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仪器仪表耐腐蚀材料可以分为两类:一类是贵金属及稀有金属,主要有铂族金属和金,银、钛、锆、钽及其合金。这类材料耐腐蚀性能优良。另一类是耐腐蚀合金,主要为镍基、钴基,铁基及半铁镍基合金。本文专门讨论后一类合金化学分析中的溶样问题。一仪器仪表用耐腐蚀合金化学性质的特点 1 它们大多是含有大量钨,钼、铬、钛、铌、铝、锰等元素的镍基,铁基、钴基合金。 2 它们抗氧化-还原性、耐酸、碱、盐腐蚀,样品比较难分解。二溶样条件的选择
Instrumentation corrosion-resistant materials can be divided into two categories: one is the precious metals and rare metals, mainly platinum group metals and gold, silver, titanium, zirconium, tantalum and their alloys. Such materials have excellent corrosion resistance. The other is a corrosion-resistant alloy, mainly nickel-based, cobalt-based, iron-based and semi-iron-nickel-based alloys. This article specializes in the latter class of alloy chemical analysis of the sample solution. Chemical characteristics of a corrosion-resistant alloy with an instrument 1 They are mostly containing a large amount of tungsten, molybdenum, chromium, titanium, niobium, aluminum, manganese and other elements of nickel-based, iron-based, cobalt-based alloys. 2 They are antioxidant - reducing, acid, alkali, salt corrosion, the sample is more difficult to break down. Second, the choice of sample solution conditions