Advantages of Angang pressure vessel co., ltd.

1. technical advantages: the company was established in 1970, and has a license for design, manufacture and installation of Class I, II and III pressure vessels (including spherical tanks), a sound quality assurance system, strong technical force for design, manufacture and installation of pressure vessels and spherical tanks, complete tooling and equipment, and complete detection means. As a member of China Mechanical Engineering Society, he is also a member of the national localization research of large-scale complete sets of engineering steel. Since 1988, he has participated in the national research group of major complete sets of engineering steels, and has successively conducted the forming and welding process tests of high-strength steel, low-temperature steel and high-toughness pressure vessel steel. New domestic steel grades such as CF-62, 15MnNiDR, 15MnNbR and 09MnNiDR were first applied to the spherical tank project by our company, and we participated in the compilation of Steel for High Performance Pressure Vessels and Pressure Steel Pipes. Zhang Lianyou, the general manager of our company, is a member of the expert group of spherical tank standards of the National Boiler and Pressure Vessel Standardization Committee, and participated in the revision of GB 12337 "Steel Spherical Tank".

2. Optimization of welding process and heat treatment process: As the company has conducted a lot of experimental research on imported CF steel and domestic CF steel, such as welding process evaluation test, processing and forming evaluation test, heat treatment process evaluation test of spherical tank parts, and overall heat treatment evaluation test of spherical tank, etc., it has accumulated a lot of experimental data and optimized the best process parameters for producing spherical tank products. The spherical tank project completed by our company has never had a quality accident, and it has been running for many years without defects.

3. heat treatment qualification: the company passed the evaluation of "agreeing Anshan iron and steel pressure vessel co., ltd. to carry out post-weld heat treatment of CF series steel spherical pressure vessels" by the national boiler and pressure vessel standardization technical Committee. Due to many quality accidents in the manufacture of spherical pressure vessels made of CF series steel plates, the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) requested enterprises related to CF series steel spherical pressure vessels to carry out post-weld heat treatment on CF series steel spherical pressure vessels withNo. QJT[2006]4 1 andNo. QJT[2007]52 "Opinions on strengthening the management of the use of CF series steel plates in pressure vessels".

4. Patented technology: According to the characteristics of high-strength low-temperature steel, the company summarized the quality accident of Xi 'an imported French spherical tank and the cracking accident of BASF spherical tank pillar in Yangzi, made a special study on the structural type of spherical tank, developed the long round smooth connection U-shaped pillar of steel spherical tank, and applied for a patent. This patent can effectively solve the stress concentration problem of high-strength steel at the abrupt position of spherical tank column structure and the maximum stress position.