Buried metal pipe corrosion prevention method
专利汇可以提供Buried metal pipe corrosion prevention method专利检索，专利查询，专利分析的服务。并且PURPOSE: To provide a method of preventing corrosion by accurately detecting the condition of corrosion of buried pipes, by making a buried pipe-earth potential measurement using the current interrupter method and at the same by making a measurement of a current density flowing from or into the buried pipe.
CONSTITUTION: When probe 10 and buried pipe 1 are connected by means of lead line 11, current i consisting of anti-corrosion current 6 and stray current 8 flows into probe 10. When probe 10 and buried pipe 1 is disconnected by means of current interrupter 12, current i flowing into probe 10 can be cut completely. For this reason, it is possible to measure the true probe-to-earth potential, excluding iR, by the current interrupter method. Also, when the current flowing between probe 10 and buried pipe 1 is measured by ammeter 13, it is possible to obtain the current density flowing from or into probe 10.
COPYRIGHT: (C)1979,JPO&Japio，下面是Buried metal pipe corrosion prevention method专利的具体信息内容。
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