Product name:	ZX rotor shaft
Material:	20CrMoTi
Heat treatment requirements:
1. Forged and normalized spline ends, hardness HB170-210;
2. After the initial processing of the blank, the quenching and tempering treatment is 23-28HRC;
3. After quenching and tempering, the metallographic structure of the workpiece is inspected according to the third group of FB/T 13320-2007 rating chart, and the level is 1-3;
4. The surface is quenched and tempered at low temperature after carbonitriding, 58-63HRC; the depth of the quenched layer is 0.5-0.8mm, and the metallographic structure is inspected according to the JB/T9204-2008 rating chart, and the level is 3-7;
5. Core hardness HRC28-35, hydrogen removal and stress relief, the hydrogen content is less than 1.1e-0

ZX Rotor shaft