| 发明名称 |
ELECTRIC PROTECTION METHOD |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electric protection method capable of controlling the amount of polarization in a range suitable for electric protection without using a reference electrode when carrying out electric protection. <P>SOLUTION: The electric protection method is carried out by supplying electric current to a steel from an anode in a manner of controlling the amount of polarization calculated by subtracting the electric potential E<SB POS="POST">c-io</SB>of the steel from the natural potential E<SB POS="POST">c-corr</SB>thereof within a prescribed range. The method includes calculating the natural potential E<SB POS="POST">c-corr</SB>of the steel and the instant-off potential E<SB POS="POST">c-io</SB>thereof using the polarization curve of the anode, and carrying out the supply of current in a manner of controlling the amount of polarization within a prescribed range while setting the potential difference V<SB POS="POST">ac-io</SB>between the anode and the steel measured immediately after cutting off the current supply. <P>COPYRIGHT: (C)2013,JPO&INPIT |
| 申请公布号 |
JP2012207251(A) |
申请公布日期 |
2012.10.25 |
| 申请号 |
JP20110072268 |
申请日期 |
2011.03.29 |
| 申请人 |
SUMITOMO OSAKA CEMENT CO LTD |
发明人 |
MINEMATSU TOSHIKAZU;WAKASUGI MIKIO;SUZUKI YASUHIRO;YAMAMOTO MAKOTO;KASHIMA ATSUSHI;HONDA KAZUYA |
| 分类号 |
C23F13/00 |
主分类号 |
C23F13/00 |
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