China's first photovoltaic polysilicon casting equipment was successfully developed

Recently, China's first photovoltaic polysilicon casting equipment “DZF260 Polysilicon Casting Furnace” developed by Changzhou Huasheng Tianlong Machinery Co., Ltd. relying on the technology of Tsinghua University was produced in Jintan. At the beginning of the month, the expert team of Tsinghua University had basically completed debugging and the quality reached The international advanced level.

According to experts from Tsinghua University, although China's polysilicon industry is not late, it is developing slowly. Production, technology, and technology are backward, outdated equipment, the country has not yet mature and stable polysilicon casting equipment and process technology, production needs basically rely on imports of the United States, Germany and France three companies related to the company's polysilicon casting equipment, each over the price of 10 million yuan According to the “Eleventh Five-Year Plan” National Science and Technology Development Plan, “breakthrough key technologies for the utilization of renewable energy such as hydropower, wind power generation, biomass liquid fuels, and solar photovoltaic power generation to achieve low-cost, large-scale, and industrialized utilization. "Requirements that polysilicon production equipment be classified as the current key product for development and key encouragement of foreign investment development by the National Development and Reform Commission, in order to solve the key technologies for the stability and reliability of photovoltaic polysilicon production equipment, optimize production processes, and achieve domestic production To break the international monopoly. Founded in December 2001, Changzhou Huasheng Tianlong Machinery Co., Ltd. is a professional photovoltaic equipment research and development company, a high-tech enterprise in Jiangsu Province, a Changzhou City advanced science and technology enterprise, and a Jintan Tsinghua University doctoral student practice base. It has two photovoltaic facilities, The manufacturing base has 18 patents of various types and an annual production capacity of over 1,000 units. The production capacity and new product R&D capability ranked among the top three in the country. The company has long-term good technical cooperation relations with many well-known domestic universities and research institutes such as Tsinghua University and Tongji University, and has successively undertaken 8 national and provincial-level technological research projects.

Crystal silicon solar cell chain general order is: raw material silica sand - polysilicon - monocrystalline silicon rod (polysilicon ingot) - silicon - cell - battery components. From the perspective of the entire industrial chain, the "photovoltaic polysilicon casting equipment" developed by Changzhou Huasheng Tianlong Machinery Co., Ltd. is precisely one of the key production equipments for polysilicon-monocrystalline silicon rods (polysilicon ingots) in the upstream of the industrial chain. Its successful development will bring a technological leap in China's polysilicon production, and bring benefits to the supporting manufacturers in the downstream industry chain: polysilicon casting equipment per stove production capacity of 270 - 3000kg, monthly production capacity is greater than 3000kg; Crystal furnace production capacity of 50kg, the monthly production capacity of 750kg, about; unit energy consumption is 70% of monocrystalline silicon; the requirements of raw materials; lower than two-thirds of each imported equipment, only 3 million yuan, for Improve product quality and provide assurance, while also conducive to participate in international market competition, improve market competitiveness, break foreign companies' technical barriers to China, form a group of proprietary technology with independent intellectual property rights, and have the same with the international advanced enterprise The competitiveness of the platform Photovoltaic equipment Machine complete equipment industry chain length, product design, high degree of modularity, strong The technology diffusion drive effect is conducive to the development of related industries such as machining, foundry, welding, electrical and computer control, and has high industrial added value, which is conducive to the formation of characteristic industrial clusters.

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