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Active coating welding wire for carbon dioxide gas arc welding and preparation method thereof

A technology of gas shielded welding and active coating, which is applied to welding equipment, welding equipment, arc welding equipment, etc., and can solve the problems of low viscosity and non-stickiness

Inactive Publication Date: 2013-03-13
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the added metal and non-metallic components have no or little viscosity, which is not conducive to coating on the smooth wire surface

Method used

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  • Active coating welding wire for carbon dioxide gas arc welding and preparation method thereof
  • Active coating welding wire for carbon dioxide gas arc welding and preparation method thereof
  • Active coating welding wire for carbon dioxide gas arc welding and preparation method thereof

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Embodiment Construction

[0021] The technical solutions of the present invention will be further described below in conjunction with specific embodiments. Since the commonly used carbon dioxide gas shielded welding wire is generally Φ1.2-1.6mm in diameter, the present invention uses a drawing process to pull it to Φ1.2-1.6mm, but the present invention is not limited thereto. A commercially available Φ5.5mm H08 carbon steel wire rod is used.

[0022] The Φ5.5mm H08 wire rod is peeled off and rusted, and at the two ends of the horizontal diameter direction and the vertical diameter direction of the cross section of the welding wire, a continuous V-shaped groove is processed along the length direction on the circumferential surface of the welding wire by a scoring knife. Where α is the opening angle of the V-shaped notch 60°, and H is the depth of the V-shaped notch 0.8mm.

[0023] On the surface of the above-mentioned metal wire, the surface of the above-mentioned metal wire is uniformly coated with a ...

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Abstract

The invention discloses an active coating welding wire for carbon dioxide gas arc welding and a preparation method thereof. A wire rod is scored in a horizontal direction and a vertical direction, then the wire rod passes through a wire drawing die added with an active agent, the active agent is compounded with the wire rod, and the wire rod is enable to reaches the corresponding required size through drawing. The active coating welding wire and the preparation method have the advantages that H08A steel is used as the main raw material of the welding wire, so the manufacture cost is low; the production process is simple; and the surface of the welding wire is added with the active agent, so the conductivity and the wire feeding stability are ensured, meanwhile, the forming of weld joints is ensurimproved, the spattering of the welding wire in the welding process is reduced, and the forming effect is good.

Description

technical field [0001] The invention belongs to the field of welding in material processing engineering, and more specifically relates to an active coated welding wire used for carbon dioxide gas shielded welding and a preparation method thereof. Background technique [0002] With the introduction of automatic welding systems, welding wires for carbon dioxide shielded welding have been widely used. However, there are also obvious deficiencies in carbon dioxide gas shielded welding, mainly manifested in large spatter, poor arc stability and more air hole inclusions during the welding process. This is mainly because in the molten pool of carbon dioxide gas shielded welding, oxygen can be limitedly dissolved in iron, and can also react with iron to form oxides. The oxides will react with carbon in the steel to form carbon monoxide, which will produce pores in the weld , thereby affecting the toughness and strength of the weld. In the welding process, in order to prevent the h...

Claims

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Application Information

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IPC IPC(8): B23K35/12B23K35/362B23K35/40B23K9/16
Inventor 王惜宝王鑫
Owner TIANJIN UNIV
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