Quick determination device for surface tension of liquid metal and liquid alloy

Abstract

It is a rapid measurement apparatus for liquid metal and liquid alloy surface tension and it relates to metallurgy and foundry field. The power input end (1-1) is connected with output end of (11) power; the down end of (1-2) is connected with (4) and the upper end of (4-2) is connected with (4-1); the two gas-in end of (5) is separately connected with vent of (6)(6-1); the controlled end of (6) is connected with output end of (11); the controlled end of (5) is connected with output end of (11); the output end of (2) is connected with input end of (11) through (7); the output end of (3) is connected with input end of (11) through (11); the output end of (11)is connected with input end of (9); the output end of (12)is connected with input end of (11).

Description

Technical field: [0001] The invention relates to the field of metallurgy and casting, in particular to a rapid measuring device for the surface tension of liquid metal and liquid alloy. Background technique: [0002] Surface tension is one of the important physical parameters of liquid metals and liquid alloys. Many quality parameters, such as cast iron graphite morphology, aluminum alloy modification treatment effect, alloy filling ability, etc., are closely related to the surface tension of its alloy liquid. The traditional methods for measuring the surface tension of liquid alloys mainly include bubble maximum pressure method, static drop method, and pulling cylinder method, etc., and the measurement time is more than a few minutes. So far, there is no real rapid detection method for the furnace detection of the surface tension of liquid alloys. Therefore, the desire to evaluate the relevant quality parameters of liquid alloys in real time using surface tension has not ...

AI Technical Summary

Problems solved by technology

However, due to the downward blowing method of the linear capillary, when measuring liquid metal and liquid non-ferrous alloys, the surface oxide film is easy to wrap the capillary quartz nozzle; It is easy to enter the capillary quartz tube; the above phenomenon leads to the phenomenon that no air bubbles can be blown out and the pressure difference curve is not equal, which seriously affects the measurement accuracy and hinders the popularization and application of the "bubble amplitude-frequency equivalent method".

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