Liquid metal density measurement device and method
A liquid metal and density measurement technology, which is applied in the direction of measuring devices, specific gravity measurement, instruments, etc., can solve the problems of large volume of liquid metal experiments, affecting the accuracy of experimental measurement, difficulty in selecting auxiliary materials, etc., so that experimental measurement is easy to carry out and popularize and application, easy-to-build effects
Active Publication Date: 2015-12-02
HEFEI UNIV OF TECH
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Problems solved by technology
For example, the Archimedean method requires a large volume of liquid metal experiment, and the selection of experimental auxiliary materials is difficult, and there are many limiting factors; and for the dilatometer method, the existence of surface tension will undoubtedly affect the measurement accuracy of the experiment
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[0044] In order to further discuss the present invention, two quaternary alloys Ce will be combined below 70 Al 10 Cu 19.5 co 0.5 and Ce 70 Al10 Cu 18 co 2 An example of liquid density measurement will be described in detail.
[0045] The samples of the examples of the present invention are all prepared from raw materials with a purity of 99.99% of Al, Cu and Co and 99% of Ce. After the preparation is completed, it is necessary to use an empty smelting furnace to suction cast a 2mm rod-shaped sample. Before the measurement experiment, the surface of the sample must be polished and polished to ensure that the sample can be placed in a quartz tube with an inner diameter of 2mm. The suction casting process is protected by argon. To ensure uniform composition, the sample needs to be smelted at least 5 times in the vacuum melting furnace.
[0046] Proposed in the present invention is used for measuring liquid alloy Ce 70 Al 10 Cu 19.5 co 0.5 and Ce 70 Al 10 Cu 18 co ...
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The invention discloses a liquid metal density measurement device and a liquid metal density measurement method. The liquid metal density measurement device is characterized by comprising a top plate, an upper-end quartz tube, a to-be-tested metal sample, a lower-end quartz tube, a fixed graphite block and a slide block, wherein the top plate, the slide block and the fixed graphite block form a main module; the slide block has a horizontal movable structure between the top plate and the fixed graphite block; the upper-end quartz tube is arranged on the axial position of the slide block; the lower-end quartz tube is arranged in the center of the fixed graphite block along the axial position; in the fixed graphite block, an adjustment ejector rod is arranged below the lower-end quartz tube; and the upper-end quartz tube and the lower-end quartz tube can form a first work station and a second work station under the action of the slide block. According to the invention, the density data with high precision of melt of liquid metal and alloy can be obtained by the measurement device which is easy to operate and convenient in measurement, so that reliable technical support and data support are provided for related theoretical research and engineering application of the liquid metal and alloy.
Description
technical field [0001] The invention relates to a liquid metal density measuring device and a measuring method, which are suitable for measuring the density of most metals, alloys or other non-metallic materials in a molten state. Background technique [0002] As an important order parameter to describe the state of matter, density is self-evident for solid crystals with long-range order in space, and for liquids and gases with long-range disorder. In liquid metals or alloys, the density is the most direct parameter reflecting the atomic packing state of the system, and its numerical value directly determines the size of the radial distribution function that characterizes the spatial atomic structure of the melt. In phenomena such as liquid-liquid transition and liquid-solid phase transition, density is the basis for constructing relevant theories. When discussing the basic behavior and properties of liquid metal, density is an indispensable basic physical quantity. All the...
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Login to View More IPC IPC(8): G01N9/04
CPCG01N9/04
Inventor 张博胡金亮钟浪祥
Owner HEFEI UNIV OF TECH