鋼管冷斜軋工藝與試驗研究

Steel Tube Cold Cross-rolling Technology and Related Experimental Research

摘要: 針對傳統(tǒng)鋼管冷軋(拔)生產(chǎn)方式存在的問題和鋼管深加工的需要,根據(jù)斜軋過程中軋件運動和金屬變形的特點,探索了鋼管冷斜軋成型的必要條件,并采用剛塑性有限元方法,計算其變形過程的速度場、應變和應力,設(shè)計符合鋼管冷斜軋?zhí)攸c的軋輥輥型。通過理論分析和工業(yè)性試驗,證明了該工藝的可行性和實用性。該工藝能夠部分替代鋼管冷軋冷拔工藝,也可用于雙金屬管材的復合加工。

Abstract: Pinpointing the problems concerning the conventional steel tube cold-rolling(drawing) manufac-turing processes and the need for steel tube deep-processing, the requisite conditions for steel tube cold cross-rolling formation are discussed on the basis of the characteristics of the workpiece movement and metal deformation during cross-rolling. Moreover, the velocity field and strain and stress are calculated by means of the rigid-plastic finite element method. Based on the result, the roll groove in the light of the characteristics of steel tube cross-rolling is designed. It is proven by relevant theoretic analysis and industrial operation experiments that the said cold cross-rolling process is feasible and practical, and can be used to a certain extent to substitute the steel tube cold-rolling (drawing) processes, and also for processing of dual metal clad tubes.