保定巨盛模具制造有限公司

盖板模具的工艺离不开热处置,对于热处置冷却的工序也就非常之重要了,一般退火的冷却速度最慢,正火的冷却速度较快,淬火的冷却速度更快。但还因钢种不同而有不同的要求,例如空硬钢就可以用正火一样的冷却速度进行淬硬。加热温度是热处理工艺的重要工艺参数之一,选择和控制加热温度,保证热处理质量的主要问题。
The process of cover plate mold is inseparable from heat treatment, which is very important for the cooling process of heat treatment. Generally, the cooling speed of annealing is the slowest, the cooling speed of normalizing is faster, and the cooling speed of quenching is faster. However, there are different requirements due to different steel grades. For example, air hardened steel can be hardened at the same cooling rate as normalizing. Heating temperature is one of the important process parameters of heat treatment process. It is the main problem to select and control the heating temperature to ensure the quality of heat treatment.
保证热处理质量的主要问题。加热温度随被处理的金属资料和热处理的目的不同而异,但一般都是加热到相变温度以上,以获得高温组织。转变需要一定的时间,因此当金属工件表面达到要求的加热温度时,还须在此温度坚持一定时间,使内外温度一致,使显微组织转变完全,这段时间称为保温时间。它采用高能密度加热和外表热处理时,加热速度极快,一般就没有保温时间,而化学热处理的保温时间往往较长。
The main problems to ensure the quality of heat treatment. The heating temperature varies with the metal data and the purpose of heat treatment, but it is usually heated above the phase transition temperature to obtain high-temperature structure. The transformation needs a certain time, so when the surface of metal workpiece reaches the required heating temperature, it is necessary to adhere to this temperature for a certain time to make the internal and external temperatures consistent, so that the microstructure transformation is complete. This period of time is called holding time. When high-energy density heating and surface heat treatment are used, the heating speed is very fast, and generally there is no holding time, while the holding time of chemical heat treatment is often longer.