How should the hardensed layer depth of the induction quenching?
Source：本站 Time：2021/5/11 16:45:44 frequency：
The depth of the hardening layer is generally determined according to the working conditions of the quenching. In terms of induction quenching parts, we should pay more about how to choose the hardensed layer depth.
1. Parts working under friction conditions, generally hardening the depth of hardening 1.5 ~ 2.0 mm, after wear, the worn, the depth of the hardened layer can be large, and 3 to 5 mm.
2. The depth of the hardening layer of the part of the pressure loaded and pressure load should be 4 to 5 mm.
3. The cold rolling roll quenched hard layer should be greater than 10 mm.
4. Imported quenching parts, the stress is not too high, the effective hardened layer depth can be 15% of the diameter of the part; when high stress, its effective hardened layer should be greater than 20% of the diameter to improve parts. Fatigue strength.
5. The depth of the hardening layer at the shoulder or fillet should generally be greater than 1.5 mm.
6. The hardening layer must be continuous in the whole length, otherwise, the torsional strength of the shaft is lower than the intensity of the shaft intensity of the unusually quenched, due to the hard layer interruption of the step transition.
The inductive quenching parts depth should have, and the lower limit range. The general fluctuation range is 1 ~ 2mm. For example, the hardening layer depth is 0.5 to 1.0 mm, 1.0 ~ 2.0 ~ 2.0 ~ 4.0 mm, 3.0 ~ 5.0mm, ≥ 1.2mm, ≥ 2.0 mm, ≥ 3.0mm, etc.. Hardness should also be, lower, such as 56 ~ 64HRC, 52 ~ 57HRC, ≥ 50HRC, ≥45 HRC, etc.
1. Parts working under friction conditions, generally hardening the depth of hardening 1.5 ~ 2.0 mm, after wear, the worn, the depth of the hardened layer can be large, and 3 to 5 mm.
2. The depth of the hardening layer of the part of the pressure loaded and pressure load should be 4 to 5 mm.
3. The cold rolling roll quenched hard layer should be greater than 10 mm.
4. Imported quenching parts, the stress is not too high, the effective hardened layer depth can be 15% of the diameter of the part; when high stress, its effective hardened layer should be greater than 20% of the diameter to improve parts. Fatigue strength.
5. The depth of the hardening layer at the shoulder or fillet should generally be greater than 1.5 mm.
6. The hardening layer must be continuous in the whole length, otherwise, the torsional strength of the shaft is lower than the intensity of the shaft intensity of the unusually quenched, due to the hard layer interruption of the step transition.
The inductive quenching parts depth should have, and the lower limit range. The general fluctuation range is 1 ~ 2mm. For example, the hardening layer depth is 0.5 to 1.0 mm, 1.0 ~ 2.0 ~ 2.0 ~ 4.0 mm, 3.0 ~ 5.0mm, ≥ 1.2mm, ≥ 2.0 mm, ≥ 3.0mm, etc.. Hardness should also be, lower, such as 56 ~ 64HRC, 52 ~ 57HRC, ≥ 50HRC, ≥45 HRC, etc.
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