Three roll six frame core rod continuous rolling mill

The continuous rolling mill is the most important deformation tool for steel pipe production, and its main function is to "reduce the wall". This new type of continuous rolling mill is an improved version based on the Italian Danieli FQM rolling mill, which is a 5+1 three roll adjustable limit core rod continuous rolling mill. It realizes core technologies such as online rod removal and automatic hole adjustment, and ensures efficient and high-quality production of seamless steel pipes under multi-level online inspection and high-level automation control, The three roll hole has small ovality, good sealing performance, and uniform deformation, achieving high-quality wall thickness accuracy and smooth inner and outer surface quality. The wall thickness accuracy is increased by 25%, and the surface quality can meet the requirements of high-end products such as high-end petroleum oil casings (110-13Cr, etc.), H2S resistant pipeline pipes (X65QS, etc.), and gas cylinder pipes (34CrMo4, etc.).