CN210586365U - Wire rod production line - Google Patents
Wire rod production line Download PDFInfo
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- CN210586365U CN210586365U CN201921356353.XU CN201921356353U CN210586365U CN 210586365 U CN210586365 U CN 210586365U CN 201921356353 U CN201921356353 U CN 201921356353U CN 210586365 U CN210586365 U CN 210586365U
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Abstract
The utility model discloses a line rod production line, include heating device, roughing mill group, the roll table of taking off, well rolling mill group, reposition of redundant personnel finishing line, high-speed steel feeding device cold bed and the scale flying shear that set gradually according to rolling direction, the quantity of reposition of redundant personnel finishing line is two at least, and each reposition of redundant personnel finishing down parallel arrangement, along rolling direction on, every reposition of redundant personnel finishing line all includes water cooling plant, finishing mill group, finish rolling back water cooling plant before the finishing mill group that sets gradually along rolling direction, finish rolling. The utility model discloses a line bar production line sets up two at least reposition of redundant personnel finish rolling lines that set up side by side behind well rolling mill group, shunts the rolling to the material after the segmentation, can realize the production of the excellent wire rod of less specification, and the rolling speed of single reposition of redundant personnel finish rolling line can realize than original rolling mode faster rolling speed that merges to can improve rough rolling speed, improve the output of excellent wire rod.
Description
Technical Field
The utility model belongs to the technical field of a line rod rolling, especially, relate to a line rod production line.
Background
Through years of development, the advanced production technology of wire and bar materials in China is mature day by day. The wire rod tandem rolling technology, the water cooling technology and the rod cutting rolling technology are mature in application in many domestic manufacturers. At present, the traditional small-sized bar is mainly produced by adopting a slitting rolling mode in China, wherein the slitting rolling refers to a rolling technology of longitudinally slitting a rolled piece into two lines or multiple lines by using a roller pass, a slitting wheel in a guide device or other slitting devices in the rolling process. It has the following characteristics:
1) the yield of medium and small-sized bars can be greatly improved by slitting and rolling;
2) on the premise of not increasing the number of rolling mills, the steel billets with the same cross section can be adopted for producing small-specification and large-specification products, so that the types of raw materials can be reduced;
3) the same blank is used for producing products with the same specification, and the total deformation rate is only 1/2-1/4 of single-line rolling, so that the rolling passes can be reduced.
4) The final rolling speed is not improved while the yield is increased, and the final rolling speed is reduced after the slitting rolling is adopted in some specifications;
5) the splitting rolling technology is adopted on the existing continuous rolling mill or a newly-built continuous rolling mill, and the production process is only partially changed, and main process equipment has no special requirements, so that the splitting rolling technology has the characteristics of low investment, high output and quick response;
6) under the same conditions, the adoption of the splitting rolling can reduce the fuel consumption and the power consumption of each ton of steel.
At present, most of domestic wire and bar continuous rolling plants adopt a splitting rolling technology, the existing wire and bar production line sequentially comprises a heating furnace A, a roughing mill group B, a middle mill group C, a middle post-rolling water tank D, a finish rolling splitting machine group E, a finish rolling water tank H, a pinch roll, a multiple-length flying shear I and a cooling bed J according to a rolling direction, in the existing wire and bar production line, the rolling speed of the roughing mill group is limited, so that the yield of wires and bars is not high enough, and the existing wire and bar production line has the problem that the wire and bar with smaller specifications (for example, the wire and bar with the size smaller than 10 mm) cannot be produced.
Disclosure of Invention
A primary object of the present invention is to provide a wire and rod assembly line to realize the production of wire and rod with smaller specification and to increase the yield.
In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows:
the utility model provides a line rod production line, includes heating device, roughing mill group, the roll table of taking off the head, well rolling mill group, third flying shear and the cold bed that sets gradually according to rolling direction, this line rod production line still includes two at least reposition of redundant personnel finishing lines that set up side by side, upwards along the rolling direction, every reposition of redundant personnel finishing line equipartition is put well rolling mill group with between the third flying shear, every reposition of redundant personnel finishing line all includes the water cooling plant after water cooling plant, finish rolling unit, the finish rolling that set gradually along rolling direction, each after the finish rolling water cooling plant with be provided with high-speed steel feeding device between the cold bed.
Optionally, a first flying shear is arranged between the rough rolling unit and the intermediate rolling unit, and a second flying shear is arranged between the pre-finishing rolling unit and the water cooling device before finishing rolling.
Optionally, the finishing mill group comprises a plurality of tandem double-module finishing mills, and a finishing inter-rolling water cooling device is arranged between each double-module finishing mill;
optionally, the finishing mill group comprises a plurality of independent transmission finishing mills, and a finishing mill room water cooling device is arranged between each independent transmission finishing mill;
optionally, the finishing mill group is a centralized transmission type finishing mill group.
Optionally, when the finishing mill group comprises a plurality of tandem double-module finishing mills, a return section is arranged between each two of the double-module finishing mills;
when the finishing mill group comprises a plurality of independent transmission finishing mills, a return section is also arranged between each independent transmission finishing mill.
Optionally, the number of the split finishing lines is two.
Optionally, the intermediate mill group simultaneously mills a single rolled piece or two rolled pieces or a plurality of rolled pieces.
Optionally, the pre-finishing mill group is a short stress path rolling mill or a cantilever rolling mill.
Optionally, the finishing mill group is a top-crossing type 45-degree cantilever mill.
Optionally, each rolling mill of the roughing mill group, the intermediate mill group, the pre-finishing mill group and the finishing mill group is provided with an online roll gap adjusting mechanism for adjusting a roll gap under a belt load.
Optionally, the heating device is a heating furnace or an electromagnetic induction furnace, and the wire and bar production line further comprises a heat preservation roller way for conveying the continuous casting into the heating device.
Optionally, when the continuous casting slab is a square slab, the roughing mill set adopts 6 passes of rolling, the intermediate mill set adopts 8 passes of rolling, the pre-finishing mill set adopts 4 passes of rolling, and the finishing mill set adopts 6 passes of rolling.
Optionally, when the continuous casting slab is a rectangular slab, the roughing mill performs 5-pass or 7-pass rolling, the intermediate mill group performs 8-pass rolling, the pre-finishing mill group performs 4-pass rolling, and the finishing mill group performs 6-pass rolling.
The utility model discloses a line bar production line sets up two at least reposition of redundant personnel finish rolling lines that set up side by side behind well rolling mill group, shunts the rolling to the material after the segmentation, can realize the production of the excellent wire rod of less specification, and the rolling speed of single reposition of redundant personnel finish rolling line can realize than original rolling mode faster rolling speed that merges to can improve rough rolling speed, improve the output of excellent wire rod.
Drawings
FIG. 1 is a schematic structural view of a conventional wire and bar production line;
fig. 2 is a schematic diagram illustrating an exemplary structure of a wire and rod production line according to the present invention;
fig. 3 is a schematic view of another exemplary structure of a wire and rod production line according to the present invention;
FIG. 4 is a schematic diagram of another example relative structure of a wire and rod manufacturing line according to the present invention;
FIG. 5 is a schematic diagram of an exemplary construction of the run-out table;
FIG. 6 is a schematic diagram of an exemplary construction of a two module finishing block;
FIG. 7 is a schematic diagram of an exemplary configuration of an independently driven finishing block;
FIG. 8 is a schematic diagram of an exemplary construction of a concentrated drive finishing train
The description of reference numerals in the examples includes:
the device comprises a heating device 1, a rough rolling unit 2, a first flying shear 3, a head-off roller table 4, a middle rolling unit 5, a split finishing rolling line 6, a pre-finishing rolling unit 61, a water cooling device 62 before finishing rolling, a second flying shear 63, a finishing rolling unit 64, a water cooling device 65 between finishing rolling, a water cooling device 66 after finishing rolling, a third flying shear 7, a high-speed steel feeding device 8, a cooling bed 9, a split roller table 41, a center line roller table 42, a roller table motor 43, a steel pulling device 44, a conical box 651, a roller box 652, a transmission shaft 653, a gearbox 654 and a finishing rolling motor 655.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
It is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, like reference numerals refer to like elements throughout.
Referring to fig. 2, fig. 3, fig. 4, the utility model provides a wire rod production line, include heating device 1, roughing mill group 2, the roll table 4 that takes off the head, well rolling mill group 5, third flying shear 7 and the cooling bed 9 that set gradually according to rolling direction, this wire rod production line still includes two reposition of redundant personnel finish rolling line 6 that set up side by side, along rolling direction, every reposition of redundant personnel finish rolling line 6 equipartition is in between well rolling mill group 5 and the third flying shear 7, every reposition of redundant personnel finish rolling line 6 all includes along the preceding finish rolling mill group 61 that rolling direction set gradually, water cooling plant 62 before the finish rolling, finish rolling unit 64, finish rolling back water cooling plant 66, each back water cooling plant 66 with be provided with high-speed finish rolling device 8 between the cooling bed 9, at this moment, this high-speed steel device 8 is double-line high-speed steel device 8. In practical implementation, the number of the wire and bar production lines can be multiple, and correspondingly, the high-speed steel feeding device 8 is a multi-wire high-speed steel feeding device 8. Set up this reposition of redundant personnel finishing line 6 to two, can directly carry out local adjustment to current production line in current factory building, if set up this reposition of redundant personnel finishing line 6 to many, the occupation of land of present most of factory buildings is slightly little, then need correspond the factory building of the corresponding size of construction.
During rolling, the split-flow rolling is adopted after the intermediate rolling in the wire bar production line, so that the temperature of each rolled piece after split-flow is more convenient to control, and the rolling of the rolled piece in the rolling procedure after intermediate rolling can reach a higher speed through the split-flow rolling, so that the rough rolling speed and the intermediate rolling speed can be correspondingly increased, the rolling speed of the whole production line is increased, and the wire bar yield is increased; in addition, the high-speed post-climbing device correspondingly adopts double lines or multiple lines, compared with a conventional wire and bar production line, steel on the rack of the cooling bed 9 is placed in a single line, the precision of bar products is high, no winding exists, the production line is stable, the yield is high, and the cost is reduced by controlled rolling and controlled cooling.
In the production line, referring to fig. 5, the head-off roller table 4 includes a shunt roller table 41, a central line roller table 42, roller table motors 43 and a steel shifting device 44, during production, each roller table motor 43 drives the shunt roller table 41 and the central line roller table 42 to rotate, when the roughing mill group 2 splits a rolled piece, the rolled piece enters the central line roller table 42, the steel shifting device 44 shifts the rolled piece on the central line roller table 42 to the shunt roller tables 41 on both sides respectively, so that the split rolled piece enters the intermediate mill group 5 in a double-line form, and the split rolling is performed subsequently.
In some embodiments, referring to fig. 2, the finishing block 64 is a centralized driven finishing block, referring to fig. 8, that includes a roll box 652 and a finishing motor 655 for powering the roll box 652.
In other embodiments, referring to FIG. 3, the finishing train 64 includes a plurality of tandem double block finishing mills with a finish rolling chamber water cooling apparatus 65 disposed between each double block finishing mill. In still other embodiments, referring to FIG. 4, the finishing train 64 includes a plurality of independently driven finishing blocks with a finish rolling compartment water cooling apparatus 65 disposed between each of the independently driven finishing blocks. The mode of arranging the water cooling device 65 between the finish rolling mills can ensure that the surface temperature difference of the rolled piece core is small, the surface temperature is not lower than the martensite starting transformation temperature during cooling, the mechanical property of the high rolled piece is provided through uniform fine grain granulation and structure strengthening, and the alloy cost is reduced.
Referring to fig. 6, the double module finishing mill includes a conical box 651, a roller box 652, transmission shafts 653, gearboxes 654, and finishing motors 655, wherein each finishing motor 655 drives one gearbox 654 to rotate, each gearbox 654 drives two transmission shafts 653 to rotate, and the two transmission shafts 653 drive corresponding rollers and the conical box 651 to operate respectively; referring to fig. 7, the independent drive finishing block includes a cone box 651, a roller box 652, a drive shaft 653, a gear box 654, and a finishing motor 655 in one-to-one correspondence.
In some embodiments, a first flying shear 3 is disposed between the roughing mill train 2 and the intermediate mill train 5, and a second flying shear 63 is disposed between the pre-finishing mill train 61 and the pre-finishing water cooling device 62.
In some embodiments, referring to the figures, when the finishing train 64 includes a plurality of tandem double module finishing blocks, a recovery section is provided between each of the double module finishing blocks; in other embodiments, see, when the finishing train 64 includes multiple independently driven finishing blocks, a return section is also provided between each of the independently driven finishing blocks. In the figure, the recovery section is combined with a water cooling device 65 between finish rolling, so that the cooling temperature in the rolling process can be controlled more favorably, rolled pieces are refined at low temperature and high pressure, and organization guarantee is provided for controlled cooling after subsequent rolling.
In some embodiments, the pre-finishing mill train 61 is a short stress path mill or a cantilever mill.
In some embodiments, the finishing mill train 64 is a top-crossed 45 ° cantilever mill.
In some embodiments, each rolling mill of the roughing train 2, the intermediate train 5, the pre-finishing train 61 and the finishing train 64 is provided with an in-line roll gap adjustment mechanism for adjusting the roll gap under load.
In some embodiments, the heating device 1 is a heating furnace or an electromagnetic induction furnace, and the wire-rod production line further comprises a holding roller table for feeding the continuous cast slab into the heating device 1.
In some embodiments, the continuous casting slab is a billet, the roughing mill train 2 performs 6 passes, the intermediate mill train 5 performs 8 passes, the pre-finishing mill train 61 performs 4 passes, and the finishing mill train 64 performs 6 passes.
In other embodiments, the continuous casting slab is a rectangular slab, the roughing mill performs 5-pass or 7-pass rolling, the intermediate mill train 5 performs 8-pass rolling, the pre-finishing mill train 61 performs 4-pass rolling, and the finishing mill train 64 performs 6-pass rolling.
In some embodiments, the intermediate mill train simultaneously rolls two rolled pieces, and in actual practice, the intermediate mill train can also simultaneously roll a single rolled piece or multiple rolled pieces.
When the continuous casting slab is rolled on the production line of the above embodiment, taking a rectangular blank or a square blank with the end surface of the continuous casting slab being 150mm × 150mm to 180mm × 180mm as an example, if two finishing rolling lines are provided in the production line, the processing of the continuous casting slab by each device or unit on the production line is as follows:
the heating device 1: heating the continuous casting billet to ensure that the temperature of the continuous casting billet after being heated by the heating device 1 is 900-1250 ℃;
roughing train 2: adopting a horizontal-vertical alternative or flat-roller rolling mode to perform 6-pass rough rolling unit 2 rolling on the square billet heated by the heating device 1, and performing 5-pass or 7-pass rough rolling unit 2 rolling on the rectangular billet, wherein in the rolling process, no pass rolling or pass rolling can be adopted, when pass rolling is adopted, the rough rolling unit 2 is a box-box type, oval or round pass system, when in rolling, a guide is arranged in front of each pass of rolling mill, the deformation compression ratio of each pass is controlled to be 1.20-1.45 in the rolling process, the deformation temperature is 880-1150 ℃, and the running speed of the rolled piece in the rolling process of the rough rolling unit 2 is 0.075 m/s-5.00 m/s;
a head-off roller table 4: after the head and the tail of the rolled piece after rough rolling are cut by the first flying shear 3, the rolled piece stays on a center line roller way 42 of a head-off heat-preservation steel splitting roller way for a short time, the full-length rolled piece is quickly and successively shifted to split roller ways 41 on two sides by a steel shifting device 44, and guide groove branching is carried out;
a medium rolling mill set 5: the rolled piece after being branched by the guide groove of the head-off roller table 4 is subjected to double-flow rolling by a rolling mill group 5 in 8 passes, a pass system is an oval-round pass system during rolling, guides and guards are arranged at the front and the rear of each rolling mill, the deformation compression ratio of each pass is controlled to be 1.20-1.40, the deformation temperature is 850-1100 ℃, and the running speed of the rolled piece is 0.5-10.00 m/s;
pre-rolling by a rolling unit: rolling the rolled piece after double-flow rolling by the middle rolling mill group 5 into a 4-rack pre-finish rolling with double-line arrangement through a roller way, wherein the pass system is an oval-round pass system during rolling, guides and guards are arranged at the front and the rear of each rolling mill, the deformation compression ratio of each pass is controlled to be 1.20-1.40, the deformation temperature is 850-1050 ℃, and the running speed of the rolled piece is 2.0-20.00 m/s;
water cooling device before finish rolling 62 and finishing mill group 64: the rolled piece rolled by the rolling unit in advance is controlled and cooled by a water cooling device 62 (water tank) before finish rolling, after controlled cooling, the rolled piece is rolled by a centralized transmission 6-frame 45-degree top-cross cantilever finish rolling unit 64, the finish rolling unit 64 rolls at low temperature and high pressure, a pass system is an oval-round pass system during rolling, guides and guards are arranged at the front and the back of each rolling mill, the deformation compression ratio of each pass is controlled to be 1.20-1.35, the deformation temperature is 730-980 ℃, and the running speed of the rolled piece is 6.0-50.00 m/s;
a water cooling device 66 and a high-speed steel feeding device 8 after finish rolling: the rolled piece after finish rolling by the finishing mill group 64 enters a finish rolling post-water cooling device 66 (water tank) for cooling control, the temperature of the rolled piece on a cooling bed 9 is 600-850 ℃, and the running speed of the rolled piece on a high-speed steel feeding system is 6.0-50.00 m/s;
cooling bed 9: the rolled piece conveyed by high-speed steel feeding enters a cooling bed 9 for cooling, the temperature of the rolled piece below the cooling bed 9 is 300-600 ℃, and after being conveyed by a roller way, the rolled piece is subjected to sizing flying shear, cold shear sizing and bundling collection.
It can be seen, adopt the utility model discloses a line bar production line rolls the back and shunts and carry out finish rolling and finish rolling in advance in, can guarantee the finished product quality, can improve the rolling speed after rolling again through the reposition of redundant personnel to make the speed of rough rolling and well rolling can correspond the promotion, improve the output of whole production line.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a line rod production line, includes heating device, roughing mill group, the roll table of taking off the head, well rolling mill group, third flying shear and the cold bed that sets gradually according to rolling direction, its characterized in that: the high-speed steel feeding device is characterized by further comprising at least two shunt finishing rolling lines arranged in parallel, wherein each shunt finishing rolling line is uniformly arranged between the middle rolling mill unit and the third flying shear along the rolling direction, each shunt finishing rolling line comprises a pre-finishing rolling mill unit, a water cooling device before finish rolling, a finishing rolling mill unit and a water cooling device after finish rolling, which are sequentially arranged along the rolling direction, and a high-speed steel feeding device is arranged between each water cooling device after finish rolling and the cooling bed.
2. A wire and rod production line as claimed in claim 1, wherein: and a first flying shear is arranged between the roughing mill group and the intermediate mill group, and a second flying shear is arranged between the pre-finishing mill group and the water cooling device before finishing.
3. A wire and rod production line as claimed in claim 1, wherein:
the finishing mill group comprises a plurality of tandem double-module finishing mills, and a finishing inter-rolling water cooling device is arranged between each double-module finishing mill;
or
The finishing mill group comprises a plurality of independent transmission finishing mills, and a finishing mill room water cooling device is arranged between each independent transmission finishing mill;
or
The finishing mill group is a centralized transmission type finishing mill group.
4. A wire and rod production line as claimed in claim 3, wherein:
when the finishing mill group comprises a plurality of tandem double-module finishing mills, a return section is arranged between each two double-module finishing mills;
when the finishing mill group comprises a plurality of independent transmission finishing mills, a return section is also arranged between each independent transmission finishing mill.
5. A wire and rod production line as claimed in claim 1, wherein: the number of the flow dividing finishing rolling lines is two.
6. A wire and rod production line as claimed in claim 1, wherein: the middle rolling mill set rolls a single rolled piece or double rolled pieces or a plurality of rolled pieces simultaneously.
7. A wire and rod production line as claimed in claim 1, wherein: the pre-finishing mill group is a short stress path rolling mill or a cantilever rolling mill; the finishing mill group is a top crossing type 45-degree cantilever mill.
8. A wire and rod production line as claimed in claim 1, wherein: and each rolling mill of the roughing mill group, the intermediate mill group, the pre-finishing mill group and the finishing mill group is provided with an online roll gap adjusting mechanism for adjusting roll gaps under belt load.
9. A wire and rod production line as claimed in claim 1, wherein: the heating device is a heating furnace or an electromagnetic induction furnace, and the wire and bar production line further comprises a heat preservation roller way for conveying the continuous casting into the heating device.
10. A wire and rod production line as claimed in claim 1, wherein: when the continuous casting billet is a square billet, the roughing mill set adopts 6-pass rolling, the intermediate mill set adopts 8-pass rolling, the pre-finishing mill set adopts 4-pass rolling, and the finishing mill set adopts 6-pass rolling;
when the continuous casting billet is a rectangular billet, the roughing mill adopts 5-pass or 7-pass rolling, the intermediate mill group adopts 8-pass rolling, the pre-finishing mill group adopts 4-pass rolling, and the finishing mill group adopts 6-pass rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921356353.XU CN210586365U (en) | 2019-08-20 | 2019-08-20 | Wire rod production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921356353.XU CN210586365U (en) | 2019-08-20 | 2019-08-20 | Wire rod production line |
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| CN210586365U true CN210586365U (en) | 2020-05-22 |
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| CN201921356353.XU Active CN210586365U (en) | 2019-08-20 | 2019-08-20 | Wire rod production line |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692054A (en) * | 2020-11-18 | 2021-04-23 | 江苏省镔鑫钢铁集团有限公司 | Bar steel rolling and splitting process capable of reducing raw material cost |
| CN112846671A (en) * | 2021-01-26 | 2021-05-28 | 江苏省镔鑫钢铁集团有限公司 | Method and apparatus for producing metal bar |
| CN113600613A (en) * | 2021-08-19 | 2021-11-05 | 宝武集团鄂城钢铁有限公司 | Bar rolling method and application thereof |
| CN114260311A (en) * | 2021-10-26 | 2022-04-01 | 中冶南方工程技术有限公司 | High-yield rod production system |
| CN114405994A (en) * | 2022-03-11 | 2022-04-29 | 陕钢集团产业创新研究院有限公司 | Method for rolling ER70S-6 wire rod by using thermomechanical control process arrangement |
| CN114405992A (en) * | 2022-01-24 | 2022-04-29 | 中冶赛迪工程技术股份有限公司 | Production method and system for controlling shade and sun surfaces of double high-speed bars |
| CN114472510A (en) * | 2022-01-19 | 2022-05-13 | 山西建龙实业有限公司 | Multi-line cutting rolling and cooling control process production line |
| CN114769309A (en) * | 2022-06-02 | 2022-07-22 | 中冶赛迪工程技术股份有限公司 | Production line and process for slitting high-speed bars |
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2019
- 2019-08-20 CN CN201921356353.XU patent/CN210586365U/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692054B (en) * | 2020-11-18 | 2022-03-04 | 江苏省镔鑫钢铁集团有限公司 | Bar steel rolling and splitting process capable of reducing raw material cost |
| CN112692054A (en) * | 2020-11-18 | 2021-04-23 | 江苏省镔鑫钢铁集团有限公司 | Bar steel rolling and splitting process capable of reducing raw material cost |
| CN112846671A (en) * | 2021-01-26 | 2021-05-28 | 江苏省镔鑫钢铁集团有限公司 | Method and apparatus for producing metal bar |
| CN113600613B (en) * | 2021-08-19 | 2023-02-21 | 宝武集团鄂城钢铁有限公司 | Bar rolling method and application thereof |
| CN113600613A (en) * | 2021-08-19 | 2021-11-05 | 宝武集团鄂城钢铁有限公司 | Bar rolling method and application thereof |
| CN114260311A (en) * | 2021-10-26 | 2022-04-01 | 中冶南方工程技术有限公司 | High-yield rod production system |
| CN114260311B (en) * | 2021-10-26 | 2024-01-26 | 中冶南方工程技术有限公司 | High-yield bar production system |
| CN114472510A (en) * | 2022-01-19 | 2022-05-13 | 山西建龙实业有限公司 | Multi-line cutting rolling and cooling control process production line |
| CN114405992A (en) * | 2022-01-24 | 2022-04-29 | 中冶赛迪工程技术股份有限公司 | Production method and system for controlling shade and sun surfaces of double high-speed bars |
| CN114405992B (en) * | 2022-01-24 | 2023-11-28 | 中冶赛迪工程技术股份有限公司 | Production method and system for controlling double high-speed bar sunny and shady surfaces |
| CN114405994A (en) * | 2022-03-11 | 2022-04-29 | 陕钢集团产业创新研究院有限公司 | Method for rolling ER70S-6 wire rod by using thermomechanical control process arrangement |
| CN114405994B (en) * | 2022-03-11 | 2024-04-09 | 陕钢集团产业创新研究院有限公司 | Method for rolling ER70S-6 wire rod by using thermo-mechanical control process |
| CN114769309A (en) * | 2022-06-02 | 2022-07-22 | 中冶赛迪工程技术股份有限公司 | Production line and process for slitting high-speed bars |
| CN114769309B (en) * | 2022-06-02 | 2024-04-02 | 中冶赛迪工程技术股份有限公司 | High-speed bar cutting production line and process |
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