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Method for achieving mechanical welding of bent pipe structure through consumable electrode mixed gas shielded welding machine

A technology of mixed gas and melting electrode, which is applied in the direction of welding equipment, tubular objects, welding accessories, etc., can solve the problems of increasing welding manufacturing costs, increasing the number of tube panel circulation, and increasing manufacturing costs, so as to reduce butt joints and shorten manufacturing cycle, to ensure the effect of consistency

Pending Publication Date: 2021-06-15
HARBIN BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method not only increases the number of tube panel circulation and reduces production efficiency, but also increases manufacturing costs such as welding and flaw detection, and increases manufacturing costs.

Method used

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  • Method for achieving mechanical welding of bent pipe structure through consumable electrode mixed gas shielded welding machine
  • Method for achieving mechanical welding of bent pipe structure through consumable electrode mixed gas shielded welding machine
  • Method for achieving mechanical welding of bent pipe structure through consumable electrode mixed gas shielded welding machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for mechanically welding bent pipe structures with a molten electrode mixed gas shielded welding machine, comprising: a pinch wheel 1, a tube panel straight tube 2 and a tube panel elbow 3, and the wheel body of the pinch wheel is provided with There is an arc-shaped groove with an annular structure, and the arc-shaped groove on the pressing wheel is pressed on the straight tube of the tube panel. A group of the tube panel straight tubes and a group of the tube panel curved tubes form the tube panel. The group of tube panel straight tubes and the group of tube panel curved tubes are arranged side by side, the distance between two adjacent straight tubes is equal, and there are three tube panels between the two tube panel curved tubes. The tube screen straight tube described above.

Embodiment 2

[0023] According to the method of mechanical welding of the bent pipe structure by the molten electrode mixed gas shielded welding machine described in embodiment 1, the described pinch wheel is an MPM tooling wheel with enlarged diameter, and the tube panel straight tube below the pinch wheel Form a door character space when welding with the tube panel elbow.

Embodiment 3

[0025] The method for realizing the mechanical welding of the bent pipe structure according to the metal mixed gas shielded welding machine described in embodiment 1 or 2 is characterized in that: the pressure wheel described above is different in size from the pressure wheel described below, and the pressure wheel described above is different in size. The pinch rollers for this model have a different linear speed than the pinch rollers described below.

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Abstract

The invention relates to a method for achieving mechanical welding of a bent pipe structure through a consumable electrode mixed gas shielded welding machine. The invention is applied to the field of boilers.

Description

technical field [0001] The invention relates to a method for realizing the mechanical welding of an elbow structure by a molten electrode mixed gas shielded welding machine. Background technique [0002] The water-cooled wall tube panels in power plant boiler equipment are mainly welded by pipes and flat steel, and some tube panels are arranged with various hole areas such as fire viewing holes, soot blowing holes, and manholes. In order to realize these hole areas, it is necessary to design some spatial bends on the local tube panel. [0003] At present, the conventional process is to produce the flat tube panel by MPM welding machine first, then open the hole after the tube panel and then manually connect the hole and bend the tube. This method not only increases the number of tube-panel circulations and reduces production efficiency, but also increases manufacturing costs such as welding and flaw detection, thereby increasing manufacturing costs. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/173B23K9/32B23K101/06
CPCB23K9/173B23K9/32B23K2101/06
Inventor 康宝龙邓立鑫李家鲁王智颖张盛岩曲广义
Owner HARBIN BOILER