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我厂是有近二十年历史用无芯工频感应电炉熔炼生产高硅钢耐蚀铸铁件的专业水泵厂。近几年来,我厂针对高硅钢耐蚀铸铁在高温下吸气能力强,长期存在气孔缺陷,作了全面的分析和探讨,推行了质量管理,同时在生产实践中采取了一系列措施,铸件质量显著提高。一、气孔的形成及控制1.由于熔铸高硅钢耐蚀铸铁的过程中,具有大量过饱和的 Si,因此,在高温下铸铁具有很强的吸氢能
I plant is nearly 20 years of history with core-frequency induction furnace smelting production of high silicon steel corrosion-resistant professional pump factory. In recent years, I plant for high silicon steel corrosion resistant cast iron at high temperatures, strong suction capacity, long-term presence of porosity defects, made a comprehensive analysis and discussion, the implementation of quality management, while taking a series of measures in the production practice, casting Quality is significantly improved. First, the formation and control of stomatal 1. As the high-silicon cast iron corrosion of cast iron in the process, with a large number of supersaturated Si, therefore, cast iron at high temperatures has a strong hydrogen absorption