Qilu Petrochemical Machinery Manufacturing Company fills gap in cold spinning manufacturing technology

Recently, the spinning head factory of Shandong Qilu Petrochemical Machinery Manufacturing Co., Ltd. has overcome four difficulties in forming and forming a large arched head with OCR13 diameter of 6 meters, and filled a blank of domestic cold spinning manufacturing technology.

On June 20, several customers of Sinopec Sanjian Company found the spinning head factory of the machinery manufacturing company from Zhoushan, Zhejiang. They ignored the sweat on their foreheads and first told the operators about the purpose of their trip. It turns out that Sinopec Sanjian Company urgently needs to process four large-size arch caps made of OCR13 in the construction of the project. They have gone to Jiangsu Yixing, Wuxi, Henan Xinxiang and other head manufacturers because of the high technical content and can not undertake. In a factory in Wuxi, only a few times of spinning to crack the base metal, it is their only hope. This is another serious test of the level of technology and technology. Leaders, technical and operational personnel of the head factory opened a special meeting and thought that they could make bold attempts to accumulate experience for future production. The OCR13 material is characterized by high hardness, poor plasticity, and difficulty in forming. In the absence of any reference in the technical design, they first carried out the pressure test, and the result ended with the cracking of the base metal. The factory leaders of the in charge of technology have further developed a bold and detailed construction plan for the difficulties and construction overnight.

It’s summer, it’s sweating when you don’t work, not to mention the “great stove” head that is heated up to 400 degrees Celsius. The heat wave rushed to the surface, and the spinning presser Wang Weidong had a wet towel on his head. In order to avoid the heat damage of the operation panel, the cotton wool was used for protection, and a giant model was placed in front of the body to resist the heat wave. The first head is finally processed in this environment, and the technical indicators are in full compliance with the standard requirements. The remaining three pieces are strictly in accordance with the requirements of 50 minutes of furnace shutdown and must be shut down to furnace heating. Looking at a piece of arched heads, the brows of the customer gradually spread out.

The four-piece head was welded from the blank to the forming factory. During the period, more than 10 comrades in the leadership, spinning class and welding class all worked all day long. It took only four days to overcome the difficulties of forming the shaped material, June 28 The leader of the National Cold Spinning Technology Association, which came to the mechanical manufacturing company, said that after the examination of the manufacturing process of this one, this achievement filled a gap in the domestic cold spinning manufacturing technology. Source: Sinopec News Network