Method for improving mechanical properties and weight losing effects of honeycomb interlayer structure
A technology of honeycomb interlayer and structural mechanics, applied in the field of composite material molding, can solve the problems of poor bonding strength between honeycomb and panel, easy to increase, difficult to control the flow of resin in structural parts, etc., to achieve good bonding and reduce the amount of resin used.
Inactive Publication Date: 2016-01-06
HENGSHEN
View PDF1 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the poor bonding strength of honeycomb and panel, dry forming cannot be used in these fields; wet forming does not use adhesive film or resin film, which will greatly reduce the curing effect and the bonding strength of honeycomb and panel, while wet forming It is difficult to control the resin flow of the structural parts and easily increase the defects by increasing the resin content of the panel without using an adhesive film in the molding process.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0034] The method for improving the mechanical performance and weight reduction effect of the honeycomb sandwich structure adopts the following steps:
[0035] Such as Figure 4 , put the honeycomb 01 on the flexible template 04 coated with a uniform resin layer 032 with a thickness of about 1~3mm, press lightly for 10~20s, then remove the honeycomb 01 from the flexible template 04, and stick the honeycomb 01 with the resin Place the contact surface of the frame on the panel 021, press lightly for 1~2 minutes, and wait for it to be tightly bonded, and you can see that a beneficial resin form 031 is formed at the junction of the honeycomb 01 and the panel 021 on the panel 021.
[0036] Beneficial resin morphology formed 031 see Figure 7 , the resin forms a good arc-shaped surface between the honeycomb wall 011 and the panel 02, so that the two can fully contact and bond well.
[0037] Such as Figure 5 , turn the honeycomb 01 and panel 021 upside down, place it on the flexi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a method for improving mechanical properties and weight losing effects of a honeycomb interlayer structure. The method comprises the steps: coating one frame surface, connected with a panel, of a honeycomb with resin; combining the frame coated with the resin and connected with the panel with the first panel; coating another frame surface, connected with the panel, of the honeycomb with resin; combining the frame surface coated with the resin and connected with the panel with a second panel; curing the honeycomb / panel combined part combined with the two panels to obtain the honeycomb interlayer structure. The resin is coated at the frame surfaces that the honeycomb is connected with the panels, then the honeycomb and the panels coated with the resin are combined and cured, the adhering property of the honeycomb and the panels is good due to the resin, and resin use level is reduced, thus greatly improving the mechanical properties and realizing an excellent weight losing effect of the honeycomb interlayer structure.
Description
technical field [0001] The invention relates to a method for improving the mechanical performance and weight reduction effect of a honeycomb sandwich structure, which belongs to the field of composite material forming. Background technique [0002] The honeycomb sandwich structure has high weight reduction efficiency, and has been widely used in various aircraft structural parts in the aviation field; in the aerospace field, a variety of structural materials using sandwich structures can achieve good weight reduction effects; other civil or industrial fields , The sandwich structure can be used as a sound insulation device, a fireproof partition, a train weight-reducing floor, etc. [0003] The manufacturing technology of honeycomb sandwich structure is divided into wet method and dry method. [0004] (1) Dry molding: Secondary curing is used to cure the panel first, then spread a layer of adhesive film or directly apply glue on the panel, heat and press the honeycomb on th...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B32B3/12B32B3/20B32B27/00B32B7/12B32B37/02B32B37/06B32B37/10B32B37/12
CPCB32B3/12B32B3/20B32B7/12B32B27/00B32B37/02B32B37/06B32B37/10B32B37/1284
Inventor 方宜武陈志平
Owner HENGSHEN