CN100376336C - Ultrafast cooling device for wire and rod hot rolling production line - Google Patents
Ultrafast cooling device for wire and rod hot rolling production line Download PDFInfo
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- CN100376336C CN100376336C CNB2005100468224A CN200510046822A CN100376336C CN 100376336 C CN100376336 C CN 100376336C CN B2005100468224 A CNB2005100468224 A CN B2005100468224A CN 200510046822 A CN200510046822 A CN 200510046822A CN 100376336 C CN100376336 C CN 100376336C
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Abstract
The present invention relates to a super-rapid cooling device used for a hot rolling production line of wires and bars, which comprises at least one cooler, at least one main valve, at least one main water pipe, a high-pressure water pump, an outer shell of a box body of a cooler, a trestle and at least one pair of moving wheels fixed on the bottom of the trestle. The present invention is characterized in that the cooler is composed of an inlet flared pipe, an outlet guiding pipe, a main body and a sleeve barrel of the guiding pipe which are connected by bolts or screws, and a gap between an inlet flared part and the outlet guiding pipe is used for forming a water spraying ring; the main body of the cooler is a hollow cavity of which the central axis needs to be provided with the inlet flared pipe and an outlet pipe, and the bottom is provided with water inlets which are connected by the main water pipe, the main water valve and the high-pressure water pump; besides the main body of the cooler, the trestle is also provided with a roller passage and an oil cylinder driving the trestle to horizontally move. A reversal water controlling device of which the structure is similar to the cooler is also designed so as to prevent high-pressure water from splashing. The super-rapid cooling device of the present invention can successfully implement the novel technology of rapid cooling of rolled high-strength steel plates with ribs, the performance indexes of steel bars with ribs are simply and effectively improved, and the excellent economic benefit is obtained.
Description
Technical field
The invention belongs to the technical field of cooling, promptly proposed a kind of wire rod and rod hot rolling production line Ultrafast cooling device with the device of continuous processing band or wire rod.
Background technology
Smithcraft comprises three basic comprisings, smelts---obtain the metal of certain ingredients; Processing---obtain the goods of certain outer shape; Thereby heat treatment---make metal obtain certain internal microstructure by it and reach desired performance indications.Any heat treatment all be by METAL HEATING PROCESS to certain temperature and cooling subsequently, thereby make the desired variation of internal microstructure generation of metal.
Low-carbon hot-rolled steel or low-alloy steel wire rod or bar are normally taked to quench or the method for lonneal is heat-treated.For tensile strength and the strong flexor ratio that improves wire rod and bar, and consider its plasticity and solderability,,, can improve the mechanical property and the obdurability of product significantly by the supper-fast cooling after the hot rolling particularly for Ribbed Bar.But the supporting cooling device of existing and hot rolling line can't satisfy the requirement of this new technology.Thereby supper-fast novel technique for cooling still can't be implemented in manufacturer at present after making high strength ribbed reinforced bar roll.
Summary of the invention
Purpose of the present invention seek exactly a kind of can to wire rod after the hot rolling or bar, particularly hot rolled ribbed steel bar implement supper-fast cooling operations, can be well with produce wire rod and the supporting device of rod hot rolling production line.
The requirement of rolling the supper-fast process for cooling in back by high strength ribbed reinforced bar, when Ribbed Bar behind tandem mill finished product hole exits, need and can in 0.4～0.8 second, make the reinforcing bar entire body be chilled to 545～720 ℃ with cooling velocity greater than 700 ℃/second.
The present invention proposes a kind of for wire rod and the matching used Ultrafast cooling device of rod hot rolling production line, comprise that at least one cooler, at least one main valve, at least one water main, cooler cabinet shell, stand and at least one pair of are fixed on the mobile wheel of stand bottom, is characterized in that:
(1) cooler is formed by connecting by clamping screw or hickey by inlet oviduct, delivery channel, body and catheter hub, is provided with between inlet oviduct and the delivery channel by bilaterally adjustable gap and forms the water spray ring;
(2) to settle the integral body of inlet oviduct and outlet sleeve on central shaft be a cavity to the cooler body, is provided with the water inlet that is connected with high-pressure hydraulic pump by water main and main valve bottom it;
(3) stand top is originally external except that being fixed with at least one cooler, and both sides also are separately installed with bypass roller-way, retaining mechanism and move the oil cylinder of wheel transverse translation as the driving stand.
Ultrafast cooling device of the present invention is with the supporting use of continuous hot-rolling mill, the front end inlet oviduct of cooling device and continuous hot-rolling mill finished product hole exits connect during arrangement, behind wire rod and rod hot rolling, enter oviduct, High-Pressure Water by water spray ring in the cooler from around to spray to finishing temperature be steel finished surface about 1050 ℃, make steel be cooled to 545～720 ℃ with cooling velocity greater than 700 ℃/second in very short time (1 second of less than), thereby having controlled austenite crystal growth in the steel and having made it change grain size rapidly into is ferrite/pearlitic structrure of 11～12 grades, reaches the purpose of utilizing heat treatment to improve wire rod and rod mechanical performance.
When not needing to adopt supper-fast cooling processing technology when other model steel of hot mill rolling, it is traversing with stand to start oil cylinder.Owing to also be mounted with the bypass roller-way on the stand, the steel behind the hot continuous rolling can enter next process by the bypass roller-way at this moment, can not have influence on the ordinary production of other kind steel.
Quickly cooling device of the present invention with greater than the pressure of the 0.5～1.4MPa water spray ring by cooler in the past backward (promptly along the reinforcing bar direction of advance) spray to rebar surface, make reinforcing bar be able to quick cooling.After preventing that this High-Pressure Water from penetrating the cooler catheter hub, make the workshop that " floods " take place, Ultrafast cooling device of the present invention has also designed a kind of hydrophone of oppositely pouncing on, its structure is similar to cooler, and dock with cooler, the water outlet direction of its water spray ring is opposite with cooler, with the contra-injection current of uniform pressure with the forward injection water of cooler " counteracting " mutually, in the cooler sequence of serial connection, install several interspersedly and oppositely pounce on hydrophone and just can prevent that water flow jet is far away excessively like this.When a cooler butt joint of oppositely pouncing on the same forward of hydrophone, because there is cabinet shell the outside, the shell below is equipped with outlet pipe, and is with it that cooled current are in addition recycling again by high-pressure hydraulic pump.
Ultrafast cooling device of the present invention is in order to be suitable for the requirement that multi-thread cutting is rolled, its cooler and oppositely to pounce on hydrophone be to embark on journey and be fixed on the stand side by side, there is cabinet shell the outside, cooler and when oppositely pouncing on hydrophone and in delegation, docking as previously mentioned, when both embark on journey serial connection, can be one and oppositely pounce on same cooler butt joint of hydrophone; Also can be one and oppositely pounce on hydrophone with the butt joint of the cooler more than two or two.The end that head end promptly connects with the hot-rolling mill product outlet in delegation fixedly is a cooler, and end then fixedly is oppositely to pounce on hydrophone.What oppositely pounce in the hydrophone to be sprayed is High-Pressure Water; Also can be pressure-air, but terminal oppositely pouncing on to spray in the hydrophone be high pressure air flow.The High-Pressure Water that is sprayed in above-mentioned its pressure of High-Pressure Water air and the cooler equates, and the pressure that pressure-air flows is usually greater than 0.3MPa.
Its structure of Ultrafast cooling device of the present invention has following characteristics:
(1) cooler and oppositely to pounce on hydrophone be that detachable type divides body structure, it can be assembled and conversion according to the trade mark, specification and the specification requirement of steel, and is easy to use;
(2) cooler and oppositely pounce in the hydrophone water spray ring and adopt the adjustable gap structure both can have been regulated easily to satisfy different operation technique requirements; Be difficult for for the foreign material in the water stop up easy access again;
(3) stand can be undertaken traversingly by hydraulic oil cylinder driving, and convenient online adjustment can be satisfied the rolling various cooling requirements of one-strand roller, two-wire cutting, three-line syncopate and four-line syncopate;
(4) cooler adopts the circulation type water spraying structure, makes the steel cooling evenly, can eliminate flexural deformation behind the cold bed on the steel;
(5) cooler with oppositely pounce on hydrophone and be equipped with simple load and unload catheter hub, can eliminate the problem of short specification steel plugging;
(6) every cooling and the corresponding hydraulic pressure of oppositely pouncing on hydrophone can be regulated separately, although cool time is short, but still the strong cold differentiation of the strong cold-peace back segment of leading portion can be arranged, and guarantee to regulate within the specific limits the strong flexor ratio of steel.
Its total length of device of the present invention is not more than 13m, and each cooler length is about 1.2m.Adopt recirculated cooling water during use, water temperature is not higher than 40 ℃, and the flow of cooling water is greater than 500m usually
3/ hour.
Adopt the enforcement high strength ribbed reinforced bar that Ultrafast cooling device of the present invention can be successful to roll the supper-fast novel technique for cooling in back, can reach: (1) rolls out GB HRB335 number Ribbed Bar with straight carbon steel; (2) shut out the Ribbed Bar of GB HRB400, day mark SD390 and English mark Gr460 number with the 20MnSi steel; (3) shut out GB HRB500 number Ribbed Bar with the 20Mn, the 20MnSi steel that add microalloy V, Nb and Ti.Consider of great demand and present development the resource bottleneck predicament that steel and iron industry suffered from of China's building trade, obviously implement the present invention and will create huge social benefit and economic benefit hot rolled ribbed steel bar.
Description of drawings
Fig. 1 and Fig. 2 are respectively the floor plan of Ultrafast cooling device structural representation of the present invention and cooling device; 1 bypass roller-way among the figure; 2 retaining mechanisms; 3 move wheel; 4 coolers, 5 stands, 6 main valves, 7 water mains, 8 oil cylinders.
Fig. 3 is the structure chart of cooler, 9 inlet oviducts among the figure, and 10 cooler bodies, 11 delivery channels, 9 and 11 joints are clearance-type water spray ring, 12 catheter hubs, 13 clamping screws.
Fig. 4 is for oppositely pouncing on the water heater structure schematic diagram, and 14 pounce on the hydrophone conduit among the figure, and 15 pounce on the hydrophone body, 16 clamping screws.
The specific embodiment
Below in conjunction with specific embodiment wire rod of the present invention and rod hot rolling production line structure and the technical characterictic with Ultrafast cooling device is further described and replenishes.
How the structure of Ultrafast cooling device of the present invention of taking it as a whole earlier determines its specification and layout at concrete production technology yet the present invention is discussed respectively when using.
Ultrafast cooling device of the present invention can satisfy the rolling cooling requirement of one-strand roller, two-wire cutting, three-line syncopate and four-line syncopate.Cooling device is observed as shown in Figure 1 from end cross, and 4 is cooler arranged side by side four groups among Fig. 1; It is vertically arranged as shown in Figure 2 from overhead view, vertically is arranged with three of the casings of cooler as can be seen.The branch four lines is settled four groups of coolers in each casing.Usually the front is that two coolers that are installed in series connect one thereafter and oppositely pounce on hydrophone; Perhaps be installed in series cooler more than two of front is installed one again and is oppositely pounced on hydrophone.A cooler can be installed oppositely if oppositely pounce on hydrophone yet, only need remove its catheter hub, so can suppress splashing of injection water yet.The cabinet shell below of cooler is fixed by bolts on the stand 5, and there are main valve 6 and water main 7 in the casing below and are connected on the high-pressure hydraulic pump.The stand top also is equipped with bypass roller-way 1, and its below one side has retaining mechanism 2, opposite side that oil cylinder 8 is arranged, and integral body is seated on the track of mill by moving wheel 3.
The structure of cooler as shown in Figure 3, it is made up of inlet oviduct 9 and delivery channel 11 and catheter hub 12, inlet oviduct 9 and delivery channel 11 usefulness clamping screws 13 are consolidated on cooler body 10.Catheter hub 12 and delivery channel 11 then are to be fixed as one by hickey.Leave adjustable gap in the middle of inlet oviduct 9 and the delivery channel 11, the direction that its shape is advanced from reinforcing bar is observed and is the taper of being with the slope.Because cooler body 10 is a cavity, its underpart connects high-pressure water pipe, and it is with being captive closure between oviduct root and the conduit.So the time, the gap just constitutes a water spray ring, and its angled directive of current of spraying and the reinforcing bar consistent direction of advancing.The pressure of High-Pressure Water is generally 0.5～1.4MPa, and adjustable in pressure, spray to the hot-rolled reinforced bar surface on four sides with such current direction, make reinforcing bar in less than 1 second, just can be cooled to 545～720 ℃, thereby realize the supper-fast novel technique for cooling after hot-rolled reinforced bar rolls.
The structure of oppositely pouncing on hydrophone as shown in Figure 4, it is by pouncing on hydrophone conduit 14 and pouncing on hydrophone body 15 usefulness clamping screws 16 and fixedly form.The body bottom has water inlet to be connected on high-pressure hydraulic pump or the aerostatic press by valve and pipeline.And leave adjustable spacer ring between body and the conduit, when High-Pressure Water or air-flow enter pounce in the hydrophone body after, just can spray from gap ring high speed.Like this, in the time will pouncing on hydrophone,, can cancel each other, thereby effectively play " pressing down spray " and prevent the effect that the cooler outlet current splash because both water (flow) directions are opposite with the cooler reversal connection.
Embodiment 1: adopt three-strand splitting rolling to produce the HRB335 Ribbed Bar of Φ 12mm
At the requirement of reinforcing bar Technology for Heating Processing, whole cooling device is determined to be made of three groups of cooler casings arranged side by side, in series settle three forward coolers and one oppositely to pounce on hydrophone in the casing in regular turn.Cooler is Φ 36mm with the internal diameter of pouncing on hydrophone, long 1.2 meters of each cooler; Pounce on long 0.4 meter of hydrophone; Spacing is 0.2 meter between the two tanks, and the length of whole cooling arrangement is about 12.8 meters.Every cooler in the cooling device is controlled by the high pressure water valve that opens and closes separately separately with the water system of pouncing on hydrophone, and they can individually regulate and open and close by technological requirement.
HRB335 Ribbed Bar in that certain factory Ultrafast cooling device of the present invention on probation is produced Φ 12mm adopts the three-strand splitting rolling mode to enable 18 full continuous-rollings, and wherein the roughing unit is 6; 6 of middle milling train groups; 6 of mm finishing mill unit, every rolling 1 passage.Blank is the 150mm square billet, and its material adopts straight carbon steel, and chemical composition of steel is C0.18～0.23wt%, Si0.4wt%, P and S content＜0.045wt%, Fe surplus.Start rolling temperature is 1050～1100 ℃, through roughing, in roll with finish rolling after, roll body in the temperature in finishing mill exit more than 1020 ℃.
When this rolled piece is carried out supper-fast cooling, the cooling device stand is adjusted with oil cylinder, make three groups of cooling device cooler inlet oviducts align the milling train outlet opening.Each bar roll line only need be enabled 4 coolers (three of first section casings, in second section casing one), oppositely pounce on 3 of hydrophones (promptly three sections interior hydrophones of pouncing on of casing are all opened).Hydraulic pressure is transferred to 0.5MPa, 30 ℃ of coolant water temperatures, and the mill speed of finished product rolled piece (reinforcing bar) is 12.5m/ second, cooling device exit reinforcing bar temperature is 720 ℃.Be about 0.4 second actual cool time.
Reinforcing bar arrives cold bed after coming out from cooling device, and the cooling procedure on cold bed is identical with common process.
Every performance indications to above-mentioned Ribbed Bar under room temperature state are tested, and the result shows that every performance indications of product satisfy the requirement of State Standard of the People's Republic of China GB1499-1998 " armored concrete hot rolled ribbed steel bar " to the appropriate level reinforcing bar comprehensively.
According to the process of thermal treatment requirement of above-mentioned reinforcing bar, adopt the cooling device of forming by one group cooler casing, be divided into four sections, each section is oppositely pounced on hydrophone by two coolers and one and is connected in series and forms.Cooler and pounce on hydrophone internal diameter Φ 48mm.Every long 1.2m of cooler, pounce on the long 0.4m of hydrophone, spacing is 0.2m between the two tanks, and integral body is about 12.8m.Every cooler and oppositely pounce on hydrophone and all can open and close and regulate hydraulic pressure separately.
When producing the Ribbed Bar of HRB400 of Φ 25mm, adopt 14 fully continuous type milling trains, wherein 6 of roughing units, 6 of middle milling train groups, 2 of finishing mills, every rolling 1 passage, blank is the 150mm square billet, material is the 20MnSi steel.Determine that start rolling temperature is 1100 ℃, through roughing, in roll and finish rolling, be 1050 ℃ in exit reinforcing bar temperature.
When this rolled piece is carried out supper-fast cooling processing, the cooler oviduct is aligned the milling train outlet opening.Open four sections totally seven coolers and three oppositely pounce on hydrophone, what add last inject high pressure air stream oppositely pounces on hydrophone (can be described as the gas flow purging device), cold water hydraulic pressure transfers to 1.4MPa, the air pressure of high pressure draught transfers to 0.6MPa, the cooling water water temperature is 25 ℃.The mill speed of finished product rolled piece is 14.5 meter per seconds.Reinforcing bar is 650 ℃ from cooling device exit temperature.Be 0.8 second actual cool time.
Rolled piece the surface occurs and returns thermal phenomenon after arriving cold bed, and temperature reduces gradually subsequently, until the cool to room temperature state.
At room temperature every performance indications of Ribbed Bar are tested, its percentage elongation is 22～27%, yield strength is 430～480MPa, and tensile strength is 580～640MPa, and strong flexor ratio is 1.31～1.40, crooked its surperficial flawless of check.The result shows: every performance indications of this product satisfy the performance requirement of GB GB1499-1998 " armored concrete hot rolled ribbed steel bar " to HRB400 trade mark reinforcing bar comprehensively.
By the requirement of above-mentioned reinforcing bar Technology for Heating Processing, in conjunction with the actual conditions of workshop, whole cooling device is defined as forming with two groups of cooler casings arranged side by side, and each group cooler casing constitutes by three sections again.Be connected in series three coolers and one in first section in regular turn and pounce on hydrophone; Two coolers of each forward series connection are connected in series one again and oppositely pounce on hydrophone in second and third section.Cooler and pounce on hydrophone internal diameter Φ 36mm, long 1 meter of each cooler is pounced on long 0.4 meter of hydrophone, is spaced apart 0.4 meter between the two tanks, and length overall is about 9.5 meters.Every cooler and pounce on hydrophone and all can open and close separately, the pressure of its current or air stream also can be regulated separately by technological requirement.
Adopting chemical composition is C 0.22～0.24wt%, Si0.5～0.8wt%, Mn1.3～1.5wt%, P and S content＜0.040wt%, V0.05～0.06wt%, the 20MnSiV steel of Fe surplus is made raw material, adopt the fully continuous type milling train, totally 16, wherein 6 of roughing units, 6 of middle milling train groups and mm finishing mill unit are 4, rolling 1 passage of every rolling mill.Blank is the 170mm square billet, and start rolling temperature is 1070 ℃, and through rolling, the rolled piece in the end temperature in one finish rolling exit is 1050 ℃.
The inlet oviduct of Ultrafast cooling device is aligned the finishing mill exit, and each bar roll line has 7 coolers, only need enable 4 coolers and 3 during use and pounce on hydrophone, and the mill speed of finished product rolled piece is 14.0 meter per seconds, and cooling water hydraulic pressure is 1.2MPa.Rolled piece (reinforcing bar) passes through cooling device with 0.5 second actual cool time, and temperature is reduced to 545 ℃, and its cooling velocity has realized the supper-fast process for cooling of rolled piece greater than 800 ℃/second.
Rolled piece arrives cold bed, and temperature core is higher because surface temperature is relatively low, the surface occurs to return thermal phenomenon, and hot temperature is returned about 826 ℃ in the surface.Rolled piece moves on cold bed subsequently, and temperature reduces gradually, until the cool to room temperature state.
Every performance indications to Ribbed Bar under room temperature state are tested, and its percentage elongation is 20～24%, and yield strength is 525～535MPa, and tensile strength is 645～660MPa, and strong flexor ratio is 1.28～1.35, crooked its surperficial flawless of check.The result shows that every performance indications of product satisfy the performance requirement of standard GB 1499-1998 " armored concrete hot rolled ribbed steel bar " to HRB500 trade mark reinforcing bar comprehensively.
Claims (9)
1. wire rod and rod hot rolling production line Ultrafast cooling device, comprise that at least one cooler, at least one main valve, at least one water main, high-pressure hydraulic pump, cooler cabinet shell, stand and at least one pair of are fixed on the mobile wheel of stand bottom, is characterized in that:
(1) cooler is formed by connecting by clamping screw or hickey by inlet oviduct, delivery channel, body and catheter hub, is provided with between inlet oviduct and the delivery channel by bilaterally adjustable gap and forms the water spray ring;
(2) to settle the integral body of inlet oviduct and outlet sleeve on central shaft be a cavity to the cooler body, is provided with the water inlet that is connected with high-pressure hydraulic pump by water main and main valve bottom it;
(3) stand top is originally external except that being fixed with at least one cooler, and both sides also are separately installed with bypass roller-way, retaining mechanism and move the oil cylinder of wheel transverse translation as the driving stand;
(4) be equipped with in addition by body, pounce on the hydrophone conduit and by between the two gap form pounce on that hydrophone spray ring constitutes oppositely pounce on hydrophone, oppositely pounce on hydrophone and dock with cooler.
2. by described wire rod of claim 1 and rod hot rolling production line Ultrafast cooling device, it is characterized in that said cooler is to embark on journey to be connected in series and to be fixed on side by side on the stand, the inlet oviduct of its first cooler docks with hot continuous rolling finished product hole exits.
3. by described wire rod of claim 2 and rod hot rolling production line Ultrafast cooling device, when it is characterized in that said cooler is embarked on journey arrangement, the inlet oviduct of a back cooler is end to end with the catheter hub of last cooler.
4. by claim 2 or 3 described wire rods and rod hot rolling production line Ultrafast cooling device, it is characterized in that said cooler embarks on journey when arranging, when the cooler more than two be connected in series, its back can dock one in order to but spray oppositely pounce on hydrophone.
5. by described wire rod of claim 4 and rod hot rolling production line Ultrafast cooling device, it is characterized in that said cooler and oppositely pouncing on hydrophone is to embark on journey and be fixed on side by side on the stand, and the inlet oviduct of its first cooler docks with continuous hot-rolling mill finished product hole exits.
6. by described wire rod of claim 1 and rod hot rolling production line Ultrafast cooling device, it is characterized in that cooler and oppositely pounce on hydrophone in delegation, docking.
7. by described wire rod of claim 5 and rod hot rolling production line Ultrafast cooling device, when it is characterized in that said cooler and oppositely pouncing on hydrophone embarking on journey serial connection, oppositely pounce on hydrophone with two or many coolers butt joint of serial connection mutually for one, head end fixedly is a cooler and end fixedly is oppositely to pounce on hydrophone in delegation.
8. by described wire rod of claim 1 and rod hot rolling production line Ultrafast cooling device, what it is characterized in that spraying in the said cooler is High-Pressure Water, and oppositely pounce on spray in the hydrophone for High-Pressure Water or high pressure air flow, but terminal oppositely to pounce on what spray in the hydrophone be high pressure air flow.
9. by described wire rod of claim 8 and rod hot rolling production line Ultrafast cooling device, it is characterized in that said High-Pressure Water, its pressure is 0.5～1.4MPa, and the pressure-air flowing pressure is greater than 0.5MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100468224A CN100376336C (en) | 2005-07-07 | 2005-07-07 | Ultrafast cooling device for wire and rod hot rolling production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100468224A CN100376336C (en) | 2005-07-07 | 2005-07-07 | Ultrafast cooling device for wire and rod hot rolling production line |
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| Publication Number | Publication Date |
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| CN1718769A CN1718769A (en) | 2006-01-11 |
| CN100376336C true CN100376336C (en) | 2008-03-26 |
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| CNB2005100468224A Expired - Fee Related CN100376336C (en) | 2005-07-07 | 2005-07-07 | Ultrafast cooling device for wire and rod hot rolling production line |
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Cited By (1)
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| CN101947564A (en) * | 2010-09-01 | 2011-01-19 | 莱芜钢铁股份有限公司 | Combined type water-passing cooler |
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| DE102007046279A1 (en) * | 2007-09-27 | 2009-04-09 | Siemens Ag | Operating method for a cooling line with centralized detection of valve characteristics and objects corresponding thereto |
| CN100589894C (en) * | 2008-05-09 | 2010-02-17 | 太原市通泽成套设备有限公司 | Forced cooling device of round piece |
| CN101367094B (en) * | 2008-08-22 | 2011-02-02 | 马鞍山钢铁股份有限公司 | Combined control rolling process for hot-rolled steel bar with rib |
| ITMI20110848A1 (en) * | 2011-05-13 | 2012-11-14 | Danieli Off Mecc | APPARATUS FOR HEAT TREATMENT IN LINE OF METALLURGICAL SEMI-FINISHED PRODUCTS |
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| CN106984658B (en) * | 2017-03-31 | 2018-10-26 | 中冶南方工程技术有限公司 | DEVICE FOR BAR AND WIRE HOT ROLLING production line cooling device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4786338A (en) * | 1985-10-31 | 1988-11-22 | Norio Anzawa | Method for cooling rolled steels |
| CN2187987Y (en) * | 1992-04-20 | 1995-01-25 | 首都钢铁公司 | Ring jet type cooling device |
| CN2380318Y (en) * | 1997-01-31 | 2000-05-31 | 重庆钢铁高等专科学校 | Hydraulic turning-over guiding steel mechanical arm |
| CN2524851Y (en) * | 2001-08-22 | 2002-12-11 | 任吉堂 | Strong through water cooler for hot rolling rod line material production line |
-
2005
- 2005-07-07 CN CNB2005100468224A patent/CN100376336C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4786338A (en) * | 1985-10-31 | 1988-11-22 | Norio Anzawa | Method for cooling rolled steels |
| CN2187987Y (en) * | 1992-04-20 | 1995-01-25 | 首都钢铁公司 | Ring jet type cooling device |
| CN2380318Y (en) * | 1997-01-31 | 2000-05-31 | 重庆钢铁高等专科学校 | Hydraulic turning-over guiding steel mechanical arm |
| CN2524851Y (en) * | 2001-08-22 | 2002-12-11 | 任吉堂 | Strong through water cooler for hot rolling rod line material production line |
Non-Patent Citations (1)
| Title |
|---|
| 几种线（棒）材冷却器的应用. 焦希臣.冶金设备，第2期. 1982 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947564A (en) * | 2010-09-01 | 2011-01-19 | 莱芜钢铁股份有限公司 | Combined type water-passing cooler |
| CN101947564B (en) * | 2010-09-01 | 2012-11-21 | 山东钢铁股份有限公司 | Combined type water-passing cooler |
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| Publication number | Publication date |
|---|---|
| CN1718769A (en) | 2006-01-11 |
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