On October 15, the spinning workshop of SDQL Petrochemical Machinery Manufacturing Co., Ltd. produced a head of titanium 304 stainless steel composite plate (12+3) with a diameter of 2500 mm and a wall thickness of 15 mm. The head was tested for uniform thickness, hardness, The accuracy is within the standard range. The creation of the limit for the entire plate spinning of titanium-stainless steel composite panels broke the precedent that such materials cannot be formed by special materials experts, and became the first domestic company in China to master high-strength, large-size reactor head one-time cold forming technology enterprise.
After receiving this task, the spinning workshop of SSDQL immediately set up a research team to set up a special project for the special material composite plate head, formulate a detailed and thorough construction plan, and finally, with the joint efforts of relevant personnel in the workshop One spin was successful.
When processing large-size and thick plate heads, enterprises usually use hot press forming. Due to uneven heating, steel structure and structure, and large finished product size tolerances, product reliability and production efficiency are restricted. This technological breakthrough is conducive to improving production efficiency under the premise of ensuring higher processing accuracy in future production. At the same time, cold spinning has less impact on the structure of steel, and the pressure resistance and destructive resistance of the product in use are also better than Traditional processing methods.
SDQL Petrochemical Machinery Manufacturing Co., Ltd. was founded in 1973, focusing on the R&D and manufacturing of heavy pressure vessels, integrating pressure vessel manufacturing, polyester device equipment manufacturing, head cold spinning, mechanical processing, LNG equipment manufacturing, plastic mold processing, etc. The integrated Sinopec backbone machinery manufacturing enterprise is one of China's main production bases for pressure vessels, polyester equipment and cold spinning heads. It is a designated manufacturer of missile, spacecraft and carrier rocket accessories by the Ministry of Aeronautics and Astronautics, and the national machinery industry Fortune 500 companies, strong in equipment manufacturing technology.
The company has more than 800 employees, including more than 150 engineers and technicians with professional titles. The company's total assets are 500 million yuan. The factory covers an area of 450 acres and has a construction area of 150,000 square meters.
The company has the following qualifications:
A1 level single-layer high pressure vessel design and manufacturing license, A2 level third category low and medium pressure vessel and C1 level railway tank car design and manufacturing license, A3 level boiler pressure vessel head manufacturing license; American ASME pressure vessel design and manufacturing license Qualification certificate (U, U2 steel seal); ISO9001 quality management system certification; national first-level measurement unit certification; safety, environment and health (EHS) management system certification.
The company has first and second heavy container workshops, comprehensive mechanical processing workshops, cold spinning head workshops, LNG equipment manufacturing workshops, and physical and chemical, metrology, and non-destructive testing centers. It has W12NC-260×3500 four-roll large-scale plate rolling machine, W11S–130×3500 three-roll plate rolling machine; 600T/260T×31 meters single crane for lifting 600 tons; 3.9×3.5×14 full-fiber trolley type resistance High temperature furnace (1200℃), 6×6×20m and 4.2×4.5×25m trolley-type resistance furnace (750℃), 7×6×27 large-scale desktop gas heat treatment furnace (1200℃); the maximum processing diameter is 10m And two large CNC vertical lathes of 6.3m, CK5263/2 double-column CNC lathe, TK6922A large floor boring and milling machine; head spinning machine imported from Germany; DZ-6/1000 linear accelerator (penetrating steel plate thickness 50 -280mm), E192, Co60 X-ray source flaw detector, single wire and double wire narrow gap submerged arc welding machine, electroslag and arc submerged arc surfacing welding machine with pole, special small hole surfacing welding machine, domestic and imported pipe/tube Plate TIG automatic welding (outside welding and deep hole welding), 30-ton welding positioner and other large-scale equipment and various advanced welding equipment, machining equipment, non-destructive testing and physical and chemical testing equipment more than 370 sets (sets); Theodolite for axial measurement; it can perform on-site ferrite content detection, microscopic metallographic detection, chemical composition spectrum detection, and hardness detection; it has equipment and technical strength for tempering embrittlement step cold testing, and can complete various low-temperature impact and High temperature tensile and other mechanical properties test. At present, the processing capacity and comprehensive strength of the enterprise rank among the top in China.
SDQL has made great contributions to China's petroleum and petrochemical industries, especially the localization of imported equipment and aerospace industry. Products are exported to Japan, France, South Korea, Bangladesh, Sudan, Algeria, Russia, India, Egypt and other countries.