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CO2 gas-shielded solid-core welding wire coateds graphite coating on its surface and its manufacturing method

A technology of solid welding wire and graphite coating, applied in the direction of manufacturing tools, welding media, welding equipment, etc., can solve problems such as polluting the environment, affecting welding quality, and increasing smoke

Inactive Publication Date: 2005-12-21
SHANXI WEIERDE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the copper plating layer is an unfavorable factor affecting the welding quality
It increases fumes during welding and pollutes the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific example 1

[0043] Graphite (solid content 25%) 20Kg

[0044] Deionized water 69.74Kg

[0045] Sodium hexametaphosphate 0.35Kg

[0046] Lithium hydroxide (20% solid content) 0.55kg

[0047] Add in the 150L preparation tank in order, after mixing and dispersing for 80 minutes under the rotating speed of 1200rpm with a disperser, silicic acid sol (solid content 20%) 2.75kg hydroxypropyl cellulose 0.55kg, dimethylethanolamine 0.09kg, octanoic acid Add 0.09kg in the preparation tank, mix and disperse at 1200rpm with a disperser for 150 minutes, pass the mixed and dispersed suspension through a 1000 mesh sieve, and put the finished product in a plastic barrel (20 liters / barrel), sealed for storage.

[0048] Above total solid 6.98kg, wherein graphite 5kg accounts for 71.64%.

[0049] Graphite-based coating composition concrete example 2

[0050] Graphite (solid content 25%) 50kg

[0051] Deionized water 30.56kg

[0052] β-naphthalenesulfonate sodium formaldehyde condensate 0.8kg

[0053]...

specific example 3

[0057] Ordinary graphite (solid content 25%) 80kg

[0058] Deionized water 4.9kg

[0059] Lignin 1.2kg

[0060] Dimethylethanolamine (solid content 20%) 2kg

[0061]Add it into a 150L preparation tank in order, mix and disperse for 70 minutes at a speed of 800 rpm with a disperser, add 2kg of lithium water glass, 1.2kg of sodium polyvinyl alcohol, 0.35kg of benzotriazole, and 0.35kg of octanoic acid to prepare tank, mix and disperse for 180 minutes at 800rpm with a disperser, sieve and pack.

[0062] Above total solid 27.1kg, graphite 20kg accounts for 73.8%.

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Abstract

The invention relates to the solid solder which is protected by the carbon dioxide and the manufacture method. The exterior of the solder has the graphite dope. Its characteristic is that on the solid solder there is the dope of nm grade's graphite group. The production method is that it adopts the drawing way to execute the solder. Firstly, use the electrolyted alkali to wash the solder, then take turns as the water, the electrolysed acid and the water. As the above task steps, after eliminating the lube film which the solder adsorbed in the drawing process, make the solder smeared or sprinkled by the graphite group. Its technical flow is setting the line, washing with the electrolysed alkali, washing with the water, washing with the electrolysed acid, washing with the water, smearing or sprinkling with the graphite group, drying, receiving the line and tie by the layer. The graphite is provided with the function such as conducting the electricity, defending the rust, lubricating and so on. The above solder which can enhance the quality of the welding line is the solder of the environmental protection.

Description

technical field [0001] The invention belongs to welding wire and welding wire production technology, in particular to a CO 2 Gas-shielded solid welding wire and manufacturing method thereof. Background technique [0002] Used in the welding of structural parts in shipbuilding, boiler and automobile manufacturing industries, the welding cost of submerged arc welding wire and carbon dioxide gas shielded solid wire is low, and it is easy to realize automatic welding. product. The surface of these solid wires is protected with a copper plating. The function of the copper plating layer is first to prevent the welding wire from rusting, and then to ensure that the welding wire has good lubricity and conductivity during use. However, the copper-plated layer on the surface of the welding wire can increase the copper content in the deposited metal during the welding process and change the structure of the weld. We all know that copper is a harmful element for the structure and mec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/36
Inventor 戚其训马骥苏云何明威宋秉让
Owner SHANXI WEIERDE IND
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