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H-shaped steel beam manufacturing method
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A manufacturing method, H-shaped steel technology, applied in the direction of manufacturing tools, welding/welding/cutting items, welding equipment, etc., can solve the problems of limited specifications and models, heavy welding workload, deformation, etc.
Active Publication Date: 2020-06-30
HUBEI TIANGAO BRIDGE ENG CO LTD
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Problems solved by technology
With the rapid development of the steel structure industry, the rolled section steel is far from meeting the market demand. On the one hand, the bottleneck lies in the limited specifications and models, and on the other hand, it is difficult to roll large-size section steel.
The traditional method of welding H-shaped steel is to connect a pair of flange plates and webs in pairs. This kind of H-shaped steel has a large welding workload and the quality of the weld is difficult to control.
The biggest problem is that it is difficult to weld at the T-joint, the deformation is serious, the welding workload is heavy, the quality of the weld is difficult to control, and the welding efficiency is low
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[0065] Welding current / voltage: Front wire DC electrode 950A / 35V
[0066] Rear wire AC electrode 900A / 45V
[0067] Welding speed: 70cm / min
[0068] Large groove side welding parameters
[0069] Welding current / voltage: Front wire DC electrode 1100A / 35V
[0070] Rear wire AC electrode 1050A / 45V
[0071] Welding speed: 45cm / min
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Abstract
The invention discloses an H-shaped steel beam manufacturing method. An H-shaped steel beam comprises a pair of flange plates and a web plate, protrusions welded cooperatively to two sides of the webplate is arranged on the middle portions of the flange plates, the H-shaped steel beam is fabricated by welding the two sides of the web plate and the protrusions of the pair of flange plates separately. The H-shaped steel beam manufacturing method transfers the welding position of the H-shaped steel beam to the web plate and the welding position is near the two symmetrical ends, welding is easierto realize, the size and specification of structural steel are flexible, and it is convenient to realize the large-scale site installation and construction such as H-shaped steel beams.
Description
technical field [0001] The invention relates to the technical field of steel structure manufacturing. More specifically, the present invention relates to the manufacturing technology of larger H-shaped steel, T-shaped bar and similar steel structural beams, and in particular to the manufacturing method of H-shaped steel beams. Background technique [0002] H-shaped steel is very common, generally there are standard and non-standard rolled steel, more common is welded H-shaped steel. With the rapid development of the steel structure industry, rolled section steel is far from meeting the market demand. On the one hand, the bottleneck lies in the limited specifications and models, and on the other hand, it is difficult to roll large-size section steel. The traditional method of welding H-shaped steel is to connect a pair of flange plates and webs in pairs. This kind of H-shaped steel has a large welding workload and the quality of the weld is difficult to control. The biggest...
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Application Information
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