我省第一座4.5吨/时冷风卡腰炉最近在沙市铸造厂试验成功并投入生产。经市机械工程学会组织有关专业人员现场测试,各项技术指标达到设计要求。这座卡腰炉是在湖北省机械研究所指导下,由一座4.2吨/时两排大间距冲天炉改建的。与改建前相比,炉温提高20℃以上,每小时金属熔化量增加0.3吨,每吨铸铁件成本可降低25元。据测算每年可为国家增加收入10多万元。 The province’s first 4.5 tons / hour cold wind card waist furnace recently in Shashi foundry test success and put into production. Mechanical Engineering Society organized by the city of professionals on-site testing, the technical indicators to meet the design requirements. This card waist stove is under the guidance of Hubei Institute of Machinery, by a 4.2 ton / hour two rows of large spacing cupola conversion. Compared with the pre-renovation, the furnace temperature increased by more than 20 ℃, the amount of metal melting per hour increased by 0.3 tons, the cost per ton of cast iron can be reduced by 25 yuan. It is estimated that an annual increase of more than 100,000 yuan for the country’s income.