Sandwich composite pipe and rapid forming method thereof

Abstract

The invention discloses a sandwich composite pipe and a rapid forming method thereof, which are mainly applied to electric power bearing pipe engineering. The sandwich composite pipe consists of an inner skin and an outer skin, wherein a sandwich layer is clamped between the inner skin and the outer skin. The sandwich composite pipe is characterized in that the sandwich layer is composed of an outline board which is formed by horizontally arranging and fixing a plurality of stripped materials into a whole. The forming method comprises the following steps of: forming the inner skin and the outer skin and paving the sandwich layer between the inner skin and the outer skin, wherein the sandwich layer is composed of the outline board which is formed by horizontally arranging and fixing a plurality of stripped materials into a whole. The forming steps of the outline board are as follows: (1) processing any one selected from a bamboo board, a cork wood, a foam material or an extruding and drawing rod into the stripped materials; and (2) juxtaposedly arranging several stripped materials on a plane and fixing into a row; compounding the inner skin, the outline board and the outer skin on a tubular die to form a pipe, and solidifying and forming. The sandwich composite pipe is light in weight, small in deformation amount, low in cost, rapid in forming and easy to popularize and apply.

Description

technical field [0001] The invention relates to a sandwich composite material pipe fitting used in electric power bearing pipe fitting engineering and a rapid prototyping method thereof. Background technique [0002] In the existing power-bearing pipe fittings project, the core material of sandwich composite pipe fittings is mainly quartz sand, and the composite pipe fittings with quartz sand as the sandwich material have the following defects in the molding process: 1) Inner Mongolia After the skin is made, it needs to be cured naturally before the sand layer can be covered; in the process of adding sand, the sand material needs to use special equipment and needs to be covered multiple times. When the sand layer reaches the required thickness, It also needs to be naturally cured before the outer skin can be made; the same is true for the molding of the outer skin; because it needs to be naturally cured after each process, the molding time of the pipe fittings is long, and t...

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Problems solved by technology

[0002] In the existing power-bearing pipe fittings project, the core material of sandwich composite pipe fittings is mainly quartz sand, and the composite pipe fittings with quartz sand as the sandwich material have the following defects in the molding process: 1) Inner Mongolia After the skin is made, it needs to be cured naturally before the sand layer can be covered; in the process of adding sand, the sand material needs to use special equipment and needs to be covered multiple times. When the sand layer reaches the required thickness, It also needs to be naturally cured before the outer skin can be made; the same is true for the molding of the outer skin; because it needs to be naturally cured after each process, the molding time of the pipe fittings is long, and the general molding time is 6-6. 8 hours; 2) In order to prevent the resin glue remaining in the glue tank from solidifying in the glue tank during the process of adding sand, the glue tank must be cleaned in time; the equipment used for adding sand needs to be cleaned in time, otherwise it will cause It is difficult to clean the resin solidified in the glue tank or equipment, which directly affects the subsequent production process; resulting in cumbersome operation and complicated process of the molding method; 3) Due to the certain quality of quartz sand, the product quality of composite pipe fittings made of sandwich materials Large; will limit the scope of application of the fitting

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