WO2006042601A1 - Verfahren und vorrichtung zum abschrecken von flachprodukten aus stahl - Google Patents
Verfahren und vorrichtung zum abschrecken von flachprodukten aus stahl Download PDFInfo
- Publication number
- WO2006042601A1 WO2006042601A1 PCT/EP2005/010015 EP2005010015W WO2006042601A1 WO 2006042601 A1 WO2006042601 A1 WO 2006042601A1 EP 2005010015 W EP2005010015 W EP 2005010015W WO 2006042601 A1 WO2006042601 A1 WO 2006042601A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- channel
- water
- flat products
- suction
- nozzle
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
-
- 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
- B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
-
- 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
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
-
- 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
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0278—Cleaning devices removing liquids
- B21B45/0281—Cleaning devices removing liquids removing coolants
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
Definitions
- the invention relates to a method and apparatus for quenching steel flat products.
- the main field of application of the invention is the quenching of sheets of carbon steel. Accordingly, sheets will be referred to in the following description without limitation.
- water is sprayed onto the sheets. The water then flows after the cooling process laterally over the sheet edges.
- the invention has for its object to improve the discharge of water. To achieve this object, the invention provides a method for quenching flat products made of steel, wherein
- the flat products are passed in a continuous manner along a roller conveyor with upper and lower rollers,
- the invention is based on the finding that a certain "channel effect" results between adjacent rollers, which leads to a water haze on the sheet metal surface.
- the "channel effect” may also result between a nozzle box and the first downstream upper roller, which is often a spiral roller.
- the Wasserüberhö ⁇ Hung has a negative influence on the uniform Abküh ⁇ treatment of the sheets over the sheet width and also over the sheet length. It contributes to complicating the uniform flow of the water over the sheet side edges. This is especially true when it comes to very wide sheets.
- the "coagulation effect” depends on the amount of water per unit of time and per square meter of sheet metal surface.
- the invention improves the drainage by Absau ⁇ conditions of water increase and thus contributes to ademandmä ⁇ sessment of the cooling of the sheets over the sheet width and also over the sheet length at.
- the suction of the water is strom ⁇ on the first, downstream of the injection point located upper roller.
- Wasserüberh ⁇ hung strongest since the water had little opportunity to previously drain laterally on the sheet side edges.
- the extracted water based on the direction of the flat products, discharged on both sides.
- the invention also provides a device for quenching flat products made of steel
- At least one above the roller conveyor transversely to this arranged suction for sucking water current on an associated upper roller.
- the invention is preferably applied to the first water quenching device in a continuous flow quench for cooling sheets of carbon steel.
- the nozzle device is preferably a high-pressure slot nozzle with a subsequent spiral roller. Accordingly, it is proposed in development of the invention to arrange the Absaug ⁇ device upstream of a spiral roll.
- the spiral roll serves to convey the water laterally to the sheet side edges. The water extraction according to the invention thus supports the drainage after the cooling process.
- the high-pressure slot nozzle can be followed by further high-pressure nozzle rods with spiral rollers arranged therebetween.
- These high-pressure nozzle sticks likewise constitute nozzle devices in the sense of the invention, in front of whose downstream rollers, optionally spiral rollers, a water suction can take place.
- the suction device has a first channel which receives the water to be sucked off and opens at the top in a second channel, the first channel having a constant cross section over the width of the flat products at the top and wherein the second channel forms two sections, each of which widens to the side from the center of the flat products and is attached to an associated suction pump.
- the first channel effects a very uniform suction of the water increase over the width of the surface, and the second channel ensures that the extracted water can be discharged to both sides.
- each section of the second channel is widened in such a way that its cross section at each point is at least as great as the cross-sectional total of the first channel calculated from the center of the flat products up to this point. In this way, it is ensured with certainty that no backflow can occur at the transition between the two channels.
- the width of the first channel can be adapted to the width of the flat products. This offers the possibility of applying the device according to the invention to sheets of different widths.
- the width of the first channel should not exceed the plate width, since otherwise air is sucked in, which at least impairs the water intake.
- the first channel In order to adapt the first channel, it is possible to design its side walls to be laterally displaceable while being sealed relative to the second channel. Alternatively, the first channel can be subdivided into sections which can be switched off separately.
- the first channel is preferably designed as a slot channel whose height is not more than ten times the slot thickness. It has been found that reliable, stable extraction conditions can be achieved in this way.
- the first channel is preferably formed between a nozzle key of the nozzle device and an associated wall.
- the suction pumps it is possible to design the suction pumps as self-priming pumps. However, a faster start can be achieved by assigning the vacuum pumps a vacuum device.
- the suction pumps are preferably connected to a downstream nozzle device.
- the latter works in the Nieder ⁇ druckabschreck Scheme the Quette.
- the water suction according to the invention thus brings about as an additional advantage a reduction in the total water consumption of the quill.
- Figure 1 shows a schematic representation of a vertical longitudinal section through a device according to the invention
- FIG. 2 shows the top view of the device according to FIG. 1.
- a roller conveyor is provided which has lower rollers 1 and upper rollers 2.
- To the upper rollers ge heard further includes a spiral roller 3.
- the roller conveyor is used, flat products 4, in the present case sheets of carbon steel, which are quenched with the device according to the invention and the inventive method by a
- the inventive device comprises a above the roller conveyor and arranged transversely to this nozzle device 5 in the form of a Hochdruckschlitzdüse, with the water on the
- Sheet metal is sprayed on. After the cooling process, the water should drain off on both sides via sheet side edges. This Gear is supported by the spiral roller 3. Nevertheless, there is a water increase on the surface of the sheet metal between the nozzle box 6 of the high-pressure slot nozzle and the spiral roller 3 due to a "channeling effect". This is sucked through a first channel 7, which opens into a second channel 8. From FIG. 2, it can be seen that the second channel 8 consists of two sections 9 and 10 which each extend from the center of the sheet to the side and are connected to an associated pump. The water overshoot is so upwards, in the present case vertically upwards, sucked off and then discharged to the two sides.
- the two sections 9 and 10 of the second channel 8 extend outwards in order to discharge the water supplied by the first channel 7, the total amount of which increases toward the outside, without backflow.
- the first channel 7 is formed between the nozzle box 6 and a wall 12. It represents a slot channel of constant cross-section, the suction opening of which lies so close above the sheet that it dives reliably into the water increase.
- the first channel 7 is adapted in its width to the sheet metal width in order to avoid lateral air intake.
- the width of the first channel 7 is reduced, for example by moving the channel side walls (sealing the laterally free areas of the second channel 8) or by switching off individual chambers, in which the first channel is ge ⁇ if necessary divided.
- the Düsenströ- interferes with the first channel 7 can also arrange downstream of the Spi ⁇ ralrolle 3.
- the suction pumps 11 may be associated with a vacuum device.
- the water delivered by the suction pumps 11 can be redirected to the sheet in the low-pressure quenching region of the quette.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007537136A JP2008516777A (ja) | 2004-10-19 | 2005-09-16 | 平板状鋼製品の冷却方法及び冷却装置 |
US11/664,444 US20080277035A1 (en) | 2004-10-19 | 2005-09-16 | Method and Device for Quenching Flat Steel Products |
CN2005800337298A CN101035913B (zh) | 2004-10-19 | 2005-09-16 | 用于扁钢产品的淬火方法和装置 |
EP05791825A EP1805332A1 (de) | 2004-10-19 | 2005-09-16 | Verfahren und vorrichtung zum abschrecken von flachprodukten aus stahl |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004051047A DE102004051047A1 (de) | 2004-10-19 | 2004-10-19 | Verfahren und Vorrichtung zum Abschrecken von Flachprodukten aus Stahl |
DE102004051047.4 | 2004-10-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006042601A1 true WO2006042601A1 (de) | 2006-04-27 |
Family
ID=35717592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/010015 WO2006042601A1 (de) | 2004-10-19 | 2005-09-16 | Verfahren und vorrichtung zum abschrecken von flachprodukten aus stahl |
Country Status (8)
Country | Link |
---|---|
US (1) | US20080277035A1 (de) |
EP (1) | EP1805332A1 (de) |
JP (1) | JP2008516777A (de) |
KR (1) | KR100916192B1 (de) |
CN (1) | CN101035913B (de) |
DE (1) | DE102004051047A1 (de) |
RU (1) | RU2007118673A (de) |
WO (1) | WO2006042601A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011114150B4 (de) * | 2010-09-23 | 2015-06-11 | Kocks Technik Gmbh & Co. Kg | Walzanlage für ein Rohr und Kühlvorrichtung für ein Rohr |
CN102049357B (zh) * | 2010-12-23 | 2012-07-25 | 中冶京诚工程技术有限公司 | 缝隙式喷头冷却装置 |
CN104313273B (zh) * | 2014-10-08 | 2016-09-14 | 中冶赛迪工程技术股份有限公司 | 一种自吸式喷嘴 |
CN110184431B (zh) * | 2018-05-21 | 2024-05-24 | 江阴兴澄特种钢铁有限公司 | 避免钢板表面产生纵向淬火条印的淬火机辊道布置结构 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3793867A (en) * | 1971-09-22 | 1974-02-26 | Drever Co | Apparatus for continuously quenching a heated metal plate |
DE3313024A1 (de) * | 1983-04-12 | 1984-10-18 | Babcock-BSH AG vormals Büttner-Schilde-Haas AG, 4150 Krefeld | Verfahren und vorrichtung zum abschrecken von durchlaufenden stahlblechen, insbesondere von grob- oder mittelblechen, unter gleichzeitigem kontrolliertem richten |
JPS6340611A (ja) * | 1986-08-04 | 1988-02-22 | Kawasaki Steel Corp | 高温鋼板の冷却装置 |
JPS63168215A (ja) * | 1986-12-29 | 1988-07-12 | Ishikawajima Harima Heavy Ind Co Ltd | 金属板の冷却装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4477287A (en) * | 1983-02-08 | 1984-10-16 | Kaiser Aluminum & Chemical Corporation | Liquid removal device |
ES2077284T3 (es) * | 1991-05-17 | 1995-11-16 | Sundwiger Eisen Maschinen | Dispositivo para eliminar liquido de la superficie de un fleje transportado desde una maquina de mecanizacion de flejes. |
CN2286755Y (zh) * | 1996-03-14 | 1998-07-29 | 马玉璞 | 一种辊式余热汽水冷却和淬火装置 |
CN2303697Y (zh) * | 1996-04-18 | 1999-01-13 | 陈增琪 | 半闭路循环式喷水冷却结晶器 |
DE19850739A1 (de) * | 1998-11-04 | 2000-05-11 | Schloemann Siemag Ag | Verfahren und Vorrichtung zum Kühlen von walzwarmem Walzgut, insbesondere Warmbreitband |
DE20114136U1 (de) * | 2001-08-27 | 2001-11-29 | Loi Thermprocess Gmbh | Vorrichtung zum Kühlen von Material durch Erzeugen eines Flachstrahls |
AUPR949801A0 (en) * | 2001-12-14 | 2002-01-24 | Industrial Automation Services Pty Ltd | Process control method and apparatus |
-
2004
- 2004-10-19 DE DE102004051047A patent/DE102004051047A1/de not_active Withdrawn
-
2005
- 2005-09-16 JP JP2007537136A patent/JP2008516777A/ja active Pending
- 2005-09-16 KR KR1020077008814A patent/KR100916192B1/ko not_active IP Right Cessation
- 2005-09-16 WO PCT/EP2005/010015 patent/WO2006042601A1/de active Application Filing
- 2005-09-16 EP EP05791825A patent/EP1805332A1/de not_active Withdrawn
- 2005-09-16 CN CN2005800337298A patent/CN101035913B/zh not_active Expired - Fee Related
- 2005-09-16 RU RU2007118673/02A patent/RU2007118673A/ru not_active Application Discontinuation
- 2005-09-16 US US11/664,444 patent/US20080277035A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3793867A (en) * | 1971-09-22 | 1974-02-26 | Drever Co | Apparatus for continuously quenching a heated metal plate |
DE3313024A1 (de) * | 1983-04-12 | 1984-10-18 | Babcock-BSH AG vormals Büttner-Schilde-Haas AG, 4150 Krefeld | Verfahren und vorrichtung zum abschrecken von durchlaufenden stahlblechen, insbesondere von grob- oder mittelblechen, unter gleichzeitigem kontrolliertem richten |
JPS6340611A (ja) * | 1986-08-04 | 1988-02-22 | Kawasaki Steel Corp | 高温鋼板の冷却装置 |
JPS63168215A (ja) * | 1986-12-29 | 1988-07-12 | Ishikawajima Harima Heavy Ind Co Ltd | 金属板の冷却装置 |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 012, no. 257 (M - 719) 20 July 1988 (1988-07-20) * |
PATENT ABSTRACTS OF JAPAN vol. 012, no. 434 (M - 764) 16 November 1988 (1988-11-16) * |
Also Published As
Publication number | Publication date |
---|---|
CN101035913A (zh) | 2007-09-12 |
DE102004051047A1 (de) | 2006-04-27 |
JP2008516777A (ja) | 2008-05-22 |
KR100916192B1 (ko) | 2009-09-08 |
US20080277035A1 (en) | 2008-11-13 |
RU2007118673A (ru) | 2008-11-27 |
KR20070068383A (ko) | 2007-06-29 |
EP1805332A1 (de) | 2007-07-11 |
CN101035913B (zh) | 2010-05-05 |
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