Injection speed indicating method for steel mold casting and injection speed indicating device for steel mold casting

Abstract

The invention provides a steel die casting speed indication method and device which are used for indicating the casting speed of liquid steel flowing out of a water port of a steel ladle during die casting. The steel die casting speed indication device comprises a casting vehicle, an electronic weighing device, a data processor and a display. The casting vehicle is used for carrying the steel ladle for casting. The electronic weighing device is arranged on the casting vehicle at the position where the casting vehicle bears the steel ladle and can timely weigh the weight of the steel ladle and measure change data of the gross weight of the steel ladle along with time during casting. The data processor calculates the casting speed according to the change data of the gross weight of the steel ladle along with time obtained by the electronic weighing device. The display displays the casting speed calculated by the data processor. The steel die casting speed indication device can accurately control the casting speed, replaces operations according to experiences, improves accuracy and stability of casting process control, and removes influence of manual factors.

Description

[0001] This application is a divisional application of the patent application with the application number 201110444498.7, the application date is December 26, 2011, and the invention title is steel mold casting injection speed indicating method and steel mold casting injection speed indicating device. technical field [0002] The invention relates to a steel pouring speed indicating method and a steel pouring speed indicating device, in particular to a steel mold casting pouring speed indicating method and a steel mold casting pouring speed indicating device used in the die casting production process in the field of metal casting. Background technique [0003] The pouring speed of molten steel is an important process parameter in the die casting production process, which directly affects the internal and external quality of the steel ingot. If the pouring speed is too fast, serious shrinkage cavities and segregation defects will occur inside the steel ingot, and the mold slag...

AI Technical Summary

Problems solved by technology

[0005] 1. This method of controlling injection speed mainly depends on experience and is greatly affected by human factors. After personnel changes, there must be a certain stage of exploration, and different people have different summed up experiences. Therefore, the accuracy and stability of this control method are compared. Difference

[0006] 2. The total casting time is recorded, and the average rate is obtained by calculation. Since the molten steel ladle and the ingot are of variable cross-section, it is impossible to record or calculate the instantaneous speed during the casting process, so the process injection speed required for process improvement cannot be provided.

[0007] 3. The operator must observe the steel flow with the naked eye to judge the injection speed during the pouring process, and the gap at the lower edge of the protective casting cover must be enlarged, which increases the risk of high-temperature molten steel inhalation and reduces the protective pouring effect, and The smoke generated by oxidation increases, which deteriorates the working environment

[0008] 4. The operator must climb to the top of the ingot mold to observe the rise of molten steel in the mold. However, there is no load-bearing cover plate on the top of the ingot mold, and the inside of the mold is made of steel with a temperature above 1450°C, so there is a great potential safety hazard.

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