Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of electroplating method and welding method for metal coating difficult to realize structure

A metal coating and coating technology, applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve problems such as uneven coating, achieve the effects of optimizing process parameters, improving coating quality, and promoting conductivity balance

Active Publication Date: 2022-07-29
CAPITAL AEROSPACE MACHINERY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies in the prior art, the present inventor has carried out intensive research and provided a kind of electroplating method and welding method aimed at the difficult realization structure of the metal coating, which can solve the problem of the coating on the surface of the metal parts before brazing due to the edge effect. Uniform, and the metal coating in metal parts is difficult to realize the technical problem of extremely thin structural coating or no coating, so as to ensure the quality of brazing, thus completing the present invention

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of electroplating method and welding method for metal coating difficult to realize structure
  • A kind of electroplating method and welding method for metal coating difficult to realize structure
  • A kind of electroplating method and welding method for metal coating difficult to realize structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Embodiment 1

[0072] like Image 6 As shown in the figure, the aluminum alloy flange has a narrow and deep groove with an inner diameter of Ф70, and the aspect ratio is 3:1. The aluminum alloy flange narrow and deep groove is plated with copper and then filled with tin, and brazed with the stainless steel bellows with tin after nickel plating. Assembly, as a narrow and deep groove where the brazing seam is located, the thickness and uniformity of copper plating directly affect the effect of hanging tin and the effect of subsequent brazing.

[0073] The copper plating method for the narrow and deep groove of the aluminum alloy flange and the brazing method after copper plating are as follows:

[0074] (1) Mount the electrode

[0075] 1.1 Parts cleaning:

[0076] Oil stain cleaning on the surface of electroplated metal parts: acetone for oil stain cleaning;

[0077] Mechanical cleaning of oxides on the surface of electroplated metal parts: mechanical cleaning with sandpaper;

[0078] Chem...

Embodiment 2

[0100] like figure 2 Shown, copper plated aluminum impeller with turbine-like curved structure on the engine. The copper plating method of this impeller is as follows:

[0101] (1) Mount the electrode

[0102] 1.1 Parts cleaning:

[0103] Oil stain cleaning on the surface of electroplated metal parts: acetone for oil stain cleaning;

[0104] Mechanical cleaning of oxides on the surface of electroplated metal parts: mechanical cleaning with sandpaper;

[0105] Chemical treatment of the surface of the parts to be plated: such as chemical treatment with oxalic acid.

[0106] 1.2 Place the impeller in the electroplating tank and connect it with the cathode in the electroplating tank;

[0107] 1.3 According to the structural characteristics of the impeller, a circular directional conductive member made of pure copper material is made, and the diameter of the directional conductive member is between the inner diameter and the outer diameter of the ring formed by the turbine-sh...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides an electroplating method and a welding method aiming at the difficult-to-implement structure of metal plating, comprising: step 1, placing a metal part to be plated in an electroplating tank, and connecting it with a cathode in the electroplating tank, and the metal part to be plated has a narrow Deep groove or special-shaped curved surface structure; Step 2, according to the structural characteristics of the metal parts to be plated, the directional conductive parts are made, and the directional conductive parts are placed between the anode of the electroplating tank and the metal parts to be plated and close to the narrow deep groove or special-shaped metal parts to be plated For the curved surface structure, the directional conductive member is connected to the cathode of the electroplating tank; in step 3, the conductive device connecting the power source, the anode, the cathode, the metal parts to be plated and the directional conductive member is connected to perform electroplating. The electroplating method and welding method of the present invention can solve the technical problems of uneven coating on the surface of metal parts before brazing due to edge effects, and the technical problems that the metal coating in the metal parts is difficult to achieve extremely thin structural coating or no coating, and ensure the quality of brazing.

Description

technical field [0001] The invention belongs to the technical field of welding, and in particular relates to an electroplating method and a welding method for a difficult-to-implement structure of a metal coating. Background technique [0002] Metal brazed structures have important applications in aerospace, transportation, telecommunication engineering, defense and other industrial sectors. In order to ensure the application performance of the product, the post-plating brazing process of metal parts is adopted, and the engineering application is realized. However, there has always been a weak link in the quality stability of the brazing seam. Among them, the metal coating before brazing is difficult to achieve the coating quality of the structure, which is an important factor causing the unstable quality of the brazing seam. [0003] For a long time, a lot of research work has been done at home and abroad in improving the quality of electroplating coatings for structures ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C25D7/00C25D5/48C25D5/18C25D5/44B23K1/008
CPCC25D7/00C25D5/48C25D5/18C25D5/44B23K1/008
Inventor 高凤林杨海鑫成志富赵衍华孔兆财高竹青范成荣李文武洪园马丽翠
Owner CAPITAL AEROSPACE MACHINERY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com