CN114888077A - Composite production process for efficiently producing heavy H-shaped steel and steel sheet pile - Google Patents
Composite production process for efficiently producing heavy H-shaped steel and steel sheet pile Download PDFInfo
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- CN114888077A CN114888077A CN202210472245.9A CN202210472245A CN114888077A CN 114888077 A CN114888077 A CN 114888077A CN 202210472245 A CN202210472245 A CN 202210472245A CN 114888077 A CN114888077 A CN 114888077A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 127
- 239000010959 steel Substances 0.000 title claims abstract description 127
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 43
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 187
- 238000001816 cooling Methods 0.000 claims description 20
- 238000007688 edging Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- 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
- B21B1/095—U-or channel sections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention provides a composite production process for efficiently producing heavy H-shaped steel and steel sheet piles, which comprises three groups of rolling mills, namely a cogging mill zone, a tandem rolling mill zone and a finishing mill zone. Two cogging mills are arranged in the cogging mill area and are independently arranged; three universal/two-roller interchangeable rolling mills are arranged in the tandem rolling mill area; the finishing mill area is provided with four two-roll mills. The invention solves the specification limitation of the existing heavy H-shaped steel production line in the production of the steel sheet pile, particularly large and ultra-large steel sheet piles, can effectively improve the rolling efficiency of the H-shaped steel and the steel sheet pile, reduce the cost of the steel sheet pile and enhance the market competitiveness.
Description
Technical Field
The invention relates to the field of section steel rolling, in particular to an efficient composite production process of heavy H-shaped steel and large-specification and ultra-large-specification steel sheet piles.
Background
The heavy H-shaped steel is a general name of H-shaped steel with large size and large weight per unit length, and the national standard is only listed in the appendix at present. The steel sheet pile products only list U type, straight type and a small amount of Z type of small specification in national standard at present, and steel sheet pile application condition is better for Europe and America etc. and a large amount of Z shape, hat shape steel sheet pile etc. apply, these products have greater requirements for roller diameter, roller body length.
The domestic heavy H-shaped steel production line is not constructed in the initial stage, the rapid increase of the capacity demand of the heavy H-shaped steel cannot be fully predicted, and the design capacity requirement is not high, so that the tandem rolling mill is still arranged by adopting a universal-edging-universal traditional three-rack arrangement according to the traditional H-shaped steel rolling mill arrangement mode. Because the heavy H-shaped steel rolled piece has a large section, the product strength grade is high, and the load of the universal rolling mill is large, the required universal passes are more than that of the large H-shaped steel, and the rolling needs to be performed for 5-9 times in a reciprocating manner, so that the capacity of the tandem rolling mill is greatly reduced, the tandem rolling mill becomes the production bottleneck of the rolling line, and the capacity exertion of the rolling line is restricted. Moreover, the rolling mill specification, the transmission motor, the gear stand and the like of the edging mill are much smaller than those of a universal rolling mill, the universal rolling mill cannot be transformed basically, and the capacity of a tandem rolling mill area cannot be improved by adopting a universal edging process.
In the initial construction stage of a domestic heavy H-shaped steel production line, the production of large-sized steel sheet piles is basically not considered, so that the roll body of a two-roll of a universal/two-roll exchange rolling mill is small in length, all hole patterns required by the production of large-sized steel sheet piles cannot be arranged, the producible specifications can be determined only according to the width of a roll surface and the size of the hole pattern, and part of large-sized steel sheet pile products can be abandoned.
The production line of the steel sheet pile is an international current method, small-size products and large and medium H-shaped steel are produced in parallel, and large-size steel sheet piles are mostly produced by adopting a single-frame production mode, so that the production capacity is low, the temperature drop of rolled pieces is large, the product yield is low, and the production cost is high. The method is also the most important reason that the price of large steel sheet piles such as Z-shaped steel sheet piles is high internationally.
With the driving of the development of the domestic steel industry and the use requirement of the steel sheet piles, the domestic large-scale steel sheet pile production process realizes technical breakthrough, adopts the semi-continuous rolling production process, greatly improves the productivity of a rolling line, improves the weight of a rolled blank, improves the yield and greatly reduces the production cost. However, the number of universal rolling mills is increased on the semi-continuous rolling to realize the extremely uneconomical effect because of too many universal passes of heavy and large H-shaped steel. Therefore, the semi-continuous rolling line of the steel sheet pile cannot effectively produce heavy and large H-shaped steel products.
Considering that heavy H-shaped steel rolling mills and large steel sheet pile rolling mills have many common requirements on the rolling mills, and all the requirements are super-large diameter, super-high strength and super-large rolling force, so that the combination of two production lines is very necessary to form a composite production process of heavy H-shaped steel and large steel sheet piles.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide a composite production process for efficiently producing heavy H-shaped steel and steel sheet piles.
In order to achieve the aim, the composite production process for efficiently producing the heavy H-shaped steel and the steel sheet pile comprises three groups of rolling mills, namely a cogging mill area, a tandem rolling mill area and a finishing mill area; two cogging mills are arranged in the cogging mill area and are independently arranged; 3 universal/two-roll interchangeable rolling mills are arranged in the tandem rolling mill area; 4 two-roll mills are arranged in the finishing mill area; wherein the content of the first and second substances,
when rolling heavy H-shaped steel, three rolling mills in the tandem rolling mill area all adopt a universal mode and a reciprocating rolling mode, and a finishing mill set is not used; or when rolling heavy H-shaped steel, three rolling mills in the tandem rolling mill area adopt two universal modes and one edger, and a reciprocating rolling mode is adopted, so that a finishing mill group is not used;
when the steel sheet pile is rolled, the three rolling mills in the tandem rolling mill area all adopt a two-roller mode, and form a seven-stand continuous rolling mill set with four finishing mills, and the steel sheet pile is rolled into a steel sheet pile finished product at one time.
Furthermore, according to the rolling sequence, the rolling mill sequence comprises a first cogging rolling mill, a second cogging rolling mill, a first tandem rolling mill, a second tandem rolling mill, a third tandem rolling mill, a first finishing rolling mill, a second finishing rolling mill, a third finishing rolling mill and a fourth finishing rolling mill.
Further, the rolling process when rolling the heavy H-shaped steel specifically comprises the following steps:
two cogging mills are adopted, and a single stand rolls in a reciprocating manner; three tandem mills all adopt universal mills and are arranged in tandem for rolling in a reciprocating way; the two-roll finishing mill group is not used;
rolling the rolled piece for 5-7 times by a first cogging mill;
conveying the blank to a second cogging mill by a roller way, and rolling the blank for 3 times in the second cogging mill; then the moving platform moves to a front roller way of the tandem machine;
the tandem rolling mill is a three-stand rolling mill which completely adopts a universal rolling mill, and the stand is arranged as a universal-universal edging-universal; and rolling the rolled piece in a tandem rolling mill set for 3-7 times in a reciprocating manner to obtain a heavy H-shaped steel finished product, and sending the heavy H-shaped steel finished product to a cooling bed for cooling.
Further, the rolling process for rolling the heavy H-shaped steel specifically comprises the following steps:
two cogging mills are adopted, and a single stand rolls in a reciprocating manner; the tandem rolling mill adopts two universal rolling mills and a two-roll edging mill, and is arranged in tandem for rolling in a reciprocating way; the two-roll finishing mill group is not used; rolling the rolled piece by a first cogging mill for 5-7 times, and conveying the rolled piece to a second cogging mill by a roller way;
rolling for 3 times in a second cogging mill; then the moving platform moves to a front roller way of the tandem machine;
the tandem rolling mill adopts 2 universal +1 two-roller edgers, the stand is arranged as universal-edging-universal, the rolled piece is rolled for 5-9 times in a tandem rolling mill group, and the rolled piece is rolled into a heavy H-shaped steel finished product and sent to a cooling bed for cooling.
Further, the rolling process when rolling the steel sheet pile specifically comprises the following steps:
two cogging mills are adopted, and a single stand rolls in a reciprocating manner; three tandem mills all adopt a two-roll mode, and form a seven-stand continuous finishing mill group with four two-roll finishing mills to roll into a steel sheet pile finished product at one time;
rolling the rolled piece by a first cogging mill for 5-7 times, and conveying the rolled piece to a second cogging mill by a roller way;
rolling for 3 times in a second cogging mill; then the moving platform moves to a front roller way of the tandem machine;
the tandem rolling mill is a three-stand rolling mill, and all two-roll rolling mills are adopted; and forms a seven-stand continuous rolling unit together with four two-roll mills of the finishing mill unit; and the rolled piece passes through the cooling bed once, is rolled into a steel sheet pile finished product and is sent to the cooling bed for cooling.
When the H-shaped steel is rolled, a universal-universal edging-universal brand new hole type design concept can be adopted, the efficiency of a tandem rolling mill area is greatly improved, and the problem of eccentricity of a finished web of the H-shaped steel is effectively solved; and a universal-edging-universal hole type can also be adopted, so that the production is more mature and reliable.
The invention solves a plurality of problems of the existing heavy H-shaped steel production line and large steel sheet pile production line at home and abroad, provides a composite production process for efficiently producing heavy H-shaped steel and steel sheet piles, solves the bottleneck problem of a tandem rolling mill of the heavy H-shaped steel production line, solves the problem of specification limitation of large steel sheet piles produced on the existing heavy H-shaped steel production line, solves the problem of low capacity of steel sheet piles produced on the existing heavy H-shaped steel production line, and solves the problem of insufficient universal pass of heavy H-shaped steel produced on the existing large steel sheet pile production line. By adopting the invention, the capacity of the tandem rolling mill can be fully exerted to produce the H-shaped steel, and simultaneously, the large-specification steel sheet pile can be efficiently produced, the cost of the heavy H-shaped steel and the large-specification steel sheet pile can be effectively reduced, and the market competitiveness of enterprises can be enhanced.
Drawings
Fig. 1 is a process layout diagram of a composite production process for efficiently producing heavy H-beam steel and steel sheet piles according to an embodiment of the present invention:
FIG. 2 is a rolling mode when rolling heavy H-shaped steel, a tandem rolling mill adopts three universal rolling mills, the tandem rolling mill is arranged in tandem for reciprocating rolling, and a two-roller finishing mill group is not used;
FIG. 3 is a second rolling mode in rolling heavy H-section steel, in which a tandem rolling mill adopts two universal rolling mills and one two-roll edger, and is arranged in tandem for reciprocating rolling, and a two-roll finishing mill set is not used; .
Fig. 4 shows a rolling manner of rolling a steel sheet pile, in which a tandem mill adopts a two-roll mode, and forms a seven-stand continuous finishing mill group with four two-roll finishing mills to roll the steel sheet pile into a finished steel sheet pile at one time.
Description of reference numerals:
i-cogging mill zone: 1-cogging mill I; 2-cogging mill II; II-tandem mill section: 3-universal mill one; 4-universal mill II; 5-universal mill III; III-finishing mill zone: 6-two high finishing mill I; 7-two roll finishing mill II; 8-two-roll finishing mill III; 9-two high finishing mill four.
Detailed Description
The present invention is further described in conjunction with the appended drawings so that those skilled in the relevant art can further understand and implement the present invention. The illustrative embodiments and descriptions of the present invention are provided for illustration and not for limitation.
As shown in figure 1, the composite production process for efficiently producing the heavy H-shaped steel and the steel sheet pile comprises three groups of rolling mills, namely a cogging mill zone, a tandem rolling mill zone and a finishing mill zone. Two cogging mills are arranged in the cogging mill area and are independently arranged; three universal/two-roller interchange rolling mills are arranged in the tandem rolling mill area; the finishing mill area is provided with four two-roll mills.
As shown in FIG. 2, in order to roll heavy H-section steel, a tandem rolling mill adopts three universal rolling mills, is arranged in tandem for reciprocating rolling, and does not use a two-roll finishing mill group. Rolling the rolled piece by a first cogging mill for 5-7 times, conveying the rolled piece to a second cogging mill by a roller way, and rolling the rolled piece by the second cogging mill for 3 times; and then the moving platform moves to a front roller way of the tandem machine. The tandem rolling mill is a three-stand rolling mill, all universal rolling mills are adopted, the stand is arranged to be universal-universal edging-universal, and rolled pieces can have 3 universal passes each time, so that the rolling efficiency is greatly improved. And rolling the rolled piece in a tandem rolling mill group for 3-7 times in a reciprocating manner to obtain a heavy H-shaped steel finished product, and sending the heavy H-shaped steel finished product to a cooling bed for cooling. Because the heavy H-shaped steel rolled piece has a large section and high material strength, and the load of the universal rolling mill is large, the number of universal passes is more than that of the large H-shaped steel, if the traditional production mode shown in the figure 3 is adopted, the heavy H-shaped steel rolled piece needs to be rolled for 5-9 times in a reciprocating mode, the capacity of the tandem rolling mill is greatly reduced, the tandem rolling mill becomes the production bottleneck of a rolling line, and the capacity exertion of the rolling line is restricted. And the universal edging process is adopted, so that the rolling times of the tandem rolling mill can be reduced, the productivity of the tandem rolling mill is greatly improved, the production cost of heavy H-shaped steel is reduced, and the market competitiveness of enterprises is improved.
As shown in FIG. 3, in the second rolling mode for rolling heavy H-section steel, a tandem rolling mill adopts two universal rolling mills and a two-roll edger, and is arranged in tandem for reciprocating rolling, and a two-roll finishing mill group is not used. Rolling the rolled piece by a first cogging mill for 5-7 times, conveying the rolled piece to a second cogging mill by a roller way, and rolling the rolled piece by the second cogging mill for 3 times; and then the moving platform moves to a front roller way of the tandem machine. The tandem rolling mill is a three-stand rolling mill, 2 universal mills and 1 two-roller edger are adopted, the stand is arranged to be universal-edging-universal, and 2 universal passes can be provided for each pass of a rolled piece. And rolling the rolled piece in a tandem rolling mill set for 5-9 times in a reciprocating manner to obtain a heavy H-shaped steel finished product, and sending the heavy H-shaped steel finished product to a cooling bed for cooling.
As shown in fig. 4, in order to roll the steel sheet pile, the tandem mill adopts a two-roll mode, and forms a seven-stand continuous finishing mill group with four two-roll finishing mills to roll the steel sheet pile into a finished steel sheet pile at one time. Rolling the rolled piece by a first cogging mill for 5-7 times, conveying the rolled piece to a second cogging mill by a roller way, and rolling the rolled piece by the second cogging mill for 3 times; and then the moving platform moves to a front roller way of the tandem machine. The tandem rolling mill is a three-stand rolling mill, and all two-roll rolling mills are adopted; and the steel sheet pile is rolled into a steel sheet pile finished product by one-time passing through a seven-frame continuous rolling unit together with four two-roll mills of a finishing mill unit, and the steel sheet pile finished product is sent to a cooling bed for cooling. The steel sheet pile adopts a semi-continuous rolling production mode, so that the rolling mill efficiency of a rolling mill is improved, and the productivity of the rolling mill is fully exerted; and because the reciprocating rolling is not needed, the rolling time is short, the temperature drop of the rolled piece is small, and the heating temperature of the billet can be reduced, so that the high-efficiency and low-energy-consumption production is realized, the production cost is reduced, and the market competitiveness of enterprises is improved.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention.
Claims (5)
1. A composite production process for efficiently producing heavy H-shaped steel and steel sheet piles is characterized by comprising the following steps of: comprises three groups of rolling mills, namely a cogging mill zone, a tandem rolling mill zone and a finishing mill zone; two cogging mills are arranged in the cogging mill area and are independently arranged; three universal/two-roller interchangeable rolling mills are arranged in the tandem rolling mill area; the finishing mill area is provided with four two-roll mills; when rolling heavy H-shaped steel, the three rolling mills in the tandem rolling mill area all adopt a universal mode and a reciprocating rolling mode, and a finishing mill set is not used; or when rolling heavy H-shaped steel, three rolling mills in the tandem rolling mill area adopt two universal modes and one edger, and a reciprocating rolling mode is adopted, so that a finishing mill group is not used; when the steel sheet pile is rolled, the three rolling mills in the tandem rolling mill area all adopt a two-roller mode, and form a seven-stand continuous rolling mill set with four finishing mills, and the steel sheet pile is rolled into a steel sheet pile finished product at one time.
2. The composite production process for efficiently producing the heavy H-shaped steel and the steel sheet pile according to claim 1, which is characterized in that: according to the rolling sequence, the rolling mill sequence comprises a first cogging mill, a second cogging mill, a first tandem mill, a second tandem mill, a third tandem mill, a first finishing mill, a second finishing mill, a third finishing mill and a fourth finishing mill.
3. The composite production process for efficiently producing the heavy H-shaped steel and the steel sheet pile according to claim 1, which is characterized in that: the rolling process for rolling the heavy H-shaped steel specifically comprises the following steps:
two cogging mills are adopted, and a single stand rolls in a reciprocating manner; three tandem mills all adopt universal mills and are arranged in tandem for rolling in a reciprocating way; the two-roll finishing mill group is not used;
rolling the rolled piece by a first cogging mill for 5-7 times;
conveying the blank to a second cogging mill by a roller way, and rolling the blank for 3 times in the second cogging mill; then the moving platform moves to a front roller way of the tandem machine;
the tandem rolling mill is a three-stand rolling mill which completely adopts a universal rolling mill, and the stand is arranged as a universal-universal edging-universal; and rolling the rolled piece in a tandem rolling mill set for 3-7 times in a reciprocating manner to obtain a heavy H-shaped steel finished product, and sending the heavy H-shaped steel finished product to a cooling bed for cooling.
4. The composite production process for efficiently producing the heavy H-shaped steel and the steel sheet pile according to claim 1, which is characterized in that: the rolling process for rolling the heavy H-shaped steel specifically comprises the following steps:
two cogging mills are adopted, and a single stand rolls in a reciprocating manner; the tandem rolling mill adopts two universal rolling mills and a two-roll edging mill, and is arranged in tandem for rolling in a reciprocating way; the two-roll finishing mill group is not used;
rolling the rolled piece by a first cogging mill for 5-7 times, and conveying the rolled piece to a second cogging mill by a roller way;
rolling for 3 times in a second cogging mill; then the moving platform moves to a front roller way of the tandem machine;
the tandem rolling mill adopts 2 universal +1 two-roller edgers, the stand is arranged as universal-edging-universal, the rolled piece is rolled for 5-9 times in a tandem rolling mill group, and the rolled piece is rolled into a heavy H-shaped steel finished product and sent to a cooling bed for cooling.
5. The composite production process for efficiently producing the heavy H-shaped steel and the steel sheet pile according to claim 1, which is characterized in that: the rolling process for rolling the steel sheet pile comprises the following specific steps:
two cogging mills are adopted, and a single stand rolls in a reciprocating manner; three tandem mills all adopt a two-roll mode, and form a seven-stand continuous finishing mill group with four two-roll finishing mills to roll into a steel sheet pile finished product at one time; rolling the rolled piece by a first cogging mill for 5-7 times, and conveying the rolled piece to a second cogging mill by a roller way;
rolling for 3 times in a second cogging mill; then the moving platform moves to a front roller way of the tandem machine;
the tandem rolling mill is a three-stand rolling mill, and all two-roll rolling mills are adopted; and forms a seven-frame continuous rolling mill group together with a four-frame two-roll mill of the finishing mill group; and the rolled piece passes through the cooling bed once, is rolled into a steel sheet pile finished product and is sent to the cooling bed for cooling.
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| CN202210472245.9A CN114888077A (en) | 2022-04-29 | 2022-04-29 | Composite production process for efficiently producing heavy H-shaped steel and steel sheet pile |
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| CN202210472245.9A CN114888077A (en) | 2022-04-29 | 2022-04-29 | Composite production process for efficiently producing heavy H-shaped steel and steel sheet pile |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586705A (en) * | 1981-07-01 | 1983-01-14 | Kawasaki Steel Corp | Rolling method for shape steel |
| JPH07314003A (en) * | 1994-05-30 | 1995-12-05 | Sumitomo Metal Ind Ltd | Method for hot-rolling wide flange shape |
| JP2915406B1 (en) * | 1998-08-11 | 1999-07-05 | 川崎重工業株式会社 | Rolling equipment and rolling method for section steel |
| CN102794298A (en) * | 2012-08-16 | 2012-11-28 | 中冶赛迪工程技术股份有限公司 | Process and device for rolling H-shaped steel |
| CN107695094A (en) * | 2017-10-12 | 2018-02-16 | 刘庚申 | The production system of H profile steel |
| CN108620434A (en) * | 2018-04-24 | 2018-10-09 | 首钢长治钢铁有限公司 | A kind of X-shaped steel hot rolling molding process method |
| CN109663809A (en) * | 2018-12-18 | 2019-04-23 | 天津市中重科技工程有限公司 | Large-scale and ultra-large H-beam rolling mill practice |
| CN110814024A (en) * | 2019-11-13 | 2020-02-21 | 天津市中重科技工程有限公司 | Medium-large H-shaped steel multi-frame high-rhythm reversible rolling process |
| CN112872027A (en) * | 2020-12-25 | 2021-06-01 | 天津市中重科技工程有限公司 | Novel rolling process for large H-shaped steel |
| CN217858006U (en) * | 2022-04-29 | 2022-11-22 | 中冶华天工程技术有限公司 | Compound production system of heavy H shaped steel of high-efficient production and steel sheet pile |
-
2022
- 2022-04-29 CN CN202210472245.9A patent/CN114888077A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586705A (en) * | 1981-07-01 | 1983-01-14 | Kawasaki Steel Corp | Rolling method for shape steel |
| JPH07314003A (en) * | 1994-05-30 | 1995-12-05 | Sumitomo Metal Ind Ltd | Method for hot-rolling wide flange shape |
| JP2915406B1 (en) * | 1998-08-11 | 1999-07-05 | 川崎重工業株式会社 | Rolling equipment and rolling method for section steel |
| CN102794298A (en) * | 2012-08-16 | 2012-11-28 | 中冶赛迪工程技术股份有限公司 | Process and device for rolling H-shaped steel |
| CN107695094A (en) * | 2017-10-12 | 2018-02-16 | 刘庚申 | The production system of H profile steel |
| CN108620434A (en) * | 2018-04-24 | 2018-10-09 | 首钢长治钢铁有限公司 | A kind of X-shaped steel hot rolling molding process method |
| CN109663809A (en) * | 2018-12-18 | 2019-04-23 | 天津市中重科技工程有限公司 | Large-scale and ultra-large H-beam rolling mill practice |
| CN110814024A (en) * | 2019-11-13 | 2020-02-21 | 天津市中重科技工程有限公司 | Medium-large H-shaped steel multi-frame high-rhythm reversible rolling process |
| CN112872027A (en) * | 2020-12-25 | 2021-06-01 | 天津市中重科技工程有限公司 | Novel rolling process for large H-shaped steel |
| CN217858006U (en) * | 2022-04-29 | 2022-11-22 | 中冶华天工程技术有限公司 | Compound production system of heavy H shaped steel of high-efficient production and steel sheet pile |
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