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
  • C21D1/63—Quenching devices for bath quenching
  • C21D1/64—Quenching devices for bath quenching with circulating liquids
• • 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
• • 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
• • 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

Definitions

• the present invention relates to an intermittent quenching apparatus for passing a steel sheet into a cooling bath filled and filled with cooling water to continuously insert the sheet.
• an iron plate cooling machine described in Japanese Patent Publication No. 53-11-247 is known.
• This iron plate cooling machine is provided with a vertically symmetrical mantle that encloses and encloses a plurality of upper and lower support guides ⁇ — la that conveys the iron plate, and the iron plate that is located between the rollers in close proximity.
• the jacket is closed at both ends and on the rain side in the longitudinal direction, and the cooling water supply pipe and the discharge pipe are alternately connected to the jacket, whereby the space between the jacket and the iron is closed. This is the cooling water supply and discharge passage.] This is where iron ⁇ is cooled.
• the present invention has alleviated the drawbacks of the conventional art bite, and its purpose is to reduce the size of the cooling water while maintaining the cooling capacity. Fewer steel sheets Provide continuous quenching equipment.
• the sales board will be rejected by restricting the water supply with the water.
• the water is misread ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ Impellers are installed close to the upper and lower surfaces of the steel sheet, and the rotation of the impeller promotes the circulation of cooling water, and the cooling water is applied to the steel sheet in the moving direction of the steel sheet or in the opposite direction. And move relatively at a predetermined speed. This eliminates inconveniences such as the clogging of the conventional 5 nozzles and the blockage of the cooling water passage, and effectively cuts the board. This can also reduce the amount of cooling water used and reduce the size of the device.
• a plurality of upper and lower rolls are arranged in the water storage tank for guiding and transferring the Q steel plate, and the impellers are respectively provided between adjacent rolls.
• This impeller has a ⁇ parallel to the axis of the roll, and in order to move the cooling water at a predetermined speed relative to the chain plate, as an example, the direction of rotation of the Turned in the opposite direction.
• FIG. 1 is a cross-sectional view showing an embodiment of a steel plate inserting / inserting apparatus according to the present invention
• FIG. 2 is FIG. 1]!- ⁇ ⁇ Section! H
• FIG. 3 is FIG. 1
• FIG. 4 is a sectional view of the essential part of FIG.
• Figure 1 shows an example of the ⁇ insertion device associated with the bonito ⁇ ⁇ , and in this operation, ⁇ ⁇ 1 2 passes through ⁇ ⁇ 10 in the horizontal direction. I started doing business
• the water reservoir 10 is provided with rectangular openings 14 at both ends in the longitudinal direction, respectively, to communicate with the entrance of the plate 12.
• a plurality of upper rolls 16 and lower ⁇ -rolls 18 of a plurality of values are arranged in the water tank 10 at appropriate intervals in pairs. ] ?, and its bearings are supported by bearings 20 and 22, respectively.
• the centers of the rolls 16 and 18 are horizontal and are respectively distributed in a direction perpendicular to the longitudinal direction of the water storage tank 10.
• One end of each of these calls 16 and 18 penetrates the bearing device 20 and 22 respectively, and projects outside of the water reservoir 10.
• the motors 28, 30 are quickly connected to each other via these motors, and these rolls 16 and 18 are respectively rotated.
• the upper roll 16 and the lower ⁇ -rule 18 are in the opposite directions (arrows A and S directions in Fig.
• these blade emblems 32 and 34 are supported by bearing capacities 44 and 46, respectively, as shown in Fig. 3. It penetrates through these bearing devices and protrudes out of the water tank 1.0.
• the protruding ends of the rotating shafts are connected to the prime movers 52, 54 via hands 48, 50, respectively, and the impellers 32, 3 are driven by these JK motors. 4 are designed to be circulated individually.
• the direction of rotation of the impeller 32 placed between the upper rollers 16 is opposite to the direction of rotation of these upper rollers.
• the direction of rotation of the hanger 34 arranged between the lower mouth 18 is opposite to the direction of rotation of the lower c 18 (arrow ⁇ ).
• the cooling water between the blades and the plate 12 moves in the direction opposite to the transport direction (the direction of the arrow) of the plate 12 due to the rounding of these impellers.
• the outer peripheral speeds of these impellers 32 and 34 should be at least 2 m / sec relative to the chain plate; Is set.
• These impeller 3 2, 3 4 are accommodated in the respective blade 3 ⁇ 4 wheel box 5 6, 5 8.
• These girder boxes 56 and 58 have a rectangular shape that accommodates the emblems 32 and 34, respectively, and the plate 1 2; of Five sides cover the impellers 3 2 and 3 4.
• These impeller boxes 56 and 58 are provided with a chain plate so that the cooling water is unnecessarily diffused when the cooling water is efficiently stirred by the circulation of the blades 32 and 34. It has the role of making contact with the surface.
• one ends of a plurality of picture water branch pipes 60 and 62 are respectively connected on the opposite side to the side of ⁇ ⁇ 12.
• the other ends of these water supply pipes 60 and 62 are connected to the water supply main pipes 64 and 66, respectively, and these water supply main pipes are connected to the cooling water supply line shown in the figure. .
• the water supply pipes 60 and 62 are designed to pump the cooling water from the water supply source to the impeller boxes 56 and 58, respectively.However, the size of the water supply main pipes & 4 and 66 and the water supply The number of branch pipes 60 and 62 is the number of feathers: g In order to produce uniform cooling in the longitudinal direction of the car boxes 56 and 58, and to draw cooling water uniformly in the board width direction It is sufficient. Also, the cooling water supply by the cooling water flow shown in the figure is not enough to prevent the cooling effect due to the heat taken from the quenched steel sheet.
• the cooling water pressure may be about 0.5 / c.
• the end portion of the wing grass box 5 6 (58) is a thick portion 70 whose thickness gradually increases toward the surface, and the thick portion 70 and the roll 16 are formed. is a passage for ⁇ leading into the gap 6 eight et water ⁇ 1 0 by external organ to 3 ⁇ 4 ivy gap 7 2 3 ⁇ 4 formation of Russia Lumpur 1 6 (1 8) between (1 8) .
• water supply pipes 74 are arranged above and below the steel pipe 12 corresponding to the entrance 14 which is the entrance of the steel pipe. These water pipes 74 are parallel to the water main pipes 64.]
• the slit nozzle. 76 is connected to open the pressurized water 7 S from the water source. They are going to give honor to 14.
• Guides 79 protrude above and below the water reservoir ⁇ 1 OS nD l4 to prevent the decay of this injection pressure water.
• the guide plate 12 of the guide 79 (at a predetermined angle with respect to the feeding surface and the feeding direction), and when the power is in contact with the C ⁇ 3 ⁇ 4 Go-> 7 It is not necessary to install the slits and slips on the pits on the outlet side of the water tank because the steel plate has already been hardened.
• one side wall of the water storage tank 10 is set to be lower than that of the other side] so that the cooling water is over-driven.
• the water level of the cooling water 42 is set to be several hundreds above the top of the steel plate 12 0
• Impeller box 5 6, 5 8 was sent to: water drainage 4 4 arrow? , C-, fl ⁇ ⁇ ⁇ fl fl ⁇ fl ⁇ fl ⁇ ⁇ fl fl fl fl fl fl fl fl fl fl fl 2 fl fl fl 2 fl fl fl 2 2 3 ⁇ 4 6 3 7 2 Move away from it. Further, the cooling water moves in the lateral direction of the storage tank 10 as shown by the arrows L and M in FIG. 2, and overflows from the side wall of the storage tank 10 as shown by the arrow N. They will be paid out.
• the sales board 12 is intensively quenched at the respective impeller boxes 56 and 58, but moves in the longitudinal direction to perform the intermittent quenching work.
• the quenching work is always performed under the same conditions, so there is no possibility that uneven quenching will occur.
• the space between the upper impeller and impeller box and the lower impeller and the impeller box can be changed to deal with the wall thickness change, or the upper and lower impellers and impellers are installed in the water tank.
• the car box can be moved up and down. Or scan Li Tsu door Roh's Le 7 6 is also not good if possible the same up and down movement.
• a quick seal material is required at the divided part of the water reservoir.
• the cooling water was moved in the direction opposite to the moving direction of the plate. Even in the moving direction of ⁇ , the absolute speed between the chain plate surface and the cooling water may be set to a predetermined value or more.

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 Articles (AREA)
• Heat Treatment Of Strip Materials And Filament Materials (AREA)
• Heat Treatments In General, Especially Conveying And Cooling (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=15843459

Family Applications (1)

Country Status (5)

Families Citing this family (17)

Citations (1)

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• 1980
  • 1980-11-27 JP JP55167102A patent/JPS5792141A/ja active Granted
• 1981
  • 1981-11-27 WO PCT/JP1981/000356 patent/WO1982001894A1/ja not_active Ceased
  • 1981-11-27 US US06/396,904 patent/US4415143A/en not_active Expired - Lifetime
  • 1981-11-27 EP EP81903219A patent/EP0065577B1/en not_active Expired
• 1982
  • 1982-07-13 FI FI822492A patent/FI69102C/fi not_active IP Right Cessation

Patent Citations (2)

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