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KR-102964676-B1 - Method for Manufacturing a Submarine Radome Using Dissimilar Materials

KR102964676B1KR 102964676 B1KR102964676 B1KR 102964676B1KR-102964676-B1

Abstract

The present invention relates to a method for manufacturing a submarine radome having different materials. The method for manufacturing a submarine radome having different materials according to the present invention comprises: a radome cap preparation step of preparing a dome-shaped radome cap made of FRP material, having a cap groove on its inner surface and an open interior; a first insert installation step of installing a first insert made of metal in an arc shape into the cap groove of the radome cap prepared in the radome cap preparation step; a second insert installation step of installing a second insert made of metal in an arc shape so as to be connected to the first insert installed in the first insert installation step; a third insert installation step of installing a third insert made of metal in an arc shape so as to be connected at one end to the second insert installed in the second insert installation step and at the other end to the first insert; and a sealing step of applying a seal to the inner surface of the radome cap to surround the first, second, and third inserts installed in the third insert installation step, thereby becoming one with the FRP radome cap as an integral unit. and a re-sealing step of reapplying to the sealed portion one or more times after the sealing step; is included. The present invention provides a method for manufacturing a submarine radome having different materials, wherein an insert ring formed into three sections is secondarily molded integrally into the radome cap, thereby preventing internal damage to the radome cap and ensuring that the radome cap and the body are firmly sealed against each other, as well as having excellent airtightness, and due to the FRP material cap, the ability to capture reflected waves is excellent and the effective range is increased.

Inventors

  • 조정연
  • 류길상
  • 진병욱

Assignees

  • 주식회사 케이앤에스아이앤씨

Dates

Publication Date
20260513
Application Date
20251016

Claims (6)

  1. A radome cap preparation step (S10) of preparing a dome-shaped radome cap (1) made of FRP material, having a cap groove (1a) on its inner surface and an open interior; A first insert (10) installation step (S20) in which a first insert in the shape of an arc made of metal is fitted and installed into the cap groove (1a) of the radome cap (1) prepared in the above radome cap preparation step (S10); A second insert installation step (S30) in which a second insert (20) in the shape of a curve made of metal is fitted and installed to be connected to the first insert (10) installed in the first insert installation step (S20); A third insert installation step (S40) in which a third insert (30) made of metal material in the shape of an arc is installed such that one end is connected to the second insert (20) installed in the second insert installation step (S30) above and the other end is connected to the first insert (10); A sealing step (S50) in which the first, second, and third inserts (10, 20, 30) installed in the third insert installation step (S40) are applied to the inner surface of the radome cap (1) to surround the inserts, thereby becoming one with the FRP radome cap (1); and After the sealing step (S50) above, the method is configured to include a re-sealing step (S60) of reapplying at least once to the sealed sealing part (40). The first insert (10) is characterized by having a square box shape with an arc shape, with one end forming a half-lap portion (11) and the other end forming a protrusion portion (13). The above second insert (20) is characterized by having a square box shape with an arc shape, with one end forming a half-lap portion (21) and the other end forming a protrusion portion (23). The third insert (30) is characterized by having a square box shape with an arc shape and forming grooves (33) at both ends on the left and right sides corresponding to the protrusions (13, 23) of the first and second inserts (10, 20). The above third insert (30) is characterized by having a length ratio of 1:1.133 compared to the first and second inserts (10, 20), and The first, second, and third inserts (10, 20, 30) are characterized by the fact that the half-jaw portion (11, 21), protrusion portion (13, 23), and groove portion (33) that meet each other are formed vertically from top to bottom. The above first, second, and third inserts (10, 20, 30) are characterized by having one or more through holes (35) formed at the top and bottom. A method for manufacturing a submarine radome, characterized in that the bottom edges of the first, second, and third inserts (10, 20, 30) form a tapered portion (38) at an angle.
  2. In claim 1, a radome manufactured by the above manufacturing method.
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Description

Method for Manufacturing a Submarine Radome Using Dissimilar Materials The present invention relates to a method for manufacturing a submarine radome having different materials, and more specifically, to a method for manufacturing a submarine radome having different materials in which an insert ring formed by three divisions is secondarily molded integrally into the radome cap, thereby preventing internal damage to the radome cap and ensuring that the radome cap and the body are firmly sealed against each other, as well as having excellent airtightness, and having excellent capture capability of reflected waves and increased effective range due to the FRP material cap. Generally, a radome is a compound word of radar and dome. Radar is a device that detects aircraft, obstacles, or other targets by fixing or rotating (called scanning) an antenna with a parabolic shape and emitting and capturing high-frequency directional radio waves into space. These radomes consist of a cap, a cap bracket, and a body to protect against external environmental factors such as weather conditions like wind, rain, salt, and humidity, as well as physical impact. Since they are typically made entirely of plastic, extensive research has been conducted to enhance their durability, airtightness, and sealing capabilities. For example, Korean Registered Patent Publication No. 10-1334670 discloses a radome comprising: a base that supports a tracking antenna on a bottom surface and has a plurality of support ledges formed along the inner circumference of an upper opening, wherein the support ledges have through holes formed therein so that they can be screwed from the bottom to the top; a dome that has an opening at the bottom to cover the tracking antenna; a lower coupler that is screw-coupled to the inner circumference of the base while resting on the support ledges of the base and has either a fitting projection or a fitting groove formed on its upper surface; and an upper coupler that is screw-coupled to the inner circumference of the opening of the dome, has a plurality of seating bosses formed on its lower surface having screw holes so as to be placed on the support ledges and coupled with the support ledges, and has either a fitting groove or a fitting projection formed to correspond to the fitting projection of the lower coupler. However, the above technology has a problem in that its components are made of the same material, resulting in poor durability and airtightness, making it unsuitable for use in submarines requiring high underwater pressure. FIG. 1 is a system diagram of a method for manufacturing a submarine radome having different materials according to the present invention. FIG. 2 is a cross-sectional view of a submarine radome having different materials according to the present invention. FIG. 3 is a plan view of the first, second, and third inserts of a submarine radome having different materials according to the present invention. FIG. 4 is an exploded view of the first, second, and third inserts of a submarine radome having different materials according to the present invention. FIG. 5 is a bottom view of the first, second, and third inserts of a submarine radome having different materials according to the present invention. The method for manufacturing a submarine radome with different materials according to the present invention is configured such that an insert ring formed into three sections is secondarily molded integrally into the radome cap, thereby preventing internal damage to the radome cap and ensuring that the radome cap and the body are firmly sealed against each other, as well as having excellent airtightness, and that the FRP material cap provides excellent capture capability of reflected waves and an increased effective range. In this application, terms such as "comprising" or "consisting of" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not excluding in advance the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which this invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a system diagram of a method for manufacturing a submarine radome having different materials according to the present invention, FIG. 2 is a cross-sectional view of a