Introduction to lead-acid battery production process
Number of views：15014 Time：2018-03-15
I. Lead-acid battery process and main equipment
Lead powder manufacturing, grid casting, plate making, plate, assembly battery
Lead powder manufacturing equipment: casting machine or cutting machine, lead powder machine and transport storage system;
Plate grid casting equipment: melted product furnace, casting machine and various molds;
Polar manufacturing equipment: and paste machine, smear, surface drying, solidifying drying system, etc.
Polarization into equipment: charge and discharge motor;
Water cooling into and environmentally friendly equipment;
Assembly battery equipment: automotive battery, motorcycle battery, large small and medium sealing valve lead-acid battery assembly line
Battery Detection Device: Various battery performance detection.
Second, the typical lead-acid battery process process overview
The lead-acid battery is mainly composed of a battery tank, a battery cover, a positive and negative plate, a dilute sulfate electrolyte, a separator, and an accessory. Process manufacturing is as follows:
Products Manufacturing: 1 # electrolytic lead with special equipment lead powder machine is made into a conformity of lead powder.
Plate Grid Cast: Cast lead-to-lead alloys, lead calcium alloys, or other alloy leads typically use gravity casting to comply with different types of various slabs grids.
Made of polar plate: Apply to the plate grid surface after mixing with lead powder and dilute sulfuric acid and additive to dry solidification, that is, a viode plate.
Polarization: positive, negative electrode plates under the action of DC electricity, to produce levions of lead to produce levions by oxidative reduction, and then by cleaning, drying is a positive and negative electrode plate for battery assembly.
Assembly Battery: Pack different types of different sheets according to different needs to be assembled into a variety of different types of batteries.
Note: All units can choose different processes due to different process conditions.
1. Introduction to the grid casting
The plate gate is a carrier of the active substance and is also a conductive collector. Ordinary open-opening battery grids are generally cast by lead-borne alloy, and the maintenance-free battery grid is generally cast in low bayon or lead calcium alloy, and the sealing valve lead-acid battery grid is generally used with lead calcium alloy.
The first step: Determine the alloy lead model in the battery type to heat the finishing, reach the process requirements, and then cast the lead liquid into the metal mold, and the mold is repaired.
Step 2: Turn on the rigidity after the trimming plate passes after a certain timeliner.
Grid main control parameters: grid quality; grid thickness; grid integrity; grid geometry, etc .;
2, introduction of lead powder manufacturing
Lead powder is made of island granulation and Barton law, and the results are the lead powder of 1 # electrolysis lead into the battery production process. The main ingredients of lead powder are the lead and metal lead, the quality of lead powder is very close to the quality of the manufactured. In my country, the lead powder is produced in the island of Island, and the lead powder is produced in Europe and the United States.
The process of producing lead powder in Island Act is as follows:
The first step: the electrolytic lead of the test is processed into a certain size of the lead or lead segment through the cast or other methods;
Step 2: Put the shockey or lead segment into the lead powder machine, the lead ball or lead segment is oxidized into lead;
Step 3: Put the lead powder into the designated container or polish the powder bin, after 2-3 days, and then use it after the test is passed.
Main control parameters of lead powder: oxidation; visual density; water absorption; particle size, etc.
3. Introduction to Polar Manufacturing
The polar plate is the core part of the battery, and its quality directly affects various performance indicators of the battery. The production process of the paste plate plate is as follows:
Step 1: Pretrate the lead powder, dilute sulfuric acid, and additives of the test and the manufacture of dedicated equipment;
Step 2: Fill the lead paste with a smear or handmade to the grid;
In the third step: the puzzle is cured, dried, and the viode plate is obtained.
Pathode plate main control parameters: lead paste formula; visual density; acid content; vade; thickness; free lead content; water content, etc.
4, assembly process introduction
Battery assembly has a large difference in automotive battery and sealing valve-controlled lead-acid battery, and sealing valve lead-acid battery requires tight assembly to generally use AGM partitions, while car batteries generally use PE, PVC or rubber separator. The assembly process is briefly described as follows:
Step 1: Put the test qualified plate according to the process requirements;
Step 2: Casting or hand-welded pole groups are placed in a clean battery cell;
Step 3: The car battery needs to be welded and hot sealing, while the sealing valve lead-acid battery is bonded with a dedicated adhesive if the ABS battery tank is required.
Battery assembly main control parameters: bus welding quality and material; sealing performance, positive, negative polarity, etc.
5, introduce a process
Polarization formation and battery changes are two different methods of battery manufacturing, and can be selected according to specific situations. Polarization is generally relatively relatively easy to control costs, and environmental pollution needs to be specifically managed. The battery-based production is large, and the quality of the production of the biopsy produced is high, but the cost is relatively low. The sealing valve lead-acid battery is briefly described as follows:
Step 1: Put the battery tank seal according to the process requirements by process requirements;
Step 2: Invulldown on a certain amount of dilute sulfuric acid in accordance with the specified quantity;
Step 3: After the placement is placed, according to the size of the size, it is generally connected to the factory after the deposition inspection and the warehouse will be prepared.
Bathematical constant control parameters: pot acid quantity; can acid density; can acid temperature; charging amount and time, etc.
6, use and maintenance
The lead-acid battery is simple in its manufacturing process, the raw material is rich in source, and the price is moderately in the second chemical power supply, especially the appearance of the valve-controlled battery, making the traditional battery rejacity. The battery life is closely related to the manufacture of the battery, and the method is also impact with the usage method, and the use of the right to master the life of the battery is greatly beneficial.
(1) The following aspects should be taken from the date of the traditional open storage battery:
1 The number, density, and the degree of charging of the electrolyte are noted, especially if the charging system closely related to it is particularly concerned. If the amount of charge of the charging is large, the battery is lost, which is easy to cause the active substance of the plate to fall off, resulting in a short circuit of the bottom The internal temperature of the battery is high and the life is shortened. If the amount of charge is small, it is easy to cause the battery's loss, the battery can result in the non-reversible sulfate of the polar plate in the case of long-term loss, and the performance is rapidly rapid. , It is complete, the voltage drop is rapidly in the time of discharge.
2 The purity of the electrolyte, generally uses a special electrolyte or replenishing liquid perfusion, which is strictly forbidden to replace ordinary sulfuric acid and tap water.
3 daily use surface remains clean, exhaust port.
4 When you place it, you should be fully charged, and it is added for three months.
(2) The following aspects are required for the sealing valve lead-acid storage battery:
1 Note that the voltage of the charging voltage is floating in use, the voltage is generally controlled at 2.35 ± 0.1V / single. The voltage is generally controlled in 2.35 ± 0.1V / single. If the specification is required, it should be operated in accordance with the instructions.
2 Note that the use of ambient temperature, generally no more than 30 degrees. The adjustment of the voltage should be strengthened when the temperature changes.
3 The products of different manufacturers are not mixed, and the new and old old products of the same manufacturer are not mixed.
4 Sealed valve lead-acid battery is best not to open the cover to supplement the electrolyte and replace the safety valve.