A method for treating iron scale on the surface of hot-rolled castings

Abstract

The invention relates to a hot-rolled casting surface oxide scale treatment method. The method uses surface cleaning equipment. The surface cleaning equipment comprises a bottom plate, a workbench, amounting rack and a cleaning mechanism; the specific method flow for cleaning the oxide scale on the hot-rolled casting surface by adopting the surface cleaning equipment comprises the following stepsof equipment regulation, material loading, preliminary cleaning, secondary cleaning and blanking; the cleaning mechanism comprises a limiting seat, a connector, a lifting cylinder, a cleaning branchchain, and an adjusting branch chain; the cleaning branch chain comprises a cleaning plate, a cleaning block, a butt-joint pole, a movable plate, a butt-joint cylinder, a rotating cam, a connecting sliding block and a rotating motor. By adopting a multi-statin design mode, a plurality of casting surface can be cleaned at the same time, the polishing degree can be adjusted as actual working requirement during the cleaning process, thereby improving the cleaning effect, and reducing the residue of the oxide scale on the recasting surface.

Description

technical field [0001] The invention relates to the field of foundry industry, in particular to a method for treating iron scale on the surface of hot-rolled castings. Background technique [0002] Hot rolling is relative to cold rolling, cold rolling is rolling below the recrystallization temperature, and hot rolling is rolling above the recrystallization temperature. The metal has high plasticity and low deformation resistance during hot rolling, which greatly reduces the energy consumption of metal deformation. Hot rolling can improve the processing performance of metals and alloys, transform the as-cast structure into deformed structure, and improve the processing performance of alloys. [0003] During the heating process, the metal surface is prone to react with air to form a layer of oxide scale. If the oxide scale is not removed in time, it will leave dents on the surface of the casting, which not only affects the appearance quality of the casting, but also reduces t...

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Problems solved by technology

[0004] (1) The initial investment cost of manual cleaning method is low, but the long-term labor cost is still a big burden for the manufacturer. In addition, the manual work efficiency is low, and the cleaning work of each casting needs to be completed by at least one worker, which is difficult to meet Mass production needs;

[0005] (2) When using automated equipment for cleaning, in order to ensure the cleaning effect and adjust the cleaning intensity, it is necessary to purchase water circulation systems, high-pressure water pumps, transmissions and other devices. The initial investment cost is high, and all devices need to be maintained regularly, which further increases the input cost

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