Sampling methods for elemental analysis of materials 1. Elemental analysis of chemical composition of steels Samples for analysis of smelting steel junction boxes must be taken in representative parts of steel, molten iron or steel. The sample should be uniform and can fully represent the chemical composition of each smelting number (or tank) or batch of steel, and should have sufficient quantities to meet all analytical requirements.
2, elemental analysis sample sample can be drilled. Plane, or use some tooling mechanism. The swarf should be crushed and mixed evenly. Do not use water, oil, or other lubricants for sample preparation and chip removal and remove surface oxide scale and dirt. Product steels should also be decarburized, carburized, coated, plated metal or other foreign materials.
3, when using the drill to take sample sample, for the analysis of smelting or analysis of small-section steel products, the diameter of the drill should be as large as possible, at least not less than 6mm; hit section steel product analysis, drill diameter should not be less than 12mm.
4. Specimen specimens for instrument analysis. Before use, it should be properly ground or polished according to the requirements of the analytical instrument.
2, elemental analysis sample sample can be drilled. Plane, or use some tooling mechanism. The swarf should be crushed and mixed evenly. Do not use water, oil, or other lubricants for sample preparation and chip removal and remove surface oxide scale and dirt. Product steels should also be decarburized, carburized, coated, plated metal or other foreign materials.
3, when using the drill to take sample sample, for the analysis of smelting or analysis of small-section steel products, the diameter of the drill should be as large as possible, at least not less than 6mm; hit section steel product analysis, drill diameter should not be less than 12mm.
4. Specimen specimens for instrument analysis. Before use, it should be properly ground or polished according to the requirements of the analytical instrument.
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