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一、测定内容 1.电焊排烟除尘机组的除尘效率。 2.使用机组前后施焊环境(包括面罩内外)的粉尘浓度。 3.施焊环境氮氧化物及锰的浓度。二、测定方法及主要测试仪器 1.除尘效率的测定:在除尘器出入水平管段各设一采尘样点。用JSC-1型粉尘采样仪(一机部六设计院实验工厂)进行外部采样,遵循等速同
First, determine the content 1. Welding smoke dust removal unit dust removal efficiency. 2. Before and after using the unit welding environment (including the mask inside and outside) of the dust concentration. 3 welding environment nitrogen oxide and manganese concentration. Second, the determination of methods and the main test equipment 1. Determination of dust removal efficiency: the level of the precipitator out of a set of dust sampling points. With JSC-1-type dust sampler (a machine six design institute experimental plant) for external sampling, follow the same speed