Process Optimization of Controlled Rolling and Controlled Cooling for HPB300 Hot Rolled Round Steel Bar Coil
HE Lu
ZUO Maofang
JIA Ning
YU Rong
LI Chao
Abstract：In order to give full play to the equipment capacity of controlled rolling and controlled cooling, the controlled rolling and controlled cooling process was optimized, the inlet temperature of finishing mill and reducing sizing mill and laying head were reduced, narrowing the temperature variation range and strengthen the air-cooling intensity. The microstructure of the product is F+P and grain size is fine and uniform, the minimum yield strength is 315 MPa and tensile strength is 500 MPa, all indexes can meet the requirements of national standards, the HPB300 hot rolled round steel wire head and tail shearing loss were reducd, the economic benefit was improved.
Keywords：hot rolled round steel barHPB300coilcontrolled rolling and controlled cooling
Publication Date：2015-05-02
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：2( 11-12 )