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正火处理的基本操作和完全退火大体相同(如升温速度,保温温度,保温时间等).正火处理在本厂的具体情况下,对提高铸件的机械性能(如抗拉强度、屈伏强度、冲击韧性)有显著作用,特别是屈伏强度和冲击韧性.同时对提高热处理炉的运用率,降低燃料的消耗.也有很大功效.为此,将退火处理改为正火处理的铸件进行正火,是有一定意义的.
Normalizing the basic operation and complete annealing substantially the same (such as heating rate, holding temperature, holding time, etc.) Normalizing In the specific circumstances of our factory, to improve the mechanical properties of castings (such as tensile strength, yield strength, Impact toughness) have a significant role, especially the yield strength and impact toughness.At the same time to improve the utilization rate of the heat treatment furnace, reducing fuel consumption.Also great effect.To this end, the annealing treatment is normalized castings for normalizing It is of some significance.