Rolling technical skill of hot strip rough rolling process

A technology of hot-rolled strip steel and process technology, applied in metal rolling, metal rolling, manufacturing tools, etc., can solve the problems of large temperature drop and many rolling passes in the rough rolling area of ​​the strip, and achieve production efficiency High, short process, low investment effect

Active Publication Date: 2009-12-02
CISDI ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Although the conventional hot strip production process adopts the semi-continuous rolling process, the length of the rolling line in the rough rolling area is greatly shor

Method used

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  • Rolling technical skill of hot strip rough rolling process
  • Rolling technical skill of hot strip rough rolling process

Examples

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Example Embodiment

[0019] With reference to the drawings, the specific implementation of the present invention will be further explained:

[0020] After the continuous casting slab with a thickness of 135~250mm is heated to the specified discharge temperature by the heating furnace 1, it enters the rough rolling high-pressure water descaling box 2 through the roller table to remove the oxide scale, and then enters the No.1 tandem The reversible four-high roughing mill 3 and No.2 tandem reversible four-high roughing mill 4 two tandem arrangement of roughing mills are reversible rolling 3 to 5 passes, rolling to a certain thickness (30 to 60mm) After the intermediate billet is insulated by the heat preservation cover 5 or the hot coil box 6, the flying shear 7 cuts the head and the tail, the finishing rolling high-pressure water descaling box 8 removes the regenerated iron scale, and then passes through the finishing mill 9 consisting of 5 to 7 irreversible rolling mills A hot-rolled steel strip with ...

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PUM

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Abstract

The invention belongs to the forming technical field, in particular relates to the novel rolling technical skill of the rough rolling process of a conventional hot strip rolling process (conventional hot strip rolling process). The rolling technical skill comprises the steps that after a continuous casting sheet billet is heated by a heating furnace to a prescribed tapping temperature, the iron scale of the casting sheet billet is removed, the casting sheet billet then enters a rough rolling mill set which is serially arranged by two reversing rolling mills for reverse rolling, an interim billet with certain thickness is rolled and is made into a hot strip with the thickness of a finished product after heat preservation, head and tail cutting and regenerated iron scale removing, and the finished hot strip enters a recoiler to be recoiled after the finished hot strip is cooled. The invention has the advantages of high production possibility of the rough rolling mill set, short rolling line length of a rough rolling area, little temperature fall of the sheet billet in the rough rolling area, and the like. The rolling technical skill of the hot strip rough rolling process can be used for the construction of a new or reformed hot strip rolling mill.

Description

technical field [0001] The invention belongs to the technical field of forming, and in particular relates to a novel rolling process technology of a rough rolling process of a conventional hot strip rolling process (Conventional hot strip rolling process). Background technique [0002] Conventional hot continuous strip steel production process means that the slab with a thickness of 135-250mm is loaded into the slab heating furnace (in the way of cold charging or hot charging) for heating, and then rolled into a strip by the rough rolling unit and the finishing rolling unit. The traditional production process of the product. [0003] The production process of conventional hot strip rolling is divided from the rolling process of the roughing mill. At present, there are three types of semi-continuous rolling process, full continuous rolling process and 3 / 4 continuous rolling process. The finishing rolling units of the manufacturing process are all irreversible continuous roll...

Claims

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Application Information

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IPC IPC(8): B21B1/34B21B45/00
Inventor 余海黄波胡昌宗
Owner CISDI ENG CO LTD
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