CN113787097A - Production method and equipment for continuous casting and rolling of zinc plate - Google Patents
Production method and equipment for continuous casting and rolling of zinc plate Download PDFInfo
- Publication number
- CN113787097A CN113787097A CN202111061597.7A CN202111061597A CN113787097A CN 113787097 A CN113787097 A CN 113787097A CN 202111061597 A CN202111061597 A CN 202111061597A CN 113787097 A CN113787097 A CN 113787097A
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- Prior art keywords
- rolling
- casting
- roller
- zinc
- cold rolling
- Prior art date
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 97
- 239000011701 zinc Substances 0.000 title claims abstract description 97
- 238000005096 rolling process Methods 0.000 title claims abstract description 80
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
- 238000009749 continuous casting Methods 0.000 title claims abstract description 27
- 238000005266 casting Methods 0.000 claims abstract description 80
- 238000005097 cold rolling Methods 0.000 claims abstract description 68
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000003723 Smelting Methods 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims description 21
- 238000010008 shearing Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 238000001953 recrystallisation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- B08B1/12—
-
- B08B1/20—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
- B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
- B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
Abstract
The invention provides a production method for continuous casting and rolling of a zinc plate, which can improve the production efficiency of the zinc plate. A production method for continuous casting and rolling of a zinc plate specifically comprises the following steps: (1) smelting zinc liquid; (2) casting and rolling; casting and rolling the zinc liquid by a casting and rolling machine, wherein the casting and rolling temperature is 200-230 ℃, and the thickness of a primary rolled product of the rolled zinc plate is 5-8 mm; (3) cold rolling; performing cold rolling on the primary rolled product of the zinc plate by using a cold rolling mill, wherein the cold rolling temperature is 130-150 ℃, and the thickness of the secondary rolled product of the zinc plate prepared by rolling is 2-4 mm; (4) and stacking to obtain a zinc plate finished product. Compared with the existing production mode, the invention has fewer processing steps and higher production efficiency; after zinc liquid is continuously cast and continuously rolled into a zinc plate by a casting and rolling machine, cold rolling is carried out below the recrystallization temperature of the zinc plate, so that the performance of a zinc plate finished product is effectively ensured to reach the standard; the size of the roller of the casting and rolling machine is improved, so that the solidification effect of the zinc liquid when the zinc liquid is changed into a zinc plate is ensured.
Description
Technical Field
The invention relates to a production method and equipment of a zinc plate, in particular to a production method and equipment for continuous casting and rolling of the zinc plate.
Background
In the prior art, a processing method of a zinc plate takes molten zinc as a raw material, and a finished product of the zinc plate is obtained through ingot casting, surface milling, hot rolling, cold rolling and shearing.
The casting and rolling process is to introduce molten metal into the gap between rotating rolls and to make the molten metal solidify and be rolled by using the rolls as crystallizers.
Therefore, research and development of a continuous casting and rolling process and equipment suitable for zinc plates are carried out to improve the production efficiency of the zinc plates, reduce the processing cost and obtain zinc plate finished products with standard and excellent performance, and the process and the equipment have very important significance for the field.
Disclosure of Invention
The invention aims to provide a production method for continuously casting and rolling a zinc plate, which improves the production efficiency of the zinc plate and solves the problems in the background technology.
The invention also aims to provide production equipment for continuous casting and rolling of the zinc plate.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a production method for continuous casting and rolling of a zinc plate specifically comprises the following steps:
(1) smelting zinc liquid;
(2) casting and rolling; casting and rolling the zinc liquid by a casting and rolling machine, wherein the casting and rolling temperature is 200-230 ℃, and the thickness of a primary rolled product of the rolled zinc plate is 5-8 mm;
(3) cold rolling; performing cold rolling on the primary rolled product of the zinc plate by using a cold rolling mill, wherein the cold rolling temperature is 130-150 ℃, and the thickness of the secondary rolled product of the zinc plate prepared by rolling is 2-4 mm;
(4) and stacking to obtain a zinc plate finished product.
Preferably, in the step (2), the casting and rolling machine comprises a frame, a launder, a front box, a casting nozzle, an upper roll, a lower roll and a roll surface cleaning device, wherein the launder, the front box, the casting nozzle, the upper roll and the lower roll are sequentially arranged on the frame, the upper roll and the lower roll are oppositely arranged and rotate in opposite directions, a gap is formed between the upper roll and the lower roll, an inlet of the casting nozzle is communicated with the front box, and an outlet of the casting nozzle is adjacent to the gap between the upper roll and the lower roll.
Preferably, the casting and rolling machine is provided with a roller, and the diameter of the roller is 1000-1500 mm.
Preferably, in the step (2), the casting and rolling machine is provided with a casting nozzle, and the temperature of the molten zinc at the inlet of the casting nozzle is 460-480 ℃.
Preferably, in the step (2), the casting rolling temperature is 218-222 ℃.
Preferably, in the step (3), the cold rolling temperature is 138 to 142 ℃.
A production facility for continuous casting and rolling of zinc plates comprises:
the melting furnace is used for smelting to prepare zinc liquid;
the casting and rolling machine is used for manufacturing a zinc plate by continuous casting and rolling and comprises a rack, a launder, a front box, a casting nozzle, an upper roller, a lower roller and a roller surface cleaning device, wherein the launder, the front box, the casting nozzle, the upper roller and the lower roller are sequentially arranged on the rack, the upper roller and the lower roller are oppositely arranged and rotate in opposite directions, a gap is formed between the upper roller and the lower roller, an inlet of the casting nozzle is communicated with the front box, and an outlet of the casting nozzle is adjacent to the gap between the upper roller and the lower roller;
the cold rolling machine is used for cold rolling a zinc plate and comprises a cold rolling rack, an upper cold rolling roller and a lower cold rolling roller, wherein the upper cold rolling roller and the lower cold rolling roller are arranged on the cold rolling rack, are arranged oppositely and rotate reversely, and a gap is formed between the upper cold rolling roller and the lower cold rolling roller;
and the stacking machine is used for stacking the zinc plates.
Preferably, the roller surface cleaning device comprises a linear reciprocating motor, a ball screw, a screw nut and a cleaning scraper, wherein the output end of the linear reciprocating motor is connected with the ball screw, the screw nut is sleeved on the ball screw, the cleaning scraper is connected with the screw nut, and a hairbrush is arranged on the surface of the cleaning scraper.
Preferably, a shearing machine is arranged between the casting and rolling mill and between the cold rolling mill and the stacking machine.
The invention has the beneficial effects that:
the production method and the equipment for the continuous casting and rolling of the zinc plate realize the continuous casting and rolling production of the zinc plate, and have fewer processing steps and higher production efficiency compared with the existing production mode; after zinc liquid is continuously cast and continuously rolled into a zinc plate by a casting and rolling machine, cold rolling is carried out below the recrystallization temperature of the zinc plate, so that the performance of a zinc plate finished product is effectively ensured to reach the standard, the rolling speed is high, no impurity is introduced, and the yield is over 90 percent; by improving the size of the roller of the casting and rolling machine, the solidification time of the zinc plate is prolonged, the crystallization period of the zinc liquid during solidification is prolonged, and the solidification effect of the zinc liquid during transformation into the zinc plate is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic flow diagram of the process of the present invention;
FIG. 2 is a schematic view of a zinc plate continuous casting and rolling production apparatus of the present invention;
figure 3 is a schematic view of the roll surface cleaning apparatus of the present invention.
In the figure: 1. melting furnace, 2, casting and rolling machine, 3, cold rolling machine, 4, stacking machine, 5, shearing machine, 201, frame, 202, launder, 203, front box, 204, casting nozzle, 205, upper roll, 206, lower roll, 207, roll surface cleaning device, 2071, linear reciprocating motor, 2072, ball screw, 2073, screw nut, 2074, cleaning scraper, 2075, hairbrush, 301, cold rolling frame, 302, cold rolling upper roll, 303 and cold rolling lower roll.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific examples in conjunction with the accompanying drawings. It is to be understood that the practice of the invention is not limited to the following examples, and that any variations and/or modifications may be made thereto without departing from the scope of the invention.
In the present invention, all parts and percentages are by weight, unless otherwise specified, and the equipment and materials used are commercially available or commonly used in the art. The methods in the following examples are conventional in the art unless otherwise specified. The components or devices in the following examples are, unless otherwise specified, standard parts or parts known to those skilled in the art, the structure and principle of which are known to those skilled in the art through technical manuals or through routine experimentation.
Example (b):
the production method for continuous casting and rolling of the zinc plate shown in figure 1 specifically comprises the following steps:
(1) smelting zinc liquid;
(2) casting and rolling; casting and rolling the zinc liquid by a casting and rolling machine, wherein the casting and rolling temperature is 200-230 ℃, and the thickness of a primary rolled product of the rolled zinc plate is 5-8 mm;
(3) cold rolling; performing cold rolling on the primary rolled product of the zinc plate by using a cold rolling mill, wherein the cold rolling temperature is 130-150 ℃, and the thickness of the secondary rolled product of the zinc plate prepared by rolling is 2-4 mm;
(4) and stacking to obtain a zinc plate finished product.
In order to obtain a better casting and rolling effect, in the step (2), the casting and rolling machine comprises a rack, a launder, a front box, a casting nozzle, an upper roller, a lower roller and a roller surface cleaning device, wherein the launder, the front box, the casting nozzle, the upper roller and the lower roller are sequentially arranged on the rack, the upper roller and the lower roller are oppositely arranged and reversely rotate, a gap is formed between the upper roller and the lower roller, an inlet of the casting nozzle is communicated with the front box, and an outlet of the casting nozzle is adjacent to the gap between the upper roller and the lower roller.
In order to obtain a better casting and rolling effect, the casting and rolling machine is provided with a roller, and the diameter of the roller is 1000-1500 mm. The diameter of the roller in the prior art is 500-1000 mm, and in order to prolong the curing time of a zinc plate and prolong the crystallization period of the zinc liquid during curing, the diameter of the roller is increased, so that the curing effect of the zinc liquid when the zinc liquid is changed into the zinc plate can be ensured.
In order to obtain a better casting and rolling effect, the casting and rolling machine is provided with a casting nozzle, and the temperature of the molten zinc at the inlet of the casting nozzle is 460-480 ℃.
In order to obtain a better casting and rolling effect, the casting and rolling temperature is 218-222 ℃.
In order to obtain better cold rolling effect, the cold rolling temperature is 138-142 ℃. The temperature range ensures that the cold rolling is carried out below the recrystallization temperature of the zinc plate, and effectively ensures that the performance of the zinc plate finished product reaches the standard.
As shown in fig. 2, a production apparatus for continuous casting and rolling of zinc plate by the above production method comprises a melting furnace 1, a casting and rolling machine 2, a cold rolling machine 3 and a stacking machine 4 which are arranged in sequence.
The melting furnace 1 is used for smelting to prepare zinc liquid.
The casting and rolling machine 2 is used for manufacturing a zinc plate by continuous casting and rolling and comprises a frame 201, a launder 202, a front box 203, a casting nozzle 204, an upper roller 205, a lower roller 206 and a roller surface cleaning device 207, wherein the launder 202, the front box 203, the casting nozzle 204, the upper roller 205 and the lower roller 206 are sequentially arranged on the frame 201, the upper roller 205 and the lower roller 206 are oppositely arranged and rotate in opposite directions, a gap is formed between the upper roller 205 and the lower roller 206, an inlet of the casting nozzle 204 is communicated with the front box 203, and an outlet of the casting nozzle 204 is adjacent to the gap between the upper roller 205 and the lower roller 206. As shown in fig. 3, the roller surface cleaning device 207 includes a linear reciprocating motor 2071, a ball screw 2072, a screw nut 2073 and a cleaning blade 2074, wherein the output end of the linear reciprocating motor 2071 is connected to the ball screw 2072, the screw nut 2073 is sleeved on the ball screw 2072, the cleaning blade 2074 is connected to the screw nut 2073, and a brush 2075 is disposed on the surface of the cleaning blade 2074.
The cold rolling machine 3 is used for cold rolling of zinc plates and comprises a cold rolling machine frame 301, an upper cold rolling roller 302 and a lower cold rolling roller 303, wherein the upper cold rolling roller 302 and the lower cold rolling roller 303 are arranged on the cold rolling machine frame 301, the upper cold rolling roller 302 and the lower cold rolling roller 303 are oppositely arranged and rotate in the opposite direction, and a gap is formed between the upper cold rolling roller 302 and the lower cold rolling roller 303.
The stacker 4 is used to stack zinc plates.
In order to further increase the production efficiency, a shearing machine 5 is provided between the casting and rolling mill 2 and the cold rolling mill 3, and between the cold rolling mill 3 and the stacking machine 4. The shearing machine 5 is a conventional machine for shearing the continuously formed zinc plate into a desired length, and will not be described in detail herein.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (9)
1. A production method for continuous casting and rolling of zinc plates is characterized by comprising the following steps: the production method for the continuous casting and rolling of the zinc plate specifically comprises the following steps:
(1) smelting zinc liquid;
(2) casting and rolling; casting and rolling the zinc liquid by a casting and rolling machine, wherein the casting and rolling temperature is 200-230 ℃, and the thickness of a primary rolled product of the rolled zinc plate is 5-8 mm;
(3) cold rolling; performing cold rolling on the primary rolled product of the zinc plate by using a cold rolling mill, wherein the cold rolling temperature is 130-150 ℃, and the thickness of the secondary rolled product of the zinc plate prepared by rolling is 2-4 mm;
(4) and stacking to obtain a zinc plate finished product.
2. The production method of zinc plate continuous casting and rolling according to claim 1, characterized in that: in the step (2), the casting and rolling machine (2) comprises a rack (201), a launder (202), a front box (203), a casting nozzle (204), an upper roller (205), a lower roller (206) and a roller surface cleaning device (207), wherein the launder (202), the front box (203), the casting nozzle (204), the upper roller (205) and the lower roller (206) are sequentially arranged on the rack (201), the upper roller (205) and the lower roller (206) are oppositely arranged and rotate, a gap is formed between the upper roller (205) and the lower roller (206), an inlet of the casting nozzle (204) is communicated with the front box (203), and an outlet of the casting nozzle (204) is adjacent to the gap between the upper roller (205) and the lower roller (206).
3. The production method of zinc plate continuous casting and rolling according to claim 1, characterized in that: the casting and rolling machine (2) is provided with a roller, and the diameter of the roller is 1000-1500 mm.
4. The production method of zinc plate continuous casting and rolling according to claim 1, characterized in that: in the step (2), the casting and rolling machine (2) is provided with a casting nozzle, and the temperature of the zinc liquid at the inlet of the casting nozzle is 460-480 ℃.
5. The production method of zinc plate continuous casting and rolling according to claim 1, characterized in that: in the step (2), the casting rolling temperature is 218-222 ℃.
6. The production method of zinc plate continuous casting and rolling according to claim 1, characterized in that: in the step (3), the cold rolling temperature is 138-142 ℃.
7. A production apparatus for zinc plate continuous casting and rolling by using the production method for zinc plate continuous casting and rolling as set forth in any one of claims 1 to 6, characterized in that: the production equipment for continuously casting and rolling the zinc plate comprises:
the melting furnace (1) is used for smelting to prepare zinc liquid;
the casting and rolling machine (2) is used for continuously casting and rolling to prepare a zinc plate and comprises a rack (201), a launder (202), a front box (203), a casting nozzle (204), an upper roller (205), a lower roller (206) and a roller surface cleaning device (207), wherein the launder (202), the front box (203), the casting nozzle (204), the upper roller (205) and the lower roller (206) are sequentially arranged on the rack (201), the upper roller (205) and the lower roller (206) are oppositely arranged and rotate, a gap is formed between the upper roller (205) and the lower roller (206), an inlet of the casting nozzle (204) is communicated with the front box (203), and an outlet of the casting nozzle (204) is adjacent to the gap between the upper roller (205) and the lower roller (206);
the cold rolling machine (3) is used for cold rolling of zinc plates and comprises a cold rolling rack (301), an upper cold rolling roller (302) and a lower cold rolling roller (303), wherein the upper cold rolling roller (302) and the lower cold rolling roller (303) are arranged on the cold rolling rack (301), the upper cold rolling roller (302) and the lower cold rolling roller (303) are oppositely arranged and rotate in the opposite direction, and a gap is formed between the upper cold rolling roller (302) and the lower cold rolling roller (303);
a stacker (4) for stacking the zinc plates.
8. The production equipment for continuous casting and rolling of zinc plates according to claim 7, characterized in that: the roller surface cleaning device (207) comprises a linear reciprocating motor (2071), a ball screw (2072), a screw nut (2073) and a cleaning scraper (2074), the output end of the linear reciprocating motor (2071) is connected with the ball screw (2072), the screw nut (2073) is sleeved on the ball screw (2072), the cleaning scraper (2074) is connected with the screw nut (2073), and the surface of the cleaning scraper (2074) is provided with a hairbrush (2075).
9. The production equipment for continuous casting and rolling of zinc plates according to claim 7, characterized in that: and shearing machines (5) are arranged between the casting and rolling machine (2) and the cold rolling machine (3) and between the cold rolling machine (3) and the stacking machine (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111061597.7A CN113787097A (en) | 2021-09-10 | 2021-09-10 | Production method and equipment for continuous casting and rolling of zinc plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111061597.7A CN113787097A (en) | 2021-09-10 | 2021-09-10 | Production method and equipment for continuous casting and rolling of zinc plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113787097A true CN113787097A (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111061597.7A Pending CN113787097A (en) | 2021-09-10 | 2021-09-10 | Production method and equipment for continuous casting and rolling of zinc plate |
Country Status (1)
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|---|---|
| CN (1) | CN113787097A (en) |
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