Technique for manufacturing pneumatic wing plate for bridge
A manufacturing technology, a technology for bridges, applied in the direction of bridges, bridge parts, bridge materials, etc., can solve problems such as deformation of the skin of the wing plate, and achieve the effect of reducing production costs and improving manufacturing efficiency.
Inactive Publication Date: 2010-07-07
SICHUAN DEYANG CHEM
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In view of the above shortcomings of the existing molding technology, the purpose of this invention is to develop a bridge aerodynamic wing plate manufacturing technology to make it have good mechanical properties and weather resistance, to solve the problem of serious deformation of the wing plate skin by using ordinary methods, and to ensure Under the condition that the wing plate has sufficient strength, the manufacturing efficiency is improved and the production cost is reduced
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 1
[0013] Polyphenylene sulfide resin is sodium sulfide (Na 2 S·5H 2 O), p-dichlorobenzene (P-DCS) reacted in N-methylpyrrolidone (NMP), 51 parts by weight of PPS resin after washing and drying, cross-linking treatment at 220-250°C for 2-4h, to melt the resin The bulk flow rate (the test temperature is 315°C, the nominal load is 5kg, and the inner diameter of the standard die is 2.095mm) is 200-400g / 10min; random ethylene-acrylate-glycidyl methacrylate terpolymer (France Atofina company AX8900) 4 parts by weight, random ethylene-glycidyl methacrylate binary copolymer 3 parts by weight (French Atofina company 29MA03); Glass fiber 40 parts by weight (Shandong Taishan Glass Fiber Factory ERS2000 -T635B, fiber diameter 11-13μ); the black mother is Cabot UN20142 parts by weight; the extruder is Sichuan Guanghan SLJ-35B co-rotating twin-screw extruder; after dry mixing, use the co-rotating twin-screw extruder to add glass Fiber 35-40, temperature 300-330 ℃, screw speed 350rpm mixed e...
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
| Property | Measurement | Unit |
|---|---|---|
| melting point | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a technique for manufacturing a pneumatic wing plate for a bridge. A pneumatic wing plate envelope for the bridge consists of a polyphenylene sulfide ether resin composite material which mainly comprises the following main components in percentage by weight: 50 to 55 percent of polyphenylene sulfide ether resin, 3 to 5 percent of random ethylene-acrylic ester-glycidyl methacrylate terpolymer, 2 to 5 percent of random ethylene-glycidyl methacrylate dipolymer, 35 to 40 percent of glass fiber, 50 to 55 percent of polyphenylene sulfide ether resin, 3 to 5 percent of random ethylene-acrylic ester-glycidyl methacrylate terpolymer and 2 to 5 percent of random ethylene-glycidyl methacrylate dipolymer. After the components are mixed in a dry state, the injection molding of the envelope is completed by using a homodromous double-screw multi-gating hot-runner mold. The technique solves the deformation problem of the wing plate envelope well, improves the manufacturing efficiency and lowers the production cost on the premise of ensuring that the wing plate has enough intensity.
Description
technical field [0001] The invention belongs to the engineering macromolecule composite material, in particular to the field of engineering structural composite material manufacturing for bridge aerodynamic wing plates. Background technique [0002] Due to technological progress and the needs of modern transportation, the construction of more and more long-span bridges has become an inevitable trend. The lengthening of bridge spans greatly enhances the sensitivity of structures to wind, and avoids divergent flutter movements of structures. It has become a problem that must be paid attention to in the design process of long-span bridges. Aerodynamic flaps play a very important role in the solution of bridge structure flutter and buffeting. In the past, aluminum alloy was used as the skin of the wing plate. The aluminum alloy material has good formability and high strength, but the electrode potential of aluminum is very negative. Therefore, when aluminum contacts with dissimi...
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 Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08K7/14B29C45/00E01D19/00E01D101/40
Inventor 张勇戴厚益苟梁武胡良冉文卿吴勇
Owner SICHUAN DEYANG CHEM