Black coloring process of stainless steel precision screen mesh

A technology of stainless steel wire and stainless steel, which is applied in the field of coloring and blackening of stainless steel, can solve the problems of hole blockage of wire mesh and uneven black color on the surface, and achieve the effect of fine grain, good adhesion and strong corrosion resistance.

Inactive Publication Date: 2015-07-22
安平县千鼎丝网有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the process of blackening the surface of the above-mentioned wire mesh, it is easy to have the disadvantages that the holes of the wire mesh are blocked by impurities and the surface is unevenly blackened.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Install the stainless steel precision wire mesh to be processed on the net unwinding roller set at one end inside the sealed container, and set a net winding roller at the other end inside the sealed container, wind an auxiliary wire mesh on the net winding roller, and put the auxiliary wire The moving end of the net passes through the air-drying room, cleaning room V, neutralization room II, cleaning room IV, blackening room, cleaning room III, neutralization room I, cleaning room II, activation room and cleaning room I in the airtight container. Finally, it is connected with the moving end of the stainless steel precision wire mesh, so that the stainless steel precision wire mesh is in a tensioned state. The cleaning chamber I, the activation chamber, the cleaning chamber II, the neutralization chamber I, the cleaning chamber III, the blackening chamber, the cleaning chamber IV, the neutralization chamber II, and the cleaning chamber V are respectively provided with no...

Embodiment 2～ Embodiment 4

[0034]The blackening process of the stainless steel precision wire mesh in each embodiment of Embodiment 2 to Embodiment 4 is the same as that of Embodiment 1, and will not be repeated here. The process parameter of embodiment 2~embodiment 4 and the prescription of solution used are as shown in the table below:

[0035] .

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PUM

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Abstract

The invention discloses a black coloring process of a stainless steel precision screen mesh, and the black coloring process comprises the following step of: sequentially carrying out cleaning, activating and blackening processing on the weaved stainless steel precision screen mesh in the presence of a sealed container, wherein the blackening processing is as follows: spraying a vaporous blackening agent to a tensioning stainless steel precision screen mesh, applying voltage on the tensioning stainless steel precision screen mesh, so that the potential difference of the tensioning stainless steel precision screen mesh and the sprayed vaporous blackening agent is formed and arc discharge is generated, reacting the stainless steel wire of the stainless steel precision screen mesh with the blackening agent, and forming an ultrathin blackening layer on the surface of the stainless steel wire.The blackening layer obtained on the surface of the stainless steel precision screen mesh has the advantages of uniformity, densification and good adhesive force and cannot generate interference on the aperture of the stainless steel precision screen mesh by being extremely thin; and the black coloring process disclosed by the invention has the advantages of simplicity and fast deposition of the blackening layer, meets the requirement for environmental protection as the blackening agent does not contain the elements, such as selenium, phosphorus, chromium, and the like which pollute the environment, is nontoxic and can be directly discharged, and is lower in preparation cost.

Description

technical field [0001] The invention relates to a coloring and blackening method of stainless steel, in particular to a blackening process of a stainless steel precision wire mesh used for electromagnetic shielding. Background technique [0002] In recent years, with the wide application and rapid increase in the number of electronic and electrical equipment in various fields, electromagnetic wave pollution has become the fourth largest pollution source after air pollution, water pollution, and noise pollution, and is considered to be the "invisible killer" of human health. ". Electromagnetic wave pollution not only endangers human health, but also affects the normal operation of various electronic equipment due to the interference of electromagnetic waves. [0003] In order to isolate electromagnetic pollution and eliminate electromagnetic interference, electromagnetic shielding has become an effective measure. Electromagnetic shielding is to eliminate or suppress the int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/34
Inventor 李占洲刘彦辉
Owner 安平县千鼎丝网有限公司
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