Method for adopting glass fiber fabric as fiber reinforced plastic cable duct winding liner protection
A glass fiber cloth and cable duct technology is applied in the field of using glass fiber cloth as lining protection for winding fiberglass reinforced plastic cable ducts. Decreased structural performance, enhanced smoothness, and improved compressive effects
Inactive Publication Date: 2013-05-01
XINSHIJI POWER MATERIAL HANGZHOU +1
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Problems solved by technology
[0003] (2) In the past, due to the fact that the raw materials used in the lining combination process are completely different from those used in the main pipeline, equipment and technology need to be improved during the production process, which has brought difficulties to product production, testing (no current standard) and installation to a certain extent. Inconvenient; in addition, the combination of different materials will be more complicated in formula and process, which will easily increase the cost or affect the overall performance of the tube body, reducing the competitive advantage of the tube;
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
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[0017] First of all, before processing the glass fiber cloth to wind and prepare the inner lining, the pipe mold must be loaded into the drying room for preheating, and the temperature of the drying room is controlled at 60 O C, when the tube mold temperature reaches 35 O After C or above, the upper machine wipes off the mold oil on the surface of the pipe mold, and then winds and adds a film to the pipe mold, wrapping a layer of PET high-temperature film with high-temperature resistance and high-gloss surface (picture 2 above), and its thickness should be suitable for winding and Release requirements (film thickness: 2.5um, surface finish: ≥▽4, temperature resistance: ≥280°C). The second step is to mix the glass fiber cloth with the unsaturated polyester resin (viscosity: (0.18~0.25) , acid value: (18~34) mgKOH / g, gel time: (30~60) min; catalyst: 0.1%~0.8%, curing agent: 0.1%~1.0%) after complete infiltration and upper mold, when upper mold , the thickness of the inner li...
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Abstract
The invention provides a method for adopting a glass fiber fabric as fiber reinforced plastic cable duct winding liner protection, and relates to a fiber reinforced plastic cable protection tube winding liner material and a manufacturing process thereof. The material is characterized in that a glass fiber fabric is adopted as a liner material, is completely immersed in a diluted resin having a scientific formula, and then is subjected to adding-to-mold, winding, steam heating, demolding, natural cooling and other processes, such that the liner and the wound fiber reinforced plastic cable protection tube are tightly combined and molded in one time so as to completely solve insufficient axial strength, overall duct performance reduction or complete delamination due to inner wall scoring during a cable threading construction process, and other phenomena of the existing fiber reinforced plastic cable protection tube winding. Figure description: 1, a steel tube mold, 2, a PET high temperature film, 3, glass fiber fabric winding to prepare a liner, 4, spiral winding, 5, a sand layer, 6, a glass fiber winding layer, and 7, circular winding.
Description
technical field [0001] The patent of the invention relates to the inner lining material and preparation technology of the protective tube of the fiberglass reinforced plastic cable. Background technique [0002] (1) FRP cable conduits made by previous winding processes often do not use inner linings or use plastic overmolding and modified polypropylene to make inner linings. For example, in the invention patent CN102361280A, modified polypropylene is used as inner lining material, resulting in two inner and outer linings. Tubes of different materials; [0003] (2) In the past, due to the fact that the raw materials used in the lining combination process are completely different from those used in the main pipeline, equipment and technology need to be improved during the production process, which has brought difficulties to product production, testing (no current standard) and installation to a certain extent. Inconvenient; in addition, the combination of different materials...
Claims
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IPC IPC(8): B29C63/30
Inventor 张宇明冯武徐文龙张晓冬
Owner XINSHIJI POWER MATERIAL HANGZHOU