Control method of hot-rolled bearing steel network carbide

• Main Authors: ZHU TIANHAO, YANG SHIZHAO, ZHOU ZHAN, YU JIE, JIANG HONGLIANG
• Format: Patent
• Language: Chinese; English
• Published: 19.03.2021
• Subjects: CHEMISTRY; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

The invention belongs to the technical field of bearing steel treatment, and provides a control method of hot-rolled bearing steel network carbide. The control method comprises the following steps that S100, hot rolling treatment is carried out on a bearing steel rolled piece; S200, a circulating water curtain cooling line is established; S300, the temperature of the bearing steel rolled piece iscollected before the bearing steel rolled piece enters a water curtain; S400, the water flow in the water curtain and the moving speed of the rolled piece on a roller way are adjusted; and S500, the temperature of the bearing steel rolled piece is collected when the bearing steel rolled piece is discharged out of the water curtain. Corresponding experimental data are obtained through multiple experiments and comprise the influence of different water yield and roller way running speeds on the cooling speed of the bearing steel rolled piece, so that compared experimental data are formed, and during subsequent bearing st