Henan Wuyang Steel Trade Co., Ltd. for the company 12MnNiVR steel production technology is based on the GB19189 standard, according to the relevant institute of design and development of steel, as opposed to the Japanese standard JIS G3115 standard in SPV490Q, technical requirements more is strict, in the following areas: steel requires a lower P, S content; weld crack sensitivity coefficient Pcm decreased, more conducive to steel welding; impact test sample orientation from portrait to landscape, the impact of temperature change from -10 degrees -15 degrees or lower, and the impact energy increased. 
 12MnNiVR steel quality control measures: 
 Smelting process characteristics: 1, the beginning of electric arc furnace + oxygen flux refining. 2, LF refining precise control of composition and pouring temperature. 3, VD vacuum. 
 Rolling process: 1,4200 mm rolling mill, rolling pressure, the use of controlled rolling. 2, AGC automatic control system, steel plate with a small difference. 3, steel shot blasting, steel plate to ensure good surface quality. 
 Quenching process: the introduction of the new German LOI's roll quenching machine, supporting radiant heating system, reducing the plate and then heating the surface oxide, steel roller quenching to ensure flatness. Different tempering process to ensure the appropriate thickness of the steel with good strength and toughness match. 

 The company now has HEC-G4m * 14m numerical control cutting machine 2, HEC-G6m * 14m numerical control cutting machine 2, 600-ton hydraulic machine, heat treatment furnace 1, KH-500 welding machine 20, based on user-specified products various specifications, different geometric shapes cut pieces of steel processing. Is now available for cutting the workpiece straightness every m = 0.5mm, each 100m vertical thickness = 3mm, dimensions = 1mm, precise specifications, reliable quality, size can be installed directly on the technology used, thereby reducing the processing procedures and processing costs. 

 Experts in focus, customer service, human-oriented, open innovation, the pursuit of excellence! Steel Trade Co., Ltd. Henan welcome your inquiries!