H-type shape steel vertical rolling method and apparatus

An H-beam, vertical technology, applied in the driving device of metal rolling mill, metal rolling, metal rolling, etc., can solve the problem of deterioration of mechanical properties of steel, increase of rolling force and rolling torque, and rolling production capacity. It can reduce energy consumption and other consumption, reduce rolling force and torque, and slow down temperature drop.

Active Publication Date: 2009-01-07
MAANSHAN IRON & STEEL CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

The cross-section of the rolled piece is in the shape of a positive "H" from the beginning to the end, the web is in a horizontal state, and the flange is in a vertical state. The defect of this rolling method is that during the rolling process, a considerable part of the cooling water sprayed on the roll flows into the web. In the long groove formed by the flange and the flange, it cannot be ruled out
The cooling water causes the temperature of the rolled piece to drop rapidly, the temperature decreases, and the rolling force and moment increase exponentially, which not only increases the rolling force and rolling moment, but also increases the energy consumption of rolling production, and deteriorates the mechanical properties of the steel. performance, which increases the difficulty of rolling, especially for rolling web and flange thin-walled products. Some light-weight thin-walled products cannot be rolled, and it takes a huge investment to produce light-weight thin-walled H-beam products

Method used

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  • H-type shape steel vertical rolling method and apparatus
  • H-type shape steel vertical rolling method and apparatus
  • H-type shape steel vertical rolling method and apparatus

Examples

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Embodiment Construction

[0018] It can be seen from Figure 1 that the steel billet is heated by the heating furnace 1, descaled by the high-pressure water descaling machine 2, rolled by the billet rolling mill 3, and cut by the head cutting device 4. The rolled piece is in the shape of "H" and the web is horizontal In the vertical state, the flange is in a vertical state, sent to the turning device 5, the rolled piece is turned 90 degrees, and the web of the rolled piece enters the vertical universal rolling mill 6 and the vertical edger 7 in a vertical state for several passes of intermediate and finish rolling. . In the middle and finish rolling process, the web of the rolled piece is in a vertical state, and the flange is in a horizontal state. After rolling and forming, it is cut by the cutting device 8 and sent to the cooling bed 9. The finished product turning device installed on the cooling bed 9 10. Turn over the finished "H" shaped steel by 90 degrees to facilitate cooling on the cooling bed ...

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Abstract

The present invention relates to a vertical rolling method of wide flange steel and its equipment, belonging to the field of metal rolling technology. Said method includes the following steps: billet heating, des caling, blooming, cropping and rolling so as to obtain the rolled material with web plate and flange. Said invention also provides the concrete operation steps of said rolling process.

Description

technical field [0001] The invention belongs to metal rolling, in particular to a rolling method and device for section steel. Background technique [0002] H-shaped steel is an economical section steel, which is widely used in industry, agriculture, transportation and construction projects. At present, the rolling of H-shaped steel adopts the method of horizontal rolling of the web. After the billet is heated, it is opened and rolled, and the rolled piece with H-shaped web and flange enters the universal rolling mill, the finishing rolling unit and the edge rolling The web is rolled and thinned by the horizontal rollers arranged up and down, and the flange is thinned by the vertical rollers arranged on the left and right. The cross-section of the rolled piece is in the shape of a positive "H" from the beginning to the end, the web is in a horizontal state, and the flange is in a vertical state. The defect of this rolling method is that during the rolling process, a conside...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/088B21B39/20B21B15/00B21B43/00B21B35/12
Inventor 詹学义
Owner MAANSHAN IRON & STEEL CO LTD
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