高炉布料溜槽壳体选材分析  

Cause Analysis of Chute Chute Damage in Blast Furnace Top

作　　者：杨凤民 薛云[2] 

机构地区：[1]秦皇岛秦冶重工有限公司,河北秦皇岛066318 [2]秦皇岛职业技术学院,河北北戴河066100

出　　处：《冶金设备》2017年第5期50-52,10,共4页Metallurgical Equipment

摘　　要：通过对高炉炉顶奥氏体不锈钢布料溜槽几起损坏事故的原因分析,得知,奥氏体不锈钢由于其本身具有的"475"脆性,以及高炉炉顶恶劣的运行环境的影响,极易发生脆化及晶间腐蚀而损坏,奥氏体不锈钢不适合做高炉炉顶布料溜槽部件。根据不同工况条件选用耐热钢,寿命显著提高。Based on the analysis of the causes of several accidents in the austenitic stainless steel fabric chute of blast furnace top,it is found that the austenitic stainless steel has its influence on the＂475＂brittleness and the harsh operating environment of the blast furnace. Because brittle and intergranular corrosion is easy to occur,austenitic stainless steel is not suitable to be used for the blast furnace top chute. The use of heat-resistant steel,significantly improved life.

关 键 词：布料溜槽 奥氏体不锈钢 “475”脆性 晶间腐蚀 耐热钢 

分 类 号：TF321.3[冶金工程—冶金机械及自动化]