Coating for copper-plating-free welding wire and application thereof

A technology without copper plating and welding wire, used in welding/cutting media/materials, welding media, welding equipment, etc., can solve the problem of coating thickness instability, reduce spatter, good bonding, and improve wire feeding performance effect

Inactive Publication Date: 2017-11-07
KUNSHAN MCC BAOSTEEL WELDING CONSUMABLES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This creates instability in the coating thickness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A copper-free welding wire with a paint coating on the surface:

[0041] The raw material components and parts by weight of the paint coating are: 40 parts of acrylic resin emulsion, 10 parts of graphene, 19 parts of nano-titanium dioxide, 2 parts of calcium stearate, 2 parts of polyethylene glycol 200 dispersant, polyether 1 part of modified polyorganosiloxane type wetting agent, 1 part of Y-685 polysiloxane type defoamer, 25 parts of water.

[0042] The preparation method is as follows: (1) Preparation of the bottom coating: mix evenly 70% of the total amount of acrylic resin emulsion and 50% of the total amount of water, add a dispersant, a wetting agent and a defoamer, stir evenly, and then add Graphene, nano-titanium dioxide and calcium stearate were stirred and ground for 3 hours to form a mixture. The dispersed particles of the mixture were less than 5 μm and kept standing for 24 hours without delamination or flocculation. The viscosity of the paint tested by the...

Embodiment 2

[0047] A copper-free welding wire coated with a rust-resistant topcoat and a painted primer:

[0048] The raw materials and parts by weight of the paint primer: 30 parts of acrylic resin emulsion, 10 parts of graphene, 15 parts of nano-titanium dioxide, 2 parts of calcium stearate, 2 parts of polyethylene glycol 200 dispersant, polyether modified polyorganosiloxane type 1 part of wetting agent, 1 part of Y-685 polysiloxane type defoamer, 39 parts of water.

[0049] Anti-rust surface layer raw materials and parts by weight: 95 parts of basic anti-rust oil, 5 parts of lanolin magnesium soap.

[0050] The preparation method is:

[0051] (1) Preparation of bottom coating: Mix 70% of the total amount of acrylic resin emulsion and 50% of the total amount of water evenly, add dispersant, wetting agent and defoamer, after stirring evenly, add graphene, nano Titanium dioxide and calcium stearate, stirred and ground for 3 hours to form a mixture, the dispersed particles of the mixture...

Embodiment 3

[0061] A copper-free welding wire coated with a rust-resistant topcoat and a painted primer:

[0062] Bottom layer raw materials and parts by weight: 40 parts of acrylic resin emulsion, 7 parts of graphene, 10 parts of nano-titanium dioxide, 4 parts of calcium stearate, 3 parts of polyol type dispersant, GOLDEN EM-193 polyether modified polyorganosiloxane 2 parts of wetting agent, 2 parts of Y-625 polysiloxane type defoamer, 32 parts of water.

[0063] Antirust surface layer raw materials and parts by weight: 93 parts of basic antirust oil, 7 parts of lanolin magnesium soap.

[0064] The preparation method is:

[0065] (1) Preparation of bottom coating: Mix 70% of the total amount of acrylic resin emulsion and 50% of the total amount of water evenly, add dispersant, wetting agent and defoamer, after stirring evenly, add graphene, nano Titanium dioxide and calcium stearate, stirred and ground for 3 hours to form a mixture, the dispersed particles of the mixture are less than ...

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Abstract

The invention provides coating for a copper-plating-free welding wire and application thereof and belongs to the field of copper-plating-free welding wires. The coating comprises the following raw materials of, by weight, 30-40 parts of acrylic resin emulsion, 5-10 parts of grapheme, 10-20 parts of nano titanium dioxide, 2-5 parts of calcium stearate, 2-3 parts of a dispersing agent, 1-2 parts of a wetting agent, 1-2 parts of a defoaming agent and 25-40 parts of water. According to the coating for the copper-plating-free welding wire, a coated layer can be formed on the surface of the welding wire, and according to the prepared welding wire, abrasion of an existing copper-plating-free welding wire to a current contact nozzle can be greatly reduced, and the wire feeding performance of the welding wire in the using process can be improved. A uniform and thickness-controllable protective film can be formed on the surface of the copper-plating-free welding wire, the surface of the welding wire is smooth, and the problems of unsmooth wire feeding, harsh electric arc sound, splashing, lots of air holes and the like are prevented.

Description

technical field [0001] The invention relates to the field of copper-free welding wire, in particular to a coating for copper-free welding wire and its application. Background technique [0002] It is the current development trend that copper-free welding wire replaces copper-coated welding wire. With the increasing application of copper-free welding wire in the market in recent years, the production process of copper-free welding wire has gradually formed a "drawing" mode from the original chaotic mode. - Cleaning - Coating" production process mode. In terms of coating, due to the different coating formulas and coating methods of various manufacturers, the processability of the gas-protected copper-free welding wire varies greatly, mainly in the following: the copper-free welding wire conducts electricity during use The difference in the severity of mouth wear, the difference in conductivity and antirust performance. However, the biggest use problem of domestic copper-free...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/365
Inventor 贾军王文龙李开添常云琪闫振王德广
Owner KUNSHAN MCC BAOSTEEL WELDING CONSUMABLES
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