What are the causes of piston ring breakage?

[VanPiper]

The causes of piston ring breakage are: 1. The material of the piston ring does not meet the requirements, resulting in poor bending strength; 2. The surface treatment layer of the ring is too thick, leading to reduced fatigue resistance; 3. After the ring groove wears, it becomes flared, causing the piston ring to twist and break during operation; 4. The piston undergoes thermal deformation or cracking, causing the ring to be compressed and break. Piston rings are metal rings used to fit into the grooves of pistons. There are two types of piston rings: compression rings and oil rings. Compression rings are used to seal the combustible gas mixture in the combustion chamber, while oil rings are used to scrape off excess oil from the cylinder. Piston rings are widely used in various power machinery, such as steam engines, diesel engines, gasoline engines, compressors, hydraulic machines, etc.