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Shielding welding wire and production method thereof

A gas shielded welding and wire drawing technology, used in welding media, welding equipment, welding/cutting media/materials, etc., can solve the problem of not being able to reduce spatter, and achieve the effects of not easy deformation, welding wire quality assurance, and oxidation prevention.

Inactive Publication Date: 2015-09-23
贵州凯宏汇达冷却系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the above-mentioned prior art is still not able to reduce the spatter in the welding process to the minimum. For this reason, this researcher combined years of exploration experience to limit the mass percentage of the chemical composition of the raw materials in the welding wire preparation process, and combined with the The selection and combination of shielding gas in the welding process improves the flying sword rate of the welding wire in the welding process, and improves the compressive and tensile strength of the welding wire, thereby providing a new era for the field of gas shielded welding wire technology. a new way of thinking

Method used

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  • Shielding welding wire and production method thereof
  • Shielding welding wire and production method thereof

Examples

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Effect test

Embodiment 1

[0029] A gas shielded welding wire, the mass percentage of the chemical composition of its raw materials is: C: 0.01%, Si: 1.3%, Mn: 1.1%, Ti: 2.1%, S: 0.009%, Al: 0.23%, P≤0.004 %, B: 0.003%, V: 0.001%, and the balance is iron and unnecessary impurities.

[0030] The chemical composition of the raw materials also includes Cr, and its mass percentage is 0.0002%.

[0031] The chemical composition of the raw materials also includes Cu, and its mass percentage is 0.02%.

[0032]When it is applied to welding, the protective gas used is a mixed gas of carbon dioxide gas and argon gas, wherein the volume percentage of carbon dioxide gas in the mixed gas is 91.3%.

[0033] The above-mentioned preparation method of gas-shielded welding wire includes the steps of smelting, rolling, wire drawing, copper plating, and wire coiling. During the smelting process, a vacuum furnace is used for vacuum smelting treatment, and the vacuum degree is 0.3 MPa.

[0034] The rolling is carried out at...

Embodiment 2

[0040] A gas shielded welding wire, the mass percentage of the chemical composition of its raw materials is: C: 0.02%, Si: 1.2%, Mn: 1.3%, Ti: 1.9%, S: 0.01%, Al: 0.25%, P≤0.009 %, B: 0.006%, V: 0.0009%, and the balance is iron and unnecessary impurities.

[0041] The chemical composition of the raw materials also includes Cr, and its mass percentage is 0.0003%.

[0042] The chemical composition of the raw materials also includes Cu, and its mass percentage is 0.03%.

[0043] When it is applied to welding, the protective gas used is a mixed gas of carbon dioxide gas and argon gas, wherein the volume percentage of carbon dioxide gas in the mixed gas is 98.17%.

[0044] The above gas-shielded welding wire preparation method includes the steps of smelting, rolling, wire drawing, copper plating, and wire coiling. During the smelting process, a vacuum furnace is used for vacuum smelting treatment, and the vacuum degree is 0.8 MPa.

[0045] The rolling is carried out at a temperat...

Embodiment 3

[0051] A gas shielded welding wire, the mass percent of the chemical composition of its raw materials is: C: 0.025%, Si: 1.2%, Mn: 1.7%, Ti: 1.5%, S: 0.011%, Al: 0.26%, P≤0.008 %, B: 0.006%, V: 0.0008%, and the balance is iron and unnecessary impurities.

[0052] The chemical composition of the raw materials also includes Cr, and its mass percentage is 0.0001%.

[0053] The chemical composition of the raw materials also includes Cu, and its mass percentage is 0.01%.

[0054] When it is applied to welding, the protective gas used is a mixed gas of carbon dioxide gas and argon gas, wherein the volume percentage of carbon dioxide gas in the mixed gas is 95.73%.

[0055] The above gas-shielded welding wire preparation method includes the steps of smelting, rolling, wire drawing, copper plating, and wire coiling. During the smelting process, a vacuum furnace is used for vacuum smelting treatment, and the vacuum degree is 0.5 MPa.

[0056] The rolling is carried out at a temperatu...

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Abstract

The invention relates to the technical field of shielding welding wire, in particular to a shielding welding wire and a production method thereof. The mass percentages of chemical components of raw materials of the shielding welding wire are 0.01 to 0.04 percent of carbon, 1.2 to 1 percents of silicon, 1.1 to 2.1 percents of manganese, 1.0 to 2.1 percents of titanium, 0.009 to 0.013 percent of sulfur, 0.23 to 0.31 percent of aluminum, no more than 0.013 percent of phosphorus, 0.003 to 0.01 percent of boron, 0.0005 to 0.001 percent of vanadium, and the remains are iron ad unnecessary impurities. Through reasonable element match design, the prepared welding wire is high in splitting strength, the splitting strength reaches 540 MPa, the shock-resistance work of the welding wire reaches 606190 KV 2 J under the environment of 40 DEG C below zero, and the spatter lose rate in the welding process is reduced to below 2 percents.

Description

technical field [0001] The invention relates to the technical field of gas shielded welding wire, in particular to a gas shielded welding wire and a production method thereof. Background technique [0002] CO2 gas shielded welding has low cost and high efficiency, and is widely used in the welding of steel structures. Since CO2 gas is heavier than air, the CO2 gas ejected from the nozzle can form an effective protective layer in the arc area, preventing air from entering the molten pool and avoiding the adverse effects of oxygen and other gases in the air. The welding wire is continuously fed through the wire feeding roller, and an arc is generated between the workpiece and the arc. Under the action of the arc heat, the welding wire and the workpiece are melted to form a molten pool. As the torch is moved, the molten pool solidifies to form a weld. The price of carbon dioxide shielding gas is low, and the welding seam is well formed when short-circuit transition is used, a...

Claims

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Application Information

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IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/3073B23K35/40
Inventor 刘小军付伟张德远李强郭寅斌
Owner 贵州凯宏汇达冷却系统有限公司
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