Chinese firm advances e-beam pre-curing for all-steel tires

Hubei, China - Wuhan Eray Electronic, the first Chinese company to have developed electron beam pre-curing technology, has used the technology in the production of all-steel radial tires at Double Coin's facilities in Shanghai. The tires passed inspection by experts in March.

Eray's technology had been used in making semi-steel radial tires by Sailun Jinyu Group in 2013, and the project with all-steel tires started in 2014.

According to Eray, electron beam pre-curing can activate macromolecules in the feedstock and generate free radicals, crosslinking carbon-carbon bonds and forming a three-dimensional structure.

The technology is said to significantly enhance tire physical mechanical performance. In one tire model, the qualification rate in terms of uniformity is raised by 33 percent, and indoor durability test achieved a 19 percent improvement, said the company.

Several large Chinese tire makers present at the inspection including South China Tire & Rubber have shown interest in the technology.