CN101850638A

CN101850638A - Novel foam-filled honeycomb sandwich board

Info

Publication number: CN101850638A
Application number: CN201010191870A
Authority: CN
Inventors: 王韬
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-04
Filing date: 2010-06-04
Publication date: 2010-10-06

Abstract

The invention discloses a novel foam-filled honeycomb sandwich board, the structure of which comprises a pyramidal honeycomb core, rigid polyurethane foam and panels clamping both sides of the rigid polyurethane foam. Mould pressing, rolling and other methods are utilized to process a whole board/sheet into a latticed supporting body-shaped core board as the pyramidal honeycomb core with a series of staggered concave-convex truncated pyramids on both sides, a V-shaped groove can be formed at the joint between the slanted arrises of neighboring raised truncated pyramids, so that the notches of the truncated pyramids on the core board are communicated with one another, moreover, the vertex of each truncated pyramid body is a small plane, so that the panels on both sides can be conveniently bonded, and the rigid polyurethane foam plastic is filled in the clearance of the pyramidal honeycomb core between the panels on both sides. The produced novel foam-filled honeycomb sandwich board has all the advantages of the honeycomb sandwich board and the foam sandwich board, and is a novel composite-structured board with the advantages of reasonable structure, excellent performance, light weight, high strength and simple and easy production technique, which can be widely applied in various fields such as aeronautics and aerospace, vehicles, ships, furniture and buildings.

Description

Novel foam-filled honeycomb sandwich board

Technical field

The present invention relates to a kind of composite, be specially a kind of hard polyurethane foams filled honeycomb sandwich board.

Background technology

Existing Composite Sandwich plate mainly is divided into honeycomb sandwich structure plate and foam sandwich construction plate two classes, the difference of two kinds of battenboards is the core difference, the former core mainly contains aluminium honeycomb, plastic honeycomb, glass cloth honeycomb etc., and the latter's core mainly is a rigid foam.Two kinds of materials " high-strength light " advantage is a lot, has been widely used among all trades and professions and the daily life.But in use also all there are some defectives, as the former complex manufacturing technology, easily unstability,, fatigue resistance difference poor etc. with the adhesive property of panel.The latter's appearance has remedied some defectives of honeycomb core battenboard, but foam battenboard shear strength and rigidity but will be lower than honeycomb sandwich board.These defectives limit to some extent and have influenced its applying on load-carrying construction.

Summary of the invention

Purpose of the present invention is exactly for " depositing the excellent defect that goes " provides a kind of premium properties that has honeycomb sandwich board and foam battenboard concurrently, rational in infrastructure, the simple novel foam filling honeycomb sandwich board of making.

Scheme of the present invention is: a kind of novel foam-filled honeycomb sandwich board comprises pyramid honeycomb core and hard polyurethane foams and the panel that is clipped in its both sides.The pyramid honeycomb core can utilize methods such as mold pressing, roll extrusion, entire plate/sheet material is processed into a series of concavo-convex staggered frustum of a pyramid shape dot matrix supporter central layers that highly equate, the frustum slant edge junction of adjacent protrusion can form v-depression, and connect mutually between the pyramid groove on central layer surface, pyramid stage body top is a facet, make things convenient for being adhesively fixed of upper and lower panel, its structure can be made into triangular pyramid honeycomb core or rectangular pyramid honeycomb core shape.Pyramid honeycomb core, both sides panel can be with metallic plate or non-metal board/sheet preparation.Between the panel of both sides, be that support frame is a foam filled RPUF in the space of pyramid honeycomb core with the pyramid honeycomb core, both sides panel and pyramid honeycomb core and hard polyurethane foams are bonded together securely, and provide continuous supporting role it.

Owing to adopted above-mentioned pyramid honeycomb core composite laminboard, and hard polyurethane foams is filled in the pyramid honeycomb core, honeycomb sandwich construction is carried out the technique for enhancing scheme, and novel foam-filled honeycomb sandwich board of the present invention has the excellent comprehensive performance of honeycomb sandwich board and foam battenboard concurrently.Honeycomb core is that many ribs frustum of a pyramid dot matrix supporter constitutes and monoblock processes by concavo-convex staggered pyramidal shape, and the intensive pyramid honeycomb stage body that these pin down mutually, support has mutually constituted a firm cellular board new structure under the effect of both sides panel.And in the space of cellular board laminboard layer foam filled hard polyurethane foams, and be bonded in securely on both sides panel and the pyramid honeycomb core, provide continuous supporting role to both sides panel and honeycomb core, make both sides panel, pyramid honeycomb core become the as a whole whole load that composite laminboard may bear of bearing with hard polyurethane foams, its performance greatly improves, and has very big advantage at opposing impact, energy absorption and aspects such as shear strength, rigidity and heat-insulation and heat-preservation.From manufacturing the pyramid honeycomb core is polygonal pyramid platform shape, be difficult for during shaping tearing, forming technology is simply easy, and polyurethane is owing to have the characteristics of fast foaming curing and good bonding force, foam filled simple and convenient equally, cost is low, but is the NEW TYPE OF COMPOSITE battenboard that a kind of rational in infrastructure, excellent performance continuous high-efficient is produced

Description of drawings

Fig. 1 is a triangular pyramid honeycomb core schematic diagram;

Fig. 2 is a rectangular pyramid honeycomb core schematic diagram;

Fig. 3 is a rectangular pyramid honeycomb core cross sectional representation;

Fig. 4 is the novel foam-filled honeycomb sandwich board schematic diagram;

Among the figure: 1-frustum of a pyramid facet, 2-panel, 3-pyramid honeycomb core, 4-V connected in star, 5-hard polyurethane foams.

The specific embodiment

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Figure 4, a kind of novel foam-filled honeycomb sandwich board of the present invention comprises pyramid honeycomb core 3 and is clipped in the panel 2 of its both sides and the hard polyurethane foams 5 of spraying or perfusion filling.Described panel 2 can adopt the metal material of 1mm to 2mm, as industrial aluminium sheet, corrosion resistant plate, steel plate etc.; Also can adopt nonmetallic materials such as the making such as plastic plate, glass epoxy of 1mm to 2mm.The panel of both sides can adopt same material, also can adopt foreign material to make up arbitrarily, take all factors into consideration selection according to instructions for use and environment.

Fig. 1, shown in 2, the material of described pyramid honeycomb core 3 preparations can adopt metal material, as industrial aluminium sheet, corrosion resistant plate, steel plate etc., also can adopt nonmetallic materials such as plastic plate/sheet material, SMC molded tablet etc., be to use monoblock sheet material or sheet material through mold pressing, the dot matrix supporter of a series of concavo-convex staggered frustum of a pyramid shapes that highly equate is processed in roll extrusion etc., thereby form the interdependent each other concavo-convex pyramid-shaped structures integral body that interacts, frustum of a pyramid plane 1 panel 2 that is used for being adhesively fixed, the v-depression 4 that connects is used for flowing of polyurethane reaction mixed liquor and foam filled mutually, and the pyramid honeycomb core can be the triangular pyramid stage body, taper stage bodies such as rectangular pyramid stage body are (as Fig. 1, shown in 2).Pyramid stage body size and arrangement pitches will be according to the performance and the thickness of required core material, and the cellular board thickness of slab that will prepare, intensity, rigidity and shaping difficulty or ease are taken all factors into consideration design.

Shown in Figure 4, described novel foam-filled honeycomb sandwich board, be that pyramid honeycomb core 3 and hard polyurethane foams 5 that is shaped by monoblock sheet material or sheet material and the panel 2 that is clipped in its both sides constitute, spraying or injection polyurethane reaction mixed liquor between pyramid honeycomb core and the both sides panel, the v-depression 4 that utilizes pyramid honeycomb core plate upper surface or lower surface to connect, foam filled full whole space, make the both sides panel, pyramid honeycomb core and foamed plastics bond together securely, and provide continuous supporting role to both sides panel and honeycomb core, form an interaction, supported firm battenboard new structure mutually.

Describedly foam-filledly can also adopt materials such as polystyrene foam plastics, epoxy foam plastics, PVC foamed plastics.

The remarkable excellent results of the present invention is between biside plate take pyramid honeycomb core as support frame, carry out foam filled with hard polyurethane foams at last, prepared novel foam-filled honeycomb composite laminboard, have all advantages of honeycomb sandwich board and foam battenboard concurrently, has good resistance to compression, bending resistance, shock resistance, mechanical property and the combination properties such as the anti-fissility of panel and insulation such as anti-shearing, a kind of rational in infrastructure, excellent performance, preparation technology simply is easy to the compound structure for new residence plate, can be in Aero-Space, vehicle, boats and ships, furniture, building waits the numerous areas extensive use.

Claims

1. novel foam-filled honeycomb sandwich board, comprise pyramid honeycomb core (3) and hard polyurethane foams (5) and the panel (2) that is clipped in its both sides, it is characterized in that: accompany the pyramid honeycomb core between the panel of described novel foam-filled honeycomb sandwich board both sides, and with affixed being integral of facet (1) on the pyramid stage body, foam filled hard polyurethane foams in the space of pyramid honeycomb core.

2. novel foam-filled honeycomb sandwich board according to claim 1, it is characterized in that: described pyramid honeycomb core (3) is to be processed into a series of concavo-convex staggered frustum of a pyramid shape dot matrix supporter central layers that highly equate by entire plate/sheet material, and the frustum of a pyramid facet (1) for affixed both sides panel is arranged.

3. novel foam-filled honeycomb sandwich board according to claim 1 and 2 is characterized in that: the frustum slant edge junction that described pyramid honeycomb core (3) is gone up adjacent protrusion can form v-depression (4), and connects mutually between the pyramid groove on central layer surface.

4. novel foam-filled honeycomb sandwich board according to claim 1 and 2 is characterized in that: the shape of described pyramid honeycomb core (3) can be made into triangular pyramid honeycomb core or rectangular pyramid honeycomb core.

5. novel foam-filled honeycomb sandwich board according to claim 1 is characterized in that: panel (2) and pyramid honeycomb core (3) can adopt metal or non-metal board/sheet preparation.