China's PV industry has achieved major breakthroughs in the localization of key equipment

Recently, the Electronic Information Industry Development Fund “Development and Industrialization of Polysilicon Ingot Furnaces” undertaken by 48 China Electronics Technology Corporation (referred to as “China Electronics”) and the project of “High Diameter Closed-tube High Temperature Diffusion/Oxidation Equipment” passed the acceptance inspection. To achieve a major breakthrough in the localization of key equipment in China's solar photovoltaic industry.

Polysilicon ingot furnace is the key equipment in the front end of photovoltaic industry chain. With the implementation of the "Polysilicon Ingot Furnace Development and Industrialization" project, China Electronics Science & Technology Corporation is committed to science and technology innovation, with far-sighted vision, overcoming difficulties, and conquering the thermal fields of polycrystalline silicon directional solidification technology, high clean furnace technology, and crystalline silicon growth systems. With a series of technical problems such as technology and precision transmission technology, the company has developed polysilicon ingot furnaces with completely independent intellectual property rights and applied for a number of patents. The successful development of this equipment is a major breakthrough in the realization of domestic production of key equipment in China's solar photovoltaic industry. It solves the technical bottleneck of large-scale production of polycrystalline silicon ingots in China, satisfies the urgent needs of domestic equipment, and saves a lot of foreign exchange, and can form a The new high-tech product clusters will improve China's photovoltaic industry chain, drive the overall level of the national photovoltaic industry, and achieve significant economic and social benefits.

Large-diameter closed-tube high-temperature diffusion/oxidation system for solar cell production is a key equipment in the crystalline silicon solar cell production line, involving physical, mechanical, chemical, electronic, fluid mechanics, molecular mechanics, optics, thermal engineering, computer control, automatic control, etc. More than 10 cutting-edge technologies. The “Big Caliber Closed Tube High Temperature Diffusion/Oxidation Equipment” project has successfully developed key technologies such as the best process technology for large-diameter closed-tube high-temperature diffusion, high-precision temperature control technology for large-diameter long-term temperature zones, and automatic sealing mechanism design for high-temperature furnace doors. Developed a production-oriented, high-caliber closed-tube high-temperature diffusion/oxidation system for solar cell manufacturing with international advanced level, established a large-calibre closed-tube high-temperature diffusion/oxidation system and process R&D and industrial production with independent intellectual property rights The base has realized the localization and industrialization of key process equipment in the photovoltaic industry chain. Applied for two patents, breaking the monopoly of foreign technology, equipment, technical indicators have reached the international advanced technology level. It is of great significance to enhance the core competitiveness of domestic photovoltaic companies and achieve a healthy and orderly sustainable development of the domestic photovoltaic industry.