An artificial seeding method for preparing non-freezing model ice
A model and artificial technology, applied in the field of non-freezing model ice generation and preparation for simulating sea ice in alpine regions, to achieve low cost, reusable melting point, and rapid preparation
Active Publication Date: 2022-02-01
TIANJIN UNIV
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Problems solved by technology
The existing non-frozen model ice preparation method does not intervene in the crystallization process, and the model ice crystals are naturally crystallized and grown in a uniform and stable environment, thereby obtaining an isotropic and uniform crystal structure
Method used
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Embodiment Construction
[0026] The present invention will be described in detail below in conjunction with examples.
[0027] 1. Prepare the paraffin wax mixture solution. In order to effectively simulate the density of natural sea ice, paraffin wax with a density similar to sea ice was selected as the base material. Heat the solid paraffin until it completely melts into liquid paraffin. In order to improve the brittleness of non-frozen model ice and make it more similar to natural sea ice in terms of mechanical properties, 1% gypsum powder, 3% quartz powder and 1.5% silicon powder were added to liquid paraffin, and stirred evenly for later use.
[0028] 2. Assemble non-frozen modeling ice preparation molds. Use prefabricated ABS panels according to figure 1Stitched in style as shown, assemble the side and bottom panels of the non-frozen model ice preparation mold, securing the outside of the sheet with tape to facilitate removal of the mold when removing the model ice. 1 in the mold is a molding...
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The invention relates to an artificial seeding method for preparing non-freezing model ice. The steps are as follows: using paraffin as a base material, heating to form liquid paraffin, adding gypsum powder, quartz powder and silicon powder to the liquid paraffin to obtain a paraffin mixed solution; The glass fiber passes through each hole of the upper cover plate, and the length of the passage is the same as the thickness of the columnar crystal layer of the model ice to be prepared, and the distance between the glass fiber and the bottom plate of the mold is the same as the thickness of the granular crystal layer of the model ice; the upper cover of the connected glass fiber The plate is frozen in a low temperature environment, and the glass fibers are guaranteed to be parallel to each other and perpendicular to the upper cover; slowly pour the paraffin mixture solution into the mold, and cover the frozen glass fiber and the upper cover on the surface of the mold; The liquid paraffin mixture solution crystallizes and solidifies rapidly on the surface of the low-temperature glass fiber to form a columnar crystal structure. At this time, the mold is left to stand until the entire paraffin solution is cooled and solidified; non-freezing model ice based on the artificial seeding method is obtained.
Description
technical field [0001] The invention belongs to the technical field of engineering in alpine regions, and relates to a non-freezing model ice generation and preparation method for simulating sea ice in alpine regions. Background technique [0002] The model tests of ice mechanics and ice engineering often have the characteristics of both fluid model tests and material model tests. Among them, the material model test requires that the physical and mechanical properties of the model material and the prototype material meet the requirements of the model scale, so as to ensure that the failure mode and mechanical properties of the model material are similar and reducible. In the ice mechanics model test, the physical and mechanical properties of the prepared model ice are required to be similar to those of natural sea ice. [0003] Sea ice is a material with very complex mechanical properties, and the crystal structure characteristics of sea ice are determined by its crystalliz...
Claims
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IPC IPC(8): G01N1/28G01M10/00
CPCG01N1/28G01M10/00
Inventor 田育丰黄焱
Owner TIANJIN UNIV