A method for adding mold slag for casting centrifugal rolls

Abstract

The invention discloses a method for adding casting powder for pouring a centrifugal roller, and belongs to the technical field of manufacturing of rollers. The method for adding the casting powder for pouring the centrifugal roller is to add solid casting powder into the centrifugal roller in the form of a liquid state, and comprises the following steps: putting the solid casting powder into a heating furnace and heating the solid casting powder to 1200 to 1400 DEG C, so that the solid casting powder is melted into liquid; and pouring the liquid casting powder into a cavity. The casting powder has proper viscosity and can flow into the inner surface of a centrifugal cast rapidly and uniformly. The slag discharging property of the casting powder is high, the impurities in the roller cast are greatly reduced and the quality of the roller cast is improved. The casting powder for pouring the centrifugal roller is added in the form of the liquid state, so the potential safety hazard caused by close-distance operation of personnel can be avoided; and furthermore, automatic equipment operation is realized, so the consistency of the operating process is guaranteed and influence of human factors on the product quality is avoided.

Description

technical field [0001] The invention discloses a method for adding mold slag for pouring centrifugal rolls, and belongs to the technical field of roll manufacturing. Background technique [0002] Mold slag needs to be added in the process of manufacturing centrifugal rolls. At present, the method of adding mold slag to centrifugal rolls is mainly by manually sprinkling solid particle mold slag at close range. From the perspective of centrifugal roll production methods, the time period of spraying mold slag is a relatively low safety risk factor. The large process operation steps pose a great safety hazard to the safety of operators, and it is difficult to achieve precise operation in the process of hand spreading, and it is difficult to ensure the uniformity of the mold powder. After the solid mold powder is sprinkled, it will cause the local temperature of the inner cavity to drop, and the entire temperature The field uniformity is poor, resulting in abnormal structure. If ...

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Problems solved by technology

[0002] Mold slag needs to be added in the process of manufacturing centrifugal rolls. At present, the method of adding mold slag to centrifugal rolls is mainly by manually sprinkling solid particle mold slag at close range. From the perspective of centrifugal roll production methods, the time period for spraying mold slag is a relatively low safety risk factor. The large process operation steps pose a great safety hazard to the safety of the operators, and it is difficult to achieve precise operation in the process of hand spreading, and it is difficult to ensure the uniformity of the mold powder. The uniformity of the field is poor, which leads to abnormal organization. If the anti-corrosion cannot be effectively performed during the core filling process, it will bring hidden dangers to the product quality. Therefore, it is necessary to improve the method of spreading mold slag to ensure the safety of operators and improve the quality of centrifugal roll products.

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