公开(公告)号：EP1022347A4

公开(公告)日：2004-05-06

申请号：EP99926832

申请日：1999-06-29

申请人： JFE STEEL CORP

发明人： TANIKAWA KATSUMI ,  IMAJUKU TAKUMI ,  OTA JUN ,  ARAKI KENJI

IPC分类号： C21D8/02 ,  C21D9/46 ,  C21D9/52 ,  C22C38/00 ,  C22C38/04

CPC分类号： C21D9/52 ,  C21D8/0273 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/04

摘要： A method for producing a raw plate for a surface treatment plate for a can using continuous annealing which comprises a step heating and soaking a cold rolled plate of a low carbon aluminum-killed steel, which contains C: 0.1 wt.% or less and N: 0.001 to 0.015 wt.%, to a temperature higher than the recrystallization temperature thereof, a step primarily cooling, after recrystallization, to 350 DEG C to 480 DEG C with an average cooling rate greater than 100 DEG C/sec and less than 300 DEG C/sec, a step conducting an overaging treatment with no re-heating after the aforementioned primary cooling, and a step finally cooling after the overaging treatment and conducting a temper rolling, wherein the temperature of the soaking is controlled according to the desired degree of refining and the heat cycle in the steps from the primary cooling downward is approximately the same, being independent of the degree of refining. This method can be used for separately producing various raw plates having various degrees of refining over the whole range from a soft material to a hard material, using a single CAL facility which is compact and does not entail great expense to construct, without lowering productivity or yield, and further at low costs and with stability.

公开(公告)号：EP1070765A4

公开(公告)日：2008-10-08

申请号：EP99912060

申请日：1999-03-31

申请人： JFE STEEL CORP

发明人： ISHII TOSHIO ,  ISHIOKA MUNEHIRO ,  NOMURA SYU-JI ,  OHSAKI YASUNORI ,  HATAKEYAMA SEISHI ,  AKASHI KENTARO ,  NAGAYAMA RYUJI ,  HARADA KOZO ,  MIYAKAWA YOICHI ,  KUNIOKA KAZUO ,  ARAKI KENJI ,  ISHIDA NOBUYUKI ,  YAMASHITA KEISHI ,  KUWANA TERUHISA ,  UESUGI MOTOI

IPC分类号： C23C2/00

CPC分类号： C23C2/003 ,  C23C2/00

摘要： A hot dip zincing method comprising the steps of dividing a plating vessel storing molten metal therein into a plating tank and dross removing tank, dipping a steel strip into molten metal bath in the plating vessel for hot dip zincing, transferring the molten metal bath in the plating vessel to the dross removing tank, removing in the dross removing tank dross in the molten metal bath, and returning the molten tank in the dross removing tank to the plating tank via an opening provided in the plating tank. The plating device comprising a plating tank, a dross removing tank, means for transferring the molten metal bath in the plating tank to the dross removing tank and the opening provided in the plating tank for returning the molten metal bath in the dross removing tank to the plating tank.