A process for preventing discoloration of stainless steel welding

A technology of stainless steel and craftsmanship, which is applied in the field of preventing discoloration of stainless steel welding. It can solve the problems of black appearance, discoloration and bluishness of the surface of stainless steel materials, and achieve the effect of beautiful appearance, increasing recognition and improving competitiveness.

Active Publication Date: 2022-07-22
广东谛思纳为新材料科技有限公司
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Problems solved by technology

[0004] However, VC adopts brazing method when welding, and the high temperature during welding will cause color change on the surface of stainless steel material, resulting in black and blue appearance.

Method used

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  • A process for preventing discoloration of stainless steel welding

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Embodiment

[0031] see figure 1 , a process to prevent discoloration of stainless steel welding, including:

[0032] S1. Place the stainless steel material in a vacuum chamber for preheating;

[0033] Firstly, the stainless steel material is placed in a vacuum chamber, and the problem in the vacuum chamber is raised to 150-200 degrees Celsius, which can effectively remove the moisture of the substrate and improve the adhesion between the film layer and the substrate.

[0034] Then reduce the vacuum of the vacuum chamber to 3x10 -1 -5x10 -1 Pa, coating under vacuum conditions can reduce the collision of atoms and molecules of the coating source material with gas molecules in the process of flying to the coating target, and reduce the chemical reaction between the active molecules in the gas and the coating source material (such as oxidation, etc.) , and reduce the amount of gas molecules entering the film to become impurities during the film formation process, thereby providing better f...

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Abstract

The invention provides a process for preventing discoloration of stainless steel welding, which includes: S1, placing the stainless steel material in a vacuum chamber for preheating treatment; S2, performing a first coating treatment on the stainless steel material; S3, performing a second time on the stainless steel material Coating treatment; S4, enter the sheet-out process. The beneficial effects of the invention are as follows: a process is provided. By coating the stainless steel material, the discoloration of the stainless steel due to high temperature during welding is effectively prevented, the appearance of the finished product after welding is more beautiful, and the quality of the product is improved. Competitiveness and increased customer recognition.

Description

technical field [0001] The invention relates to the technical field of stainless steel processing, in particular to a process for preventing discoloration in stainless steel welding. Background technique [0002] With the increasing processing capacity of mobile phone processors, mobile phone heat dissipation has also become an important part of mobile phone design. In the early days, graphite was generally used as the main material for heat dissipation, which was the first generation of heat dissipation technology; copper tube liquid cooling was the second generation of heat dissipation technology; The VC vapor chamber is the latest third-generation heat dissipation technology, which can better remove heat from all directions. VC is the abbreviation of (VaporChamber), and its structure is formed by welding the upper and lower two metal plates around the interior to form a cavity, vacuuming the cavity and filling it with liquid. [0003] At present, the upper and lower two ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/02B23K37/00
CPCB23K31/02B23K37/00B23K2103/05
Inventor 邵海平刘莉云曹英朝
Owner 广东谛思纳为新材料科技有限公司
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