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Forming method for special-shaped beam with right-angle step

A forming method and step technology, applied in metal rolling and other directions, can solve the problems of inability to process sharp or right-angle structures, inability to realize sharp-angle forming, and long preparation cycle, so as to save raw materials, low cost, and fast forming speed Effect

Inactive Publication Date: 2020-06-05
江苏顺力冷弯型钢实业有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

If the profile of this special structure is formed by hot rolling, its thickness is not suitable for hot rolling forming, and mechanical removal after hot rolling will have a long preparation cycle, serious material waste, high cost, and hot rolling forming cannot be processed Angle or right angle structure
Therefore, the hot rolling process is powerless, and if cold rolling is used, since there must be a circular arc transition in the bending process of the plate, sharp corner forming cannot be achieved, and its step surface cannot be formed by cold rolling. In this regard, cold bending technology can't do anything

Method used

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  • Forming method for special-shaped beam with right-angle step
  • Forming method for special-shaped beam with right-angle step
  • Forming method for special-shaped beam with right-angle step

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Embodiment Construction

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

[0033] like Figure 1-6 shown.

[0034] A method for forming special-shaped beams with right-angled steps, with figure 1 The product shown is an example in the Image 6 The final forming on the production line shown includes seven steps of material preparation, cold rolling, heating, hot rolling, cooling, shaping and straightening, specifically including:

[0035] The first step is blanking. According to the size and loss of the final formed product, the steel strip coil is cut into a steel strip coil of the required width; the cutting equipment can be carried out by using the existing uncoiling equipment; The calculation is obtained, and the calculation is performed using the principle of constant volume.

[0036] The second step is to put the cut steel strip on the loading machine at the beginning of the cold rolling production line through the co...

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Abstract

A forming method for a special-shaped beam with a right-angle step is characterized by comprising the seven steps including material preparing, cold rolling, heating, hot rolling, cooling, reshaping and correcting. The forming method sufficiently develops the characteristics of the cold rolling technology, meanwhile, the hot forming technology is creatively applied to a cold rolling production line, and the problem about rapid forming of a special-shaped sharp corner type component is solved. The characteristics that the forming speed is high, the quality is good, cost is low, and raw materials are saved are achieved.

Description

technical field [0001] The invention relates to a cold rolling technology, in particular to a technology for preparing complex special-shaped cross-section steel beams by combining cold rolling and hot rolling, in particular to a forming method for special-shaped beams with right-angled steps. Background technique [0002] At present, in some large electromechanical products, such as figure 1 The bottom beam of the high-speed rail vehicle shown is not only long in length, generally more than 10 meters, but also has a step body on one side to facilitate lapping of other parts. The key point is that the angle between the two sides and the upper surface is required to be a right angle or a sharp angle, without radians, and its thickness should not exceed 10 mm. If the profile of this special structure is formed by hot rolling, its thickness is not suitable for hot rolling forming, and mechanical removal after hot rolling will have a long preparation cycle, serious material was...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/095
CPCB21B1/095
Inventor 王银
Owner 江苏顺力冷弯型钢实业有限公司
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