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A Welding Method for Thick Plate Penetration Welding H-Shaped Steel without Carbon Gouging

A technology of penetration welding and welding method, applied in welding/welding/cutting items, welding equipment, arc welding equipment, etc., can solve the problems of complex processing, long cycle, high cost, improve weld quality and slow production speed , the effect of saving the cost of consumables

Active Publication Date: 2021-11-16
徐州中煤汉泰建筑工业化有限公司 +3
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of complex processing, long cycle and high cost caused by the need to use the decarburization planing process in the existing large-scale H steel preparation process, and to invent a thick plate penetration welded H-shaped steel without carbon planing Cleaning method of welding

Method used

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  • A Welding Method for Thick Plate Penetration Welding H-Shaped Steel without Carbon Gouging
  • A Welding Method for Thick Plate Penetration Welding H-Shaped Steel without Carbon Gouging
  • A Welding Method for Thick Plate Penetration Welding H-Shaped Steel without Carbon Gouging

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] Such as Figure 1-7 shown.

[0034] A welding method for thick plate penetration welding H-shaped steel without carbon planing. Take one side as an example, and the other side needs to be turned over for reference. It includes the following steps:

[0035] (1) H-shaped steel web and flange blanking. Gas cutting is used for blanking, and the cutting surface should be free of cracks, slag inclusions, and delamination. A 4mm welding gap is left on one side of the web blanking, and the blanking width is reduced by 8mm from the web width;

[0036] (2) Open the bevel. The beveling machine is used to open the beveling machine. The front bevel depth is 15mm, the bevel angle is 35 degrees, the back bevel depth is 11mm, the bevel angle is 40 degrees, and the root is 2mm in the middle, such as figure 2 shown;

[0037] (3) H-beam assembly. Before asse...

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Abstract

A welding method for thick plate penetration welding H-shaped steel without carbon planing, which is characterized in that groove clearance, groove angle, welding positioning, grinding and slag removal tools are used reasonably. Change the traditional method: front groove welding, reverse carbon planing and grinding, and reverse penetration welding; adopt the method of leaving a gap between the flange and the web, front groove welding, reverse grinding to remove welding slag, and reverse penetration welding. The invention replaces the welding process of carbon planing and grinding on the reverse side by leaving a gap and grinding the back side, avoiding carbon inclusions, sticky slag, copper spots, burn-through, and irregular groove size and shape caused by carbon planing. Cutting defects, avoiding the noise, serious pollution, many consumables, and slow production speed caused by carbon planing grinding. The method is beneficial to energy saving and material saving in the production process, reduces pollution, accelerates the welding speed of the H-shaped steel assembly, and saves processing and manufacturing costs.

Description

technical field [0001] The invention relates to a non-standard profile preparation technology, in particular to a large-scale H-shaped steel welding preparation method, in particular to a thick plate penetration welding H-shaped steel welding method without carbon planing. Background technique [0002] At present, large-scale H-shaped steel is often used in some large-scale projects. This type of steel cannot be rolled and formed by a steel factory. It can only be prepared by welding with steel plates by the construction unit. The frame composed of H-shaped steel columns and steel beams, the section of welded H-shaped steel is BH350×350×28×40, and the total engineering quantity of welded H-shaped steel is 230 tons. The thickness of the welded H-shaped steel web is 28mm, and the weld between the web and the flange plate is a penetration weld. According to the conventional welding process for welding H-beams, the welding process is: double-sided groove welding between the web...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23K9/025B23K9/16B23K33/00B23K103/04
CPCB23K9/025B23K9/16B23K33/004B23P15/00B23K2103/04
Inventor 李峰王善文王智达冯兆礼王贺
Owner 徐州中煤汉泰建筑工业化有限公司
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