CN112828270A - Casting steel launder device of vacuum induction smelting furnace - Google Patents
Casting steel launder device of vacuum induction smelting furnace Download PDFInfo
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- CN112828270A CN112828270A CN202010481090.6A CN202010481090A CN112828270A CN 112828270 A CN112828270 A CN 112828270A CN 202010481090 A CN202010481090 A CN 202010481090A CN 112828270 A CN112828270 A CN 112828270A
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- baffle
- stage baffle
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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
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
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Abstract
The invention discloses a casting steel runner device of a vacuum induction smelting furnace, which comprises a runner, a first-stage baffle, a second-stage baffle, a third-stage baffle, a refractory cushion and a pouring nozzle, wherein the refractory cushion is laid on the inner wall of a groove body of the runner, the bottom surface of the refractory cushion and the bottom surface of the runner form a certain angle A, the angle A is more than 0 degrees and is more than 90 degrees, and a steel flowing port is formed among the first-stage baffle, the second-stage baffle, the third-stage baffle and the refractory cushion. The invention discloses a steel pouring launder device of a vacuum induction smelting furnace, which can solve the problems that molten steel flowing out of a pouring nozzle is easy to disperse and uneven, the steel tapping effect is poor, steel slag exists in a launder, the steel tapping effect is influenced, and the steel slag blocks a steel tapping hole.
Description
Technical Field
The invention relates to a vacuum induction melting furnace, in particular to a casting steel launder device of the vacuum induction melting furnace.
Background
High quality special steel master alloys are usually cast in vacuum induction melting furnaces, where casting steel is an extremely important and critical link in the whole casting process, almost a determining factor for the quality of the final product. The casting steel adopts a runner to connect a smelting crucible and a casting mold chamber, the smelted molten steel is poured into the runner from the crucible, the molten steel flows into a water outlet after oxide slag is removed by a runner baffle plate, and the molten steel is poured into an ingot mold of the casting mold chamber through a pouring water gap.
The current chute level sets up in the chute box, and the pouring mouth of a river sets up at the delivery port up end, and the straight cylinder type that the pouring mouth of a river adopted for the molten steel through the pouring mouth of a river outflow disperses easily and inhomogeneous, and the tapping effect is relatively poor, and can have the slag in the chute, influences the tapping effect, and the tapping mouth can be plugged up to the slag, needs to improve.
Disclosure of Invention
In view of the defects of the conventional vacuum induction smelting furnace, the invention provides a casting runner device of the vacuum induction smelting furnace, which can achieve the effects of steel liquid aggregation at a casting nozzle, no steel slag and good tapping quality.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a casting steel chute device of vacuum induction smelting furnace, the casting steel chute device of vacuum induction smelting furnace includes chute, first order baffle, second grade baffle, third grade baffle, fire-resistant bed course and pouring gate, the fire-resistant bed course is laid at the cell body inner wall of chute, the bottom surface and the chute bottom surface of fire-resistant bed course are certain angle A, and wherein 0 > A > 90, form between first order baffle, second grade baffle and the third grade baffle and the fire-resistant bed course and flow the steel mouth.
According to one aspect of the invention, the first stage baffle is provided with first hollowed holes on two sides, and the second stage baffle is provided with second hollowed holes on the rear side.
According to one aspect of the invention, the first baffle, the second baffle, the third baffle and the refractory cushion are all made of alumina with a content of 70% to 95%.
According to one aspect of the invention, the lower, middle end radius of the pouring nozzle is larger than the upper and lower end radii and is hourglass-shaped, and the inner wall portion of the pouring nozzle is made of carbon fibers.
In accordance with one aspect of the present invention, the trough includes a molten steel inlet-section trough and a molten steel outlet-section trough, the molten steel inlet-section trough being wider than the molten steel outlet-section trough, and the first-stage baffle, the second-stage baffle, and the third-stage baffle being disposed at the molten steel outlet-section trough.
According to one aspect of the invention, the bottom of the first stage baffle, the second stage baffle and the third stage baffle is spaced from the refractory pad by a distance of 24 to 26 mm.
According to one aspect of the invention, the first stage baffle is 360mm away from the second stage baffle, and the second stage baffle is 720mm away from the third stage baffle, wherein the first stage baffle is 350mm away from the third stage baffle.
According to one aspect of the invention, the cross section of the trough body of the flow trough is trapezoidal, the upper bottom angle of the cross section of the trough body is 96-98 degrees, and the lower bottom side is 160-165mm long.
In accordance with one aspect of the invention, the tertiary baffles are wider in thickness than the secondary and primary baffles.
According to an aspect of the invention, the molten steel outlet section launder is provided with a hanger plate.
The implementation of the invention has the advantages that:
the invention provides a casting steel runner device of a vacuum induction smelting furnace, which comprises a runner, a first-stage baffle, a second-stage baffle, a third-stage baffle, a refractory cushion and a pouring gate, wherein the refractory cushion is laid on the inner wall of a groove body of the runner, the bottom surface of the refractory cushion and the bottom surface of the runner form a certain angle A, the angle A is more than 0 degrees and is more than 90 degrees, and a steel flowing port is formed among the first-stage baffle, the second-stage baffle, the third-stage baffle and the refractory cushion. The molten steel that can solve the pouring mouth of a river outflow disperses easily and inhomogeneous, and the tapping effect is relatively poor, and can have the slag in the chute, influences the tapping effect, and the problem that the tap hole can be plugged up to the slag.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a casting runner device of a vacuum induction melting furnace according to the present invention;
FIG. 2 is a schematic cross-sectional view of a casting runner apparatus C-C of a vacuum induction melting furnace according to the present invention;
FIG. 3 is a schematic sectional view of a casting runner device A-A of the vacuum induction melting furnace according to the present invention;
fig. 4 is a schematic sectional view of the casting runner device of the vacuum induction melting furnace in section B-B.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the casting steel runner 1 device of the vacuum induction melting furnace comprises a runner 1, a first-stage baffle 3, a second-stage baffle 5, a third-stage baffle 8, a refractory cushion 2 and a casting nozzle 9, wherein the refractory cushion 2 is laid on the inner wall of a groove body of the runner 1, the bottom surface of the refractory cushion 2 and the bottom surface of the runner 1 form a certain angle A, wherein 0 degree is more than A and more than 90 degrees, and a steel flowing port is formed between the first-stage baffle 3, the second-stage baffle 5 and the third-stage baffle 8 and the refractory cushion 2.
In this embodiment, first hollowed holes 4 are provided on two sides of the first-stage baffle 3, and second hollowed holes 6 are provided on the rear side of the second-stage baffle 5.
In actual use, the first hollow hole and the second hollow hole can be used for controlling the flow rate of the molten steel and blocking the steel slag, and the purity of the molten steel is improved.
In this embodiment, the first baffle 3, the second baffle 5, the third baffle 8 and the refractory cushion layer 2 are all made of 95% aluminum oxide.
In actual use, the aluminum trioxide has strong fire resistance, and deformation caused by high-temperature molten steel is effectively prevented.
In this embodiment, the lower and middle end radii of the pouring gate 9 are larger than the upper and lower end radii and have an hourglass shape, and the inner wall portion of the pouring gate 9 is made of carbon fiber.
In the in-service use, the pouring nozzle is based on the consideration of high temperature resistance, the selected material is carbon fiber, the inner hole of the nozzle is of an hourglass shape design with the diameter of the upper end being large, the diameter of the middle end being small, and the diameter of the lower end being slightly larger than that of the middle end, and the design can help the molten steel to be uniformly dispersed when the molten steel flows in.
The implementation of the invention has the advantages that:
the invention provides a casting steel runner device of a vacuum induction smelting furnace, which comprises a runner, a first-stage baffle, a second-stage baffle, a third-stage baffle, a refractory cushion and a pouring gate, wherein the refractory cushion is laid on the inner wall of a groove body of the runner, the bottom surface of the refractory cushion and the bottom surface of the runner form a certain angle A, the angle A is more than 0 degrees and is more than 90 degrees, and a steel flowing port is formed among the first-stage baffle, the second-stage baffle, the third-stage baffle and the refractory cushion. The molten steel that can solve the pouring mouth of a river outflow disperses easily and inhomogeneous, and the tapping effect is relatively poor, and can have the slag in the chute, influences the tapping effect, and the problem that the tap hole can be plugged up to the slag.
Example 2:
the casting steel runner 1 device of the vacuum induction melting furnace comprises a runner 1, a first-stage baffle 3, a second-stage baffle 5, a third-stage baffle 8, a refractory cushion 2 and a casting nozzle 9, wherein the refractory cushion 2 is laid on the inner wall of a groove body of the runner 1, the bottom surface of the refractory cushion 2 and the bottom surface of the runner 1 form a certain angle A, wherein 0 degree is more than A and more than 90 degrees, and a steel flowing port is formed between the first-stage baffle 3, the second-stage baffle 5 and the third-stage baffle 8 and the refractory cushion 2.
In this embodiment, first hollowed holes 4 are provided on two sides of the first-stage baffle 3, and second hollowed holes 6 are provided on the rear side of the second-stage baffle 5.
In actual use, the first hollow hole and the second hollow hole can be used for controlling the flow rate of the molten steel and blocking the steel slag, and the purity of the molten steel is improved.
In the present embodiment, the first-stage baffle 3, the second-stage baffle 5, the third-stage baffle 8 and the refractory cushion layer 2 are all made of alumina with a content of 70% and silica with a content of 28%.
In the in-service use, aluminium trioxide has very strong fire resistance, effectively prevents the deformation that produces because of high temperature molten steel, and silica can completely cut off most heat transfer protection peripheral structure.
In this embodiment, the lower and middle end radii of the pouring gate 9 are larger than the upper and lower end radii and have an hourglass shape, and the inner wall portion of the pouring gate 9 is made of carbon fiber.
In the in-service use, the pouring nozzle is based on the consideration of high temperature resistance, the selected material is carbon fiber, the inner hole of the nozzle is of an hourglass shape design with the diameter of the upper end being large, the diameter of the middle end being small, and the diameter of the lower end being slightly larger than that of the middle end, and the design can help the molten steel to be uniformly dispersed when the molten steel flows in.
In this embodiment, the trough 1 includes a molten steel inlet-section trough 10 and a molten steel outlet-section trough 12, the molten steel inlet-section trough 10 is wider than the molten steel outlet-section trough 12, and the first-stage baffle 3, the second-stage baffle 5, and the third-stage baffle are disposed in the molten steel outlet-section trough 1.
In practical use, the wider runner at the molten steel inlet can facilitate pouring of molten steel, and the narrower runner at the molten steel outlet can enable the molten steel to be converged in the flowing process, so that the first-stage baffle, the second-stage baffle and the third-stage baffle can filter steel slag conveniently.
In this embodiment, the distance between the bottom of the first stage baffle 3, the second stage baffle 5 and the third stage baffle 8 and the refractory cushion layer 2 is 24 mm.
In this embodiment, the first-stage baffle 3 is 350mm away from the second-stage baffle, and the second-stage baffle 5 is 8700mm away from the third-stage baffle.
In this embodiment, the cross section of the trough body of the launder 1 is trapezoidal, the upper base angle of the cross section of the trough body is 96 degrees, and the length of the lower base side is 160 mm.
In practical use, because the steel flowing port is arranged at the bottom of the flowing groove, the flowing groove is trapezoidal, so that the area of the steel flowing port can be reduced, and the effect of filtering steel slag is improved.
In this embodiment, the third stage baffle 8 is wider than the second and first stage baffles 5, 3.
In actual use, because the distance between the third-stage baffle and the second-stage baffle is greater than the distance between the second-stage baffle and the first-stage baffle, more steel slag can be gathered between the third-stage baffle and the second-stage baffle, and the thickness of the third-stage baffle is increased to improve the strength.
The implementation of the invention has the advantages that:
the invention provides a casting steel runner device of a vacuum induction smelting furnace, which comprises a runner, a first-stage baffle, a second-stage baffle, a third-stage baffle, a refractory cushion and a pouring gate, wherein the refractory cushion is laid on the inner wall of a groove body of the runner, the bottom surface of the refractory cushion and the bottom surface of the runner form a certain angle A, the angle A is more than 0 degrees and is more than 90 degrees, and a steel flowing port is formed among the first-stage baffle, the second-stage baffle, the third-stage baffle and the refractory cushion. The molten steel that can solve the pouring mouth of a river outflow disperses easily and inhomogeneous, and the tapping effect is relatively poor, and can have the slag in the chute, influences the tapping effect, and the problem that the tap hole can be plugged up to the slag.
Example 3:
the casting steel runner 1 device of the vacuum induction melting furnace comprises a runner 1, a first-stage baffle 3, a second-stage baffle 5, a third-stage baffle 8, a refractory cushion 2 and a casting nozzle 9, wherein the refractory cushion 2 is laid on the inner wall of a groove body of the runner 1, the bottom surface of the refractory cushion 2 and the bottom surface of the runner 1 form a certain angle A, wherein 0 degree is more than A and more than 90 degrees, and a steel flowing port is formed between the first-stage baffle 3, the second-stage baffle 5 and the third-stage baffle 8 and the refractory cushion 2.
In this embodiment, first hollowed holes 4 are provided on two sides of the first-stage baffle 3, and second hollowed holes 6 are provided on the rear side of the second-stage baffle 5.
In actual use, the first hollow hole and the second hollow hole can be used for controlling the flow rate of the molten steel and blocking the steel slag, and the purity of the molten steel is improved.
In the present embodiment, the first-stage baffle 3, the second-stage baffle 5, the third-stage baffle 8 and the refractory cushion layer 2 are all made of alumina with a content of 70% and silica with a content of 28%.
In the in-service use, aluminium trioxide has very strong fire resistance, effectively prevents the deformation that produces because of high temperature molten steel, and silica can completely cut off most heat transfer protection peripheral structure.
In this embodiment, the lower and middle end radii of the pouring gate 9 are larger than the upper and lower end radii and have an hourglass shape, and the inner wall portion of the pouring gate 9 is made of carbon fiber.
In the in-service use, the pouring nozzle is based on the consideration of high temperature resistance, the selected material is carbon fiber, the inner hole of the nozzle is of an hourglass shape design with the diameter of the upper end being large, the diameter of the middle end being small, and the diameter of the lower end being slightly larger than that of the middle end, and the design can help the molten steel to be uniformly dispersed when the molten steel flows in.
In this embodiment, the trough 1 includes a molten steel inlet-section trough 10 and a molten steel outlet-section trough 12, the molten steel inlet-section trough 10 is wider than the molten steel outlet-section trough 12, and the first-stage baffle 3, the second-stage baffle 5, and the third-stage baffle are disposed in the molten steel outlet-section trough 1.
In practical use, the wider runner at the molten steel inlet can facilitate pouring of molten steel, and the narrower runner at the molten steel outlet can enable the molten steel to be converged in the flowing process, so that the first-stage baffle, the second-stage baffle and the third-stage baffle can filter steel slag conveniently.
In this embodiment, the distance between the bottom of the first stage baffle 3, the second stage baffle 5 and the third stage baffle 8 and the refractory cushion layer 2 is 24 mm.
In this embodiment, the first-stage baffle 3 is 350mm away from the second-stage baffle, and the second-stage baffle 5 is 8700mm away from the third-stage baffle.
In this embodiment, the cross section of the trough body of the launder 1 is trapezoidal, the upper base angle of the cross section of the trough body is 98 degrees, and the length of the lower base side is 165 mm.
In practical use, because the steel flowing port is arranged at the bottom of the flowing groove, the flowing groove is trapezoidal, so that the area of the steel flowing port can be reduced, and the effect of filtering steel slag is improved.
In this embodiment, the third stage baffle 8 is wider than the second and first stage baffles 5, 3.
In actual use, because the distance between the third-stage baffle and the second-stage baffle is greater than the distance between the second-stage baffle and the first-stage baffle, more steel slag can be gathered between the third-stage baffle and the second-stage baffle, and the thickness of the third-stage baffle is increased to improve the strength.
The implementation of the invention has the advantages that:
the invention provides a casting steel runner device of a vacuum induction smelting furnace, which comprises a runner, a first-stage baffle, a second-stage baffle, a third-stage baffle, a refractory cushion and a pouring gate, wherein the refractory cushion is laid on the inner wall of a groove body of the runner, the bottom surface of the refractory cushion and the bottom surface of the runner form a certain angle A, the angle A is more than 0 degrees and is more than 90 degrees, and a steel flowing port is formed among the first-stage baffle, the second-stage baffle, the third-stage baffle and the refractory cushion. The molten steel that can solve the pouring mouth of a river outflow disperses easily and inhomogeneous, and the tapping effect is relatively poor, and can have the slag in the chute, influences the tapping effect, and the problem that the tap hole can be plugged up to the slag.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a casting steel chute device of vacuum induction smelting furnace, its characterized in that, the casting steel chute device of vacuum induction smelting furnace includes chute, first order baffle, second grade baffle, third grade baffle, fire-resistant bed course and pouring gate, the fire-resistant bed course is laid at the cell body inner wall of chute, the bottom surface and the chute bottom surface of fire-resistant bed course are certain angle A, and wherein 0 > A > 90, form the mouth of flowing steel between first order baffle, second grade baffle and third grade baffle and the fire-resistant bed course.
2. The ladle spout assembly of a vacuum induction furnace as claimed in claim 1, wherein the first stage baffle is provided with first apertures on both sides thereof and the second stage baffle is provided with second apertures on the rear side thereof.
3. The steel casting runner device of the vacuum induction furnace as claimed in claim 1, wherein the first baffle, the second baffle, the third baffle and the refractory cushion are made of alumina with a content of 70-95%.
4. The ladle spout assembly of a vacuum induction furnace as recited in claim 1, wherein the radius of the lower middle end of the pouring nozzle is larger than the radius of the upper end and the radius of the lower end thereof in the shape of hourglass, and the inner wall portion of the pouring nozzle is made of carbon fiber.
5. The molten steel pouring trough device of a vacuum induction melting furnace according to any one of claims 1 to 4, wherein the trough includes a molten steel inlet-section trough and a molten steel outlet-section trough, the molten steel inlet-section trough is wider than the molten steel outlet-section trough, and the first-stage baffle, the second-stage baffle, and the third-stage baffle are provided in the molten steel outlet-section trough.
6. The ladle spout assembly of a vacuum induction furnace as recited in claim 5, wherein the bottom of the first, second and third baffles is spaced from the refractory lining by a distance of 24-26 mm.
7. The steel casting runner device of a vacuum induction furnace as claimed in claim 5, wherein the first stage baffle plate is 360mm away from the second stage baffle plate, and the second stage baffle plate is 720mm away from the third stage baffle plate, wherein the first stage baffle plate is 350mm away from the third stage baffle plate.
8. The steel casting runner device of the vacuum induction melting furnace as claimed in claim 5, wherein the cross section of the runner body is trapezoidal, the upper bottom angle of the cross section of the runner body is 96-98 degrees, and the lower bottom side is 160-165mm long.
9. The ladle spout assembly of a vacuum induction furnace as recited in claim 5, wherein the third baffle plate is wider than the second and first baffle plates.
10. The molten steel pouring runner apparatus of the vacuum induction melting furnace according to claim 5, wherein the molten steel outlet section runner is provided with a hanger plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010481090.6A CN112828270A (en) | 2020-05-31 | 2020-05-31 | Casting steel launder device of vacuum induction smelting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010481090.6A CN112828270A (en) | 2020-05-31 | 2020-05-31 | Casting steel launder device of vacuum induction smelting furnace |
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| CN112828270A true CN112828270A (en) | 2021-05-25 |
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| CN202010481090.6A Pending CN112828270A (en) | 2020-05-31 | 2020-05-31 | Casting steel launder device of vacuum induction smelting furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113020552A (en) * | 2021-05-28 | 2021-06-25 | 北京科技大学 | Launder for metal casting and method for smelting GH4169 alloy by using return materials |
| CN114393201A (en) * | 2022-01-07 | 2022-04-26 | 江苏省沙钢钢铁研究院有限公司 | Long launder baking device and baking method for vacuum induction furnace |
| CN114393201B (en) * | 2022-01-07 | 2024-07-30 | 江苏省沙钢钢铁研究院有限公司 | Long-flow groove baking device and baking method for vacuum induction furnace |
-
2020
- 2020-05-31 CN CN202010481090.6A patent/CN112828270A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113020552A (en) * | 2021-05-28 | 2021-06-25 | 北京科技大学 | Launder for metal casting and method for smelting GH4169 alloy by using return materials |
| CN114393201A (en) * | 2022-01-07 | 2022-04-26 | 江苏省沙钢钢铁研究院有限公司 | Long launder baking device and baking method for vacuum induction furnace |
| CN114393201B (en) * | 2022-01-07 | 2024-07-30 | 江苏省沙钢钢铁研究院有限公司 | Long-flow groove baking device and baking method for vacuum induction furnace |
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