Spiral-Groove gas seals work by maintaining a narrow clearance between the rotating and stationary rings. The finited element method is used to solve Renolds equation of the gas.
The vent system composed of vent groove, vent plug and clearance of ejector pin can fit the need of venting.
采用分型面排气槽、顶杆间隙排气与排气塞排气相结合的排气系统设计能够很好地满足模具排气需要。
3
There are flow separations at the front blade of bulge tip clearance. The high speed area of groove tip clearance increases the secondary flow loss dramatically.