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Method for treating stainless steel surfaces

A surface treatment, stainless steel technology, applied in the direction of metal material coating process, can solve the problems such as unreachable, and achieve the effect of simple operation, detailed and clear process, high purity and quality reliability

Active Publication Date: 2010-12-08
BEIJING SEVENSTAR ELECTRONICS CO LTD
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Problems solved by technology

[0008] The surface treatment of high-clean ultra-high-purity (UHP) stainless steel is actually a series of complicated processes from raw materials to processing to pre-treatment, polishing, post-processing and cleaning packaging. If any step goes wrong, it will not be able to Meet the requirements of high-clean ultra-high-purity (UHP) on stainless steel surfaces

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  • Method for treating stainless steel surfaces
  • Method for treating stainless steel surfaces

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Embodiment

[0052] The present invention will be further described below through specific examples.

[0053] Choose 316L (V / V) or 316L stainless steel material for parts processing, adjust and control the cutting parameters, so that the cutting stress and roughness generated on the surface of the parts are as small as possible, and the finished parts are measured in a non-contact or small contact force way. Qualified; then carry out light decoration, you can choose honing, abrasive grain flow or cotton, wool and abrasive materials to carry out surface decoration, or you can choose chemical method light decoration; then carry out degreasing and decontamination (select special cleaning agent for composite stainless steel) Ultrasonic degreasing, decontamination, do not use strong alkali solution), spraying, rinsing, cleaning must be thorough, ultrasonic cleaning can be used; then electrochemical polishing (EP), electrochemical polishing (EP) is very important, is the stainless steel surface ...

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Abstract

The invention relates to a method for treating stainless steel surfaces, comprising the following steps of: burnishing, degreasing, decontaminating and cleaning the surfaces of stainless steel parts to be treated; carrying out electrochemical polishing to the burnished, degreased, decontaminated and cleaned stainless steel parts; passivating the electrochemically polished stainless steel parts; precisely cleaning the passivated stainless steel parts; purifying, drying and baking the precisely cleaned stainless steel parts; and inspecting the stainless steel parts in a dust-free room and carrying out double-layer anti-static packaging and vacuum sealing to the stainless steel parts. The stainless steel parts treated with the method meet the use requirements of high-end industries comprising semiconductor processing and equipment manufacturing, solar energy, micro-electronics, electric industry, restaurant and food, biological pharmaceutics, medicine and medical treatment, analytical instruments, petrifaction industries, aerospace and the like and completely accord with the regulations of the standards comprising SEMI (Semiconductor Equipment and Materials International), ASTM (American Society for Testing Material) and the like on the high cleanness and ultra-high purity (UHP) of the stainless steel surfaces.

Description

technical field [0001] The invention relates to the technical field of surface treatment of stainless steel, in particular to a method for surface treatment of high-clean ultra-high-purity (UHP) stainless steel. Background technique [0002] At present, the commonly used stainless steel surface treatment methods can be mainly divided into two categories, one is electroplating oxidation, which deposits or generates a layer of film on the surface of stainless steel by electrochemical or chemical methods, the main purpose is decoration or special purposes; the other is polishing , to reduce the roughness of the stainless steel surface by physical, chemical or electrochemical methods, so as to make it flat and bright, and its main purpose is to decorate and look beautiful. Therefore, the above-mentioned treatment methods are often limited to the surface quality of stainless steel and have no other requirements, so the surface treatment methods for the above-mentioned stainless s...

Claims

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Application Information

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IPC IPC(8): C25F3/24C23C22/50C23C22/08C23C22/82
Inventor 方刚祝恒阳王茂林
Owner BEIJING SEVENSTAR ELECTRONICS CO LTD
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