US3653425A - Method of removing coolant from metal surfaces - Google Patents

Method of removing coolant from metal surfaces Download PDF

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Publication number
US3653425A
US3653425A US59075A US3653425DA US3653425A US 3653425 A US3653425 A US 3653425A US 59075 A US59075 A US 59075A US 3653425D A US3653425D A US 3653425DA US 3653425 A US3653425 A US 3653425A
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United States
Prior art keywords
housing
billet
coolant
metal
water
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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.)
Expired - Lifetime
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US59075A
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English (en)
Inventor
Herbert E Elliott
Frank A Simons
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Dow Chemical Co
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Dow Chemical Co
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • B22D11/1248—Means for removing cooling agent from the surface of the cast stock

Definitions

  • Cl ..B22d 11/12 face which comprises a housing defining a chamber having an [58] Field Of Search ..l64/64, 82, 89, 253, 283; opening therein facing the moving metal surface; a flexible 15/302 394 contacting member attached to at least the leading edge of the housing opening, and preferably to both the leading and trail- [56] References cued ing edges of the housing opening, in contact with the metal UNITED STATES PATENTS surface; and suction means connected to the housing to evacuate the chamber.
  • Such apparatus can be used in a method of Ze1gler removing coolant from metal urfaces contacting the sup 2,837,791 6/1958 Tessmann ..l64/64 f i a fl ibl member and passing the Surface through 3 3,060,482 10/1962 Doyle ..15/306 A suction zone 3,189,929 6/1965 Koppehele. ....15/394 X 2,608,710 9/1952 Zaidan ..15/394 1 Claims, 3 Drawing Figures acuum Hum 0 Patented April 4, 1972 v INVENTORS v Herbs/7 E E///'off BY Frank/4.
  • the coolant is removed by either mechanical wipers or by air jets.
  • Mechanical wiping employs, for example, a piece of flexible rubber fitted tightly around the metal surface. The rubber wipes" the water off as the surface passes through.
  • the coolant is blown from the metal surface by gas jets assisted in some cases by baffles or deflectors to direct the gas streams and to assist in collecting the removed coolant.
  • An object of the present invention is to provide a relatively simple apparatus and method for effective, uniform coolant removal from moving metal surfaces even in the presence of considerable surface roughness.
  • the apparatus of the present invention comprises a housing, which defines a chamber, having an opening therein; a flexible contacting member attached to the leading edge of the housing opening; and suction means connected to the housing for evacuating the chamber.
  • a second flexible contacting member is attached to the trailing edge of the housing opening.
  • the housing When this apparatus'is employed to remove coolant from a moving metal surface, the housing is placed adjacent to the metal surface. It is positioned such that the opening is facing, i.e. directed toward, the moving metal surface and the contacting member is in contact with that surface.
  • the housing and the suction means define a suction or vacuum zone surrounding or adjacent to the metal surface.
  • the method of the present invention comprises contacting the metal surface with a flexible member, and then passing the metal surface through an adjacent suction zone to remove the coolant therefrom.
  • leading edge refers to that edge of the housing opening which the metal surface passes first.
  • trailing edge refers to that edge of the housing opening which the metal surface passes last.
  • FIG. 1 is the top view of one embodiment of the apparatus of the present invention.
  • FIG. 2 is a cross-section of FIG. 1 taken along line 2-2.
  • FIG. 3 is a diagram of the continuous casting operation employing one embodiment of the present invention.
  • the preferred apparatus comprises a housing defining a chamber surrounding the ingot with an opening facing the billet surface. Suction is applied to the housing chamber, causing a stream of air to flow into the opening. This air stream removes the cooling water from the billet surface and carries it into the chamber, from which it is removed and disposed of.
  • the device is fitted with a flexible member attached to the leading edge of the housing opening and extending toward the metal surface to make contact therewith to act as a sealing means.
  • a similar flexible member can be attached to the trailing edge of the housing opening also extending toward the metal surface to make contact therewith.
  • a housing generally noted as 1, is shown.
  • Such housing comprises top ring 2, bottom ring 3 and a perpendicular member 4, which connects the top and bottom rings around their outer peripheries.
  • a flexible contacting member e.g., brush 5
  • a second flexible contacting member e.g. brush 5' is attached to the bottom ring by a hold down ring 7 and bolts 8.
  • the housing 1 is connected to suction means (not shown), e.g., vacuum pump, by means of conduit 9.
  • the top ring is provided with a lip 10 and channel 11.
  • FIG. 3 is a drawing of a continuous casting operation employing the apparatus embodied in FIG. 1 and 2.
  • Molten metal is continuously cast into a billet 20 through a short, water cooled, open ended mold 21.
  • Water spray rings 22 cool the mold and the casting.
  • the water removal apparatus is positioned below the spray rings.
  • the housing 1 is suspended independently of the billet, e.g., by hanging it on a chain from the mold table, so that it is concentric with the metal billet.
  • the relationship of the billet diameter to the inside diameter of the brushes 5 and 5 is such that the brushes make contact with the billet surface, maintaining the housing in a centered position relative to the billet axis.
  • molten metal is cast into mold 21 where it begins to solidify.
  • the partly solidified billet passes through the mold 21 and the casting surface is further cooled by water spray from rings 22.
  • the wetted surface then contacts the upper brush 5 and passes into suction zone S. As air passes through this suction zone, it literally strips the water from the billet surface.
  • the contact of the billet surface with brush 5 is sufficiently tight to wipe some of the water from the surface.
  • the lip 10 on the top ring will then cause the water to pool up over the brush 5. This seals the upper edge of the housing opening promoting effective water removal with lower suction power.
  • the housing of the present apparatus is any device which defines a chamber, having an opening therein, which faces the moving billet surface, for example, a pipe or hollow ring with a slot on the inner circumference.
  • the housing may be of any shape convenient for fabrication or use, such as by using upper and lower plates having the centers cut out to allow passage of the billet, and spaced apart by a vertical wall.
  • the opening directed toward the billet surface need only be wide enough to permit passage of an air stream from the surrounding area, over the billet surface, and into the chamber.
  • the flexible contacting member can be made of any flexible, resilient material capable of withstanding the metal surface temperatures involved, and of such nature as to offer resistance to the flow of air and water into the chamber. Examples include sheet rubber or rubber-like materials.
  • a particularly useful configuration is a brush, having bristles made of natural or synthetic fibers, metal, or other suitable material.
  • the contacting member attached to the leading edge of the housing opening provide substantial resistance to the flow of air into the suction chamber from the space above the chamber.
  • a sheet of rubber or rubber-like material is used as the contacting member, it should fit fairly snugly around the billet surface. It is not necessary that it fit so snugly as to effectively remove all the water by a mechanical wiping action. Considerable leakage through this leading member is permissible, since the coolant that leaks through will be picked up by the air stream in the suction zone; but the presence of a wide gap between the contacting member and the billet surface will greatly increase the air flow required for complete water removal.
  • the density of packing of the bristles must be sufficient so that the brush will offer adequate resistance to air flow.
  • a commercial strip brush having uncrimped Tampico-type fiber bristles, trim length 2 inches, when formed into a circular shape with the bristle tips initially set to an 1 1 /2 in. inside diameter, gave effective wiping action with a minimum of air flow.
  • a flexible contacting member attached to the trailing edge of the housing opening can be used. If the trailing edge of the housing is only slightly larger in inside diameter than the diameter of the billet, eg an annular space not much greater than /8 in. between the billet and the suction chamber, water removal will be complete even at quite small air flow rates without use of a second flexible contacting member.
  • the use of a brush attached to the trailing edge as well as the leading edge of the housing opening makes it possible to keep all rigid parts of the device well back away from the billet surface, which allows the device to function in spite of very severe irregularity of the casting surface.
  • the flexible contacting member attached to the leading edge of the housing opening should preferably, although not necessarily, remove some water from the billet surface. It is further preferred to provide a guttering or channeling system, e.g. a lip on the top of the housing placed behind the contacting member (see FIG. 1 and 2). As the water is wiped from the surface, it thus pools up over the contacting member, further sealing the upper annulus from the through-passage of air. By thus sealing the upper annulus, the amount of suction necessary to completely remove the coolant is substantially reduced.
  • Another function of the flexible contacting member is to maintain the device in a centered position in relation to the billet.
  • the suction means is any means by which the air pressure is reduced in the suction chamber so as to cause air to flow in through the opening facing the billet surface, e.g. a vacuum pump.
  • EXAMPLE 1 A 12 in. diameter billet of AZ31B alloy (3 percent Al, 1 percent Zn, 0.4 percent Mn, bal-Mg) was cast at a melt temperature of l,300 F. in a copper mold, 12 in. long, starting with a slow casting speed and increasing casting speed by steps to 5.2 inches per minute. Water was applied to the mold through two water rings (7 gallons per minute and 8 gallons per minute was adequate). The mold cooling water then flowing onto the emerging billet. The upper edge of the housing of the present apparatus was located at a level 36 in. below the mold exit.
  • the housing was made by an upper plate and a lower plate spaced 1 in. apart by a vertical wall around the outer perimeter of the plates having a diameter of 18 inches.
  • Upper and lower plates had central holes 14 in. in diameter for passage of the 12 in. diameter billet.
  • the suction chamber defined thereby was connected by a 3 in. diameter hose to a vacuum vessel of ten gallon capacity, fitted with a drain and maintained at a pressure of 20-22 cm H O below atmospheric pressure. This was accomplished by using a 1 HP low pressure turbine-type blower as a vacuum generator.
  • Tampico fiber strip brushes, 2 in. trim length, uncrimped bristles were formed to a circular shape with bristles pointing inward. Bristle tips were initially set to an inside diameter of 11% in. diameter. One such brush was attached to the upper and one to the lower plate of the housing.
  • EXAMPLE 2 A 6% in. diameter billet of AM3O alloy (3 percent Al, 0.35 percent Zn, 0.4 percent Mn, bal-Mg) was cast at a melt temperature of 1,280 E in a copper mold 9 in. long starting with a slow casting speed and increasing the speed by steps to 20.5 inches per minute. Water was applied to the mold through two water rings, each at a flow rate of 5 gallons per minute, and to the emerging billet through two rings carrying a combined flow of 8 gallons per minute. The upper edge of the housing of the present apparatus was located at a level 3% in. below the mold exit. The housing was made by an upper plate and a lower plate spaced 1 in. apart by a vertical wall 18 in. diameter. Upper and lower plates had central holes 8% in.
  • the suction chamber was connected by a 3 in. diameter hose to a vacuum vessel of 10 gallons capacity fitted with a drain and partially evacuated by using a 1 HP turbine type low pressure blower as a vacuum generator.
  • Tampico fiber strip brushes 2 in. trim length, uncrimped bristles were formed to a circular shape with bristles pointed inward. Bristle tips were intially set to an inside diameter of 5% in.
  • One such brush was attached to the upper and one to the lower plate of the housing defining the suction chamber.
  • a method of continuously casting a metal billet which comprises:

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  • 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)
  • Cleaning In General (AREA)
  • Drying Of Solid Materials (AREA)
  • Continuous Casting (AREA)
US59075A 1970-07-29 1970-07-29 Method of removing coolant from metal surfaces Expired - Lifetime US3653425A (en)

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US5907570A 1970-07-29 1970-07-29

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CA (1) CA934110A (enrdf_load_stackoverflow)
DE (1) DE2136751A1 (enrdf_load_stackoverflow)
FR (1) FR2103329A5 (enrdf_load_stackoverflow)
GB (1) GB1362689A (enrdf_load_stackoverflow)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891024A (en) * 1973-06-13 1975-06-24 Noranda Mines Ltd Method for the continuous casting of metal ingots or strips
US4120455A (en) * 1976-01-23 1978-10-17 Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie Apparatus for cooling metal sections
JPS5416335A (en) * 1977-07-07 1979-02-06 Sumitomo Aluminium Smelting Co Continuous casting method of high silicon aluminum alloys
US4266983A (en) * 1979-03-12 1981-05-12 Courtaulds Limited Method of, and means for, reducing the liquid content of air-permeable material in tubular form
DE3036209A1 (de) * 1980-09-25 1982-05-06 Kaiser Aluminum & Chemical Corp., 94643 Oakland, Calif. Verfahren zum abfuehren von kuehlmittel von gussstuecken und abstreifvorrichtung fuer gussstuecke
US4391016A (en) * 1980-10-14 1983-07-05 Kabushiki Kaisha Kobe Seiko Sho Degreasing apparatus for elongated materials
US4483040A (en) * 1982-12-22 1984-11-20 International Business Machines Corporation In-line mask cleaning system
US4517699A (en) * 1984-04-19 1985-05-21 Deluxe Innovations, Inc. Paint roller cleaning apparatus
FR2565143A1 (fr) * 1984-06-01 1985-12-06 Maschf Augsburg Nuernberg Ag Procede pour refroidir localement des surfaces de pieces d'oeuvre faconnees par soudage, avant et/ou apres le point de soudure, au moyen d'un melange d'eau et d'air, et dispositif pour la mise en oeuvre de ce procede
US4781239A (en) * 1986-12-03 1988-11-01 Cegedur Societe De Transformation De L'aluminium Pechiney Process and apparatus for casting in a pit, without any explosive risk, of aluminum and its alloys, particularly with lithium
US4823431A (en) * 1987-06-01 1989-04-25 Carpenter Weda B Fan blade cleaning device
US5174829A (en) * 1989-05-17 1992-12-29 H. J. Heinz Company Limited Removing surface liquid from articles
US5235722A (en) * 1992-04-07 1993-08-17 Robert W. Lackey Corporation Vacuum fan duster
USD395102S (en) 1997-03-17 1998-06-09 Cika Christina L Vacuum nozzle for cleaning ceiling fan blades
US5765259A (en) * 1997-03-17 1998-06-16 Cika; Christina L. Vacuum nozzle for cleaning ceiling fan blades
WO2007048250A1 (en) * 2005-10-28 2007-05-03 Novelis Inc. Homogenization and heat-treatment of cast metals
CN101306463B (zh) * 2008-05-30 2010-06-09 苏州有色金属研究院有限公司 铸造超高强铝合金扁锭的非等高挡水装置及其应用方法
US20110139055A1 (en) * 2007-08-21 2011-06-16 Jan Erik Stokkeland Steerable paravane system for towed seismic streamer arrays
CN105414501A (zh) * 2015-12-19 2016-03-23 西南铝业（集团）有限责任公司 一种结晶器用刮水器
CN108436048A (zh) * 2018-03-27 2018-08-24 银邦金属复合材料股份有限公司 一种铝合金半连续铸造用刮水器及刮挡水的方法
CN110434289A (zh) * 2019-09-02 2019-11-12 南通华东油压科技有限公司 一种柱塞泵中间连接体铸件辅助冷却用砂箱装置及使用方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494149A1 (fr) * 1980-11-14 1982-05-21 Kaiser Aluminium Chem Corp Procede d'essuyage de la surface d'une billette de coulee continue pour en enlever l'agent refrigerant
DE3047624C2 (de) * 1980-12-17 1987-01-08 Naučno-proizvodstvennoe ob"edinenie Tulačermet, Tula Vorrichtung zum Wasserabfluß aus der Sekundärkühlzone einer Stranggießanlage

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608710A (en) * 1950-06-06 1952-09-02 Joseph P Zaidan Suction brush for cleaning venetian blinds
US2705353A (en) * 1952-04-04 1955-04-05 Kaiser Aluminium Chem Corp Method of continuous casting
GB759290A (en) * 1953-02-21 1956-10-17 Boehler & Co Ag Geb An improved process of cooling billets in continuous-casting plants
US2837791A (en) * 1955-02-04 1958-06-10 Ind Res And Dev Corp Method and apparatus for continuous casting
US2871534A (en) * 1956-04-20 1959-02-03 Wieland Werke Ag Method of continuous casting
US2955334A (en) * 1959-08-31 1960-10-11 Olin Mathieson Continuous casting
US3060482A (en) * 1960-11-08 1962-10-30 Donald J Doyle Vacuum nozzle face plate construction for paper sheet cleaners and the like
US3189929A (en) * 1961-12-22 1965-06-22 Avisun Corp Wiping device for continuous traveling films
US3354941A (en) * 1965-05-24 1967-11-28 Halstead Metal Products Inc Continuous direct chill-type casting unit

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608710A (en) * 1950-06-06 1952-09-02 Joseph P Zaidan Suction brush for cleaning venetian blinds
US2705353A (en) * 1952-04-04 1955-04-05 Kaiser Aluminium Chem Corp Method of continuous casting
GB759290A (en) * 1953-02-21 1956-10-17 Boehler & Co Ag Geb An improved process of cooling billets in continuous-casting plants
US2837791A (en) * 1955-02-04 1958-06-10 Ind Res And Dev Corp Method and apparatus for continuous casting
US2871534A (en) * 1956-04-20 1959-02-03 Wieland Werke Ag Method of continuous casting
US2955334A (en) * 1959-08-31 1960-10-11 Olin Mathieson Continuous casting
US3060482A (en) * 1960-11-08 1962-10-30 Donald J Doyle Vacuum nozzle face plate construction for paper sheet cleaners and the like
US3189929A (en) * 1961-12-22 1965-06-22 Avisun Corp Wiping device for continuous traveling films
US3354941A (en) * 1965-05-24 1967-11-28 Halstead Metal Products Inc Continuous direct chill-type casting unit

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891024A (en) * 1973-06-13 1975-06-24 Noranda Mines Ltd Method for the continuous casting of metal ingots or strips
US4120455A (en) * 1976-01-23 1978-10-17 Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie Apparatus for cooling metal sections
JPS5416335A (en) * 1977-07-07 1979-02-06 Sumitomo Aluminium Smelting Co Continuous casting method of high silicon aluminum alloys
US4266983A (en) * 1979-03-12 1981-05-12 Courtaulds Limited Method of, and means for, reducing the liquid content of air-permeable material in tubular form
DE3036209A1 (de) * 1980-09-25 1982-05-06 Kaiser Aluminum & Chemical Corp., 94643 Oakland, Calif. Verfahren zum abfuehren von kuehlmittel von gussstuecken und abstreifvorrichtung fuer gussstuecke
US4391016A (en) * 1980-10-14 1983-07-05 Kabushiki Kaisha Kobe Seiko Sho Degreasing apparatus for elongated materials
US4483040A (en) * 1982-12-22 1984-11-20 International Business Machines Corporation In-line mask cleaning system
US4517699A (en) * 1984-04-19 1985-05-21 Deluxe Innovations, Inc. Paint roller cleaning apparatus
FR2565143A1 (fr) * 1984-06-01 1985-12-06 Maschf Augsburg Nuernberg Ag Procede pour refroidir localement des surfaces de pieces d'oeuvre faconnees par soudage, avant et/ou apres le point de soudure, au moyen d'un melange d'eau et d'air, et dispositif pour la mise en oeuvre de ce procede
US4632297A (en) * 1984-06-01 1986-12-30 M.A.N. Maschinenfabrik Augsburg-Nurnberg Ag Method and apparatus for feeding shape-welded workpieces immediately after formation
US4781239A (en) * 1986-12-03 1988-11-01 Cegedur Societe De Transformation De L'aluminium Pechiney Process and apparatus for casting in a pit, without any explosive risk, of aluminum and its alloys, particularly with lithium
US4823431A (en) * 1987-06-01 1989-04-25 Carpenter Weda B Fan blade cleaning device
US5174829A (en) * 1989-05-17 1992-12-29 H. J. Heinz Company Limited Removing surface liquid from articles
US5235722A (en) * 1992-04-07 1993-08-17 Robert W. Lackey Corporation Vacuum fan duster
USD395102S (en) 1997-03-17 1998-06-09 Cika Christina L Vacuum nozzle for cleaning ceiling fan blades
US5765259A (en) * 1997-03-17 1998-06-16 Cika; Christina L. Vacuum nozzle for cleaning ceiling fan blades
RU2424869C2 (ru) * 2005-10-28 2011-07-27 Новелис Инк. Гомогенизация и термическая обработка отливаемого металла
WO2007048250A1 (en) * 2005-10-28 2007-05-03 Novelis Inc. Homogenization and heat-treatment of cast metals
US7516775B2 (en) 2005-10-28 2009-04-14 Novelis Inc. Homogenization and heat-treatment of cast metals
US20090165906A1 (en) * 2005-10-28 2009-07-02 Robert Bruce Wagstaff Homogenization and heat-treatment of cast metals
CN101300092B (zh) * 2005-10-28 2011-08-31 诺韦利斯公司 铸造金属锭块的方法和金属锭块以及由此制造金属片材制品的方法
US7871478B2 (en) 2005-10-28 2011-01-18 Novelis Inc. Homogenization and heat-treatment of cast metals
US20070102136A1 (en) * 2005-10-28 2007-05-10 Wagstaff Robert B Homogenization and heat-treatment of cast metals
US9802245B2 (en) 2005-10-28 2017-10-31 Novelis Inc. Homogenization and heat-treatment of cast metals
US9073115B2 (en) 2005-10-28 2015-07-07 Novelis Inc. Homogenization and heat-treatment of cast metals
US20110139055A1 (en) * 2007-08-21 2011-06-16 Jan Erik Stokkeland Steerable paravane system for towed seismic streamer arrays
CN101306463B (zh) * 2008-05-30 2010-06-09 苏州有色金属研究院有限公司 铸造超高强铝合金扁锭的非等高挡水装置及其应用方法
CN105414501A (zh) * 2015-12-19 2016-03-23 西南铝业（集团）有限责任公司 一种结晶器用刮水器
CN108436048A (zh) * 2018-03-27 2018-08-24 银邦金属复合材料股份有限公司 一种铝合金半连续铸造用刮水器及刮挡水的方法
CN110434289A (zh) * 2019-09-02 2019-11-12 南通华东油压科技有限公司 一种柱塞泵中间连接体铸件辅助冷却用砂箱装置及使用方法
CN110434289B (zh) * 2019-09-02 2024-01-19 南通华东油压科技有限公司 一种柱塞泵中间连接体铸件辅助冷却用砂箱装置的使用方法

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Publication number Publication date
DE2136751A1 (de) 1972-03-02
CA934110A (en) 1973-09-25
FR2103329A5 (enrdf_load_stackoverflow) 1972-04-07
GB1362689A (en) 1974-08-07

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