture length can be freely adjusted, the fiber length is more convenient to control, the problem of end bonding of output metal fibers is completely solved, local blockage points of a filter material are avoided, and the porosity and the filter efficiency of the porous material are greatly improved; an airflow forming process combining closed circulation and suction is adopted, a plurality of controllers and sensors are arranged and used for monitoring various parameters in the equipment operation process in real time, and a humidity regulator is arranged in an air duct and usedfor solving the static problem of metal fibers.

Description

technical field [0001] The invention relates to the technical field of porous filtration, in particular to a processing technology of a metal fiber porous filter material. Background technique [0002] Filtration traditionally refers to the removal of contaminants from the gas or liquid phase using porous media. This porous medium is usually the filter material. In many fields, non-porous dense membranes can also be used for filtration and separation, such as palladium alloy dense metal membranes for hydrogen separation and purification. In terms of materials, filter materials can be divided into two categories: organic and inorganic; according to the pore size, they can be divided into microfiltration membranes, ultrafiltration membranes, nanofiltration membranes and reverse osmosis membranes. Organic films are usually made of organic materials or polymer materials, such as polypropylene melt-blown film, polytetrafluoroethylene film and polyester. Inorganic membranes mai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/20
CPCB01D39/2041B01D2239/10
Inventor 李新星王兴韩强
Owner 中滤(苏州)新材料有限公司
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