炉爪是轧钢厂链式加热炉的主要备件之一。鞍钢两家薄板厂有十余座链式加热炉,每年消耗炉爪6000多个,重量27000kg。全国几十家薄板厂,其链式炉也采用这样的炉爪,耗量相当大,但由于各厂家使用的炉爪材质和制造工艺不同,使用寿命相差悬殊。据了解,太钢、上钢三厂及沈阳薄板厂等使用的炉爪,寿命仅有一个月左右,而鞍钢生产的ZGCrMn炉爪使用寿命最低达三个月,这主要是因为采用了特种铸造方法真空负压实型铸造。由于生产工艺先进,产品质量 Stove claw is one of the main spare parts for the rolling mill chain furnace. Anshan Iron and Steel Company two sheet mills have more than 10 chain heating furnace, consumption each year more than 6,000 stoves, weighing 27,000 kg. Dozens of nationwide thin-plate mill, the chain furnace also uses such a furnace claw, consumption is quite large, but because of the manufacturers use the furnace claw material and manufacturing process is different, the service life is quite different. It is understood that TISCO, the third plant and Shenyang sheet metal mill and other use of the furnace claw, life expectancy is only about a month, and Anshan Iron and Steel production of ZGCrMn claw life as low as three months, mainly because of the use of special casting Method Vacuum negative pressure casting. Due to advanced production technology, product quality