Pig iron spectral analysis sample centrifugal casting device

Abstract

The invention discloses a pig iron spectral analysis sample centrifugal casting device which is characterized by being formed by a barrel and a pouring port. The barrel is transversely arranged, the lower end of the pouring port extends into an opening of the barrel, iron liquid sample pouring cavities with different specifications are arranged on the peripheral wall in the middle of the barrel, a cooling liquid spraying pipe is arranged on the outer side of the barrel, the barrel is fixed on a machine frame through a sliding sleeve, and a gear is arranged at the end of the barrel and is meshed with a driving gear of a motor. When the motor starts, the motor can drive the barrel to rotate, the cooling liquid spraying pipe is opened, simultaneously sampled iron liquid is poured into the barrel through the pouring port, the sampled iron liquid is poured into the iron liquid sample pouring cavities under the effect of centrifugal force, and therefore centrifugal sample casting and spraying for cooling are performed simultaneously. The pig iron spectral analysis sample centrifugal casting device can perform fast cooling during sample casting, improve the cooling speed, ensure the quality of white structures and produce multiple white structures in one time so as to meet requirements of cast products.

Description

technical field [0001] The invention relates to a device for centrifugally casting pig iron spectroscopic analysis samples. Background technique [0002] The stability of the chemical composition of the molten iron is an important indicator of the quality of the molten iron. Different chemical compositions have different casting uses. Therefore, an iron sample must be prepared first and the chemical composition of pig iron must be analyzed. At present, there are mainly three kinds of rapid detection methods and sampling tools for molten iron: one is to use a sampling spoon to take the iron sample and pour it into the mold. For all elements, the advantage of this method is high detection accuracy, but it also has shortcomings. The obvious shortcomings are: the detection cycle is long, it is difficult to match the production rhythm, and it cannot be adapted to rapid detection and analysis. The second is to use a sampling spoon to take the iron sample and pour it into the mold...

AI Technical Summary

Problems solved by technology

At present, there are mainly three kinds of rapid detection methods and sampling tools for molten iron: one is to use a sampling spoon to take an iron sample and pour it into a mold. For all elements, this method has the advantage of high detection accuracy, but there are also shortcomings. The obvious shortcomings are: long detection cycle, difficult to match with production rhythm, and cannot be adapted to rapid detection and analysis

However, the disadvantage of this method is that it is difficult to accurately detect the content of C element. However, for the foundry industry, the C content is often very important. If the carbon and sulfur analyzer is used for analysis, only the content of C and S can be analyzed. Other components It cannot be detected with a carbon-sulfur analyzer. Obviously, the use of X-ray fluorescence and carbon-sulfur analyzers cannot achieve the purpose of comprehensive detection and analysis of the iron samples taken.

But adopt the method for spectral detection to also have weak point, main shortcoming is: the one, iron sample is cast in special mold after taking out with sampling spoon, carries out fixed natural cooling, forms white mouth structure, adopts pouring process, because The heat is concentrated at the position corresponding to the pouring on the cooling iron sample, and the center of the cast sample is affected by heat, and the white structure gradually decreases from the edge of the cast sample to the center of the sample, and the cooling capacity of the cooling mold is constant due to the influence of the material of the cooling mold Moreover, the cooling capacity will decrease with the increase of casting sample quantity, so the service life of the mold is also very limited; secondly, due to the use of a special molten iron sampler, in order to adapt to different components and it is difficult to whiten the molten iron, it is often necessary to specially design the molten iron The universality of the sampler and the molten iron sampler is difficult to guarantee. For the molten iron that is difficult to whiten, the weight of the cooling block is increased, which is not convenient for actual operation. C in the graphite state affects the accuracy of spectral analysis data. In practical applications, chemical detection, X-ray fluorescence, and carbon-sulfur detection are often used for detection, which increases the repeatability of the inspection; Fixed natural cooling, so the cooling speed is slow, not only the production efficiency is low, but also the analysis quality is affected. If the cooling speed is accelerated, the chilling method is currently used. This chilling method cannot guarantee the quality of white tissue; Fifth, only one sample can be prepared at a time, which cannot meet the selection of the required components of the cast product; sixth, the compactness of the cast iron sample is not ideal, and the inclusion of impurities and gases often cause casting defects, which increases the sample preparation process. Uncertainty factors in

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