CN111916759A - Production equipment and process for lead-acid storage battery grid with good compaction effect - Google Patents
Production equipment and process for lead-acid storage battery grid with good compaction effect Download PDFInfo
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- CN111916759A CN111916759A CN202010634238.5A CN202010634238A CN111916759A CN 111916759 A CN111916759 A CN 111916759A CN 202010634238 A CN202010634238 A CN 202010634238A CN 111916759 A CN111916759 A CN 111916759A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/82—Multi-step processes for manufacturing carriers for lead-acid accumulators
- H01M4/84—Multi-step processes for manufacturing carriers for lead-acid accumulators involving casting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/68—Selection of materials for use in lead-acid accumulators
- H01M4/685—Lead alloys
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a lead-acid storage battery grid production device with good compaction effect and a process thereof, and the lead-acid storage battery grid production device comprises a preparation furnace, a material conveying pipe, a conveyor, a cooling box, a forming die, a cooling pipe electric telescopic rod and a compaction plate, wherein metal additives such as selenium, sulfur, arsenic and the like are added into a lead-acid storage battery grid alloy, so that the corrosion resistance and hardness of the lead-acid storage battery grid are effectively improved, the overcharge resistance is improved, the loss of a lead-acid storage battery is greatly reduced, and the problems of hot cracking, shrinkage cavity and the like of the lead-acid storage battery grid caused by different surface tensions of various metal additives are avoided; the lead-acid storage battery grid is subjected to aging curing in a good environment, the inside of an external curing box is subjected to moisture removal through steam, the lead-acid storage battery grid after moisture removal is dried for 2-22 hours, the grid curing effect is good, and the curing quality of the lead-acid storage battery grid is guaranteed; through the cooperation use of electric telescopic handle, compacting plate, make things convenient for the quick compaction of moulded die span, the compaction is effectual.
Description
Technical Field
The invention relates to lead-acid storage battery grid production equipment, in particular to lead-acid storage battery grid production equipment with a good compaction effect and a process thereof, and belongs to the technical field of lead-acid storage battery grid processing.
Background
A lead-acid accumulator is an accumulator whose electrodes are made of lead and its oxide and whose electrolyte is sulfuric acid solution. In the discharge state of the lead-acid storage battery, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; in a charged state, the main components of the positive electrode and the negative electrode are lead sulfate. The nominal voltage of a single-lattice lead-acid storage battery is 2.0V, and the single-lattice lead-acid storage battery can be discharged to 1.5V and charged to 2.4V; in application, 6 single lead-acid batteries are often connected in series to form a lead-acid battery with the nominal value of 12V, 24V, 36V, 48V and the like. With the rapid development of lead-acid storage battery technology and the continuous emergence of new materials and new processes, higher requirements are provided for the performances of the lead-acid storage battery such as loss, over-current charging resistance and the like.
Many domestic storage battery manufacturers also add additives such as selenium, sulfur, arsenic and the like into the antimony-containing grid alloy to improve the corrosion resistance and hardness of the grid, improve the overcharge resistance and reduce the loss of the storage battery, but because the dissolution temperatures of various additives in lead are different, the solubility of the additives is also different, and the different surface tensions of various additives cause the defects of thermal cracking, shrinkage cavity and the like of the grid; meanwhile, the alloy is prepared by each storage battery manufacturer, and the mould device and the production process are different, so that the cast grid is easy to form the problems of porosity, air holes, shrinkage holes, cracks, broken ribs and the like, and the quality of the grid is seriously influenced.
Disclosure of Invention
The invention aims to provide production equipment and a process for a lead-acid storage battery grid with a good compaction effect, so as to solve the problems in the background technology.
The purpose of the invention can be realized by the following technical scheme: a lead-acid storage battery grid production device with a good compaction effect comprises a furnace cover, a preparation furnace, a supporting leg, a material conveying pipe, a conveyor, a cooling box and a forming die, wherein the furnace cover is installed on the upper side of the preparation furnace, a material inlet pipe is installed on the upper side of the furnace cover, a second connecting flange is installed at one end of the material inlet pipe, the supporting leg is installed on the lower side of the preparation furnace, the material conveying pipe is connected to the inner side of the supporting leg and the middle position of the lower side of the preparation furnace, a control valve is installed on the material conveying pipe, a first connecting flange is installed at one end of the material conveying pipe, the first connecting flange is connected with a material discharging pipe, and the material discharging pipe;
the conveyer is installed to supporting leg one side, the bracing piece is installed to conveyer both sides limit symmetry, forming die has been placed to the conveyer upside, the cooler bin is installed to the conveyer outside, the import has been seted up to the cooler bin inside, the export has been seted up inside the cooler bin and with import symmetric position, and the conveyer passes the cooler bin through import and export, the cooler bin is inside to be equipped with electric telescopic handle, electric telescopic handle downside fixed mounting has the compacting plate, cooler bin internally mounted has the cooling tube.
Further, the front-to-back spacing of the inlet and the outlet is greater than the front-to-back spacing of the conveyor.
Further, the cross-sectional area of the compacting plate is larger than that of the forming die.
Further, the cooling pipe is arranged at the lower side in the cooling box in an S shape.
A production process of a lead-acid storage battery grid specifically comprises the following steps:
step one, preparing a grid alloy liquid:
s1: firstly, adding tin into a preparation furnace, heating to 750 ℃, slowly adding lanthanum, yttrium and cerium, stirring while adding, continuously stirring for 10 minutes after the metals are completely molten, then cooling to 500 ℃, discharging liquid, casting to obtain a tin-lanthanum-yttrium-cerium alloy ingot, and stirring for 5-8 minutes;
s2: heating a tin-lanthanum-yttrium-cerium alloy ingot to 400 ℃, then adding silver, manganese, barium, iron, chromium, silicon and potassium, continuously heating to 500 ℃, and stirring for 18 minutes under the condition of heat preservation to obtain a tin master alloy;
s3: adding 9 tons of electrolytic lead into a preparation furnace, heating until the electrolytic lead is molten and the temperature of the lead liquid reaches 500-520 ℃, and then carrying out slag removal and slag removal treatment on the lead liquid;
s4: after the slag is removed, continuously heating to 650-680 ℃, and adding calcium-aluminum alloy;
s5: 2 tons of electrolytic lead are put into the furnace, and the mixture is stirred to cool the temperature of the lead liquid to 550-560 ℃;
s6: adding tin master alloy, and uniformly stirring to obtain a grid alloy liquid;
s7: the grid alloy liquid flows out to an external lead ingot mold to form an alloy lead ingot;
step two, casting treatment of a grid:
adding the alloy lead ingot into another preparation furnace of the plate casting machine, heating until the alloy lead ingot is completely melted, and enabling the temperature of the preparation furnace to reach 450-520 ℃, the temperature of the material conveying pipe to reach 540-600 ℃ and the temperature of the forming die to reach 120-200 ℃;
step three, molding treatment of the grid:
s1: heating the forming die to 200 ℃, removing surface vestiges, spraying a release agent into a cavity of the forming die, and scraping the sprayed layers of the lugs and the frame part according to the structure of the grid;
s2: cooling the grid alloy liquid to 500 ℃, and then starting casting, wherein the alloy lead liquid is quantitatively added into a forming die of the grid through a material conveying pipe on a preparation furnace;
s3: the forming die cast with the alloy lead liquid is conveyed by a conveyor to pass through a cooling box, and the cooling box is used for preliminarily cooling the forming die;
s4: the electric telescopic rod drives the compaction plate to move, and the compaction plate compacts the alloy lead liquid on the forming die;
s5: the formed grid is ejected out through an ejector pin of the forming die, and the grid after demolding is conveyed and transmitted to an external shearing machine for shearing;
step four, curing the grid:
s1: placing the cut grid into an external curing box, and spraying steam into the external curing box, wherein the humidity of the steam is 50-75% RH, the temperature is 40-65 ℃, and the steam spraying time is 2-6 hours;
s2: after the external curing box is dehumidified, drying the grid to be processed for 2-22 hours at 80-120 ℃;
s3: and (4) removing the grid to be treated from the external curing box to room temperature for natural cooling.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, metal additives such as selenium, sulfur, arsenic and the like are added into the lead-acid battery grid alloy, so that the corrosion resistance and hardness of the lead-acid battery grid are effectively improved, the overcharge resistance is improved, the loss of the lead-acid battery is greatly reduced, and the problems of heat cracking, shrinkage cavity and the like of the lead-acid battery grid caused by different surface tensions of various metal additives are further avoided; the lead-acid storage battery grid is subjected to aging curing in a good environment, the inside of an external curing box is subjected to moisture removal through steam, the lead-acid storage battery grid after moisture removal is dried for 2-22 hours, the grid curing effect is good, and the curing quality of the lead-acid storage battery grid is guaranteed;
2. according to the invention, metal elements such as silver, manganese, barium, iron, chromium, silicon, potassium and the like are added into the lead liquid to form a tin master alloy, so that the thermal expansion coefficient is greatly reduced, the lead-acid storage battery grid is not easy to deform during cyclic charge and discharge, and the addition of the metal elements such as silver, manganese, barium, iron, chromium, silicon, potassium and the like can enhance the adhesion between the grid and an active substance, so that the active substance is not easy to fall off, and the deep charge and deep discharge capacity and the cyclic charge and discharge service life of the storage battery are facilitated;
3. according to the invention, through the matched use of the preparation furnace, the material conveying pipe, the conveyor, the cooling box, the forming die, the discharging pipe, the material feeding pipe, the cooling pipe, the electric telescopic rod and the compacting plate, an alloy lead ingot is melted into alloy lead liquid in the preparation furnace, the discharging pipe is connected with the material conveying pipe through the first connecting flange, the forming die is placed on the conveyor, the control valve is opened, the alloy lead liquid in the preparation furnace flows into the forming die, the conveyor is electrified to convey the forming die through the cooling box, the cooling pipe carries out primary cooling forming on the forming die, meanwhile, the electric telescopic rod drives the compacting plate to move, and the compacting plate compacts the alloy lead liquid in the forming die, so that the rapid compaction of a forming die span is facilitated, and the compacting effect is good.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the overall structure of a lead-acid battery grid production device with a good compaction effect;
FIG. 2 is a top sectional view of a cooling box in the production equipment for a lead-acid storage battery grid with a good compaction effect;
fig. 3 is a front sectional view of a cooling box in the lead-acid storage battery grid production equipment with a good compaction effect.
In the figure: 1. a furnace cover; 2. a preparation furnace; 3. a control valve; 4. supporting legs; 5. a delivery pipe; 6. a support bar; 7. a conveyor; 8. a cooling tank; 9. forming a mold; 10. a discharging pipe; 11. a first connecting flange; 12. a feed pipe; 13. a second connecting flange; 14. an outlet; 15. a cooling tube; 16. an inlet; 17. an electric telescopic rod; 18. and (5) compacting the plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the lead-acid storage battery grid production equipment with good compaction effect comprises a furnace cover 1, a preparation furnace 2, a support leg 4, a material conveying pipe 5, a conveyor 7, a cooling box 8 and a forming die 9, wherein the furnace cover 1 is installed on the upper side of the preparation furnace 2, a material conveying pipe 12 is installed on the upper side of the furnace cover 1, a second connecting flange 13 is installed at one end of the material conveying pipe 12, the support leg 4 is installed on the lower side of the preparation furnace 2, the material conveying pipe 5 is connected to the middle position of the lower side of the preparation furnace 2 and inside the support leg 4, a control valve 3 is installed on the material conveying pipe 5, a first connecting flange 11 is installed at one end of the material conveying pipe 5, a blanking pipe 10 is connected to the first connecting flange 11, and the blanking pipe 10 is connected to the material conveying pipe 5;
Further, the front-rear interval of the inlet 16 and the outlet 14 is larger than the front-rear interval of the conveyor 7.
Further, the cross-sectional area of the compacting plate 18 is larger than that of the molding die 9.
Further, the cooling pipe 15 is arranged in an S-shape at a lower side inside the cooling box 8.
A production process of a lead-acid storage battery grid specifically comprises the following steps:
step one, preparing a grid alloy liquid:
s1: firstly, adding tin into a preparation furnace 2, heating to 750 ℃, slowly adding lanthanum, yttrium and cerium, stirring while adding, continuously stirring for 10 minutes after the metal is completely molten, then cooling to 500 ℃, discharging, casting to obtain a tin-lanthanum-yttrium-cerium alloy ingot, and stirring for 5-8 minutes;
s2: heating a tin-lanthanum-yttrium-cerium alloy ingot to 400 ℃, then adding silver, manganese, barium, iron, chromium, silicon and potassium, continuously heating to 500 ℃, and stirring for 18 minutes under the condition of heat preservation to obtain a tin master alloy;
s3: adding 9 tons of electrolytic lead into a preparation furnace 2, heating until the electrolytic lead is molten and the temperature of the lead liquid reaches 500-520 ℃, and then carrying out slag removal and slag removal treatment on the lead liquid;
s4: after the slag is removed, continuously heating to 650-680 ℃, and adding calcium-aluminum alloy;
s5: 2 tons of electrolytic lead are put into the furnace, and the mixture is stirred to cool the temperature of the lead liquid to 550-560 ℃;
s6: adding tin master alloy, and uniformly stirring to obtain a grid alloy liquid;
s7: the grid alloy liquid flows out to an external lead ingot mold to form an alloy lead ingot;
step two, casting treatment of a grid:
adding the alloy lead ingot into another preparation furnace 2 of the plate casting machine, heating until the alloy lead ingot is completely melted, and enabling the temperature of the preparation furnace 2 to reach 450-520 ℃, the temperature of the material conveying pipe 5 to reach 540-600 ℃ and the temperature of the forming die 9 to reach 120-200 ℃;
step three, molding treatment of the grid:
s1: heating the forming die 9 to 200 ℃, removing surface vestiges, spraying a release agent into a cavity of the forming die 9, and scraping spray layers at the lug and frame parts according to the structure of a grid;
s2: cooling the grid alloy liquid to 500 ℃, and then starting casting, wherein the alloy lead liquid is quantitatively added into a forming mould 9 of the grid through a material conveying pipe 5 on a preparation furnace 2;
s3: the forming die 9 cast with the alloy lead liquid is conveyed through a cooling box 8 by a conveyor 7, and the cooling box 8 is used for preliminarily cooling the forming die 9;
s4: the electric telescopic rod 17 drives the compacting plate 18 to move, and the compacting plate 18 compacts the alloy lead liquid on the forming die 9;
s5: the formed grid is ejected out through an ejector pin of the forming die 9, and the demoulded grid is conveyed and transmitted to an external shearing machine for shearing;
step four, curing the grid:
s1: placing the cut grid into an external curing box, and spraying steam into the external curing box, wherein the humidity of the steam is 50-75% RH, the temperature is 40-65 ℃, and the steam spraying time is 2-6 hours;
s2: after the external curing box is dehumidified, drying the grid to be processed for 2-22 hours at 80-120 ℃;
s3: and (4) removing the grid to be treated from the external curing box to room temperature for natural cooling.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, metal additives such as selenium, sulfur, arsenic and the like are added into the lead-acid battery grid alloy, so that the corrosion resistance and hardness of the lead-acid battery grid are effectively improved, the overcharge resistance is improved, the loss of the lead-acid battery is greatly reduced, and the problems of heat cracking, shrinkage cavity and the like of the lead-acid battery grid caused by different surface tensions of various metal additives are avoided; the lead-acid storage battery grid is subjected to aging curing in a good environment, the inside of an external curing box is subjected to moisture removal through steam, the lead-acid storage battery grid after moisture removal is dried for 2-22 hours, the grid curing effect is good, and the curing quality of the lead-acid storage battery grid is guaranteed;
2. according to the invention, the tin master alloy formed by metal elements such as silver, manganese, barium, iron, chromium, silicon, potassium and the like is added into the lead liquid, so that the thermal expansion coefficient is greatly reduced, the lead-acid storage battery grid is not easy to deform during cyclic charge and discharge, and the addition of the metal elements such as silver, manganese, barium, iron, chromium, silicon, potassium and the like can enhance the adhesion between the grid and an active substance, so that the active substance is not easy to fall off, and the deep charge and deep discharge capacity and the cyclic charge and discharge service life of the storage battery are facilitated;
3. according to the invention, through the matching use of the preparation furnace 2, the conveying pipe 5, the conveyor 7, the cooling box 8, the forming die 9, the blanking pipe 10, the feeding pipe 12, the cooling pipe 15, the electric telescopic rod 17 and the compacting plate 18, an alloy lead ingot is melted into an alloy lead liquid in the preparation furnace 2, the blanking pipe 10 is connected with the conveying pipe 5 through the first connecting flange 11, the forming die 9 is placed on the conveyor 7, the control valve 3 is opened, the alloy lead liquid in the preparation furnace 2 flows into the forming die 9, the conveyor 7 is electrified to transmit the forming die 9 through the cooling box 8, the cooling pipe 15 carries out primary cooling forming on the forming die 9, meanwhile, the electric telescopic rod 17 drives the compacting plate 18 to move, the compacting plate 18 compacts the alloy lead liquid in the forming die 9, the rapid compaction of a forming die span is convenient, and the compaction effect is good.
A lead-acid storage battery grid production device with a good compaction effect is characterized in that when the device works, a furnace cover 1 is opened, an alloy lead ingot is added into a preparation furnace 2 and is heated until the alloy lead ingot is completely melted, the temperature of the preparation furnace 2 reaches 450-520 ℃, the temperature of a material conveying pipe 5 reaches 540-600 ℃, the temperature of a forming mold 9 reaches 120-200 ℃, the alloy lead ingot is melted into alloy lead liquid in the preparation furnace 2, a blanking pipe 10 is connected with the material conveying pipe 5 through a first connecting flange plate 11, the forming mold 9 is placed on a conveyor 7, a control valve 3 is opened, the alloy lead liquid in the preparation furnace 2 accurately flows into the forming mold 9, the conveyor 7 is electrified to convey the forming mold 9 through a cooling box 8, the cooling pipe 15 carries out primary cooling forming on the forming mold 9, meanwhile, an electric telescopic rod 17 drives a compaction plate 18 to move, the compaction plate 18 compacts the alloy lead liquid in the forming mold 9, the rapid compaction of the forming die span is facilitated, and the compaction effect is good.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The lead-acid storage battery grid production equipment with good compaction effect is characterized by comprising a furnace cover (1), a preparation furnace (2), supporting legs (4), a conveying pipe (5), a conveyor (7), a cooling box (8) and a forming die (9), wherein the furnace cover (1) is installed on the upper side of the preparation furnace (2), a feeding pipe (12) is installed on the upper side of the furnace cover (1), a second connecting flange (13) is installed at one end of the feeding pipe (12), the supporting legs (4) are installed on the lower side of the preparation furnace (2), the conveying pipe (5) is connected to the inner side of the supporting legs (4) and is positioned in the middle of the lower side of the preparation furnace (2), a control valve (3) is installed on the conveying pipe (5), a first connecting flange (11) is installed at one end of the conveying pipe (5), and the first connecting flange (11) is connected with a discharging pipe, the blanking pipe (10) is connected with the material conveying pipe (5) through a first connecting flange plate (11);
conveyer (7) are installed to supporting leg (4) one side, bracing piece (6) are installed to conveyer (7) both sides limit symmetry, forming die (9) have been placed to conveyer (7) upside, cooler bin (8) are installed in the conveyer (7) outside, import (16) have been seted up to cooler bin (8) inside, export (14) have been seted up to cooler bin (8) inside and with import (16) symmetric position, and conveyer (7) pass cooler bin (8) through import (16) and export (14), cooler bin (8) internal assembly has electric telescopic handle (17), electric telescopic handle (17) downside fixed mounting has compacting plate (18), cooler bin (8) internally mounted has cooling tube (15).
2. The production equipment for the grid of the lead-acid storage battery with good compaction effect according to claim 1, wherein the front-back distance of the inlet (16) and the outlet (14) is larger than the front-back distance of the conveyor (7).
3. The production equipment for the grid of the lead-acid storage battery with good compaction effect is characterized in that the cross-sectional area of the compaction plate (18) is larger than that of the forming die (9).
4. The production equipment for the grid of the lead-acid storage battery with the good compaction effect is characterized in that the cooling pipe (15) is arranged at the lower side inside the cooling box (8) in an S shape.
5. A lead-acid battery grid production process of lead-acid battery grid production equipment with good compaction effect according to any one of claims 1 to 4, characterized by comprising the following steps:
step one, preparing a grid alloy liquid:
s1: firstly, adding tin into a preparation furnace (2), heating to 750 ℃, slowly adding lanthanum, yttrium and cerium, stirring while adding, continuously stirring for 10 minutes after the metal is completely melted, then cooling to 500 ℃, discharging, casting to obtain a tin-lanthanum-yttrium-cerium alloy ingot, and stirring for 5-8 minutes;
s2: heating a tin-lanthanum-yttrium-cerium alloy ingot to 400 ℃, then adding silver, manganese, barium, iron, chromium, silicon and potassium, continuously heating to 500 ℃, and stirring for 18 minutes under the condition of heat preservation to obtain a tin master alloy;
s3: adding 9 tons of electrolytic lead into a preparation furnace (2), heating until the electrolytic lead is molten and the temperature of the lead liquid reaches 500-520 ℃, and then carrying out slag removal and slag removal treatment on the lead liquid;
s4: after the slag is removed, continuously heating to 650-680 ℃, and adding calcium-aluminum alloy;
s5: 2 tons of electrolytic lead are put into the furnace, and the mixture is stirred to cool the temperature of the lead liquid to 550-560 ℃;
s6: adding tin master alloy, and uniformly stirring to obtain a grid alloy liquid;
s7: the grid alloy liquid flows out to an external lead ingot mold to form an alloy lead ingot;
step two, casting treatment of a grid:
adding the alloy lead ingot into another preparation furnace (2) of the plate casting machine, heating until the alloy lead ingot is completely melted, and enabling the temperature of the preparation furnace (2) to reach 450-520 ℃, the temperature of the material conveying pipe (5) to reach 540-600 ℃ and the temperature of the forming die (9) to reach 120-200 ℃;
step three, molding treatment of the grid:
s1: heating the forming die (9) to 200 ℃, spraying a release agent into a cavity of the forming die (9) after removing surface vestiges, and scraping off spray layers at the lug and the frame part according to the structure of a grid;
s2: cooling the grid alloy liquid to 500 ℃, and then starting casting, wherein the alloy lead liquid is quantitatively added into a forming die (9) of the grid through a material conveying pipe (5) on a preparation furnace (2);
s3: the forming die (9) cast with the alloy lead liquid is conveyed through a cooling box (8) by a conveyor (7), and the cooling box (8) is used for preliminarily cooling the forming die (9);
s4: the electric telescopic rod (17) drives the compacting plate (18) to move, and the compacting plate (18) compacts the alloy lead liquid on the forming die (9);
s5: the formed grid is ejected out through an ejector pin of the forming die (9), and the demoulded grid is conveyed and transmitted to an external shearing machine for shearing;
step four, curing the grid:
s1: placing the cut grid into an external curing box, and spraying steam into the external curing box, wherein the humidity of the steam is 50-75% RH, the temperature is 40-65 ℃, and the steam spraying time is 2-6 hours;
s2: after the external curing box is dehumidified, drying the grid to be processed for 2-22 hours at 80-120 ℃;
s3: and (4) removing the grid to be treated from the external curing box to room temperature for natural cooling.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114883578A (en) * | 2022-05-09 | 2022-08-09 | 浙江天能汽车电池有限公司 | Preparation method of storage battery pole plate |
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