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首页> 外文会议>41th Annual Conference of Metallurgists of CIM International Symposium on New Technology Implementation Metallurgical Processes Aug 11-14, 2002 Montreal, Quebec, Canada >'Electrolytic extraction of non-metallic inclusions in low carbon steels'
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'Electrolytic extraction of non-metallic inclusions in low carbon steels'

机译：“电解提取低碳钢中的非金属夹杂物”

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摘要

In this ever competitive world steel market, the key point to market share is quality and quality means stringent composition control and minimum number of undesirable and detrimental non-metallic inclusions, N.M.I's. It is widely accepted that N.M.I's have adverse effects on the mechanical behaviour of steels in service. In order to minimize N.M.I's concentration in steels, the mechanisms of their formation ought to be understood and for that reason the following characteristics of N.M.I's are of great importance; 1. Chemistry 2. Morphology 3. Size and Size distribution. There are two approaches in extracting the inclusions from steels; 1) Chemical extraction, where the steel matrix is dissolved in acids or halogens. 2) Electrolytic extraction, where the steel sample is electrolysed in aqueous or non-aqueous solutions depending upon the type of N.M.I's, i.e. oxides or sulphides respectively. Although chemically recovering non-metallic inclusions may appear less difficult and time consuming but the adverse effect of the chemicals on N.M.I's should not be ignored . Therefore, electrolysis of steel seems to be the preferred method for isolating N.M.I's and even for alloy carbides in steels. The present article reports on extraction of N.M.I's in a 0.05% C steel and discusses the difficulties encountered during isolation of N.M.I's from the slime.
机译：在这个竞争激烈的世界钢铁市场中，市场份额的关键是质量和质量意味着严格的成分控制和最少数量的不良和有害非金属夹杂物，即N.I. N.M.I对使用中的钢的机械性能有不利影响已被广泛接受。为了使N.M.I's在钢中的浓度最小化，应了解其形成机理，因此，N.M.I's的以下特性非常重要； 1.化学2.形态3.尺寸和尺寸分布。从钢中提取夹杂物有两种方法： 1）化学萃取，其中钢基质溶于酸或卤素。 2）电解萃取，根据N.M.I's的类型，即分别以氧化物或硫化物的形式，在水或非水溶液中电解钢样品。尽管化学回收非金属夹杂物似乎不太困难且耗时，但是化学药品对N.M.I的不利影响不容忽视。因此，钢的电解似乎是分离N.M.I甚至钢中合金碳化物的首选方法。本文报道了在0.05％C的钢中提取N.M.I的情况，并讨论了从泥中分离N.M.I的过程中遇到的困难。

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