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本文叙述了用氮作载气的ITHAC-02型熔融法(NCF)的设计、原理和操作,包括为了获得与真空热抽法相当的准确度所需的操作方法。本分析方法不仅适合于高锌或高镁之铝合金,而且完全适合于纯铝的分析。最后,还将讨论从熔融金属或成材(铸锭或短条)中取样的有关问题。引言在实验室条件下,要测定铝和铝合金中的氢总是困难和费时的,这是由于氢含量极低而直接造成的。当被测样品含量在0.1～0.5厘米~3/100克左右时
This paper describes the design, principles, and operation of the ITHAC-02 Melting Process (NCF) using nitrogen as a carrier gas, including the operating methods required to obtain comparable accuracy to vacuum thermal pumping. This method of analysis is not only suitable for high zinc or high magnesium aluminum alloy, but also fully suitable for the analysis of pure aluminum. Finally, the issues related to sampling from molten metal or ingots (ingots or short bars) will also be discussed. Introduction It is always difficult and time-consuming to determine hydrogen in aluminum and aluminum alloys under laboratory conditions, as a direct result of the extremely low hydrogen content. When the measured sample content of 0.1 to 0.5 cm ~ 3/100 grams or so