热风閥餅是高爐热风炉的一个零件,形状如餅(如图1)。它的成分要求:銅96％以上,錫2.5％以下,磷小于0.05％,鑄出后要經受7公斤/公分~2的水压試驗,造型时零件上下平面都不許留出泥心头(加工后用粉堵堵死)作为支撑泥 Hot air valve cake is a blast furnace stove parts, the shape of the cake (Figure 1). Its compositional requirements: more than 96% of copper, less than 2.5% of tin, less than 0.05% phosphorus, after casting to withstand 7 kg / cm ~ 2 hydrostatic pressure test, the shape of the upper and lower parts of the plane are allowed to leave the mud heart (after processing Blocked with powder blocking) as support mud