CN112239799A - Core-spun yarn feeding device for spheroidizing treatment - Google Patents
Core-spun yarn feeding device for spheroidizing treatment Download PDFInfo
- Publication number
- CN112239799A CN112239799A CN202011393366.1A CN202011393366A CN112239799A CN 112239799 A CN112239799 A CN 112239799A CN 202011393366 A CN202011393366 A CN 202011393366A CN 112239799 A CN112239799 A CN 112239799A
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- Prior art keywords
- core
- ladle
- spun yarn
- wire feeding
- feeding device
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- 239000000779 smoke Substances 0.000 claims abstract description 34
- 239000000428 dust Substances 0.000 claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 10
- 239000000110 cooling liquid Substances 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 15
- 229910052742 iron Inorganic materials 0.000 abstract description 10
- 229910045601 alloy Inorganic materials 0.000 abstract description 9
- 239000000956 alloy Substances 0.000 abstract description 9
- 238000009834 vaporization Methods 0.000 abstract description 8
- 230000008016 vaporization Effects 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 18
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910001141 Ductile iron Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
A core-spun yarn feeding device for spheroidizing treatment comprises a ladle cover, a smoke dust removing device, a yarn feeding machine and a supporting platform, wherein a lifting driver is driven to be matched with a ladle to form a closed space, and a through smoke dust through hole is formed in the ladle cover; the smoke dust removing device is arranged on the gas collecting hood between the ladle cover and the supporting platform; wire drive feed unit is equipped with the pipe including the casing that runs through supporting platform and smoke and dust removal device in the casing, is equipped with the conveying roller of fixing at shells inner wall relatively along the lower extreme of pipe, and the conveying roller is opposite direction and rotates. The invention can form the same vertical line of the core-spun yarn and the downward traction force, ensure the core-spun yarn to enter the molten iron of the steel ladle along the vertical direction, make the core-spun yarn form the stable region at the bottom of the steel ladle, improve the spheroidization effect, can also effectively cool the core-spun yarn entering the steel ladle, reduce the impact of hot gas in the steel ladle, reduce the vaporization of partial alloy at the outer layer of the core-spun yarn, help the core-spun yarn form the stable region at the bottom of the steel ladle, further improve the spheroidization effect.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to a cored wire feeding device for spheroidization.
Background
Spheroidization is a main link for producing as-cast nodular cast iron, the spheroidization effect is directly related to the quality of nodular cast iron castings, and a ladle wire feeding technology is a novel ladle refining technology which is started to rise in the last 70 th century and is characterized in that easily-oxidizable or light alloy is made into a cored wire, and then the cored wire is fed into the deep part of steel ladle molten steel through a wire feeder system so as to carry out refining treatment on the molten steel, such as efficient deoxidation, alloying, nonmetal inclusion denaturation and the like, and the spheroidization effect can be greatly improved.
However, when the existing wire feeding device feeds the core-spun wire into the steel ladle, because the core-spun wire is disturbed in the guide pipe and is influenced by the buoyancy of the molten iron, the core-spun wire can not vertically enter the molten iron, so that the core-spun wire has an incident angle with the vertical direction when entering the molten iron, when the depth of the molten iron is deeper, the influence of the incident angle is larger, and further the core-spun wire can not form a stable region at the bottom of the steel ladle, so that the effective rate of the alloy is unstable, and poor spheroidization can be caused in serious cases.
Disclosure of Invention
In order to solve the problems, the invention provides a core-spun yarn feeding device for spheroidization, which can form upward and downward traction force on the same vertical yarn for the core-spun yarn, ensure that the core-spun yarn enters molten iron of a steel ladle along the vertical direction, ensure that the core-spun yarn forms a stable region at the bottom of the steel ladle, improve the spheroidization effect, effectively cool the core-spun yarn entering the steel ladle, reduce the impact of hot gas in the steel ladle, reduce the vaporization of partial alloy at the outer layer of the core-spun yarn, contribute to the formation of the stable region of the core-spun yarn at the bottom of the steel ladle, and further improve the spheroidization effect.
The technical scheme adopted by the invention to solve the technical problems is as follows:
a core-spun yarn feeding device for spheroidizing comprises a ladle cover, a smoke dust removing device, a yarn feeding machine and a supporting platform, wherein the ladle cover is connected below the supporting platform in a hanging manner and is driven by a lifting driving machine to be matched with a steel ladle to form a closed space, and a through smoke dust through hole is formed in the ladle cover;
the smoke dust removing device comprises a gas collecting hood arranged between the ladle cover and the supporting platform, the gas collecting hood is communicated with the closed space through the smoke dust through hole, and an exhaust pipe used for communicating with an air exhaust device is arranged on the gas collecting hood;
the wire feeding device comprises a circular shell which penetrates through the supporting platform and the gas collecting cover in sequence and extends into the smoke dust through hole, a truncated cone-shaped guide pipe is arranged at an inlet in the shell, conveying rollers fixed on the inner wall of the shell are oppositely arranged along the outer edge of the diameter of the lower end of the guide pipe, and the conveying rollers rotate in opposite directions;
the wire feeder is fixed on the supporting platform and outputs core-spun yarns, and the core-spun yarns sequentially penetrate through the guide pipe, the shell and the smoke through holes to enter the steel ladle.
Furthermore, the shell is sequentially provided with a heat insulation layer and a cooling cavity from outside to inside, and the top of the shell is provided with a water inlet pipe and a water outlet pipe which are communicated with the cooling cavity.
Furthermore, a partition plate is arranged in the cooling cavity, the partition plate divides the cooling cavity into two spaces, and a water through hole is formed in the bottom of the partition plate and communicates the two spaces.
Further, an air inlet pipe is arranged at the top of the conduit.
Furthermore, the air inlet pipes are arranged in a plurality of numbers and are uniformly distributed at the top of the guide pipe.
Further, the conveying rollers are distributed in a plurality at equal intervals along the vertical direction of the shell.
Furthermore, the bottom of the smoke dust through hole is provided with a baffle which is concave upwards, the center of the baffle is provided with a threading hole for the core-spun yarn to pass through, and the baffle is uniformly provided with meshes for ventilation.
Furthermore, a cooling pipe is arranged in the gas collecting hood and surrounds the wire feeding device, and a cooling liquid inlet pipe and a cooling liquid outlet pipe extending out of the gas collecting hood are arranged on the cooling pipe.
Further, in the fifth step, the flexible wear-resistant material is rubber or polyurethane.
The invention has the beneficial effects that:
1. the circular truncated cone conduit and the plurality of groups of conveying rollers are arranged in the wire feeding device, so that downward traction force for the cored wire is formed, the traction forces are positioned on the same vertical wire, the disturbance of the cored wire entering a steel ladle can be effectively reduced, the influence of molten iron buoyancy on the cored wire can be reduced, the cored wire is ensured to vertically enter molten iron, a stable area is formed at the bottom of the steel ladle by the cored wire, and the spheroidizing effect is improved.
2. According to the invention, the cooling cavity and the heat-insulating layer are arranged in the wire feeding device, so that the cored wire in the shell is cooled, and the impact of hot gas in the steel ladle on the cored wire is reduced, thereby reducing the vaporization of the alloy on the outer layer of the cored wire, facilitating the formation of a stable region of the cored wire at the bottom of the steel ladle, and further improving the spheroidization effect.
3. According to the invention, the air inlet pipe is arranged in the wire feeding device, the inert gas is introduced, and when the gas is discharged from the lower end of the wire feeding device, reverse acting force can be applied to splashing, smoke dust, dust and the like generated in spheroidization treatment, so that the amount of splashing, smoke dust, dust and the like entering the shell is reduced, the number of heat sources for heating the core-spun wire is reduced, further the vaporization of the outer layer alloy of the core-spun wire is further reduced, the core-spun wire is beneficial to forming a stable region at the bottom of the ladle, and the spheroidization effect is further improved.
Description of the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a wire feeder;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic view of the structure of the bag cover;
FIG. 5 is a schematic structural view of a baffle;
FIG. 6 is a schematic structural diagram of a soot removing device.
The labels in the figure are: 1. the lifting driving machine comprises a lifting driving machine, 2, a wire feeding machine, 3, a steel wire, 4, a smoke dust removing device, 401, a cooling liquid inlet pipe, 402, a cooling liquid outlet pipe, 403, a cooling pipe, 404, a gas collecting hood, 405, an exhaust pipe, 5, a wire feeding device, 501, a water inlet pipe, 502, an air inlet pipe, 503, a water outlet pipe, 504, a guide pipe, 505, a cooling cavity, 506, a conveying roller, 507, an air cavity, 508, a heat insulation layer, 509, a shell, 510, a partition board, 6, a covering cover, 601, a smoke dust through hole, 602, a baffle, 603, a threading hole, 604, meshes, 7, a supporting platform, 8, a core-spun yarn, 9.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1 to 6, a core-spun yarn feeding device for spheroidization comprises a ladle cover 6, a smoke dust removing device 4, a wire feeding device 5, a wire feeding machine 2 and a supporting platform 7, wherein the ladle cover 6 is connected below the supporting platform 7 in a hanging manner, and is driven by a lifting driving machine 1 to be matched with a ladle 9 to form a closed space, the ladle cover 6 is provided with a smoke dust through hole 601 which penetrates through the ladle cover, in the specific implementation, the ladle cover 6 can be suspended below the supporting platform 7 through a steel wire 3 or a chain, the steel wire 3 or the chain is connected with the lifting driving machine 1 arranged outside the supporting platform 7, the ladle cover 6 is driven by the lifting driving machine 1 to move up and down, and after the ladle 9 is conveyed in place, the ladle cover 6 can be covered on the ladle 9.
The smoke dust removing device 4 comprises a gas collecting hood 404 arranged between the ladle cover 6 and the supporting platform 7, the gas collecting hood 404 is communicated with the closed space through the smoke dust through hole 601, an exhaust pipe 405 used for being communicated with an air exhaust device is arranged on the gas collecting hood 404, and during specific implementation, the exhaust pipe 405 can be connected with equipment such as an exhaust fan or a vacuum pump, so that negative pressure is formed in the gas collecting hood 404, and smoke dust generated in the ladle 9 can be quickly exhausted.
The wire feeder 2 is fixed on the supporting platform 7, the wire feeder 2 outputs a core-spun wire 8, and the core-spun wire 8 sequentially penetrates through the guide pipe 504, the shell 509 and the smoke through hole 601 to enter the steel ladle 9.
During specific implementation, the conveying rollers 506 are distributed in a plurality of equal intervals in the vertical direction of the shell 509, and the intervals between the conveying rollers 506 can be set to be consistent with the size of the cored wire 8, when the conveying rollers 506 move, downward force of the cored wire 8 is pulled on the same vertical wire formed in the shell 509, so that the cored wire 8 can be guaranteed to move in the vertical downward direction, when the cored wire 8 downwards enters the steel ladle 9, due to the existence of downward traction force, a plurality of traction forces are located on the same vertical wire, the disturbance of the cored wire 8 entering the steel ladle 9 can be effectively reduced, the influence of buoyancy molten iron on the cored wire 8 can be reduced, the vertical entering of the cored wire 8 into molten iron is guaranteed, a stable area is formed at the bottom of the steel ladle 9 by the cored wire 8, and the spheroidization effect is improved.
Further, shell 509 is equipped with heat preservation 508 and cooling chamber 505 from the outside inwards in proper order, and heat preservation 508 can be the ceramic fibre of packing or apply paint high temperature resistant thermal-insulated insulation coating with a brush to reduce from the heat transfer of smoke through-hole 601 to the inside of shell 509, and the top of shell 509 is equipped with inlet tube 501 and outlet pipe 503 of intercommunication cooling chamber 505, can cool off the cored wire 8 in the shell 509 like this, in order to reduce the impact that the cored wire 8 received hot gas in the ladle 9, reduce the vaporization of 8 outer layer alloys of cored wire, help cored wire 8 to form stable region at the bottom of a bag of ladle 9, and then to improving balling effect.
During specific implementation, a partition plate 510 is arranged in the cooling cavity 505 and is fixed in a sealing manner along the vertical direction of the cooling cavity 505, namely the partition plate 510 divides the cooling cavity 505 into two spaces, a water through hole is formed in the bottom of the partition plate 510 and communicates the two spaces, so that cooling water enters from the water inlet pipe 501, passes through the space of one cooling cavity 505, enters into the other space through the water through hole and finally flows out from the water outlet pipe 503, and the cooling effect on the cored wire 8 can be greatly improved.
Further, the top of the conduit 504 is provided with a plurality of air inlet pipes 502, the plurality of air inlet pipes 502 are uniformly distributed on the top of the conduit 504, an air cavity 507 is formed between the conduit 504 and the inner wall of the shell 509, and can allow air to pass through, in the specific implementation, cooled inert gas can be introduced into the air inlet pipes 502, the inert gas can further cool the cored wire 8, and since the introduced inert gas is conveyed out from the bottom of the shell 509, reverse acting force can be applied to splashing, smoke dust, dust and the like generated in spheroidizing treatment during discharge, the quantity of the splashing, the smoke dust, the dust and the like entering the shell 509 is reduced, the influence of impurities on the cored wire 8 is reduced, the quantity of heat sources for heating the cored wire 8 is also indirectly reduced, thereby further reducing the vaporization of outer layer alloy of the cored wire 8, and being beneficial to forming a stable area of the cored wire 8 at the bottom of the ladle 9, further improving the spheroidization effect.
Furthermore, the bottom of the smoke through hole 601 is provided with a baffle 602 which is concave upwards, the center of the baffle 602 is provided with a threading hole 603 for the core-spun yarn 8 to pass through, the baffle 602 is uniformly provided with air-permeable meshes 604, and when splashes, smoke dust, dust and the like generated during spheroidization process touch the arc baffle 602, the core-spun yarn 8 is blocked by the arc baffle 602 and guided by arc flow, so that high-temperature impurities can be further reduced from entering the shell 509, the vaporization of outer layer alloy of the core-spun yarn 8 is further reduced, the core-spun yarn 8 is beneficial to forming a stable region at the bottom of the ladle 9, and the spheroidization effect is further improved.
Specifically, the gas collecting hood 404 may further include a cooling pipe 403 surrounding the wire feeding device 5, the cooling pipe 403 is provided with a cooling liquid inlet pipe 401 and a cooling liquid outlet pipe 402 extending out of the gas collecting hood 404, the cooling liquid is introduced into the cooling pipe 403, and the temperature of the outside of the wire feeding device 5 is reduced, so that the influence of high temperature on the inside of the housing 509 is further reduced, the vaporization of the outer layer alloy of the cored wire 8 is further reduced, which is beneficial to the formation of a stable region of the cored wire 8 at the bottom of the ladle 9, and further improves the spheroidization effect.
It should be noted that the above embodiments are only for illustrating the present invention, but the present invention is not limited to the above embodiments, and any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention fall within the protection scope of the present invention.
Claims (8)
1. A core-spun yarn feeding device for spheroidizing treatment comprises a ladle cover (6), a smoke dust removing device (4), a wire feeding device (5), a wire feeding machine (2) and a supporting platform (7), and is characterized in that the ladle cover (6) is connected below the supporting platform (7) in a hanging manner and is driven by a lifting driving machine (1) to be matched with a ladle (9) to form a closed space, and a penetrating smoke dust through hole (601) is formed in the ladle cover (6);
the smoke dust removing device (4) comprises a gas collecting hood (404) arranged between the ladle cover (6) and the supporting platform (7), the gas collecting hood (404) is communicated with the closed space through the smoke dust through hole (601), and an exhaust pipe (405) used for communicating with air exhaust equipment is arranged on the gas collecting hood (404);
the wire feeding device (5) comprises a circular shell (509) which penetrates through the supporting platform (7) and the gas collecting cover (404) in sequence and extends into the smoke dust through hole (601), a truncated cone-shaped guide pipe (504) is arranged at an inlet in the shell (509), a conveying roller (506) fixed on the inner wall of the shell (509) is arranged along the outer edge of the diameter of the lower end of the guide pipe (504) in a relative mode, and the conveying roller (506) rotates in the opposite direction;
the wire feeding machine (2) is fixed on the supporting platform (7), the wire feeding machine (2) outputs core-spun wires (8), and the core-spun wires (8) sequentially penetrate through the guide pipe (504), the shell (509) and the smoke through holes (601) to enter the steel ladle (9).
2. A cored wire feeding device for spheroidization according to claim 1, wherein the shell (509) is provided with an insulating layer (508) and a cooling cavity (505) in sequence from outside to inside, and the top of the shell (509) is provided with a water inlet pipe (501) and a water outlet pipe (503) which are communicated with the cooling cavity (505).
3. A cored wire feeding apparatus for spheroidization according to claim 2, wherein a partition plate (510) is provided in the cooling chamber (505), the partition plate (510) divides the cooling chamber (505) into two spaces, and a water passage hole is provided in a bottom of the partition plate (510) and communicates the two spaces.
4. A core wire feeding device for spheroidizing according to claim 1, wherein an air inlet pipe (502) is provided at the top of the guide pipe (504).
5. A cored wire feeding device for spheroidization according to claim 4, wherein said air inlet pipe (502) is provided in plural and uniformly distributed at the top of the guide pipe (504).
6. A cored wire feeding apparatus for spheroidization according to claim 1, wherein a plurality of the feed rollers (506) are arranged at equal intervals in a vertical direction of the housing (509).
7. The core-spun yarn feeding device for spheroidization of claim 1, wherein the bottom of the smoke through hole (601) is provided with an upward concave baffle (602), the center of the baffle (602) is provided with a threading hole (603) for the core-spun yarn (8) to pass through, and the baffle (602) is uniformly provided with meshes (604) for ventilation.
8. A cored wire feeding device for spheroidization according to claim 1, wherein a cooling pipe (403) is provided in the gas collecting hood (404) around the wire feeding device (5), and a cooling liquid inlet pipe (401) and a cooling liquid outlet pipe (402) extending out of the gas collecting hood (404) are provided on the cooling pipe (403).
Priority Applications (1)
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CN202011393366.1A CN112239799A (en) | 2020-12-03 | 2020-12-03 | Core-spun yarn feeding device for spheroidizing treatment |
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CN202011393366.1A CN112239799A (en) | 2020-12-03 | 2020-12-03 | Core-spun yarn feeding device for spheroidizing treatment |
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CN202011393366.1A Pending CN112239799A (en) | 2020-12-03 | 2020-12-03 | Core-spun yarn feeding device for spheroidizing treatment |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114350892A (en) * | 2021-12-31 | 2022-04-15 | 禹州市恒利来新材料有限公司 | S-shaped variable-speed wire feeding spheroidizing method |
CN115323509A (en) * | 2022-08-31 | 2022-11-11 | 嘉兴博锐新材料有限公司 | Silk thread cooling device |
CN115466822A (en) * | 2022-09-15 | 2022-12-13 | 山东友达新材料科技有限公司 | Wire feeding device for spheroidizing and control method thereof |
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RU2175676C2 (en) * | 2000-01-10 | 2001-11-10 | Открытое акционерное общество "Новолипецкий металлургический комбинат" | Unit introducing wire into molten metal |
CN204714848U (en) * | 2015-06-03 | 2015-10-21 | 河北钢铁股份有限公司邯郸分公司 | Fiber tube is fed in a kind of refining furnace wire feeder outlet of improvement |
CN108115122A (en) * | 2017-12-31 | 2018-06-05 | 龙南龙钇重稀土科技股份有限公司 | A kind of cored wire injection nodulizing ladle backpack cover |
CN214991689U (en) * | 2020-12-03 | 2021-12-03 | 禹州市恒利来新材料有限公司 | Core-spun yarn feeding device for spheroidizing treatment |
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2020
- 2020-12-03 CN CN202011393366.1A patent/CN112239799A/en active Pending
Patent Citations (4)
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RU2175676C2 (en) * | 2000-01-10 | 2001-11-10 | Открытое акционерное общество "Новолипецкий металлургический комбинат" | Unit introducing wire into molten metal |
CN204714848U (en) * | 2015-06-03 | 2015-10-21 | 河北钢铁股份有限公司邯郸分公司 | Fiber tube is fed in a kind of refining furnace wire feeder outlet of improvement |
CN108115122A (en) * | 2017-12-31 | 2018-06-05 | 龙南龙钇重稀土科技股份有限公司 | A kind of cored wire injection nodulizing ladle backpack cover |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN114350892A (en) * | 2021-12-31 | 2022-04-15 | 禹州市恒利来新材料有限公司 | S-shaped variable-speed wire feeding spheroidizing method |
CN115323509A (en) * | 2022-08-31 | 2022-11-11 | 嘉兴博锐新材料有限公司 | Silk thread cooling device |
CN115323509B (en) * | 2022-08-31 | 2024-02-09 | 嘉兴博锐新材料有限公司 | Silk thread cooling device |
CN115466822A (en) * | 2022-09-15 | 2022-12-13 | 山东友达新材料科技有限公司 | Wire feeding device for spheroidizing and control method thereof |
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Application publication date: 20210119 |