烟台切割机械厂研制的YLG-50/80(即50安培和80安培)空气等离子切割机,于1990年4月13日由山东省商业厅主持召开了科技成果鉴定会。与会代表一致认为空气等离子切割机是一种金属热切割加工、下料的新技术,是对传统氧-乙炔火焰切割的一种补充和发展,它具有切割速度快、切口质量好、节省能 The YLG-50/80 (that is, 50 amps and 80 amps) air plasma cutting machine developed by Yantai Cutting Machinery Factory convened the Scientific and Technological Appraisal Meeting on April 13, 1990 under the auspices of Shandong Provincial Department of Commerce. The participants agreed that the air plasma cutting machine is a metal cutting, cutting the new technology, is a traditional oxygen - acetylene flame cutting a complement and development, it has a cutting speed, cutting quality, saving energy