In accordance with the austenization microstructure transformation principle,to compare the process characteristics of open-fire furnace,muffle and semi-open-fire furnace with stainless steel tube.

• 根据奥氏体化组织转变原理,比较明火炉和马弗炉及不锈钢管式半明火炉的工艺特点,分析和探讨明火炉的优势和工艺特性。