LHG—300型等离子焊接切割机是沈阳市电焊机厂的工人阶级紧跟伟大领袖毛主席的战略部署,以只争朝夕的革命精神,在不到二十天的时间内试制成功的。该焊机采用了比较先进的技术和工艺,如硅整流电源;电机调速,电流自动递增衰减,时间调节等都采用可控硅整流元件控制,此外并广泛采用了印刷电路及环氧树脂浇注等先进工艺。该机 LHG-300-type plasma welding machine is welding machine factory in Shenyang City, followed by the working class followed by the great leader Chairman Mao’s strategic plan to seize the revolutionary spirit of the day and night, in less than twenty days trial success. The welding machine uses more advanced technology and process, such as silicon rectifier power supply; motor speed control, automatic current increment attenuation, time adjustment are controlled by silicon rectifier, in addition and widely used in printed circuit and epoxy resin casting And other advanced technology. The machine