Processing method for rolling casting device

Abstract

The invention relates to the field of sand casting, particularly to a processing method for a rolling casting device. The processing method comprises the following steps: a casting box is manufactured through moulding, the casting box is fixed on a rolling box in the rolling casting device, positioned by utilizing a chuck plate, and integrally fixed by utilizing a pressing plate, and the casting operation is automatically completed sequentially through pouring, liquid steel solidifying, demoulding and clearing processes. According to the invention, rapid rotation of the rolling box is utilized, so that the punching speed of the liquid steel is increased, the casting defects are reduced, and the quality of casting is improved, and compared with the traditional technology, the number of sand box dies is greatly reduced, the casting period is shortened, the casting cost is decreased, and the batch of casting is realized.

Description

technical field [0001] The invention relates to the field of sand casting, in particular to a processing method of a tumbling casting device. Background technique [0002] Casting technology, which includes molding, core making, pouring, shakeout, cleaning and post-processing, etc., is the core of foundry production and the key to the production of high-quality castings. The improvement and development of process level is regarded as promoting the progress of industry technology and an integral part of meeting the needs of economic and social development. Whether the choice of pouring process is reasonable or not, and the quality of the pouring work organization directly affect the quality of castings. For static casting, especially for small pieces and large batches of castings (weight less than 60kg, outer diameter Φ65 ~ Φ105mm), such as Y-shaped pipes, 90° elbows with lifting lugs, etc. 180° elbows, twisted pieces, etc. are widely used in important occasions in many ind...

AI Technical Summary

Problems solved by technology

At present, most of the domestic traditional crafts adopt the method of sand casting. Due to the uneven flow rate of molten steel during pouring in traditional crafts, the feeding rate of molten steel is poor, and it is easy to cause temperature differences in various parts of the casting. When the molten steel solidifies, the casting is prone to shrinkage. Porosity, shrinkage cavity and other casting defects, in order to control the decline in casting quality caused by the unbalanced flow rate of molten steel during pouring, formulate a correct casting process, control the solidification direction and process of castings, reduce casting defects, thereby reducing manufacturing costs, Improve production efficiency. Therefore, it is particularly important to invent casting devices and adopt corresponding casting methods for small batch castings.

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