Piston Rings Made by China has Caught Up with the World Top’s Technology

As one of key component of the engine, the piston ring work in a high-speed, high-temperature and high-pressure environment, which can easily cause piston ring to crack, resulting the air leakage, loose of power, increase of fuel consumption, and some case as engine lockup, causing embarrassment of vehicle breakdown.

Turn out, it’s obviously the quality of the piston rings affects directly the car owner's wallet and the driving experience.

The materials widely used to make piston ring like: cast iron, alloy, and steel.

In terms of coatings, there are such as Phosphating, Nitriding, chromium plating, PVD, DTC, etc.

These materials have their own advantages and peculiarity, witch influences the cost and performance of the product.

In the past, one of the main reasons for the low quality of china made engines, was the piston rings.

In order to improve the quality of engines, many engine manufacturers apply piston rings imported from Japan.

However, in recent years, China made piston rings have also caught up with the world top’s technology.

For example, the DLC (Diamond Like Carbon) piston ring, produced by Fujian Dongya Machinery, was jointly developed with Japan, Singapore, and Tsinghua University, which has wear resistance 6 times than traditional piston rings, and the service life even exceeds the life of some vehicles.

It is estimated 47.2% of China’s domestic vehicles use Dong Ya technology piston rings, and the products have been sold to more than 30 countries, including the United States, Japan, Italy, India, Pakistan, Vietnam, South America, Brazil, Africa, and so on.

China’s piston rings quality has continuously improving by follow reasons:

Improvement of technology: With the improvement of technology and the manufacturing processes, manufactures has continuously introducing innovated equipment in the research and production process, improving the quality and stability of products.

Optimization of material: Focus on material research and application, using high-quality alloy materials to meet requirements through strict inspection.

Ensuring materials have better wear and corrosion resistance, thereby improving the service life and reliability of piston rings.

Innovated manufacturing process: Innovation of manufacturing process and comprehensive management about raw material, forming, processing, surface treatment, and so on.

By optimizing the process flow and implementation of standards, the defect rate of has effectively reduced, so the improvement of quality.

Brand value and market competitiveness: Some manufacture has actively attaching importance to value of brand, improving product quality and after-sales service.

By increase of marketing and promotion to establish reputation, improving the market competitiveness.

In summary, the continuous improvement of china made piston rings, is the result of multiple factors, which including the improvement of technology, optimization of material, innovated manufacturing process, and brand value.

These factors have significantly improved the performance, lifespan, and reliability of products.