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Publication of DD107216A5publicationCriticalpatent/DD107216A5/xx
C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
C21D1/84—Controlled slow cooling
B—PERFORMING OPERATIONS; TRANSPORTING
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21B—ROLLING OF METAL
B21B43/00—Cooling beds, whether stationary or moving; Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed
B21B43/02—Cooling beds comprising rakes racks, walking beams or bars