Device and method for preparing fiber reinforced silica sol composite shell through airflow laying
A technology of fiber reinforcement and silica sol, which is applied in the direction of molds, cores, and mold components, etc., can solve problems such as uneven fiber mixing, uneven fiber distribution, and reduced strength, so as to improve filling ability and simple operation OK, improve the effect of air permeability
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[0049] Example 1
[0050] The device for preparing fiber-reinforced silica sol composite shell by airflow laying in this embodiment includes a fiber laying room 2, a fiber storage room 13, an air supply unit and a bracket 8. The fiber laying room 2 is composed of four side vertical plates. And an upper bottom surface venting orifice plate 1 composed of a hollow cube shape, the upper bottom surface venting orifice plate 1 is provided with vent holes 14, and the fiber placement chamber 2 is installed with a bearing mold sample 3 Rotating shaft 3; the fiber storage chamber 13 is a hollow inverted quadrangular pyramid composed of four side panels and a lower bottom air inlet orifice plate 16, the fiber storage chamber 13 is installed with a fiber storage rack 6, so The fiber storage rack 6 is provided with air flow holes 7; the fiber placement chamber 2 is located directly above the fiber storage chamber 13, and the side length of the side vertical plate of the fiber placement chambe...
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[0055] Example 2
[0056] A method for preparing a fiber-reinforced silica sol composite shell by air laying the device for preparing a fiber-reinforced silica sol composite shell in Example 1. The device for preparing a fiber-reinforced silica sol composite shell by air-flow laying includes a fiber placement chamber 2. The storage chamber 13, the air supply unit, and the support 8. The fiber placement chamber 2 is a hollow cube composed of four side vertical plates and an upper bottom exhaust orifice plate 1. The upper bottom exhaust orifice plate 1 An air vent 14 is opened on the upper side. The fiber placement chamber 2 is equipped with a rotating shaft 3 for carrying the shell sample 3; the fiber storage chamber 13 is composed of four side panels and a bottom air inlet plate 16 is composed of a hollow inverted quadrangular pyramid, the fiber storage chamber 13 is installed with a fiber storage rack 6, the fiber storage rack 6 is provided with air flow holes 7; the fiber place...
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