Anodic carbon block vibrating and shaping method for aluminium

Abstract

This invention relates to anode carbon blocks formed by vibration. Firstly, the heavy punch (4) and the heavy punch mantle (5) were lifted and the paste filler (7) was filled in the mould (6). Secondly, the two-bearing vibration table (8) was lifted to fall down the heavy punch and the heavy punch mantle to guarantee the he heavy punch mantle locked the mould closely. The heavy punch was stopped before it pressed the paste filler. When the vibration time was set, the heavy punch was fallen down rapidly to press the paste filler. When it was close to on / off (11), the heavy punch was forced. The system was vibrated until the set time to stop vibration was over. Then, it was demoulded and the carbon block discharged. The system began vibration before the heavy punch pressed the paste filler to provide the chance that the surface of the paste filler was flat automatically .During the vibration, the paste filler was from natural accumulation to vibration accumulation to discharge the gas in the filler and to improve the air discharge efficiency and shorten its time by the vacuum-pumping system.

Description

Technical field [0001] The invention belongs to the carbon technology of the aluminum industry, and mainly relates to a vibration forming method of an anode carbon block for aluminum. Background technique [0002] At present, the domestic production of anode carbon blocks adopts vibration forming, and the production method of large carbon blocks is as follows figure 1 As shown, the production process is as follows: the heavy hammer 4 and the heavy hammer cover 5 lock the mold 6 at the lifting position, put the paste 7 that meets the requirements into the mold 6, put down the heavy hammer 4 and the heavy hammer cover 5, and the heavy hammer 4 Press on the material (with pressurization), lock the weight cover 5 (the weight without the weight cover can be placed directly), vacuumize and start the biaxial vibration table 8 at the same time. After the vibration reaches the set time, the vibration stops, and the following is the reverse process, and the carbon block is demoulded....

AI Technical Summary

Problems solved by technology

The disadvantages of this vibration process are: 1. The material put into the mold may not be flat, and the heavy hammer is directly pressed on it. The volume density of the formed carbon block is uneven, so that the carbon block cannot be pressed to the minimum thickness. The same material weight, vibration molding The height of the rear carbon block is different

2. Not conducive to vacuuming

The space around the upper part of the material pressed by the weight is small, so that the gas (air and asphalt fume) that sneaks into the lower layer inside the paste is not easy to discharge, and the space occupied by the gas directly affects the volume density. At the same time, after the carbon block is demoulded, the gas under pressure The pressure difference between the inside and outside of the carbon block is large, and the carbon block is easy to crack

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