论文部分内容阅读
一、概述硫酸是重要的化工原料,常温下的稀硫酸或浓硫酸的腐蚀性较弱,一般选用0cr18Ni12Mo2Ti不锈钢即可适用;但中等浓度的,特别是高温中等浓度硫酸的腐蚀性极强,一般的不锈钢均不能满足使用要求。为此,各国相继开发了一些耐硫酸不锈钢.二十年代初,在奥氏体不锈钢中添加
First, an overview Sulfuric acid is an important chemical raw materials, dilute sulfuric acid at room temperature or concentrated sulfuric acid corrosive weaker, the general selection of 0cr18Ni12Mo2Ti stainless steel can be applied; but moderate concentrations, especially high concentrations of sulfuric acid in the strong corrosive, in general Stainless steel can not meet the requirements. To this end, various countries have developed a number of sulfuric acid-resistant stainless steel. The early twenties, in austenitic stainless steel added