DIRECT EMISSION SPECTROCHEMICAL ANALYZER FOR LARGE SIZE METAL MATERIAL

摘要

PURPOSE:To perform a simple and rapid analysis of a metal material, by a method wherein an opening end of a cylinder tube having a plasma arc heater is brought into contact with a metal surface to evaporate it into a metallic fine particle, which, in turn, is conveyed by a gas carrier to an emission spectrochemical analyzer having a plasma exciting source. CONSTITUTION:A surface of a metal material 3 is fused by a plasma arc heater 4 of an enclosure type cylinder tube 2 for producing a fine particle whose opening end is brought into contact with a large size metal material 3, and a metallic fine particle is evaporated. A given quantity of the metallic fine particle is conveyed by a gas carrier through a conveyance gas distributor 12 to an emission spectrochemical analyzer 27 provided with a plasma exciting source to produce a plasma flame 18. This permits the simple and rapid analysis of a large size metal material without cutting of the material to a sample.