武钢耐火材料厂生产镁砖所用 M_1模板是采用低碳钢渗碳淬火处理,使用寿命短,换模频繁,影响生产效率。试用9Mn_2V 钢模板后其使用寿命比渗碳板提高了五倍以上,由于板面磨损均匀改善了耐火砖的表面质量。模板使用老化后经磨床磨平可继续使用,不需返修。从而缩短了制模周期,节约了钢材,仅 M_1一种模板,一年就可为国家节约资金近两万元。 The M_1 template used for the production of magnesia brick in WISCO refractories plant is carburizing and quenching with low carbon steel, which has short service life and frequent mold changing, which affects the production efficiency. The service life of the 9Mn_2V steel plate was more than five times that of the carburized plate after trial. The surface quality of the firebrick was improved due to the even wear of the plate. After the template is aged, the grinding machine can be used continuously without need of repairing. Thus shortening the molding cycle, saving steel, only a template M_1, a year can save nearly 20000 yuan for the country.