发明名称 |
PROCESS FOR CONTINUOUSLY ANNEALING OF A COLD ROLLED STEEL STRIP |
摘要 |
The present invention involves a concept of combining the following: using instead of a direct fired furnace a radiation heating furnace, thereby preventing the formation of an appreciable oxide layer during the stages for heating to and holding within the requisite annealing temperature range; cooling the annealed steel strip by a cooling medium consisting of a mixture of gas and liquid, and; removing the oxide film formed during the cooling stage, by means of pickling at the final step. In the present invention it is possible to eliminate the surface-quality problems caused by conventional processes and simultaneously to omit the reheating for overaging of the steel strip. |
申请公布号 |
DE3068827(D1) |
申请公布日期 |
1984.09.06 |
申请号 |
DE19803068827 |
申请日期 |
1980.12.22 |
申请人 |
NIPPON STEEL CORPORATION |
发明人 |
NITTO, HAJIME;NAITO, HIROMITSU;SAITO, TAKAO |
分类号 |
C21D9/52;(IPC1-7):C21D9/52 |
主分类号 |
C21D9/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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