CN113083901B - Device for solving problem of bottom flange inner combination of H-shaped steel in hot rolling process - Google Patents
Device for solving problem of bottom flange inner combination of H-shaped steel in hot rolling process Download PDFInfo
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- CN113083901B CN113083901B CN202110361080.3A CN202110361080A CN113083901B CN 113083901 B CN113083901 B CN 113083901B CN 202110361080 A CN202110361080 A CN 202110361080A CN 113083901 B CN113083901 B CN 113083901B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/088—H- or I-sections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0071—Levelling the rolled product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/06—Thermomechanical rolling
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Abstract
本发明公开了一种解决热轧过程中H型钢下翼缘内并的装置，在粗轧机后过桥的出口处设置楔形矫正结构；在楔形矫正结构在过桥底板投影上，楔形矫正结构朝向H型钢入口方向为尖端；楔形矫正结构的两侧面形成向外凸起的弧面；楔形矫正结构在H型钢出口处的宽度达到最大尺寸。采用上述技术方案，减少火焰切割机因型钢下翼缘内并切除过多原料，减少材料浪费，提高成材率指标；同时，楔形矫正结构通过螺栓与过桥底板连接，结构简单，且可以实现快速更换，提高工作效率，降低劳动强度；结构可以根据需要进行调节，满足不同规格产品的生产要求。
The invention discloses a device for solving the inner merging of the lower flange of H-section steel in the process of hot rolling. A wedge-shaped rectification structure is arranged at the exit of a bridge after a rough rolling mill; on the projection of the wedge-shaped rectification structure on the bridge floor, the wedge-shaped rectification structure faces The entrance direction of the H-beam is the tip; the two sides of the wedge-shaped correction structure form outwardly convex arc surfaces; the width of the wedge-shaped correction structure at the outlet of the H-beam reaches the maximum size. By adopting the above technical solution, the flame cutting machine can reduce the cutting of excessive raw materials in the lower flange of the section steel, reduce material waste, and improve the yield index; at the same time, the wedge-shaped rectifying structure is connected with the bridge bottom plate through bolts, which has a simple structure and can achieve rapid Replacement, improve work efficiency and reduce labor intensity; the structure can be adjusted as needed to meet the production requirements of products of different specifications.
Description
Technical Field
The utility model belongs to the technical field of section steel rolling production equipment, and relates to a device for solving the problem of bottom flange inward combination of H-shaped steel in a hot rolling process.
Background
The H-shaped steel is novel economic building steel, has the advantages of economic and reasonable section shape, good mechanical property, large section modulus, light weight and metal saving, and is commonly used in the fields of large buildings requiring large bearing capacity and good section stability, bridges, ships, hoisting and transporting machinery, equipment foundations and the like.
The H-shaped steel rolling line in the prior art adopts a 5+10 full continuous rolling mode, and the production process flow is as follows:
feeding a rack, heating by a stepping heating furnace, removing phosphorus by high-pressure water, rolling by 1-5 roughing mills, cutting a tongue by a flame cutting machine, rolling by 6-15 medium finishing mills, segmenting by flying shears, cooling by a cooling bed, straightening by a straightening machine, collecting in rows, sawing by a cold saw to length, inspecting the rack, labeling, stacking and bundling.
The yield is an important reference for measuring the utilization degree of metal in the production process, reflects the metal yield condition in the production process, and is also one of the key indexes for examining branch plants in the division of the division. In the process flow, the tongue cutting link of the flame cutting machine generally cuts the inward closed part of the lower flange of the raw material rolled by the 5 th rolling mill, so that the steel clamping accident in the rolling link of the middle finishing mill is avoided, the production rhythm of a production line is influenced, the loss of the material of a rolled piece is caused while cutting, and the yield index of the product is reduced.
Patent document with application number 201720867562.5 discloses an H shaped steel edge of a wing levelling machine, including the frame main part, the bilateral symmetry of frame main part is provided with the driving roller, and the top of driving roller is provided with the top roll that is used for rolling tight H shaped steel edge of a wing, and the bilateral symmetry of top roll is provided with the backing roll, is provided with pressure sensor in the backing roll for detect pressure value between backing roll and the H shaped steel. The utility model discloses a can detect the pressure value between H shaped steel and the backing roll, can avoid the backing roll to lead to the fact H shaped steel to take place deformation because of pressure lasts too greatly through the adjustment pressure value.
Patent document No. 201510311819.4 discloses a flange correcting device for H-section steel and a use method thereof. The device can be used for correcting the flanges of the narrow-flange H-shaped steel and the wide-flange H-shaped steel.
Patent application No. 201320420394.7 discloses a straightening machine for a flange plate of H-beam steel, which comprises a top pressing wheel supported on the flange plate at the bottom of the H-beam steel and side pressing wheels clamped at two sides of a web plate. The utility model discloses a set up the tight drive arrangement in top in its central lower part, make and be rectified the edge of a wing and produce bending deformation, resume through elasticity and reach required correction shape to the realization is corrected in succession the H shaped steel edge of a wing, makes it reach quality standard.
Patent document No. 201810529622.1 discloses an H-shaped steel flange plate straightening device, including: the device comprises a base, a right fixed seat, a guide rail, a left sliding seat, an open slot, a first fixed block, a first air cylinder, a second fixed block, a guide rod, an L-shaped block, a second air cylinder, a straightening air cylinder, a pressing block and a reinforcing block. The device drives briquetting round trip movement through the aligning cylinder and straightens the flange board, has the advantage that improves straightening efficiency, practices thrift the manpower.
The patent document with the application number of 201920208877.8 discloses an H-shaped steel flange straightening machine, which comprises a base, wherein first shells are welded on two sides of the top of the base, a second shell is welded on a central shaft of the top of the base, vertical rods are welded on two sides of the top of the second shell, the tops of the vertical rods are fixedly connected with a first hydraulic machine through bolts, a first telescopic rod is connected with the output end of the first hydraulic machine through a key, one end of the first telescopic rod extends into the second shell, and the first shell is internally of a cavity structure; the utility model can quickly realize the purpose of correcting the H steel wing through the structure formed by the parts such as the first hydraulic machine, the first telescopic rod, the motor, the first spring, the first pressing plate, the second pressing plate, the cam, the third pressing plate and the like.
The utility model 'an H-shaped steel flange straightening machine' with the application number of 201920310705.1 discloses an H-shaped steel flange straightening machine, which comprises a supporting table, a driving motor, a cylinder rotating shaft and an upper pressing wheel, a driving motor is arranged on the supporting platform, the output end of the driving motor is connected with the rotating shaft, and the rotating shaft is arranged on the supporting platform, the rotating shaft is connected with a roller, a belt is connected between the rotating shafts, the middle part of the supporting platform is fixed with a fixing plate, and the inner side of the fixed plate is provided with a cylinder, the surface of the movable rod is fixed with a first rod body, the inner side of the first rod body is connected with a second rod body through a spring, the surface of the limiting block is provided with a roller, the output end of the cylinder is connected with a connecting plate, and a connecting rod is fixed on the connecting plate, an upper pressing wheel is arranged on the connecting rod, and a correcting block is fixed at the bottom of the connecting rod. This H shaped steel edge of a wing levelling machine is provided with the stopper, can fix H shaped steel's middle part is spacing through 2 stoppers, avoids appearing the problem of empting when the transmission.
After retrieval, the existing straightening devices are used for straightening or correcting the flange of a finished section steel product, and no straightening device for the inner combination of the lower flange of the raw material after the rolling of a roughing mill is used.
Disclosure of Invention
The utility model provides a device for solving the problem of bottom flange inward combination of H-shaped steel in the hot rolling process, and aims to solve the problem of bottom flange inward combination of H-shaped steel in the hot rolling process.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the device for solving the problem of the internal combination of the lower flange of the H-shaped steel in the hot rolling process is arranged on a gap bridge behind a roughing mill, and the H-shaped steel is supported on a gap bridge bottom plate through the flange at the lower side in a web horizontal state; a wedge-shaped correcting structure is arranged at an outlet of the rear gap bridge of the roughing mill; on the projection of the wedge-shaped correcting structure on the gap bridge bottom plate, the wedge-shaped correcting structure is a tip towards the inlet direction of the H-shaped steel; two side surfaces of the wedge-shaped correcting structure form cambered surfaces protruding outwards; the width of the wedge-shaped correcting structure at the outlet of the H-shaped steel reaches the maximum size.
The maximum width dimension of the wedge-shaped correcting structure at the outlet of the H-shaped steel is the same as the standard dimension of the lower flange of the H-shaped steel.
The height dimension of the wedge-shaped correcting structure is smaller than the depth dimension of the flange of the H-shaped steel from the side edge to the web plate.
The wedge-shaped correcting structure is fixed on the gap bridge bottom plate through a fastening bolt.
Two sides of the H-shaped steel are respectively provided with a gap bridge side guide plate, and the gap bridge side guide plates are connected with the gap bridge bottom plate through fastening bolts; the two bridge side guide plates are perpendicular to the gap bridge bottom plate; the two bridge side guide plates form an opening at an inlet and an opening at an outlet of the H-shaped steel, and the size of the opening at the inlet is larger than that of the opening at the outlet.
The size of an opening at the outlet of the side guide plate of the bridge is larger than the distance between the outer surfaces of two flanges of the H-shaped steel.
The bolt hole of the gap bridge bottom plate for mounting the gap bridge side guide plate is a waist-shaped hole, and the length direction of the bolt hole is vertical to the symmetrical plane of the wedge-shaped correcting structure.
The wedge-shaped correcting structures adopt two symmetrical structures which are symmetrical by the symmetrical planes of the wedge-shaped correcting structures and are connected by adopting an adjusting screw rod; the adjusting screw rod adopts the way that left and right threads at two ends are respectively matched and connected with the threaded holes of the two symmetrical structures; two end parts of the adjusting screw rod adopt a straight groove, a cross groove or an inner hexagonal structure; the bolt hole of the gap bridge bottom plate for installing the wedge-shaped correcting structure is a waist-shaped hole, and the length direction of the bolt hole is vertical to the symmetrical plane of the wedge-shaped correcting structure.
The gap bridge bottom plate is provided with two guide grooves perpendicular to the symmetrical plane of the wedge-shaped correcting structure, and the two symmetrical structures of the wedge-shaped correcting structure are provided with guide protrusions in sliding fit with the guide grooves.
By adopting the technical scheme, the excessive raw materials in the lower flange of the section steel and cut off by the flame cutting machine are reduced, the material waste is reduced, and the yield index is improved; meanwhile, the wedge-shaped correcting structure is connected with the gap bridge bottom plate through the bolt, so that the structure is simple, the quick replacement can be realized, the working efficiency is improved, and the labor intensity is reduced; the structure can be adjusted as required, satisfies the production requirement of different specification products.
Drawings
The contents of the drawings and the reference numbers in the drawings are briefly described as follows:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a bottom view of the structure of FIG. 1;
FIG. 3 is a schematic view of an adjustable pitch wedge orthotic structure;
FIG. 4 is a schematic top view of an adjustment guide of the wedge orthotic structure;
figure 5 is a horizontal side partial view of the wedge orthotic structure of figure 4.
Labeled as:
1. the rear gap bridge of the roughing mill comprises a gap bridge, 2H-shaped steel, 3 wedge-shaped correcting structures, 4 gap bridge side guide plates, 5 gap bridge bottom plates, 6 fastening bolts, 7 adjusting screw rods, 8 guide grooves, 9 guide bulges.
Detailed Description
The following detailed description of the embodiments of the present invention will be given in order to provide those skilled in the art with a more complete, accurate and thorough understanding of the inventive concept and technical solutions of the present invention.
The structure of the utility model as shown in fig. 1 and fig. 2 is a device for solving the problem of the inner combination of the lower flange of the H-shaped steel in the hot rolling process, which is arranged on a rear gap bridge 1 of a roughing mill, wherein the H-shaped steel 2 is supported on a gap bridge bottom plate 5 through a lower flange in a state that a web is horizontal.
In order to solve the problems and the defects of the prior art and realize the aim of solving the problem of the internal combination of the lower flange of the H-shaped steel in the hot rolling process, the utility model adopts the technical scheme that:
as shown in figures 1 and 2, the device for solving the problem of the inner combination of the lower flange of the H-shaped steel in the hot rolling process of the utility model is characterized in that a wedge-shaped correcting structure 3 is arranged at the outlet of a rear gap bridge 1 of a roughing mill; on the projection of the wedge-shaped correcting structure 3 on the gap bridge bottom plate 5, the wedge-shaped correcting structure 3 is a tip towards the inlet direction of the H-shaped steel 2; two side surfaces of the wedge-shaped correcting structure 3 form cambered surfaces protruding outwards; the width of the wedge-shaped straightening structure 3 at the outlet of the H-shaped steel 2 reaches the maximum size.
The sharp-pointed end of the wedge-shaped correcting structure 3 faces the input side of the H-shaped steel, and guides the lower flange of the H-shaped steel to correctly enter the correcting device.
According to the technical scheme, the wedge-shaped device is additionally arranged at the outlet of the rear gap bridge 1 of the roughing mill, so that the problem of the inner side combination of the lower flange of the raw material can be solved, the material waste caused by the fact that the head of the raw material needs to be cut off by a flame cutting machine due to the inner side combination of the lower flange of the raw material after being rolled by the roughing mill is avoided, and the utilization degree of the raw material, namely the yield index, is improved; meanwhile, the gap bridge bottom plate 5 is provided with a bolt hole, and the wedge-shaped correcting device is connected with the gap bridge bottom plate 5 through a bolt, and has the advantages of simple structure, convenience in maintenance, low cost and the like; and the quick replacement can be realized, the working efficiency is improved, and the labor intensity is reduced.
The maximum width dimension of the wedge-shaped correcting structure 3 at the outlet of the H-shaped steel 2 is the same as the standard dimension of the lower flange of the H-shaped steel 2. When in correction, the inner and rear lower flanges of the H-shaped steel are extruded and slid from the two side surfaces of the wedge-shaped correction structure 3, so that the wedge-shaped correction structure deforms and expands, and the size of the wedge-shaped correction structure returns to normal.
The height dimension of the wedge-shaped correcting structure 3 is smaller than the depth dimension of the flange of the H-shaped steel from the side edge to the web plate.
The wedge-shaped correcting structure 3 is fixed on the gap bridge bottom plate 5 through a fastening bolt 6. When the orthotic device is worn and cannot be used further, a quick change may be achieved.
Two sides of the H-shaped steel 2 are respectively provided with a gap bridge side guide plate 4, and the gap bridge side guide plates 4 are connected with a gap bridge bottom plate 5 through fastening bolts 6; the two bridge side guide plates 4 are both vertical to the bridge bottom plate 5; the two bridge side guide plates 4 form an opening at an inlet and an opening at an outlet of the H-shaped steel 2, and the size of the opening at the inlet is larger than that of the opening at the outlet.
The wedge-shaped correcting structure 3 is installed at the outlet of the gap bridge through the fastening bolt 6 and is positioned in the middle of the two gap bridge side guide plates 4, and the shape of the two lower flanges of the H-shaped steel is guaranteed to be consistent after the H-shaped steel passes through the correcting structure.
When the wedge-shaped correcting structure 3 is worn and cannot be used continuously, the fastening bolt 6 is disassembled and then is quickly replaced.
The size of an opening at the outlet of the bridge side guide plate 4 is larger than the distance between the outer surfaces of the two flanges of the H-shaped steel 2.
The first embodiment is as follows:
the bolt holes for installing the gap bridge side guide plates 4 on the gap bridge bottom plate 5 are waist-shaped holes, and the length direction of the bolt holes is vertical to the symmetrical plane of the wedge-shaped correcting structure 3. The function of the device is that when the opening of the gap bridge side guide plate 4 is adjusted, the fastening bolt has a certain position adjustment amount.
The two gap bridge side guide plates 4 and the gap bridge bottom plate 5 are connected through bolts, the opening degree of the gap bridge side guide plates 4 can be adjusted, and an appropriate distance is kept between the gap bridge side guide plates and the H-shaped steel, so that the H-shaped steel of various types and specifications can smoothly and stably pass through.
By adopting the structure, the adjustable plastic pipe can be adjusted as required, and the production requirements of products with different specifications are met. After the adjustment meets the requirements, the gap bridge side guide plate 4 is fastened on the gap bridge bottom plate 5 through a fastening bolt.
Example two:
as shown in fig. 3, in order to adapt to H-shaped steel with different specifications, the following wedge-shaped straightening structure 3 is adopted:
the wedge-shaped correcting structure 3 adopts two symmetrical structures which are symmetrical by the symmetrical planes of the wedge-shaped correcting structure and is connected by an adjusting screw rod 7; the adjusting screw rod 7 is respectively matched and connected with the two threaded holes with symmetrical structures by adopting left and right threads at two ends; two end parts of the adjusting screw rod 7 adopt a straight groove, a cross groove or an inner hexagonal structure; the bolt hole for installing the wedge-shaped correcting structure 3 on the gap bridge bottom plate 5 is a waist-shaped hole, and the length direction of the bolt hole is vertical to the symmetrical plane of the wedge-shaped correcting structure 3.
The wedge-shaped correcting structure 3 is a hollow petal-shaped structure, and an adjusting lead screw 7 for adjusting the opening degree is arranged in the wedge-shaped correcting structure.
The wedge-shaped correcting structure 3 is connected with the gap bridge bottom plate 5 through a fastening bolt 6. During adjustment, the fastening bolt is loosened, the adjusting screw rod 7 is rotated by a tool (such as a straight screwdriver, a cross screwdriver or an inner hexagonal wrench), the wedge-shaped correcting structure 3 is adjusted, and after the wedge-shaped correcting structure 3 is in place, the wedge-shaped correcting structure 3 is fastened on the gap bridge bottom plate 5 by the fastening bolt 6.
Aiming at incoming materials of different specifications, the inner correction of the lower flanges of the incoming materials of different sizes can be realized by adjusting the adjusting screw rod 7 of the wedge-shaped correction structure 3 to a proper size.
The wedge-shaped correcting structure 3 can also have different sizes and specifications, so that the wedge-shaped correcting structure can be matched with the sizes of flanges of different incoming materials.
Example three:
on the basis of the second embodiment, as shown in fig. 4 and 5, in order to prevent the wedge-shaped correcting structure 3 from irregularly changing in position when adjusting the spacing, the following structure is adopted:
the gap bridge bottom plate 5 is provided with two guide grooves 8 perpendicular to the symmetrical plane of the wedge-shaped correcting structure 3, and the two symmetrical structures of the wedge-shaped correcting structure 3 are provided with guide protrusions 9 in sliding fit with the guide grooves 8.
Therefore, the wedge-shaped correcting structure 3 can only move along the direction of the guide groove 8, and the stability and the reliability of the adjustment are ensured.
The utility model has been described above with reference to the accompanying drawings, it is obvious that the utility model is not limited to the specific implementation in the above-described manner, and it is within the scope of the utility model to apply the inventive concept and solution to other applications without substantial modification.
Claims (10)
1. The utility model provides a solve device that hot rolling in-process H shaped steel bottom flange is interior and is connected, sets up on gap bridge (1) behind the roughing mill, H shaped steel (2) with web horizontal state, through the flange support of downside on gap bridge bottom plate (5), its characterized in that: a wedge-shaped correcting structure (3) is arranged at an outlet of the rear gap bridge (1) of the roughing mill; on the projection of the wedge-shaped correcting structure (3) on the gap bridge bottom plate (5), the wedge-shaped correcting structure (3) is a tip towards the inlet direction of the H-shaped steel (2); two side surfaces of the wedge-shaped correcting structure (3) form cambered surfaces protruding outwards; the width of the wedge-shaped correcting structure (3) at the outlet of the H-shaped steel (2) reaches the maximum size.
2. The device for solving the problem of the bottom flange inner combination of the H-shaped steel in the hot rolling process according to claim 1 is characterized in that: the maximum width dimension of the wedge-shaped correcting structure (3) at the outlet of the H-shaped steel (2) is the same as the standard dimension of the lower flange of the H-shaped steel (2).
3. The device for solving the problem of the bottom flange inner combination of the H-shaped steel in the hot rolling process according to claim 1 is characterized in that: the height dimension of the wedge-shaped correcting structure (3) is smaller than the depth dimension of the flange of the H-shaped steel from the side edge to the web plate.
4. The device for solving the problem of the bottom flange inner combination of the H-shaped steel in the hot rolling process according to claim 1 is characterized in that: the wedge-shaped correcting structure (3) is fixed on the gap bridge bottom plate (5) through a fastening bolt (6).
5. The device for solving the problem of the bottom flange inner combination of the H-shaped steel in the hot rolling process according to claim 1 is characterized in that: two sides of the H-shaped steel (2) are respectively provided with a gap bridge side guide plate (4), and the gap bridge side guide plates (4) are connected with a gap bridge bottom plate (5) through fastening bolts (6); the two gap bridge side guide plates (4) are vertical to the gap bridge bottom plate (5); the two gap bridge side guide plates (4) form an opening at an inlet and an opening at an outlet of the H-shaped steel (2), and the size of the opening at the inlet is larger than that of the opening at the outlet.
6. The apparatus for solving the problem of bottom flange inward-combining of H-shaped steel in the hot rolling process according to claim 5, wherein: the opening size of the outlet of the bridge-crossing side guide plate (4) is larger than the distance size of the outer surfaces of the two flanges of the H-shaped steel (2).
7. The apparatus for solving the problem of bottom flange inward-combining of H-shaped steel in the hot rolling process according to claim 5, wherein: the bolt holes for installing the gap bridge side guide plates (4) on the gap bridge bottom plate (5) are waist-shaped holes, and the length direction of the bolt holes is perpendicular to the symmetrical plane of the wedge-shaped correcting structure (3).
8. The device for solving the problem of the bottom flange inner combination of the H-shaped steel in the hot rolling process according to claim 4 is characterized in that: the wedge-shaped correcting structures (3) are two symmetrical structures which are symmetrical by the symmetrical planes of the wedge-shaped correcting structures and are connected by adjusting screw rods (7); the adjusting screw rod (7) is respectively matched and connected with the two threaded holes with symmetrical structures by adopting left and right threads at two ends; two end parts of the adjusting screw rod (7) adopt a straight groove, a cross groove or an inner hexagonal structure.
9. The apparatus for solving the problem of bottom flange inward-combining of H-shaped steel in the hot rolling process according to claim 8, wherein: the bolt hole for installing the wedge-shaped correcting structure (3) on the gap bridge bottom plate (5) is a waist-shaped hole, and the length direction of the bolt hole is vertical to the symmetrical plane of the wedge-shaped correcting structure (3).
10. The apparatus for solving the problem of bottom flange inward-combining of H-shaped steel in the hot rolling process according to claim 8, wherein: the gap bridge bottom plate (5) is provided with two guide grooves (8) which are perpendicular to the symmetrical plane of the wedge-shaped correcting structure (3), and the two symmetrical structures of the wedge-shaped correcting structure (3) are provided with guide protrusions (9) which are in sliding fit with the guide grooves (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110361080.3A CN113083901B (en) | 2021-04-02 | 2021-04-02 | Device for solving problem of bottom flange inner combination of H-shaped steel in hot rolling process |
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| CN202110361080.3A CN113083901B (en) | 2021-04-02 | 2021-04-02 | Device for solving problem of bottom flange inner combination of H-shaped steel in hot rolling process |
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| CN113857299B (en) * | 2021-08-24 | 2024-06-04 | 苏州斯科勒自动化设备有限公司 | Screw rod straightening device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63242420A (en) * | 1987-03-30 | 1988-10-07 | Kawasaki Steel Corp | Method for straightening squareness of flange of h-shape |
| JPH0999301A (en) * | 1995-10-04 | 1997-04-15 | Nippon Steel Corp | Rolling method for profiles with web and flange |
| JP3289669B2 (en) * | 1998-03-10 | 2002-06-10 | 日本鋼管株式会社 | Roller straightening method and device for section steel |
| KR101003261B1 (en) * | 2008-10-28 | 2010-12-21 | 김동철 | Method of straightening the steel |
| CN203635676U (en) * | 2013-08-27 | 2014-06-11 | 安徽鸿路钢结构(集团)股份有限公司 | Auxiliary fixture for rectifying warped edges of H steel end |
| CN203578396U (en) * | 2013-11-29 | 2014-05-07 | 马鞍山市恒毅机械制造有限公司 | Guide block for slide outlet |
| CN104923587A (en) * | 2015-06-09 | 2015-09-23 | 湖北精工钢结构有限公司 | H-steel flange correction device and using method thereof |
| CN205628992U (en) * | 2016-04-28 | 2016-10-12 | 中煤第五建设有限公司 | Hydraulic pressure levelling machine |
| JP6477618B2 (en) * | 2016-07-04 | 2019-03-06 | Ｊｆｅスチール株式会社 | Method for rolling shape steel and rolling mill |
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Effective date of registration: 20251224 Address after: 243000 Anhui city of Ma'anshan province Jiuhua Mountain Rain Road No. 8 Patentee after: Ma'anshan Iron and Steel Co.,Ltd. Country or region after: China Address before: 243041 8 Jiuhua Road, Yushan, Ma'anshan, Anhui Patentee before: MAANSHAN IRON & STEEL Co.,Ltd. Country or region before: China |