이음매 없는 강관

Seamless steel pipes are formed by rolling a preheated steel billet onto a mandrel. The mandrel is then removed from the rolled blank and cooled in a water bath to prepare for the next rolling process. This preparation also includes a graphite coating on the mandrel to ensure that the mandrel is well lubricated during the rolling process, which plays a decisive role in the subsequent quality of the seamless steel pipe. For many years, our graphite emulsion products have been the guarantee for efficient and reliable production of seamless steel pipes. Due to the use of natural graphite, the graphite coating is not only very resistant to high temperatures and pressures, but also environmentally friendly.