发明名称 |
Oil removing method for a pipe coil |
摘要 |
A pipe coil is heated in the furnace of a heat treatment apparatus. The oil adhered to the inside of the pipe is vaporized by this heating. In this state the oil removing gas is fed at one end into the pipe which gas is in the high temperature enough to maintain the vaporizing condition of the oil. The vaporized oil within the pipe is discharged by the feeding of the gas at the other end of the pipe while the oil is in the vaporized state.
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申请公布号 |
US5784803(A) |
申请公布日期 |
1998.07.28 |
申请号 |
US19960755500 |
申请日期 |
1996.11.22 |
申请人 |
DAIDOTOKUSHUKO KABUSHIKIKAISHA |
发明人 |
TOYODA, KATSUMASA;MIYAJIMA, TAKASHI;UMEDA, YOSHIHIRO |
分类号 |
B21C37/30;B21C43/00;C21D9/08;C23G5/00;(IPC1-7):F26B7/00 |
主分类号 |
B21C37/30 |
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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