KR20060098159A - Method of stress reducing for strain of press type pipe joint reduction - Google Patents

Method of stress reducing for strain of press type pipe joint reduction Download PDF

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Publication number
KR20060098159A
KR20060098159A KR1020050019886A KR20050019886A KR20060098159A KR 20060098159 A KR20060098159 A KR 20060098159A KR 1020050019886 A KR1020050019886 A KR 1020050019886A KR 20050019886 A KR20050019886 A KR 20050019886A KR 20060098159 A KR20060098159 A KR 20060098159A
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South Korea
Prior art keywords
crimping
outer peripheral
reducing
peripheral surface
shaft diameter
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KR1020050019886A
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Korean (ko)
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김칠현
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김칠현
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Priority to KR1020050019886A priority Critical patent/KR20060098159A/en
Publication of KR20060098159A publication Critical patent/KR20060098159A/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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/141—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside
    • 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
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/16—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling the pipe joint consisting of overlapping extremities having mutually co-operating collars
    • F16L13/161—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling the pipe joint consisting of overlapping extremities having mutually co-operating collars the pipe or collar being deformed by crimping or rolling

Abstract

압착식 금속 관이음쇠①의 축경압착부③외주면에 동,식물성 및 비(非)합성수지 계통의 광물성 윤활제(潤滑劑)를 도포하여 주므로써, 축경압착부③의 외주면과 압착용다이스④ 내주의 가압면⑥ 사이의 금속간 접촉마찰계수를 축소시켜, 관⑤과의 압착체결시 축경압착부③의 축경변형저항을 경감 시키므로서, 소요압착력을 줄일수있고 축경된 축경압착부③의 외주면도 주름없이 매끈한 곡면으로 유지되어, 주름으로 인한 누수 및 응력부식의 위험을 예방 할수 있게 된다.The outer peripheral surface of the crimped metal fittings ③ and the dies for the crimping ④ are applied by applying a mineral lubricant of copper, vegetable and non-synthetic resin system to the outer peripheral surface of the crimped metal fitting ①. By reducing the contact friction coefficient between metals between the surface ⑥ and reducing the axial diameter deformation resistance of the shaft diameter compression section ③ when crimping with the tube ⑤, the required compression force can be reduced and the outer peripheral surface of the shaft diameter compression section ③ without wrinkles The smooth curved surface prevents the risk of water leakage and stress corrosion caused by wrinkles.

관이음쇠, 체결부, 축경압착, 금속관, 압착용다이스. Pipe fittings, fasteners, shaft crimps, metal pipes, crimp dies.

Description

압착식 관이음쇠의 축경변형저항 경감 방법.{METHOD OF STRESS REDUCING FOR STRAIN OF PRESS TYPE PIPE JOINT REDUCTION}Reduction of shaft deformation resistance of crimp fittings. {METHOD OF STRESS REDUCING FOR STRAIN OF PRESS TYPE PIPE JOINT REDUCTION}

도1은 대한민국 특허 공개 제 2000-0056211 호의 압착식 관이음쇠①의 체결부② 단부에 형성된 축경압착부③ 외주에 윤활제가 도포된 관이음쇠①와 관⑤ 그리고 압착용다이스④의 부분 단면도.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a partial cross-sectional view of a tube fitting ① and a tube ⑤ and a crimping die ④ coated with a lubricant on the outer periphery of the shaft diameter crimping portion ③ formed at the end of the fastening portion ② of the crimp-type pipe fitting No. 2000-0056211.

도2는 윤활제 가 도포된면 의 표시.2 is a representation of the surface on which the lubricant is applied.

도3은 대한민국 실용신안 공고 제 86-2107 호의 압착식 관이음쇠①의 축경 압착부③에 윤활제가 도포된 상태의 부분측면도Figure 3 is a partial side view of the lubricant applied to the shaft diameter crimping portion ③ of the crimp type pipe fitting ① of the Republic of Korea Utility Model Publication No. 86-2107

도4는 일본 특허 공개 소53-70072호의 압착식 관이음쇠①의 축경압착부③에 윤활제가 도포된 상태의 부분측면도.Fig. 4 is a partial side view of a state in which lubricant is applied to the axial diameter crimping part ③ of the crimp type fitting ① of JP-A-53-70072.

- 도면의 주요부분에대한 부호설명 --Code description for main parts of drawing-

1 : 관이음쇠 5 : 관1: pipe fitting 5: pipe

2 : 체결부 6 : 가압면2 fastening part 6 pressure surface

3 : 축경압착부 7 : 윤활제 도포면3: Axis Crimping Part 7: Lubricant Coating Surface

4 : 압착용다이스 8 : 다이스의축경압착방향4: Crimping die 8: Diameter axis crimping direction of the die

본 발명은 압착식 금속 관이음쇠①의 접속작업시 발생되는 축경압착변형저항의 경감을 위한 기술에 관한 것으로, 종래의 축경압착 방법 에서는 본 발명의 윤활제 도포면⑦이 없어, 직접면접촉되는 관이음쇠①의 축경 압착부③ 외주면과 압착용 다이스④ 내면의 가압면⑥ 사이의 금속간 마찰로 인한 과대한 마찰계수로 큰변형 저항이 야기되어 왔다.The present invention relates to a technique for reducing the shaft diameter compression deformation resistance generated during the connection operation of the crimped metal fittings ①, in the conventional shaft diameter crimping method, there is no lubricant coating surface ⑦ of the present invention, the pipe fittings ① in direct contact with the surface Large deformation resistance has been caused by the excessive friction coefficient due to the intermetallic friction between the outer diameter surface of the shaft diameter squeezed portion ③ and the pressing surface ⑥ on the inner surface of the squeezing die ④.

압착식 금속관이음쇠①의 관⑤과의 접속작업시 발생되는 축경압착부③ 외주면과 압착용다이스④ 내주의 가압면⑥ 사이의 마찰저항을 경감시키므로써 관이음쇠①의 축경 변형에 따른 소재의 흐름을 용이하게하여 소요 압착력을 줄이고, 축경변형에 따른 축경부 외주의 주름현상을 방지하여, 프레스공구의 소요동력과 중량을 작게하고, 누수사고 및 소재의 부분적과대변형에 따른 응력부식 현상을 방지하는것이 기술적 과제이다.Reduces the frictional resistance between the outer peripheral surface of the crimped metal pipe fitting ① and the pressing surface ⑥ of the inner circumference of the crimping die ④ and the pressing surface ⑥ of the inner circumference. It is easy to reduce the required compressive force, prevent wrinkles on the outer circumference of the shaft part due to the shaft diameter deformation, reduce the required power and weight of the press tool, and prevent the stress corrosion phenomenon due to leakage accidents and partial and large deformation of the material. It is a technical challenge.

압착식 관이음쇠①의 축경압착부③ 외주면에 우지(牛脂), 비누, 흑연, 인산염 피막, 인산아연피막, 수산염피막, 금속염, 왁스, 양초, 기타의 동,식물성 및 비합성수지 계통의 윤활제를 도포 하여 주는것을 그 구성으로 한다Apply lube, soap, graphite, phosphate coating, zinc phosphate coating, oxalate coating, metal salt, wax, candles, and other copper, vegetable and non-synthetic resins on the outer circumferential surface of the crimp-type pipe fitting①. It is the composition to give

관⑤에 축경되어 접속체결되는 압착식 금속관이음쇠①의 축경압착부③ 외주면에 우지, 비누,흑연, 인산염피막, 인산아연피막, 수산염피막, 금속염, 왁스, 양 초, 기타 동,식물성 및 비합성수지 계통의 윤활제를 도포하여 주므로써 축경압착부③ 외주면과 압착용다이스④ 내면의 가압면⑥간의 마찰계수가 저하되도록하여, 축경압착시의 마찰저항을 경감시키고, 마찰금속면간의 스틱슬립(STICK SLIP)현상도 방지하여 소재의 흐름을 용이하게 하므로써, 소요압착력을 줄이고 압착용 프레스 공구의 중량을 경량화할수 있으며, 축경된 축경압착부③의 주름지는 현상을 방지할수 있게 되어, 누수 및 관이음쇠① 소재의 응력부식 현상을 방지하는 효과가 있게된다. On the outer circumferential surface of the crimped metal pipe fitting ① which is connected to the tube ⑤ and fastened to the outer surface, Uji, soap, graphite, phosphate coating, zinc phosphate coating, oxalate coating, metal salt, wax, candle, other copper, vegetable and non-synthetic resin Applying a lubricant to the system reduces the coefficient of friction between the outer peripheral surface of the shaft diameter crimp section ③ and the pressure surface ⑥ on the inner surface of the crimp die ④, reducing frictional resistance during shaft diameter crimping, and stick slip between friction metal surfaces. By preventing phenomena and facilitating the flow of the material, it can reduce the required pressing force and lighten the weight of the pressing press tool, and can prevent the wrinkling of the reduced diameter diameter crimping part ③. The effect of preventing the stress corrosion phenomenon.

여기서 염화비닐등의 합성수지 박막도 윤활역활이 가능하나, 압착작업 과정에서 복수개수의 압착용 다이스④사이공간 및 가압면⑥에 윤활제 도포면⑦으로부터 박리된 합성수지 박막이 누적 접착되고 끼워져서 압착 칫수 및 형상에 이상을 초래할 위험이 있어 이의 사용을 제외한다. Here, the synthetic resin thin film such as vinyl chloride can also serve as a lubrication role, but the synthetic resin thin film peeled from the lubricant coating surface ⑦ is accumulated and adhered to the plurality of pressing dies ④ and the pressing surface ⑥ during the crimping operation. There is a risk of causing abnormalities, so its use is excluded.

Claims (1)

압착식 금속관이음쇠①의 체결부②위의 관⑤과 축경체결되는 축경압착부③ 외주면에, 우지, 비누, 흑연, 인산염피막, 인산아연피막, 수산염피막, 금속염, 왁스, 양초등 동,식물성 및 비합성수지 계통의 광물성 윤활제를 도포하여 주는것을 특징으로 하는 압착식 관이음쇠①의 축경변형저항 경감방법.On the outer circumferential surface of the crimped metal pipe fitting ① and the shaft diameter crimped portion that is fastened to the tube ⑤ on the fastening part ②, the copper, vegetable properties such as tallow, soap, graphite, phosphate coating, zinc phosphate coating, oxalate coating, metal salt, wax, candle, etc. A method for reducing the axial strain resistance of a crimped pipe fitting (1) characterized by applying a mineral lubricant of a non-synthetic resin system.
KR1020050019886A 2005-03-10 2005-03-10 Method of stress reducing for strain of press type pipe joint reduction KR20060098159A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021046670A1 (en) * 2019-09-09 2021-03-18 浙江海亮股份有限公司 Snap-fitting connecting pipe, snap-fitting composite pipe, and production method
US11703168B2 (en) 2018-04-20 2023-07-18 Uponor Innovation Ab Press fitting for a pipe joint and method for its manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11703168B2 (en) 2018-04-20 2023-07-18 Uponor Innovation Ab Press fitting for a pipe joint and method for its manufacture
WO2021046670A1 (en) * 2019-09-09 2021-03-18 浙江海亮股份有限公司 Snap-fitting connecting pipe, snap-fitting composite pipe, and production method

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