With the rapid growth of domestic PV installed capacity, the demand for crystalline silicon materials is increasing day by day. The diamond wire cutting process has gradually become an alternative technology for cutting and processing hard and brittle materials by virtue of its technological advantages. In this round of industrial upgrading, companies involved in diamond wire manufacturing in the A-share market have made a lot of money. Tony Electronics announced its pre-announcement on January 6. It is estimated that the net profit attributable to shareholders of listed companies will increase by about 100 million yuan to 120 million yuan in the same period of the previous year, a year-on-year increase of 157.63% to 189.16%. According to the company, the main reason for the increase in performance is that the investment in the investment project has led to an increase in the sales revenue of diamond cutting line products, and the gross profit margin of diamond cutting lines is higher than that of the company's old products. Although Sanchao New Materials and Muller New Materials have not yet released the 2017 annual results forecast, their first three quarters results show that the company has benefited from the release of diamond line capacity. In the first three quarters of the year, Muller realized revenue of 291 million yuan, a year-on-year increase of 124.63%; net profit attributable to shareholders of listed companies was 68,845,300 yuan, an increase of 137.59%. In the first three quarters of the three super-new materials, the company achieved revenue of 164 million yuan, a year-on-year increase of 46.22%; net profit attributable to shareholders of listed companies was 40.879 million yuan, an increase of 55.26%. Relevant listed companies further strengthen their own technological level and industrial expansion. After the initial launch of the three super new materials in April 2017, it quickly acquired a number of patented technologies around the diamond line, covering diamond wire saw processing equipment and testing equipment. On January 9, 2018, Muller New Materials announced that it plans to set up a wholly-owned subsidiary with its own funds of 100 million yuan to engage in new materials business mainly based on diamond wire. Interestingly, Muller New Materials, Sanchao New Materials, and Tony Electronics all completed their initial public offerings in 2017. Prior to this, the A-share market rarely saw companies that were able to mass-produce diamond lines. It is understood that the diamond cutting line is made by inlaying diamond micro-particles on a very fine steel wire, and is mainly used for cutting hard and brittle materials such as silicon wafers, sapphire, semiconductors, magnets, etc. of solar cells. The cutting technology of diamond cutting line has the advantages of multi-line operation, small knife gap loss and fast cutting speed. It has gradually replaced the traditional mortar cutting technology and become the mainstream process of hard and brittle material cutting. Zhongtai Securities pointed out in its research report that the key advantage of diamond wire compared to steel wire is that its cutting speed can be 2 to 3 times faster, the machine productivity is increased by more than 1.5 times, and the expensive and difficult to handle mortar is not used. Very few. As the upstream of the solar photovoltaic industry chain, what is the future development of diamond cutting lines? On July 19, 2017, the National Energy Administration issued the “Guiding Opinions on the Implementation of the 13th Five-Year Plan for Renewable Energy Developmentâ€, which proposes a fixed 8 million kilowatts of photovoltaic front runners per year from 2018 to 2020, nationwide. There will be more than 13 million kilowatts of new PV power plant construction plans every year. The National Energy Administration also stated that photovoltaic power generation projects using fixed building roofs, walls and ancillary sites, and all self-sustaining ground photovoltaic power plant projects are not subject to annual scale restrictions, encouraging the development of distributed renewable energy power. A number of brokerage institutions have emphasized in the research report that the installed capacity of photovoltaics is still maintaining a high level of prosperity, and distributed photovoltaics will still show a rushing situation in the future. According to the reporter of the Shanghai Stock Exchange, the diamond line projects of the company, such as Sanchao New Materials, Muller New Materials and Tony Electronics, are all running at full capacity, and the products are basically in short supply. At present, the monocrystalline silicon cutting in the photovoltaic industry has basically adopted diamond wire, which has replaced the traditional process, but the polysilicon cutting field is still in the initial stage of the replacement of new and old processes, and the capacity demand is still strong. In addition, the diamond wire for sapphire cutting is the main consumable for the manufacture of sapphire substrates. The application of sapphire products in consumer electronics in the future will also leave a broad imagination for the market. If sapphire materials are widely used in smart phones and wearable devices in the future, the diamond wire field will undoubtedly open up a new world.
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