我厂的木凿制坯生产流水线,对木凿毛坯整体成形采用了楔横轧新工艺,材料选用φ14×130mm～φ20×250mm 的圆钢,加热要求①始轧温度为1100℃(±50℃);②每 min 匀速供料12根;③加热后的棒料温度均匀,无变形,表面氧化皮极薄等。如果采用传统的燃煤反射炉加热,加热温度不好控制,难以保证棒料不变形,且加热速度无法与楔横轧机同步。另外,燃煤炉污染严重,能耗高,操作工人劳动强度大。为了适应楔横轧新工艺的需要,我厂研制了“自动控温棒料连续加热系统”。本系统由送料机构、炉体和控温装置三大部分组成。送料机构将装入料斗的棒料以每5s一根的速度自动送入炉膛。炉温由控温装置按温度设定值 I wood chisel billet production line, the overall shape of the chisel roughing using a cross wedge rolling process, the material used φ14 × 130mm ~ φ20 × 250mm round bar, heating requirements ① initial rolling temperature of 1100 ℃ (± 50 ℃ ); ② uniform feeding per min 12; ③ heating the bar temperature uniform, no deformation, the surface oxide thin and so on. If the traditional coal-fired heating furnace heating, heating temperature is not good control, it is difficult to ensure that the bar is not deformed, and the heating speed can not be synchronized with the wedge cross-rolling mill. In addition, coal-fired furnace pollution is serious, high energy consumption, labor-intensive operation of workers. In order to meet the cross wedge rolling process needs, I plant developed a “automatic temperature bar material continuous heating system.” The system consists of feeding mechanism, furnace and temperature control device composed of three parts. Feeding mechanism will be loaded into the hopper bar at a speed of 5s automatically sent to the furnace. Temperature by the temperature control device temperature set point