Air pressure type device for detecting aluminum melt impurity and method thereof

Abstract

The invention provides air-pressure typed aluminium melt inclusion detection equipment and a method thereof, belonging to the field of casting technique. The detection equipment consists of three parts: an air pressure system, a temperature control system and a filter weight-measurement system; the air pressure system is arranged outside the range of temperature control and provides stable pressure difference for the filter weight-measurement system; the temperature control system is arranged inside the air pressure system and at the external side of the filter part of the filter weight-measurement system, thus ensuring stable temperature during the filtration process; the filter weight-measurement system consists essentially of two parts: a filter part and a weight-measurement part, wherein, the filter part is arranged in the temperature control system and the weight-measurement part is placed right below the filter part; the filter weight-measurement system completes the filtration of the inclusion in the aluminium melt and measures and memorizes the weight of the filtrated aluminium melt in real time. The pressure difference by air pressurization is high, thus avoiding the vacuum pressurized and filtrated hot air from corroding the container; the pressure container has safe and stable structure; and the equipment has compact structure and the measurement result of the inclusions in the aluminium melt is exact and highly effective.

Description

technical field [0001] The invention relates to a detection device and a method in the field of casting technology, in particular to a pneumatic type aluminum melt inclusion detection device and a method thereof. Background technique [0002] In the aluminum foundry industry, it has always been a prominent problem to quickly evaluate the cleanliness of aluminum melts on site, because typical inclusions of oxides, salts, carbides, nitrides, borides, etc. in aluminum will seriously affect the quality of castings. Therefore, it is necessary to effectively detect the cleanliness of the aluminum melt before casting, and carry out necessary slag removal treatment. In the existing conventional methods for measuring the cleanliness of aluminum melts, neither wet chemical analysis nor instrumental analysis of inclusions is very successful, because the distribution of inclusions is uneven; although quantitative metallography has been automated, there is also a problem of whether the s...

AI Technical Summary

Problems solved by technology

Its shortcoming is that it is only used as a device for sampling inclusions, but cannot realize rapid detection

It has temperature and vacuum control capabilities, weight data processing capabilities, and more convenient system upgrade capabilities. The control system is easy to operate and stable in function, but there are also some shortcomings in the actual use process: although the method of vacuuming and pressurization is simple and safe , but the pressure difference is only one atmosphere at most, and the hot air is corrosive to the container and the weight sensor during the vacuum pressure filtration process

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