济南锻件厂采用非常规的热处理工艺，克服了锻件内外组织转变不同时性，减少了热应力和组织应力，因此效果比较明显，锻件在热处理过程中，下列方法发挥了重要作用，同时也节约了大量的能源，值得提倡和推广。

　　Ji'nan forging factory using non conventional heat treatment process, to overcome the change inside and outside the organization and reduce the forging, heat stress and stress, so the effect is more obvious, forged in the heat treatment process, the following methods play an important role, but also saves a lot of energy, worthy of promotion and promotion.

　　1、表面淬火(感应加热、火焰加热、电解加热淬火等)。例如螺杆、丝杠、主轴等细长形零件采用表面淬火后既可保证表面有足够的硬度、高的耐磨性和疲劳强度，同时内部具有良好的强度和韧性，零件的整体变形小。

　　1, surface quenching (induction heating, flame heating, electrolytic heating, quenching, etc.). For example, screw, screw spindle slender parts by surface after quenching can ensure the surface wear resistance and fatigue strength, sufficient hardness high, while the interior has good strength and toughness, the whole deformation of small parts.

　　2、锻件形变热处理。

　　2 、 deformation heat treatment of forgings.

　　3、可控气氛和真空热处理。

　　3 、 controlled atmosphere and vacuum heat treatment.

　　4、锻件厂化学热处理。对锻件进行渗氮、软氮化等，则内外组织中的化学成分存在差异，同时其温度在相变点以下，因此避免了整体淬火后变形明显增加的可能，适用于变形要求严格的锻件。

　　4 、 chemical heat treatment of forgings factory. Carry on the forging of nitriding, soft nitriding, there are differences in the chemical composition of inside and outside the organization, at the same time, the temperature at the phase transition point, thus avoiding the overall deformation increased significantly after quenching may apply to the strict requirements of the forging deformation.

　　5、超声波淬火。利用超声波能量使淬火介质产生振动，可消除淬火锻件表面的蒸汽膜，使冷却速度提高，使淬火过程剧烈程度增加，冷却更加均匀，可避免锻件表面产生软点、软带，内应力和变形则明显减小。

　　5 . The use of ultrasonic energy to the quenching medium vibration, can eliminate vapor quenching forging surface, the cooling speed increased, the quenching process intensity increases, more uniform cooling, can avoid forging surface soft, soft belt, internal stress and deformation is obviously reduced.

　　6、快速加热。是指采用提高加热的温度，使锻件的表面迅速达到淬火温度，随后完成淬火的热处理工艺，例如齿轮在盐浴炉中转动加热齿部或进行高频加热等，由于加热时间短，表面的奥氏体晶粒没有长大，淬火后表面的热量无法传递到内部，因此仅仅是表面发生了组织的转变，变形明显减小。

　　6, rapid heating. Refers to the increase of heating temperature, the surface temperature of the forgings quickly reached the heat treatment process of quenching and then completed, such as a gear in a salt bath heating tooth or rotating high frequency heating, the heating time is short, the austenite grain surface did not grow up, after quenching surface heat can not be transferred to the interior, so just happened to the structure change of surface deformation is obviously reduced.