Bimetal composite rim tread wheel

The utility model provides a double-metal composite rim tread wheel. The double-metal composite rim tread wheel comprises a tread rim body and a rim rim body, the tread rim body and the rim rim body are welded to form the double-metal composite rim tread wheel, the rim rim body is made of a metal material which is resistant to abrasion and low in friction coefficient and has the self-lubricating performance, and a lubricating film is formed on the surface of a rim. And the lubricating film is transferred to the side surface of the steel rail, so that direct contact between metals is blocked. According to the double-metal composite rim tread wheel, the sufficient adhesion coefficient between the wheel tread and the top face of the steel rail can be achieved, the requirements for traction and braking of the wheel are met, the friction coefficient between the rim of the wheel and the side face of the steel rail is small, abrasion of the rim and the side face of the steel rail is reduced, and the derailment proba