CN209062094U - A kind of device improving vaccum sensitive stove ingot solidification quality - Google Patents
A kind of device improving vaccum sensitive stove ingot solidification quality Download PDFInfo
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- CN209062094U CN209062094U CN201821727344.2U CN201821727344U CN209062094U CN 209062094 U CN209062094 U CN 209062094U CN 201821727344 U CN201821727344 U CN 201821727344U CN 209062094 U CN209062094 U CN 209062094U
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- ingot
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- cooled copper
- ingot mould
- solidification quality
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Abstract
The utility model provides a kind of device for improving vaccum sensitive stove ingot solidification quality, a kind of device improving vaccum sensitive stove ingot solidification quality, the vaccum sensitive stove includes feed compartment, working chamber, crucible, chute, water-cooled copper ingot mould device, ingot mould room, ingot mould trolley, the device that can improve ingot solidification quality are the combination of water-cooled copper ingot mould device or water-cooled copper ingot mould device and helium gas cooling conduit；The water-cooled copper ingot mould device is taken away the heat of ingot casting by quick water flow function, to realize the rapid cooling of ingot casting, improves ingot solidification quality；The helium gas cooling conduit improves the heat transfer of gap location, to take away the heat of ingot casting, realizes the rapid cooling of ingot casting, improve ingot solidification quality by being passed through helium to the gap location between ingot casting and ingot mould.
Description
Technical field
The utility model belongs to extraordinary field of metallurgy, is related to a kind of device for improving vaccum sensitive stove ingot solidification quality.
Background technique
Vacuum induction melting is the important smelting equipment for producing special steel, Precise Alloy, high temperature alloy, corrosion resisting alloy,
It is the complete set of equipments for integrating the multiple technologies such as machinery, electronics, vacuum.Its basic production technique be under high vacuum environment,
Crucible chinese raw materials is melted and refined by induction heating, is then directly or indirectly poured into ingot mould again, cooling forming.
Currently, the vaccum sensitive stove ingot mould type of cooling is mainly natural cooling.There is cooling velocities for this type of cooling
Small, the problems such as solidification cycle is long.Molten steel solidification shrinkage in ingot mould can form gap between ingot casting and ingot mould, change heat transfer
Mode becomes heat radiation from heat transfer, and heat transfer efficiency substantially reduces.In addition, ingot mould heat transfer efficiency itself is slow, and with steel ingot
The increase of mould temperature, heat-transfer capability further deteriorate.
Therefore, the ingot casting obtained using natural cooling, especially medium-and-large-sized ingot casting, it is easy to generate center segregation, center
The problems such as loose, shrinkage cavity and association field trash are assembled.
In industrial production, it can only be cast using low overheat, but in order to avoid nozzle blocking, the degree of superheat cannot be too low, effect
Fruit is effective.
Utility model content
In order to solve the above relevant issues, the utility model provides a kind of vaccum sensitive stove ingot solidification quality that improves
Device, a kind of device improving vaccum sensitive stove ingot solidification quality, the vaccum sensitive stove includes feed compartment, working chamber, earthenware
Crucible, chute, water-cooled copper ingot mould device, ingot mould room, ingot mould trolley, the device that can improve ingot solidification quality are water-cooled copper
The combination of ingot mould device or water-cooled copper ingot mould device and helium gas cooling conduit；The water-cooled copper ingot mould device passes through quick water flow function
The heat of ingot casting can be taken away, to realize the rapid cooling of ingot casting, improve ingot solidification quality；The helium gas cooling conduit is logical
The gap location crossed between ingot casting and ingot mould is passed through helium, improves the heat transfer of gap location, to take away the heat of ingot casting, realizes ingot casting
Rapid cooling, improve ingot solidification quality.
Further, the water-cooled copper ingot mould device be equipped with from inside to outside side cooled copper, high speed Directed cooling copper pipe and
Water jacket；Further include bottom surface cooled copper, pedestal, upper pressure pull, frame, intake antrum, lower chamber, sealing device, upper cavity and positioning
Device；The high speed Directed cooling copper pipe spiral surrounding is in the cooled copper of side；The side cooled copper is mounted on frame
It is interior, and pulled and be fixed by upper pressure；The bottom surface cooled copper is mounted on the base；The frame is mounted on the base, bottom surface
Cooled copper is embedded into the cooled copper of side；Water seam is formed between side cooled copper and water jacket, cooling water enters from intake antrum,
By shunting, water seam and high speed Directed cooling copper pipe are respectively enterd, then be discharged by upper cavity；Lower chamber and upper cavity are filled by sealing
It sets and separates.
Further, between water jacket and side cooled copper, the positioning device is used for water jacket the positioning device
It is positioned with frame, side cooled copper and frame position；The positioning device can make water jacket and side cooled copper outside
Between form impartial water seam, the water seam includes bottom coohng water seam and side cooling water seam.
Further, the side cooled copper is integrated tubular structure, and section is circle, and with tapered, convenient for de-
Ingot.
The heat transfer form in ingot casting and ingot mould inner wall gap is radiant heat transfer, and molten bath is only being melted with the position that ingot mould directly contacts
At the narrowband of pond planum semilunatum lower part.Gas by being passed through from high capacity of heat transmission to gap location can significantly improve the biography of gap location
Heat.The liquid metal of molten bath and ingot mould contact site in fact plays the role of a fluid-tight, to hinder the leakage of helium, and permits
Perhaps certain cooling gas pressure is set up in gap site.The heat-transfer capability of gap location depends on thermal coefficient, the gas of gas
The pressure and flow of body and the width in gap.Under 7000Pa pressure condition below, the heat transfer efficiency of gas is pressurized strongly
Power influences.Under slightly lower pressure condition, the two is even more in a linear relationship.Therefore heat transmission rate is proportional to pressure and temperature
Difference.The temperature difference is exactly the heat that gas is taken away.
The utility model uses water-cooled copper ingot mould device and helium gas cooling conduit, and high speed is oriented to water pipe can quick water flowing and helium
Gas gas tube can fill helium, and water flowing can quickly take away heat, and filling helium can be improved heat-transfer capability, and the fast quickly cooling of ingot casting can be achieved
But, improve Solidification Quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model water-cooled copper ingot mould device.
Fig. 3 is the ingot casting and ingot mould inner wall gap schematic diagram of the utility model.
Specific embodiment
Embodiment 1
The following ingot casting production of diameter Ф 410mm, water-cooled copper ingot mould device 5 and helium gas cooling catheter combination applying step:
(1) before vacuum induction melting is near completion, ingot mould trolley 7 in ingot mould room 6 by water-cooled copper ingot mould device 5 send to
Casting position；
(2) 5 water flowing of water-cooled copper ingot mould device is cooling；Water flowing pressure: 0.4 ~ 0.5MPa；
(3) after the completion of melting/refining, crucible 3 is overturn, and starts to cast；Molten steel pours into chute 4, reinjects ingot mould by chute 4
In；
(4) after casting executes 5min, start helium injection gas (He)；Helium pressure: 0.3 ~ 0.4MPa；
(5) after the completion of casting, continue helium injection gas 5min；
(6) after ingot casting solidifies completely, cut off the water, ingot mould and ingot casting are removed into ingot mould room.
Embodiment 2
The above ingot casting production of diameter Ф 410mm, water-cooled copper ingot mould device 5 and helium gas cooling catheter combination applying step:
(1) before vacuum induction melting is near completion, ingot mould room ingot mould trolley 7 send water-cooled copper ingot mould device 5 to casting
Position；
(2) 5 water flowing of water-cooled copper ingot mould device is cooling；Water flowing pressure: 0.4 ~ 0.5MPa；
(3) after the completion of melting/refining, crucible 3 is overturn, and starts to cast；Molten steel pours into chute 4, reinjects ingot mould by chute 4
In；
(4) after casting executes 8min, start helium injection gas (He)；Helium pressure: 0.35 ~ 0.45MPa；
(5) after the completion of casting, continue helium injection gas 10min；
(6) after ingot casting solidifies completely, cut off the water, ingot mould and ingot casting are removed into ingot mould room.
Embodiment 3
The following ingot casting production of diameter Ф 410mm, is used alone 5 step of water-cooled copper ingot mould device:
(1) before vacuum induction melting is near completion, ingot mould room ingot mould trolley 7 send water-cooled copper ingot mould device 5 to casting
Position；
(2) 5 water flowing of water-cooled copper ingot mould device is cooling；Water flowing pressure: 0.4 ~ 0.5MPa；
(3) after the completion of melting/refining, crucible 3 is overturn, and starts to cast；Molten steel pours into chute 4, reinjects ingot mould by chute 4
In；
(4) after ingot casting solidifies completely, cut off the water, ingot mould and ingot casting are removed into ingot mould room.
Embodiment 4
The above ingot casting production of diameter Ф 410mm, is used alone 5 step of water-cooled copper ingot mould device:
(1) before vacuum induction melting is near completion, ingot mould room ingot mould trolley 7 send water-cooled copper ingot mould device 5 to casting
Position；
(2) 5 water flowing of water-cooled copper ingot mould device is cooling；Water flowing pressure: 0.45 ~ 0.55MPa；
(3) after the completion of melting/refining, crucible 3 is overturn, and starts to cast；Molten steel pours into chute 4, reinjects ingot mould by chute 4
In；
(4) after ingot casting solidifies completely, cut off the water, ingot mould and ingot casting are removed into ingot mould room.
Claims (4)
1. a kind of device for improving vaccum sensitive stove ingot solidification quality, it is characterised in that: the vaccum sensitive stove includes charging
Room (1), working chamber (2), crucible (3), chute (4), water-cooled copper ingot mould device (5), ingot mould room (6), ingot mould trolley (7) are described
The device that ingot solidification quality can be improved is that water-cooled copper ingot mould device (5) or water-cooled copper ingot mould device (5) and helium gas cooling are led
The combination of pipe；The water-cooled copper ingot mould device (5) is taken away the heat of ingot casting by quick water flow function, to realize ingot casting
It is quickly cooled down, improves ingot solidification quality；The helium gas cooling conduit by being passed through helium to the gap location between ingot casting and ingot mould,
The heat transfer of gap location is improved, to take away the heat of ingot casting, the rapid cooling of ingot casting is realized, improves ingot solidification quality.
2. a kind of device for improving vaccum sensitive stove ingot solidification quality according to claim 1, it is characterised in that: described
Water-cooled copper ingot mould device (5) is equipped with side cooled copper (53), high speed Directed cooling copper pipe (57) and water jacket (54) from inside to outside；
It further include bottom surface cooled copper (55), pedestal (56), top board (51), frame (52), intake antrum (58), lower chamber (59), close
Seal apparatus (510), upper cavity (511) and positioning device (512)；High speed Directed cooling copper pipe (57) spiral surrounding is in side
In cooled copper (53)；The side cooled copper (53) is mounted in frame (52), and pulls (51) by upper pressure and be fixed；Institute
Bottom surface cooled copper (55) is stated to be mounted on pedestal (56)；The frame (52) is mounted on pedestal (56), bottom surface cooled copper
(55) it is embedded into side cooled copper (53)；Water seam (513), cooling water are formed between side cooled copper (53) and water jacket (54)
Enter from intake antrum (58), by shunting, respectively enters water seam (513) and high speed Directed cooling copper pipe (57), then by upper cavity
(511) it is discharged；Lower chamber (59) and upper cavity (511) are separated by sealing device (510).
3. a kind of device for improving vaccum sensitive stove ingot solidification quality according to claim 2, it is characterised in that: described
Positioning device (512) is located between water jacket (54) and side cooled copper (53), and the positioning device (512) is used for water jacket
(54) it is positioned with frame (52), side cooled copper (53) and frame (52) position；The positioning device (512) can make water jacket
(54) impartial water seam (513) is formed between side cooled copper (53) outside, the water seam (513) includes bottom coohng water
Seam and side cooling water seam.
4. a kind of device for improving vaccum sensitive stove ingot solidification quality according to claim 2 or 3, it is characterised in that:
The side cooled copper (53) is integrated tubular structure, and section is circle, and with tapered, convenient for de- ingot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821727344.2U CN209062094U (en) | 2018-10-24 | 2018-10-24 | A kind of device improving vaccum sensitive stove ingot solidification quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821727344.2U CN209062094U (en) | 2018-10-24 | 2018-10-24 | A kind of device improving vaccum sensitive stove ingot solidification quality |
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| CN209062094U true CN209062094U (en) | 2019-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261913A (en) * | 2018-10-24 | 2019-01-25 | 江苏集萃先进金属材料研究所有限公司 | A kind of device improving vaccum sensitive stove ingot solidification quality |
-
2018
- 2018-10-24 CN CN201821727344.2U patent/CN209062094U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261913A (en) * | 2018-10-24 | 2019-01-25 | 江苏集萃先进金属材料研究所有限公司 | A kind of device improving vaccum sensitive stove ingot solidification quality |
| CN109261913B (en) * | 2018-10-24 | 2020-10-13 | 江苏集萃先进金属材料研究所有限公司 | Method for improving ingot casting solidification quality of vacuum induction furnace |
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