Semi-filled corrugated hybrid sandwich plate of foam material and preparation method of semi-filled corrugated hybrid sandwich plate of foam material

A foam material and foam filling technology, used in chemical instruments and methods, lamination, manufacturing tools, etc., can solve the problems of low lateral support strength and crush strength, improve local buckling performance, reduce plastic deformation, The effect of improving impact resistance

Inactive Publication Date: 2017-05-31
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the disadvantages of low lateral support strength and crush strength of the corrugated core wall board, provide a foam material semi-filled corrugated hybrid sandwich board, enhance the dynamic stability of the core wall board, and improve the sandwich board. Impact resistance and specific energy absorption

Method used

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  • Semi-filled corrugated hybrid sandwich plate of foam material and preparation method of semi-filled corrugated hybrid sandwich plate of foam material
  • Semi-filled corrugated hybrid sandwich plate of foam material and preparation method of semi-filled corrugated hybrid sandwich plate of foam material
  • Semi-filled corrugated hybrid sandwich plate of foam material and preparation method of semi-filled corrugated hybrid sandwich plate of foam material

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Effect test

Embodiment example 1

[0026] Implementation case 1: 1) Firstly, the 304 stainless steel plate is made into a corrugated core layer by molding and folding technology, and then cut into the design size by wire electric discharge cutting (EDM). The board is made of upper and lower panels by laser cutting technology. The in-plane size is 452mm long and 440mm wide. The corrugated core layer and the panel are cleaned to remove the residual oil in the process, and connected by laser welding technology. Filled corrugated sandwich panels; 2) Then, according to the size of the pores of the corrugated core layer, the foam sheet is cut into trapezoidal prisms that match the size of the pores; 3) Finally, the trapezoidal prism-shaped foam is filled to all In the pores of the corrugated core layer near the upper panel, a half-filled corrugated hybrid sandwich panel is obtained.

Embodiment example 2

[0027] Implementation case 2: 1) First, the 304 stainless steel plate is made into a corrugated core layer by molding and folding technology, and then cut into the design size by wire electric discharge cutting (EDM). The board is made of upper and lower panels by laser cutting technology. The in-plane size is 452mm long and 440mm wide. The corrugated core layer and the panel are cleaned to remove the residual oil in the process, and connected by laser welding technology. Filled corrugated sandwich panels; 2) Then, according to the size of the pores of the corrugated core layer, the foam sheet is cut into trapezoidal prisms that match the size of the pores; 3) Finally, the trapezoidal prism-shaped foam is filled to all In the pores of the corrugated core layer close to the side of the lower panel, a half-filled corrugated hybrid sandwich panel is obtained.

[0028] Adopt following experiment verification effect of the present invention:

[0029] Specimen Nos. TP-1 and TP-2 ar...

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Abstract

The invention discloses a semi-filled corrugated hybrid sandwich plate of a foam material and a preparation method of the semi-filled corrugated hybrid sandwich plate of the foam material. Only one half of hole in a corrugated core layer is filled with the foam material, so that caused weight increment is not obvious and the filling gain and the specific energy absorption of the sandwich structure are improved. Meanwhile, the semi-filled corrugated hybrid sandwich plate is simple in structure form, easy to prepare and low in preparation material consumption. According to the foam-filled material, on one hand, impact energy can be absorbed through crushing deformation; and on the other hand, contribution of the support stiffness can be provided, the lateral support on a corrugated core layer wall plate is beneficial to improvement of the crushing strength of the core layer wall plate and the dynamic instability critical load, the local buckling performance of a panel and the corrugated core layer is improved, the plastic deformation of the panel can be effectively reduced, and the shock resistance of the sandwich structure is improved through coupling of two materials.

Description

technical field [0001] The invention relates to a metal-foam filling material composite material, in particular to a foam material semi-filled corrugated hybrid interlayer board and a preparation method thereof. Background technique [0002] Foam materials such as foamed aluminum and PVC foam have high porosity and are light and high-strength materials. They have good cushioning and energy-absorbing properties under explosive impact loads, but their transverse shear strength and bearing capacity are weak, so they are not suitable for use alone. Loading structure. Steel corrugated sandwich panels have higher stiffness and load-carrying capacity, but the support strength of the corrugated core layer is low, and the core wall panels are prone to lateral instability, which cannot fully exert the impact energy absorption effect of corrugated sandwich panels. The foam material is filled into the pores of the corrugated sandwich panel core to form a hybrid sandwich panel, which ca...

Claims

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Application Information

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IPC IPC(8): B32B15/01B32B3/28B32B3/08B32B33/00B32B38/00B21D13/02B23K28/02
CPCB21D13/02B23K28/02B32B3/08B32B3/28B32B15/011B32B33/00B32B38/00B32B38/0004B32B38/0012B32B2305/30B32B2307/56
Inventor 张攀程远胜刘均陈赶超张长仔
Owner HUAZHONG UNIV OF SCI & TECH
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