17-08-2011 дата публикации
Номер: CN0102154586A
Автор:
LI LIU,
XIAOGANG LI,
BENHAI LI,
DENG LIU,
GUOSEN ZHU,
GUANGMING LIU,
JIANJUN QIAO,
HAIWEI XU,
ZHIYUAN HU,
LIU LI,
LI XIAOGANG,
LI BENHAI,
LIU DENG,
ZHU GUOSEN,
LIU GUANGMING,
QIAO JIANJUN,
XU HAIWEI,
HU ZHIYUAN
Принадлежит:
The invention relates to a method for preventing the surface of Ti-IF steel from forming crack defects, which belongs to the technical field of thin plate production. The method comprises the following Ti-IF steel production processes of: smelting, continuously casting, heating plate blanks, performing hot tandem rolling, reeling, performing acid tandem rolling, continuously annealing, leveling, and reeling to obtain finished products. The Ti-IF steel comprises the following components in percentage by weight: 0.0015 to 0.0050 percent of C, less than or equal to 0.03 percent of Si, 0.05 to 0.25 percent of Mn, less than or equal to 0.02 percent of P, less than or equal to 0.02 percent of S, 0.005 to 0.07 percent of Alt, 0.05 to 0.12 percent of Ti, less than or equal to 0.007 percent of N and the balance of Fe. In the rolling process, the plate blank heating temperature is between 1,200 and 1,300 DEG C; the final rolling temperature is between 890 and 920 DEG C; the reeling temperature is ...
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