CN1827249A - Four-line slitting hole-shape arrangement method for bars - Google Patents
Four-line slitting hole-shape arrangement method for bars Download PDFInfo
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- CN1827249A CN1827249A CN 200610012534 CN200610012534A CN1827249A CN 1827249 A CN1827249 A CN 1827249A CN 200610012534 CN200610012534 CN 200610012534 CN 200610012534 A CN200610012534 A CN 200610012534A CN 1827249 A CN1827249 A CN 1827249A
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Abstract
The invention relates to a method that rod four-wire division middle rolling channel and distributing the shape of hole, which belongs to the rolling steel technique. The invention can solve the problems of present four-wire division technique that complex adjustment and worse quality stability. In said invention, the first three shapes of hole shape are ellipse, round and ellipse, and the forth one is round, the fifth is plain-barreled roll non-hole type, and the invention adds the sixth one as upright box type. The invention replaces the former ellipse-square connection with the round-plain-barreled roll non-hole connection, and solves the problem of distortion of square hole. Therefore, the rolling element can operate successfully, and the adjustment hardness is reduced to simplify the shape kinds of hole.
Description
Technical field
The present invention relates to bar cutting rolling technology in the steel rolling, especially the four-line syncopate rolling technique belongs to steel rolling process method and technology field.
Background technology
The cutting rolling technology of bar, it is the effect that in rolling process, utilizes pass, a steel billet is processed into two or more has identical shaped rolled piece in parallel, utilize cutting equipment or roll collars that rolled piece in parallel longitudinally is cut into independent rolled piece again, finally obtain two or more identical bar products.The bar cutting rolling technology is divided into two line cuttings, three-line syncopate and four-line syncopate by the cutting number.
Present four-line syncopate rolling technique, each passage of roughing unit adopts common pass, the circular rolled piece of final formation, in roll each passage pass be followed successively by :-elliptical aperture-circular hole-elliptical aperture-square hole-Ping case-empty mistake, the pass of each passage of finish rolling is followed successively by: flat case--pre-cutting-pre-cutting-cutting-ellipse-finished product hole.In this kind four-line syncopate rolling technique, the pass that middle mill train is inferior and the shared property of other kind are poor, rolled piece needs could enter smoothly in the flat case by after the reversing guide and guards and reverse 45 ° of special configuration after being shut out by square hole, increased in the operation of rolling control difficulty to rolled piece; Simultaneously, reverse guide and guards and in use need often carry out complicated loaded down with trivial details adjustment, these roll the stability of process and the dimensional accuracy of rolled piece in all being unfavorable for guaranteeing, even can move the production accident that occurs out of control because of rolled piece.
Summary of the invention
Technical problem to be solved by this invention provides in a kind of bar four-line syncopate mill train time and pass positioning method, and the rolled piece operation control difficulty that present pass manner of formulation had is big to eliminate, complicated, production process is adjusted in guide and guard and the defective of constant product quality difference.
The alleged problem of the present invention realizes with following technical scheme:
Mill train reaches pass positioning method in a kind of bar four-line syncopate, wherein, the pass of first three passage is followed successively by: elliptical aperture K12-circular hole K11-elliptical aperture K10, its improvement is, the four-pass pass is circular hole K9, the pass of the 5th passage is plain-barreled roll anapsid K8, increases by the 6th passage, and the pass of the 6th passage is upright case pass K7.
Mill train reaches pass positioning method in the above-mentioned bar four-line syncopate, and the rolling guide mode is adopted in the import guide and guard of the upright case pass K7 of described the 6th passage.
The present invention has following characteristics:
1. the configuration that elliptical aperture in the roll process flow process in former is connect square hole changes circular hole into and connects the plain-barreled roll anapsid, rolled piece does not have the torsional deflection problem behind the square hole, the rolled piece operation is smooth and therefore be easy to control, can significantly improve the stability of Rolling Production, and help improving rolling accuracy;
2. removed the guide and guards that reverses behind the square hole, simplified the version of four-pass outlet guide and the 5th passage import guide and guard, the adjustment difficulty of guide and guard reduced greatly;
3. rolled piece forms a circular rolled piece at four-pass through circular hole K9, plain-barreled roll anapsid K8 through setting up is processed into flat rolled piece, form an accurate in size rectangle rolled piece at upright case pass K7, can significantly improve the dimensional accuracy of rolled piece, for mm finishing mill unit provides the high accuracy blank;
4. eliminated the square hole pass and, simplified the pass kind of rolling mill practice with behind the plain-barreled roll anapsid instead of flat case pass;
Adopt process of the present invention, no rolled piece operation stability difference causes the hidden danger of production accident, the controlled size precision of middle milling train group rolled piece is in 0.1 millimeter scope, can realize reliable and stable production run, and because of in the mm finishing mill unit that rises to of milling train group rolled piece precision the high accuracy blank is provided, finally obtain high-quality finished product.
Description of drawings
Fig. 1 is that mill train reaches the pass ordering chart among the present invention.
The specific embodiment
Consult Fig. 1.Be illustrated as 12 millimeters screw-thread steel bar four-line syncopates rolling in, finishing pass and pass allocation plan, K6-K5-K4-K3-K2-K1 wherein is finishing pass and pass, is existing technological process; In phase roll process flow process before rolling still adopt conventional case-case-ellipse-circle-ellipse-circle rolling pass and pass to dispose, so do not show in the drawings.The present invention improves and rolls in the flow process in related, middle mill train is six roads, wherein, the pass of first three passage still is existing collocation form, be elliptical aperture K12-circular hole K11-elliptical aperture K10, improve four-pass hole, back and adopt circular hole K9, replaced square groove in the former configuration with circular hole, and change original box flatting hole type into plain-barreled roll anapsid K8, simultaneously the former empty sortie of crossing is replaced with upright case pass K7.After the improvement, advance square hole by the elliptical aperture in the former technology and become elliptical aperture and advance circular hole, enter plain-barreled roll anapsid K8 by circular hole K9 then, rolled piece does not have fully and reverses, K8 is processed into flat rolled piece through the plain-barreled roll anapsid, forms an accurate in size rectangle rolled piece at upright case pass K7.Middle milling train group outlet workpiece measurement precision can be brought up to 0.1 millimeter, has reduced accident generator rate.
Claims (2)
1. mill train time and pass positioning method in the bar four-line syncopate, wherein, the pass of first three passage is followed successively by: elliptical aperture [K12]-circular hole [K11]-elliptical aperture [K10], it is characterized in that, the pass of four-pass is circular hole [K9], the pass of the 5th passage is plain-barreled roll anapsid [K8], increases by the 6th passage, and the pass of the 6th passage is upright case pass [K7].
2. mill train reaches pass positioning method in the bar four-line syncopate according to claim 1, it is characterized in that, the rolling guide mode is adopted in the import guide and guard of the upright case pass [K7] of described the 6th passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610012534 CN1827249A (en) | 2006-03-30 | 2006-03-30 | Four-line slitting hole-shape arrangement method for bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610012534 CN1827249A (en) | 2006-03-30 | 2006-03-30 | Four-line slitting hole-shape arrangement method for bars |
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| Publication Number | Publication Date |
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| CN1827249A true CN1827249A (en) | 2006-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610012534 Pending CN1827249A (en) | 2006-03-30 | 2006-03-30 | Four-line slitting hole-shape arrangement method for bars |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101007315B (en) * | 2007-01-18 | 2010-10-06 | 湖南华菱涟源钢铁有限公司 | Non-groove rolling technology of horizontal mill |
| CN101564734B (en) * | 2009-05-27 | 2011-04-06 | 重庆钢铁(集团)有限责任公司 | High-speed wire finish-rolling process |
| CN102744273A (en) * | 2012-07-03 | 2012-10-24 | 江苏永钢集团有限公司 | Guide device of plum blossom square two-slitting pass system |
| CN101530859B (en) * | 2008-03-12 | 2012-11-21 | 新疆八一钢铁股份有限公司 | 6-line splitting and rolling technology for deformed steel bar with small section |
| CN102814320A (en) * | 2011-06-10 | 2012-12-12 | 新疆八一钢铁股份有限公司 | Four-line splitting rolling technology for fai 12mm round steel |
| CN104084422A (en) * | 2014-07-08 | 2014-10-08 | 江苏永钢集团有限公司 | Intermediate rolling and finish rolling hole pattern structure of screw with diameter of phi 10 |
| CN111783329A (en) * | 2020-06-03 | 2020-10-16 | 武汉科技大学 | Method for determining torsional rolling technological parameters of section steel |
| CN111822541A (en) * | 2019-04-22 | 2020-10-27 | 郑金 | Production method, technological equipment and product of carbon steel wire with phi less than or equal to 6mm |
-
2006
- 2006-03-30 CN CN 200610012534 patent/CN1827249A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101007315B (en) * | 2007-01-18 | 2010-10-06 | 湖南华菱涟源钢铁有限公司 | Non-groove rolling technology of horizontal mill |
| CN101530859B (en) * | 2008-03-12 | 2012-11-21 | 新疆八一钢铁股份有限公司 | 6-line splitting and rolling technology for deformed steel bar with small section |
| CN101564734B (en) * | 2009-05-27 | 2011-04-06 | 重庆钢铁(集团)有限责任公司 | High-speed wire finish-rolling process |
| CN102814320A (en) * | 2011-06-10 | 2012-12-12 | 新疆八一钢铁股份有限公司 | Four-line splitting rolling technology for fai 12mm round steel |
| CN102814320B (en) * | 2011-06-10 | 2015-08-19 | 新疆八一钢铁股份有限公司 | The four-line syncopate rolling mill practice of Φ 12mm round steel |
| CN102744273A (en) * | 2012-07-03 | 2012-10-24 | 江苏永钢集团有限公司 | Guide device of plum blossom square two-slitting pass system |
| CN104084422A (en) * | 2014-07-08 | 2014-10-08 | 江苏永钢集团有限公司 | Intermediate rolling and finish rolling hole pattern structure of screw with diameter of phi 10 |
| CN111822541A (en) * | 2019-04-22 | 2020-10-27 | 郑金 | Production method, technological equipment and product of carbon steel wire with phi less than or equal to 6mm |
| CN111783329A (en) * | 2020-06-03 | 2020-10-16 | 武汉科技大学 | Method for determining torsional rolling technological parameters of section steel |
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