Vulcanising device of a vehicle tyre

A vulcanizing device of a vehicle tire comprising:

• a lower plate;
• segment shoes fitted onto the lower plate;
• profile segments arrangeable on the segment shoes in order to form a tread pattern on the-tire blank to be vulcanized;
• a closure ring for moving the segment shoes in the radial direction of the closure ring, the closure ring being fitted around the segment shoes against back surfaces of the segment shoes,
• wherein the closure ring comprises wear plates, the wear plates being coated with a ceramic coating layer and being arranged on an inner surface of the closure ring so that the ceramic coating layers are fitted against the back surfaces of the segment shoes, and/or wherein the lower plate comprises wear plates, the wear plates being coated with a ceramic coating layer and being arranged on a surface of the lower plate so that the ceramic coating layers are fitted against lower surfaces of the segment shoes.