据日刊报道 ,随着钢铁材料的轧制技术的发展 ,又不断开发出几种新的技术。其中有高速大变形附加技术和急速加热技术、急速冷却技术。轧材内部结构控制 ,例如结晶的超微细化及结晶方位的完全控制 ,是控制强度、延性和韧性等的必要技术。因此 ,作为高速大变形附加技术 ,所强烈要? According to the daily magazine, with the development of rolling technology for steel materials, several new technologies have been continuously developed. Among them are high-speed large deformation additional technology and rapid heating technology, rapid cooling technology. The control of the internal structure of the rolled material, such as the ultrafine crystallization and complete control of the crystal orientation, is an essential technique for controlling strength, ductility and toughness. Therefore, as a high-speed large deformation additional technology, strongly want?