CN108247027B - Ferroalloy continuous casting machine - Google Patents
Ferroalloy continuous casting machine Download PDFInfo
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- CN108247027B CN108247027B CN201810283250.9A CN201810283250A CN108247027B CN 108247027 B CN108247027 B CN 108247027B CN 201810283250 A CN201810283250 A CN 201810283250A CN 108247027 B CN108247027 B CN 108247027B
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- guide rail
- star wheel
- rail
- head
- tail
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- 229910001021 Ferroalloy Inorganic materials 0.000 title claims abstract description 18
- 238000009749 continuous casting Methods 0.000 title claims description 7
- 230000007704 transition Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 49
- 238000005266 casting Methods 0.000 abstract description 46
- 229910052742 iron Inorganic materials 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003546 flue gas Substances 0.000 abstract description 7
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910000640 Fe alloy Inorganic materials 0.000 description 3
- 229910000914 Mn alloy Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229910000604 Ferrochrome Inorganic materials 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- 229910000863 Ferronickel Inorganic materials 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 229910000720 Silicomanganese Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- PYLLWONICXJARP-UHFFFAOYSA-N manganese silicon Chemical compound [Si].[Mn] PYLLWONICXJARP-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D9/00—Machines or plants for casting ingots
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a continuous ferroalloy casting machine which is applied to the field of ferroalloy production facilities and comprises a frame, a head star wheel, a head bent rail, an upper guide rail, a tail bent rail, a tail star wheel and a lower guide rail, wherein the head star wheel, the head bent rail, the upper guide rail, the tail bent rail, the tail star wheel and the lower guide rail are sequentially arranged on the frame in a ring-shaped sealing manner; a plurality of independent trolley bodies are arranged on the guide rail; the trolley body comprises a flat ingot mould with upper and lower surfaces which are symmetrically recessed inwards, a transition piece, a shaft sleeve and wheels. The invention aims to overcome the defects of the traditional pit casting, cast iron ingot mould casting and plate-chain casting machine forming modes, and has the advantages of better modes. The method has the advantages of high yield, high quality, low labor intensity, multi-variety casting, convenient centralized treatment of flue gas, small occupied area, convenient maintenance, large die-to-iron ratio, difficult burning of ingot dies and the like.
Description
Technical Field
The invention belongs to the field of ferroalloy production facilities, and particularly relates to a ferroalloy continuous casting machine.
Background
The traditional ferroalloy casting and forming modes mainly comprise three modes:
1. pit casting: the method has the advantages of large one-time treatment capacity and high casting speed; the defects are large occupied area, poor separation of slag in iron and poor quality; the iron needs to be crushed by a large amount of manual tools in the later period, the labor intensity is high, the crushing rate is high, and the dust is thrown seriously; the variety capable of casting is limited, and some products cannot be cast in a pit due to the quality requirement; the field is large, the smoke and steam discharged by an unorganized way are large, the investment of dust removing equipment is extremely large, and the effect is not ideal; under the serious social situation of pursuing lean management and environmental protection, the method faces elimination.
2. Casting of cast iron ingot mould: the method has the advantages of good product quality; the defects are that the single ingot mould has small yield, with the enlargement of the ferroalloy submerged arc furnace, a large number of ingot moulds are needed for one tapping, and the occupied area is large; most ingot mould casting requires the ladle to move back and forth, and the flue gas during casting cannot be treated.
3. Plate-chain pig machine: the method has the advantages that the finished product does not need to be broken, the production line is short, and the production continuity is good; fixing point casting during iron casting, and treating flue gas well; the defects are that the traditional plate-chain casting machine has small yield, along with the large-scale of the ferroalloy submerged arc furnace, more than 30 tons of molten iron is required to be treated at one time, and the traditional pig iron machine has difficulty; meanwhile, the number of movable parts is too large, the stress of the plate links is large, the parts are difficult to maintain, and the equipment is difficult to enlarge; the ingot mould has small mould iron ratio, high temperature rise of the ingot mould, slow heat dissipation, short service life of the ingot mould and high cost of the product of reduced ton; the surface of the ingot mould is of a groove structure, steps between grooves are easy to burn, demoulding is difficult after burning, and the yield is low.
Therefore, there is a need to develop a continuous caster for ferroalloys that eliminates the above-mentioned drawbacks of the conventional cast-forming method for ferroalloys, and that includes the advantages of the above-mentioned method. The method has the advantages that the quality is good compared with pit casting, the labor intensity of manual crushing is reduced, various iron alloys can be cast, and flue gas is easy to concentrate; compared with cast iron ingot mould casting, the method has the advantages of small occupied ingot mould quantity and small occupied area; the opposite plate chain type cast iron machine has the advantages of high yield, convenient maintenance, large die-iron ratio and difficult burning loss of ingot dies.
Disclosure of Invention
In view of the above, the invention aims to provide a continuous iron alloy casting machine which realizes the overall improvement of casting performance compared with the traditional mode, and has the remarkable advantages of high yield, high quality, low labor intensity, multi-variety casting, convenient centralized treatment of flue gas, small occupied area, convenient maintenance, large die-to-iron ratio, difficult burning loss of ingot dies and the like.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a continuous iron alloy casting machine comprises a frame, a head star wheel, a head curved rail, an upper guide rail, a tail curved rail, a tail star wheel and a lower guide rail, wherein the head star wheel, the head curved rail, the upper guide rail, the tail curved rail, the tail star wheel and the lower guide rail are sequentially arranged on the frame in a ring shape in a sealing manner; the head bending rail, the upper guide rail, the tail bending rail and the lower guide rail are provided with a plurality of independent trolley bodies in a sliding manner; the trolley body comprises a flat ingot mould with the upper and lower surfaces being symmetrically recessed inwards, and a transition piece, a shaft sleeve and wheels which are sequentially connected to the two sides of the flat ingot mould from inside to outside; the surfaces of the head star wheel and the tail star wheel are provided with gear teeth, the head star wheel is driven by a motor, and the gear teeth of the head star wheel push the shaft sleeve to enable the wheels to move along the head curved rail, the upper guide rail, the tail curved rail and the lower guide rail, so that the trolley body is driven to circularly move on the rack; the upper guide rail is provided with a crushing device close to the upper part of the tail star wheel; the depth H of the concave of the flat ingot mould is 40-50 mm, and the width D is 800-1800 mm; the farthest distance L between two sides of the frame is 50-100 m.
Preferably, the device further comprises a pressing track arranged above the upper guide rail.
Preferably, the device also comprises a demolding and guniting pipeline arranged below the lower guide rail.
Preferably, the transition piece comprises a side plate and a T-bolt; one end of the sideboard is fixedly connected with the shaft sleeve, and the other end of the sideboard is connected with the flat ingot mould through a T-shaped bolt.
Preferably, the two sides of the trolley body are respectively provided with at least two wheels.
Preferably, the crushing device is a toothed roller crusher driven by a hydraulic press.
The invention has the beneficial effects that:
the invention eliminates the defects of the traditional pit casting, cast iron ingot mould casting and plate-chain pig casting machine forming modes, and has the advantages of better modes. The method has the advantages of high yield, high quality, low labor intensity, multi-variety casting, convenient centralized treatment of flue gas, small occupied area, convenient maintenance, large die-to-iron ratio, difficult burning of ingot dies and the like.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of A-A of FIG. 1;
FIG. 3 is a side view of a trolley body monomer;
FIG. 4 is an assembled front view of the trolley body unit;
fig. 5 is an assembled top view of the trolley body unit.
The figures are marked as follows: the device comprises a frame 1, a head star wheel 2, a head curved rail 3, an upper guide rail 4, a tail curved rail 5, a tail star wheel 6, a lower guide rail 7, a trolley body 8, a flat ingot mould 81, a transition piece 82, a shaft sleeve 83, wheels 84, a sideboard 821, T-shaped bolts 822, gear teeth 9, a motor 10, a crushing device 11, a compaction rail 12, a demoulding and guniting pipeline 13 and a guide chute 14.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
A ferroalloy continuous casting machine comprises a frame 1, a head star wheel 2, a head bent rail 3, an upper guide rail 4, a tail bent rail 5, a tail star wheel 6 and a lower guide rail 7 which are sequentially arranged on the frame in a ring shape in a sealing manner, wherein the sealing ring shape forms a circulating casting line; the head bending rail 3, the upper guide rail 4, the tail bending rail 5 and the lower guide rail 7 are provided with a plurality of independent trolley bodies 8 in a sliding manner; the trolley body 8 comprises a flat ingot mould 81 with both upper and lower surfaces symmetrically recessed inwards, and a transition piece 82, a shaft sleeve 83 and wheels 84 which are sequentially connected to both sides of the flat ingot mould 81 from inside to outside; the transition piece 82 includes a side plate 821 and a T-bolt 822; one end of the side plate 821 is fixedly connected with the shaft sleeve 83, and the other end is connected with the flat ingot mould 81 through a T-shaped bolt 822; the surfaces of the head star wheel 2 and the tail star wheel 6 are provided with gear teeth 9, the head star wheel 2 is driven by a motor 10, and the gear teeth 9 of the head star wheel are pushed into a shaft sleeve 83, so that wheels 84 move along the head curved rail 3, the upper guide rail 4, the tail curved rail 5 and the lower guide rail 7, and the trolley body 8 is driven to circularly move on the rack 1; the upper guide rail 4 is provided with a crushing device 11 above the star wheel at the tail part; the depth H of the concave of the flat ingot mould 81 is 40-50 mm, and the width D is 800-1800 mm; the farthest distance L between two sides of the frame 1 is 50 m-100 m.
The working principle is as follows: molten iron falls from a pouring spout (not shown) near the position of the head star wheel exit and flows into the flat ingot mold 81. The motor 10 drives the head star wheel 2 to rotate, the gear teeth 9 of the head star wheel 2 push the shaft sleeve 83 to enable the wheels 84 to move along the guide rails, and then the trolley body 8 is driven to circularly move on the frame 1, wherein the trolley body 8 driven by the driving force pushes the previous trolley body 8 to move, after moving to the crushing device 11, the crushing device 11 crushes iron blocks in the flat ingot mold 81, and the iron blocks fall into the guide chute 14 at the tail star wheel 6 to be conveyed away. The trolley body 8 is returned to the head star wheel 2 by the lower guide rail 7 and enters circulation.
In the embodiment, the casting is finished in the flat ingot mould 81 of the trolley body 8 in contrast to pit casting, so that the quality is better; the crushing device 11 is arranged, so that the labor intensity of manual crushing can be reduced; the casting chute is concentrated at the head star wheel 2 for casting molten iron, and flue gas is easy to concentrate; experiments prove that the trolley body 8 of the embodiment can be used for casting high-silicon-manganese alloy, common silicon-manganese alloy, high-carbon ferromanganese alloy and high-carbon ferrochrome alloy by adjusting the concave depth H and the width D of the flat ingot mould 81, and the high-silicon-manganese alloy and the high-carbon ferrochrome alloy belong to varieties with higher temperature and harder demoulding, so that the casting of the ferronickel alloy can be deduced to be supported, and the advantage of casting various ferroalloys is also provided.
In this embodiment, all the trolley bodies 8 are circularly arranged on the frame 1, so that the occupied area is small, and the trolley bodies 8 are always rapidly recycled, so that the number of occupied ingot molds is small compared with the arrangement of the ingot molds in the casting of the cast iron ingot molds.
Compared with a plate-chain pig machine, the embodiment has larger yield, particularly can process more than 30 tons of molten iron (one furnace iron) at one time, and the deduction process is as follows: when the width D of the flat ingot mold is 800mm, the recess depth H (casting thickness) is 40mm, the farthest distance L (pig machine length) between two sides of the frame 1 is 50m, 2 turns (industry defines the two-turn continuous casting machine as the amount of one-time treatment, the ingot mold temperature will be high after more than two turns continuous casting machine, and demoulding is not easy), the density of the cast silicomanganese alloy is 5.5g/cm3, and calculated, 0.8x0.04x50x2x2x5.5=35.2 tons. Of course, the disposable throughput can break through 100 tons by increasing D, H, L and other parameters.
In the embodiment, the trolley body is independently erected on the upper guide rail and the lower guide rail, and the trolley body is not connected with the flat ingot mould, so that the trolley body and the flat ingot mould can be taken down and replaced without any tool for disassembling the fasteners, and the maintenance is convenient. Moreover, as the upper surface and the lower surface of the flat ingot mould are symmetrically recessed inwards, the two surfaces of the flat ingot mould can be alternately used, the number of usable ingot moulds is doubled in an intangible way, each ingot mould can be used twice, and the production cost is reduced.
Compared with the groove structure on the surface of the ingot mould in the plate-chain pig machine, the problem of step burning loss between grooves cannot exist in the flat plate ingot mould, so that demoulding is easier, and the yield is high. Meanwhile, the ingot mould of the traditional casting machine is provided with grooves, after the iron powder is scattered, the volume of the concave parts is reduced, and the convex parts, namely the step molten iron between the grooves, are too thin to be melted, so that the convex parts are more prone to producing iron powder particles (byproducts). The structure of the flat ingot mould in the application can well avoid or lighten the situation, even if iron powder particles are generated, the structure is very little, the granularity of the iron powder is also usually less than 10mm, the iron powder can be collected and paved on the flat ingot mould from the head star wheel, molten iron is completely melted and consumed again during casting, demoulding is more favorable, no iron powder byproduct is generated in the embodiment, the iron powder is self-produced, a large amount of iron powder is generated by the traditional chain plate type casting machine, and the iron powder is inconvenient to pave because of the groove structure on the surface of the ingot mould, so that the groove is easy to pave, and molten iron can not go.
The ingot mould of the traditional chain plate type casting machine is fixed on a chain for structural reasons and advances by the pulling force of the chain. If the ingot mould is increased (and the ingot mould ratio is increased), if the width is increased, a cross beam is added between the chains at two sides to ensure the synchronization of the movement. As the ingot mould is enlarged, the chain and the cross beam are increased/increased, the complexity of the equipment is increased, and the reliability is reduced. The die-to-iron mass ratio of the conventional chain plate casting machine is not higher than 5:1. In the embodiment, the flat ingot mould is a trolley type, the trolley body is a transmission body and an independent structural member, and the mould-iron ratio can reach 15:1. The mould iron ratio is increased, after the molten iron is treated at one time, the temperature of the ingot mould is low, the demoulding is easier, and no additional cooling treatment is needed. The chain plate type casting machine is characterized in that the ingot mould is heated up and cooled down by adopting a water spraying method due to small mould iron ratio, and the service life of the ingot mould is shortened sharply due to rapid cooling and rapid heating.
All ingot molds of the traditional plate-chain casting machine are arranged on a plate chain, the plate chain is driven by dragging of a tail star wheel, and the plate chain drives the ingot molds to move by force transmission. The whole structure of the casting machine comprises plate links, chain wheels, wheel shafts and the like, parts are complex and numerous, abrasion parts are numerous, and equipment is not easy to enlarge. The embodiment is changed into back driving, a casting line is formed by a plurality of single independent trolley bodies in a ring-shaped manner on a track, the head star wheel is used as main driving, the head star wheel is pushed forward from back, the force is transferred to two end faces of the single trolley body, the combination is tight, the stress area is large, the transmission effect is good, the equipment is easy to be large, the pushing type relative dragging type acceptance is more uniform, and the loss of parts is smaller.
In the whole, the casting machine disclosed by the embodiment eliminates a plurality of defects of the traditional ferroalloy casting forming mode, has brand-new structural design and reasonable parameter selection, has better advantages, and has good use value and application prospect.
Further, the embodiment further comprises a pressing track 12 arranged above the upper guide rail 4, and the design can avoid the upward tilting of the trolley body due to uneven extrusion force transmission in the process of being pushed forward.
Further, the embodiment comprises a demoulding and guniting pipeline 13 arranged below the lower guide rail 7, and the demoulding and guniting pipeline sprays a demoulding agent on the blank-back flat ingot mould, so that demoulding after the next pouring is facilitated, and the product forming quality is improved.
Further, in this embodiment, at least two wheels 84 are provided on both sides of the trolley body 8, so that the trolley body can run more stably.
Further, in this embodiment, the crushing device 11 is a toothed roller crusher driven by a hydraulic press, so that the hydraulic driving power is more sufficient, and the crushing effect is better due to toothed roller crushing.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (4)
1. A continuous casting machine for ferroalloy, characterized in that: comprises a frame, a head star wheel, a head curved rail, an upper guide rail, a tail curved rail, a tail star wheel and a lower guide rail which are sequentially arranged on the frame in a ring shape in a sealing way; the head bending rail, the upper guide rail, the tail bending rail and the lower guide rail are provided with a plurality of independent trolley bodies in a sliding manner; the trolley body comprises a flat ingot mould with the upper and lower surfaces being symmetrically recessed inwards, and a transition piece, a shaft sleeve and wheels which are sequentially connected to the two sides of the flat ingot mould from inside to outside; the surfaces of the head star wheel and the tail star wheel are provided with gear teeth, the head star wheel is driven by a motor, and the gear teeth of the head star wheel push the shaft sleeve to enable the wheels to move along the head curved rail, the upper guide rail, the tail curved rail and the lower guide rail, so that the trolley body is driven to circularly move on the rack; the upper guide rail is provided with a crushing device close to the upper part of the tail star wheel; the depth H of the concave of the flat ingot mould is 40-50 mm, and the width D is 800-1800 mm; the farthest distance L between two sides of the frame is 50 m-100 m;
the device also comprises a compression rail arranged above the upper guide rail;
the device also comprises a demoulding and guniting pipeline arranged below the lower guide rail.
2. The continuous caster for ferroalloys according to claim 1, wherein: the transition piece comprises a side plate and a T-shaped bolt; one end of the sideboard is fixedly connected with the shaft sleeve, and the other end of the sideboard is connected with the flat ingot mould through a T-shaped bolt.
3. The continuous caster for ferroalloys according to claim 1, wherein: two sides of the trolley body are respectively provided with at least two wheels.
4. The continuous caster for ferroalloys according to claim 1, wherein: the crushing device is a toothed roller crusher driven by a hydraulic machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810283250.9A CN108247027B (en) | 2018-04-02 | 2018-04-02 | Ferroalloy continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810283250.9A CN108247027B (en) | 2018-04-02 | 2018-04-02 | Ferroalloy continuous casting machine |
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| Publication Number | Publication Date |
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| CN108247027A CN108247027A (en) | 2018-07-06 |
| CN108247027B true CN108247027B (en) | 2024-02-23 |
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| CN201810283250.9A Active CN108247027B (en) | 2018-04-02 | 2018-04-02 | Ferroalloy continuous casting machine |
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| CN111250682B (en) * | 2020-03-09 | 2022-03-08 | 秦皇岛博硕光电设备股份有限公司 | Molten metal casting trolley, trolley body and ingot mould used by same |
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| CN112743051A (en) * | 2020-12-30 | 2021-05-04 | 宁夏海盛实业有限公司 | Continuous casting machine for casting and molding ferroalloy production |
| CN115090839A (en) * | 2022-06-27 | 2022-09-23 | 沧州中铁装备制造材料有限公司 | Pig casting machine convenient for demolding and working method thereof |
| CN115055652B (en) * | 2022-06-30 | 2023-03-24 | 北京易得优科技有限责任公司 | Fine casting method for ferroalloy |
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