Non-groove rolling technology of horizontal mill

A technology of rolling mill and process, which is applied in the field of grooveless rolling process of full horizontal rolling mill, can solve problems that have not been reported, and achieve the effects of reducing reserve funds, reducing intermediate rolling waste, and reducing rolling accidents

Active Publication Date: 2007-08-01
湖南华菱涟源钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are more and more developments, researches or applications of grooveless rolling technology on the fully continuous steel rolling process line where the rolling mills are alternately arranged horizontally and vertically, such as "Research and production application of grooveless rolling technology for blooming mills" (《 "Steel Rolling" 1003-9996 (2004) 02-0001-03) and "The Broadening and Application of Flat Roll Rolling" ("Steel Rolling" 1006-5008 (2005) 04-2030-04) are reported; but in the present invention It has not been reported before that the flat roll grooveless rolling process is used in the semi-continuous steel rolling process in which the rolling mill is fully horizontally arranged.

Method used

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  • Non-groove rolling technology of horizontal mill
  • Non-groove rolling technology of horizontal mill
  • Non-groove rolling technology of horizontal mill

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Embodiment 1: the multi-strand rolling production process as shown in accompanying drawing 3.

[0018] The multi-line rolling production process of the full-horizontal mill grooveless rolling process includes a blooming mill 1, a junior rolling mill 2, flying shears 3 or 5 or 11, a middle rolling mill group 4, loopers 6 or 8 or 9 or 10, Fine hole unit7. Among them, the preliminary rolling mill 1 is a three-roll mill with a single stand, the junior rolling mill 2 is a two-roll mill, the middle rolling mill 4 is a six two-roll mill, and the finishing mill 7 is an eight two-roll mill (some rolling mills according to different specifications) optional), it is a fully horizontal rolling mill, arranged in tandem, and constitutes a continuous rolling mill. Flying shears 3 are flying shears for head cutting, flying shears 5 are flying shears for dealing with head and tail cutting accidents, flying shears 11 are flying shears for double ruler (fixed length), and looper 6 is 5 ...

Embodiment 2

[0021] Single wire rolling process as shown in accompanying drawing 4

[0022] The rolling mill distribution situation before the third stand rolling mill (pass type is K4) of finishing rolling group 7 is identical with the rolling mill distribution situation (accompanying drawing 3) of multi-line rolling process, and the fourth, the fifth, the 4th of finishing rolling group 7 The pass shape of the six-stand rolling mill is shown in Figure 2 as K 3 、K 2 、K 1 .

[0023] During single-line rolling, the fourth rolling stand of the finishing rolling unit 7 (pass type is K 4 ) is a flat roll mill, and the rolled flat roll material is twisted by 90° through the guide and enters the fourth stand of the finishing rolling unit 7 (pass type K 3 ) is rolled into a round hole material shape or a universal hole material shape, and enters the fifth rolling mill in the finishing rolling unit 7 through the looper 9 (the pass type is K 2 ) rolled into a flat elliptical-shaped material, an...

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PUM

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Abstract

The invention discloses a slotless rolling art for all-horizontal rolling mill which rolls round bar and screw-thread steel on semi-continuous rolling process online. It arranges junior mill 2, crop flying shear 3, junior mills group 4, crop and crop end flying shear 5, loop 6 or 8 or 9 or 10, finishing mills group 7 and times ruler flying shear 11 after blooming mill 1 consecutively; installs plain-barreled roll 41 or 42 and 71 or 72 on the third or fifth rolling mill frames of junior mills group 4 and the first and third rolling mill frames of finishing mills group 7, the plain-barreled rolls need not be processed hole-type groove, the rolling pressure is decreased significantly. The plain-barreled rolling mills does not have wrong rollers in whole rolling process, does not generate ears, decreases central waste rollers, saves changing roller time, increases rolling mill efficiency. The plain-barreled roll slotless rolling art not only can be used in flat alternative continuous rolling process line, but has a bright prospect in development and application of all-horizontal rolling mill process line.

Description

technical field [0001] The invention relates to a rolling process, in particular to a full-horizontal rolling mill grooveless rolling process for rolling round steel or threaded steel on a semi-continuous steel rolling process line with fully horizontally arranged rolling mills. Background technique [0002] There are more and more developments, researches or applications of grooveless rolling technology on the fully continuous steel rolling process line where the rolling mills are alternately arranged horizontally and vertically, such as "Research and production application of grooveless rolling technology for blooming mills" (《 "Steel Rolling" 1003-9996 (2004) 02-0001-03) and "The Broadening and Application of Flat Roll Rolling" ("Steel Rolling" 1006-5008 (2005) 04-2030-04) are reported; but in the present invention It has not been reported before that the flat roll grooveless rolling process is adopted in the semi-continuous steel rolling process in which the rolling mill...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/18B21B27/02B21B15/00
Inventor 李德良廖志
Owner 湖南华菱涟源钢铁有限公司
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