CN113305463A - Process for preventing stainless steel from discoloring during welding - Google Patents
Process for preventing stainless steel from discoloring during welding Download PDFInfo
- Publication number
- CN113305463A CN113305463A CN202110662113.8A CN202110662113A CN113305463A CN 113305463 A CN113305463 A CN 113305463A CN 202110662113 A CN202110662113 A CN 202110662113A CN 113305463 A CN113305463 A CN 113305463A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- steel material
- preventing discoloration
- treatment
- welds
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
- B23K2103/05—Stainless steel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Physical Vapour Deposition (AREA)
Abstract
The invention provides a process for preventing stainless steel from discoloring during welding, which comprises the following steps: s1, placing the stainless steel material in a vacuum chamber for preheating treatment; s2, performing first film coating treatment on the stainless steel material; s3, performing secondary film coating treatment on the stainless steel material; and S4, entering a sheet discharging process. The invention has the beneficial effects that: the process is provided, and the film is plated on the stainless steel material, so that the condition that the stainless steel is discolored due to high temperature during welding is effectively prevented, the appearance of a welded finished product of the product is more attractive, the competitiveness of the product is improved, and the customer acceptance is increased.
Description
Technical Field
The invention relates to the technical field of stainless steel processing, in particular to a process for preventing stainless steel from welding discoloration.
Background
With the increasing processing capacity of mobile phone processors, the heat dissipation of mobile phones is also an important link in the design of mobile phones, and the heat dissipation of mobile phones in early days generally takes graphite as a main material, which is a first generation heat dissipation technology; copper pipe liquid cooling is a second generation heat dissipation technology; the VC soaking plate is the latest third-generation heat dissipation technology and can better take away heat from all directions. VC is (Vapor Chamber) and is formed by welding the peripheries of upper and lower 2 metal plates to form a cavity, vacuumizing the cavity and filling liquid.
The upper and lower 2 metal plates used in the current VC are mainly made of all-copper materials or stainless steel materials. Stainless steel has better intensity compared with pure copper, so the VC made of stainless steel material can be thinner than the VC made of full copper material without reducing the intensity of the product, thus being beneficial to reducing the thickness of the whole product and reducing the production cost of the VC product.
However, VC adopts a brazing method in welding, and the high temperature in welding causes color change on the surface of the stainless steel material, resulting in blackening, bluing, and the like of the appearance.
A new process is needed to prevent discoloration of stainless steel materials during welding.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a process capable of effectively preventing stainless steel materials from discoloring during high-temperature welding.
In order to solve the technical problems, the invention adopts the technical scheme that: a process for preventing discoloration of stainless steel welds, comprising:
s1, placing the stainless steel material in a vacuum chamber for preheating treatment;
s2, performing first film coating treatment on the stainless steel material;
s3, performing secondary film coating treatment on the stainless steel material;
and S4, entering a sheet discharging process.
Further, in step S2, performing a first magnetron sputtering coating process on the stainless steel material by using titanium as a material; in step S3, the stainless steel material is subjected to a second magnetron sputtering coating process using tungsten as a material.
Further, in step S2, performing a first magnetron sputtering coating process on the stainless steel material by using chromium as a material; in step S3, the stainless steel material is subjected to a second magnetron sputtering coating process using tungsten as a material.
Further, in the first plating treatment and the second plating treatment, the plating thickness is at least 50 nm.
Further, magnetron sputtering coating treatment is performed on the stainless steel material by taking copper as a material between the steps S2 and S3.
Further, in the plating treatment of the stainless steel material by adopting the copper metal, the thickness of the plated film is at least 50 nm.
Further, in step S1, the vacuum degree of the vacuum chamber is 3x10-1-5x10-1Pa。
Further, in step S1, the preheating temperature is 150-.
Further, in the steps S2 and S3, the method further includes biasing the stainless steel material, wherein the voltage value of the bias is 90-110V.
Further, in step S4, the vacuum chamber is reduced to atmospheric pressure, and the stainless steel material is cooled to normal temperature by natural cooling.
The invention has the beneficial effects that: the process is provided, and the film is plated on the stainless steel material, so that the condition that the stainless steel is discolored due to high temperature during welding is effectively prevented, the appearance of a welded finished product of the product is more attractive, the competitiveness of the product is improved, and the customer acceptance is increased.
Drawings
The specific process of the present invention is detailed below with reference to the accompanying drawings:
FIG. 1 is a schematic process flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Examples
Referring to fig. 1, a process for preventing discoloration of stainless steel welding includes:
s1, placing the stainless steel material in a vacuum chamber for preheating treatment;
firstly, the stainless steel material is placed in a vacuum chamber, the temperature in the vacuum chamber is increased to 150-.
The vacuum of the vacuum chamber was then reduced to 3x10-1-5x10-1Pa, coating under vacuum condition, which 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, reduce the chemical reaction (such as oxidation) between active molecules in the gas and the coating source material, and reduce the amount of impurities formed by the gas molecules entering the film in the film forming process, thereby providing better compactness, purity, deposition rate and adhesion with the substrate of the film.
S2, performing first film coating treatment on the stainless steel material;
firstly, titanium is taken as a material to carry out first magnetron sputtering coating treatment on a stainless steel material, wherein the thickness of a titanium film is at least 50nm, and similarly, the first magnetron sputtering coating treatment can also be carried out on the stainless steel material by taking chromium as a material, wherein the thickness of a chromium film is at least 50nm, and a layer of titanium film or chromium film is firstly coated on the stainless steel material, so that the binding force between the stainless steel material and other metal films can be increased.
S3, performing secondary film coating treatment on the stainless steel material;
the stainless steel material is subjected to second magnetron sputtering coating treatment by taking tungsten as a material, and a tungsten film is further coated on the titanium film or the chromium film, wherein the thickness of the tungsten film is at least 50nm, and the tungsten film can effectively prevent the stainless steel plate from discoloring under the influence of high temperature during welding.
In order to further enhance the bonding force between the stainless steel material and the tungsten film, after the titanium film or the chromium film is plated, the stainless steel material is subjected to magnetron sputtering film plating treatment by taking copper as a material, and a copper film is plated on the titanium film or the chromium film, wherein the thickness of the copper film is at least 50nm, so that the bonding reliability of the tungsten film is higher.
In order to ensure that the film layer is firmly combined with the base material, a bias voltage is applied to the stainless steel plate, so that an electric field between the stainless steel plate and the magnetron sputtering target material is stronger, and the film coating effect is enhanced, wherein the voltage value of the bias voltage is preferably 90-110V.
And S4, entering a sheet discharging process.
After the film coating process is finished, the vacuum chamber is reduced to atmospheric pressure, the stainless steel material is cooled to normal temperature in a natural cooling mode, and then the sheet discharging process is carried out.
From the above description, the beneficial effects of the present invention are: the process is provided, and the film is plated on the stainless steel material, so that the condition that the stainless steel is discolored due to high temperature during welding is effectively prevented, the appearance of a welded finished product of the product is more attractive, the competitiveness of the product is improved, and the customer acceptance is increased.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A process for preventing discoloration of stainless steel welds, comprising:
s1, placing the stainless steel material in a vacuum chamber for preheating treatment;
s2, performing first film coating treatment on the stainless steel material;
s3, performing secondary film coating treatment on the stainless steel material;
and S4, entering a sheet discharging process.
2. The process for preventing discoloration in stainless steel welds according to claim 1, wherein:
in step S2, performing a first magnetron sputtering coating process on the stainless steel material with titanium as a material;
in step S3, the stainless steel material is subjected to a second magnetron sputtering coating process using tungsten as a material.
3. The process for preventing discoloration in stainless steel welds according to claim 1, wherein:
in step S2, performing a first magnetron sputtering coating process on the stainless steel material with chromium as a material;
in step S3, the stainless steel material is subjected to a second magnetron sputtering coating process using tungsten as a material.
4. A process for preventing discoloration of stainless steel welds as claimed in claim 2 or 3, wherein: in the first plating treatment and the second plating treatment, the plating thickness is at least 50 nm.
5. The process for preventing discoloration in stainless steel welds of claim 4, wherein: and magnetron sputtering coating treatment is carried out on the stainless steel material by taking copper as a material between the steps S2 and S3.
6. The process for preventing discoloration in stainless steel welds of claim 5, wherein: in the plating treatment of the stainless steel material by adopting the copper metal, the plating thickness is at least 50 nm.
7. The process for preventing discoloration in stainless steel welds of claim 6, wherein: in step S1, the vacuum degree of the vacuum chamber is 3x10-1-5x10-1Pa。
8. The process for preventing discoloration of stainless steel welds of claim 7, wherein: in step S1, the preheating temperature is 150-200 ℃.
9. The process for preventing discoloration in stainless steel welds of claim 8, wherein: in step S2 and step S3, the method further comprises the step of biasing the stainless steel material, wherein the voltage value of the bias is 90-110V.
10. The process for preventing discoloration in stainless steel welds of claim 9, wherein: in step S4, the vacuum chamber is reduced to atmospheric pressure, and the stainless steel material is cooled to normal temperature by natural cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110662113.8A CN113305463B (en) | 2021-06-15 | 2021-06-15 | Process for preventing stainless steel from discoloring during welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110662113.8A CN113305463B (en) | 2021-06-15 | 2021-06-15 | Process for preventing stainless steel from discoloring during welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113305463A true CN113305463A (en) | 2021-08-27 |
| CN113305463B CN113305463B (en) | 2022-07-22 |
Family
ID=77378856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110662113.8A Active CN113305463B (en) | 2021-06-15 | 2021-06-15 | Process for preventing stainless steel from discoloring during welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113305463B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05104242A (en) * | 1991-10-18 | 1993-04-27 | Nec Corp | Method for hermetically sealing stainless steel parts |
| CN101768724A (en) * | 2008-12-29 | 2010-07-07 | 中国科学院兰州化学物理研究所 | Method for preparing film on stainless steel |
| CN102534481A (en) * | 2010-12-23 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Coated piece and manufacturing method thereof |
| CN103088307A (en) * | 2009-10-28 | 2013-05-08 | 无锡润鹏复合新材料有限公司 | Method for obtaining a plurality of W-Ti-N films with different W/Ti ratios by one time sputtering |
| CN105369205A (en) * | 2015-10-16 | 2016-03-02 | 常州大学 | Technological method for manufacturing multifunctional film on surface of stainless steel |
| CN108359929A (en) * | 2018-03-30 | 2018-08-03 | 浙江苏泊尔股份有限公司 | A kind of processing method of stainless steel work-piece fastness |
-
2021
- 2021-06-15 CN CN202110662113.8A patent/CN113305463B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05104242A (en) * | 1991-10-18 | 1993-04-27 | Nec Corp | Method for hermetically sealing stainless steel parts |
| CN101768724A (en) * | 2008-12-29 | 2010-07-07 | 中国科学院兰州化学物理研究所 | Method for preparing film on stainless steel |
| CN103088307A (en) * | 2009-10-28 | 2013-05-08 | 无锡润鹏复合新材料有限公司 | Method for obtaining a plurality of W-Ti-N films with different W/Ti ratios by one time sputtering |
| CN102534481A (en) * | 2010-12-23 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Coated piece and manufacturing method thereof |
| CN105369205A (en) * | 2015-10-16 | 2016-03-02 | 常州大学 | Technological method for manufacturing multifunctional film on surface of stainless steel |
| CN108359929A (en) * | 2018-03-30 | 2018-08-03 | 浙江苏泊尔股份有限公司 | A kind of processing method of stainless steel work-piece fastness |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113305463B (en) | 2022-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8298723B2 (en) | Metal separator for fuel cell and manufacturing method thereof | |
| TWI688973B (en) | Conductive substrate | |
| EP2068389A1 (en) | Method for producing separator for fuel cell, separator for fuel cell, and fuel cell | |
| US8231990B2 (en) | Alloy film for a metal separator for a fuel cell, a manufacturing method thereof and a target material for sputtering, as well as a metal separator, and a fuel cell | |
| US20130220805A1 (en) | Sputtering Target-Backing Plate Assembly and Method for Producing Same | |
| TWI630658B (en) | Transparent conductive film and method of manufacturing same | |
| CN113305463B (en) | Process for preventing stainless steel from discoloring during welding | |
| JP5909082B2 (en) | Copper foil for producing graphene and method for producing graphene | |
| JP4134257B2 (en) | Alloy film for metal separator of fuel cell, production method thereof, sputtering target material, metal separator and fuel cell | |
| JP2010045038A (en) | Fuel cell and separator therefor | |
| JP2008311328A (en) | Flexible circuit substrate and manufacturing method thereof | |
| JP2008277287A (en) | Manufacturing method of metallic separator for fuel cell | |
| TWI686292B (en) | Laminate substrate, conductive substrate, method for manufacturing laminate substrate, method for manufacturing conductive substrate | |
| JP5180485B2 (en) | Method for manufacturing fuel cell separator, fuel cell separator and fuel cell | |
| US11149348B2 (en) | Method for manufacturing fuel cell separator | |
| JP6837808B2 (en) | Method of manufacturing a laminate | |
| JP6417964B2 (en) | LAMINATED BOARD, WIRING BOARD AND METHOD FOR PRODUCING THEM | |
| US20060027170A1 (en) | Deposition boat and manufacturing method of organic EL display therewith | |
| CN113068313A (en) | Manufacturing method of circuit board, circuit board manufactured by manufacturing method and electronic equipment | |
| TWI717107B (en) | Layered body | |
| CN115003105A (en) | Vacuum coating's samming board | |
| JP5859885B2 (en) | Metal multilayer film forming method and metal multilayer film forming apparatus | |
| JPS6134507B2 (en) | ||
| JP6932908B2 (en) | Laminated board, conductive board, method of manufacturing laminated board, method of manufacturing conductive board | |
| WO2014128833A1 (en) | Copper foil for graphene production, and graphene production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |