Hardmetals — Determination of total carbon — Gravimetric method
硬质合金与粉煤灰;总碳的测定——重量法
发布日期:
2009-09-29
ISO 3907:2009规定了测定碳化物和硬质合金中总碳质量分数的重量法。
本方法适用于
铬、铪、钼、铌、钽、钛、钒、钨和锆的碳化物,
这些碳化物和粘结剂金属的混合物,不含润滑剂,
由这些碳化物生产的所有等级的预烧结或烧结硬质合金,以及
总碳的质量分数超过4%。
ISO 3907:2009 specifies a gravimetric method for the determination of the mass fraction of total carbon in carbides and hardmetals.
This method is applicable to
carbides of chromium, hafnium, molybdenum, niobium, tantalum, titanium, vanadium, tungsten and zirconium,
mixtures of these carbides and binder metals, free of lubricant,
all grade of presintered or sintered hardmetals, produced from these carbides, and
having a mass fraction of total carbon exceeding 4 %.