TA18钛合金卷的常规热连轧工艺研究

Research on Conventional Hot Rolling Process of TA18 Titanium Alloy Coil

TA18是一种近α型低合金成分的钛合金,作为结构件和液态介质管材,在军工、航空领域得到广泛应用,具有优良的性能.和单机架可逆轧机相比,常规热连轧具有效率高、质量好的优点.本文选择不同压下制度,研究了压下条件对TA18热轧带卷质量的影响.结果表明,精轧小压下有利于带卷厚度控制,同时可获得更好的边部质量、组织,产品的强度降低、塑性提高,更有利于满足客户的加工使用.

TA18is a kind of near-alpha-type titanium alloy with low alloying composition and excellent properties,which has been widely used in the field of military industry and aviation as structural parts and liquid medium pipes.Compared with single stand reversing mill,conventional HSM has the advantages of high efficiency and quality.In this paper,the influence of different reduction conditions on the quality of TA18hot rolled strip is studied.The results show that low rolling reduction of FM is beneficial to thickness control of TA18titanium alloy coil,and at the same time,obtaining coil with better edge quality and microstructure,decreaseing the strength and increaseing the plasticity of TA18titanium alloy coil,whichis,better to meet the processing requirement of customers.