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Small-cylinder-diameter-ratio pipe connector submerged arc saddle-shaped automatic welding method

A saddle-shaped and pipe joint technology, which is applied in arc welding equipment, welding equipment, tubular objects, etc., can solve problems such as welding defects on the surface of the weld, achieve stable performance, beautiful weld shape, and wide application

Inactive Publication Date: 2014-08-06
JIANGLIAN HEAVY IND GRP CO LTD
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Problems solved by technology

In the past, the pipe joints with small barrel diameter ratio were all carried out by a single manual welding technology. In the process of manual welding, due to the influence of welding technology and human factors, welding defects appeared on the surface of the weld seam after manual welding, and the internal defects were within 100 It is often found in the detection of %UT

Method used

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  • Small-cylinder-diameter-ratio pipe connector submerged arc saddle-shaped automatic welding method

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Embodiment Construction

[0017] For ease of understanding, the present invention will be explained in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] An automatic submerged arc saddle-shaped welding method for pipe joints with a small cylinder diameter ratio, the steps are as follows: figure 1 As shown, the cylinder 7 is set on the welding support 6, the pipe joint 8 is vertically fixed on the cylinder 7 by manual argon arc welding, and the flux protection tool 2 is placed on the cylinder 7 to support the welding For the required flux, use a balance crane to place the submerged arc saddle automatic welding machine 1 on the pipe joint 8, and extend the three-jaw chuck on the submerged arc saddle automatic welding machine 1 into the inside of the pipe joint 8 to make the submerged arc saddle The automatic welding machine 1 is fixed on the pipe joint 8, and through the adjustment of the saddle drop regulator 4 and the welding torch angle regulating valve 3 re...

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Abstract

The invention provides a small-cylinder-diameter-ratio pipe connector submerged arc saddle-shaped automatic welding method which is characterized by comprising the steps that a pipe connector is perpendicularly fixed to a cylinder body by bottoming through handmade argon arc welding, a flux protection tool is placed on the surface of the cylinder body so as to support flux needed in welding, and a balance crane is used for placing a submerged arc saddle-shaped automatic welding machine on the pipe connector; due to the fact that a three-jaw chuck on the submerged arc saddle-shaped automatic welding machine extends into the pipe connector, the submerged arc saddle-shaped automatic welding machine can be fixed to the pipe connector, and due to the fact that a saddle fall adjustor and a welding gun angle adjusting valve are adjusted respectively in sequence, different falls and weld bead arrangements are adjusted, and submerged arc saddle-shaped automatic welding is completed. According to the small-cylinder-diameter-ratio pipe connector submerged arc saddle-shaped automatic welding method, small-cylinder-diameter-ratio pipe connector submerged arc saddle-shaped automatic welding is successfully achieved, and the weld appearance is attractive.

Description

technical field [0001] The invention relates to a welding method, in particular to a submerged arc saddle-shaped automatic welding method for pipe joints. Background technique [0002] In industries such as boilers and pressure vessels, the longitudinal circular seams and most of the pipe joints (barrel-to-diameter ratio greater than 3) on the equipment have been automatically welded, and the quality of the pipe joints is an extremely important factor in the entire set of production and operation equipment. key parts. In the past, the pipe joints with small barrel diameter ratio were all carried out by a single manual welding technology. In the process of manual welding, due to the influence of welding technology and human factors, welding defects appeared on the surface of the weld seam after manual welding, and the internal defects were within 100 It is often found in the detection of %UT. [0003] With the continuous improvement of boilers and pressure vessels, the weld...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/18B23K9/16B23K9/32
CPCB23K9/18B23K9/0213B23K9/16B23K9/32B23K2101/06
Inventor 黄科辉邓万华袁晓真陈小艳谢敏魏晓艳
Owner JIANGLIAN HEAVY IND GRP CO LTD
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