The seamless steel pipe factory entering the 21st century adheres to the technical reform policy of "high starting point, low investment, fast output, and high efficiency". In 2002, it invested 298 million yuan to introduce today's The world's most advanced Ф 159MPM limited-mandrel five-stand continuous pipe rolling machine from Germany's SMS Mill, Italy's Ansaldo electronic control equipment and Austria's MFL company's pipe saw have implemented large-scale technical transformation of the AG unit. The project officially started on July 25, 2002 and reached production in August 2003. The transformed Ф 159MPM unit has set three new records among imported units of the same type in China: “minimum engineering investment, shortest construction period, and fastest production speed”.
In order to adapt to the requirements of market economy development, further improve product quality, and expand production scale, on July 7, 2004, large-scale technical transformation was carried out on the Ф 140 unit with backward equipment and equipment. The modified unit is a Ф 2 19 improved automatic pipe rolling unit. The electrical system adopts German SIEMENS and American AVTRON full digital control devices; the automation system adopts American GE Company's 9030 series PLC, Ethernet and PROFIBUS-DP network connection forms for automated control. ; The mechanical system adopts advanced equipment such as the small-angle tapered roller of the punching machine, the all-round hydraulic device of the pipe rolling machine, the GC roll gap automatic control device of the pipe rolling machine, and the high-precision three-roller sizing machine. The improved Ф 2 19 improved automatic pipe rolling unit has a production capacity of 250,000 tons.
This unit is a first-class automatic pipe rolling unit of its kind in China that Ansteel designs, manufactures and installs by itself, and has independent intellectual property rights. Ф 2 19 The completion and commissioning of the automatic pipe rolling unit has filled the gap of Anshan Iron and Steel Co., Ltd. being unable to produce large-diameter seamless steel pipes.
In order to further occupy the large-diameter seamless steel pipe market in Northeast China, starting from August 5, 2005, the existing cold drawing workshop was used, with an investment of 7.6 million yuan, and a large-diameter pipe expansion pipe was built in November 2005. The production line has an annual designed production capacity of 25,000 tons. The outer diameter of the production specifications ranges from 245 to 340mm, and the wall thickness ranges from 7 to 18 mm.
Ansteel's seamless steel pipe products strictly implement internal control standards during the production, manufacturing and inspection processes to keep various product parameters under optimal control, including the outer surface, inner surface, wall thickness, Outer diameter, geometric dimensions, mechanical properties, etc. In order to strengthen the production process and product quality, in 1997, it successfully passed the ISO9002 quality management system assurance; in 1998, it passed the American Petroleum Institute API certification; in 2001, it passed the ISO14001 environmental system certification; in 2002, it passed the GB/T28001 occupational health and safety management system certification to form a complete occupational health, environmental protection, safety management, and product quality assurance system.
Through continuous efforts, the quality of Angang's seamless steel pipe products has been greatly improved. From 1999 to 2004, it won the China Metallurgical Products Physical Gold Cup Award; from 2002 to 2004, it won the title of Customer Satisfaction Enterprise in Liaoning Province for three consecutive years; in 2004 , Φ 159MPM continuous pipe rolling unit production technology won the second prize of Metallurgical Science and Technology and the second prize of Liaoning Province Science and Technology Achievements.
With the continuous deepening of large-scale technological transformation, Anshan Iron and Steel's overall equipment level has improved, and its core competitiveness has been significantly enhanced. The establishment of Ф 159MPM and Ф 219 units marks that Anshan Iron and Steel's seamless steel pipe products have entered the contemporary steel industry. Anshan Iron and Steel Co., Ltd. will strive to meet the various needs of users with high-quality product quality and thoughtful and convenient services.