Surface flame demolding device of Hazelett casting machine

Abstract

The invention discloses a surface flame demolding device of a Hazelett casting machine. The surface flame demolding device comprises two headless steel belts which are arranged on an upper frame and a lower frame and run in parallel, a casting cavity is formed between the two headless steel belts, the surface flame demolding device further comprises two gas conveying pipes, the two gas conveying pipes are horizontally arranged at the upper part and the lower part of the outlet end of the casting cavity, the two gas conveying pipes are fixedly connected with the upper frame and the lower frame respectively, and a plurality of burners are evenly arranged on the gas conveying pipes and face the steel belts. By arranging the gas conveying pipes and the burners, liquefied gas is insufficiently combusted, generated carbon black is evenly coated on the surfaces of the steel belts and adheres to the surfaces of the steel belts, molten aluminum passes through the casting cavity and then is cooled through water to become solid, diaphragm objects exist between the steel belts and aluminum plates, transmission is conducted through a transmission device, the aluminum plates and the steel belts are conveniently separated, adhesion to the steel belts is avoided, the service life of the steel belts is prolonged, and meanwhile, the surface quality of the steel belts is guaranteed.

Description

Technical field: [0001] The invention relates to a demoulding device, in particular to a surface flame demoulding device of a Hazlet casting machine. Background technique: [0002] The Hazlett double-belt casting machine is mainly composed of a metal melt supply device, a casting nozzle, two parallel running headless steel belts (upper belt and lower belt), two side chain blocks, upper and lower frames, and steel belt support. Roller, cooling system, exit pinch roller and transmission control system etc. The two headless steel belts are respectively tensioned on the tension rollers of the upper and lower frames, and the downstream tension rollers play a driving and guiding role. The upper frame can be lifted by hydraulic lifting device, which is convenient for steel belt replacement and equipment maintenance. Two parallel steel belts and side chain blocks form a continuous casting cavity. [0003] During the molten aluminum casting process, the endless steel belt of the H...

AI Technical Summary

Problems solved by technology

The traditional treatment method is: during the processing of the steel strip, the surface of the steel strip is sandblasted with sandblasting of different materials and different particle sizes, generally spraying graphite powder coating. After use, the graphite powder coating will be partially consumed, resulting in unqualified local surface quality of the aluminum plate; the other is electrostatic spraying, using two delivery pumps to send the silica powder in the powder tank to the spraying device, and the powder from the After being sprayed out of the spraying device, the powder is all positively charged at the outlet with a high voltage of 12000V, and is adsorbed onto the steel belt. The excess powder is brushed off by the dust removal brush, and the dust is collected in the dust collector and discharged uniformly.

The existing problems are: 1. Sudden failure occurs during the production process, which cannot be processed, affecting the quality of the strip, and causing shutdown in serious cases, and there are hidden dangers in production and equipment safety; 2. The maintenance cost of the entire system is quite large, and the spare parts procurement cycle Long; 3. The uniformity of spraying changes closely with temperature, and changes in ambient temperature will lead to changes in spraying effects. It is difficult to grasp the actual situation in production, and it is also difficult to control the surrounding environment temperature; 4. Occurrences in production The local powder amount is uneven, and it is compensated by manual powder rubbing, the control accuracy is poor, the labor load is increased, the control accuracy is poor, and it is easy to produce waste products

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