论文部分内容阅读
一、底炭的高度(在Copula operation一书上)之公式为H=10.5P+3或6+x,在熔裂低炭铸铁时应用3,普通铸铁则用6。但实际高度似仍宜根据焦炭性质加以调整,底炭高度在熔化过程中,并非保持不变,实际此高度经常在变化,在熔化过程中,如发现熔铁温度降低,可增加风量约十分之一,以视温度是否增高或减少,如增高则底炭太高,如降低则底炭太低。底炭可分二批加入,待第一批烧至通红后,用铁棒搅动一下,以免木柴等物挌住,然後加入第二批,
First, the bottom of the height of the carbon (in the Copula operation book) formula H = 10.5P +3 or 6 + x, the application of low carbon cast iron melt 3, ordinary cast iron 6. However, the actual height should still be adjusted according to the nature of the coke. At the end of the carbon height in the melting process, not the same. In practice, the height is often changing. During the melting process, if the temperature of the molten iron decreases, One, depending on whether the temperature increases or decreases, such as the increase in the end of the carbon is too high, such as reducing the bottom carbon is too low. The bottom of the charcoal can be divided into two batches to join, to be the first batch until the red after burning, stirring with iron rods to avoid firewood and other objects to live, and then add the second batch,