WO2011117931A1 - 金属鋳造における溶湯連続供給システム - Google Patents

金属鋳造における溶湯連続供給システム Download PDF

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Publication number
WO2011117931A1
WO2011117931A1 PCT/JP2010/002910 JP2010002910W WO2011117931A1 WO 2011117931 A1 WO2011117931 A1 WO 2011117931A1 JP 2010002910 W JP2010002910 W JP 2010002910W WO 2011117931 A1 WO2011117931 A1 WO 2011117931A1
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WO
WIPO (PCT)
Prior art keywords
furnace
holding furnace
molten metal
casting
hot water
Prior art date
Application number
PCT/JP2010/002910
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English (en)
French (fr)
Japanese (ja)
Inventor
上妻学而
Original Assignee
ロザイ工業株式会社
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
Application filed by ロザイ工業株式会社 filed Critical ロザイ工業株式会社
Priority to KR1020117000951A priority Critical patent/KR101238994B1/ko
Priority to CN2010800023395A priority patent/CN102292175B/zh
Publication of WO2011117931A1 publication Critical patent/WO2011117931A1/ja

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    • 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
    • B22D11/10—Supplying or treating molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D39/00—Equipment for supplying molten metal in rations
    • B22D39/02—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/04—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like tiltable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D45/00—Equipment for casting, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D47/00—Casting plants

Definitions

  • the present invention relates to a molten metal continuous supply system in metal casting capable of continuously casting a plurality of batches in one holding furnace by a combined operation of a tilting melting furnace and a tilting holding furnace.
  • a tilting system that tilts the furnace body with the tilting fulcrum shaft as the base point by the operation of two hydraulic cylinders provided at the bottom of the furnace body and discharges the molten metal from the outlet It is known to supply a casting machine using a holding furnace (for example, refer to Patent Document 2).
  • a control system In discharging the molten metal from the tilt-type holding furnace of Patent Document 2 to the casting machine, a control system is used to adjust the tilting speed of the holding furnace using the casting molten metal level as an index in order to keep the amount of the discharged water constant. .
  • both the melting furnace and the holding furnace are batch furnaces
  • casting is inevitably completed when the first batch is discharged, and it is necessary to start over from the start in the next batch.
  • the work at the start of casting is complicated and there are many metal losses, a system capable of continuously casting a plurality of batches has been demanded.
  • the problem can be solved by installing two holding furnaces, but not only a large capital investment is required, but also a large installation area must be secured.
  • An object of the present invention is to provide a continuous supply system for molten metal that can be cast.
  • the present invention comprises a melting furnace and a holding furnace for tilting the furnace body to discharge the molten metal, and transferring the molten metal to the outlet of the melting furnace.
  • the holding furnace is stopped before the ascending limit and descends while continuing the hot water, and the third action is to raise the melting furnace and transfer a constant flow rate to the descending holding furnace via the transfer trough.
  • the holding furnace receives the hot water from the melting furnace while descending and simultaneously discharges a constant flow of hot water, and the holding furnace stops before the lowering limit and rises again while continuing the hot water.
  • the hot water discharged from the holding furnace in the first operation, the second operation, and the fifth operation is detected by detecting the level level of the cast molten metal with a sensor and transferring a constant flow rate.
  • the molten metal continuous supply system in metal casting wherein the molten metal is discharged from the melting furnace and the holding furnace in the third operation and the fourth operation, and the level of the cast hot water and the casting hot water are controlled.
  • the molten metal continuous supply system in metal casting wherein the surface level is detected by a sensor and controlled to transfer a constant flow rate, and the third and fourth operations of the molten metal hot water surface level and casting
  • the hot water level is controlled by two different systems and the hot water level is maintained normally, there is no relation, and if one of the hot water levels is abnormal, Stem not only can the correction operation on the other system side, it developed a melt continuous feed system in a metal casting, characterized in that is controlled by the interlock system complement each other, it was adopted.
  • the combined operation of the tilting type melting furnace and the tilting type holding furnace enables even a single holding furnace to continuously cast a plurality of batches without interrupting the molten metal.
  • the complicated work at the start can be omitted and the metal loss can be reduced, the yield is improved and the work efficiency is improved.
  • the equipment cost is not increased and the installation area does not have to be increased.
  • FIG. 1 is a front view showing a melting furnace and a holding furnace.
  • FIG. 2 is a simplified front view showing a first operation of the melting furnace and the holding furnace.
  • FIG. 3 is a simplified front view showing a second operation of the melting furnace and the holding furnace.
  • FIG. 4 is a simplified front view showing a third operation of the melting furnace and the holding furnace.
  • FIG. 5 is a simplified front view showing a fourth operation of the melting furnace and the holding furnace.
  • FIG. 6 is a simplified front view showing a fifth operation of the melting furnace and the holding furnace.
  • FIG. 7 is an operation flow diagram of the melting furnace and the holding furnace.
  • FIG. 8 is a system flow diagram of one holding furnace.
  • FIG. 9 is a flowchart of the system of two holding furnaces.
  • FIG. 10 is a simplified cross-sectional view showing a tap pin control system.
  • FIG. 11 is a simplified cross-sectional view showing a spout pin control method.
  • 1 is a tilting type melting furnace for melting a metal material
  • 2 is a tilting type holding furnace for maintaining a molten metal M at a constant temperature.
  • the melting furnace 1 and the holding furnace 2 are provided side by side, and a transfer tub 3 protruding in the direction of the holding furnace 2 is provided at the outlet of the melting furnace 1, and the casting machine is cast at the outlet of the holding furnace 2.
  • a casting rod 4 projecting in the direction of the rod 5 is provided, the tip of the transfer kettle 3 reaches the holding furnace 2, the tip of the casting rod 4 reaches the casting machine casting rod 5, and the furnace bodies 1a and 2a are By tilting, the molten metal M in the furnace is discharged through the transfer tub 3 and the casting tub 4.
  • Hydraulic cylinders 6 and 7 are provided at the side portions of the melting furnace 1 and the holding furnace 2, and a tilting shaft hinge (not shown) is pivotally supported on the side of the outlet, so that the cylinders 6 and 7 extend and contract.
  • the molten metal of the melting furnace 1 and the holding furnace 2 is discharged through the transfer tub 3 and the casting tub 4, and the amount of discharged hot water increases or decreases depending on the rising speed (cylinder speed). .
  • the laser sensors 8 and 9 are sensors that continuously monitor the transition of the molten metal level 3a of the transfer tub 3 and the molten metal level 4a of the casting tub 4.
  • the hot water level 4a of the tub 4 is detected, and the rising speed of the melting furnace 1 and the holding furnace 2 is adjusted to discharge a certain amount of hot water. Further, when casting while receiving hot water from the melting furnace 1, the lowering speed is adjusted.
  • the front end portion (holding furnace inlet) of the transfer tub 3 has a closed structure, and the molten metal M is discharged from the spout 10 on the bottom surface of the transfer tub 3 and enters the holding furnace 2. Yes.
  • the spout 10 has a variable effective sectional area structure.
  • the usage aspect of the molten metal continuous supply system in the metal casting thus configured will be described.
  • the melting furnace 1 and the holding furnace 2 are as follows. Complex operations are required.
  • the tilting-type melting furnace 1 is in a stopped vertical state, and the molten metal M is in the hot water tank of the melting furnace 1 and does not discharge.
  • the tilting type holding furnace 2 is raised by the hydraulic cylinder 7, and the furnace body 2 a is slightly tilted by the tilting shaft hinge, so that the molten metal M in the holding furnace 2 is discharged through the casting rod 4.
  • the casting bath surface level 4a is detected by the laser sensor 9, and a constant flow is supplied to the casting machine casting rod 5 in the first operation (FIG. 2).
  • the melting furnace 1 remains in the stopped state of the first operation, and the molten metal M is in the hot water tank of the melting furnace 1 and does not discharge, but the holding furnace 2 rises further than the first operation and stops before the upper limit. To do.
  • the inclination of the furnace body 2a becomes tighter than the inclination of the first operation, and subsequently the molten metal M in the holding furnace 2 tries to enter the descending operation while continuing to discharge the molten metal through the casting rod 4 ( FIG. 3).
  • the melting furnace 1 is lifted by the hydraulic cylinder 6, the furnace body 1 a is tilted via the tilting shaft hinge, and the molten metal M in the hot water tank is discharged through the hot water transfer tub 3 and transferred to the holding furnace 2 that is being lowered. .
  • the molten metal level 3a is detected by the laser sensor 8 to supply a constant flow rate, and the molten metal M in the holding furnace 2 is supplied to the casting machine casting rod 5 through the casting rod 4 at a constant flow rate.
  • the third operation is discharging (FIG. 4).
  • the holding furnace 2 further descends and receives a certain amount of molten metal M discharged from the transfer tub 3 of the melting furnace 1, and at the same time a constant flow rate from the holding furnace 2 through the casting tub 4 to the casting machine casting tub 5.
  • the fourth operation is supplied (FIG. 5).
  • the fifth operation is to stop the holding furnace 2 before reaching the lowering limit and try to enter the rising operation again while continuing the hot water (FIG. 6).
  • the holding furnace 2 needs to control the casting pouring surface level 4a by adjusting the descending tilting speed in order to discharge the molten metal M replenished from the melting furnace 1 even during the descending.
  • the hot water surface levels 3a and 4a of the hot metal transfer cup 3 and the cast iron 4 are set to the two levels. It is controlled by two different systems and is not relevant as long as the hot water surface levels 3a and 4a are maintained normally. In addition to this system, the other system side also requires a correction operation and is controlled by an interlocking system that complements each other.
  • step 21 on the melting furnace side when the molten iron transfer molten metal reaches the upper upper limit (HH), as shown in step 22, It is only necessary to stop the tilting rise, and the holding furnace 2 downstream may continue the control operation. However, when the casting furnace molten metal reaches the upper limit (HH) in step 31 on the holding furnace side while the holding furnace 2 is descending (in the case of the transfer metal level control and cast iron level control), the process goes to step 32. As shown, it is necessary not only to switch the tilting descending speed of the holding furnace to a high speed, but also to stop the supply of the molten metal by lowering the melting furnace being raised at a high speed as shown in Step 33.
  • the high-speed descending operation of the melting furnace 1 and the holding furnace 2 may be stopped if the cast molten metal level drops to DL in steps 34 and 35.
  • step 38 when the casting molten metal reaches the lower level lower limit (LL), as shown in step 36, it is only necessary to stop the tilting descent of the holding furnace, and the melting furnace 1 continues the control operation. Then, the molten metal M must be continuously supplied.
  • LL lower level lower limit
  • FIG. 8 is a block diagram in the case of comprising one melting furnace 1, one holding furnace 2, and one casting machine 5. Continuous casting is possible.
  • FIG. 9 shows a block diagram in the case of a single melting furnace 1, two holding furnaces 2 and 2, and two casting machines 5 and 5. By using this system, two or more kinds of alloys can be continuously cast simultaneously.
  • the furnace tilting speed adjustment method has been described as the molten metal flow rate control method.
  • the present invention is not necessarily limited thereto.
  • FIG. A tap pin control system in which the movable pin 12 moves left and right in the opening 11 of the holding furnace 2 or, as shown in FIG. 11, is movable on the cylinder 13 provided at the bottom of the casting rod 4 disposed on the upper surface of the casting machine casting rod 5.
  • the spout pin control system in which the pin 14 moves up and down is possible, and it is a matter of course that various design changes can be made without departing from the spirit of the invention.
  • the present invention is useful as it is possible to continuously cast a plurality of batches with each one melting furnace and holding furnace, but even when there are two or more holding furnaces, it is useful by using this system. At the same time, it is also effective when two types of alloys are continuously cast simultaneously.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Charging Or Discharging (AREA)
PCT/JP2010/002910 2010-03-25 2010-04-22 金属鋳造における溶湯連続供給システム WO2011117931A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020117000951A KR101238994B1 (ko) 2010-03-25 2010-04-22 금속 주조에 있어서의 용탕 연속 공급 시스템
CN2010800023395A CN102292175B (zh) 2010-03-25 2010-04-22 金属铸造中的熔体连续供给系统

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-069527 2010-03-25
JP2010069527A JP5412349B2 (ja) 2010-03-25 2010-03-25 金属鋳造における溶湯連続供給システム

Publications (1)

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WO2011117931A1 true WO2011117931A1 (ja) 2011-09-29

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JP (1) JP5412349B2 (zh)
KR (1) KR101238994B1 (zh)
CN (1) CN102292175B (zh)
WO (1) WO2011117931A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111590063A (zh) * 2020-05-20 2020-08-28 中冶赛迪工程技术股份有限公司 一种高速铸轧液控装置、方法及装备
CN113600805A (zh) * 2021-08-30 2021-11-05 山东鲁豫阀门有限公司 一种熔铝炉铸造系统应急监测释放装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105880543B (zh) * 2016-05-17 2019-01-25 洛阳秦汉精工股份有限公司 一种定量浇注方法及定量浇注装置、成形装置
CN107745114B (zh) * 2017-10-24 2020-02-18 云南云铝涌鑫铝业有限公司 转注装置及合金溶液的转注方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54149326A (en) * 1978-05-16 1979-11-22 Hitachi Metals Ltd Automatic metal pouring and apparatus therefor
JPH06262342A (ja) * 1993-03-16 1994-09-20 Hitachi Metals Ltd 自動注湯制御方法
JP2001321924A (ja) * 2000-05-18 2001-11-20 Tokyu Kk 鋳造用自動注湯装置
JP2002079367A (ja) * 2000-09-01 2002-03-19 Showa Denko Kk 連続自動鋳造システムおよび連続自動鋳造鍛造システム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2706253Y (zh) * 2003-10-15 2005-06-29 南昌有色冶金设计研究院 铜阳极板定量浇铸秤

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54149326A (en) * 1978-05-16 1979-11-22 Hitachi Metals Ltd Automatic metal pouring and apparatus therefor
JPH06262342A (ja) * 1993-03-16 1994-09-20 Hitachi Metals Ltd 自動注湯制御方法
JP2001321924A (ja) * 2000-05-18 2001-11-20 Tokyu Kk 鋳造用自動注湯装置
JP2002079367A (ja) * 2000-09-01 2002-03-19 Showa Denko Kk 連続自動鋳造システムおよび連続自動鋳造鍛造システム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111590063A (zh) * 2020-05-20 2020-08-28 中冶赛迪工程技术股份有限公司 一种高速铸轧液控装置、方法及装备
CN113600805A (zh) * 2021-08-30 2021-11-05 山东鲁豫阀门有限公司 一种熔铝炉铸造系统应急监测释放装置

Also Published As

Publication number Publication date
CN102292175A (zh) 2011-12-21
CN102292175B (zh) 2013-11-06
KR20110132309A (ko) 2011-12-07
JP5412349B2 (ja) 2014-02-12
JP2011200900A (ja) 2011-10-13
KR101238994B1 (ko) 2013-03-04

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