Seven reasons for broken piston rings
Release date:
2020-11-02
1. Overload fracture. After the new piston ring is installed in the cylinder, it will run without running-in, overloaded, trapped in the impact load, and the piston ring will be impacted and expanded, resulting in breakage.
1. Overload fracture. After the new piston ring is installed in the cylinder, it will run without running-in, overloaded, trapped in the impact load, and the piston ring will be impacted and expanded, resulting in breakage.
2. Impact fracture. Due to the wear of the top of the cylinder to form a step, the piston ring is broken under the impact of the step.
3. The piston ring gap is too small to break. After being heated and expanded, the top of the opening is dead, and the opposite side of the opening is broken.
4. The carbon deposit in the ring groove causes the piston ring to break. Due to the hardening of the carbon deposits in the ring groove, the piston ring is broken due to the alternating bending force in the axial direction.
5. The wear of the ring groove exceeds the limit, which causes the piston ring to twist, deform and break in the ring groove. The piston ring is subjected to additional torsion during operation, and the bending stress can also cause the fracture of the piston ring.
6. There is a quality problem and it is broken. The piston ring material is poor, there is an air gap during the casting process, and the presence of sand holes can also cause the piston ring to break.
7. The damaged piston ring of the locating pin is broken. For piston rings equipped with locating pins (two-stroke diesel engine), if the locating pin at the opening of the piston ring is damaged, and the opening of the piston ring is hung on the intake and exhaust ports, the cylinder will be pulled or the piston ring will be broken.
WeChat Official Account
Henan Zhongyuan Piston Co., Ltd.
Phone:+86-0391-8161717
Fax:+86-0391-8162166
Email:zhongyuan@zypiston.com
Website:http://www.zypiston.com
Address: No. 288, Wutong South Road, Mengzhou City, Henan Province, China