| 摘要 |
PURPOSE:To execute automatically a measurement of a welding condition and its data processing by combining an automatic discriminating sensor system of a start and an end of welding, an inter-preheating pass temperature measuring system, and a control recording use compiling system of their data. CONSTITUTION:When welding is started, a start and an end of welding is detected automatically by a sensor unit 2, current/voltage and an arc time are operated, and its result is sent automatically to a data compiling cell 3. On the other hand, a welding terminal equipment 1 inputs various fixed values, an inter-preheating pass temperature data from a thermometer which has been attached to the terminal equipment 1, a bead length, etc. After welding of one piece or several pieces has been ended, when the bead length is inputted from the terminal equipment 1, it is collated with a welding condition measured value from the unit 2, in the cell 3, in order of the input, and a welding heat input quantity is operated automatically. Also, the cell 3 decides instantaneously whether the heat input quantity and a reference value which has been inputted in advance, of the inter-preheating pass temperature are proper or not, and makes the terminal equipment 1 execute a warning display.
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