KR-20260067473-A - Method of manufacturing a non-electrode lamp light fixture case

Abstract

The present invention manufactures an electrodeless lamp fishing fixture case by laminating a first prepreg sheet, a reinforcing frame, and a second prepreg sheet in a lower mold, then applying pressure with an upper mold and thermoforming. Here, the first prepreg sheet and the second prepreg sheet are made of glass fiber_SMC (Sheet Molding Compound) in which glass fibers are impregnated with a resin composition containing vinyl ester resin. By applying a glass fiber_SMC composed of high-strength glass fibers and a vinyl ester resin that is resistant to salt due to its chemical resistance and weather resistance, it is possible to prevent the fishing fixture case, to which the electrodeless lamp is fixed, from corroding due to salt and to improve the strength of the fishing fixture case.

Inventors

• 송준혁
• 오제하

Assignees

• 재단법인 한국탄소산업진흥원

Dates

Publication Date

20260513

Application Date

20241105

Claims (5)

1. A first step of placing a first prepreg sheet made of glass fiber_SMC (Sheet Molding Compound) in the cavity of a lower mold; A second step of seating a reinforcing frame on the upper portion of the first prepreg sheet placed in the cavity of the lower mold; A third step of laminating a second prepreg sheet made of glass fiber_SMC onto the upper part of the reinforcing frame; A fourth step of joining the upper mold to the lower mold so that a protrusion formed on the lower part of the upper mold presses the second prepreg sheet in the direction of the first prepreg sheet; A fifth step of forming the first prepreg sheet and the second prepreg sheet by applying heat so that the second prepreg sheet is bonded to the first prepreg sheet while wrapping the reinforcing frame; and It includes a sixth step of demolding the upper mold from the lower mold, and A method for manufacturing a case for an electrodeless lamp fishing fixture, characterized in that the above glass fiber_SMC is glass fiber impregnated with a resin composition containing vinyl ester resin.
2. In claim 1, the glass fiber_SMC is, A lamination step for forming a laminate in which a resin layer made of the above resin composition, a first glass fiber layer made of fabric-shaped glass fibers, the resin layer, a second glass fiber layer made of chopped-shaped glass fibers, the resin layer, the second glass fiber layer, the resin layer, the first glass fiber layer, and the resin layer are laminated in order; and A method for manufacturing a case for an electrodeless lamp fishing light fixture, characterized by an impregnation step in which the laminate is thermoformed and compressed so that the resin composition of each resin layer is impregnated into each glass fiber layer.
3. A first step of placing a first prepreg sheet made of carbon fiber_glass fiber_hybrid_SMC in the cavity of a lower mold; A second step of seating a reinforcing frame on the upper portion of the first prepreg sheet placed in the cavity of the lower mold; A third step of laminating a second prepreg sheet made of carbon fiber_glass fiber_hybrid_SMC on top of the reinforcing frame; A fourth step of joining the upper mold to the lower mold so that a protrusion formed on the lower part of the upper mold presses the second prepreg sheet in the direction of the first prepreg sheet; A fifth step of forming the first prepreg sheet and the second prepreg sheet by applying heat so that the second prepreg sheet is bonded to the first prepreg sheet while wrapping the reinforcing frame; and It includes a sixth step of demolding the upper mold from the lower mold, and A method for manufacturing a case for an electrodeless lamp fishing fixture, characterized in that the carbon fiber_glass fiber_hybrid_SMC above is formed by impregnating carbon fibers and glass fibers with a resin composition containing vinyl ester resin.
4. In paragraph 3, the carbon fiber_glass fiber_hybrid_SMC is, A lamination step for forming a laminate in which a resin layer made of the above resin composition, a first glass fiber layer made of fabric-shaped glass fibers, the resin layer, a second glass fiber layer made of chop-shaped glass fibers, the resin layer, a carbon fiber layer made of unidirectional carbon fibers, the resin layer, the second glass fiber layer, the resin layer, the first glass fiber layer, and the resin layer are laminated in order; and A method for manufacturing a case for an electrodeless lamp fishing fixture, characterized by an impregnation step in which the laminate is thermoformed and compressed so that the resin composition of each resin layer is impregnated into each glass fiber layer and the carbon fiber layer.
5. In paragraph 2 or 4, The above resin composition includes additives, A method for manufacturing a case for an electrodeless lamp fishing fixture, comprising a curing agent, a release agent, a filler, a thickener, and a UV absorber as the above additives.

Description

Method of manufacturing a non-electrode lamp light fixture case The present invention relates to a method for manufacturing a case for an electrodeless lamp fishing light fixture. Currently, metal halide lamps are mainly used as fishing lights for jigging vessels for squid and cutlassfish. Recently, a mercury-free metal halide lamp that does not contain mercury and can be used as various light sources was proposed in Korean Patent Publication No. 10-2001-0024584. Since fishing lights basically require high light output, metal halide lamps proposed in the aforementioned Korean Patent Publication No. 10-2001-0024584 are used, and in particular, due to the high temperature of high-output metal halide lamps, metal heat sinks are applied to ensure light distribution control and heat dissipation performance. However, metal heat sinks applied to fishing lights to ensure heat dissipation performance are not only vulnerable to corrosion caused by saltwater but also lead to an increase in the weight and volume of the fishing light, which poses a problem that contributes to increased costs. In addition, when manufacturing fishing lights using composite materials to address corrosion resistance and lightweighting issues in saltwater environments, a reinforcing frame is required on the bottom plate to strengthen properties such as torsional external forces of the light case; however, the process of manufacturing this using composite materials requires upper and lower molds, which complicates the manufacturing process for the reinforcing frame and leads to increased production costs. FIG. 1 is a flowchart showing a method for manufacturing a case for an electrodeless lamp fishing light fixture according to the first embodiment of the present invention. FIG. 2 is a cross-sectional view schematically showing the state in which a first prepreg sheet is received in the cavity of a lower mold. Figure 3 is a diagram showing a method for manufacturing glass fiber_SMC. FIG. 4 is a cross-sectional view schematically showing the state in which a reinforcing frame is seated on the upper part of the first prepreg sheet. FIG. 5 is a perspective view schematically showing a reinforcing frame. FIG. 6 is a cross-sectional view schematically showing the state in which a second prepreg sheet is laminated on the upper part of a reinforcing frame. Figures 7 and 8 are cross-sectional views schematically illustrating the process of joining the upper mold with the lower mold. FIG. 9 is a cross-sectional view schematically showing the state in which the upper mold is demolded from the lower mold. FIG. 10 is a cross-sectional view schematically showing the state in which the case of the electrodeless lamp fishing fixture, manufactured from the cavity of the lower mold, is separated. FIG. 11 is an exploded perspective view schematically showing the state in which the reflector and the electrodeless lamp are separated from the fishing light fixture case. Fig. 12 is a combined perspective view of Fig. 11. FIG. 13 is a flowchart showing a method for manufacturing a case for an electrodeless lamp fishing light fixture according to a second embodiment of the present invention. FIG. 14 is a diagram illustrating a method for manufacturing carbon fiber_glass fiber_hybrid_SMC. Hereinafter, a method for manufacturing a case for an electrodeless lamp fishing light fixture according to the first embodiment of the present invention will be described. As illustrated in FIG. 1, the method for manufacturing a case for an electrodeless lamp fishing light fixture according to the first embodiment of the present invention is, A first step (S11) of placing a first prepreg sheet made of glass fiber_SMC in the cavity of the lower mold; A second step (S12) of placing a reinforcing frame on top of the first prepreg sheet placed in the cavity of the lower mold; A third step (S13) of laminating a second prepreg sheet made of glass fiber_SMC on top of the reinforcing frame; A fourth step (S14) of joining the upper mold to the lower mold so that a protrusion formed on the lower part of the upper mold presses the second prepreg sheet in the direction of the first prepreg sheet; Step 5 (S15) of forming the first prepreg sheet and the second prepreg sheet by applying heat so that the second prepreg sheet is bonded to the first prepreg sheet while wrapping the reinforcing frame; and It consists of a sixth step (S16) of demolding the upper mold from the lower mold. The first step (S11) is described below. As shown in FIG. 2, a first prepreg sheet (110) is placed in the cavity (101) of the lower mold (10) in a shape corresponding to the cavity (101). The first prepreg sheet (110) is made of glass fiber_SMC (Sheet Molding Compound). Glass fiber_SMC is a composite material in the form of a sheet in which glass fibers are impregnated with resin as reinforcing fibers. In the present invention, glass fiber_SMC is used in which a resin composition containing vinyl ester resin is impreg