KR20180105793A - Armor plate applied by bainite treatment and the manufacturing method of the same - Google Patents

Armor plate applied by bainite treatment and the manufacturing method of the same Download PDF

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KR20180105793A
KR20180105793A KR1020170032936A KR20170032936A KR20180105793A KR 20180105793 A KR20180105793 A KR 20180105793A KR 1020170032936 A KR1020170032936 A KR 1020170032936A KR 20170032936 A KR20170032936 A KR 20170032936A KR 20180105793 A KR20180105793 A KR 20180105793A
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bulletproof
bainite
steel
temperature
panel
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KR1020170032936A
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Korean (ko)
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KR101938470B1 (en
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배진범
김용권
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배진범
김용권
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00Armour; Armour plates
    • F41H5/02Plate construction
    • F41H5/04Plate construction composed of more than one layer
    • F41H5/0442Layered armour containing metal
    • F41H5/0457Metal layers in combination with additional layers made of fibres, fabrics or plastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024Woven fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B32B5/262Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a woven fabric layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • C21D1/25Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00Armour; Armour plates
    • F41H5/02Plate construction
    • F41H5/023Armour plate, or auxiliary armour plate mounted at a distance of the main armour plate, having cavities at its outer impact surface, or holes, for deflecting the projectile
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0261Polyamide fibres
    • B32B2262/0269Aromatic polyamide fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2571/00Protective equipment
    • B32B2571/02Protective equipment defensive, e.g. armour plates, anti-ballistic clothing
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/002Bainite

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Laminated Bodies (AREA)

Abstract

Disclosed are bainite-treated armor plate and armor jacket and manufacturing method thereof. According to the present invention, a manufacturing method of an armor panel comprises a bainite step of heating an alloy steel containing carbon of 0.2 to 2 % at an austenite temperature, maintaining for several tens of minutes to several hours, and generating a bainite tissue by performing temperature-resistant cooling with respect to a hot bath at a temperature higher than a martensite start temperature. Accordingly, toughness can be increased to increase armor performance.

Description

베이나이트 처리가 적용된 방탄판, 및 방탄복, 그리고 그 제작방법{Armor plate applied by bainite treatment and the manufacturing method of the same}[0001] The present invention relates to a bombardment-treated ballast, and a bombardment-applied armor plate,

본 발명은 베이나이트 처리가 적용된 방탄판, 및 방탄복, 그리고 그 제작방법에 관한 것으로서, 더욱 상세하게는 합금강을 오스테나이트 온도로 가열하여 수십분에서 수시간 동 안 유지한 후, 마르텐사이트 개시온도 보다 높은 온도에서 열욕에 항온 냉각하여 미세한 베이나이트 조직이 형성되도록 하여, 인성을 높임으로써 방탄 성능을 향상시키는 것을 특징으로 하는 베이나이트 처리가 적용된 방탄판, 및 방탄복, 그리고 그 제작방법에 관한 것이다.More particularly, the present invention relates to a bulletproof plate, a bodyshell garment, and a method of manufacturing the bulletproof plate, and more particularly, to a method of manufacturing a bulletproof plate, The present invention relates to a bulletproof plate, a bodyshell, and a method of manufacturing the same, which are characterized in that the bulletproof performance is improved by increasing the toughness by forming a fine bainite structure by cooling at a constant temperature in a hot bath.

일반적으로, 방탄판은 총탄으로부터 신체를 보호하기 위해 사용되는 보호용 구조물로서, 방탄복에 삽입되어 사용되기도 하고 전투용 차량 또는 항공기에 적용되기도 한다.In general, a ballistic protection is a protective structure used to protect the body from bullets, which may be inserted into a body armor or applied to a combat vehicle or aircraft.

종래의 방탄판은 세라믹 패널의 둘레를 방탄용 직물로 감싸는 형태로 제작된다. 이러한 세라믹 패널로 제작된 방탄판은 총탄 또는 발사체가 표면에 충돌될 때 여러 조각으로 파손되면서 충격에너지를 흡수한다.A conventional bulletproof panel is manufactured by wrapping the periphery of a ceramic panel with a bulletproof fabric. A bulletproof panel made of such a ceramic panel absorbs impact energy as it is broken into several pieces when a bullet or projectile hits the surface.

그러나 이러한 세라믹 패널은 그 무게가 무겁고 부피가 커서 활동성이 요구되는 전투상황에서 전투력을 저하시키는 요인으로 작용하고 있다.However, such a ceramic panel is heavy and bulky, and acts as a factor in reducing combat power in situations where activity is required.

이뿐 아니라 세라믹 재질은 그 특성상 경도는 높으나 취성이 있어, 다수의 총탄이 충돌될 때 안정적인 방탄성능을 보장할 수 없는 점이 문제점으로 지적되어 왔다.In addition, since ceramic materials have high hardness and brittleness due to their characteristics, it has been pointed out that a stable bulletproof performance can not be guaranteed when a large number of bullets collide with each other.

따라서 무게가 가볍고 부피를 줄여 활동성을 높이면서도, 안정적인 방탄성능을 보장하는 개선된 방탄판의 개발이 절실히 요청된다.Therefore, it is urgently required to develop an improved bulletproof plate which is light in weight and reduced in volume to increase the activity, and to ensure a stable bulletproof performance.

한국등록특허공보 10-1615176호Korean Patent Registration No. 10-1615176

본 발명은 상기와 같은 문제를 해결하고자 제안된 것으로서, 무게가 가볍고 부피를 줄여 전투상황에서 활동성을 높이는 방탄판을 제공하는 것을 목적으로 한다.Disclosure of Invention Technical Problem [8] The present invention has been made to solve the above problems, and it is an object of the present invention to provide a ballistic board which is light in weight and reduced in volume to enhance activity in a battle situation.

또한 본 발명은 다수의 총탄이 충돌하는 경우에도 안정적인 방탄성능을 보이는 방탄판을 제공하는 것을 목적으로 한다.It is another object of the present invention to provide a bulletproof panel having a stable bulletproof performance even when a large number of bullets collide with each other.

또한 본 발명은 방탄판 제작에 사용되는 경제적인 재질을 선택하고, 최적의 열처리를 통해 제작 비용을 최소화하는 것을 목적으로 한다.It is another object of the present invention to select an economical material to be used in the production of a bulletin board and to minimize the production cost through an optimal heat treatment.

본 발명은 총탄으로부터 신체를 보호하기 위해 사용되는 방탄 패널을 제작하는 방법에 있어서, 0.2 % 내지 2 % 탄소가 함유된 합금강을 오스테나이트 온도로 가열하여 수십분 내지 수시간 동안 유지한 후, 마르텐사이트 개시온도 보다 높은 온도에서 열욕에 항온 냉각하여 베이나이트 조직을 생성하는 베이나이트 단계;를 포함하며, 상기 베이나이트 단계를 통해 인성을 높여 방탄 성능을 향상시키는 것을 특징으로 한다. A method for manufacturing a bulletproof panel for use in protecting a bullet from a bullet, the method comprising: heating an alloy steel containing 0.2% to 2% carbon to austenite temperature for several tens of minutes to several hours, And a bainite step of cooling the hot bath at a temperature higher than the temperature to produce a bainite structure, wherein the bainite step increases the toughness to improve the bulletproof performance.

또한 본 발명의 베이나이트 단계는, 상기 열욕 온도가 마르텐사이트 개시온도 보다 높은 200℃ 내지 500℃로 상부 베이나이트와 하부 베이나이트 구역에서 수십분 유지 후 공기 중에서 냉각하는 것을 특징으로 한다.Further, the bainite step of the present invention is characterized in that the hot bath temperature is maintained at a temperature of 200 to 500 占 폚 higher than the martensite start temperature for several tens of minutes in the upper bainite and lower bainite zones, followed by cooling in air.

또한 본 발명의 상기 베이나이트 단계를 수행하는 도중에 침탄 또는 침탄질화 처리를 수행하여 표면 경도를 높이는 것을 특징으로 한다.Further, carburizing or carbo-nitriding treatment is performed during the bainite step of the present invention to enhance the surface hardness.

또한 본 발명의 합금강은 탄소강, 탄소공구강, 스프링강, 베어링강, SCM강, SNCM강, 보론첨가강 등 탄소량이 0.2~2.0& 함유한 것을 특징으로 한다.Further, the alloy steel of the present invention is characterized by containing 0.2 to 2.0 carbon atoms, such as carbon steel, carbon tool steel, spring steel, bearing steel, SCM steel, SNCM steel and boron added steel.

또한 본 발명은 방탄 패널의 전면에 보호코팅층을 형성하여, 방탄 패널에 충돌된 총탄의 피탄 방향을 착용자로부터 분산되게 하는 보호코팅층 형성단계;를 더 포함하며, 상기 보호코팅층의 소재는 폴리에틸렌, 폴리에틸렌-비닐아세테이트, 폴리우레탄, 폴리프로필렌, 폴리에스테르, 폴리아미드, 열가소성 폴리우레탄, 폴리올레핀, 박막형 페놀, 박막형 에폭시, 에나멜 페인트 중에서 선택되는 것을 특징으로 한다.The method may further include forming a protective coating layer on the entire surface of the bulletproof panel to disperse the bullet direction of the bullet hit on the bulletproof panel from the wearer, wherein the material of the protective coating layer is polyethylene, Vinyl acetate, polyurethane, polypropylene, polyester, polyamide, thermoplastic polyurethane, polyolefin, thin film phenol, thin film epoxy, and enamel paint.

또한 본 발명은 상기 어느 하나의 제작방법으로 제작된 방탄 패널을 제공한다.The present invention also provides a bulletproof panel manufactured by any one of the above-described manufacturing methods.

또한 본 발명은 상기 방탄 패널을 둘러싸는 방탄 직물층;을 포함하는, 방탄판을 제공한다.The present invention also provides a ballistic protection panel comprising a bulletproof fabric layer surrounding the bulletproof panel.

또한 본 발명의 방탄 직물층은 아라미드 소재로 형성된 복수의 층이 상기 방탄 패널의 상부와 하부에 적층되는 것을 특징으로 한다.In addition, the armor fabric layer of the present invention is characterized in that a plurality of layers formed of an aramid material are laminated on top and bottom of the bulletproof panel.

또한 본 발명의 방탄 직물층 사이에는 접착성 폴리머 필름을 삽입하여 적층한 후 열 프레스를 이용하여 온도 80~150 및 압력 20~80bar에서열 압착시켜 용융된 폴리머가 상기 방탄 직물층의 섬유 사이에 스며들어 고형물을 형성하는 것을 특징으로 한다.In addition, an adhesive polymer film is inserted between the armor layers of the present invention and laminated. The laminated polymer is thermocompressed at a temperature of 80 to 150 and a pressure of 20 to 80 bar using a hot press so that the molten polymer permeates between the fibers of the armor- To form a solid.

또한 본 발명은 상기 방탄판이 삽입된 방탄복을 제공한다.Further, the present invention provides a headrest with the bulletproof plate inserted therein.

본 발명에 따른 방탄판은 무게가 가볍고 부피가 작아 전투상황에서 활동성을 높이는 효과가 있다.The bulletproof plate according to the present invention is light in weight and small in volume, and thus has an effect of enhancing activity in a battle situation.

또한 본 발명에 따른 방탄판은 다수의 총탄이 충돌하는 경우에도 안정적인 방탄성능을 보이는 효과가 있다.Further, the bulletproof plate according to the present invention has an effect of exhibiting a stable bulletproof performance even when a large number of bullets collide with each other.

또한 본 발명에 따른 방탄판은 모재로 경제적인 재질을 선택하고, 최적의 열처리를 통해 제작 비용을 최소화하는 효과가 있다. Further, the bulletproof plate according to the present invention has an effect of selecting an economical material as a base material and minimizing a manufacturing cost through an optimal heat treatment.

상술한 효과와 더불어 본 발명의 구체적인 효과는 이하 발명을 실시하기 위한 구체적인 사항을 설명하면서 함께 기술한다.The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

도 1은 본 발명에 따른 방탄판의 사시도이다.
도 2는 본 발명에 따른 방탄판의 단면도이다.
도 3은 본 발명에 따른 방탄 패널의 열처리 공정도이다.
도 4는 4150강의 베이나이트 처리된 경우와 담금질 및 템퍼링 처리된 경우의 물성을 비교한 도면이다.
도 5는 6150강의 베이나이트 처리된 경우와 담금질 및 템퍼링 처리된 경우의 경도와 연신율의 관계를 도시한 도면이다.
도 6은 6150강의 베이나이트 처리된 경우와 담금질 및 템퍼링 처리된 경우의 경도와 충격에너지의 관계를 도시한 도면이다.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a ballistic protection box according to the present invention; FIG.
2 is a cross-sectional view of the bulletproof panel according to the present invention.
3 is a view showing a heat treatment process of the bulletproof panel according to the present invention.
4 is a graph comparing the properties of the case of 4150 steel with bainite and the properties of quenching and tempering.
5 is a graph showing the relationship between the hardness and the elongation in the case of bainite treatment of 6150 steel and in the case of quenching and tempering treatment.
6 is a graph showing the relationship between hardness and impact energy in the case of bainite treatment of 6150 steel and in case of quenching and tempering treatment.

이하, 본 문서의 다양한 실시예가 첨부된 도면을 참조하여 기재된다. 그러나 이는 본 문서에 기재된 기술을 특정한 실시 형태에 대해 한정하려는 것이 아니며, 본 문서의 실시예의 다양한 변경(modifications), 균등물(equivalents), 및/또는 대체물(alternatives)을 포함하는 것으로 이해되어야 한다. 도면의 설명과 관련하여, 유사한 구성요소에 대해서는 유사한 참조 부호가 사용될 수 있다.Hereinafter, various embodiments of the present document will be described with reference to the accompanying drawings. It should be understood, however, that the techniques described herein are not intended to be limited to any particular embodiment, but rather include various modifications, equivalents, and / or alternatives of the embodiments of this document. In connection with the description of the drawings, like reference numerals may be used for similar components.

또한, 본 문서에서 사용된 "제1," "제2," 등의 표현들은 다양한 구성요소들을, 순서 및/또는 중요도에 상관없이 수식할 수 있고, 한 구성요소를 다른 구성요소와 구분하기 위해 사용될 뿐 해당 구성요소들을 한정하지 않는다. 예를 들면, '제1 부분'과 '제2 부분'은 순서 또는 중요도와 무관하게, 서로 다른 부분을 나타낼 수 있다. 예를 들면, 본 문서에 기재된 권리 범위를 벗어나지 않으면서 제1 구성요소는 제2 구성요소로 명명될 수 있고, 유사하게 제2 구성요소도 제1 구성요소로 바꾸어 명명될 수 있다.Also, the terms "first," "second," and the like used in the present document can be used to denote various components in any order and / or importance, and to distinguish one component from another But is not limited to those components. For example, 'first part' and 'second part' may represent different parts, regardless of order or importance. For example, without departing from the scope of the rights described in this document, the first component can be named as the second component, and similarly the second component can also be named as the first component.

또한, 본 문서에서 사용된 용어들은 단지 특정한 실시예를 설명하기 위해 사용된 것으로, 다른 실시예의 범위를 한정하려는 의도가 아닐 수 있다. 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함할 수 있다. 기술적이거나 과학적인 용어를 포함해서 여기서 사용되는 용어들은 본 문서에 기재된 기술 분야에서 통상의 지식을 가진 자에 의해 일반적으로 이해되는 것과 동일한 의미를 가질 수 있다. 본 문서에 사용된 용어들 중 일반적인 사전에 정의된 용어들은, 관련 기술의 문맥상 가지는 의미와 동일 또는 유사한 의미로 해석될 수 있으며, 본 문서에서 명백하게 정의되지 않는 한, 이상적이거나 과도하게 형식적인 의미로 해석되지 않는다. 경우에 따라서, 본 문서에서 정의된 용어일지라도 본 문서의 실시예들을 배제하도록 해석될 수 없다.It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the other embodiments. The singular expressions may include plural expressions unless the context clearly dictates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art. The general predefined terms used in this document may be interpreted in the same or similar sense as the contextual meanings of the related art and, unless expressly defined in this document, include ideally or excessively formal meanings . In some cases, even the terms defined in this document can not be construed as excluding the embodiments of this document.

도 1은 본 발명에 따른 방탄판(30)의 사시도이고, 도 2는 본 발명에 따른 방탄판(30)의 단면도이다.FIG. 1 is a perspective view of a ballast 30 according to the present invention, and FIG. 2 is a sectional view of a ballast 30 according to the present invention.

도 1 및 도 2를 참조하여 설명한다.Will be described with reference to Figs. 1 and 2. Fig.

방탄판(30)은 방탄 패널(10)과 방탄 직물층(20)을 포함한다.The board (30) includes a bulletproof panel (10) and a bulletproof fabric layer (20).

방탄 패널(10)의 형상은 소정의 곡률을 가지는 원호 형상으로 형성된다. 이와 같이 원호 형상으로 형성된 방탄 패널(10)은 사용자 가슴의 전방과 측면을 에워싸게 되어 총탄으로부터 사용자를 방호하게 된다.The shape of the bulletproof panel 10 is formed into an arc shape having a predetermined curvature. The armor-shaped bulletproof panel 10 surrounds the front and side surfaces of the user's chest and protects the user from bullets.

방탄 패널(10)은 단일층으로 형성될 수도 있으나, 복수의 층이 적층되어 형성될 수도 있다.The bulletproof panel 10 may be formed as a single layer, but may be formed by stacking a plurality of layers.

방탄 패널(10)의 후면에는 복수의 방탄 직물층(20)이 형성된다. 방탄 직물층(20) 간의 결합을 위해서는 접착성 폴리머 필름이 사용된다.A plurality of anti-armor fabric layers 20 are formed on the rear surface of the bulletproof panel 10. Adhesive polymer films are used for bonding between the armor fabric layers 20.

방탄 직물층(20) 사이에 접착성 폴리머 필름을 삽입하여 적층한 후, 열 프레스를 이용하여 온도 80~150 및 압력 20~80bar에서 열 압착시켜, 용융된 폴리머가 상기 방탄 직물층의 섬유 사이에 스며들어 고형물을 형성하도록 한다.The adhesive polymer film is laminated between the anticorrosive fabric layers 20 and thermally pressed at a temperature of 80 to 150 and a pressure of 20 to 80 bar using a hot press so that the molten polymer is sandwiched between the fibers of the anti- Seep into and form a solid.

방탄 직물층(20)의 재질은 아라미드로 형성된다.The material of the armor fabric layer 20 is formed of aramid.

이와 같이 방탄 직물층(20)이 적층된 방탄 패널(10)은 방탄복에 삽입된다. 방탄 패널(10)은 방탄복뿐만 아니라 전투용 차량, 경호 차량, 전투용 항공기 등 다양한 구조물에 적용이 가능하다.The bulletproof panel 10 having the bulletproof fabric layer 20 laminated thereon is inserted into the bodyshell. The bulletproof panel 10 can be applied not only to the body armor but also to various structures such as combat vehicles, security vehicles, and combat aircraft.

본 발명에 따른 방탄 패널(10)은 종래 통상적으로 사용되던 세라믹 패널 대신에 가격이 저렴하고 취급이 용이한 탄소강을 사용한다. 이를 통해 경제적인 방탄 패널(10)의 제작이 가능할뿐만 아니라 작업성 또한 향상된다.The bulletproof panel 10 according to the present invention uses carbon steel, which is inexpensive and easy to handle, in place of the conventional ceramic panel. This makes it possible to manufacture the economical bulletproof panel 10 as well as improve workability.

본 발명에 따른 방탄 패널(10)은 0.2 % 내지 2 % 탄소가 함유된 합금강이 사용된다. 방탄 패널(10)의 재질로는 합금강 중 탄소강, 탄소공구강, 스프링강, 베어링강, SCM강, SNCM강, 보론첨가강을 선택함이 바람직하다.The bulletproof panel 10 according to the present invention uses an alloy steel containing 0.2% to 2% carbon. As the material of the bulletproof panel 10, carbon steel, carbon tool steel, spring steel, bearing steel, SCM steel, SNCM steel and boron-added steel are preferably selected among the alloy steels.

합금강은 경도는 높으나 인성이 작아 충분한 방탄 성능을 기대할 수 없다.Alloy steels have high hardness but small toughness and can not be expected to have sufficient bulletproof performance.

따라서 본 발명에서는 합금강 중 탄소강, 탄소공구강, 스프링강, 베어링강, SCM강, SNCM강, 보론첨가강을 모재로 하여 열처리를 통해 방탄 성능을 향상시키고자 한다.Accordingly, in the present invention, it is intended to improve the bulletproof performance by using heat treatment as the base material of carbon steel, carbon tool steel, spring steel, bearing steel, SCM steel, SNCM steel and boron added steel.

도 3은 본 발명에 따른 방탄 패널(10)의 열처리 공정도이다.3 is a view showing a heat treatment process of the bulletproof panel 10 according to the present invention.

도 3을 참조하여 설명한다.Will be described with reference to FIG.

우선 0.2 % 내지 2 % 탄소가 함유된 합금강을 오스테나이트 온도로 가열하여, 마르텐사이트 개시온도 보다 높은 온도에서 열욕에 항온 냉각하여 미세한 베이나이트 조직을 생성하는 베이나이트 단계(100)를 거치도록 한다. 이 때 가열시간은 수십분 내지 수시간 정도가 소요된다.First, an alloy steel containing 0.2% to 2% carbon is heated to austenite temperature, and then subjected to a bainite step (100) in which a fine bainite structure is formed by cooling under constant heat at a temperature higher than the martensite start temperature. In this case, the heating time may be several tens of minutes to several hours.

베이나이트 단계(100)에서 열욕 온도는 마르텐사이트 개시온도 보다 높은 200℃ 내지 500℃로 상부 베이나이트와 하부 베이나이트 구역에서 수십분 유지 후 공기 중에서 냉각한다.In the bainite step (100), the hot bath temperature is maintained at a temperature of 200 ° C to 500 ° C higher than the martensite start temperature for several tens of minutes in the upper bainite and lower bainite zones, followed by cooling in air.

이와 같은 공정을 통해 형성된 베이나이트 조직은 인성이 높아 방탄 성능이 현저히 향상된다.The bainite structure formed through such a process has a high toughness so that the bulletproof performance is remarkably improved.

한편 베이나이트 단계(100)를 수행하는 도중에 침탄 또는 침탄질화 처리를 수행하여 표면의 경도를 더욱 높일 수 있다. 이를 통해 고경도, 고인성을 가진 방탄 패널(10)을 제작할 수 있다. 침탄깊이는 처리시간에 따라 2.0mm까지 얻을 수 있다.On the other hand, carburizing or carbo-nitriding treatment may be performed during the bainite step 100 to further increase the hardness of the surface. Thus, the bulletproof panel 10 having high hardness and high toughness can be manufactured. The carburizing depth can be up to 2.0 mm depending on the treatment time.

일반적으로 금속재는 고 인장강도, 고 강성률의 특성을 갖지만 표면이 비교적 미끄러워 비표면적이 작다.Generally, metallic materials have characteristics of high tensile strength and high rigidity, but the surface is relatively slippery and the specific surface area is small.

일부 발사체가 방탄 패널에 경사 방향으로 충격되거나, 방탄 패널의 모서리에 맞아 착용자의 목과 턱부위로 피탄되는 경우가 발생한다. 따라서 금속재 방탄 패널의 표면에 충돌하는 총탄의 피탄 방향을 착용자로부터 분산되도록 하기 위해, 표면에 보호코팅층(15)을 형성함으로써 피탄 방향을 유도할 수 있다.Some projectiles may be impacted on the bulletproof panel in an oblique direction, or may fit on the corners of the bulletproof panel to be projected onto the wearer's neck and jaw area. Therefore, in order to disperse the bullet direction of the bullet hit on the surface of the metallic bulletproof panel from the wearer, it is possible to induce the bullet direction by forming the protective coating layer 15 on the surface.

보호코팅층(15)의 소재는 폴리에틸렌, 폴리에틸렌-비닐아세테이트, 폴리우레탄, 폴리프로필렌, 폴리에스테르, 폴리아미드, 열가소성 폴리우레탄, 폴리올레핀, 박막형 페놀, 박막형 에폭시, 에나멜 페인트 중에서 선택될 수 있다.The material of the protective coating layer 15 may be selected from polyethylene, polyethylene-vinyl acetate, polyurethane, polypropylene, polyester, polyamide, thermoplastic polyurethane, polyolefin, thin film phenol, thin film epoxy and enamel paint.

도 4는 4150강의 베이나이트 처리된 경우와 담금질 및 템퍼링 처리된 경우의 물성을 비교한 도면이다.4 is a graph comparing the properties of the case of 4150 steel with bainite and the properties of quenching and tempering.

도 4를 참조하면, 베이나이트 처리된 경우가 담금질 및 템퍼링 처리된 경우에 비해 연신율은 대략 15배, 흡수하는 충격에너지는 대략 25배 정도 크게 되어 현저하게 향상된 방탄 성능을 보이고 있다.Referring to FIG. 4, the elongation is about 15 times and the impact energy absorbed is about 25 times as much as that in the case of bainitic treatment, compared with the case of quenching and tempering, showing remarkably improved bulletproof performance.

도 5는 6150강의 베이나이트 처리된 경우와 담금질 및 템퍼링 처리된 경우의 경도와 연신율의 관계를 도시한 도면이다.5 is a graph showing the relationship between the hardness and the elongation in the case of bainite treatment of 6150 steel and in the case of quenching and tempering treatment.

도 5를 참조하면, 동일 경도에 대하여 베이나이트 처리된 경우가 담금질 및 템퍼링 처리된 경우에 비하여 연신율이 현저하게 증가하는 것을 확인할 수 있다. 이는 총탄의 충격시 파손되지 않고 보다 충격손상에 잘 저항하는 것을 의미한다.Referring to FIG. 5, it can be seen that the elongation rate is significantly increased as compared with the case where the bainite treatment is applied to the same hardness, as compared with the quenching and tempering treatment. This means that the bullet is not damaged during impact and is more resistant to impact damage.

도 6은 6150강의 베이나이트 처리된 경우와 담금질 및 템퍼링 처리된 경우의 경도와 충격에너지의 관계를 도시한 도면이다.6 is a graph showing the relationship between hardness and impact energy in the case of bainite treatment of 6150 steel and in case of quenching and tempering treatment.

도 6을 참조하면, 동일 경도에 대하여 베이나이트 처리된 경우가 담금질 및 템퍼링 처리된 경우에 비하여 흡수된 충격에너지가 현저하게 증가하는 것을 확인할 수 있다. 이는 총탄 충격시 총단에 의한 충격에너지를 보다 많이 흡수할 수 있어, 방탄 성능이 좋다는 것을 의미한다.Referring to FIG. 6, it can be seen that the absorbed impact energy remarkably increases when the bainite treatment is performed for the same hardness, as compared with the case of quenching and tempering treatment. This means that the bullet impact can be more absorbed by the bullet when the bullet is impacted, which means that the bulletproof performance is good.

이상에서는 본 발명의 바람직한 실시예에 대하여 도시하고 설명하였지만, 본 발명은 상술한 특정의 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변형실시가 가능한 것은 물론이고, 이러한 변형 실시예들은 본 발명의 기술적 사상이나 전망으로부터 개별적으로 이해되어서는 안 될 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

방탄 패널 10
보호코팅층 15
방탄 직물층 20
방탄판 30
베이나이트 단계 100
보호코팅층 형성단계 200
Bulletproof Panel 10
Protective coating layer 15
Bulletproof fabric layer 20
Bulletproof board 30
Bai Knight Phase 100
Protective Coating Layer Formation Step 200

Claims (10)

총탄으로부터 신체를 보호하기 위해 사용되는 방탄 패널을 제작하는 방법에 있어서,
0.2 % 내지 2 % 탄소가 함유된 합금강을 오스테나이트 온도로 가열하여, 수십분 내지 수시간 동안 유지한 후, 마르텐사이트 개시온도 보다 높은 온도에서 열욕에 항온 냉각하여 베이나이트 조직을 생성하는 베이나이트 단계;를 포함하며,
상기 베이나이트 단계를 통해 인성을 높여 방탄 성능을 향상시키는 것을 특징으로 하는, 방탄 패널의 제작방법
A method of manufacturing a bulletproof panel for use in protecting a bullet from a bullet,
A bainite step of heating an alloy steel containing 0.2% to 2% carbon to austenite temperature, holding it for several tens of minutes to several hours, and then subjecting it to a hot bath at a temperature higher than the martensite start temperature to produce a bainite structure; / RTI >
And the toughness is improved through the bainite step to improve the bulletproof performance.
제1항에 있어서,
상기 베이나이트 단계는,
상기 열욕 온도는 마르텐사이트 개시온도 보다 높은 200℃ 내지 500℃로 상부 베이나이트와 하부 베이나이트 구역에서 수십분 유지 후 공기 중에서 냉각하는 것을 특징으로 하는, 방탄 패널의 제작방법
The method according to claim 1,
Wherein the bainite step comprises:
Characterized in that the hot bath temperature is maintained in air at 200 to 500 DEG C higher than the martensite start temperature for several tens of minutes in the upper bainite and lower bainite zones and then cooled in air
제2항에 있어서,
상기 베이나이트 단계를 수행하는 도중에 침탄 또는 침탄질화 처리를 수행하여 표면 경도를 높이는 것을 특징으로 하는, 방탄 패널의 제작방법
3. The method of claim 2,
Characterized in that carburizing or carbo-nitriding treatment is carried out during the bainite step to increase the surface hardness
제1항에 있어서,
상기 합금강은 탄소강, 탄소공구강, 스프링강, 베어링강, SCM강, SNCM강, 보론첨가강 등 탄소량이 0.2~2.0& 함유한 것을 특징으로 하는, 방탄 패널의 제작방법
The method according to claim 1,
The alloy steel is characterized by containing 0.2 to 2.0 carbon atoms, such as carbon steel, carbon tool steel, spring steel, bearing steel, SCM steel, SNCM steel and boron added steel How to make a bulletproof panel
제3항에 있어서,
상기 방탄 패널의 전면에 보호코팅층을 형성하여, 방탄 패널에 충돌된 총탄의 피탄 방향을 착용자로부터 분산되게 하는 보호코팅층 형성단계;를 더 포함하며,
상기 보호코팅층의 소재는 폴리에틸렌, 폴리에틸렌-비닐아세테이트, 폴리우레탄, 폴리프로필렌, 폴리에스테르, 폴리아미드, 열가소성 폴리우레탄, 폴리올레핀, 박막형 페놀, 박막형 에폭시, 에나멜 페인트 중에서 선택되는 것을 특징으로 하는 방탄 패널의 제작방법
The method of claim 3,
Forming a protective coating layer on the entire surface of the bulletproof panel to disperse the bullet direction of the bullet hit on the bulletproof panel from the wearer;
Wherein the material of the protective coating layer is selected from the group consisting of polyethylene, polyethylene-vinyl acetate, polyurethane, polypropylene, polyester, polyamide, thermoplastic polyurethane, polyolefin, thin film phenol, thin film epoxy and enamel paint Way
제1항 내지 제5항 중 어느 한 항의 제작방법으로 제작된 방탄 패널A bulletproof panel manufactured by the manufacturing method according to any one of claims 1 to 5 제6항에 있어서,
상기 방탄 패널의 후면에 적층되는 방탄 직물층;을 포함하는, 방탄판
The method according to claim 6,
And a bulletproof fabric layer laminated on the back surface of the bulletproof panel,
제7항에 있어서,
상기 방탄 직물층은 아라미드 소재로 형성된 복수의 층이 상기 방탄 패널의 후면에 적층되는 것을 특징으로 하는, 방탄판
8. The method of claim 7,
Characterized in that the ballistic layer is formed by lamination of a plurality of layers formed of an aramid material on the back surface of the bulletproof panel
제8항에 있어서,
상기 방탄 직물층 사이에는 접착성 폴리머 필름을 삽입하여 적층한 후 열 프레스를 이용하여 온도 80~150 및 압력 20~80bar에서열 압착시켜 용융된 폴리머가 상기 방탄 직물층의 섬유 사이에 스며들어 고형물을 형성하는 것을 특징으로 하는, 방탄판
9. The method of claim 8,
The adhesive polymer film is inserted between the bullet-proof fabric layers and laminated. The laminated polymer is thermo-compressed at a temperature of 80 to 150 and a pressure of 20 to 80 bar using a hot press so that the molten polymer permeates between the fibers of the bulletproof fabric layer, Wherein the airbag
제9항의 방탄판이 삽입된 방탄복 A bulletproof article having a bulletproof plate inserted therein
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090045676A (en) * 2007-11-02 2009-05-08 주식회사 영진세라믹스 Ceramic panel for bullet-proof jacket and a manufacturing method thereof
US20110197745A1 (en) * 2007-10-22 2011-08-18 Jay Carl Locke Carburized ballistic alloy
KR101615176B1 (en) 2015-10-28 2016-04-25 (주)대산플랜트 Armor with attachable and removable bracelet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110197745A1 (en) * 2007-10-22 2011-08-18 Jay Carl Locke Carburized ballistic alloy
KR20090045676A (en) * 2007-11-02 2009-05-08 주식회사 영진세라믹스 Ceramic panel for bullet-proof jacket and a manufacturing method thereof
KR101615176B1 (en) 2015-10-28 2016-04-25 (주)대산플랜트 Armor with attachable and removable bracelet

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