Refractory metal carbide detection

Material Analysis 百检检测 2024-05-09

Chemical analysis methods for hard alloys - Determination of total carbon content - Gravimetric method 1- Scope: This section specifies the method for determining the total carbon content in carbides and hard alloys. This section applies to the determination of total carbon content in chromium、 lead、 molybdenum、 chromium、 titanium、 vanadium、 tungsten、 and tungsten carbides、 as well as in mixtures of these carbides with bonded metals (without lubricants) and all grades of pre sintered or sintered hard alloys produced from these carbides. Measurement range: The total carbon content is greater than 4%. The principle of the 2 methods is to oxidize carbon into carbon dioxide in a high-temperature、 pure oxygen airflow、 and if necessary、 add flux. The generated carbon dioxide is carried by oxygen into a constant amount absorption bottle and absorbed by caustic asbestos. The increment of caustic asbestos is measured、 and its value is the amount of carbon dioxide generated

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