CN211661041U - Alloy steel ingot pouring cap opening protection device - Google Patents
Alloy steel ingot pouring cap opening protection device Download PDFInfo
- Publication number
- CN211661041U CN211661041U CN201922098029.9U CN201922098029U CN211661041U CN 211661041 U CN211661041 U CN 211661041U CN 201922098029 U CN201922098029 U CN 201922098029U CN 211661041 U CN211661041 U CN 211661041U
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- CN
- China
- Prior art keywords
- steel ingot
- mold
- ingot pouring
- metal conductive
- ring
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- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 59
- 239000010959 steel Substances 0.000 claims abstract description 59
- 239000002184 metal Substances 0.000 claims abstract description 18
- 230000001681 protective Effects 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000005266 casting Methods 0.000 claims description 26
- 238000001816 cooling Methods 0.000 abstract description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000004927 clay Substances 0.000 description 6
- 229910052570 clay Inorganic materials 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- WUKWITHWXAAZEY-UHFFFAOYSA-L Calcium fluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 4
- 229910001634 calcium fluoride Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052593 corundum Inorganic materials 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 description 4
- 210000003491 Skin Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 206010039509 Scab Diseases 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses an alloy steel ingot pouring cap opening protection device, which relates to a mold, comprising a mold for steel ingot pouring, wherein the top of the steel ingot pouring mold is fixedly provided with an insulating refractory mud ring which is coaxially distributed with the steel ingot pouring mold and has a height of 20-30cm, the inner wall of the insulating refractory mud ring is embedded with a metal conductive ring with a height of 5-8cm, the inner side wall of the metal conductive ring is exposed at the outer side of the insulating refractory mud ring, the metal conductive ring is connected with the anode of an external power supply, the bottom end of the metal conductive ring is 10-15cm away from the top end of the steel ingot pouring mold, the cathode of the external power supply is connected with the bottom of the steel ingot pouring mold, the top end of the steel ingot pouring mold is grounded, the bottom end of the steel ingot pouring mold is provided with a liquid injection hole, the bottom of the inner cavity of the steel ingot pouring mold is paved with a protective electroslag layer which is composed of Ca, the thickness of the protective electroslag layer is 15-25 cm; the utility model discloses utilize the protection electroslag layer can heat the molten steel top effectively, avoided the too fast drawback of molten steel upper portion cooling.
Description
Technical Field
The utility model relates to an anchor clamps especially relate to one kind and can lift by crane the anchor clamps that press from both sides to the outage utmost point that is in the electric arc furnace.
Background
Pouring is the final operation in the steel production process and has a great influence on the quality of the product. The solidification conditions of the steel ingot in the ingot mould determine the crystalline structure of the steel ingot and also the chemical composition and the homogeneity of the structure. In order to improve the quality of ingot steel ingots, the cast ingots have scabs, heavy skin, longitudinal cracks and transverse cracks on the surface of the ingot steel ingots, residual shrinkage cavities, bubbles under the skin, looseness, segregation and the like due to improper operation or improper control of injection speed and casting temperature in the ingot casting process. The material consumption rate of the subsequent processing of the steel ingot is reduced. Particularly, in the pouring process of the down-pouring method, molten steel rises from bottom to top in a steel die, the molten steel on the upper layer dissipates heat quickly, and the penetration and oxidation of inclusions are mainly concentrated on the upper layer of the steel ingot, so that the steel ingot of the alloy steel is difficult to eliminate in the subsequent forging and heat treatment processes, and some parts of the steel ingot cannot be effectively utilized, thereby causing the waste of resources.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide an alloy steel ingot pouring cap mouth protection device to solve prior art in the molten steel heat dissipation of the last time lead to the technical problem of unable effective utilization soon.
The utility model discloses a realize through following technical scheme:
the utility model provides a protective device for a casting cap opening of an alloy steel ingot, which comprises a mould for casting the steel ingot, the top of the steel ingot casting mould is fixedly provided with an insulating refractory mud ring which is coaxially distributed with the steel ingot casting mould and has the height of 20-30cm, a metal conductive ring with the height of 5-8cm is embedded on the inner wall of the insulating refractory clay ring, the inner side wall of the metal conductive ring is exposed at the outer side of the insulating refractory clay ring, the metal conductive ring is connected with the anode of an external power supply, the bottom end of the power supply is 10-15cm away from the top end of the mold for steel ingot casting, the negative pole of the external power supply is connected with the bottom of the mold for steel ingot casting and grounded, the bottom end of the mold for casting the steel ingot is provided with a liquid injection hole, the bottom of the inner cavity of the mold for casting the steel ingot is paved with a protective electroslag layer composed of CaF2, CaO, Al2O3 and graphite, and the thickness of the protective electroslag layer is 15-25 cm.
Furthermore, the sizes of CaF2, CaO, Al2O3 and graphite in the protective slag layer are not more than 100 meshes.
The utility model provides an alloy steel ingot pouring cap mouth protection device, compared with the prior art, the beneficial effects of the utility model embody:
the utility model discloses simple structure utilizes metal conductive ring and external power source intercommunication, treats that protection electric slag layer come-up can make the circuit intercommunication to its interior back to finally make protection electric slag layer constitute a big resistance, as the heat source and then can heat the molten steel top effectively, realized playing the heat preservation effect simultaneously heating the molten steel upper strata, make steel ingot cooling rate trend unanimous, ensured the quality of steel ingot.
Drawings
FIG. 1 is a schematic cross-sectional view of an alloy ingot casting cap opening protection device provided by an embodiment.
FIG. 2 is a schematic structural diagram of an alloy ingot casting cap opening protection device provided by the embodiment.
In the figure: 1. a mold for steel ingot casting; 2. insulating refractory clay rings; 3. a metal conductive ring; 4. a liquid injection hole; 5. and protecting the electroslag layer.
Detailed Description
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions of the present application will be clearly and completely described below in conjunction with the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all 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 application.
It is noted that the term "comprising" in the description and claims of the present application is intended to cover a non-exclusive inclusion, e.g. a method comprising a list of steps is not necessarily limited to those steps explicitly listed, but may include other steps not explicitly listed or inherent to such methods. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to examples.
Examples
With reference to fig. 1 and fig. 2, the present embodiment provides an alloy steel ingot casting cap opening protection device, including a steel ingot casting mold 1, where the top of the steel ingot casting mold is fixedly installed with an insulating refractory clay ring 2 that is coaxially distributed with the steel ingot casting mold and has a height of 20-30cm, a metal conductive ring 3 that has a height of 5-8cm is embedded in an inner wall of the insulating refractory clay ring 2, an inner side wall of the metal conductive ring 3 is exposed outside the insulating refractory clay ring 2, the metal conductive ring 3 is connected with an anode of an external power supply, a bottom end of the metal conductive ring is 3-5cm away from a top end of the steel ingot casting mold 1, a cathode of the external power supply is connected with the bottom of the steel ingot casting mold 1 and is grounded, a liquid injection hole 4 is formed in the bottom end of the steel ingot casting mold 1, a protective electroslag layer 5 composed of CaF2, CaO, Al2O3 and graphite is laid at the bottom of an, the thickness of the protective electroslag layer 5 is 15-25 cm.
In particular, the sizes of CaF2, CaO, Al2O3 and graphite in the protective slag layer 5 are not more than 100 meshes.
The working principle is as follows:
in the process of adopting equipment to carry out pouring method pouring process through liquid injection hole 4, because the density of protection electroslag layer 5 is less than the density of molten steel, in the process of molten steel pouring, protection electroslag layer 5 constantly floats up, when floating up to the top and stop molten steel pouring after the parallel and level of insulating fire-resistant mud ring 2 upper edge, metal conductive ring 3 makes the circuit form the return circuit with the help of protection electroslag layer 5 after external power source opens simultaneously, in this return circuit, protection electroslag layer 5 is equivalent to a big resistance, form the heat source, produce a large amount of heats at its in-process of operation, thereby can heat or heat up the molten steel of its lower part effectively.
After heating for a certain time, after the temperature of the upper layer of the molten steel reaches the temperature of the middle section of the cast ingot, the external power supply is disconnected, the steel ingot starts to be cooled, and in the cooling process, the protective electroslag on the upper layer of the steel ingot plays a role in heat preservation, so that the cooling rate of the whole steel ingot tends to be consistent.
And after cooling, removing the insulating refractory mud ring at the top of the steel mould, removing the electroslag on the steel ingot, demoulding and finishing pouring.
The utility model discloses in adopt this kind of concurrent heating mode, the electroslag still needs to play the effect that protection pouring process can effectively prevent molten steel oxidation and debris infiltration, through to molten steel auxiliary heating, makes molten steel upper temperature rise again, adjusts its mobility, plays and restores scab heavy skin and indulge, the craze, eliminate the segregation phenomenon that inside residual shrinkage cavity and internal stress produced, the required device of this method is simple, easy operation, low in production cost, this technical practicality is strong, there is fine application prospect.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
The present invention is not limited to the above description of the embodiments, and those skilled in the art should be able to make modifications and alterations without creative work on the basis of the present invention.
Claims (1)
1. A protective device for a casting cap opening of an alloy steel ingot comprises a mold (1) for steel ingot casting, and is characterized in that an insulating refractory mud ring (2) which is coaxially distributed with the mold and has a height of 20-30cm is fixedly installed at the top of the mold for steel ingot casting, a metal conductive ring (3) with a height of 5-8cm is embedded in the inner wall of the insulating refractory mud ring (2), the inner side wall of the metal conductive ring (3) is exposed at the outer side of the insulating refractory mud ring (2), the metal conductive ring (3) is connected with the anode of an external power supply, the bottom end of the metal conductive ring is 15-25cm away from the top end of the mold (1) for steel ingot casting, the cathode of the external power supply is connected with the bottom of the mold (1) for steel ingot casting and is grounded, a liquid injection hole (4) is formed at the bottom end of the mold (1) for steel ingot casting, a protective electroslag layer (5) is laid, the thickness of the protective electroslag layer (5) is 15-25 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922098029.9U CN211661041U (en) | 2019-11-29 | 2019-11-29 | Alloy steel ingot pouring cap opening protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922098029.9U CN211661041U (en) | 2019-11-29 | 2019-11-29 | Alloy steel ingot pouring cap opening protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211661041U true CN211661041U (en) | 2020-10-13 |
Family
ID=72732811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922098029.9U Active CN211661041U (en) | 2019-11-29 | 2019-11-29 | Alloy steel ingot pouring cap opening protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211661041U (en) |
-
2019
- 2019-11-29 CN CN201922098029.9U patent/CN211661041U/en active Active
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