Carbon crucible vibration forming machine

Abstract

A carbon crucible vibration forming machine comprises a main rack, an amplitude-modulation vibration table, an upper pressurizing mechanism, a lower pressurizing mechanism, an upper pressing die, an inner die, a middle die and an annular die. The upper pressing die is assembled on the lower portion of the upper pressurizing mechanism. The lower pressurizing mechanism comprises a lower hydraulic cylinder, a pressurizing supporting seat, an inner die connecting seat and a plurality of annular die pressurizing seats. The pressurizing supporting seat is mounted on the vibration table face. One endof the inner die connecting seat is connected with the lower hydraulic cylinder, and the other end of the inner die connecting seat is connected with the inner die. The multiple annular die pressurizing seats are uniformly distributed at the bottom of the inner die in the circumferential direction and connected with steps at the bottom of the inner die through springs. The annular die is arrangedon the upper portions of the annular die pressurizing seats. The middle die is mounted on the pressurizing supporting seat. A die lifting mechanism is further arranged on the amplitude-modulation vibration table. According to the carbon crucible vibration forming machine, the mode that bottom vibration is matched with up-down extrusion is adopted, a crucible opening is downwards formed, all partsof a crucible are uniform in thickness, the forming effect is good, the efficiency is high, cracks are avoided, and the density is basically consistent in the up-down direction.

Description

technical field [0001] The invention belongs to the technical field of carbon crucible production, in particular to a carbon crucible vibration forming machine. Background technique [0002] At present, two methods are used for the production of carbon crucibles: ① use the roasted round electrode carbon block blank, and machine it into a crucible of the required size, and the crucible product is round. This kind of production method has a relatively high yield of finished products because the raw materials have been roasted, but the production efficiency is low. Most of the raw materials (round electrode carbon block blanks) are purchased from outside. ② Extruded by a large extruder. Specifically, the paste is added into the mold, and it is extruded downward by a pressure of more than a thousand tons (the crucible mouth is upwardly formed), and then roasted to obtain a rough crucible, and then processed and modified to make a finished product. is round. This production me...

AI Technical Summary

Problems solved by technology

However, the above two production methods, such as the production of square crucibles, all need to be machined into shape in the end. The processing technology is too complicated, and the production cost of square crucibles is too high. Comprehensive calculation, the production cost has not decreased significantly.

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