The trolley type vacuum bright annealing furnace is mainly used for non oxidation bright heat treatment of copper tube, steel tube and other alloy tubes or bars.

The trolley type vacuum bright annealing furnace includes heating furnace body, furnace liner, charging basket, push-pull mechanism and temperature control system. The steel structure of furnace shell is welded by various section steels and steel plates. The furnace lining is built with ultra light 0.6g/cm3 energy-saving fire-resistant insulation bricks or high temperature resistant fiber modules. The trolley is equipped with pressure-resistant and anti-collision heavy refractory bricks. The furnace door and furnace liner are in an integrated structure, and the furnace temperature is reduced The pressing device of this structure makes no friction between the fiber plane on the furnace door and the furnace mouth cotton, and the travel is controlled by the limiting device, which has the characteristics of good safety performance and long service life.

The heating elements of the trolley type vacuum bright annealing furnace are made of high-quality and high resistance nickel chromium alloy Cr20Ni80, which are processed into waves. According to the law of air thermal field, they are installed on the left and right sides of the furnace body and on the trolley in proportion, and the temperature is controlled in front, middle and back zones.