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KR20190006904A - Gasket - Google Patents

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Publication number
KR20190006904A
KR20190006904A KR1020180072212A KR20180072212A KR20190006904A KR 20190006904 A KR20190006904 A KR 20190006904A KR 1020180072212 A KR1020180072212 A KR 1020180072212A KR 20180072212 A KR20180072212 A KR 20180072212A KR 20190006904 A KR20190006904 A KR 20190006904A
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KR
South Korea
Prior art keywords
gasket
tube member
conduit
annular
container valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
KR1020180072212A
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Korean (ko)
Inventor
나카지마 히데토시
야마모토 코헤
Original Assignee
가부시키가이샤 퓨아론 쟈판
프리멧 제펜 씨오., 엘티디.
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Application filed by 가부시키가이샤 퓨아론 쟈판, 프리멧 제펜 씨오., 엘티디. filed Critical 가부시키가이샤 퓨아론 쟈판
Publication of KR20190006904A publication Critical patent/KR20190006904A/en
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints; Joints allowing movement
    • F16L27/08—Adjustable joints; Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/0804—Adjustable joints; Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
    • F16L27/0808—Adjustable joints; Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
    • F16L27/0824—Adjustable joints; Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings
    • F16L27/0832—Adjustable joints; Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings having axial bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L17/00—Joints with packing adapted to sealing by fluid pressure
    • F16L17/06—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between the end surfaces of the pipes or flanges or arranged in recesses in the pipe ends or flanges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
    • F16L19/005—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts comprising locking means for the threaded member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
    • F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • F16J2015/085—Flat gaskets without fold over
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/935—Seal made of a particular material
    • Y10S277/939—Containing metal

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Gasket Seals (AREA)
  • Chemically Coating (AREA)
  • Joints With Pressure Members (AREA)

Abstract

용기 밸브 실링 면 또는 도관의 실링 면에 변형을 일으키지 않는 개스킷을 제공한다. 개스킷(1)은, 용기 밸브(11) 및 도관(13) 이상의 경도를 갖춘 금속제의 링 형상 평판(24)으로 이루어지며, 용기 밸브(11) 또는 도관(13)에 당접하는 면에, 정점에 평탄부(26)를 갖는 복수의 환상 비드(27)를 구비한다.To provide a gasket that does not cause deformation on the vessel valve sealing surface or the sealing surface of the conduit. The gasket 1 is composed of a metal ring plate 24 having a hardness equal to or higher than that of the container valve 11 and the conduit 13. The gasket 1 is provided on the surface of the container valve 11 or the conduit 13, And a plurality of annular beads (27) having a flat portion (26).

Description

개스킷{Gasket}Gasket

본 발명은 개스킷에 관한 것이다. The present invention relates to a gasket.

종래, 압력 용기의 용기 밸브와 도관을 접속하는 관 이음에서, 해당 용기 밸브 실링 면과 그 도관의 실링 면 사이에는 가스 누설을 방지하기 위해서 개스킷이 설치되어 있다. 상기 개스킷으로는, 폴리테트라플루오르에틸렌 (PTFE), 폴리클로로트리플루오르에틸렌 (PCTFE) 등의 수지로 이루어진 것이 알려져 있다. 그러나, 상기 수지로 이루어진 개스킷은, 가스가 수지에 침투함으로 인한 투과 누설이나, 수지 크리프 변형에 의한 누설 등이 생기는 문제가 있다. Conventionally, a gasket is provided between a container valve sealing surface of a pressure vessel and a conduit connecting the conduit to prevent leakage of gas. The gasket is made of a resin such as polytetrafluoroethylene (PTFE) or polychlorotrifluoroethylene (PCTFE). However, the gasket made of the above resin has a problem that permeation leakage due to penetration of gas into the resin, leakage due to resin creep deformation, and the like occur.

이에, 상기 문제를 해결하기 위해서 금속제의 개스킷이 제안되고 있다. 상기 금속제 개스킷으로서, 예를 들면, 표면에 단면이 원호상인 복수의 원환상(圓環狀) 비드를 구비한 것이 알려져 있다(예를 들어, 특허 문헌 1 참조). 상기 복수의 원환상 비드를 구비한 금속제 개스킷에 따르면, 해당 원환상 비드가 상기 용기 밸브의 실링 면과 해당 도관의 실링 면에 당접함으로써, 해당 용기 밸브와 해당 도관 사이를 확실히 밀봉 가능하다고 되어 있다. In order to solve the above problem, a metal gasket has been proposed. As the metal gasket, for example, it is known that a plurality of annular beads having an arc-shaped cross section on the surface are provided (see, for example, Patent Document 1). According to the metal gasket having the plurality of annular beads, the annular bead abuts on the sealing surface of the container valve and the sealing surface of the conduit, so that it is possible to securely seal the container valve and the conduit.

일본 특허공개 2008-45730호 공보Japanese Patent Application Laid-Open No. 2008-45730

그러나, 특허 문헌 1 기재의 개스킷에서는, 단면 원호상의 비드가 원호의 정점에서 상기 용기 밸브의 실링 면 또는 상기 도관의 실링 면에 당접하게 된다. 이 결과, 특허 문헌 1 기재의 개스킷에서는, 접촉면 압력이 과잉이 되면 해당 용기 밸브 실링 면 또는 해당 도관의 실링 면에 변형을 일으켜, 누설의 원인이 되는 불편이 있다.However, in the gasket disclosed in Patent Document 1, the bead on the circular arc has contact with the sealing surface of the container valve or the sealing surface of the conduit at the apex of the arc. As a result, in the gasket described in Patent Document 1, when the contact surface pressure becomes excessive, there is a problem that the sealing surface of the container valve or the sealing surface of the corresponding conduit is deformed to cause leakage.

본 발명은 이러한 단점을 해소하여, 상기 용기 밸브의 실링 면 또는 상기 도관의 실링 면에 변형을 일으키지 않는 개스킷을 제공하는 것을 목적으로 한다. It is an object of the present invention to solve such a disadvantage and to provide a gasket which does not cause deformation on the sealing surface of the container valve or the sealing surface of the conduit.

이러한 목적을 달성하기 위해서, 본 발명의 개스킷은, 제1 관부재(管部材)와 제2 관부재(管部材) 사이에 배치되어 가스 누설을 방지하는 개스킷에 있어서, 제1 관부재 및 제2 관부재 이상의 경도를 갖는 금속제의 링 형상 평판으로 이루어지며, 제1 관부재 또는 제2 관부재에 당접하는 면에, 정점에 평탄부(平坦部)를 구비한 복수의 환상(環狀) 비드를 구비한 것을 특징으로 한다.In order to achieve the above object, the gasket of the present invention is a gasket disposed between a first pipe member and a second pipe member to prevent gas leakage, wherein the first pipe member and the second pipe member A plurality of annular beads having a flat portion at a vertex are formed on a surface of a ring-like flat plate made of metal having a hardness equal to or higher than that of the pipe member, .

본 발명의 개스킷은, 예를 들면, 압력 용기의 용기 밸브 등의 제1 관부재와 해당 용기 밸브에 접속되는 도관 등의 제2 관부재 사이에 배치된다. 이때, 본 발명의 개스킷은, 제1 관부재 및 제2 관부재 이상의 경도를 갖는 금속으로 이루어짐으로써, 뛰어난 내소성(耐燒性) 및 우수한 내식성을 얻을 수 있다.The gasket of the present invention is disposed, for example, between a first tube member such as a container valve of a pressure vessel and a second tube member such as a conduit connected to the container valve. At this time, the gasket of the present invention is made of a metal having a hardness of at least the first pipe member and the second pipe member, so that excellent fire resistance and excellent corrosion resistance can be obtained.

또한, 본 발명의 개스킷은, 제1 관부재 또는 제2 관부재에 당접하는 면에, 복수의 환상 비드를 구비함으로써 양 관부재 간을 확실히 밀봉하는 것이 가능하다. 또한, 본 발명의 개스킷은, 상기 환상 비드의 정점에 평탄부를 구비함으로써 제1 관부재 또는 제2 관부재에 대한 접촉 면압의 집중을 방지하여, 해당 제1 관부재의 실링 면 또는 해당 제2 관부재의 실링 면에 변형을 발생시키는 것을 방지할 수 있다.Further, in the gasket of the present invention, a plurality of annular beads are provided on the surface contacting the first tube member or the second tube member, so that it is possible to securely seal between the tube members. In the gasket of the present invention, since the flat portion is provided at the apex of the annular bead, concentration of the contact surface pressure on the first tube member or the second tube member is prevented, and the sealing surface of the first tube member, It is possible to prevent deformation from occurring on the sealing surface of the member.

상기 제1 관부재 및 상기 제2 관부재가 스테인리스로 구성되는 경우, 상기 링 형상 평판에 사용 가능한 금속으로는, 예를 들어, 순수 니켈 또는 해당 제1 관부재 및 해당 제2 관부재보다 큰 경도를 갖는 스테인리스로 구성된다. When the first tube member and the second tube member are made of stainless steel, metals usable for the ring-shaped plate include, for example, pure nickel or a material having a hardness greater than that of the first tube member and the second tube member .

또한, 본 발명의 개스킷에 있어서, 상기 환상 비드는, 표면에 폴리테트라플루오르에틸렌으로 이루어진 코팅층 또는 폴리테트라플루오르에틸렌 입자가 분산되어 있는 무전해(無電解) 니켈 도금층을 구비하는 것이 바람직하다. 본 발명의 개스킷은, 상기 환상 비드가 상기 코팅층 또는 상기 무전해 니켈 도금층을 구비함으로써, 실링에 필요한 축력(軸力)을 저감할 수 있어, 보다 뛰어난 내소성을 얻을 수 있다.Further, in the gasket of the present invention, it is preferable that the annular bead has a coating layer made of polytetrafluoroethylene or an electroless nickel plated layer in which polytetrafluoroethylene particles are dispersed. In the gasket of the present invention, since the annular bead has the coating layer or the electroless nickel plating layer, the axial force necessary for sealing can be reduced, and more excellent resistance to fire can be obtained.

상기 코팅층은, 예를 들면 10~50μm의 두께로 할 수 있다. 또한, 상기 무전해 니켈 도금층은, 예를 들면 5~10μm의 두께로 할 수 있다.The coating layer may have a thickness of, for example, 10 to 50 탆. The electroless nickel plated layer may have a thickness of, for example, 5 to 10 탆.

도 1은, 본 발명의 개스킷을 이용한 관 이음의 구성을 나타낸 설명 단면도이다.
도 2는, 본 발명의 개스킷의 구성을 나타내는 설명 단면도이다. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an explanatory sectional view showing the construction of a pipe joint using a gasket according to the present invention. Fig.
2 is an explanatory cross-sectional view showing the configuration of the gasket of the present invention.

이어, 첨부 도면을 참조하면서 본 발명의 실시 형태에 대해서 보다 자세히 설명한다. Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명의 개스킷(1)은, 예를 들면 도 1에 나타내는 관 이음(2)에 사용할 수 있다.The gasket 1 of the present invention can be used, for example, in a pipe joint 2 shown in Fig.

관 이음(2)은 가스 봄베 등의 압력 용기(도시하지 않음)에 사용되는 유니온 이음이다. 관 이음(2)은, 제1 관부재로 용기 밸브(11)의 도관용 물림쇠(12)와, 도관용 물림쇠(12)에 접속되는 제2 관부재인 도관(13)과 캡 너트(14)로 구성되어 있다. 용기 밸브(11) 및 도관(13)은 예를 들면, 스테인리스로 형성되어 있다.The pipe joint 2 is a union joint used for a pressure vessel (not shown) such as a gas cylinder. The pipe joint 2 has a conduit claw 12 of the container valve 11 as a first tubular member and a conduit 13 and a cap nut 14 as second tubular members connected to the conduit claw 12, . The container valve 11 and the conduit 13 are formed of, for example, stainless steel.

용기 밸브(11)는, 도관용 물림쇠(12)의 축과 직교하는 축을 갖는 용기용 물림쇠(15)와, 용기용 물림쇠(15)와 동축으로 설치되는 밸브 조작용 핸들(16)을 구비한다. 용기 밸브(11)는, 밸브 조작용 핸들(16)을 회동하여 도관용 물림쇠(12)와 용기용 물림쇠(15)를 접속함으로써 밸브를 열게된다. 또한, 용기 밸브(11)은, 도관용 물림쇠(12)와 용기용 물림쇠(15)를 차단함으로써 밸브를 폐쇄하게 된다.The container valve 11 includes a container staple 15 having an axis orthogonal to the axis of the conduit stapler 12 and a valve operation handle 16 provided coaxially with the container stapler 15. The container valve 11 opens the valve by pivoting the valve operation handle 16 to connect the conduit claw 12 and the container claw 15. Further, the container valve 11 closes the valve by blocking the conduit claw 12 and the container claw 15.

도관(13)은, 선단에 도관용 물림쇠(12) 내에 삽입되는 니플부(17)를 구비하며, 니플부(17)에는 외주(外周) 방향으로 연장 형성된 환상 플랜지(18)가 형성되어 있다. 캡 너트(14)는, 도관(13)에 외측으로 삽입되어, 자루형상부(19)가 환상 플랜지(18)의 도관용 물림쇠(12)와 반대쪽 측면에 베어링(20)을 통해서 당접된다. 또한, 캡 너트(14)는, 개구부(21)의 내주면에 형성된 암나사부(22)에 의해, 도관용 물림쇠(12)의 외주면에 형성된 수나사부(23)에 나선 결합된다. The conduit 13 has a nipple portion 17 that is inserted into the conduit claw 12 at the tip end and the nipple portion 17 is formed with an annular flange 18 extending in the outer circumferential direction. The cap nut 14 is inserted outwardly into the conduit 13 so that the bag-shaped portion 19 is in contact with the annular flange 18 via the bearing 20 on the side opposite to the conduit claw 12. The cap nut 14 is screwed to the male threaded portion 23 formed on the outer circumferential surface of the conduit claw 12 by the internally threaded portion 22 formed on the inner peripheral surface of the opening 21.

관 이음(2)에서, 개스킷(1)은, 도관용 물림쇠(12)의 선단면과 환상 플랜지(18)의 도관용 물림쇠(12) 측의 면 사이에 설치되며, 캡 너트(14)에 의해 죄어진다.In the pipe joint 2, the gasket 1 is provided between the front end face of the conduit claw 12 and the face of the annular flange 18 on the side of the conduit claw 12, It is tightened.

개스킷(1)은, 도 2에 나타낸 바와 같이, 링 형상의 평판상체(24)로 이루어진다. 평판상체(24)는, 중앙에 도관(13)의 니플부(17)가 삽입되는 관통부(25)를 구비하고 있다. 또한, 평판상체(24)의 앞뒤 양면에는, 정점에 평탄부(26)를 구비한 복수의 환상 비드(27)가 형성되어 있다. 환상 비드(27, 27) 사이에는 환상 홈부(28)가 형성되어 있다.As shown in Fig. 2, the gasket 1 is composed of a ring-shaped flat plate 24. [ The flat plate member 24 has a penetration portion 25 through which the nipple portion 17 of the conduit 13 is inserted in the center. A plurality of annular beads 27 having flat portions 26 at apexes are formed on the front and back surfaces of the flat plate member 24. An annular groove portion 28 is formed between the annular beads 27, 27.

개스킷(1)은, 관 이음(2)에 이용되며, 용기 밸브(11)의 도관용 물림쇠(12)와 도관(13)의 환상 플랜지(18) 사이에 설치된다. 그리고, 개스킷(1)은, 캡 너트(14)에 의해 죄여졌을 때, 복수의 환상 비드(27)를 통해 도관용 물림쇠(12)의 선단면 및 환상 플랜지(18)에 당접하기 때문에, 도관용 물림쇠(12)와 환상 플랜지(18) 사이를 확실히 밀봉할 수 있다. 또한, 개스킷(1)은 환상 비드(27)의 정점에 평탄부(26)를 구비하고 있기 때문에, 도관용 물림쇠(12)의 선단면 및 환상 플랜지(18)에 대한 접촉 면압의 집중을 방지하여, 도관용 물림쇠(12)의 선단면 및 환상 플랜지(18)에 변형을 발생시키는 것을 방지할 수 있다.The gasket 1 is used for the pipe joint 2 and is installed between the flange 18 of the conduit 13 and the conduit stump 12 of the container valve 11. The gasket 1 is used for the pipe joint 2, Since the gasket 1 is in contact with the distal end face of the cantilever chuck 12 and the annular flange 18 through the plurality of annular beads 27 when the gasket 1 is tightened by the cap nut 14, It is possible to reliably seal between the claw 12 and the annular flange 18. [ Since the gasket 1 is provided with the flat portion 26 at the apex of the annular bead 27, it is possible to prevent concentration of the contact surface pressure on the tip end face of the conduit claw 12 and the annular flange 18 , It is possible to prevent the deformation of the tip end face of the conduit claw 12 and the annular flange 18 from occurring.

개스킷(1)에 있어서, 평판상체(24)는, 용기 밸브(11) 및 도관(13)을 형성하는 스테인리스보다 큰 경도를 가진 금속제이다. 이 경우, 평판상체(24)는, 예를 들면 순수 니켈 또는 용기 밸브(11) 및 도관(13)을 형성하는 스테인리스보다 큰 경도를 가진 스테인리스로 형성할 수 있다.In the gasket 1, the flat plate member 24 is made of metal having a hardness larger than that of stainless steel forming the container valve 11 and the conduit 13. In this case, the plate member 24 can be formed of, for example, pure nickel or a stainless steel having a hardness larger than that of stainless steel forming the container valve 11 and the conduit 13. [

또한, 개스킷(1)은, 환상 비드(27)의 표면에 폴리테트라플루오르에틸렌으로 이루어진 코팅층 또는 폴리테트라플루오르에틸렌 입자가 분산되어 있는 무전해 니켈 도금층을 구비해도 좋다. 상기 코팅층 또는 상기 무전해 니켈 도금층은, 그 자체 공지의 방법에 의해 형성할 수 있다. 상기 코팅층은 예를 들면 10~50μm의 두께로 할 수 있다. 또한, 상기 무전해 니켈 도금층은 예를 들면 5~10μm의 두께로 할 수 있다The gasket 1 may be provided with a coating layer made of polytetrafluoroethylene or an electroless nickel plated layer in which polytetrafluoroethylene particles are dispersed on the surface of the annular bead 27. The coating layer or the electroless nickel plating layer can be formed by a method known per se. The coating layer may have a thickness of 10 to 50 mu m, for example. The electroless nickel plated layer may have a thickness of, for example, 5 to 10 탆

1 가스켓
11 용기 밸브 (제1 관부재)
13 도관 (제2 관부재)
24 링 형상 평판
26 평탄부
27 환상 비드1 gasket
11 Vessel valve (first tube member)
13 Conduit (second tube member)
24 ring-shaped flat plate
26 Flatbed
27 cyclic beads

Claims (6)

제1 관부재와 제2 관부재 사이에 배치되어 가스 누설을 방지하는 개스킷에 있어서,
제1 관부재 및 제2 관부재보다 큰 경도를 갖는 금속제의 링 형상 평판으로 구성되며,
제1 관부재 또는 제2 관부재에 당접하는 면에, 정점에 평탄부를 구비한 복수의 환상 비드를 구비한 것을 특징으로 하는 개스킷.A gasket disposed between a first tube member and a second tube member to prevent gas leakage,
And a ring-shaped flat plate made of metal having a greater hardness than the first and second tubular members,
And a plurality of annular beads provided with a flat portion at a vertex on a surface contacting the first tube member or the second tube member. 제 1항에 있어서, 상기 제1 관부재 및 상기 제2 관부재가 스테인리스로 구성되는 경우, 상기 링 형상 평판은 순수 니켈 또는 해당 제1 관부재 및 해당 제2 관부재보다 큰 경도를 갖는 스테인리스로 구성되는 것을 특징으로 하는 개스킷. The method according to claim 1, wherein when the first tube member and the second tube member are made of stainless steel, the ring-shaped flat plate is made of pure nickel or stainless steel having a hardness greater than that of the first tube member and the second tube member . 제 1항에 있어서, 상기 환상 비드는 표면에 폴리테트라플루오르에틸렌으로 이루어진 코팅층을 구비한 것을 특징으로 하는 개스킷. The gasket according to claim 1, wherein the annular bead has a coating layer made of polytetrafluoroethylene on its surface. 제 3항에 있어서, 상기 코팅층은 10~50μm의 두께를 갖는 것을 특징으로 하는 개스킷.4. The gasket as claimed in claim 3, wherein the coating layer has a thickness of 10 to 50 mu m. 제 1항에 있어서, 상기 환상 비드는 표면에 폴리테트라플루오르에틸렌 입자가 분산되어 있는 무전해 니켈 도금층을 구비한 것을 특징으로 하는 개스킷.The gasket according to claim 1, wherein the annular bead has an electroless nickel plated layer on the surface of which polytetrafluoroethylene particles are dispersed. 제 5항에 있어서, 상기 무전해 니켈 도금층은 5~10μm의 두께를 갖는 것을 특징으로 하는 개스킷.
6. The gasket according to claim 5, wherein the electroless nickel plated layer has a thickness of 5 to 10 mu m.
KR1020180072212A 2017-07-11 2018-06-22 Gasket Ceased KR20190006904A (en)

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