Shaking vacuum sealing device of PEEK (Polyether-Ether-Ketone) sealing framework

Abstract

The invention belongs to the technical field of sealing equipment, and aims to provide a shaking vacuum sealing device of a PEEK (Polyether-Ether-Ketone) sealing framework. The problem of serious air leakage caused by poor vacuum sealing performance when a ball core is in a spherical rolling state in the prior art is solved. The shaking vacuum sealing device is characterized in that an upper framework, a middle framework and a lower framework are coaxially arranged from top to bottom; and the upper framework, the middle framework and the lower framework are adjacent to one another from top to bottom to form a sealed cavity, the sealed cavity is a spherical cavity matched with the shape of a ball core, the ball core is embedded in the sealed cavity, the upper end of the ball core is connected with a rocker, and the upper end of the rocker extends to the outer side of the sealed cavity. The air tightness in a vacuum furnace is effectively guaranteed, and the vacuumizing time is shortened; the use reliability can be effectively improved through the design of a plurality of sealing lip grooves; and the hardness of the material ensures the requirement of air tightness, and prevents the ball core from being scratched due to overhigh hardness and further prevents the air tightness from being influenced.

Description

technical field [0001] The invention belongs to the technical field of sealing equipment, and in particular relates to a shaking vacuum sealing device of a PEEK sealing frame. Background technique [0002] At present, most domestic enterprises adopt the electric arc furnace smelting method. The electric arc furnace (EAF for short) smelting method uses electric energy as the heat source. A steelmaking method in which the direct action of radiation and electric arc heats and melts metal charge and slag, and smelts various qualified steel and alloys. [0003] In the prior art, the sleeve rod and ball core of the electric arc furnace torch are at the ball hinge, and the sealing condition is not ideal. Under normal circumstances, the seal at the sleeve rod is more common and the easiest part to seal, but it ignores the vacuum seal when the ball core is in a spherical rolling state, which leads to serious air leakage problems and leads to high-temperature electric arc furnace pum...

AI Technical Summary

Problems solved by technology

[0005] In view of the poor vacuum sealing performance of the ball core in the spherical rolling state in the prior art, resulting in serious air leakage problems, the purpose of the present invention is to provide a shaking vacuum sealing device with a PEEK sealing skeleton

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