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在毛主席“工业学大庆”和“自力更生,艰苦奋斗,破除迷信,解放思想”的光辉思想指引下,我厂铸造车间全体革命工人发扬了大庆工人阶级艰苦创业的革命精神,对原有一座结构笨重、耗焦量大(焦铁比只有1∶5~1∶6)、铁水温度低(1320℃~1350℃)、铸件质量差、产品成本高的旧式冲天炉宣战。在学习外单位先进经验的基础上,结合我厂具体实际因地制宜地学创结合,着手对冲天炉进行改革,经过实践,认识,再实践,再认识的多次反复,终于试制成功了一座结构简单、操体方便、焦耗低和造价低廉的多排小风口曲线炉膛热风化铁炉。
Guided by the glorious ideology of Chairman Mao’s “Industrial Daqing” and “self-reliance, hard work, superseded superstition and emancipation of the mind,” all the revolutionary workers in the foundry workshop of our factory carried forward the revolutionary spirit of the arduous pioneering work of the working class in Daqing. Bulky, heavy consumption (iron and iron ratio of only 1: 5 ~ 1: 6), low temperature of hot metal (1320 ℃ ~ 1350 ℃), poor quality of castings and high cost of products. On the basis of advanced experience of learning units, combined with the actual practice of our factory according to local conditions, we started to carry out the reform of the cupola. After many times of practice, understanding, practice and re-understanding, we finally succeeded in making a simple structure, Convenient operation, low coke consumption and low cost multi-row small tuyere furnace heat weathered iron furnace.