CN102189100B - Steel rolling device - Google Patents
Steel rolling device Download PDFInfo
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- CN102189100B CN102189100B CN 201110062262 CN201110062262A CN102189100B CN 102189100 B CN102189100 B CN 102189100B CN 201110062262 CN201110062262 CN 201110062262 CN 201110062262 A CN201110062262 A CN 201110062262A CN 102189100 B CN102189100 B CN 102189100B
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Abstract
The invention provides a steel rolling device. The steel rolling device comprises a rough/middle rolling mill, a pre-finishing mill, a finishing mill and a reducing sizing machine which are arranged sequentially; the pre-finishing mill, the fishing mill and the reducing sizing machine are connected sequentially trough conveying guide slots; the steel rolling device also comprises a bypass device for conveying steel; the bypass device is positioned on one side of the finishing mill and is also positioned between the pre-finishing mill and the reducing sizing machine; and one end of the bypass device is connected with the conveying guide slot between the pre-finishing mill and the finishing mill, and the other end of the bypass device is connected with the conveying guide slot between the finishing mill and the reducing sizing machine. By arranging the bypass device on the transmission side of the finishing mill, the bypass device is positioned between the area between the pre-finishing mill and the reducing sizing machine, and the two ends of the bypass device are connected with a turning conveying guide slot respectively. When steel is not required to be rolled by the finishing mill, the steel can be conveyed into the reducing sizing machine through the bypass device, so that the finishing mill system can be shut down, the energy consumption of electric power, hydraulic pressure, compressed air and the like which is required when equipment runs is reduced, and the cost is reduced.
Description
Technical field
The present invention relates to mechanical equipment of steel rolling, relate in particular to a kind of rolling unit.
Background technology
At present, along with constantly carrying out of industry and urban construction, to the also constantly increase of demand of steel.Usually adopt rolling unit to produce steel in the prior art.Rolling unit of the prior art generally includes: the thick middle milling train, pre-finishing mill, finishing mill and the reducing sizing mill that are arranged in order, pre-finishing mill, finishing mill and reducing sizing mill are connected by carrying guide groove to connect.Steel after the heat treated enter into thick milling train, pre-finishing mill is rolled, and then, the steel after will processing are rolled by carrying guide groove to be transported in the finishing mill, and are last, and steel are rolled the formation steel through reducing sizing mill again.Wherein, for the less steel of diameter, need to be rolled steel by finishing mill, steel are attenuated; For the larger steel of diameter, then need not to be rolled by finishing mill, at this moment, finishing mill only for delivery of steel with and steel are not rolled.
As from the foregoing, the rolling unit in the existing steel rolling technology is when need not finishing mill steel are rolled, and finishing mill only plays carries guide effect to steel.But because the steel temperature is very high, must provide a large amount of cooling waters to cool off, to avoid the infringement to finishing mill equipment.In the use of cooling water, need to guarantee that the milling train running just can reach the function of finishing mill water-tight.Therefore, rolling unit in the prior art consumes energy larger when need not to use finishing mill to be rolled, and has again the possibility of milling train water inlet contaminated product.
Summary of the invention
The invention provides a kind of rolling unit, in order to solve in the prior art rolling unit larger defective that when need not to use finishing mill to be rolled, consumes energy, electric power, hydraulic pressure, the consumption of compressed air equal energy source of equipment operation have been reduced, the hidden trouble of equipment of having avoided again milling train to intake easily when low speed rotation reaches purpose energy-saving and cost-reducing, cost efficiency.
The invention provides a kind of rolling unit, comprise the thick middle milling train, pre-finishing mill, finishing mill and the reducing sizing mill that are arranged in order setting, described pre-finishing mill, described finishing mill and the reducing sizing mill of being connected connect by the conveying guide groove successively, also comprise: for delivery of the by-pass collar of steel; Described by-pass collar is positioned at a side of described finishing mill, and between described pre-finishing mill and described reducing sizing mill; One end of described by-pass collar is connected with conveying guide groove between described pre-finishing mill and the described finishing mill, and the other end is connected with conveying guide groove between described finishing mill and the described reducing sizing mill.
Rolling unit provided by the invention, be provided with by-pass collar by the side at finishing mill, this by-pass collar is between pre-finishing mill and reducing sizing mill, and the both ends of by-pass collar are respectively in carrying guide groove to connect, thereby when need not to adopt finishing mill that steel are rolled processing, can be transported to the reducing sizing mill by by-pass collar from the steel of pre-finishing mill output, and need not to carry by finishing mill, thereby can close finishing mill, be implemented in when need not to use finishing mill to be rolled, reduced the electric power of equipment operation, hydraulic pressure, the compressed air equal energy source consumes, the hidden trouble of equipment of having avoided again milling train to intake easily when low speed rotation reaches energy-saving and cost-reducing, the purpose of cost efficiency.
Aforesaid rolling unit, described by-pass collar comprise entrance switching device, lie guide groove and outlet switching device, and an end of described lie guide groove is connected with described entrance switching device, and the other end is connected with described outlet switching device; Described entrance switching device is connected with conveying guide groove between described pre-finishing mill and the described finishing mill, and described outlet switching device is connected with conveying guide groove between described finishing mill and the described reducing sizing mill.
Aforesaid rolling unit can be carried steel stably in order to make by-pass collar, and described by-pass collar also comprises the pinch roll that moves ahead be used to driving described steel; Described pinch roll and is connected with described lie guide groove between described entrance switching device and described outlet switching device.
Aforesaid rolling unit, in order to regulate the suffered tightening force of steel by by-pass collar easily, described by-pass collar also comprises turning side looper, and described turning side looper and is connected with described lie guide groove between described entrance switching device and described outlet switching device; Described turning side looper comprises base plate and loam cake, described loam cake and described base plate hinged; One end of described base plate is provided with the import guide groove, and the other end of described base plate is provided with spout guide, described import guide groove be connected spout guide and connect respectively at described lie guide groove; Described loam cake is provided with locating slot, and when described loam cake covers after on the described base plate, a port of described locating slot is connected with described import guide groove, and the another port of described locating slot is connected with described spout guide; Also be installed with for the positioning hydraulic cylinders to described locating slot applied thrust on the described base plate.
Aforesaid rolling unit, described entrance switching device comprises the first slide rail, the first arc guide barrel, the first straight guide groove and the first sliding seat, described the first arc guide barrel and the described first straight guide groove are installed on described the first sliding seat, described the first sliding seat is slidingly installed on described the first slide rail, and the described first straight guide groove is parallel with the conveying guide groove between described pre-finishing mill and the described finishing mill; Described outlet switching device comprises the second slide rail, the second arc guide barrel, the second straight guide groove and the second sliding seat, described the second arc guide barrel and the described second straight guide groove are installed on described the second sliding seat, described the second sliding seat is slidingly installed on described the second slide rail, and the described second straight guide groove is parallel with the conveying guide groove between described finishing mill and the described reducing sizing mill.
Aforesaid rolling unit, described entrance switching device also comprises the first hydraulic cylinder, described the first hydraulic cylinder is fixedly connected with described the first sliding seat, and the axis of described the first hydraulic cylinder is parallel with described the first slide rail; Described outlet switching device also comprises the second hydraulic cylinder, and described the second hydraulic cylinder is fixedly connected with described the second sliding seat, and the axis of described the second hydraulic cylinder is parallel with described the second slide rail.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation one of rolling unit embodiment of the present invention;
Fig. 2 is the structural representation two of rolling unit embodiment of the present invention;
Fig. 3 a is the partial schematic diagram in A1 zone among Fig. 1;
Fig. 3 b is the partial schematic diagram in A2 zone among Fig. 1;
Fig. 4 a is the partial schematic diagram in B1 zone among Fig. 2;
Fig. 4 b is the partial schematic diagram in B2 zone among Fig. 2;
Fig. 5 is the structural representation of entrance switching device among the rolling unit embodiment of the present invention;
Fig. 6 is the structural representation of rolling unit embodiment middle outlet switching device of the present invention;
Fig. 7 is the structural representation of turning side looper closure state among the rolling unit embodiment of the present invention;
Fig. 8 is the structural representation of turning side looper opening among the rolling unit embodiment of the present invention.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 1 is the structural representation one of rolling unit embodiment of the present invention, and Fig. 2 is the structural representation two of rolling unit embodiment of the present invention.As depicted in figs. 1 and 2, the present embodiment rolling unit, comprise the pre-finishing mill 1, finishing mill 2 and the reducing sizing mill 3 that are arranged in order setting, pre-finishing mill 1, finishing mill 2 are connected with reducing sizing mill successively by carrying guide groove 4 to connect, and also comprise: for delivery of the by-pass collar 5 of steel; By-pass collar 5 is positioned at a side of finishing mill 2, and between pre-finishing mill 1 and reducing sizing mill 3; One end of by-pass collar 5 is connected with conveying guide groove 4 between pre-finishing mill 1 and the finishing mill 2, and the other end is connected with conveying guide groove 4 between finishing mill 2 and the reducing sizing mill 3.
Particularly, the present embodiment rolling unit is provided with by-pass collar 5 for delivery of steel in a side of finishing mill 2, one end of this by-pass collar 5 is connected with conveying guide groove 4 between pre-finishing mill 1 and the finishing mill 2, and the other end of by-pass collar 5 is connected with conveying guide groove 4 between finishing mill 2 and the reducing sizing mill 3.Be rolled in the process of steel at the present embodiment rolling unit, if in the time of need to being rolled processing by 2 pairs of steel of finishing mill, then steel enter into finishing mill 2 by conveying guide groove 4 after through pre-finishing mill 1 rolling processing, are rolled processing by 2 pairs of steel of finishing mill; Be not rolled when processing by 2 pairs of steel of finishing mill if do not need; the steel that transfer out from pre-finishing mill 1 will enter into by-pass collar 5; by by-pass collar 5 steel are transported in the reducing sizing mill 3; thereby need not steel are transported in the reducing sizing mill 3 by finishing mill 2; in this process; finishing mill 2 can be shut down, thereby effectively reduce the energy consumption of present embodiment rolling unit.Meanwhile; when the finishing mill 2 in the present embodiment rolling unit breaks down; can need not whole shutdown of present embodiment rolling unit keeped in repair; only need steel are carried by by-pass collar 5; just can separately finishing mill 2 be shut down and keep in repair, thereby make the present embodiment rolling unit can conveniently effectively keep in repair finishing mill 2.
The present embodiment rolling unit, be provided with by-pass collar by the side at finishing mill, this by-pass collar is between pre-finishing mill and reducing sizing mill, and the both ends of by-pass collar are respectively in carrying guide groove to connect, thereby when need not to adopt finishing mill that steel are rolled, can be transported to the reducing sizing mill by by-pass collar from the steel of pre-finishing mill output, and need not to carry by finishing mill, thereby can close finishing mill, be implemented in when need not to use finishing mill to be rolled, reduced the electric power of equipment operation, hydraulic pressure, the compressed air equal energy source consumes, the hidden trouble of equipment of having avoided again milling train to intake easily when low speed rotation reaches energy-saving and cost-reducing, the purpose of cost efficiency.
Based on technique scheme, optionally, by-pass collar 5 in the present embodiment comprises entrance switching device 51, lie guide groove 53 and outlet switching device 52, and an end of lie guide groove 53 is connected with entrance switching device 51, and the other end is connected with outlet switching device 52; Entrance switching device 51 is connected with conveying guide groove 4 between pre-finishing mill 1 and the finishing mill 2, and outlet switching device 52 is connected with conveying guide groove 4 between finishing mill 2 and the reducing sizing mill 3.
Particularly, connect by lie guide groove 53 between the entrance switching device 51 of the by-pass collar 5 in the present embodiment and the outlet switching device 52, entrance switching device 51 is connected with conveying guide groove 4 between pre-finishing mill 1 and the finishing mill 2, steel enter into by-pass collar 5 by entrance switching device 51, then steel will transmit in carrying guide groove 4, again be transported in the conveying guide groove 4 between finishing mill 2 and the reducing sizing mill 3 by outlet switching device 52 at last, thereby can make steel need not just can enter into reducing sizing mill 3 through finishing mill 2.
As shown in Figure 5 and Figure 6, entrance switching device 51 in the present embodiment can comprise the first slide rail 511, the first arc guide barrel 512, the first straight guide groove 513 and the first sliding seat 514, the first arc guide barrel 512 and the first straight guide groove 513 are installed on the first sliding seat 514, the first sliding seat 514 is slidingly installed on the first slide rail 511, and the first straight guide groove 513 is parallel with the conveying guide groove 4 between pre-finishing mill 1 and the finishing mill 2; Outlet switching device 52 comprises the second slide rail 521, the second arc guide barrel 522, the second straight guide groove 523 and the second sliding seat 524, the second arc guide barrel 522 and the second straight guide groove 523 are installed on the second sliding seat 524, the second sliding seat 524 is slidingly installed on the second slide rail 521, and the second straight guide groove 523 is parallel with the conveying guide groove 4 between finishing mill 2 and the reducing sizing mill 3.Concrete, entrance switching device 51 in the present embodiment comprises the first arc guide barrel 512 and the first straight guide groove 513, the first arc guide barrel 512 and the first straight guide groove 513 can slide to change the position of the first arc guide barrel 512 and the first straight guide groove 513 at the first slide rail 511 by the first sliding seat 514, thereby can realize that guide groove 513 optionally is connected with carrying guide groove 4 the first arc guide barrel 512 with being connected directly; Same, outlet switching device 52 in the present embodiment comprises the second arc guide barrel 522 and the second straight guide groove 523, the second arc guide barrel 522 and the second straight guide groove 523 can slide to change the position of the second arc guide barrel 522 and the second straight guide groove 523 at the second slide rail 521 by the second sliding seat 524, thereby can realize that guide groove 523 optionally is connected with carrying guide groove 4 the second arc guide barrel 522 with being connected directly.Just can realize in the present embodiment rolling unit rolled steel or carry by finishing mill 2 by entrance switching device 51 and outlet switching device 52, perhaps need not through finishing mill 2 and carry by by-pass collar 5.Wherein, for the first sliding seat 514 of controlling easily in the entrance switching device 51 slides at the first slide rail 511, same, for the second sliding seat 524 in the easily control outlet switching device 52 slides at the second slide rail 521, entrance switching device 51 in the present embodiment can also comprise the first hydraulic cylinder 515, the first hydraulic cylinder 515 is fixedly connected with the first sliding seat 514, and the axis of the first hydraulic cylinder 515 is parallel with the first slide rail 511; Outlet switching device 52 can comprise also that the second hydraulic cylinder 525, the second hydraulic cylinders 525 and the second 524 of slips are fixedly connected with, and the axis of the second hydraulic cylinder 525 is parallel with the second slide rail 521.Can drive the first sliding seat 514 by the first hydraulic cylinder 515 and reciprocatingly slide at the first slide rail 511, reciprocatingly slide at the second slide rail 521 and can drive the second sliding seat 524 by the second hydraulic cylinder 525.
Further, can carry stably steel in order to make by-pass collar 5, by-pass collar 5 can also comprise the pinch roll 54 that moves ahead for driving steel; Pinch roll 54 and is connected with lie guide groove 53 between entrance switching device 51 and outlet switching device 52.Concrete, the pinch roll 54 in the present embodiment can apply driving force to the steel that are arranged in lie guide groove 53, thereby makes steel can have enough power to transmit stably at lie guide groove 53.
Further, in order to regulate the suffered pulling force of steel by by-pass collar 5 easily, by-pass collar 5 can also comprise turning side looper 55, and turning side looper 55 and is connected with lie guide groove 53 between entrance switching device 51 and outlet switching device 52; As shown in Figure 7 and Figure 8, turning side looper 55 comprises base plate 551 and loam cake 552, and loam cake 552 is hinged with base plate 551; One end of base plate 551 is provided with import guide groove 553, and the other end of base plate 551 is provided with spout guide 554, and import guide groove 553 is connected with spout guide respectively at 53 connections of lie guide groove; Loam cake 552 is provided with locating slot 555, and when loam cake 552 covers after on the base plate 551, a port of locating slot 555 is connected with import guide groove 553, and the another port of locating slot 555 is connected with spout guide 554; Also be installed with on the base plate 551 for the positioning hydraulic cylinders 556 to the locating slot applied thrust.Concrete, the turning side looper 55 in the present embodiment can be regulated the suffered pulling force of steel.Just entered into the process of by-pass collar 5 by entrance switching device 51 at steel, loam cake 552 in the turning side looper 55 covers on base plate 551, thereby steel can be transported in the outlet switching device 52 stably by import guide groove 553, locating slot 555 and spout guide 554; After steel are transported in the reducing sizing mill 3 in by by-pass collar 5, just can open loam cake 552, at this moment, positioning hydraulic cylinders 556 will be resisted against on the locating slot 555, to the steel applied thrust in the locating slot 555, thereby make steel can bear uniform pulling force, avoid steel the phenomenon of stacking or excessive stretching to occur.
Below in conjunction with accompanying drawing 1-Fig. 4 a the course of work of present embodiment rolling unit is described.
When not needing finishing mill that steel are rolled, shown in Fig. 3 a and 3b, by-pass collar 5 will be for delivery of steel in the present embodiment rolling unit, concrete: under the effect of the first hydraulic cylinder 515, the first sliding seat 514 of entrance switching device 51 will drive the first arc guide barrel 512 and the first straight guide groove 513 slides at the first slide rail 511, the first arc guide barrel 512 is connected with conveying guide groove 4 between pre-finishing mill 1 and the finishing mill 2, enters into by-pass collar 5 from the steel of pre-finishing mill 1 output through the first arc guide barrel 512; Meanwhile, under the effect of the second hydraulic cylinder 525, the second sliding seat 524 of outlet switching device 52 will drive the second arc guide barrel 522 and the second straight guide groove 523 slides at the second slide rail 521, the second arc guide barrel 522 is connected with conveying guide groove 4 between finishing mill 2 and the reducing sizing mill 3, thereby steel are transported in the reducing sizing mill 3 by by-pass collar 5.
When the needs finishing mill is rolled steel, as shown in Figs. 4a and 4b, by-pass collar 5 will be carried for the steel that only are used for two railway switch places in the present embodiment rolling unit, concrete: under the effect of the first hydraulic cylinder 515, the first sliding seat 514 of entrance switching device 51 will drive the first arc guide barrel 512 and the first straight guide groove 513 slides at the first slide rail 511, the first straight guide groove 513 is connected with conveying guide groove 4 between pre-finishing mill 1 and the finishing mill 2, and the steel that milling train, pre-finishing mill 1 are exported from thick enter into finishing mill 2 through the first straight guide groove 513; Meanwhile, under the effect of the second hydraulic cylinder 525, the second sliding seat 524 of outlet switching device 52 will drive the second arc guide barrel 522 and the second straight guide groove 523 slides at the second slide rail 521, the second straight guide groove 523 is connected with conveying guide groove 4 between finishing mill 2 and the reducing sizing mill 3, thereby steel are transported in the reducing sizing mill 3 after finishing mill 2 is rolled processing.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (5)
1. rolling unit, comprise the thick middle milling train, pre-finishing mill, finishing mill and the reducing sizing mill that are arranged in order setting, described thick middle milling train, described pre-finishing mill, described finishing mill and the reducing sizing mill of being connected connect by the conveying guide groove successively, it is characterized in that, also comprise: for delivery of the by-pass collar of steel; Described by-pass collar is positioned at a side of described finishing mill, and between described pre-finishing mill and described reducing sizing mill; One end of described by-pass collar is connected with conveying guide groove between described pre-finishing mill and the described finishing mill, and the other end is connected with conveying guide groove between described finishing mill and the described reducing sizing mill; Described by-pass collar comprises entrance switching device, lie guide groove and outlet switching device, and an end of described lie guide groove is connected with described entrance switching device, and the other end is connected with described outlet switching device; Described entrance switching device is connected with conveying guide groove between described pre-finishing mill and the described finishing mill, and described outlet switching device is connected with conveying guide groove between described finishing mill and the described reducing sizing mill.
2. rolling unit according to claim 1 is characterized in that, described by-pass collar also comprises the pinch roll that moves ahead be used to driving described steel; Described pinch roll and is connected with described lie guide groove between described entrance switching device and described outlet switching device.
3. rolling unit according to claim 1 is characterized in that, described by-pass collar also comprises turning side looper, and described turning side looper and is connected with described lie guide groove between described entrance switching device and described outlet switching device; Described turning side looper comprises base plate and loam cake, described loam cake and described base plate hinged; One end of described base plate is provided with the import guide groove, and the other end of described base plate is provided with spout guide, described import guide groove be connected spout guide and be connected with described lie guide groove respectively; Described loam cake is provided with locating slot, and when described loam cake covers after on the described base plate, a port of described locating slot is connected with described import guide groove, and the another port of described locating slot is connected with described spout guide; Also be installed with for the positioning hydraulic cylinders to described locating slot applied thrust on the described base plate.
4. rolling unit according to claim 1, it is characterized in that, described entrance switching device comprises the first slide rail, the first arc guide barrel, the first straight guide groove and the first sliding seat, described the first arc guide barrel and the described first straight guide groove are installed on described the first sliding seat, described the first sliding seat is slidingly installed on described the first slide rail, and the described first straight guide groove is parallel with the conveying guide groove between described pre-finishing mill and the described finishing mill; Described outlet switching device comprises the second slide rail, the second arc guide barrel, the second straight guide groove and the second sliding seat, described the second arc guide barrel and the described second straight guide groove are installed on described the second sliding seat, described the second sliding seat is slidingly installed on described the second slide rail, and the described second straight guide groove is parallel with the conveying guide groove between described finishing mill and the described reducing sizing mill.
5. rolling unit according to claim 4 is characterized in that, described entrance switching device also comprises the first hydraulic cylinder, and described the first hydraulic cylinder is fixedly connected with described the first sliding seat, and the axis of described the first hydraulic cylinder is parallel with described the first slide rail; Described outlet switching device also comprises the second hydraulic cylinder, and described the second hydraulic cylinder is fixedly connected with described the second sliding seat, and the axis of described the second hydraulic cylinder is parallel with described the second slide rail.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110062262 CN102189100B (en) | 2011-03-08 | 2011-03-08 | Steel rolling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110062262 CN102189100B (en) | 2011-03-08 | 2011-03-08 | Steel rolling device |
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| CN102189100A CN102189100A (en) | 2011-09-21 |
| CN102189100B true CN102189100B (en) | 2013-03-20 |
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| CN 201110062262 Active CN102189100B (en) | 2011-03-08 | 2011-03-08 | Steel rolling device |
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| CN107052064B (en) * | 2017-01-12 | 2019-06-18 | 中冶华天南京工程技术有限公司 | Binary channels turning promotes guide groove |
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| CN1799717A (en) * | 2004-12-31 | 2006-07-12 | 马鞍山钢铁股份有限公司 | Hot-rolling anneal-free coil rod production method for 8.8 grade high-strength cold forging steel |
| CN101428298A (en) * | 2008-12-03 | 2009-05-13 | 无锡西姆莱斯石油专用管制造有限公司 | Process for manufacturing pipeline tube |
| CN101829688A (en) * | 2010-05-28 | 2010-09-15 | 北京科技大学 | Cooling method of heavy and medium plate controlled rolling intermediate blank |
| CN202045126U (en) * | 2011-03-08 | 2011-11-23 | 青岛钢铁控股集团有限责任公司 | Steel rolling device |
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2011
- 2011-03-08 CN CN 201110062262 patent/CN102189100B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6105412A (en) * | 1998-09-19 | 2000-08-22 | Sms Schloemann-Siemag Aktiengesellschaft | Continuous light-section or wire train |
| CN1799717A (en) * | 2004-12-31 | 2006-07-12 | 马鞍山钢铁股份有限公司 | Hot-rolling anneal-free coil rod production method for 8.8 grade high-strength cold forging steel |
| CN101428298A (en) * | 2008-12-03 | 2009-05-13 | 无锡西姆莱斯石油专用管制造有限公司 | Process for manufacturing pipeline tube |
| CN101829688A (en) * | 2010-05-28 | 2010-09-15 | 北京科技大学 | Cooling method of heavy and medium plate controlled rolling intermediate blank |
| CN202045126U (en) * | 2011-03-08 | 2011-11-23 | 青岛钢铁控股集团有限责任公司 | Steel rolling device |
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Effective date of registration: 20170405 Address after: 266409 Qingdao City, Shandong Province, integrated road, No. 1886, Huangdao Patentee after: QINGDAO SPECIAL STEEL CO., LTD. Address before: 266043 Zunyi Road, Licang District, Shandong, No. 5, No. Patentee before: Qingdao Iron &. Steel Holding Group Corp., Ltd. |