KR20040013552A - O-Ring having cover sheet - Google Patents

O-Ring having cover sheet Download PDF

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Publication number
KR20040013552A
KR20040013552A KR1020020046543A KR20020046543A KR20040013552A KR 20040013552 A KR20040013552 A KR 20040013552A KR 1020020046543 A KR1020020046543 A KR 1020020046543A KR 20020046543 A KR20020046543 A KR 20020046543A KR 20040013552 A KR20040013552 A KR 20040013552A
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KR
South Korea
Prior art keywords
ring
outer cover
rubber
teflon membrane
outer shell
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Application number
KR1020020046543A
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Korean (ko)
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KR100509646B1 (en
Inventor
김창용
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김창용
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Priority to KR10-2002-0046543A priority Critical patent/KR100509646B1/en
Publication of KR20040013552A publication Critical patent/KR20040013552A/en
Application granted granted Critical
Publication of KR100509646B1 publication Critical patent/KR100509646B1/en

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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
    • 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
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
    • 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
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
    • 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
    • Y10S277/91—O-ring seal
    • 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
    • Y10S277/944—Elastomer or plastic
    • Y10S277/945—Containing fluorine

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)

Abstract

PURPOSE: An O-ring with an outer cover is provided to improve chemical resistance while maintaining elasticity like a usual rubber ring and secure mechanical stability through reduced surface friction resistance. CONSTITUTION: In an O-ring(2) with an outer cover(6), the outer cover uses a fluorine resin Teflon membrane as base metal. The outer cover is adhered and fixed by a bonding agent while enclosing the outer peripheral surface of an annular base ring(4) made of rubber. In the outer cover, a first Teflon membrane, a polyethylene sheet, and a second Teflon membrane are successively layered.

Description

외피를 가지는 오링{O-Ring having cover sheet}O-Ring having cover sheet}

본 발명은 산업용 오링(O-Ring)에 관한 것으로서, 보다 특정적으로는 탄성을 가지는 고무재질의 링 외주면에 테프론 시트를 감싸 화학적으로 안정한 보호 외피를 가지는 오링에 관한 것이다.The present invention relates to an industrial O-ring (O-Ring), and more particularly to an O-ring having a chemically stable protective envelope wrapped around the Teflon sheet on the outer peripheral surface of the rubber ring having elasticity.

고무로 된 오링(O-Ring)은 기밀을 요하는 각종 기계 또는 설비의 연결 부위에서 실링을 위해 널리 사용되고 있다. 합성고무 또는 천연고무는 내화성에서 취약한 면이 있기 때문에, 소정의 화학물질에 노출된 상태에서 장기간 사용하게 되면 크랙이 발생하거나 부식되거나 또는 경화되는 문제가 있다.Rubber O-rings are widely used for sealing in the connection of various machines or equipment that require airtightness. Since synthetic rubber or natural rubber has a weak side in fire resistance, there is a problem that cracks, corrosion, or hardening occur when used for a long time in a state exposed to a certain chemical.

이에 대하여 화학적으로 안정한 불소고무가 오링 부재로 종래 사용되고 있지만, 그의 한계가 따르므로 작업자는 주기적으로 교체하여야 하거나 그의 망실 여부에 대하여 세심한 주의를 기울여야 했다.Chemically stable fluorine rubber has been conventionally used as an O-ring member. However, since its limitations have been applied, the worker has to be replaced periodically or pay close attention to his loss.

또한 오링은 표면 마찰저항이 심하므로 체결시 비틀어지거나 표면에 흠이 생기기 쉽다. 측 체결된 상태에서 비정상적인 응력을 가지게 되므로 내성이 약하였다.In addition, the O-ring has a high surface friction resistance, which is likely to cause twists or flaws in the fastening. The resistance was weak because it has abnormal stress in the side fastened state.

본 발명은 위와 같은 문제를 해결하고자 안출된 것으로서, 일반 고무 오링과 같은 탄성을 유지한 상태에서 내화학성이 향상되며, 표면 마찰저항이 적어 기계적으로도 안정한 오링을 제공하는 것을 목적으로 한다.The present invention has been made to solve the above problems, an object of the present invention is to improve the chemical resistance in the state of maintaining the elasticity, such as general rubber O-ring, and to provide a stable O-ring mechanically low surface friction resistance.

도 1은 본 발명에 의한 외피를 가지는 오링의 일부 절개 사시도이다. 도 2a,b는 본 발명에 의한 외피를 가지는 오링의 단면 구성도이다.1 is a partially cutaway perspective view of an o-ring having an envelope according to the present invention. 2A and 2B are cross-sectional configuration diagrams of an O-ring having an outer shell according to the present invention.

도 3은 본 발명의 다른 실시예에 의한 오링에 씌워지는 외피의 단면 도이다.Figure 3 is a cross-sectional view of the outer covering on the O-ring according to another embodiment of the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

2 ; 오링 4 ; 베이스링2 ; O-ring 4; Base ring

6,6' ; 외피6,6 '; coat

위와 같은 목적은, 불소수지인 테프론(Tefron) 멤브레인을 모재로 한 외피가 고무 재질로 된 환형태의 베이스링(base -ring)외 외주면을 에워싼 형태로 고정되는 것을 특징으로 하는 외피를 가지는 오링(O-Ring)에 의해 달성된다.The above object is an O-ring having an outer shell, characterized in that the outer shell having a Tefron membrane, which is a fluorine resin, is fixed in a form surrounding the outer circumferential surface of a ring-shaped base ring, which is made of rubber. It is achieved by (O-Ring).

이하, 본 발명의 실시예를 명세서에 첨부된 도면을 참조하여 더욱 상세하게설명하기로 한다.Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

도 1은 본 발명에 의한 외피를 가지는 오링(2)의 일부 절개 사시도이다. 도 2a,b는 본 발명에 의한 외피를 가지는 오링의 단면 구성도이다.1 is a partially cutaway perspective view of an o-ring 2 having an envelope according to the present invention. 2A and 2B are cross-sectional configuration diagrams of an O-ring having an outer shell according to the present invention.

일반 고무 재질의 환형태를 가지는 베이스 링(4, base ring) 외주연에 외피(6)가 씌워진다. 외피(6)는 코팅에 의해 막의 형태로 가해질 수도 있지만, 본 실시예에서는 시트 형태의 외피(6)를 접착수단에 베이스링(4) 외면에 접착 고정하고 있다. 균일한 두께의 연신 테프론 멤브레인(Tefron membrane) 즉, 불소수지가 외피의 모재로 사용된다.The outer shell 6 is covered on the outer circumference of the base ring 4 having a ring shape of a general rubber material. The sheath 6 may be applied in the form of a film by coating, but in this embodiment the sheath 6 in sheet form is adhesively fixed to the outer surface of the base ring 4 by the bonding means. Stretched Tefron membranes of uniform thickness, ie fluororesins, are used as the base material of the shell.

외피의 두께는 사용 상태에 따라 다를 수 있지만, 0.5mm ~ 2.0mm 정도의 범위에서 다양하게 설정될 수 있지만, 링 형태로 함으로써 구겨짐이 발생되지 않는 정도이면 무난할 것이다. 한편, 여러 형태의 테프론이 선택적으로 사용될 수 있지만, 그중 널리 공급되는 폴리4불화에틸렌(PTFE, Poly- tetrafluoro- ethlene)이 추천된다.The thickness of the outer shell may vary depending on the state of use, but may be set in a range of about 0.5mm to 2.0mm, but it will be fine as long as wrinkles do not occur by forming a ring. On the other hand, various types of teflon may be selectively used, of which poly tetrafluoro ethlene (PTFE) is widely supplied.

시트 형태의 외피는 테프론 전용 접착제에 의해 베이스링의 외주에 싸여진 상태에서 접착 고정된다. 그러므로 본 발명의 오링(2) 외주면에는 접착부위(8a,8b)가 나타나게 된다. 링의 길이방향을 따라 형성되는 접착부위(8a)가 오링의 외부를 향하도록 되어 있다. 외피를 접착하는 방식은 도 2a와 같이 맞대기 이음이거나, 도 2b와 같이 겹치기 이음일 수 있다.The sheath in the form of a sheet is adhesively fixed in a state surrounded by the outer circumference of the base ring by a Teflon-only adhesive. Therefore, adhesive sites 8a and 8b appear on the outer circumferential surface of the o-ring 2 of the present invention. An adhesive portion 8a formed along the longitudinal direction of the ring is directed toward the outside of the O-ring. The method of adhering the outer skin may be a butt joint as shown in FIG. 2A or an overlap joint as shown in FIG. 2B.

외피(2)인 테프론 멤브레인은 어는 정도의 연신율을 가지고 있기 때문에 오링 장착시에 생기는 물리적 변형에 적응할 수 있다.The Teflon membrane, which is the outer shell 2, has a certain degree of elongation and can adapt to the physical deformation occurring when the O-ring is mounted.

본 발명의 다른 실시예에 의하면, 외피를 다층 구조로 할 수 있다. 이러한 외피(6')의 단면 구조가 도 3에 도시된다. 즉, 모재인 제1 테프론 멤브레인(10) 상부에 고밀도 폴리에틸렌(PE, Polyethylene) 시트(12) 및 모재와 동일한 재질의 제2 테프론 멤브레인(10')이 순차적으로 적층될 수 있다. 폴리에틸렌에 대체하여 폴리프로필렌(PP, Polypropylene) 기타 불소계 플라스틱 수지 시트가 사용될 수도 있으며, 이는 밀도의 향상을 기함으로써 기밀성을 제고하기 위함이다. 즉, 기계적 연결부위의 틈 및 모재를 통과하는 일체의 입자를 차단하기 위하여 위와 같은 보조 시트를 사용하는 것이다.According to another embodiment of the present invention, the outer shell can have a multilayer structure. The cross-sectional structure of this shell 6 'is shown in FIG. That is, the high density polyethylene (PE) sheet 12 and the second Teflon membrane 10 'of the same material as the base material may be sequentially stacked on the first Teflon membrane 10 as the base material. In place of polyethylene, polypropylene (PP, polypropylene) and other fluorine-based plastic resin sheets may be used, in order to improve airtightness by improving density. That is, to use the auxiliary sheet as described above to block all the particles passing through the gap between the mechanical connection and the base material.

본 발명의 오링은 사용 용도에 따라 다양한 내경 및 굵기를 가질 수 있음이 분명하다. 또한, 외피는 2장 정도가 연이어 씌워져 고정될 수도 있다. 본 발명의 기술적 사상은 단지 오링에 한정되지 아니하며, 환형의 판상 패킹에도 적용할 수 있다. 또한, 테프론으로 된 외피를 베이스링에 감싸 고정하는 방식 또한 다양하게 변경될 수 있을 것이다.It is clear that the O-ring of the present invention may have various inner diameters and thicknesses depending on the intended use. In addition, the outer shell may be fixed by covering two or more pieces in succession. The technical idea of the present invention is not limited only to the O-ring, but may be applied to the annular plate packing. In addition, the manner of fixing the outer teflon envelope wrapped in the base ring may also be variously changed.

위와 같은 구조에 의하면, 일반 고무 오링과 같은 탄성을 유지한 상태에서 내화학성이 극히 향상되며, 표면 마찰저항이 적어 기계적으로도 안정한 오링이 제공된다. 그러므로, 본 발명의 외피를 가지는 오링은 어느 화학설비에도 적용할 수 있으며, 구성을 이루는 대부분의 재질이 저렴한 일반 고무재로서, 제조비용에 있어서도 만족스럽게 된다.According to the above structure, the chemical resistance is extremely improved while maintaining the same elasticity as a general rubber O-ring, and the surface frictional resistance is low, thereby providing a mechanically stable O-ring. Therefore, the O-ring having the shell of the present invention can be applied to any chemical equipment, and most of the materials constituting the composition are inexpensive general rubber materials, which are satisfactory in manufacturing cost.

Claims (2)

불소수지인 테프론(Tefron) 멤브레인을 모재로 한 외피(6)가 고무 재질로 된 환형의 베이스링(4, base ring)의 외주면을 에워싼 상태로 접착제에 의해 접착, 고정되는 것을 특징으로 하는 외피를 가지는 오링(O-Ring).An outer shell 6 based on a Tefron membrane, which is a fluorocarbon resin, is adhered and fixed by an adhesive while surrounding the outer circumferential surface of an annular base ring 4 made of rubber. O-Ring with. 제 1항에 있어서, 상기 외피는 제1 테프론 멤브레인(10), 폴리 에틸렌 시트(12) 및 제2 테프론 멤브레인(10')이 순차적으로 적층된 구조인 것을 특징으로 하는 외피를 가지는 오링.The O-ring having an outer shell according to claim 1, wherein the outer shell has a structure in which a first Teflon membrane (10), a polyethylene sheet (12) and a second Teflon membrane (10 ') are sequentially stacked.
KR10-2002-0046543A 2002-08-07 2002-08-07 O-Ring having cover sheet KR100509646B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100664616B1 (en) * 2005-02-01 2007-01-04 일신피티에프이공업(주) Butterfly-valve
KR100890601B1 (en) * 2008-03-06 2009-03-27 주식회사 에네스코 Hydraulic Actuator Bushing

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101380163B1 (en) * 2013-01-07 2014-04-02 이재규 Elastic o-ring
KR102400430B1 (en) * 2016-12-07 2022-05-20 엘지전자 주식회사 Scroll compressor
KR102562636B1 (en) * 2021-06-18 2023-08-02 황석환 Largre size O-ring
KR20230066677A (en) 2021-11-08 2023-05-16 동일기계공업 주식회사 Integral sealing ring of different materials

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63318364A (en) * 1987-06-18 1988-12-27 Ohara Kinzoku Kogyo Kk Holding ring for sliding piston in fluid pressure cylinder
US4998740A (en) * 1989-09-29 1991-03-12 Rockwell International Corporation Face seal assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100664616B1 (en) * 2005-02-01 2007-01-04 일신피티에프이공업(주) Butterfly-valve
KR100890601B1 (en) * 2008-03-06 2009-03-27 주식회사 에네스코 Hydraulic Actuator Bushing

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