What are the causes of piston ring breakage?

[MacMaria]

Piston ring breakage is caused by: 1. Excessive clearance between piston ring gaps; 2. Increased carbon deposits in the piston ring grooves; 3. Excessive wear of the piston ring grooves; 4. Severe wear of the piston ring cylinder liner; 5. Material defects; 6. Poor manufacturing quality. Piston rings are metal rings embedded in the piston grooves, which are divided into: compression rings and oil rings. The functions of piston rings: 1. Sealing: Piston rings maintain the seal between the piston and the cylinder wall, controlling gas leakage to a minimum; 2. Heat conduction: They can transfer and disperse the high heat generated by combustion to the cylinder wall, cooling the piston; 3. Oil control: They can scrape off the lubricating oil adhering to the cylinder wall and maintain normal oil consumption; 4. Support: Piston rings move up and down in the cylinder, preventing direct contact between the piston and the cylinder, providing support.