1. Quenching When quenching and heating in a salt bath furnace, the springs should be evenly bundled with iron wires, or the springs should be heated on the mandrel. When heating, ensure that the surface of the spring is oxidized and decarburized. Salt baths should be carefully deoxygenated. It can also be heated in a box-type furnace with a controlled atmosphere. The heating temperature is 850 degree C ± 10 degree C, and the temperature is kept for 1015 minutes, and the quenching oil is cooled through the furnace.
2. Mae angen ffrwydro ergyd i wella cryfder blinder y gwanwyn. Diamedr y taflunydd yw 0.30.5mm. Wrth ddefnyddio chwistrelliad aer cywasgedig, y pwysedd aer cywasgedig yw 0.40.5MPa; gyda allgyrchydd ffrwydro saethu, cyflymder llinellol y taflunydd yw 70m/s. Gall bywyd gwasanaeth y gwanwyn cywasgu sy'n cael ei drin gan ffrwydro ergyd fod yn fwy na dyblu.
3. ar ôl y recrystallization anelio gwanwyn cywasgu yn cael ei rolio a ffurfio, rhaid ei recrystallized a annealed i sefydlogi dimensiynau geometrig y gwanwyn a lleihau'r anffurfiannau yn ystod quenching. Y tymheredd anelio ailgrisialu yw 550650 gradd, a chedwir y tymheredd am 11.5 awr ac yna caiff yr aer ei oeri. Gellir cynnal swm bach mewn ffwrnais baddon halen, a gellir defnyddio ffwrnais ymwrthedd parhaus i reoli'r atmosffer mewn symiau mawr.
4. Tempering can be carried out twice after tempering and quenching. Correction and tempering should be carried out first. The temperature of correction and tempering should generally be lower than the final tempering temperature by about 20 degree , and the temperature should be kept for 10-15 minutes. The final tempering is then carried out, and after the spring size is corrected, the spring is mounted on the tempering jig for final tempering. The tempering fixture should ensure that the pitch and free length of the spring meet the requirements. The tempering temperature is 420 degree ±10 degree , the temperature is kept for 3035min, and the furnace is water-cooled.
