In many cases, the steel has not yet achieved the desired quality after the refining process. Lack of alloying elements, traces of interfering auxiliary elements or gas dissolved in the fusion process prevent the required properties to be attained. Molten molten steel is refined by a post-treatment called "secondary metallurgy". The carbon, hydrogen and nitrogen contents are further lowered. Through alloying, setting the desired level of overheating and slag impurities, the smelting properties are further improved.
The most important secondary metallurgical methods for quality and stainless steel production are the RH process (Ruhrstahl Heraeus), DH process (Dortmund Hörde), process VD (Vacuum degassing), VOD process ( Vacuum-oxygen-deodorization) and AOD (Argon-Oxygen Decarburization) process.
Advantages
The addition of:
In addition to the gases required for your process, Messer offers a wide range of equipment for optimization with Oxipyr and Oxijet.
Complete solutions for floor cleaning are provided in cooperation with our partners. In order to choose the optimal system, Messer experts first performed a comprehensive process analysis. After basic calculations and techniques, proposals are given for optimization and other procedures.
English 
Tiếng Việt 
한국어 
日本語 
简体中文