Refrigeration compartment board and preparation method thereof

A technology for carriage boards and polyurethane foam boards, applied in refrigerated cargo transportation, chemical instruments and methods, vehicle parts, etc., can solve the problems of low board making efficiency, low strength of interlayer structure, poor thermal insulation, etc., and achieve high production efficiency, Avoid weak bonding and good waterproof performance

Active Publication Date: 2018-09-18
SYST EQUIP CO LTD OF THE 28TH RES INST LI YANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to provide a refrigerated car panel and its preparation method, which solves the technical problems of low plate making efficiency, poor thermal insulation, and low interlayer structural strength in most refrigerated car panels in the prior art

Method used

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  • Refrigeration compartment board and preparation method thereof
  • Refrigeration compartment board and preparation method thereof
  • Refrigeration compartment board and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Such as figure 1 Shown, in this embodiment, a kind of refrigerated compartment panel, comprises frame composite structure, frame and upper skin 4, lower skin 3; Said frame composite structure comprises A layer 1 and B layer 2, wherein A layer comprises The frame and the skinned polyurethane foam board filled in the frame; the B layer is a whole piece of skinned polyurethane foam, and the A layer and the B layer are bonded by hot-melt adhesive; the frame is made of a plurality of waterproof wooden strips 5 . In the present embodiment above, grooves are opened in the layer B of the frame composite structure, and profiles and buried iron are arranged in the grooves. In this embodiment, the profiles are waterproof wooden strips; in other embodiments, the profiles can be one or a combination of metal profiles, fiberglass profiles, or waterproof wood profiles.

[0043] In this embodiment, the side of the refrigerated compartment panel provides a focus point for installing ex...

Embodiment 2

[0046] The preparation method of the refrigerated compartment panel in embodiment one comprises the steps:

[0047] 1) Prepare several sheets of fire-resistant crusted rigid polyurethane foam boards, two skins, hot melt adhesive and ordinary wood;

[0048] 2) Prepare the frame: inject the waterproofing agent into the interior of ordinary wood under a high pressure of 50-70Mpa. The gaps between the wood fibers are filled with the reactants of the waterproofing agent and the active groups on the wood cellulose group molecules, and the passage of water in and out Closed to form waterproof wood, the water absorption rate of waterproof wood is ≤0.5%, the waterproof wood is processed into waterproof wood strips according to the design size requirements, and the waterproof wood strips are combined into a frame through carpentry nails;

[0049] 3) Apply a layer of hot melt adhesive on one bonding surface of the first skin, then place the frame on the surface of the skin coated with hot ...

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Abstract

The invention discloses a refrigeration compartment board and a preparation method thereof. The refrigeration compartment board comprises a frame composite structure and skins pasted to the upper surface and the lower surface of the frame composite structure through hot melt adhesive. The frame composite structure comprises a layer A and a layer B, wherein the layer A comprises a frame and a skinning polyurethane foam board filled in the frame; the layer B is a skinning polyurethane foam board, and the layer A and the layer B are pasted through the hot melt adhesive; and the frame is made frommultiple waterproof battens, a waterproof agent is injected into common wood under the high pressure to form waterproof wood, and the waterproof wood is machined into the waterproof battens. The refrigeration compartment board is good in waterproof performance and good in heat preservation effect, a double-layer seam elimination composite structure is adopted, certain rigidity of sandwich boardscan be guaranteed, heat conduction generated by foam seams can be effectively eliminated, heat transmission is stopped, and a heat preservation effect is remarkable. The board manufacturing efficiencyis high, a quick-forming board manufacturing process is adopted, a component is quickly located, each sandwich board is compositely formed only within 10 min to 15 min, and the board manufacturing efficiency is high.

Description

technical field [0001] The invention belongs to the field of refrigerated cars, and in particular relates to a refrigerated car board and a preparation method thereof. Background technique [0002] At present, the refrigerated compartment panels are mainly injection foam structure and ordinary sandwich structure. Among them, the injection foam structure: the sandwich panel skeleton and the inner and outer skins are pressed and bonded with an adhesive, and then fixed with a tooling fixture, the foamed castable is poured from the sandwich panel port, and the port is closed after pouring And fix it, make the castable fully foam and solidify into shape, remove the tooling and fixture, and bond the skin and the skeleton together through the foam material. [0003] The injection foam structure has the following disadvantages: [0004] 1) The interlayer structure strength is low: the pores of the foamed foam are too large, resulting in poor adhesion between the skin and the foam ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60P3/20B62D33/04B32B7/12B32B27/40B32B27/06B32B21/04B32B3/08B32B37/12
CPCB32B3/08B32B5/32B32B7/12B32B21/04B32B21/047B32B37/12B32B2266/0278B32B2307/7265B32B2605/00B60P3/20B62D33/048
Inventor 魏国升胡迪史顺达田阳孙嘉姜峰臧伟
Owner SYST EQUIP CO LTD OF THE 28TH RES INST LI YANG
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