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Steel bar connecting method based on alternating and direct current double wire submerged arc

A connection method, AC and DC technology, applied in welding equipment, arc welding equipment, welding/welding/cutting items, etc., can solve the problem of low welding strength, achieve the effects of improving strength, tight connection, and reducing the probability of occurrence

Inactive Publication Date: 2017-06-30
SICHUAN MORROW WELDING DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a steel bar connection method based on AC-DC double-wire submerged arc to solve the problem of low welding strength of existing steel bar weldments

Method used

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  • Steel bar connecting method based on alternating and direct current double wire submerged arc
  • Steel bar connecting method based on alternating and direct current double wire submerged arc

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Embodiment

[0022] Such as figure 1 , 2 As shown, the present invention is based on the AC-DC double-wire submerged arc steel bar connection method, comprising the following steps:

[0023] A: prepare two equal-diameter steel bars 1, and open two rectangular grooves 2 on the end face of the steel bar 1, and the rectangular grooves 2 are symmetrical about the central axis of the steel bar 1;

[0024] B: Adjust the two steel bars 1 so that the rectangular grooves 2 of the two steel bars 1 face the same direction, and at the same time make the bottom surface of the rectangular groove 2 on each steel bar 1 vertically upward, and the two steel bars 1 The rectangular groove 2 faces the same direction, and then spot welding and positioning at the center points of the ends of the two steel bars 1, so that the center points of the two steel bars 1 are connected as one, and the distance between the end faces of the two steel bars 1 is 3mm ;

[0025] C: Preheat the two rectangular grooves 2, and ...

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Abstract

The invention discloses a steel bar connection method based on AC and DC double-wire submerged arcs, which includes the following steps: A: prepare two steel bars with equal diameters, and open two rectangular grooves on the end faces of the steel bars, and the rectangular grooves are about The central axis of the steel bar is symmetrical; B: Adjust the two steel bars so that the rectangular grooves of the two steel bars face the same direction, and at the same time make the bottom surface of the rectangular groove on each steel bar vertically upward, and the two steel bars The rectangular grooves of the bars face the same direction, and then spot welding and positioning at the center points of the end faces of the two steel bars, so that the center points of the two steel bars are connected as a whole, and the distance between the end faces of the steel bars is 2 to 3mm; C: Preheat the two rectangular grooves, then use low-hydrogen type acid welding rods, use arc welding to fill the rectangular grooves of the two steel bars, and then arc in the opposite direction to the welding direction; D: When After the two steel bars are welded, remove the slag.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a steel bar connection method based on AC and DC double-wire submerged arcs. Background technique [0002] Steel bars have a series of advantages such as high specific strength, excellent corrosion resistance, low cost, good toughness and weldability, and have been successfully applied in building construction. To meet certain building requirements, it is often necessary to weld multiple bars together to extend the length of the bars. The welded steel bars are generally used vertically and are very susceptible to vibration due to environmental factors. However, the welded seams of the steel bars in the prior art are relatively rough and the welding strength is low, and they are prone to misalignment under oscillating conditions, which affects the safety of the building. performance. Contents of the invention [0003] The purpose of the present invention is to provide a steel...

Claims

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Application Information

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IPC IPC(8): B23K9/18B23K9/235
CPCB23K9/18B23K9/235B23K2103/04
Inventor 杨友涛
Owner SICHUAN MORROW WELDING DEV
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