Method for vacuum bonding of polymer foam sandwich plate and glass fiber-reinforced plastic
A technology of polymer foam and bonding method, applied in the field of glass fiber reinforced plastic product manufacturing, can solve the problem of inability to apply pressure on the vertical surface, and achieve the effect of solving the problem of pressure application, convenient operation and uniform pressure
Inactive Publication Date: 2012-12-12
BENGBU SHENZHOU MACHINERY
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Problems solved by technology
[0004] The purpose of the present invention is to solve the defects of the existing direct bonding method of polymer foam sandwich materials and FRP that cannot be uniformly pressed, resulting in blank areas in the bonding, and the inability to apply pressure on the vertical plane, to provide a polymer foam Vacuum Bonding Method of Sandwich Panel and FRP
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[0012] The present invention adopts such as figure 1 , figure 2 The vacuum bonding system shown, the vacuum bonding method between the polymer foam sandwich panel and FRP, includes the existing processing steps: two polymer foam sandwich panels 4 are arranged on the glass partition 2, and the polymer foam sandwich panel The surface of the board 4 is evenly painted with diluted resin, and then a layer of resin putty is rolled on the surface of the polymer foam sandwich board 4 and the glass fiber reinforced plastic 2, and the polymer foam sandwich board 4 and the glass fiber reinforced plastic 2 are bonded together; it is characterized in that Include the following steps:
[0013] a. Use plastic cloth 1 to cover two polymer foam sandwich panels 4, and seal them with sealant 3 and glass fiber reinforced plastic 2 at a place 5 cm away from the edge of the polymer foam sandwich panels;
[0014] b. Connect two vacuum valves 5 on the plastic cloth corresponding to each polymer fo...
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The invention relates to a method for vacuum bonding of a polymer foam sandwich plate and a glass fiber-reinforced plastic. The method comprises the following steps of uniformly coating a dilute resin on the surface of a polymer foam sandwich plate by brushing, coating resin putty layers on surfaces of the polymer foam sandwich plate and glass fiber-reinforced plastic by rolling, and folding and bonding the polymer foam sandwich plate and the glass fiber-reinforced plastic. The method is characterized by comprising the following steps of a, covering the polymer foam sandwich plate (4) by a plastic cloth (1), and sealing the glass fiber-reinforced plastic (2) and polymer foam sandwich plate parts close to polymer foam sandwich plate part edges by a sealant (3), and b, connecting a vacuum pump (5) to the plastic cloth (1), connecting the vacuum pump (5) to a vacuum pump (9), and carrying out vacuum-pumping. The method has the advantages that a polymer foam plate sandwich material is compressed by enclosed-space vacuum-pumping and thus pressure on parts of the polymer foam plate sandwich material is uniform and a pressure blind point does not exist; compression problems of a vertical polymer foam plate sandwich material are solved; and operation is convenient and efficiency is high.
Description
Technical field: [0001] The invention relates to the field of FRP product manufacturing, in particular to a method for bonding polymer foam sandwich panels in a FRP hull. Background technique: [0002] At present, the polymer foam sandwich material is bonded with FRP, mainly using the method of heavy pressure for bonding, with an average pressure of 20kg per square meter. The specific steps are: 1. Evenly brush the diluted resin on the surface of the foam to improve the foam and FRP. 2. Roll a layer of resin putty on the surface of polymer foam and FRP, and close the polymer foam and FRP for bonding; 3. Load heavy objects and wait for the adhesive to cure. [0003] This method is cumbersome to operate, especially when the FRP is on the vertical surface, and it is difficult to apply pressure evenly, which leads to the existence of blank bonding areas on the bonding surface of the foam board, especially when subjected to variable loads, it is easy to make the foam The board i...
Claims
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Inventor 刘国强史正波郭志国
Owner BENGBU SHENZHOU MACHINERY