CN101637787A - Square and rectangular steel forming technical method - Google Patents
Square and rectangular steel forming technical method Download PDFInfo
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- CN101637787A CN101637787A CN200910017491A CN200910017491A CN101637787A CN 101637787 A CN101637787 A CN 101637787A CN 200910017491 A CN200910017491 A CN 200910017491A CN 200910017491 A CN200910017491 A CN 200910017491A CN 101637787 A CN101637787 A CN 101637787A
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Abstract
The invention discloses a square and rectangular steel forming technical method which comprises that a sheet is directly bent into a square or rectangular shape according to a design technical size, including a coarse forming section, a fine forming section, a welding section and a forming section, wherein the coarse forming section comprises that the sheet is rolled and bent for a plurality of times by a set of assembled-type rollers in a coarse forming machine set, and the sheet is preformed into a square or rectangular shape; the fine forming section comprises that an upper roller is a three-section type roller, a bottom roller is a fixed roller and a side roller uses a fine forming machine set of electric on-off regulation; and the welding section and the forming section are carried out. The invention has low energy consumption, high finished product rate, simple production and high productive efficiency.
Description
Technical field
The present invention relates to a kind of cold-rolled forming section moulding technique, relate in particular to a kind of process of square and rectangular steel straight forming.
Background technology
In recent years along with the input of country to capital construction, steel structural form has more and more been adopted in great municipal works in various places and architectural engineering, square steel tube is because good looking appearance, stressed reasonable, advantages such as node processing is simple relatively, thereby in the truss structure system of airport terminal, stadiums and conference and exhibition center etc. and curtain wall support system, be widely used as the steel member.Traditional forming technology of clod wash square steel tube is earlier Hot Rolled Steel Coil progressively to be rolled into pipe by putting up the shape unit more at normal temperatures, again pipe is rolled into square tube by the shaping unit subsequently, be known as " side of being connected into " technology, this technology power consumption height, complex manufacturing technology, lumber recovery are low.
Summary of the invention
The objective of the invention is,, provide that a kind of energy consumption is low, lumber recovery is high, making is simple and the measured square and rectangular steel forming technical method of matter at the technical problem and the deficiency of above-mentioned existence.
Technical scheme of the present invention is: with sheet material by the direct side's of the being bent into rectangle of design technology size, this process comprises thick profiled section, the precisive shaped section, welding section and integer section, thick profiled section is for utilizing a cover composite (back-up) roll through several time roll bending in thick shaping machine set sheet material, finishing first bent angle earlier is top two R arc angles of tubing, finishing second bent angle again is two R arc angles in bottom surface of tubing, the side of being pre-formed as is rectangular-shaped with sheet material, composite (back-up) roll is applicable to multiple side's rectangle specification, all bottom rollers of composite (back-up) roll are stationary roll, the online electronic adjustment of top roll and side roller; It is that syllogic roll, bottom roller are the precisive shaped unit that stationary roll, side roller adopt electronic folding to adjust that the precisive shaped section adopts top roll, and the roll in every segment limit of syllogic roll is shared; Welding section adopts the high-frequency welding method in the welding unit opening part of square rectangle to be carried out welded closed, and the side compression roller of welding unit is the composite roll sheet that electronic folding is adjusted; It is that composite roll sheet, bottom roller are the integer unit that stationary roll, side roller adopt electronic folding to adjust that the integer section adopts top roll.
The invention has the beneficial effects as follows: because employing is direct brake forming, easily manufactured, dimensional accuracy is controlled and guarantee that making four bent angles of mother metal is brake forming gradually under the effect of each passage format roll basically, has kept original mechanical performance preferably; From the metallographic structure of section bar, adopt straight forming technology, angular bend modification only, remaining section bar tensile strength, yield strength and the equal mother metal of percentage elongation are approaching, change very littlely, and cold-bending property is good, and impact flexibility all is higher than the GB requirement; In the thick moulding production process of square and rectangular steel, utilize a cover composite (back-up) roll can produce the square and rectangular pipe material of 150mm * 150mm ∽ 500mm * 500mm, wall thickness 5mm ∽ 19mm, realized the machine-shaping of many kinds, many specifications, manufacturing enterprise can be reduced production costs widely, greatly reduce energy consumption simultaneously, improved lumber recovery; Can onlinely carry out electronic roll adjustment, change product specification, need not the off-line roll and change, roll is adjusted to technology need improve production efficiency with getting final product.
Description of drawings
Fig. 1 is a moulding process schematic diagram of the present invention;
Fig. 2 is the process chart of thick profiled section among the present invention;
Fig. 3 is the process chart of precisive shaped section among the present invention;
Fig. 4 welds schematic diagram among the present invention;
Fig. 5 is integer schematic diagram among the present invention.
The specific embodiment
The present invention includes thick profiled section, precisive shaped section, welding section and integer section, sheet material by the roller side of being bent into rectangular shape, utilizes the high frequency welding of will remaining silent, by the shaping side of becoming rectangle shaped steel according to design size.Fig. 1 is a moulding process schematic diagram of the present invention, simplifies and has described from slightly being molded into the straight forming technology formation figure of precisive shaped to welding.
Fig. 2 is the process chart of thick profiled section, sheet material utilizes a cover composite (back-up) roll 9 through several time roll bending in thick shaping machine set, 14.75mm sheet material is finished the technical process of first bent angle through production line first frame 1, second frame 2, the 3rd frame 3, the 4th frame 4, in fact first bent angle is exactly top two R arc angles of tubing; Sheet material is finished the second bent angle technical process through the 5th frame 5, the 6th frame 6, the 7th frame 7, the 8th frame 8, and second bent angle is two R arc angles in bottom surface of tubing just.One cover composite (back-up) roll 9 is applicable to multiple side's rectangle specification of 150mm * 150mm ∽ 500mm * 500mm, wall thickness 5mm ∽ 19mm, all bottom rollers 10 of composite (back-up) roll 9 are stationary roll, top roll 11 and the 12 online electronic adjustment of side roller, product specification is changed, need not the replacing of roll, online electronic adjustment roll can be realized the replacing production of product specification.
Fig. 3 is the process chart of precisive shaped section, sheet material is after first, second bent angle moulding, need to enter welding process through precisive shaped, realize the preliminary cross sectional shape of tubing by first 14 of precisive shaped, second 15 of precisive shaped, the 3rd 16 of precisive shaped, formed the preceding favourable V-arrangement angle of welding, two edges that is beneficial to welding.The top roll 13 of the used precisive shaped unit of precisive shaped section adopts the syllogic roll, be about to 150mm * 150mm ∽ 500mm * 500mm, thickness 5 ∽ 19mm the square and rectangular pipe specification be divided into three scopes, shared at this roll of range section, to realize different size, different-thickness production.Side roller 17 is a stationary roll, can satisfy the square and rectangular pipe of 150mm * 150mm ∽ 500mm * 500mm, thickness 5 ∽ 19mm, electronic folding adjustment, and bottom roller 18 is a stationary roll.
Fig. 4 is for finishing the reasonable section shape through thick moulding, precisive shaped, forms the welding schematic diagram behind the reasonable V-arrangement angle, adopts the high-frequency welding method in the welding unit opening part of square rectangle to be carried out welded closed.The last compression roller of welding unit is in conjunction with 150mm * 150mm ∽ 500mm * 500mm, and the square and rectangular pipe of thickness 5 ∽ 19mm is divided into two kinds of thickness, realizes different size, the different-thickness production.The side compression roller 19 of welding unit is the composite roll sheet, and different product height difference is used different roller sheets, electronic adjustment folding size.
Fig. 5 is the integer schematic diagram, and sheet material has become the square and rectangular pipe material after welding, but there are differences with actual size, so need the tubing after four integer frames will be welded to reach the final tubing cross sectional shape that needs through integer.The top roll 20 of integer section integer unit is the composite roll sheet, realizes different size, the different-thickness production, and side roller 21 is a stationary roll, only needs electronic adjustment folding size to get final product, bottom roller 22 is a stationary roll.Finish the tubing production process through aligning, sawing, blanking, packing, warehouse-in etc. again after the integer.
It is brake forming gradually under the effect of each passage format roll basically that the present invention makes four bent angles of section bar, a spot of empty bight portion also is the roll forming chamber internal strain in sealing, the Forming Quality of angle can be controlled preferably, and the distortion only limit to the bight, section bar exists only in the bight because of the internal stress that modification causes, has kept original mechanical performance preferably, welding quality is good simultaneously, debugging is simple, greatly reduces energy consumption, has improved lumber recovery.When changing product specification, same production process only need be with each breast roller of thick profiled section by the product processes requirement, and electronic adjusting to needs get final product, and shortens roll changing time greatly.
The elaboration that the above embodiment of the present invention is detailed the specific embodiment of the present invention; but the present invention is not limited to above-mentioned embodiment; all can be by those skilled in the art based on the thinkable technological improvement of the foregoing description, all within protection scope of the present invention.
Claims (4)
1, a kind of square and rectangular steel forming technical method, with sheet material by the direct side's of the being bent into rectangle of design technology size, it is characterized in that: this process comprises thick profiled section, the precisive shaped section, welding section and integer section, described thick profiled section is for utilizing a cover composite (back-up) roll (9) through several time roll bending in thick shaping machine set sheet material, finishing first bent angle earlier is top two R arc angles of tubing, finishing second bent angle again is two R arc angles in bottom surface of tubing, the side of being pre-formed as is rectangular-shaped with sheet material, described composite (back-up) roll (9) is applicable to multiple side's rectangle specification, all bottom rollers (10) of composite (back-up) roll (9) are stationary roll, top roll (11) and the online electronic adjustment of side roller (12); It is the precisive shaped unit that syllogic roll, bottom roller (18) adopt electronic folding to adjust for stationary roll, side roller (17) that described precisive shaped section adopts top roll (13), and the roll in every segment limit of described syllogic roll is shared; Described welding section adopts the high-frequency welding method in the welding unit opening part of square rectangle to be carried out welded closed, and the side compression roller (19) of welding unit is the composite roll sheet that electronic folding is adjusted; It is the integer unit that composite roll sheet, bottom roller (22) adopt electronic folding to adjust for stationary roll, side roller (21) that described integer section adopts top roll (20).
2, square and rectangular steel forming technical method according to claim 1 is characterized in that: one of described thick profiled section overlaps composite (back-up) roll, is applicable to the square and rectangular pipe of 150mm * 150mm ∽ 500mm * 500mm, wall thickness 5mm ∽ 19mm.
3, square and rectangular steel forming technical method according to claim 2, it is characterized in that: described thickness 14.75mm sheet material through first frame (1) of thick shaping machine set finish to the 4th frame (4) first bent angle be tubing above the technical process of two R arc angles, finish the technical process that second bent angle is two the R arc angles in bottom surface of tubing through the 5th frame (5) to the 8th frame (8).
4, square and rectangular steel forming technical method according to claim 1, it is characterized in that: the syllogic roll that the top roll of described precisive shaped section (13) adopts is divided into three segment limits for the square and rectangular pipe with 150mm * 150mm ∽ 500mm * 500mm, and the roll in every segment limit is shared.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910017491A CN101637787A (en) | 2009-08-11 | 2009-08-11 | Square and rectangular steel forming technical method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910017491A CN101637787A (en) | 2009-08-11 | 2009-08-11 | Square and rectangular steel forming technical method |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125942A (en) * | 2010-09-07 | 2011-07-20 | 上海豪艺莱冷弯型钢有限公司 | Process for molding cold-bending welded special pipe with trapezoid cross section |
| CN102380525A (en) * | 2011-10-25 | 2012-03-21 | 佛山市正鑫隆电器实业有限公司 | Numerically controlled bending method of superlong and superhigh sheet metal part |
| CN102729047A (en) * | 2012-07-05 | 2012-10-17 | 德清县天创五金制品有限公司 | C-shaped steel hot extrusion production line |
| CN103286165A (en) * | 2013-03-29 | 2013-09-11 | 常州钢劲型钢有限公司 | Single-slit square steel pipe closing and straightening shaper production line |
| CN103302135A (en) * | 2013-06-20 | 2013-09-18 | 江苏丰立精密制管有限公司 | Manufacture method of high-intensity welded special pipe |
| CN103480684A (en) * | 2013-09-22 | 2014-01-01 | 武汉钢铁(集团)公司 | Method for cold roll forming of D-shaped section steel |
| CN103785705A (en) * | 2012-10-29 | 2014-05-14 | 苏州建莱机械工程技术有限公司 | High-frequency welding formation technology of rectangular gas collecting tubes |
| CN103801583A (en) * | 2014-02-13 | 2014-05-21 | 风范绿色建筑（常熟）有限公司 | Machining technique for high-specification directly formed square rectangular pipe |
| CN104249090A (en) * | 2014-09-18 | 2014-12-31 | 北京科技大学 | Ultrahigh-strength precise rectangular tube forming method and device |
| CN104307922A (en) * | 2014-11-14 | 2015-01-28 | 武汉钢铁(集团)公司 | Large depth-width ratio and high-strength rectangular cold roll forming method |
| CN104438432A (en) * | 2014-10-28 | 2015-03-25 | 武汉钢铁(集团)公司 | Cold-bending and straight-slit high-precision circular pipe molding method |
| CN104625645A (en) * | 2015-01-13 | 2015-05-20 | 邴绍翠 | Machining method for thin-wall squared tube |
| CN106238630A (en) * | 2015-07-23 | 2016-12-21 | 赵光林 | The processing method of cylindricality steel reinforcement cage |
| CN106583492A (en) * | 2017-01-03 | 2017-04-26 | 昆明理工大学 | Continuous roller type cold bending forming method for sharp-angled rectangular tube |
| CN108453153A (en) * | 2018-05-03 | 2018-08-28 | 石家庄富瑞沃机电设备有限公司 | A kind of roll device and forming method of square tube straight forming |
| CN109226329A (en) * | 2018-10-23 | 2019-01-18 | 中冶赛迪技术研究中心有限公司 | A kind of square tube formation system and method |
| CN109622803A (en) * | 2018-12-29 | 2019-04-16 | 四季沐歌(洛阳)太阳能有限公司 | A kind of engineering header shell tinuous production and production method |
| CN110355611A (en) * | 2019-08-19 | 2019-10-22 | 河北腾天焊管设备制造有限公司 | Square tube production line |
| CN110976562A (en) * | 2019-12-16 | 2020-04-10 | 深圳市鸿荣兴科技有限公司 | Bending machine for rectangular bending of plate |
| CN113118230A (en) * | 2021-04-21 | 2021-07-16 | 中冶赛迪技术研究中心有限公司 | Closed-type steel hot roll bending production composite process |
| CN113118231A (en) * | 2021-04-21 | 2021-07-16 | 中冶赛迪技术研究中心有限公司 | General process for closed-end steel hot roll bending production |
| CN113579652A (en) * | 2021-07-29 | 2021-11-02 | 济钢集团有限公司 | Production method and production device for producing sharp-angle square tubes |
| CN114713672A (en) * | 2022-05-09 | 2022-07-08 | 四川攀钢嘉德精工科技有限公司 | Continuous rolling warm-forming process for titanium plate |
| CN117066356A (en) * | 2023-10-17 | 2023-11-17 | 山东宏泰电器有限公司 | Bending riveting equipment for preparing refrigerator liner port-shaped coaming |
-
2009
- 2009-08-11 CN CN200910017491A patent/CN101637787A/en active Pending
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125942A (en) * | 2010-09-07 | 2011-07-20 | 上海豪艺莱冷弯型钢有限公司 | Process for molding cold-bending welded special pipe with trapezoid cross section |
| CN102125942B (en) * | 2010-09-07 | 2013-02-13 | 上海豪艺莱冷弯型钢有限公司 | Process for molding cold-bending welded special pipe with trapezoid cross section |
| CN102380525A (en) * | 2011-10-25 | 2012-03-21 | 佛山市正鑫隆电器实业有限公司 | Numerically controlled bending method of superlong and superhigh sheet metal part |
| CN102729047A (en) * | 2012-07-05 | 2012-10-17 | 德清县天创五金制品有限公司 | C-shaped steel hot extrusion production line |
| CN103785705A (en) * | 2012-10-29 | 2014-05-14 | 苏州建莱机械工程技术有限公司 | High-frequency welding formation technology of rectangular gas collecting tubes |
| CN103286165A (en) * | 2013-03-29 | 2013-09-11 | 常州钢劲型钢有限公司 | Single-slit square steel pipe closing and straightening shaper production line |
| CN103302135A (en) * | 2013-06-20 | 2013-09-18 | 江苏丰立精密制管有限公司 | Manufacture method of high-intensity welded special pipe |
| CN103480684A (en) * | 2013-09-22 | 2014-01-01 | 武汉钢铁(集团)公司 | Method for cold roll forming of D-shaped section steel |
| CN103801583A (en) * | 2014-02-13 | 2014-05-21 | 风范绿色建筑（常熟）有限公司 | Machining technique for high-specification directly formed square rectangular pipe |
| CN103801583B (en) * | 2014-02-13 | 2016-04-13 | 风范绿色建筑（常熟）有限公司 | Large gauge directly becomes square tube processing technology |
| CN104249090A (en) * | 2014-09-18 | 2014-12-31 | 北京科技大学 | Ultrahigh-strength precise rectangular tube forming method and device |
| CN104249090B (en) * | 2014-09-18 | 2016-12-07 | 北京科技大学 | A kind of superhigh intensity precision rectangular tube forming method and device |
| CN104438432A (en) * | 2014-10-28 | 2015-03-25 | 武汉钢铁(集团)公司 | Cold-bending and straight-slit high-precision circular pipe molding method |
| CN104307922A (en) * | 2014-11-14 | 2015-01-28 | 武汉钢铁(集团)公司 | Large depth-width ratio and high-strength rectangular cold roll forming method |
| CN104625645A (en) * | 2015-01-13 | 2015-05-20 | 邴绍翠 | Machining method for thin-wall squared tube |
| CN106238630A (en) * | 2015-07-23 | 2016-12-21 | 赵光林 | The processing method of cylindricality steel reinforcement cage |
| CN106238630B (en) * | 2015-07-23 | 2019-03-15 | 赵光林 | The processing method of cylindricality steel reinforcement cage |
| CN106583492A (en) * | 2017-01-03 | 2017-04-26 | 昆明理工大学 | Continuous roller type cold bending forming method for sharp-angled rectangular tube |
| CN108453153A (en) * | 2018-05-03 | 2018-08-28 | 石家庄富瑞沃机电设备有限公司 | A kind of roll device and forming method of square tube straight forming |
| CN109226329B (en) * | 2018-10-23 | 2023-11-28 | 中冶赛迪技术研究中心有限公司 | Square tube forming system and method |
| CN109226329A (en) * | 2018-10-23 | 2019-01-18 | 中冶赛迪技术研究中心有限公司 | A kind of square tube formation system and method |
| CN109622803A (en) * | 2018-12-29 | 2019-04-16 | 四季沐歌(洛阳)太阳能有限公司 | A kind of engineering header shell tinuous production and production method |
| CN110355611A (en) * | 2019-08-19 | 2019-10-22 | 河北腾天焊管设备制造有限公司 | Square tube production line |
| CN110976562A (en) * | 2019-12-16 | 2020-04-10 | 深圳市鸿荣兴科技有限公司 | Bending machine for rectangular bending of plate |
| CN110976562B (en) * | 2019-12-16 | 2021-05-04 | 深圳市鸿荣兴科技有限公司 | Bending machine for rectangular bending of plate |
| CN113118230A (en) * | 2021-04-21 | 2021-07-16 | 中冶赛迪技术研究中心有限公司 | Closed-type steel hot roll bending production composite process |
| CN113118231A (en) * | 2021-04-21 | 2021-07-16 | 中冶赛迪技术研究中心有限公司 | General process for closed-end steel hot roll bending production |
| CN113579652A (en) * | 2021-07-29 | 2021-11-02 | 济钢集团有限公司 | Production method and production device for producing sharp-angle square tubes |
| CN114713672A (en) * | 2022-05-09 | 2022-07-08 | 四川攀钢嘉德精工科技有限公司 | Continuous rolling warm-forming process for titanium plate |
| CN114713672B (en) * | 2022-05-09 | 2024-04-12 | 四川攀钢嘉德精工科技有限公司 | Continuous rolling and warm forming process for titanium plate |
| CN117066356A (en) * | 2023-10-17 | 2023-11-17 | 山东宏泰电器有限公司 | Bending riveting equipment for preparing refrigerator liner port-shaped coaming |
| CN117066356B (en) * | 2023-10-17 | 2023-12-22 | 山东宏泰电器有限公司 | Bending riveting equipment for preparing refrigerator liner port-shaped coaming |
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Application publication date: 20100203 |