YOUNG STAR MOTOR CO.,LTD.
YOUNG STAR MOTOR CO.,LTD. Provides quality products and the service, let the customer be satisfied
Add to Cart
| O.E. NUMBER | IN/EX | DIMENSION |
| D×d×L(mm) | ||
| MD127847 | IN | 34.0×6.6×109.7 |
| MD127840 | ||
| 22211-33000 | ||
| 22211-33010 | ||
| MD127841 | EX | 30.5×6.6×109.8 |
| MD184078 | ||
| MD130164 | ||
| 22212-33000 | ||
| 22212-33010 | ||
| MD127848 |
Material of Engine Valves
Normal material: INLET VALVE IS SUH1(40Cr) ; EXHAUST VALVE IS SUH3(4Cr9Si2).
Good material: INLET VALVE IS SUH3(4Cr9Si2) ; EXHAUST VALVE IS SUH35(21-4N)
Technology
1.Forging blank
2.800 ~1200Centigrade high temperature treatment
3.The inlet end of high-frequency quenching hardness, improve the tail, tail HRC hardness up to 48 ° ~55°, reduce end fracture and shorten service life
4.Surface nitridation processing, processing depth 0.008mm, nitriding colored grey, rust and increase the
surface hardnes
