SCAVENGING DEVICE, ROBOT SYSTEM, AND SCAVENGING METHOD
When purging is performed, a protective-gas adjusting device adjusts a pressure value of protective gas to be at a given first pressure value, and a pilot-air adjusting device adjusts a pilot pressure inputted to a first air-operated valve to open a first channel, and adjusts a pilot pressure inputt...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | When purging is performed, a protective-gas adjusting device adjusts a pressure value of protective gas to be at a given first pressure value, and a pilot-air adjusting device adjusts a pilot pressure inputted to a first air-operated valve to open a first channel, and adjusts a pilot pressure inputted to a second air-operated valve to close a second channel. When the purging is finished, the protective-gas adjusting device adjusts the pressure value of the protective gas to be at a given second pressure value, and the pilot-air adjusting device adjusts the pilot pressure inputted to the first air-operated valve to close the first channel, and adjusts the pilot pressure inputted to the second air-operated valve to open the second channel. |
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