| 摘要 |
Sampling device for molten metals comprising a carrier tube having an immersion end, and a sample chamber arranged in the carrier tube (4) and having an inflow conduit (3) with an inflow opening inside the sampling chamber and with an outer open end of the inflow conduit whereby the outer open end of the inflow conduit is surrounded by a protective cap (6), whereby the protective cap having a metallic body with an inner side, directed towards the inflow conduit and an outer side. It is characterized in that at the outer side a layer (5) of a material is arranged, whereby the material comprises a compound which decomposes and forms water vapor if immersed in molten steel or molten iron or molten slag in order to improve the known samplers and to allow a more accurate measurement of elements having low concentrations. It further refers to a cap and its use. |
