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钢丝拉拔之前需对盘条进行加热处理,其目的在于消除内应力以便于拉拔,并且达到合乎工艺要求的金相组织.目前我国线材行业广为使用的加热炉是马弗炉,少数厂家使用明火加热炉.就两种炉型而言,可作以下比较.马弗炉基本结构是炉内砌有相互连接的马弗砖,使马弗孔从炉头亘通炉尾,钢丝从卸件架上卸开后,呈展开状态在马弗孔内行走与火焰隔绝而被间接加热.炉内要求加热均匀,温度波动和炉宽方向的温差都会影响钢
Wire drawing before the need for wire rod heat treatment, which aims to eliminate the internal stress in order to facilitate drawing, and meet the metallographic requirements of the process.Nowadays, China’s wire industry is widely used furnace muffle furnace, a small number of manufacturers The use of open flame furnace. In terms of both types of furnaces, the following comparison can be made. The basic structure of the muffle furnace is built with muffle brick connected to the furnace, the muff hole from the stove through the furnace tail, wire unloading After the unloading on the rack, the unfolded state is heated in the muffle hole and is indirectly heated by the flame, and the furnace requires uniform heating, and the temperature difference between the temperature fluctuation and the furnace width will affect the steel