Surface sandblasting method for solar silicon lithium battery industry

2022/04/08

  Author :Iflowpower – Portable Power Station Supplier

Solar cells are divided into two types: 1. One is a solar crystal silicon battery, made of polysilicon, occasionally monocrystalline silicon 2. One is the most wide application of solar film batteries.

Among the polysilicon solar product production process, the raw material is melted first, and then the silicon ingot is formed by crystallization process. Cutting and forming the silicon ingot, then produced by high precision slice technology. A multi-step production process including etching, doping, coating, and laying electrical contacts, etc.

, a battery is made into a battery. On this basis, the solar cell is connected and encapsulated, thereby forming a solar component, and then sending the system integrator together with other system components, mounted in the solar system. 1.

Solar crystal silicon battery Learn about the important manufacturing process of solar system, silicon-silicon ingot-wafer-battery-solar component-solar system, where the two steps of silicon ingots and silicon wafers are two links that will appear silicon waste. Since the pure silicon material is very expensive, if these waste, the waste to be discarded is clean, the utilization of the silicon raw materials can be improved, and the material cost is greatly saved. Virbelet (Group) pressure blasting system is an ideal method for this recyclable silicon feedstock cleaning.

2. Solar thin film battery pressure blasting system is also applicable to the manufacture of Wilbert (group) for thin film solar cell modules to provide surface cleaning solutions supplied by solar manufacturing fields–Sandblasting of the silicon ingot The cleaning treatment of silicon waste occurs during silicon ingot production. The silicon wafer is the basis for constituting the solar module.

After cutting and forming the silicon ingot, the damaged silicon wafloads produced during the process are made by high precision slice techniques. Regarding the recovery of silicon scrap, it is important to clean the surface of dirt, impurities, and debris. Virbelet (Group) pressure blasting system is the best way to clean up applications.

Due to the sandblasting process, the maximum material wear will reach 1 mm, so a large amount of dust will appear, which proposes special requirements for the high wear resistance of the blasting equipment. What is even more is, the pressure sandblast sandblast sandmatic cleaning of Verbert (Group) uses photographic tracking techniques to search for the sandblasting of the alignment of the interspers. Automatic cleaning room consists of 2 blasting systems, camera systems, parts / lower / lower systems, turntable systems, and waste conveyor belts.

–Sandblaness cleaning of the cutting tool is cleaned against a steel wire saw such as a silicon ingot into a silicon wafer. The thickness of the residual layer is very thin, but the area is large. Therefore, sandblasting equipment must also have special high wear resistance.

Verbert (Group) passed the pressure sandblasting system is the best choice for cleaning the surface residue of the sawing tool. Application of three-coating tool sandblasted sandblasted coating tools and brackets used during sandblasting cleaning solar film, these tools and brackets are coated with photovoltaic coating for conductive glass substrates. Verbert (Group) supplies specially used to clean the sandblasting system of the above-mentioned coating tools and brackets, including a large sandblasting room of nozzle robots, and its pellet recovery system is equipped with an efficient magnetic separation separation unit and a menu screen.

Divider. In the use of the four-pool industry, it is very complicated to the processing process of the raw material silicon ingot, and the high purity and utilization rate of silicon is. In order to clean the recyclable silicon material in the manufacturing, the recycling, Verbert (Group) supplied a special cleaning system for searching for impurities, and some targeted sandblasts.

Thereafter, the cleaned silicon material can be remelted, and the high purity silicon is used to use. Artificial cleaning method is cumbersome, large pollution, high cost. Virbert (Group) pressure shot system has automation and high wear resistance characteristics.

Since the silicon material is directly sprayed, the wear destructiveness of the blasting equipment is quite amazing, because the requirements for the wear resistance of the equipment are extremely high. The solar cell industry requires very high purity silicon. In addition to Verbert (Group), the exclusive technology that ensures high purity cleaning requirements that can be recyclable, there is no other manufacturers to meet the purity standard.

Using Vilbert (Group) High-automated compressed air sand blasting system, allowing global solar cell manufacturers to maximize the high purity of the recyclable material, thereby greatly saving production and raw material costs. Apply five - VAQUA wet sand blasting machine for wafer cleaning treatment, before manufacturing, all raw material surfaces must be thoroughly cleaned, then put into the high temperature furnace, and form a silicon ingot by crystallization process. Cut and form a silicon ingot, forming a silicon wafer.

Cleaning method has mechanical sandblasts and chemical acid washing. However, the cost of chemistry, the cost of cleaner is more important, and more importantly, the wastewater after treatment contains a large amount of harmful substances, endangering the environment and health, many manufacturers cannot solve the problem of emissions from chemical cleaning. Traditional dry spray method, even with high performance dust removal unit, it is still unable to prevent silica dust pollution working environment, dust remaining on the surface of the silicon, and also reduces silicon purity.

In order to overcome these problems, Vaqua wet sandblasting system launched by Verbert (Group). The system consists of a sand blasting cabinet having a deep 1200mmx width 1320mmx height, a heavy-duty turntable with a built-in diameter of 1067mm, which can achieve continuous cleaning. With efficient cleaning ability, cleansing surface, no dust, low pellet consumption, small wear.

Wet sandblasting cleaning silicon wafers: Since silicon raw materials are expensive, in the manufacture of silicon ingots, the silicon materials that originally discarded can be used to maximize the use of silicon materials, and ensure that the purity of the recoverable silicon material is key, which can be greatly saved. Raw material costs. With the wet sand blasting system of Verbert (Group), while maximizing silicon utilization, high-quality silicon ingots and silicon wafers can enable customers to obtain higher profits in unit silicon.

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