Oxygen-free copper material graphite protective sleeve

The utility model relates to the technical field of oxygen-free copper material protection devices, in particular to an oxygen-free copper material graphite protection sleeve which comprises a graphite pipe, a heat uniformizing pipe is arranged in the graphite pipe, the lower end face of the heat uniformizing pipe is fixedly connected with a connecting cover, copper materials are arranged in the heat uniformizing pipe, and an annular connecting seat is arranged on the edge of the upper end face of the connecting cover. The connecting cover is provided with a through hole, and the lower end of the copper material passes through the through hole of the connecting cover. The lower end of the copper material is arranged in the through hole of the connecting cover, and the inner wall of the through hole is of an arc-shaped structure, so that the connecting cover body is in line contact with the copper material, the heating area is reduced, and the production quality of the copper material is improved. 本实用新型涉及无氧铜材保