Quality requirements for stainless steel reducer

　　With the rapid development of science and technology, stainless steel reducer have been widely used in aviation, electronic, chemical, atomic energy and other industries, and the quality of stainless steel reducer is becoming more and more demanding. Based on the forming characteristics and finite element principle of the LD three roll cold rolling mill, a large nonlinear finite element simulation software MSC. Marc is applied to the numerical simulation analysis of the cold rolling process of the 302 stainless steel reducer in three rolls.

　　The research results of 24 inch buttweld concentric SS304 stainless steel reducer have certain guiding significance for actual production. The effects of different technological parameters such as feed rate, rotation angle, friction coefficient and opening angle on the rolling results are emphatically analyzed. The influence of different feed rate and opening angle on rolling force and the effect of rotation angle on deformation induced motion of pipe are discussed. Through the comprehensive analysis of simulation results, reasonable process parameters are obtained, which provides basis for parameter optimization. It can significantly improve the mechanical properties, dimensional accuracy and surface quality of stainless steel pipe fittings reducer.