焊接与切割设备的使用和维修(八十)——冷却风机、减压器、配比器的使用与维修

Usage and maintenance of welding and cutting machines(80)——Usage and maintenance of cooling fan,pressure reducer and proportioner

简单说明了变位机的维修与注意事项。详细介绍了冷却风机和减压器的常见故障及故障的排除方法,并对MAG焊辅机QP-1型气体混合配比器的使用与维修作了重点说明,分析了配比器的常见故障及排除方法。

This paper simply explains the maintenance and notes of positioner,and introduces the common breakdowns and solutions of cooling fan and pressure reducer in detail.It also mainly explains the usage and maintenance of QP-I type gas mix proportioner which is MAG welding auxiliary machine,and analyzes the common breakdowns and solutions of proportioner.