US3861597A - Apparatus for cooling metal material - Google Patents

Apparatus for cooling metal material Download PDF

Info

Publication number
US3861597A
US3861597A US382387A US38238773A US3861597A US 3861597 A US3861597 A US 3861597A US 382387 A US382387 A US 382387A US 38238773 A US38238773 A US 38238773A US 3861597 A US3861597 A US 3861597A
Authority
US
United States
Prior art keywords
cooling
apparatuses
slit
annular
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US382387A
Other languages
English (en)
Inventor
Takao Tsukamura
Koji Nakayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP8858272U external-priority patent/JPS4944809U/ja
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Application granted granted Critical
Publication of US3861597A publication Critical patent/US3861597A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars

Definitions

  • An apparatus for cooling metal material comprising a cooling pipe, each encircling the pass way of to-becooled material of long length dimension, and having a slit or holes provided around the inner annular surface of itsinner circumference.
  • An annular nozzle extends inwardly from the surface of the inner circumference of the pipes. Each nozzle is formed by nozzle walls and having at its inner end a cooling water jetting slit for jetting cooling water toward cooled material.
  • the present invention relates to an apparatus for cooling metal material of long size in such shape as wire rod, bar or extruded articles with cooling water jetted from a nozzle.
  • the cooling may become more irregular with cooled material, making the abovementioned problems occur more frequently, particularly, when the material deviates from the correct course in relation to the pipe.
  • Another object of the present invention is to provide an apparatus for cooling steel material efficiently and speedily within a limited cooling zone by using a plurality of such apparatuses arranged in series along the pass line of the material, each in such manner as to encircle the pass line.
  • a further object of the present invention is to provide an apparatus for cooling steel material, the use of a great number of such apparatuses arranged in series making it possible to completely drain waste cooling water by utilizing the impact of the jets of cooling water hitting each other, with a draining device set at an appropriate position on the line of cooling apparatuses.
  • a further object of the present invention is to provide an apparatus for cooling steel material, which is capable of adjusting the jetting rate of cooling water according to the kind, diameter, etc. of cooled material.
  • FIG. 1 is a fragmentary sectional view of one embodiment of the cooling apparatus of the present invention.
  • FIG. 2 is a side view of the cooling apparatus of FIG. 1 along the line II II.
  • FIG. 3 is an arrangement of the cooling apparatuses of the present invention shown in FIG. I in combination with a draining device.
  • FIG. 4 is a fragmentary sectional view of another embodiment of the cooling apparatus of the present invention.
  • FIG. 5 is a side view of the cooling apparatus of FIG. 4 along the line VI VI.
  • FIG. 6 is an arrangement of a plurality of the cooling apparatuses of the present invention of FIG. 4 arranged in series.
  • annular cooling pipe 1 is provided in such manner as to encircle the pass line of metal material of long size (such as rolled wire rod), such pipe having in the inner annular surface thereof facing the center of the circle formed thereby a slit open wholly round such surface, and also being provided with nozzle walls 3 extending in the direction of the center of the circle formed by the pipe in such manner as to enclose the slit 2, thus forming a tendering section, walls 3 thus constituting an annular nozzle.
  • a second-staged, wholly round open slit from which is jetted cooling water at a right angle against the entire circumference of the cooled material.
  • Cooling water supplying pipes 7 and 8 are connected with the annular cooling pipe at two opposite diametric positions thereof. This is to make the flow of the cooling water 6 as constant as possible.
  • a member 10 fixed by welding or otherwise on one wall 3, is screwed on a member 9 fixed on the body of the annular cooling pipe 1, so that the interspace of the slit can be adjusted by the forward or backward movement of the one wall by the turning of the member 10.
  • the present invention is not limited to an adjustable mechanism; but the fixed type is also usable, in the present invention so far as the appropriate interspace of the slit can be maintained.
  • a member 18 is fixed by welding or otherwise on the outside of the annular cooling pipe 1 which is constructed as mentioned above, and a connecting member 12 is fixed and held with bolt 13 between the member and the fixed member 11 for connecting the annular cooling pipes one after another in series.
  • a tubular outlet guide and a tubular inlet guide Respectively at the rear part and the front part of the cooling pipe 1, there are mounted a tubular outlet guide and a tubular inlet guide.
  • These guides and 16 are provided as a pair, and the ends of respective guides facing each other have therebetween a space in which jetted cooling water contacts the cooled material.
  • the other ends of the guides respectively face the ends of guides of the adjacent cooling apparatus.
  • These guides 15 and 16 may be attached to the cooling apparatus or other places by any suitable method.
  • These guides 15 and 16 function as the guide for rolled wire rod, and are so designed as to prevent the burst of cooling water due to contact of the rolled wire with the slit 4 and the resulting irregularity of cooling effect.
  • the inner diameters of the guides 15 and 16 are made smaller than that of the slit.
  • the rolled wire rod 14 passes through the inlet guides 16, and is cooled with cooling water from the wholly round open slit 4 and passes through the outlet guide 15 into the adjacent annular cooling apparatus or device. Thus, it is cooled, as it passes through the cooling devices one after another.
  • Cooling water jetted from the slit 4 contacts the rolled wire rod 14 and is branched in opposite directions into the outlet guide 15 and the inlet guide 16.
  • the so branched jets hit the jets branched from the slits ofthe adjacent devices, thus forming a flow l9 (hereinafter referred to the hitting flow) running nearly perpendicularly to the rod in the form ofa disk, which then is discharged from the spaces between the inlet guides 16 and the outlet guides 15.
  • the rolled wire rod 14 is cooled incessantly with ever fresh cooling water.
  • a scattering prevention cover 17 should be provided above and between the guides.
  • FIG. 3 illustrates the arrangement of the total system with annular cooling devices and draining devices.
  • a plurality of annular cooling devices 1 are arranged with an appropriate distance between adjacent devices along the direction of movement of rolled wire rod 14. Cooling water is supplied through cooling water supplying pipes 24.
  • One draining device 21 is provided for a group of a given number of annular cooling devices, ahead of each respective group Water is supplied to the device through a water supplying pipe 25.
  • the so constructed total cooling system is housed in a draining housing 26; the water used for cooling rolled wire or rod and for draining, is discharged from an exhaust part 27.
  • FIG. 4 and FIG. 5 illustrate another embodiment of the cooling apparatus of the present invention.
  • the upparatus shown in these drawings is an variation of the apparatus of the two staged slit system shown in FIG. 1 and FIG. 2.
  • a slit 32 is provided round the inner annular surface of the annular cooling pipe 31 facing the center of the circle formed thereby.
  • a second-staged annular nozzle 35 constructed with nozzle walls 33 is provided wholly round the circumference of slit 32, so that the variation of dynamic water pressure of cooling water 36 in the annular cooling pipe 31 will not directly influence the jet of cooling water.
  • a cooling water jetting slit 34 is provided at the end or inner surface of annular nozzle 35.
  • the dynamic water pressure of the cooling water is constant at the outlet of second-staged annular nozzle 35.
  • Cooling water supplying pipes 37 and 38 are connected with the annular cooling pipe 31 at two opposite positions. This is to make the flow of cooling water 36 in the annular cooling pipe 31 run under as uniform a pressure as possible. If a member 40 fixed by welding or otherwise on one nozzle wall 33 and a member 39 fixed on the annular cooling pipe 31 are threadably engaged, such that nozzle wall 33 may be moved forward or backward by turning of the member 40, so that the interspace of the slit 34 may be changeable for the adjustment of the water supply from the slit 34 according to the quality of rolled wire rod or other factors.
  • the slit 34 is so constructed that the adjacent slits are positioned at respective slanting angles of a and a to the axis of the rolled wire rod, and so that adjacent slits face each other.
  • the slanting angles a and a may be less than but they are preferred to be between 10 and less than 90, dependent on the speed and the size of the rolled wire rod.
  • a pair of the cooling apparatuses which are so constructed to jet cooling water at slanting angles against the pass line of the rolled wire rod 14, are positioned to have the directions of their slanting angles opposite. as shown in FIG. 4.
  • the method of positioning the cooling apparatus is such that a member 41 is fixed by welding or otherwise to the annular cooling pipe.
  • a connecting member 42 is fixed and held by a bolt between the member 41 and a fixing member 44.
  • another cooling apparatus is positioned on the same member 42 at a certain distance from the already positioned cooling apparatus.
  • tubular guides 45 and 46, 45a and 46a are placed between adjacent annular cooling pipes 31, so as to guide the progress of rolled wire rod.
  • the rolled wire rod 14 enters through an inlet guide 46 into an annular cooling pipe 31, is cooled with cooling water from circumferential slit 34, and is sent through an outlet guide 45 to another annular cooling pipe 31, thus cooling is made successively.
  • rolled wire rod is cooled with cooling apparatuses by groups, each consisting of two devices, and with ever fresh cooling water.
  • a cover 47 may be provided over the guides.
  • the flow to the delivery side of the cooled material from the cooling apparatus in the entry side of the cooled material is generally larger and stronger than the flow to entry side of the cooled material from the cooling apparatus in the delivery side of the cooled material, due to the effect of the moving material carrying a portion of the water, such effect being in proportion to the delivery speed of the cooled material, referring to FIG. 4.
  • the hitting flow appears in the position whereat the opposing flow are balanced.
  • the balanced position varies according to the speed of the cooled material, the angle a and a, the volume and pressure of the cooling water from the cooling apparatus, the position of the cooling apparatus, and the desired cooling rate.
  • the preset of the angle a and a is made by the combination of a and a to be preset, for example a 45 and a 90.
  • the angle may be preset to small angle in order to achieve a wiping effect.
  • the angle a of the cooling apparatus in the delivery side of the cooled material is preset to a smaller angle than the angle a of the cooling apparatus in the entry side of the cooled material in order to achieve the proper hitting flow, i.e. a S a.
  • the angle a may equal to l80 a.
  • FIG. 6 illustrates the arrangement of the total system of annular cooling apparatuses, grouped by pairs of cooling devices, arranged in a series in the direction of movement of the rolled wire rod. Cooling water is supplied from cooling water supplying pipes 49.
  • the thus constructed total system is housed in a draining housing 50; and waste water is discharged from an exhaust port 51.
  • the cooling apparatus are arranged as mentioned above, the cooled material recuperates the surface temperature by the inner higher temperature in the space between two of the so arranged cooling devices. Alternation between cooling and recupuration of the surface temperature, makes the effect of cooling uniform.
  • FIG. 1 and FIG. 2 there is shown a slit provided wholly round the surface of the inner circumference of each cooling pipe.
  • mere holes or separate slits may be provided over the surface of the inner circumference of the cooling pipe, instead of such single slit as mentioned above, provided that the number of holes or slits is sufficient to insure constant dynamic water pressure and a laminar flow.
  • An apparatus for cooling longitudinally moving metal material comprising:
  • a circular cooling pipe positioned to coaxially surround the path off movement of said material, said cooling pipe being supplied at the interior thereof with a cooling medium;
  • said cooling pipe having around the inner annular surface thereof opening means to allow passage therefrom of said cooling medium
  • annular nozzle provided n said inner annular surface of said cooling pipe, said annular nozzle being formed of disk-shaped walls having central openings therethrough, said walls being operatively connected at the outer annular edges thereof to said cooling pipe at opposite sides of said opening means;
  • annular slit means for directing and focusing a single laminar jet of said cooling medium against said material.
  • a cooling system comprising a plurality of the cooling apparatuses as claimed in claim 1, said plurality of cooling apparatuses being connected in series with a coextensive and coaxial path of movement of said material.
  • each of said cooling apparatuses is positioned for directing said jet of cooling medium against said material in a plane perpendicular to the axis of said path of movement of said material and for causing said jet upon contacting said material to split into opposite branch jets flowing in opposite directions coaxial to said axis of said path of movement of said material; and further comprising means positioned between adjacent of said apparatuses for causing the opposite branch jets moving toward each other from said adjacent apparatuses to impact and to form a hitting flow moving radially outwardly from said axis in the form of a disk.

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)
  • Nozzles (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
US382387A 1972-07-27 1973-07-25 Apparatus for cooling metal material Expired - Lifetime US3861597A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP47075455A JPS5235007B2 (ja) 1972-07-27 1972-07-27
JP8858272U JPS4944809U (ja) 1972-07-27 1972-07-27
JP47080472A JPS5249401B2 (ja) 1972-07-27 1972-08-11

Publications (1)

Publication Number Publication Date
US3861597A true US3861597A (en) 1975-01-21

Family

ID=27301828

Family Applications (1)

Application Number Title Priority Date Filing Date
US382387A Expired - Lifetime US3861597A (en) 1972-07-27 1973-07-25 Apparatus for cooling metal material

Country Status (4)

Country Link
US (1) US3861597A (ja)
JP (2) JPS5235007B2 (ja)
DE (1) DE2337704A1 (ja)
IT (1) IT992710B (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000625A (en) * 1973-12-07 1977-01-04 Schloemann-Siemag Aktiengesellschaft Method of cooling a moving strand of hot material
US4231553A (en) * 1977-03-30 1980-11-04 Schloemann-Siemag Aktiengesellschaft Apparatus for cooling rapidly moving rolled material
US4488710A (en) * 1983-09-06 1984-12-18 Wean United, Inc. Apparatus for optimizing the cooling of a generally circular cross-sectional longitudinal shaped workpiece
US5337768A (en) * 1993-03-15 1994-08-16 Granco Clark, Inc. Extrusion billet taper quench unit
US20070181234A1 (en) * 2006-02-08 2007-08-09 Nallen Michael A Spray quench systems for heat treated metal products

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5441246B2 (ja) * 1974-04-24 1979-12-07
JPS5248507A (en) * 1975-10-16 1977-04-18 Nippon Kokan Kk <Nkk> Method for cooling outer surface of metallic pipe or large diameter
JPS5615204Y2 (ja) * 1976-08-27 1981-04-09
JPS5837443B2 (ja) * 1977-08-08 1983-08-16 新日本製鐵株式会社 軌間調整自在なレ−ルの締結方法
JPS5766055A (en) * 1980-10-02 1982-04-22 Tech Res & Dev Inst Of Japan Def Agency Moving and fixing system for object
JPS5945232A (ja) * 1982-09-08 1984-03-14 Sachiko Morimoto 移動託児所
JPH0348893Y2 (ja) * 1986-04-02 1991-10-18

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542237A (en) * 1944-11-13 1951-02-20 Ohio Seamless Tube Company Quenching apparatus for heattreated workpieces
US2616437A (en) * 1946-08-31 1952-11-04 Gen Electric Quenching device for horizontally moving articles
US2623531A (en) * 1948-06-04 1952-12-30 Int Nickel Co Spray cooling device
US2657698A (en) * 1947-08-27 1953-11-03 Selas Corp Of America Quenching apparatus
US2940418A (en) * 1959-03-27 1960-06-14 Black Clawson Co Paper machinery
US3044098A (en) * 1959-06-02 1962-07-17 United States Steel Corp Apparatus for cleaning wire rod
US3507712A (en) * 1967-09-08 1970-04-21 United States Steel Corp Method and apparatus for quenching pipe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542237A (en) * 1944-11-13 1951-02-20 Ohio Seamless Tube Company Quenching apparatus for heattreated workpieces
US2616437A (en) * 1946-08-31 1952-11-04 Gen Electric Quenching device for horizontally moving articles
US2657698A (en) * 1947-08-27 1953-11-03 Selas Corp Of America Quenching apparatus
US2623531A (en) * 1948-06-04 1952-12-30 Int Nickel Co Spray cooling device
US2940418A (en) * 1959-03-27 1960-06-14 Black Clawson Co Paper machinery
US3044098A (en) * 1959-06-02 1962-07-17 United States Steel Corp Apparatus for cleaning wire rod
US3507712A (en) * 1967-09-08 1970-04-21 United States Steel Corp Method and apparatus for quenching pipe

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000625A (en) * 1973-12-07 1977-01-04 Schloemann-Siemag Aktiengesellschaft Method of cooling a moving strand of hot material
US4231553A (en) * 1977-03-30 1980-11-04 Schloemann-Siemag Aktiengesellschaft Apparatus for cooling rapidly moving rolled material
US4488710A (en) * 1983-09-06 1984-12-18 Wean United, Inc. Apparatus for optimizing the cooling of a generally circular cross-sectional longitudinal shaped workpiece
US5337768A (en) * 1993-03-15 1994-08-16 Granco Clark, Inc. Extrusion billet taper quench unit
US5425386A (en) * 1993-03-15 1995-06-20 Granco Clark, Inc. Extrusion billet taper quench unit
US20070181234A1 (en) * 2006-02-08 2007-08-09 Nallen Michael A Spray quench systems for heat treated metal products
EP1994186A2 (en) * 2006-02-08 2008-11-26 Thermatool Corp. Spray quench systems for heat treated metal products
EP1994186A4 (en) * 2006-02-08 2012-10-31 Thermatool Corp SPRAY TREATMENT SYSTEMS FOR THERMALLY TREATED METALLIC PRODUCTS
US8501083B2 (en) 2006-02-08 2013-08-06 Thermatool Corporation Spray quench systems for heat treated metal products

Also Published As

Publication number Publication date
IT992710B (it) 1975-09-30
JPS4932810A (ja) 1974-03-26
JPS4937809A (ja) 1974-04-08
JPS5249401B2 (ja) 1977-12-17
JPS5235007B2 (ja) 1977-09-07
DE2337704A1 (de) 1974-02-07

Similar Documents

Publication Publication Date Title
US3861597A (en) Apparatus for cooling metal material
US4065252A (en) Spray mist cooling arrangement
US3468362A (en) Method of cooling cast members from a continuous casting operation
US4226108A (en) Apparatus for cooling metal products
US4110092A (en) Method of apparatus for cooling inner surface of metal pipe
US4076222A (en) Runout cooling method and apparatus for metal rolling mills
US4458885A (en) Quenching apparatus for steel pipes
US20020195753A1 (en) Method and apparatus for quenching metal workpieces
JP4338282B2 (ja) 高温加熱された長尺鋼管の均一冷却装置および冷却方法
US2657698A (en) Quenching apparatus
US2565855A (en) Plural station quenching device for elongated objects
KR0128161B1 (ko) 제트 세척 노즐
US3785428A (en) Wheel-belt continuous casting machine
US1994360A (en) Soap chilling roll
US4210010A (en) Cooling arrangement
US3474853A (en) Apparatus for cooling and supporting the casting belt in a continuous metal casting machine of the drum and belt type
US4305574A (en) Quenching device
US2790412A (en) Machine and method for cladding pipes and the like
US2146793A (en) Method and apparatus for roll treatment
US4197730A (en) Cooling arrangement
US2371532A (en) Method of making fluid discharge nozzles
JP3190239B2 (ja) 鋼ストリップ冷却用ノズル式上面冷却ヘッダ管
US4236551A (en) Method of and apparatus for cooling rolled wire
US3771776A (en) Heat treatment apparatus
US3921964A (en) Water quench apparatus for coated tubing and the like