TISCO helps localize my country's photovoltaic polysilicon core equipment

Global launch of alloy wide and thick plates with a single weight ton or more

This newspaper reported (Reporter Luo Zhonghe) On the day, a reporter from China Metallurgical News learned from China Baowu Taiyuan Iron and Steel (Group) Co., Ltd. that in early month, Qinghai Asia Silicon Industry Semiconductor Co., Ltd. (hereinafter referred to as Asia Silicon Industry) sent a letter of thanks to Taiyuan Iron and Steel, expressing gratitude for the outstanding contribution made by Taiyuan Iron and Steel to the timely and successful commissioning of the first domestically produced photovoltaic polysilicon core equipment, the cold hydrogenation reactor.

It is reported that in the month of the year, China's first set of photovoltaic polysilicon core equipment, the cold hydrogenation reactor, was successfully and safely put into operation on time at Asia Silicon Industry, using entirely domestically produced materials. This achievement marks a transformation from reliance on imports to domestic self-supply, making it a milestone event in the construction of China's clean and renewable energy industry, and holds strategic significance for promoting the development of the new energy industry. As of now, the equipment has been operating smoothly.

Today, the photovoltaic industry has become a pillar of China's new energy sector. China's photovoltaic industry has maintained global leadership for many years in terms of technological capabilities, power generation, and installed capacity, with a broad market outlook. The demand for key materials in photovoltaic conversion, such as polysilicon, has also surged rapidly. As market competition intensifies, the core equipment for polysilicon production, the cold hydrogenation reactor, is evolving towards larger size and higher parameters. This development necessitates the rapid large-scale supply and upgrading of key materials, such as iron-nickel-based alloys, with requirements for greater thickness and single weight.

For a long time, the polycrystalline silicon core equipment reactor has relied on imported iron-nickel-based alloy wide and thick plate materials, which have been constrained by small specifications, high costs, and long delivery cycles, becoming a bottleneck in the development of the polycrystalline silicon industry, urgently requiring localization. The customer not only demanded stringent performance requirements such as high temperature resistance, high pressure resistance, strong corrosion resistance, and extremely high surface quality for this product, but also unprecedented requirements for thickness and plate weight, presenting extraordinary technical challenges. Domestic steel mills had never before supplied such products.

In the first half of the year, Taiyuan Iron and Steel (TISCO) took on the mission of achieving localization and large-scale supply breakthroughs in key materials for the photovoltaic industry. Through arduous technical efforts and boldly adopting an efficient short-process technology route, TISCO resolved a series of technical challenges in the production of wide and thick plates made from iron-nickel-based alloys, achieving significant innovation in the production process. The company independently developed high-performance, high-quality wide and thick plates, which were mass-supplied in the same year. Subsequently, in response to the material upgrade needs of the polysilicon project, TISCO achieved a global first with alloy wide and thick plates weighing over 100 tons, filling a market gap. In the month of the year, this R&D project won the first prize of the Metallurgical Science and Technology Award from the China Iron and Steel Industry Association and the China Metal Society; in the same month, it was also nominated for the annual innovation award of the World Steel Association's (the 1st) "Prize."

Sales of Benxi Steel's automotive steel have increased by .% in the first months of this year compared to the same period last year.

Since the beginning of this year, Benxi Steel has actively shifted its marketing strategy from a traditional product-centric approach to a user-centric one. By developing direct supply users and leading them, Benxi Steel has established a new type of user relationship, creating value for users through technology and services, effectively enhancing the industry competitiveness and brand influence of its automotive steel products. In the first few months of this year, Benxi Steel's automotive steel sales increased by .%. Among them, sales to original equipment manufacturers (OEMs) increased by . million tons, a rise of .%, and sales of automotive outer panels increased by . million tons, a rise of .%. The image shows the freshly produced automotive steel from Benxi Steel. (Xu Hailing/Text, Yang Zhen/Photography)

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编辑 | 李昕芮
审核 | 张垚
策划 | 陈晓莉