CN105344710A - Rolling mill and rolling method for H-shaped steel - Google Patents
Rolling mill and rolling method for H-shaped steel Download PDFInfo
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- CN105344710A CN105344710A CN201510925021.9A CN201510925021A CN105344710A CN 105344710 A CN105344710 A CN 105344710A CN 201510925021 A CN201510925021 A CN 201510925021A CN 105344710 A CN105344710 A CN 105344710A
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- Prior art keywords
- rolling pass
- groove rolling
- profile steel
- milling train
- groove
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
Abstract
The invention discloses a rolling mill for H-shaped steel. A first H-shaped rolling hole pattern and a second H-shaped rolling hole pattern are formed in the same pair of rollers of the rolling mill in order to specially roll medium-sized and small specifications of H-shaped steel of which the total height is not larger than 200mm and the width of a wing edge is not larger than 200mm, so that two sets of H-shaped steel can be obtained after a full-procedure process; the unit yield of the H-shaped steel is doubled without increasing the unit cost, so remarkable energy conservation effect and remarkable economical benefit are realized. Based on this, various technological steps and various technological parameters are further optimized, so that the rolling mill disclosed by the invention is capable of working normally and producing required target H-shaped steel. The invention also discloses a rolling method for the H-shaped steel.
Description
Technical field
The present invention relates to rolling of sectional iron technical field, especially relate to a kind of milling train and milling method of H profile steel.
Background technology
H profile steel is as a kind of economic section shaped steel, compare with common I-steel, have that modulus of section is large, bending resistance be strong, light unit weight, good looking appearance, structure are convenient, save man-hour, reduce construction costs and can be processing regenerated etc. advantage, be widely used in the engineering structures such as industrial equipment framework, LARGE SPAN STEEL BRIDGE component, machinery, vehicle, boats and ships frame structure, underground railway and overpass component such as the structural elements such as industry and the beam in civil buildings steel construction or post, the steel construction support bracket of industrial structure, petrochemical industry and electric power.In recent years, along with the increase of H profile steel demand, H profile steel output, also in continuous increase, is also deepening constantly the theoretical research of H profile steel rolling.
The production technology of current H type shaped steel is very ripe, and particularly, the production technology of small dimension is more stable.At present, steel market is not too prosperous, and cost pressure is given prominence to, and therefore in the urgent need to researching and developing new milling train and milling method, with when not increasing unit cost, improves the specific yield of H profile steel.
Therefore, how providing a kind of follow-on milling train and/or milling method, making it possible to when not increasing unit cost, the specific yield improving H profile steel is the technical problem that those skilled in the art need solution badly.
Summary of the invention
The object of the present invention is to provide a kind of milling train of H profile steel, this milling train when not increasing unit cost, can improve the specific yield of H profile steel.Another object of the present invention is the milling method of the production H profile steel using above-mentioned milling train.
For solving above-mentioned technical problem, technical scheme provided by the invention is:
A kind of milling train of H profile steel, comprise and to be a set ofly arranged on a pair roller, for a H groove rolling pass of rolled h-section steel beam, a set ofly in addition to be arranged on a pair roller, for the 2nd H groove rolling pass of rolled h-section steel beam, a described H groove rolling pass and described 2nd H groove rolling pass are positioned on same a pair roller of described milling train, and a described H groove rolling pass and described 2nd H groove rolling pass along the roll of described milling train longitudinal center line in parallel and compartment of terrain distribute;
Also comprise and be arranged between a described H groove rolling pass and described 2nd H groove rolling pass, and for the formation of the connecting plate hole slot of connecting plate, a described H groove rolling pass is connected by described connecting plate hole slot with described 2nd H groove rolling pass;
A described H groove rolling pass is applicable to rolling total height and is not more than 200mm and flange width is not more than the H profile steel of 200mm;
Described 2nd H groove rolling pass is applicable to rolling total height and is not more than 200mm and flange width is not more than the H profile steel of 200mm;
Described milling train comprises the big mill for roughing and the finishing mill for finish rolling.
Preferably, a described H groove rolling pass is identical with the structure of described 2nd H groove rolling pass.
Preferably, there is difference in the structure of a described H groove rolling pass and described 2nd H groove rolling pass.
Compared with prior art, the invention provides a kind of milling train of H profile steel, the present invention by arranging a H groove rolling pass and the 2nd H groove rolling pass on same a pair roller of milling train, be specifically designed to rolling total height and be not more than 200mm and flange width is not more than the middle small dimension H profile steel of 200mm, be not suitable for other H profile steel compared with large gauge of process, make after a full-range process, once can obtain two cover H profile steel, when not increasing unit cost, the specific yield of H profile steel is increased to original twice, energy-saving effect is remarkable, remarkable in economical benefits.The present invention on this basis, optimizes every processing step and various process parameters further, this milling train can normally be worked, the H profile steel needed for output goal.One H groove rolling pass can be identical with the structure of the 2nd H groove rolling pass, also can be different, when the two structure is identical, final output be construction profile identical two cover H profile steel, when there is difference in the two structure, final output be construction profile different two cover H profile steel, thus make when not changing roll, after same whole process process, both can output structure identical two cover H profile steel, also can output structure not identical two cover H profile steel.
The present invention also provides a kind of milling method of H profile steel, use the milling train being used for rolled h-section steel beam, described milling train comprises and is a set ofly arranged on a pair roller, for a H groove rolling pass of rolled h-section steel beam, a set ofly in addition be arranged on a pair roller, for the 2nd H groove rolling pass of rolled h-section steel beam, a described H groove rolling pass and described 2nd H groove rolling pass are positioned on same a pair roller of described milling train, and a described H groove rolling pass and described 2nd H groove rolling pass along the roll of described milling train longitudinal center line in parallel and compartment of terrain distribute,
Also comprise and be arranged between a described H groove rolling pass and described 2nd H groove rolling pass, and for the formation of the connecting plate hole slot of connecting plate, a described H groove rolling pass is connected by described connecting plate hole slot with described 2nd H groove rolling pass;
A described H groove rolling pass is applicable to rolling total height and is not more than 200mm and flange width is not more than the H profile steel of 200mm;
Described 2nd H groove rolling pass is applicable to rolling total height and is not more than 200mm and flange width is not more than the H profile steel of 200mm;
Described milling train comprises the big mill for roughing and the finishing mill for finish rolling;
Comprise the following steps:
1) utilize big mill that special-shaped strand is carried out roughing;
2) finishing mill is utilized by step 1) strand after roughing process that obtains carries out finish rolling, and obtain the middle left and right two linked into an integrated entity by connecting plate and overlap H profile steel;
3) shear is utilized by step 2) two, the left and right H profile steel of one that obtains cuts into two separate H profile steel from connecting plate, obtains the satisfactory finished product H profile steel of two covers.
Preferably, when a described H groove rolling pass is identical with the structure of described 2nd H groove rolling pass, step 3) the separate H profile steel structure of two covers that obtain is identical.
Preferably, when the structure of a described H groove rolling pass and described 2nd H groove rolling pass exists difference, step 3) there is difference in the separate H profile steel structure of two covers that obtains.
Present invention also offers a kind of milling method of H profile steel, because this milling method uses above-mentioned milling train, therefore this milling method has the whole Advantageous Effects of above-mentioned milling train, repeats no more herein.
Accompanying drawing explanation
The structural representation of the roll of the milling train that Fig. 1 provides for the embodiment of the present invention;
Integral type two after the finish rolling process that Fig. 2 provides for the embodiment of the present invention and before shearing overlaps the structural representation of H profile steel.
In figure: 1 topping roll, 2 bottom rolls, 3 the one H groove rolling passes, 4 the 2nd H groove rolling passes, 5 connecting plate hole slots, 6 connecting plates, 7H shaped steel.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
In describing the invention, it will be appreciated that, term " " center ", " axis ", " radial direction ", " longitudinal direction ", " transverse direction ", " length ", " width ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, one or more these features can be expressed or impliedly be comprised to the feature of restriction " first ", " second ".
The structural representation of the roll of the milling train that reference Fig. 1 ~ Fig. 2, Fig. 1 provide for the embodiment of the present invention; Integral type two after the finish rolling process that Fig. 2 provides for the embodiment of the present invention and before shearing overlaps the structural representation of H profile steel.
The present invention finds, at present, in some small dimension roll on, only design a set of rolling groove, not too prosperous in current steel market, under the industry overall situation that cost pressure is outstanding, so design rolling groove, there is huge cost waste and efficiency is wasted.For this reason, the invention provides a kind of milling train of H profile steel, comprise and to be a set ofly arranged on a pair roller, for a H groove rolling pass 3 of rolled h-section steel beam, a set ofly in addition to be arranged on a pair roller, for the 2nd H groove rolling pass 4 of rolled h-section steel beam, a described H groove rolling pass 3 is positioned on same a pair roller of described milling train with described 2nd H groove rolling pass 4, and a described H groove rolling pass 3 and described 2nd H groove rolling pass 4 along the roll of described milling train longitudinal center line in parallel and compartment of terrain distribute;
Also comprise and be arranged between a described H groove rolling pass 3 and described 2nd H groove rolling pass 4, and for the formation of connecting plate 6 hole slot 5 of connecting plate 6, a described H groove rolling pass 3 is connected by described connecting plate 6 hole slot 5 with described 2nd H groove rolling pass 4;
A described H groove rolling pass 3 is applicable to rolling total height and is not more than 200mm and flange width is not more than the H profile steel of 200mm;
Described 2nd H groove rolling pass 4 is applicable to rolling total height and is not more than 200mm and flange width is not more than the H profile steel of 200mm.
When being rolled process, the metal crossing volume be extruded in one H groove rolling pass 3 and described 2nd H groove rolling pass 4 can enter in connecting plate 6 hole slot 5, form connecting plate 6, the shaped steel that left and right two is overlapped in rolling groove is linked into an integrated entity, after the rolling of multiple passage, the integral type two formed as shown in Figure 2 overlaps H profile steel.
In the present invention, above-mentioned milling train comprises big mill and finishing mill, the roll of i.e. big mill comprises and to be a set ofly arranged on roll, for a H groove rolling pass 3 of rolled h-section steel beam, and to be a set ofly in addition arranged on same roll, for the 2nd H groove rolling pass 4 of rolled h-section steel beam; The roll of i.e. finishing mill comprises and to be a set ofly arranged on roll, for a H groove rolling pass 3 of rolled h-section steel beam, and to be a set ofly in addition arranged on same roll, for the 2nd H groove rolling pass 4 of rolled h-section steel beam.
The a pair roller simultaneously arranging a H groove rolling pass 3 and the 2nd H groove rolling pass 4 comprises topping roll 1 and bottom roll 2.
The present invention by arranging H groove rolling pass 3 and a 2nd H groove rolling pass 4 on the same roll of milling train, be specifically designed to rolling total height and be not more than 200mm and flange width is not more than the middle small dimension H profile steel of 200mm, be not suitable for other H profile steel compared with large gauge of process, make after a full-range process, once can obtain two cover H profile steel, when not increasing unit cost, the specific yield of H profile steel is increased to original twice, energy-saving effect is remarkable, remarkable in economical benefits.
In one embodiment of the invention, a described H groove rolling pass 3 is identical with the structure of described 2nd H groove rolling pass 4, and structure described herein is identical, and to mean the parameter of a H groove rolling pass 3 sign its structure whole with the profile, size etc. of described 2nd H groove rolling pass 4 all identical.Because a H groove rolling pass 3 is identical with the structure of the 2nd H groove rolling pass 4, final output be construction profile identical two cover H profile steel, thus make when not changing roll, after same whole process process, can output structure identical two cover H profile steel.
In one embodiment of the invention, difference is there is in a described H groove rolling pass 3 with the structure of described 2nd H groove rolling pass 4, namely a described H groove rolling pass 3 is incomplete same with the structure of described 2nd H groove rolling pass 4, i.e. individual parameters in the parameter of its structure of sign that a H groove rolling pass 3 is whole with the profile, size etc. of described 2nd H groove rolling pass 4 is not identical.When one H groove rolling pass 3 is different from the structure of the 2nd H groove rolling pass 4, final output be construction profile different two cover H profile steel, thus make when not changing roll, after same whole process process, can output structure not identical two cover H profile steel, this milling train according to needs of production, can be arranged production flexibly.
Present invention also offers a kind of milling method of H profile steel, use the milling train being used for rolled h-section steel beam, described milling train comprises and is a set ofly arranged on roll, for a H groove rolling pass 3 of rolled h-section steel beam, a set ofly in addition be arranged on roll, for the 2nd H groove rolling pass 4 of rolled h-section steel beam, a described H groove rolling pass 3 is positioned on the same roll of described milling train with described 2nd H groove rolling pass 4, and a described H groove rolling pass 3 and described 2nd H groove rolling pass 4 along the roll of described milling train longitudinal center line in parallel and compartment of terrain distribute,
Also comprise and be arranged between a described H groove rolling pass 3 and described 2nd H groove rolling pass 4, and for the formation of connecting plate 6 hole slot 5 of connecting plate 6, a described H groove rolling pass 3 is connected by described connecting plate 6 hole slot 5 with described 2nd H groove rolling pass 4;
A described H groove rolling pass 3 is applicable to rolling total height and is not more than 200mm and flange width is not more than the H profile steel of 200mm;
Described 2nd H groove rolling pass 4 is applicable to rolling total height and is not more than 200mm and flange width is not more than the H profile steel of 200mm;
Described milling train comprises the big mill for roughing and the finishing mill for finish rolling;
Comprise the following steps:
1) utilize big mill that special-shaped strand is carried out roughing;
2) finishing mill is utilized by step 1) strand after roughing process that obtains carries out finish rolling, and obtain the middle left and right two linked into an integrated entity by connecting plate 6 and overlap H profile steel 7;
3) shear is utilized by step 2) two, the left and right H profile steel of one that obtains cuts into two separate H profile steel from connecting plate 6, obtains the satisfactory finished product H profile steel 7 of two covers.
In one embodiment of the invention, when a described H groove rolling pass 3 is identical with the structure of described 2nd H groove rolling pass 4, step 3) the separate H profile steel structure of two covers that obtain is identical.
In one embodiment of the invention, when a described H groove rolling pass 3 exists difference with the structure of described 2nd H groove rolling pass 4, step 3) there is difference in the separate H profile steel structure of two covers that obtains.
In order to understand the present invention further, be described in detail to the milling train of a kind of H profile steel provided by the invention and milling method below in conjunction with embodiment, protection scope of the present invention is not limited by the following examples.
Embodiment 1
A kind of milling method of H profile steel, use the milling train being used for rolled h-section steel beam, described milling train comprises and to be a set ofly arranged on roll, for a H groove rolling pass 3 of rolled h-section steel beam, a set ofly in addition to be arranged on roll, for the 2nd H groove rolling pass 4 of rolled h-section steel beam, a described H groove rolling pass 3 is positioned on the same roll of described milling train with described 2nd H groove rolling pass 4, and a described H groove rolling pass 3 and described 2nd H groove rolling pass 4 along the roll of described milling train longitudinal center line in parallel and compartment of terrain distribute;
Also comprise and be arranged between a described H groove rolling pass 3 and described 2nd H groove rolling pass 4, and for the formation of connecting plate 6 hole slot 5 of connecting plate 6, a described H groove rolling pass 3 is connected by described connecting plate 6 hole slot 5 with described 2nd H groove rolling pass 4;
A described H groove rolling pass 3 is applicable to rolling total height and is 125mm and flange width is the H profile steel of 125mm;
Described 2nd H groove rolling pass 4 is applicable to rolling total height and is 125mm and flange width is the H type of 125mm
Steel; Comprise the following steps:
1) utilize big mill that special-shaped strand is carried out roughing;
2) finishing mill is utilized by step 1) strand after roughing process that obtains carries out finish rolling, and obtain the middle left and right two linked into an integrated entity by connecting plate 6 and overlap H profile steel 7;
3) shear is utilized by step 2) two, the left and right H profile steel of one that obtains cuts into two separate H profile steel from connecting plate 6, obtain specification that the satisfactory finished product H profile steel 7, two of two covers overlaps finished product H profile steel 7 to be total height and to be 125mm and flange width is 125mm.
Embodiment 2
A kind of milling method of H profile steel, use the milling train being used for rolled h-section steel beam, described milling train comprises and to be a set ofly arranged on roll, for a H groove rolling pass 3 of rolled h-section steel beam, a set ofly in addition to be arranged on roll, for the 2nd H groove rolling pass 4 of rolled h-section steel beam, a described H groove rolling pass 3 is positioned on the same roll of described milling train with described 2nd H groove rolling pass 4, and a described H groove rolling pass 3 and described 2nd H groove rolling pass 4 along the axial centre line parallel of the roll of described milling train and compartment of terrain distribute;
Also comprise and be arranged between a described H groove rolling pass 3 and described 2nd H groove rolling pass 4, and for the formation of connecting plate 6 hole slot 5 of connecting plate 6, a described H groove rolling pass 3 is connected by described connecting plate 6 hole slot 5 with described 2nd H groove rolling pass 4;
A described H groove rolling pass 3 is applicable to rolling total height and is 125mm and flange width is the H profile steel of 125mm;
Described 2nd H groove rolling pass 4 is applicable to rolling total height and is 150mm and flange width is the H profile steel of 150mm; Comprise the following steps:
1) utilize big mill that special-shaped strand is carried out roughing;
2) finishing mill is utilized by step 1) strand after roughing process that obtains carries out finish rolling, and obtain the middle left and right two linked into an integrated entity by connecting plate 6 and overlap H profile steel 7;
3) shear is utilized by step 2) two, the left and right H profile steel of one that obtains cuts into two separate H profile steel from connecting plate 6, obtain the satisfactory finished product H profile steel 7 of two covers, wherein the specification of a set of finished product H profile steel 7 is that total height is 125mm and flange width is 125mm, and the specification of a set of finished product H profile steel 7 is that total height is 150mm and flange width is 150mm in addition.
The method and apparatus of the not detailed description of the present invention is prior art, repeats no more.
Apply specific embodiment herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (6)
1. the milling train of a H profile steel, it is characterized in that, comprise and to be a set ofly arranged on a pair roller, for a H groove rolling pass of rolled h-section steel beam, a set ofly in addition to be arranged on a pair roller, for the 2nd H groove rolling pass of rolled h-section steel beam, a described H groove rolling pass and described 2nd H groove rolling pass are positioned on same a pair roller of described milling train, and a described H groove rolling pass and described 2nd H groove rolling pass along the roll of described milling train longitudinal center line in parallel and compartment of terrain distribute;
Also comprise and be arranged between a described H groove rolling pass and described 2nd H groove rolling pass, and for the formation of the connecting plate hole slot of connecting plate, a described H groove rolling pass is connected by described connecting plate hole slot with described 2nd H groove rolling pass;
A described H groove rolling pass is applicable to rolling total height and is not more than 200mm and flange width is not more than the H profile steel of 200mm;
Described 2nd H groove rolling pass is applicable to rolling total height and is not more than 200mm and flange width is not more than the H profile steel of 200mm;
Described milling train comprises the big mill for roughing and the finishing mill for finish rolling.
2. milling train according to claim 1, is characterized in that, a described H groove rolling pass is identical with the structure of described 2nd H groove rolling pass.
3. milling train according to claim 1, is characterized in that, the structure of a described H groove rolling pass and described 2nd H groove rolling pass exists difference.
4. the milling method of a H profile steel, it is characterized in that, use the milling train being used for rolled h-section steel beam, described milling train comprises and is a set ofly arranged on a pair roller, for a H groove rolling pass of rolled h-section steel beam, a set ofly in addition be arranged on a pair roller, for the 2nd H groove rolling pass of rolled h-section steel beam, a described H groove rolling pass and described 2nd H groove rolling pass are positioned on same a pair roller of described milling train, and a described H groove rolling pass and described 2nd H groove rolling pass along the roll of described milling train longitudinal center line in parallel and compartment of terrain distribute,
Also comprise and be arranged between a described H groove rolling pass and described 2nd H groove rolling pass, and for the formation of the connecting plate hole slot of connecting plate, a described H groove rolling pass is connected by described connecting plate hole slot with described 2nd H groove rolling pass;
A described H groove rolling pass is applicable to rolling total height and is not more than 200mm and flange width is not more than the H profile steel of 200mm;
Described 2nd H groove rolling pass is applicable to rolling total height and is not more than 200mm and flange width is not more than the H profile steel of 200mm;
Described milling train comprises the big mill for roughing and the finishing mill for finish rolling;
Comprise the following steps:
1) utilize big mill that special-shaped strand is carried out roughing;
2) finishing mill is utilized by step 1) strand after roughing process that obtains carries out finish rolling, and obtain the middle left and right two linked into an integrated entity by connecting plate and overlap H profile steel;
3) shear is utilized by step 2) two, the left and right H profile steel of one that obtains cuts into two separate H profile steel from connecting plate, obtains the satisfactory finished product H profile steel of two covers.
5. milling method according to claim 4, is characterized in that, when a described H groove rolling pass is identical with the structure of described 2nd H groove rolling pass, step 3) the separate H profile steel structure of two covers that obtain is identical.
6. milling method according to claim 4, is characterized in that, when the structure of a described H groove rolling pass and described 2nd H groove rolling pass exists difference, step 3) there is difference in the separate H profile steel structure of two covers that obtains.
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| CN201510925021.9A CN105344710A (en) | 2015-12-10 | 2015-12-10 | Rolling mill and rolling method for H-shaped steel |
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| CN201510925021.9A CN105344710A (en) | 2015-12-10 | 2015-12-10 | Rolling mill and rolling method for H-shaped steel |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945068A (en) * | 2016-06-06 | 2016-09-21 | 山东钢铁股份有限公司 | Edging roll with nested hole groove structure and rolling method of H-shaped steel |
| CN106540964A (en) * | 2016-12-02 | 2017-03-29 | 山东钢铁股份有限公司 | C-type steel diplopore rolls X balancing hole types and milling method |
| CN106734206A (en) * | 2016-12-02 | 2017-05-31 | 山东钢铁股份有限公司 | C-type steel diplopore rolls axial symmetry pass and milling method |
| CN108889775A (en) * | 2018-06-25 | 2018-11-27 | 攀钢集团攀枝花钢钒有限公司 | Guard rail U-steel roll mill and milling method |
| CN110142293A (en) * | 2019-05-09 | 2019-08-20 | 山东钢铁股份有限公司 | The milling method and its rolling system of open fashioned iron |
| CN114309057A (en) * | 2021-12-30 | 2022-04-12 | 无锡市方顺型钢科技有限公司 | Cold rolling processing method of deformed steel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105945068A (en) * | 2016-06-06 | 2016-09-21 | 山东钢铁股份有限公司 | Edging roll with nested hole groove structure and rolling method of H-shaped steel |
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| CN106540964A (en) * | 2016-12-02 | 2017-03-29 | 山东钢铁股份有限公司 | C-type steel diplopore rolls X balancing hole types and milling method |
| CN106734206A (en) * | 2016-12-02 | 2017-05-31 | 山东钢铁股份有限公司 | C-type steel diplopore rolls axial symmetry pass and milling method |
| CN106734206B (en) * | 2016-12-02 | 2019-08-27 | 山东钢铁股份有限公司 | C-type steel diplopore rolls axial symmetry pass and milling method |
| CN108889775A (en) * | 2018-06-25 | 2018-11-27 | 攀钢集团攀枝花钢钒有限公司 | Guard rail U-steel roll mill and milling method |
| CN110142293A (en) * | 2019-05-09 | 2019-08-20 | 山东钢铁股份有限公司 | The milling method and its rolling system of open fashioned iron |
| CN114309057A (en) * | 2021-12-30 | 2022-04-12 | 无锡市方顺型钢科技有限公司 | Cold rolling processing method of deformed steel |
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