Heat treatment technique of stainless steel for 410L containers

• Main Authors: LI JUCANG, XU BIN, WANG JIANZE, JIN SAITE
• Format: Patent
• Language: English
• Published: 16.09.2015
• Subjects: CHEMISTRY; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS

The invention provides a heat treatment technique of stainless steel for 410L containers. The technical scheme is as follows: the heat treatment technique comprises the following steps: dephosphorizing, AOD (argon oxygen decarburization) refining, LF (ladle furnace) refining, continuous casting, trimming, hot rolling, hot pickling, cold rolling, cold wire annealing pickling and straightening, wherein in the hot rolling process, laminar cooling is not performed, the coiling temperature is controlled at 800-840 DEG C, the sheet strip is blown from the side, and the black coil drop adopts a pile cooling technique; and the cold wire annealing TV value is 40+/-5 mm*m/minute, the target TV value is 40mm*m/minute, and the material temperature is 840+/-10 DEG C. The technique cancels the hood-type annealing technique, and lowers the production cost and accelerates the production rhythm on the premise of ensuring the product structure and properties.