Manufacturing process of metal powder sintered filter elements

A technology of metal powder and sintered filter element, applied in the field of filter element, can solve the problem that the filter element is not resistant to high temperature, and achieve the effect of convenient cleaning

Inactive Publication Date: 2012-08-22
苏州市东方净水器厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a manufacturing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The manufacturing process of copper powder sintered filter element is as follows:

[0021] Step 1) the 40 mesh copper powder of 450g is mixed with the paraffin wax as volatile agent of 25g;

[0022] Step 2) filling the mixture prepared in step 1) into a high-speed steel mold for shaping to obtain a hollow cylindrical shaped filter element;

[0023] Step 3) Put the shaped filter elements into a combustion boiler at 800°C to 900°C for sintering. Each shaped filter element is separated by alumina. During the sintering process, the paraffin volatilizes and forms a pure copper powder sintered filter element. The absolute filtration accuracy is 5 microns to 100 microns.

[0024] The copper powder sintered filter element of the present invention is high temperature resistant and can be used for filtering flue gas at 300°C to 500°C. When filtering, the flue gas enters from the outer surface of the hollow cylindrical filter element and is discharged from the cylinder. The cop...

Embodiment 2

[0026] The manufacturing process of the stainless steel powder sintered filter element is as follows:

[0027] Step 1) the 5 mesh stainless steel powder of 900g is mixed with the paraffin wax as volatile agent of 100g;

[0028] Step 2) filling the mixture prepared in step 1) into a high-speed steel mold for shaping to obtain a hollow cylindrical shaped filter element;

[0029] Step 3) Put the shaped filter elements into a combustion boiler at 800°C to 900°C for sintering, each shaped filter element is separated by alumina, the paraffin volatilizes during the sintering process, and a pure stainless steel powder sintered filter element is formed.

[0030] The stainless steel powder sintered filter element of the invention is resistant to high temperature and high pressure, and can be used as a filter element of a high-pressure oil pump with a temperature range of 600 DEG C to 800 DEG C and a pressure range of 20 kg to 200 kg.

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Abstract

The invention discloses a manufacturing process of metal powder sintered filter elements, which comprises the following steps that: firstly, copper or stainless steel powder with the mass ratio being (90-95): (5-10) is mixed with paraffin which serves as volatile agent; then the mixture is filled into a high-speed steel mould to be formed, and hollow cylindrical formed filter elements are obtained; the formed filter elements are put into a combustion boiler at 800DEG C to 900DEG C to be sintered; the formed filter elements are separated by alumina; during the sintering process, paraffin is volatilized; and pure metal powder sintered filter elements are formed. According to the invention, the metal powder sintered filter elements have the advantage of high temperature resistance, and can be used for filtering high-temperature gas and liquid with the temperature being above 500DEG C.

Description

technical field [0001] The invention relates to a filter element, in particular to a manufacturing process of a metal powder sintered filter element. Background technique [0002] In the prior art, activated carbon is generally used as a filter element to purify some liquids and gases, but activated carbon is not resistant to high temperatures, and currently there is no filter element capable of high temperature resistance and high precision. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the purpose of the present invention is to provide a manufacturing process of a metal powder sintered filter element, which solves the problem that the existing filter element is not resistant to high temperature. [0004] In order to solve the above-mentioned technical problems and achieve the above-mentioned technical purpose, the present invention adopts the following technical solutions: [0005] A manufacturing process of a metal powder si...

Claims

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Application Information

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IPC IPC(8): B22F3/16B01D39/20
Inventor 王雪明
Owner 苏州市东方净水器厂
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