Fabricating method of dot matrix metal plastics foam compound material

A metal-plastic and composite material technology, which is applied in the field of preparation of lattice metal-plastic foam composite materials, can solve the problems of low shear stiffness and strength, low transverse shear strength and bearing capacity, and weakened functions, and achieves low cost. Effect

Inactive Publication Date: 2008-07-23
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the usual laminates are mostly single structures such as foam, honeycomb or corrugated, which only have a single function, or a single function is strong while other functions are weakened. For example, the main advantage of closed-cell rigid foam as a core material is the application of its effective Vibration insulation, heat insulation and sound insulation, etc., but the shear stiffness and strength are lower than the lattice core material, and the transverse shear strength and bearing capacity are lower, which seriously limits the application of the foam core sandwich structure in the main structure
The inner truss-supported sandwich panels have higher transverse shear strength and bearing capacity, but because they do not contain viscoelastic high damping materials (such as rigid polyurethane foam), their energy dissipation performance is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1: First, the punching rhombic net is molded and folded to form a pyramid core, and then the pyramid core is prepared into a pyramid lattice sandwich panel by brazing or resistance welding, and then the sandwich panel is sealed around the sandwich panel with a 0.5mm aluminum plate , leaving a casting port, heated to 45°C in an oven to ensure that the mold cavity is clean and free from foreign matter such as water and oil; then take 90 parts of mannitol polyether, 20 parts of tris(2-chloroethyl) phosphate Esters, 3 parts of silicone oil, 2 parts of triethylenediamine with a mass concentration of 25%, 26 parts of dichlorofluoroethane and 120 parts of polymethylene polyphenyl polyisocyanate are stirred evenly to make a polymer mixture; The polymer mixture is cast into a pyramidal lattice sandwich panel for foaming, and after solidification, it is placed at 75°C for 4 hours for aging treatment, and the aluminum plate is removed to obtain a lattice metal-plastic fo...

Embodiment 2

[0009] Embodiment 2: First, the flattened steel mesh is molded and folded to form a pyramid core, and then brazing or resistance welding is used to prepare the pyramid core into a pyramid lattice sandwich panel, and then the aluminum plate of 1.2 mm is used to wrap the sandwich panel around Seal, leave a pouring port, heat to 50°C in an oven to ensure that the mold cavity is clean and free from foreign matter such as water, oil, etc.; then take 100 parts of mannitol polyether, 13 parts of tris(2-chloroethyl phosphate) ) ester, 5 parts of silicone oil, 4 parts of triethylenediamine with a mass concentration of 35%, 23 parts of dichlorofluoroethane and 140 parts of polymethylene polyphenyl polyisocyanate are stirred evenly to make a polymer mixture ; The polymer mixture is cast into a pyramid lattice sandwich board to foam, and after solidification, it is placed at 92°C for 3 hours for aging treatment, and the aluminum plate is removed to obtain a lattice metal-plastic foam compo...

Embodiment 3

[0010] Embodiment 3: First, the punching rhombic net is molded and folded to form a pyramid core, and then the pyramid core is prepared into a pyramid lattice sandwich panel by brazing or resistance welding, and then the sandwich panel is sealed around the sandwich panel with a 1.7mm aluminum plate , leaving a casting port, heated to 40C in an oven to ensure that the mold cavity is clean and free from foreign matter such as water and oil; then take 80 parts of mannitol polyether and 17 parts of tris (2-chloroethyl) phosphate , 1 part of silicone oil, 1 part of mass concentration of 30% triethylenediamine, 30 parts of dichlorofluoroethane and 150 parts of polymethylene polyphenyl polyisocyanate are stirred evenly to make a polymer mixture; The polymer mixture is cast into a pyramidal lattice sandwich panel for foaming, and after solidification, it is placed at 50°C for 5 hours for aging treatment, and the aluminum plate is removed to obtain a lattice metal-plastic foam composite...

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PUM

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Abstract

The invention provides a preparation method of a lattice metal plastic foam composite material, truss lattice metal material and foam plastic are compounded to obtain multifunctional compound porous material. The invention has great significance for realizing the preparation of the truss lattice metal material and the foam plastic. The lattice foam composite metal laminated board can be applied to floors, ceilings, and carriages of an urban rail, a subway and an express train and has wide application prospect; the board can effectively reduce the structural weight, improve the heat-insulating and magnetic shield performance and save energy and so on. Particularly, in the machine manufacturing industry, the high strength and high rigidity and the excellent damping performance of the board can be given full play; In addition, the manufacturing cost of the board is even lower.

Description

technical field [0001] The invention relates to a preparation method of a metal-plastic foam composite material, in particular to a preparation method of a lattice metal-plastic foam composite material. Background technique [0002] Metal laminates are a class of novel multifunctional materials that have emerged with the rapid development of material preparation and machining technology in recent years. Its core has high porosity, and its microstructure can be divided into two categories: disordered and ordered according to the degree of regularity. The former includes foamed materials (including open cells and closed cells), while the latter is mainly lattice materials (open cells ). [0003] At present, the usual laminates are mostly single structures such as foam, honeycomb or corrugated, which only have a single function, or a single function is strong while other functions are weakened. For example, the main advantage of closed-cell rigid foam as a core material is the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C44/12B29C44/60B29C44/36B23P15/00C08G18/76C08G18/48C08K5/00C08G101/00
Inventor 卢天健陈常青张钱城
Owner XI AN JIAOTONG UNIV
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