US3546911A - Apparatus for quenching steel plate - Google Patents

Apparatus for quenching steel plate Download PDF

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Publication number
US3546911A
US3546911A US443558A US3546911DA US3546911A US 3546911 A US3546911 A US 3546911A US 443558 A US443558 A US 443558A US 3546911D A US3546911D A US 3546911DA US 3546911 A US3546911 A US 3546911A
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United States
Prior art keywords
plate
quenching
rollers
quench
spray bars
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Expired - Lifetime
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US443558A
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English (en)
Inventor
Walter H Lenz
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Caterpillar Inc
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Caterpillar Tractor Co
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    • 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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • 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
    • 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

Definitions

  • the method of the present invention locates the plate desired to be processed between sets of ribbed rolls, functioning to straighten the hot-plate prior to its being quenched, and then sprays water or other suitable quenching fluid to the opposite sides of the plate so held by the ribbed rolls.
  • the area of plate contact is minimal thus substantially reducing the quantity of heat transferred from the plate, and the quenching fluid is supplied in suflicient quantities to actually flood the plate.
  • the apparatus is so designed that a plate approximately 12 feet long and 48 inches wide may have a selected portion thereof quenched. This is accomplished by providing selectively operable spray bars, overlying the upper and lower surface of the plate, and suitable controls to admit water or other suitable quenching fluid to desired ones of such spray bars. In this manner, it is possible to quench a longitudinal strip of the plate or a portion extending the entire width and a portion of its length. For example, it is possible to quench a strip 18 inches wide and 12 feet long or a strip 48 inches wide and 6 feet long.
  • the plate 3,546,911 Patented Dec. 15, 1970 quenched by the present invention is waltzed or reciprocated between selected limits during the quenching operation. Such reciprocation insures uniform quenching and assists in maintaining the plate flat.
  • Another object of this invention is to prevent distortion of flat steel plates by uniformly and simultaneously distributing quenching fluid to the surfaces of such plate.
  • Another and more particular object of this invention is to quench steel plates in order to maintain their flatness by a method whereby the plate is reciprocated while it is being subjected to large quantities of sprayed quenching fluid.
  • a further object of this invention is to provide an apparatus for carrying out the method of this invention.
  • Another object of this invention is to reciprocate and restrain a flat plate against distortion during the quenching operation.
  • Still another object of this invention is to provide a new and improved plate quenching apparatus which is automatic in operation.
  • FIG. 1 is a perspective, with parts broken away, showing a preferred form of the apparatus for carrying out the method
  • FIG. 2 is an enlarged transverse section taken substantially along the line IIII of FIG. 1;
  • FIG. 3 is a diagrammatic perspective of a representative number of spray bars, the quenching fluid distribution system, and a suitable plate shown in phantom outline and which is divided into four quenching zones;
  • FIG. 4 is an enlarged side view of FIG. 1 showing a plate located between the roller frame and the spray pattern of the spray bars;
  • FIG. 5 is a longitudinal section of a spray bar taken substantially along the line VV of FIG. 4.
  • the quenching apparatus constructed according to this invention includes a quenching unit 10 being in the form of an elongate, generally rectangular, housing and including a lower stationary roller frame 12 rotatably supporting a plurality of longitudinally spaced transversely extending rollers 14 which are provided with regularly axially spaced ribs 16.
  • a vertically reciprocable roller frame 18, including similarly formed rollers 20 rotatably mounted thereon is positioned so that rollers 20 are in vertical alignment with the rollers 14.
  • Ribs 22 are also formed on the rollers 20 and are located to be co-planar with the ribs 16.
  • rollers 14 and the rollers 20 are sufficient to provide the inclusion of spray bars 24 and 26 being associated, respectively, with the frame 12 and the frame 18.
  • Each of the rollers 14 has reduced diameter portions extending through bearings 28 which are suitably mounted on the side rails of the frame 12. These reduced diameter portions have sprockets 30 rigidly mounted thereon which are in meshing engagement with suitable chains 32 being driven by a drive mechanism 34.
  • the drive mechanism 34 is associated with a control circuit which is responsive to the position of a plate located in the quenching unit to cause reversible rotation of the rollers 14.
  • a quenching fluid distribution system generally indicated by the numeral 36 is arranged to provide flow of quenching fluid to selected ones of the upper and lower spray bars so that if it is desired just a portion of the plate may be quenched.
  • this quenching fluid distribution system is also operable to supply quenching fluid to all of the upper and lower spray bars at the same time.
  • a hot-plate indicated by the letter P and supported on a suitable transport table 38, is fed between the forward-most lower and upper sets of rolls whereupon the plate is transported inwardly into the quenching unit for processing.
  • FIG. 2 shows a vertical transverse section of the quenching unit 10
  • the upper rollers 20 have their ribs 22 closely adjacent the ribs 16 of the lower rolls 14.
  • its thickness is suf ficient to cause upward movement of the roller frame 18 and in this manner pressure is applied to the opposite surfaces of the plate while it is in the quenching unit.
  • vertical guide rods 40 which are secured to the stationary frame 12 and are received in suitable bores 42 formed in the upper frame 18.
  • the upper frame 18 moves upwardly and its weight is transferred to the plate through the ribs 22 and in this manner the power is imparted to the lower rollers 14 by the drive mechanism 34 causing rotation of the upper rollers which are in frictional engagement with the plate.
  • the drive mechanism 34 By providing ribbed rolls, spaced longitudinally of the plate, a minimum area of contact results since each of the ribs in contact with the plate establish line contact which assists in reducing transfer of heat from the plate to the rolls and consequently prevents premature partial quenching.
  • the drive mechanism 34 may include a motor 46 for drawing the plate P into the quenching unit and for ejecting the plate P from the unit at relatively high speed.
  • the motor 46 is connected to a gear reduction unit 48 on whose output shaft is mounted an electric clutch 50.
  • the sprocket chain 32 is trained about a drive sprocket 52 which is connected to a shaft extending from the electric clutch 50 to a second electric clutch 54 which is in turn connected to the output shaft of a torque motor 56.
  • the motor 56 is controlled to drive the chain 32 first in one direction for a fixed period of time and then to drive the chain 32 in the opposite direction for a fixed period of time so as to move the plate P back and forth between the orifices.
  • the direction of rotation of motor 56 and the duration of rotation in either direction can be controlled manually or automatically by limit switches and timers.
  • the motor 56 preferably operates at a lower speed than the motor 46.
  • control circuit may include timers (not shown) of conventional design which operate to maintain the motor 56 and the clutch 54 energized for a predetermined period of time during which the plate is waltzed or reciprocated between selected limits in the quenching unit by periodically changing the direction of rotation of motor 56.
  • the timer deenergizes the motor 56 and the clutch 54, closes the quench valves 58, and energizes the motor 46 and the clutch which now causes rotation of the lower rolls 14 in a direction which ejects the plate from the quenching unit onto the transfer table 38.
  • a single two-speed motor can be arranged to produce the same function as provided by the two motors 46 and 56.
  • the quenching apparatus is automatically operable to insure uniform and rapid quenching of a plate and at the same time prevents warping or distortion of the plate while it is being quenched.
  • FIG. 3 which shows the arrangement of the quenching fluid distribution system and selected ones of the upper and lower spray bars
  • the plate illustrated in phantom outline located between the upper and lower spray bars 26 and 24, respectively is divided into four areas designated as Zones 1, 2, 3, and 4.
  • the quenching fluid distribution system 36 can be conditioned for operation whereby a selected portion of each plate may be more severely quenched than the remaining portion.
  • the spray bars may be operated to apply much greater quantities of quenching fluid to Zones 1 and 3 and thereby quench a longitudinal strip of the plate which will have a value of hardness greater than the longitudinal strip defined by Zones 2 and 4; or the quenching fluid may be distributed so that Zones 1 and 2 or 3 and 4 may be quenched more severly to thereby produce selected values of hardness.
  • the quench valves 58 programmed to open or remain closed in the event it is desired to produce selective quenching, but the spray bars themselves are constructed in a manner which assists in producing such selective quenching.
  • FIG. 5 which shows a longitudinal section of a typical spray bar, which for matter of convenience has been chosen as one of the upper spray bars 26, it will be seen that it includes a transverse disc shaped wall to which is attached oppositely extending longitudinally aligned tubes 62 being provided with a series of orifices 64 through which issue the quenching fluid.
  • Quenching fluid is admitted to either of the tubes 62 by a separate manifold which is part of the quenching fluid distribution system.
  • the appropriate quenching valve 58 is open communicating quenching fluid to one of the tubes 62, no fluid will flow through the other tube if the corresponding quenching valve is closed.
  • FIG. 4 which shows an enlarged longitudinal section of a portion of the quenching unit with the plate located between the lower and upper rolls, it will be seen that sufficient distance is provided between the sets of rolls to accommodate two spray bars.
  • Each of the spray bars is provided with three rows of orifices 64 to produce a spray pattern which substantially evenly distributes equal amounts of quenching fluid per unit of area of the plate.
  • quenching fluid is distributed in streams produced by each orifice 64 but shortly thereafter the orifices become submerged since the quenching unit is constructed to actually flood the plate.
  • the quenching fluid issuing through the orifices 64 of the upper and lower spray bars is of sufficient quantity to submerge all orifices 64. It has been found that a value of pressure of 50 pounds per square inch at each of the orifices 64 produces a high degree of turbulence or wiping of the quenching fluid which in turn assures a substantially uniform and rapid rate of heat transfer from the plate being treated.
  • Apparatus for quenching steel plates comprising spaced support rollers arranged to support the plate to be quenched at intervals throughout the plates entire length and width, pressure rollers disposed above the plate and registering with the support rollers to hold the plate flat, a plurality of integral circumferential ribs spaced axially along the length of said support rollers and upper rollers and wherein the outer circumferential surfaces of said ribs contact said plate, means to rotate said support rollers in opposite directions during sequential periods of time to cause the plate to reciprocate while being confined between the support and pressure rollers, and perforated tubes for liquid quench arranged between some of the pressure rollers to spray quench downwardly against the plate as it reciprocates, and similar tubes between some of the support rollers simultaneously to spray quench upwardly against the plate, and the spacing between the said support and pressure rollers and the quench tubes associated therewith being limited such as to retard the flow of quenching fluid to the extent that the entire plate is immersed during the quenching operation.
  • Apparatus for quenching steel plates comprising spaced support rollers arranged to support the plate to be quenched at intervals throughout the plates entire length and width, upper rollers disposed above the plate and registering with the support rollers to maintain the plate fiat, a plurality of integral circumferential ribs spaced axially along the length of said support rollers and upper rollers and wherein the outer circumferential surfaces of said ribs contact said plate, means to rotate at least said support rollers in opposite directions during sequential periods of time to cause the plate to reciprocate while being confined between the support and upper rollers, and perforated tubes for liquid quench arranged between some of the upper rollers to spray quench downwardly against the plate as it reciprocates, and similar tubes between some of the support rollers simultaneously to spray quench upwardly against the plate.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (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)
US443558A 1965-03-29 1965-03-29 Apparatus for quenching steel plate Expired - Lifetime US3546911A (en)

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US44355865A 1965-03-29 1965-03-29

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BE (1) BE676832A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1075328A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792844A (en) * 1972-05-31 1974-02-19 G Berry Quenching method and apparatus
US3793867A (en) * 1971-09-22 1974-02-26 Drever Co Apparatus for continuously quenching a heated metal plate
US3897230A (en) * 1973-05-09 1975-07-29 Inland Steel Co Cooling system
US3909315A (en) * 1971-12-29 1975-09-30 Nippon Steel Corp Method for rapid cooling of high temperature metal pieces
US3958796A (en) * 1973-10-02 1976-05-25 Mannesmannrohren-Werke Ag Quench-hardening of pipes
US3990257A (en) * 1973-05-09 1976-11-09 Inland Steel Company Method for cooling workpieces in a liquid bath
US4011112A (en) * 1973-06-08 1977-03-08 Nippon Kokan Kabushiki Kaisha Multi-sectioned cooling method for heated steel material
US4148673A (en) * 1972-02-29 1979-04-10 United States Steel Corporation Plate quenching method
US4149703A (en) * 1978-01-31 1979-04-17 Drever Company Apparatus for quenching a heated metal plate
US4152180A (en) * 1976-11-22 1979-05-01 Borg-Warner Corporation Water spray quench process
US4204880A (en) * 1977-01-28 1980-05-27 Mannesmann Aktiengesellschaft High speed cooling of ingots
DE3027846A1 (de) * 1979-11-09 1981-05-27 Ishikawajima-Harima Jukogyo K.K., Tokyo Verfahren und einrichtung zum abkuehlen von blech, insbesondere stahlblech, mittels wasser
US4333777A (en) * 1979-11-20 1982-06-08 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Method and apparatus for compensating for local temperature difference of steel product
US4415143A (en) * 1980-11-27 1983-11-15 Kawasaki Steel Corporation Continuous hardening device of steel plate
US4450608A (en) * 1982-06-18 1984-05-29 Richter Gedeon Vegyeszeti Gyar Rt. Apparatus for producing tempered plate parts
US4486009A (en) * 1982-03-18 1984-12-04 Aktien-Gesellschaft der Dillinger Huttenwerks Apparatus for cooling sheet metal panels
EP0080322A3 (en) * 1981-11-19 1985-11-21 Kawasaki Steel Corporation Method and apparatus for continuously quenching a steel plate
US4723562A (en) * 1984-10-09 1988-02-09 Centre de Recherches Metallurgiques--Centrum Voor Research in de Metallurgie Apparatus for cooling a moving metal product
US5186018A (en) * 1990-06-27 1993-02-16 Hoogovens Groep Bv Cooling system for cooling a moving metal strip
US7374624B1 (en) 2006-10-25 2008-05-20 John Paul Lacy Vertical plate dip quench
CN109593933A (zh) * 2019-01-15 2019-04-09 北京科技大学 一种铸坯自动在线淬火装置及方法
US20220042121A1 (en) * 2018-10-19 2022-02-10 Northeastern University Roller quenching flow zone control device for metal plate strips
CN114934168A (zh) * 2022-05-24 2022-08-23 崔永 一种用于粉末冶金齿轮齿面淬火设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107937679A (zh) * 2017-12-29 2018-04-20 江苏共昌轧辊股份有限公司 一种轧辊水淬机及水淬冷却方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420083A (en) * 1966-01-13 1969-01-07 Drever Co Roller pressure high intensity quench systems
US3423254A (en) * 1964-05-27 1969-01-21 Drever Co Roller pressure quench system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423254A (en) * 1964-05-27 1969-01-21 Drever Co Roller pressure quench system
US3420083A (en) * 1966-01-13 1969-01-07 Drever Co Roller pressure high intensity quench systems

Cited By (29)

* Cited by examiner, † Cited by third party
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
US3909315A (en) * 1971-12-29 1975-09-30 Nippon Steel Corp Method for rapid cooling of high temperature metal pieces
US4148673A (en) * 1972-02-29 1979-04-10 United States Steel Corporation Plate quenching method
US3792844A (en) * 1972-05-31 1974-02-19 G Berry Quenching method and apparatus
US3897230A (en) * 1973-05-09 1975-07-29 Inland Steel Co Cooling system
US3990257A (en) * 1973-05-09 1976-11-09 Inland Steel Company Method for cooling workpieces in a liquid bath
US4011112A (en) * 1973-06-08 1977-03-08 Nippon Kokan Kabushiki Kaisha Multi-sectioned cooling method for heated steel material
US3958796A (en) * 1973-10-02 1976-05-25 Mannesmannrohren-Werke Ag Quench-hardening of pipes
US4152180A (en) * 1976-11-22 1979-05-01 Borg-Warner Corporation Water spray quench process
US4204880A (en) * 1977-01-28 1980-05-27 Mannesmann Aktiengesellschaft High speed cooling of ingots
US4149703A (en) * 1978-01-31 1979-04-17 Drever Company Apparatus for quenching a heated metal plate
DE3027846A1 (de) * 1979-11-09 1981-05-27 Ishikawajima-Harima Jukogyo K.K., Tokyo Verfahren und einrichtung zum abkuehlen von blech, insbesondere stahlblech, mittels wasser
US4371149A (en) * 1979-11-09 1983-02-01 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Apparatus for cooling sheet steel by water spraying
US4333777A (en) * 1979-11-20 1982-06-08 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Method and apparatus for compensating for local temperature difference of steel product
US4415143A (en) * 1980-11-27 1983-11-15 Kawasaki Steel Corporation Continuous hardening device of steel plate
EP0080322A3 (en) * 1981-11-19 1985-11-21 Kawasaki Steel Corporation Method and apparatus for continuously quenching a steel plate
US4575052A (en) * 1981-11-19 1986-03-11 Kawasaki Steel Corporation Apparatus for continuously quenching a steel plate
US4486009A (en) * 1982-03-18 1984-12-04 Aktien-Gesellschaft der Dillinger Huttenwerks Apparatus for cooling sheet metal panels
US4450608A (en) * 1982-06-18 1984-05-29 Richter Gedeon Vegyeszeti Gyar Rt. Apparatus for producing tempered plate parts
US4723562A (en) * 1984-10-09 1988-02-09 Centre de Recherches Metallurgiques--Centrum Voor Research in de Metallurgie Apparatus for cooling a moving metal product
AU643530B2 (en) * 1990-06-27 1993-11-18 Hoogovens Groep Bv Cooling system for cooling a moving metal strip
US5186018A (en) * 1990-06-27 1993-02-16 Hoogovens Groep Bv Cooling system for cooling a moving metal strip
US7374624B1 (en) 2006-10-25 2008-05-20 John Paul Lacy Vertical plate dip quench
US20220042121A1 (en) * 2018-10-19 2022-02-10 Northeastern University Roller quenching flow zone control device for metal plate strips
US12018342B2 (en) * 2018-10-19 2024-06-25 Northeastern University Roller quenching flow zone control device for metal plate strips
CN109593933A (zh) * 2019-01-15 2019-04-09 北京科技大学 一种铸坯自动在线淬火装置及方法
CN109593933B (zh) * 2019-01-15 2024-01-23 北京科技大学 一种铸坯自动在线淬火装置及方法
CN114934168A (zh) * 2022-05-24 2022-08-23 崔永 一种用于粉末冶金齿轮齿面淬火设备
CN114934168B (zh) * 2022-05-24 2024-04-26 崔永 一种用于粉末冶金齿轮齿面淬火设备

Also Published As

Publication number Publication date
BE676832A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-08-22
GB1075328A (en) 1967-07-12

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