Full-automatic welding method for metal powder-cored wire pipeline girth welding joints

A fully automatic welding and metal powder core technology, which is applied in welding equipment, metal processing equipment, tubular objects, etc., to achieve the effect of beautiful welding shape, stable and reliable welding quality, and improved deposition efficiency and welding speed

Inactive Publication Date: 2016-05-18
廊坊市管道人机械设备有限公司
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  • Abstract
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Problems solved by technology

[0007] The problem to be solved by the present invention is to provide a method for fully automatic welding of metal powder cored wire pipe girth welds that is not prone to unfused sidewall defects and is highly efficient and environmentally friendly

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  • Full-automatic welding method for metal powder-cored wire pipeline girth welding joints
  • Full-automatic welding method for metal powder-cored wire pipeline girth welding joints
  • Full-automatic welding method for metal powder-cored wire pipeline girth welding joints

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] The invention discloses a method for fully automatic welding of metal powder cored wire pipeline girth welds, which comprises the following steps:

[0030] S1: Processing the groove;

[0031] S2: Pretreat the nozzle;

[0032] S3: Metal powder cored welding wire is used for root welding, hot welding, filling and cover welding, of which:

[0033] Root layer welding method M1 includes welding according to root layer welding parameters,

[0034] The method M2 of heat welding layer welding includes welding according to the welding parameters of the heat welding layer,

[0035] Filling layer welding method M3 includes welding according to the filling layer welding parameters,

[0036] The method M4 of capping layer welding includes welding according to capping layer welding parameters.

[0037] In the automatic welding process, the arc length of the welding arc...

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Abstract

The invention discloses a full-automatic welding method for metal powder-cored wire pipeline girth welding joints. The full-automatic welding method is characterized by comprising the following steps: S1, grooves are machined; S2, pipe openings are pretreated; S3, root welding layer welding, hot welding layer welding, packing layer welding and cover surface welding are performed by adopting metal powder-cored wires, wherein the method M1 for root welding layer welding comprises the step of welding according to root welding layer welding parameters; the method M2 for hot welding layer welding comprises the step of welding according to hot welding layer welding parameters; the method M3 for packing layer welding comprises the step of welding according to packing layer welding parameters; and the method M4 for cover surface welding comprises the step of welding according to cover surface welding parameters. By adopting the full-automatic welding method for metal powder-cored wire pipeline girth welding joints, during welding of pipelines, the detect that side walls are not fused is not easily caused; and the method is high-efficient and environment-friendly.

Description

technical field [0001] The invention relates to a welding process, in particular to a method for fully automatic welding of metal powder cored wire pipeline girth welds. Background technique [0002] Regarding the technology of metal powder cored wire pipeline girth welding, there are the following relatively close existing technologies: [0003] 1. "Semi-automatic welding method for metal powder cored wire pipe root welding", patent application number: 200810305669.6; [0004] 2. "Welding method with full-automatic external welding machine for all positions of pipelines", patent application number: 201010558544.1. [0005] Among them, the "metal powder cored wire pipe root welding semi-automatic welding method" realizes the root welding process of pipe girth welding using metal powder cored wire and semi-automatic welding. Compared with automatic welding, the efficiency is low, and the radiation and smoke during welding etc. affect the physical and mental health of welder...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/16B23K101/06
Inventor 蔡革新王国锋徐瑞轩冯焱
Owner 廊坊市管道人机械设备有限公司
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