Fibre reinforcement pyramid shape dot matrix sandwich board and preparation thereof

A pyramid-shaped, fiber-reinforced technology, applied in the direction of layered products, can solve the problems of difficulty in forming lattice sandwich panels, and achieve the effects of less product defects, strong designability, and high specific strength

Inactive Publication Date: 2008-08-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the difficulty in forming the existing lattice sandwich panels, the materials used are limited to metal materials, the invention provides

Method used

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  • Fibre reinforcement pyramid shape dot matrix sandwich board and preparation thereof
  • Fibre reinforcement pyramid shape dot matrix sandwich board and preparation thereof

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0013] Specific implementation mode one: combine figure 1 The present embodiment will be described. Present embodiment is made of upper panel 10, lower panel 11 and pyramid-shaped lattice column 9, and pyramid-shaped lattice column 9 longitudinally has an inclination angle and is arranged between upper panel 10 and lower panel 11, and pyramid-shaped lattice column 9 is Several, the upper surface of the pyramid-shaped lattice column 9 is affixed to the lower plane of the upper panel 10, and the lower surface of the pyramid-shaped lattice column 9 is affixed to the upper surface of the lower panel 11.

specific Embodiment approach 2

[0014] Specific embodiment two: the steps of this embodiment method are as follows:

[0015] Step 1. The mold is composed of a polygonal module 1, a special-shaped module 2, a trapezoidal module 3 and two large triangular modules 4. A plurality of semicircular grooves 5 are provided on the long hypotenuse of each special-shaped module 2. A plurality of semicircular grooves 12 are provided on the hypotenuse of each trapezoidal module 3, and semicircular grooves 13 are provided on the hypotenuse of each large triangular module 4, and each polygonal module 1 and each The center of the matching surface of the trapezoidal module 3 has a semi-elliptical hole 7 respectively, and two semi-elliptical holes 7 form an elliptical hole. The groove 12 communicates with the semicircular groove 5 on the long hypotenuse of the special-shaped module 2, and the semicircular groove 13 on the hypotenuse of each large triangular module 4 matches the long hypotenuse of the special-shaped module 2. ...

specific Embodiment approach 3

[0020] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the curing temperature in step 5 is 165° C., the temperature is maintained for 3 hours, the curing pressure is 1.5 MPa, and the pressure is maintained for 3 hours. Its steps are the same as in the second embodiment.

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Abstract

The invention discloses a fiber reinforced lattice laminboard in the shape of a pyramid and its preparation method, and relates to a fiber laminboard and its preparation method. The invention overcomes the difficult of forming to the lattice laminboard and the problem of that materials limits to metal materials. A plurality of the pyramid lattice pillars (9) are positioned between the upper plate(10) and the lower plate (11) obliquely and longitudinally, the upper head face of the pyramid lattice pillar(9) connects with the lower plane of the upper plate (10), and the lower head face of the pyramid lattice pillar(9) connects with the upper plane of the lower plate (11). Methods are (1) designing a mould, (2) assembling the mould, (3) spreading the upper plate (10)of fiber and the lower plate (11) which are prepared to immerse into material, (4) injecting the epoxy resin into the pyramid lattice pillar hole (10), (5) solidifying on a hydrostatic press by pressure and heat, then the fiber reinforced pyramid lattice laminboard is made. The composite material lattice laminboard of the invention has great specific tenacity, greater specific stiffness, simple process.

Description

technical field [0001] The invention relates to a fiber sandwich panel and a manufacturing method. Background technique [0002] Compared with metal materials, fiber reinforced composite materials have higher specific strength and specific stiffness. The materials used in the currently studied lattice sandwich structures are all metal materials, and their preparation methods are based on the wire weaving process based on the mesh lamination spot welding method, investment casting process and micro-contact printing technology. Rolling - electroplating welding process. The existing lattice sandwich panel is difficult to form, and the materials used are limited to metal materials, and the volume of the sandwich panel is heavy. Contents of the invention [0003] In order to solve the difficulty in forming the existing lattice sandwich panels, the materials used are limited to metal materials, the invention provides a fiber-reinforced pyramid-shaped lattice sandwich panel and...

Claims

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Application Information

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IPC IPC(8): B32B3/30B29C70/42B29C70/34B29C70/54B29C33/30B29K63/00B29K67/00B29K31/00B29K309/08
Inventor 吴林志王兵
Owner HARBIN INST OF TECH
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