金属在成型工序(模锻、精锻、滚锻)之前的加热是确定成品质量、劳动生产率的最重要的工艺程序。通道式炉的特点是机械化水平高,因而对成型时的加热推广的价值。在通道式炉中,根据最大限度利用燃料的要求,采用α=1～1.1来实现天然气的 Metal heating in the molding process (forging, precision forging, roll forging) is to determine the final product quality, labor productivity, the most important process procedures. Channel furnace is characterized by a high level of mechanization, and thus promote the value of heating molding. In the channel furnace, according to the maximum use of fuel requirements, the use of α = 1 ~ 1.1 to achieve natural gas