利用氧—乙割炬进行金属切割下料是目前国内各制造厂家普遍使用的工艺手段之一。但在使用过程中,由于操作人员的素质因素或其他多种原因,特别是在切割厚金属时,往往使割炬嘴达不到使用寿命的要求,造成不必要的浪费。我厂年平均消耗各类割炬嘴约230个。消耗割炬嘴的费用达4600元左右,虽对整个生产成本来说是很微小的。但从开源节能角度出发,可以用较小的成本获取较大效益,是不利的。 The use of oxygen - B cutting torch cutting metal is currently used by manufacturers all over the world one of the means. However, during use, due to the quality of the operator or other various reasons, especially when cutting thick metal, the torch mouth often does not meet the service life requirements, resulting in unnecessary waste. I plant an average annual consumption of various types of cutting torch about 230. The cost of cutting torch mouth up to 4600 yuan, although the entire production cost is very small. However, from the point of view of revenue and energy saving, it is unfavorable to obtain greater benefits with smaller costs.