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Technology for machining separation layer for machining vacuum sintering net

A technology of vacuum sintering and processing technology, which is applied to the processing technology field of the separation layer, can solve the problems of high use cost of the separation layer, the vacuum sintering mesh sticks to the mesh, and the service life is short, so as to improve the processing efficiency and product quality, and the processing technology is simple. , the effect of long service life

Active Publication Date: 2014-03-26
XINXIANG LIER FILTER TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the demand for vacuum sintered mesh in my country is in a stage of steady development, and with the rapid development of petrochemical, pharmaceutical, metallurgical and other industries, my country's demand for metal composite filter materials such as vacuum sintered mesh is also growing rapidly. For a long time, in vacuum sintered In the field of vacuum sintering, sintering in the same furnace is a necessary process in the processing of vacuum sintered mesh, and when processing vacuum sintered mesh, an interlayer needs to be provided between two adjacent layers of sintered mesh in the furnace, and the cost of using the current interlayer is relatively high. High, the service life is very short, and the damage of the interlayer will lead to problems such as sticking, material denaturation, and precision changes in the processing of vacuum sintered mesh, which has become the biggest problem restricting the development of vacuum sintering. Separator layer for long processed vacuum sintered mesh

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] A processing technology for processing a separation layer for vacuum sintered nets. The stainless steel fiber wires after opening are divided into three types, and the wire diameters are φ0.035mm, φ0.056mm, and φ0.071mm. Stainless steel fiber wire, three kinds of stainless steel fiber wires are selected according to the length, the length ratio is 1:1:1, the wire length of each stainless steel fiber wire is processed to 40mm, the three kinds of stainless steel fiber wires are mixed, and selected according to 250 grams per square meter , and then evenly spread to both sides of the 0.6 / 0.18 square mesh to form a felt layer; put the laid felt into a vacuum sintering furnace, heat up to 1080°C, and keep it warm for about 4 hours; after slow cooling, roll it to a thickness of about 0.3mm; 60% alumina powder suspension, spray evenly on both sides of the stainless steel fiber felt, spray uniformly and consistently (must completely cover the mesh and fiber filaments), spray thic...

Embodiment 2

[0010] A processing technology for processing a separation layer for vacuum sintered nets. The stainless steel fiber wires after opening are divided into three types, and the wire diameters are φ0.035mm, φ0.056mm, and φ0.071mm. Stainless steel fiber wire, three kinds of stainless steel fiber wire are selected according to the length, the length ratio is 1:2:1, the wire length of each stainless steel fiber wire is processed to 50mm, the three kinds of stainless steel fiber wire are mixed, and selected according to 300 grams per square meter , and evenly spread to both sides of the 0.6 / 0.18 square mesh to form a felt layer; put the laid felt into a vacuum sintering furnace, heat up to 1080°C, and keep it warm for about 4 hours; after slow cooling, roll it to a thickness of about 0.4mm; put 60 % alumina powder suspension, evenly spray on both sides of the stainless steel fiber felt, spray uniformly and consistently (must completely cover the mesh and fiber filaments), spray thickn...

Embodiment 3

[0012] A processing technology for processing a separation layer for vacuum sintered nets. The stainless steel fiber wires after opening are divided into three types, and the wire diameters are φ0.035mm, φ0.056mm, and φ0.071mm. Stainless steel fiber wire, three kinds of stainless steel fiber wire are selected according to the length, the length ratio is 1:1:2, the wire length of each stainless steel fiber wire is processed to 60mm, the three kinds of stainless steel fiber wire are mixed, and selected according to 350 grams per square meter , evenly spread to both sides of the 0.6 / 0.18 square mesh to form a felt layer; put the laid felt into a vacuum sintering furnace, heat up to 1080°C, and keep it warm for about 4 hours; after slow cooling, roll it to a thickness of about 0.5mm; put 60 % alumina powder suspension, evenly spray on both sides of the stainless steel fiber felt, spray uniformly and consistently (must completely cover the mesh and fiber filaments), spray thickness ...

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PUM

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Abstract

The invention discloses a technology for machining a separation layer for machining a vacuum sintering net. According to the technical scheme, loosened stainless steel fibers are evenly laid on the two faces of a square hole net to form a felt layer; the laid felt is placed into a vacuum sintering furnace, and temperature is raised; the felt is rolled to be 0.3-0.5mm thick after being slowly cooled; alumina powder suspension solution is evenly sprayed on the two faces of the stainless steel fiber felt, and the single face spraying thickness is 0.3mm; the felt is dried in a drying oven after being aired; the dried sintered felt is polished smooth and flat with abrasive paper, and leaking filaments, block falling and other defects are repaired, and drying is carried out; the dried sintered net is sintered again, and the temperature rises to 1260 DEG C, and the temperature is kept for 4h. The machining technology is simple, the machined separation layer for machining the vacuum sintered net is good in using effect and long in service life, and the machining efficiency and the product quality of the vacuum sintered net can be effectively promoted.

Description

Technical field: [0001] The invention relates to the processing of vacuum sintered mesh, in particular to a processing technology for processing a separation layer for vacuum sintered mesh. Background technique: [0002] At present, the demand for vacuum sintered mesh in my country is in a stage of steady development, and with the rapid development of petrochemical, pharmaceutical, metallurgical and other industries, my country's demand for metal composite filter materials such as vacuum sintered mesh is also growing rapidly. For a long time, in vacuum sintered In the field of vacuum sintering, sintering in the same furnace is a necessary process in the processing of vacuum sintered mesh, and when processing vacuum sintered mesh, an interlayer needs to be provided between two adjacent layers of sintered mesh in the furnace, and the cost of using the current interlayer is relatively high. High, the service life is very short, and the damage of the interlayer will lead t...

Claims

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Application Information

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IPC IPC(8): B22F3/11
Inventor 梁际欣肖玉安李明学郭正强任俊豪
Owner XINXIANG LIER FILTER TECH