Thin strip casting of austenitic stainless steel, steel plate cold rolled thin strip and method of manufacture.

摘要

This invention relates to a casting austenitic stainless steel OCCURRED OVER A FUNDIDORA CONTINUOUS DOUBLE DRUM, a steel plate cold rolled, and a method of manufacturing these and the objectives are to obtain a steel plate austenitic stainless FREE THIN EMERGENCE OF ROUGH SURFACE DURING COLD molding operation. OCCURS ONE PIECE FINA PRODUCTION BY A METHOD OF CONTINUOUS CASTING OF DOUBLE ROLL WITH THE DEGREE OF SEGREGATION OF NI, defined by the following equation (1), ON THE PART OF THE CASTING THAT IS CLOSE TO THE CENTER OF A SECTION CROSS OF REGULATED TO NOT LOSE 0.9, AND COMPONENTS OF CASTING ARE COVERED SO THAT THE PERCENTAGE OF DELTA-Fecal defined by equation (2) FOLLOWING IS NOT LESS THAN A 6 BEING THE CASTING RESULTING SUBJECT TO ROLLED COLD ONE OR TWICE FOR A STEEL PLATE. ACCORDING TO THIS METHOD, Colada is made with a pressure force DRUM per unit length 3-25 KG / MM WIDE applied in the direction DRUM COOLING ON A POINT OF CONTACT. The degree of segregation NI =% AVERAGE AMOUNT OF NI, PART secreted / (%) AMOUNT OF MEDIUM OR IN A CASTING ... (1) (5) Fecal = 3 DELTA (CR + 1.5 SI + MO + O.5 NB) 2.8 (NI + 0.5Cu + + 30C + 30N 0.5MN) MASA) ... (2).