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A kind of protective agent for welding metal and preparation method thereof

A welding metal and protective agent technology, applied in welding equipment, metal processing equipment, welding medium, etc., can solve the problems of increasing manpower, material and financial resources, increasing difficulty of engineering construction, increasing engineering cost, etc., to achieve environmental protection and easy operation , Improve the effect of scratch resistance and corrosion resistance

Active Publication Date: 2021-02-09
NANJING ROBOTICS RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to make an argon chamber on the back of the weld to fill it with argon, but in actual engineering, as the length of the workpiece increases, the length of the weld will also increase accordingly, so the size of the argon chamber required It will also increase and increase accordingly, which increases a lot of manpower, material resources and financial resources in the welding process, improves the project cost, and also increases the difficulty of project construction.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A protective agent for welding metals, comprising the following raw material components in parts by weight:

[0031] 10 parts of sodium silicate;

[0032] 15 parts of aqueous silicate solution;

[0033] 10 parts of nitrocellulose;

[0034] 15 parts of organic solvent;

[0035] 5 parts curing agent;

[0036] 5 parts of high molecular polymer;

[0037] 10 parts of film-forming resin;

[0038] The balance is deionized water.

[0039] Wherein, the organic solvent in this embodiment is selected from one or more of alcohols, sulfoxides, sulfones, imidazolidinones, pyrrolidones, imidazolidinones, amides and alcohol ethers; the film-forming resin is selected from polyurethane resins, polyurethane One or more of resin or vinyl resin; polymers include one or more of polyacrylic acid, polymaleic anhydride, polymaleic acid acrylic acid copolymer, hydroxypropyl acrylate copolymer Mixture; curing agent is sodium fluorosilicate.

[0040] The present invention also provides a m...

Embodiment 2

[0046] This embodiment discloses a protective agent for welding metals, comprising the following raw material components in parts by weight:

[0047] 10-20 parts of sodium silicate;

[0048] 15-35 parts of aqueous silicate solution;

[0049] 10-15 parts of nitrocellulose;

[0050] 15-25 parts of organic solvent;

[0051] 5-10 parts of curing agent;

[0052] 5-10 parts of high molecular polymer;

[0053] 10-15 parts of film-forming resin;

[0054] The balance is deionized water.

[0055] Wherein, the organic solvent in this embodiment is selected from one or more of alcohols, sulfoxides, sulfones, imidazolidinones, pyrrolidones, imidazolidinones, amides and alcohol ethers; the film-forming resin is selected from polyurethane resins, polyurethane One or more of resin or vinyl resin; polymers include one or more of polyacrylic acid, polymaleic anhydride, polymaleic acid acrylic acid copolymer, hydroxypropyl acrylate copolymer Mixture; curing agent is sodium fluorosilicate....

Embodiment 3

[0062] This embodiment discloses a protective agent for welding metals, comprising the following raw material components in parts by weight:

[0063] 15 parts of sodium silicate;

[0064] 20 parts of aqueous silicate solution;

[0065] 10 parts of nitrocellulose;

[0066] 20 parts of organic solvent;

[0067] 5 parts curing agent;

[0068] 10 parts of high molecular polymer;

[0069] 10 parts of film-forming resin;

[0070] The balance is deionized water.

[0071] Wherein, the organic solvent in this embodiment is selected from one or more of alcohols, sulfoxides, sulfones, imidazolidinones, pyrrolidones, imidazolidinones, amides and alcohol ethers; the film-forming resin is selected from polyurethane resins, polyurethane One or more of resin or vinyl resin; polymers include one or more of polyacrylic acid, polymaleic anhydride, polymaleic acid acrylic acid copolymer, hydroxypropyl acrylate copolymer Mixture; curing agent is sodium fluorosilicate.

[0072] The present in...

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PUM

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Abstract

The invention provides a protective agent for welding metal and preparation method thereof. The protective agent is prepared from, by weight, 10-20 parts of sodium silicate, 15-35 parts of aqueous silicate solution, 10-15 parts of nitrocellulose, 15-25 parts of organic solvents, 5-10 parts of curing agents, 5-10 parts of macromolecule polymers, 10-15 parts of film-forming resins, and the balance is residual deionized water. According to the protective agent for welding the metal and preparation method thereof, the bonding performance of the protective agent with the metal, potting sealing materials and support materials can be improved, and a metal reflective layer can be protected against the erosion of harmful substances such as sulfides and oxides in the environment for a long time; andby applying welding protective agent on the back face of a thin-walled stainless steel weld seam before welding on the front face, both sides of the weld seam are smooth and the welded seam shaping is perfect without welding defects such as welding nodules and welding slag.

Description

technical field [0001] The invention relates to the technical field of welding materials, in particular, the invention relates to a protective agent for welding metal and a preparation method thereof. Background technique [0002] With the rapid development of metal smelting technology, stainless steel has been widely used in various fields such as industry, food, chemical medicine, home decoration, etc. In engineering construction, welding stainless steel is a common process method. At present, manual arc welding and submerged arc automatic welding are generally used for welding stainless steel thick plates, and HJ260 special stainless steel flux (mainly composed of SiO2, CaF2, MnO) is used for submerged arc automatic welding. For welding of thin-walled stainless steel (δ ≤ 2mm), manual argon tungsten arc welding is generally used for single-sided welding and double-sided forming. During the welding process of thin-walled stainless steel, in order to prevent the surface o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/362
Inventor 王拴绪王栓林欧卫婷薛超景岩
Owner NANJING ROBOTICS RES INST CO LTD