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Parallel wide-flange-edge channel steel and production method thereof

A production method and flange technology, which can be applied to slender elements, building elements, metal rolling, etc., can solve the problems of small bearing range, low production efficiency and product qualification rate, and narrow channel steel flanges. The effect of bearing range, improving production efficiency, and improving rolling stability

Active Publication Date: 2018-06-15
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems in the above-mentioned prior art that the channel steel flange is narrow and the bearing range is small, the production efficiency and the product qualified rate are low, and provide a kind of parallel wide flange channel steel and its production method

Method used

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  • Parallel wide-flange-edge channel steel and production method thereof
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  • Parallel wide-flange-edge channel steel and production method thereof

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Effect test

Embodiment 1

[0045] In this implementation, the parallel wide-flange channel steel includes the web and the flanges at the upper and lower ends of the web. The height of the web is 154mm, the width of the flange is 92mm, the ratio of the height of the web to the width of the flange is 1.7, and the The thickness is the same as 12mm, the angle between the web and the flange is 90°, the connection between the inner side of the web and the inner side of the flange is a smooth transition arc, and the radius of the arc is 12mm.

[0046] The production method of above-mentioned parallel wide flange channel steel is as follows:

[0047] (1) Heat a continuously cast rectangular billet (material Q235B) with an end face of 165mm×200mm to 1200-1250°C through a heating furnace.

[0048] (2) The heated continuous casting rectangular billet is sent to the reversible rough rolling mill for billet rolling, and the temperature of the continuous casting rectangular billet entering the reversible billet mill ...

Embodiment 2

[0054] In this implementation, the parallel wide-flange channel steel includes the web and the flanges at the upper and lower ends of the web. The height of the web is 154 mm, the width of the flange is 120 mm, the ratio of the height of the web to the width of the flange is 1.3, and The thickness is the same as 12mm, the angle between the web and the flange is 90°, the connection between the inner side of the web and the inner side of the flange is a smooth transition arc, and the radius of the arc is 12mm.

[0055] The production method of above-mentioned parallel wide flange channel steel is as follows:

[0056] (1) Heat a continuously cast rectangular billet (material Q235B) with an end face of 165mm×200mm to 1200-1250°C through a heating furnace.

[0057] (2) The heated continuous casting rectangular billet is sent to the reversible rough rolling mill for billet rolling, and the temperature of the continuous casting rectangular billet entering the reversible billet mill i...

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Abstract

The invention provides parallel wide-flange-edge channel steel and a production method thereof. According to the channel steel, the specific value of the web height and the flange edge width is smaller than or equal to 1.7. The related channel steel is characterized in that the flange edge is wide, and the inner face and the outer face of the flange edge are parallel, the bearing range of the flange edge can be widened effectively, the difficulty of follow-up machining of flange edge perforating, bolt connecting, welding and the like can be reduced, and the manufacturing efficiency of the later-stage steel structure is improved. According to the production method, hole type design with side pressure is adopted in a reversible roughing mill, the wide-flange-edge channel steel can be produced with short-end-face steel blanks, casting blank applicability is widened, rolling stability of casting blanks in the reversible rough mill initial gate is improved, the production difficulty of thechannel steel is lowered, the requirement for the equipment is lowered, the production efficiency is improved, and the product pass percent is increased. Compared with a traditional channel steel production method, the production method can produce the channel steel with wider flange edge.

Description

technical field [0001] The invention belongs to the technical fields of mechanical manufacturing and metal material processing and forming, and in particular relates to a parallel wide-flange channel steel and a production method thereof. Background technique [0002] Channel steel is a C-shaped section steel, which is widely used in various building structures, bridges, brackets, etc. There is a slope in the flange of the traditional channel steel, which makes the subsequent processing of the flange such as punching, bolting, welding, etc. more cumbersome. At the same time, the traditional channel steel flange is short, and its bearing range is small. [0003] At present, domestic production of channel steel generally adopts a narrow-waisted pass design, which makes it difficult to widen the flange, and has high requirements for the size of the rolled billet, resulting in the need to increase the size of the billet or the flange of the finished product is narrow, resulting...

Claims

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Application Information

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IPC IPC(8): B21B1/095F16S3/02
CPCB21B1/095F16S3/02
Inventor 付常伟王中学张秀山赵西义任伟赵新华任维杰
Owner SHANDONG IRON & STEEL CO LTD
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