CN106311777B - Hierarchical accuse cold system of bar finish rolling - Google Patents
Hierarchical accuse cold system of bar finish rolling Download PDFInfo
- Publication number
- CN106311777B CN106311777B CN201610768664.1A CN201610768664A CN106311777B CN 106311777 B CN106311777 B CN 106311777B CN 201610768664 A CN201610768664 A CN 201610768664A CN 106311777 B CN106311777 B CN 106311777B
- Authority
- CN
- China
- Prior art keywords
- finish rolling
- water
- cooling
- group
- finishing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000001816 cooling Methods 0.000 claims abstract description 53
- 239000000498 cooling water Substances 0.000 claims abstract description 27
- 238000004513 sizing Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 238000003801 milling Methods 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 2
- 230000008520 organization Effects 0.000 abstract 1
- 239000002436 steel type Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 229910000639 Spring steel Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 206010000496 acne Diseases 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention relates to a graded cold control system for bar finish rolling, which reforms the layout of the prior old bar finishing mill group, removes the idle loop between the finishing mill groups and the useless loop mechanism between the finishing mills when changing the product specification, and installs a cold-controllable water-passing guide groove on the prior base; replacing the rolled guide pipes of all finishing mills in front of the finished stand with controlled-cooling rolled guide pipes; a first group of cooling water tanks is arranged between the finishing mill group and the reducing and sizing mill group, and a second group of cooling water tanks is arranged between the reducing and sizing mill group and the 3# flying shear. By updating the fittings of the rolling mill, adding the cooling control water tank, designing the layout of the cooling control equipment, reducing the finish rolling temperature of the bars by stages and steps, realizing the temperature control after finish rolling in the finish rolling process before and after finish rolling for bars of different steel types and different specifications, and particularly controlling and cooling the phase change key point, thereby achieving the purposes of improving the organization performance of finished rolled pieces, reducing the alloy cost and improving the product quality grade.
Description
Technical field
The present invention relates to a kind of classification control cooling system of bar finish rolling, and in particular to it is a kind of to bar before finish rolling, finish rolling
During and finish rolling after classification control cooling system.
Background technology
Water cooling device is to modernize an important component indispensable on Bar Wire Product production line, installed in finishing mill
Between or finishing mill after, be respectively used to stocking carry out operation of rolling temperature control and finished product cooling temperature control, to reach
Improve the purpose of properties of product.And on old-fashioned Bar Wire Product production line, can not due to the position of not reserved Water cooling device
Solve the problems, such as that cooling capacity deficiency and finishing temperature are excessive, therefore low-grade product or first by adding alloy can only be produced
Product mechanical performance is usually improved, does not possess market competition advantage.
Carry the rolling line of Water cooling device at present, usually all use single device for cooling water tank, or only after finish rolling on
Multigroup water tank is set before cold bed, or one group of water tank is set before last 1~2 finishing mill, one group of water is set again after finishing mill
Case, is in arranged in series between multigroup water tank, and cooling section is excessively concentrated, and is easy to cause that inhomogeneous cooling inside and outside steel is even, and surface is easy
There are the abnormal structures such as tempering of quenching.
On the other hand, the system suitability of single device for cooling water tank is poor, suffer from existing producing line topology layout and
The limitation of bar specification, when the bar description produced changes, original control cooling system can not usually be suitable for new
Production status, and need to be laid with water tank and relevant device again, time and effort consuming.
Fig. 1 is a kind of common old-fashioned finishing bar mill group schematic layout pattern, and finishing bar mill group vertical, horizontal is rolled by multiple
Machine is alternately composed in series, in order to keep good shape of rolling piece, size, carry out tension free rolling, usually in the sleeping of mm finishing mill unit
Kink is set between formula milling train and vertical mill, to ensure that the operation of rolling is steadily smoothed out.When rolling small-sized bar, most
Latter finishing mill is often used as finished frame, and the kink between mm finishing mill unit plays irreplaceable effect, but when rolling compared with
During large scale rod bar, finished frame reach, unnecessary finishing mill needs to remove, and the kink between finishing mill is needed replacing as guide groove,
To ensure that rolled piece passes through, for this old-fashioned mm finishing mill unit without reserved Water cooling device, the empty mistake of guide groove position
Cause the significant wastage in space.
The content of the invention
To solve the above problems, the present invention provides a kind of classification control cooling system of bar finish rolling, by update milling train accessory,
Addition control cold water storage cistern, design control-cooling equipment layout, reduction bar final rolling temperature stage by stage, step by step, for different steel grades, no
The bar of same specification, before realizing finish rolling, in finishing stands, the temperature control after finish rolling, the control of especially phase transformation key point is cold
But, so as to reach the structure property for improving finished product rolled piece, cost of alloy is reduced, improves the purpose of product quality class.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of classification control cooling system of bar finish rolling, including reducing-sizing mill, mm finishing mill unit, kink, cooling water tank, Chuan Shui
Guide groove, roll rear tube and flying shear；Mm finishing mill unit is composed in series by more milling trains；The empty kink and more crossed for removing between mm finishing mill unit
Loop mechanism useless between finishing mill when changing product specification, installs on original pedestal and controllable cold wears water guide groove；Finished product machine
The rear tube that rolls of all finishing mills before frame is changed to and controllable cold rolls rear tube；Set between mm finishing mill unit and reducing-sizing mill
First group of cooling water tank, sets second group of cooling water tank between reducing-sizing mill and 3# flying shears.
Further, the outlet rolled rear tube and be installed on every finishing mill of the classification control cooling system of the bar finish rolling
Place.
Further, the classification of the bar finish rolling controls first group of cooling system and second group of cooling water tank includes multiple water
Case, interval is equipped between multiple water tanks or is arranged in series in side-by-side fashion, connects recirculating cooling water system.
Further, the water guide groove of wearing of the classification control cooling system of the bar finish rolling is equipped with independent flow monitoring and valve
Accelerator control system, can adjust water size.
Further, the water guide groove of wearing of the classification control cooling system of the bar finish rolling shares a pedestal with kink, can root
Flexibly replaced according to the rolling specs at scene with controlling cold requirement.
Further, the water guide groove of wearing of the classification control cooling system of the bar finish rolling is both connected to same water circulation control
Strainer is mounted in system processed and on water supply pipe, to ensure water quality, prevents nozzle blockage.
Further, the bar finish rolling classification control cooling system wear water guide groove be provided with infrared or photosensitive probe and
Automatic servo system, control time delay and butterfly switch, spray water when realizing rolled piece by wearing water installations, the behaviour that when empty steel cuts off the water
Make.
The principle that the present invention uses：The fine-grained steel using the cold production technology of inter critical austenite control rolling control as core is used to produce
Technology, emphasizes the temperature control in the temperature control in production process, especially finishing stands, using steel material in heat
Phase conversion mechanism in process realizes structure refinement, and is grown up by cooling controlling and rolling controlling process controlling measurement crystal grain and even tissue
Change, obtain good product structure property, reached reduction cost of alloy, improve the purpose of product quality class.
Compared with prior art, the present invention have the advantages that：
The present invention is laid out by updating milling train accessory, addition control cold water storage cistern, design control-cooling equipment, stage by stage, step by step
Bar final rolling temperature is reduced, for the bar of different steel grades, different size, can flexibly and effectively be realized to bar production process
In classification, the control cooling of sub-sectional cooling, especially phase transformation key point, avoid because concentrating cooling to cause the production of abnormal structure
It is raw, create conditions for the controlled rolling and controlled cooling of bar, and be related to that equipment investment is small, and rolling line suitability is good.
Brief description of the drawings
Fig. 1 is common old-fashioned finishing bar mill rolling line device layout figure；
Fig. 2 is the finishing bar mill rolling line device layout schematic diagram of embodiment 1；
Fig. 3 is the finishing bar mill rolling line device layout schematic diagram of embodiment 2；
Fig. 4 is the finishing bar mill rolling line device layout schematic diagram of embodiment 3；
Wherein, 1- wears water guide groove, and 2- rolls rear tube, first group of cooling water tank of 3-, second group of cooling water tank of 4-.
Embodiment
Below by taking certain steel mill's Bars Workshop as an example, the present invention will be further described, but does not limit the present invention.
A kind of classification control cooling system of bar finish rolling, including reducing-sizing mill, mm finishing mill unit, kink, cooling water tank, Chuan Shui
Guide groove, roll rear tube and flying shear；Mm finishing mill unit is composed in series by 6 milling trains (13#~18#)；Reducing-sizing mill is by 4 three roller Y
Type milling train forms.Remove kink machine useless between finishing mill when the sky between mm finishing mill unit crosses kink and replaces product specification
Structure, installs on original pedestal and controllable cold wears water guide groove；All finishing mills before finished frame roll that rear tube is changed to can
Control and cold roll rear tube；First group of cooling water tank, reducing-sizing mill and 3# flying shears are set between mm finishing mill unit and reducing-sizing mill
Between second group of cooling water tank is set.Wherein first group of cooling water tank includes 2~3 water tanks (can also be according to the specific bar in scene
Part suitably increases and decreases), second group of cooling water tank includes 4~6 water tanks (can also suitably increase and decrease according to live actual conditions), each
Water tank grows 2~3m, and 60~80 DEG C of maximum one, interval is equipped between water tank or is arranged in series in side-by-side fashion,
Connect recirculating cooling water system.Water tank pedestal is equipped with cross traveling trolley and the mobile track of cross traveling trolley, each water tank can be single
Only is in orbit traversing, it is cold can to each serve as finish to gauge control according to the position that steel grade is different, specification difference moves freely water tank
With the purpose of cooling control after rolling.Wear water guide groove and be equipped with independent flow monitoring and valve control system, can adjust water size, even
It is connected in same water circulation control system and is mounted on strainer on water supply pipe, to ensure water quality, prevents nozzle blockage.And
Wear water guide groove and be provided with infrared or photosensitive probe and automatic servo system, control time delay and butterfly switch, realize that rolled piece leads to
Cross and spray water when wearing water installations, the operation that when empty steel cuts off the water, reduces blackhead steel and the occurrence probability of piling of steel.
Embodiment 1
As shown in Fig. 2, Φ 14mm specification spring steel bar finished frames are reducing-sizing mill, replace 2# flying shears and rolled with 13#
Empty between machine cross kink for it is controllable it is cold wear water guide groove, realize control before finish rolling it is cold；Replace the empty mistake between 17# milling trains and 18# milling trains
Kink for it is controllable it is cold wear water guide groove, while replace after all finishing mills roll rear tube for it is controllable it is cold roll rear tube, realize
Controlled in finish rolling cold；First group of cooling water tank is set between 18# milling trains and reducing-sizing mill, realize control before finish to gauge it is cold；It is fixed subtracting
Second group of cooling water tank is set between footpath unit and 3# flying shears, realizes cooling control after rolling.Finally, entry temperature at finishing can be down to
1000 DEG C, finishing temperature is down to 950 DEG C, and temperature on cooling table is down to 810 DEG C, 8~9 grades of grain size.
Comparative example 1
Φ 14mm specification spring steel bar finished frames are reducing-sizing mill, its finish rolling (13# milling trains) inlet temperature is about
1040 DEG C, under conditions of control-cooling equipment is not installed, temperature can reach 1070 DEG C after its finish to gauge, and temperature on cooling table is about 1020
DEG C, grain size is 6~7 grades.
Embodiment 2
As shown in figure 3, Φ 22mm specification spring steel bars finished frames are 18# milling trains, replace between 2# flying shears and 13# milling trains
It is empty cross kink for it is controllable it is cold wear water guide groove, realize control before finish rolling it is cold；Replace and roll rear tube after 13#~17# milling trains for can
Control it is cold roll rear tube, realize controlled in finish rolling it is cold；The empty kink of crossing for replacing between 17# milling trains and 18# milling trains cold wears water to be controllable
Guide groove, realize control before finish to gauge it is cold；Replace subtract before sizing group empty cross kink for it is controllable it is cold wear water guide groove, in 18# milling trains with subtracting
First group of cooling water tank is set between sizing unit, second group of cooling water tank is set between reducing-sizing mill and 3# flying shears, it is real
Existing cooling control after rolling.Finally, entry temperature at finishing can be made to be down to 1000 DEG C, finishing temperature is down to 980 DEG C, and temperature on cooling table is down to
820 DEG C, 8~9 grades of grain size.
Comparative example 2
Φ 22mm specification spring steel bars finished frames are 18# milling trains, its finish rolling (13# milling trains) inlet temperature is about 1030
DEG C, under conditions of control-cooling equipment is not installed, temperature can reach 1060 DEG C after its finish to gauge, and temperature on cooling table is about 1010 DEG C,
Grain size is 5~6 grades.
Embodiment 3
As shown in figure 4, Φ 28mm specification spring steel bars finished frames are 14# milling trains, replace between 2# flying shears and 13# milling trains
It is empty cross kink for it is controllable it is cold wear water guide groove, realize control before finish rolling it is cold；It is controllable cold to replace the rear tube that rolls after 13# milling trains
Roll rear tube, realize controlled in finish rolling it is cold；Replace between 14#~18# milling trains it is empty cross kink for it is controllable it is cold wear water guide groove, in 18#
First group of cooling water tank is set between milling train and reducing-sizing mill, second group of cooling is set between reducing-sizing mill and 3# flying shears
Water tank, realizes cooling control after rolling.Finally, entry temperature at finishing can be made to be down to 1000 DEG C, finishing temperature is down to 980 DEG C, upper cold bed temperature
Degree is down to 830 DEG C, 7~8 grades of grain size.
Comparative example 3
Φ 28mm specification spring steel bars finished frames are 14# milling trains, its finish rolling (13# milling trains) inlet temperature is about 1020
DEG C, under conditions of control-cooling equipment is not installed, temperature can reach 1030 DEG C after its finish to gauge, and temperature on cooling table is about 1000 DEG C,
Grain size is 5~6 grades.
, can be easily real for those skilled in the art although embodiment of the present invention is disclosed as above
Now other modification, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited to
Specific details.
Claims (7)
- A kind of 1. classification control cooling system of bar finish rolling, it is characterised in that：Control cooling system include reducing-sizing mill, mm finishing mill unit, Kink, cooling water tank, wear water guide groove, roll rear tube and flying shear；Mm finishing mill unit is composed in series by more milling trains；Remove mm finishing mill unit Between empty finishing mill when crossing kink and replacing product specification between useless loop mechanism, installed on original pedestal controllable cold Wear water guide groove；The rear tube that rolls of all finishing mills before finished frame is changed to and controllable cold rolls rear tube；Mm finishing mill unit with First group of cooling water tank is set between reducing-sizing mill, second group of cooling water tank is set between reducing-sizing mill and 3# flying shears.
- 2. the classification control cooling system of bar finish rolling according to claim 1, it is characterised in that：Described rolls rear tube installation In the exit of every finishing mill.
- 3. the classification control cooling system of bar finish rolling according to claim 1, it is characterised in that：Described first group and second Group cooling water tank includes multiple water tanks, and interval is equipped between multiple water tanks or is arranged in series in side-by-side fashion, connection circulation Cooling water system.
- 4. the classification control cooling system of bar finish rolling according to claim 1, it is characterised in that：The water guide groove of wearing is all provided with There are independent flow monitoring and valve control system, can adjust water size.
- 5. the classification control cooling system of bar finish rolling according to claim 4, it is characterised in that：Described wears water guide groove and work Set shares a pedestal, can flexibly be replaced according to the rolling specs at scene with controlling cold requirement.
- 6. the classification control cooling system of bar finish rolling according to claim 4, it is characterised in that：The water guide groove of wearing connects It is connected in same water circulation control system and is mounted on strainer on water supply pipe, to ensure water quality, prevents nozzle blockage.
- 7. the classification control cooling system of the bar finish rolling according to any claim in claim 4-6, it is characterised in that：Institute The water guide groove of wearing stated is provided with infrared or photosensitive probe and automatic servo system, and control time delay and butterfly switch, realization are rolled Spray water when part is by wearing water installations, the operation that when empty steel cuts off the water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768664.1A CN106311777B (en) | 2016-08-30 | 2016-08-30 | Hierarchical accuse cold system of bar finish rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768664.1A CN106311777B (en) | 2016-08-30 | 2016-08-30 | Hierarchical accuse cold system of bar finish rolling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106311777A CN106311777A (en) | 2017-01-11 |
| CN106311777B true CN106311777B (en) | 2018-04-17 |
Family
ID=57789306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610768664.1A Active CN106311777B (en) | 2016-08-30 | 2016-08-30 | Hierarchical accuse cold system of bar finish rolling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106311777B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586662B (en) * | 2019-09-03 | 2024-02-06 | 石横特钢集团有限公司 | Full-flow program-controlled rolling and cooling production line for bars |
| CN112872028A (en) * | 2020-12-29 | 2021-06-01 | 盐城市联鑫钢铁有限公司 | Low-cost high-quality wire controlled cooling process method |
| CN114951307B (en) * | 2022-05-20 | 2024-05-28 | 广西钢铁集团有限公司 | Direct rolling sectional control cooling method for hot rolled ribbed steel bar |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001300628A (en) * | 2000-04-21 | 2001-10-30 | Nippon Steel Corp | Method for cooling joined steel sheet |
| CN101518781A (en) * | 2009-03-31 | 2009-09-02 | 中国钢研科技集团公司 | Millarray for producing ultra-fine crystal bar and milling method thereof |
| CN103551403B (en) * | 2013-10-29 | 2015-06-17 | 中冶建筑研究总院有限公司 | Controlled rolling and controlled cooling system for bars |
| CN203817045U (en) * | 2014-05-19 | 2014-09-10 | 中冶赛迪工程技术股份有限公司 | Production technological arrangement for screw-thread steel bar with three ribbed sides |
| CN104001742A (en) * | 2014-05-21 | 2014-08-27 | 中冶南方工程技术有限公司 | Method for achieving controlled cooling on rolled pieces between and after bar finishing mill units |
| CN104148408A (en) * | 2014-07-09 | 2014-11-19 | 首钢总公司 | Multifunctional bar graded temperature control rolling and controlled cooling equipment |
| CN204194449U (en) * | 2014-10-22 | 2015-03-11 | 南京钢铁股份有限公司 | A kind of Controlled cooling system of hot rolling bearing steel bar |
| CN105057356B (en) * | 2015-08-05 | 2017-09-01 | 中冶华天工程技术有限公司 | The technique that two sections of controlled rollings and cooling control after rolling produce screw-thread steel |
| CN105170646A (en) * | 2015-10-26 | 2015-12-23 | 中冶赛迪工程技术股份有限公司 | Economical bar sizing production line and method |
-
2016
- 2016-08-30 CN CN201610768664.1A patent/CN106311777B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106311777A (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212525433U (en) | Double-high-rod finish rolling system and production line | |
| CN101381806B (en) | Refrigerating device of belt steel and cooling and controlling method thereof | |
| CN106311777B (en) | Hierarchical accuse cold system of bar finish rolling | |
| CN101678415B (en) | Process and plant for the production of metal strip | |
| CN102247981B (en) | Structural steel rolling production line and production process thereof | |
| CN103551404B (en) | A kind of production method of stainless screw-thread steel | |
| CN106180192B (en) | A kind of wire and rod continuous casting billet high speed direct sending directly rolls system and method | |
| CN105057356B (en) | The technique that two sections of controlled rollings and cooling control after rolling produce screw-thread steel | |
| CN101293258B (en) | Process for manufacturing hot rolled steel strips by continuous casting and rolling middle bar strip | |
| JP2014028404A (en) | Manufacturing method and manufacturing plant of rolling product | |
| CN106694572B (en) | On-line rolling technique adjustment system and method based on roll wear detection | |
| CN103079719B (en) | For the method manufacturing strip steel by continuous rolling | |
| CN105170646A (en) | Economical bar sizing production line and method | |
| CN209520198U (en) | A kind of wire and rod continuous casting and rolling production line | |
| CN104148408A (en) | Multifunctional bar graded temperature control rolling and controlled cooling equipment | |
| CN107096795A (en) | A kind of manufacture method for reducing edge defects of hot rolled strip steel | |
| CN103599946A (en) | Thin stainless steel product rolling process control method | |
| CN106513614B (en) | The method for carrying out the production of all steel kind strand using billet caster | |
| CN205926594U (en) | Rolling production line of long material | |
| CN105817487B (en) | The control method of bearing Steel Bar net carbide and the device for implementing this method | |
| CN202087575U (en) | Profile steel rolling production line | |
| CN103447316A (en) | Temperature-controlling and cold-controlling method and process layout for final molding rolling of high-speed wire rods | |
| CN109014102B (en) | Secondary cooling method for high-drawing-speed medium-thin slab continuous casting machine | |
| CN102343358B (en) | For the manufacture of the casting of elongated metal rolled products and continuous rolling method and equipment | |
| CN105710131A (en) | Method for axial distribution of water yield of hot continuous rolling roller cooling water outlet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |