Double-freguency Quenching Unit and Heat Treatment Process for Cold-rolling Work Rolls

Chinese-made double-freguency quenching unit(Low and intermediate frequencies),electrical furnace and deep-freezing unit for cold-rolling work rolls were introduced.The general situation of the units,heat treatment process and quality of the rolls were described.In addition,the performances,heat treatment processes and investment cost of the units made in Gongchang Co.were compared with these made in Belguim.