| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an automatic diagnosis method for a hot scarfing oxygen pressure control system where, in a hot scarfing apparatus in which an electric signal output from a sequencer is converted into gas pressure by a plurality of converters, and the gas pressure is input into a main regulator so as to control hot scarfing oxygen pressure, in the case functional deterioration or the like is generated in the converter on the way, this can be easily detected even in the initial stage, and to provide a device therefor. <P>SOLUTION: The automatic device for a scarfing oxygen pressure control system is used in a hot scarfing apparatus in which an electric signal output from a sequencer 4 is converted into gas pressure by a plurality of converters 5, 6, and the gas pressure is inputted to a main regulator 3 so as to control hot scarfing oxygen pressure. The device includes: input value detection means of the respective converters 5, 6; an output value detection means; a conversion ratio calculation means 10 connected to them and calculating the conversion ratio of each converter; and a diagnosing apparatus 11 diagnosing the converter whose conversion ratio is made off from the set ratio as the abnormal one. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT</p> |
