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On June 20th, several customers of Sinopec Sanjian Company found the spinning head plant of the Machinery Manufacturing Company from Zhoushan, Zhejiang Province. Regardless of their sweat on the forehead, they first explained the purpose of their trip to the operators. It turned out that Sinopec Sanjian Company urgently needed to process four large-size arch cover heads made of OCR13 in the construction of a project. They have gone to Jiangsu Yixing, Wuxi, Henan Xinxiang and other closure manufacturers because of high technology content and can not undertake. In Wuxi, only a few spins made the base metal crack, and it was their only hope to come here. This is another severe test of the level of technology and technology. Leaders, technical and operational staff of the head factory held a special meeting and believed that they could make bold attempts to accumulate experience for future production. The OCR13 material is characterized by high hardness, poor plasticity, and difficult forming. In the absence of any reference to technical design, they first conducted pressure tests and ended up cracking the base metal. In charge of the technical leadership of the factory and technical personnel, they have further formulated bold and detailed construction plans for the difficulties, and conducted construction overnight.
During the hot summer season, people sweated when they didn’t work, not to mention the “great stove†head that was heated up to 400 degrees Celsius. Heat wave bursts into the air and the rotary pressure worker Wang Weidong wears a wet towel on his head. To prevent the operation panel from being damaged due to heat, he uses thermal insulation to protect himself from the heat wave. The first head was finally processed in such an environment. The amount of technical indicators fully meets the requirements of the standard. The remaining three parts shall be constructed strictly in accordance with the requirements for the reheating of the furnace to be stopped within 50 minutes after the furnace is released. Looking at a piece of arched head in succession, the customer's frowning brows gradually stretched.
The four heads were welded from blanks to form the factory. More than 10 comrades in the relevant leadership, spinning class and welding class all worked overnight. They took over four days to overcome the difficulty of forming shaped materials, June 28. It was coincidence that the leaders of the National Cold Spinning Technology Association, which came to the machinery manufacturing company, questioned the manufacturing process of this head and said that this result has also filled a gap in domestic cold-spinning manufacturing technology.
On June 25th, Shandong Qilu Petrochemical Machinery Manufacturing Co., Ltd. Spinning Head Plant overcame four difficult-to-break forming holes for OCR13's 6-meter-diameter super arched head, and filled a gap in domestic cold-spinning manufacturing technology.