CN1665951A - 管接头 - Google Patents

管接头 Download PDF

Info

Publication number
CN1665951A
CN1665951A CN03816179.6A CN03816179A CN1665951A CN 1665951 A CN1665951 A CN 1665951A CN 03816179 A CN03816179 A CN 03816179A CN 1665951 A CN1665951 A CN 1665951A
Authority
CN
China
Prior art keywords
ring
pipe
back ring
hardness
vickers
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.)
Granted
Application number
CN03816179.6A
Other languages
English (en)
Other versions
CN1320151C (zh
Inventor
松桥亮
末次和广
宫川英行
北利夫
曾我部恭太
吉川和博
森本明弘
佐藤准治
大道邦彦
下村嘉德
中浜隆泰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikin Inc
Original Assignee
Fujikin Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujikin Inc filed Critical Fujikin Inc
Publication of CN1665951A publication Critical patent/CN1665951A/zh
Application granted granted Critical
Publication of CN1320151C publication Critical patent/CN1320151C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints 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
    • F16L19/06Joints 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 in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/061Joints 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 in which radial clamping is obtained by wedging action on non-deformed pipe ends a pressure ring being arranged between the clamping ring and the threaded member or the connecting member
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/001Ferrous alloys, e.g. steel alloys containing N
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints 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
    • F16L19/08Joints 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 with metal rings which bite into the wall of the pipe

Abstract

本发明的管接头(30)包括从后端侧插入管(32)的管状主体(31)、嵌合在从主体(31)后端侧伸出的管(32)的周围的前环(33)及后环(34)、将前环(33)及后环(34)紧固而将管(32)固定在主体(31)上的盖形螺母(35)。后环(34)由合金制成,该合金包含有:按照重量%,C:0.001~0.01%、Si:≤5%、Mn:≤2%、P:≤0.03%、S:≤100ppm、O:≤50ppm、Cr:18~25%、Ni:15~25%、Mo:4.5~7.0%、Cu:0.5~3.0%、N:0.1~0.3%,其余部分实际上是Fe和其它不可避免的杂质。

Description

管接头
技术领域
本发明涉及一种管接头,特别涉及一种适合于在容易腐蚀的环境下使用的管接头。
背景技术
已往公知的管接头包括从后端侧插入管的管状主体、嵌合在从主体的后端侧伸出的管周围上的前环和后环、紧固该前环和后环将管固定在主体上的盖形螺母。
上述管接头上使用的后环,为了提高其硬度和强度,实施了渗炭或氮化这样的热处理。该热处理能在不减少强度和硬度的情况下减小后环尺寸,从而使管接头小型化。但是,其缺点是该后环使整个配管的耐腐蚀性降低。
发明内容
本发明的目的,是提供使后环的强度和硬度提高并且耐腐蚀性不降低的管接头。
本发明的管接头具有从后端侧插入管的管状主体、嵌合在从主体后端侧伸出的管的周围的前环及后环、将前环及后环紧固而将管固定在主体上的盖形螺母,其特征在于,后环由合金制成,该合金包含有:按照重量%,C:0.001~0.01%、Si:≤5%、Mn:≤2%、P:≤0.03%、S:≤100ppm、O:≤50ppm、Cr:18~25%、Ni:15~25%、Mo:4.5~7.0%、Cu:0.5~3.0%、N:0.1~0.3%,其余部分实际上是Fe和其它不可避免的杂质。
根据本发明的管接头,后环的材质是合金,该合金包含有:按照重量%,C:0.001~0.01%、Si:≤5%、Mn:≤2%、P:≤0.03%、S:≤100ppm、O:≤50ppm、Cr:18~25%、Ni:15~25%、Mo:4.5~7.0%、Cu:0.5~3.0%、N:0.1~0.3%,其余部分实际上是Fe和其它不可避免的杂质,所以,可提高后环的硬度和强度,同时不使随着其硬度和强度的提高而容易变差的耐腐蚀性降低。
该管接头中,维氏硬度是按照管<前环<后环的顺序增大,最好是管的维氏硬度为150~200,前环的维氏硬度为250~300,上述合金制后环的维氏硬度为350~400。当为这样时,后环吃进管的量大,因此,可用前环及后环将管强力地紧固。
附图说明
图1是本发明管接头的分解纵剖面图。
图2是表示图1的管接头组装状态的纵剖面图。
具体实施方式
下面,参照附图说明本发明的实施方式。
在该说明书中,前后关系是以图1和图2为基准,图的左侧为前,右侧为后。如图1和图2所示,该发明的管接头具有从后端侧插入管(32)的管状主体(接头部件)(31)、嵌合在从主体(31)后端侧伸出的管(32)的周围的前环(33)及后环(34)、将前环(33)及后环(34)紧固而将管(32)固定在主体(31)上的盖形螺母(35)。
在主体(31)的中间部外周形成朝外的凸缘(36),在其前后两端部的外周上分别形成了外螺纹部(37)(38)。在主体(31)的后端部内周上形成了内径比前侧的部分稍大的大径部(31a),在其后端部内周上形成了越向前越细的锥面(31b)。
在盖形螺母(35)的前端部侧的内周上形成了内螺纹(35a),该内螺纹(35a)与主体(31)后端部的外螺纹部(38)螺纹配合。在盖形螺母(35)的后端部形成了朝内的凸缘(35b)。
在前环(33)的外周上形成了与主体(31)后端的锥面(31b)吻合的锥面(33a),在前环(33)的后端部内周上形成了越往前越细的锥状的环形凹部(33b)。在后环(34)的前端形成有越往前越细的锥状的环形凸部(34a),该环形凸部(34a)嵌入前环(33)的凹部(33b)内。
在上述管接头(30)中,当拧紧盖形螺母(35)时,盖形螺母(35)的朝内的凸缘(35b)的前面与后环(34)的后面相抵接,使其前进。于是,后环(34)的凸部(34a)嵌入前环(33)的凹部(33b)内,使前环(33)与后环(34)一起前进,前环(33)的前端部与主体(31)的锥面(31b)相靠接。当进一步拧紧盖形螺母(35)时,使得前环(33)及后环(34)的各前端部向内方变形,吃进管(32)中,管(32)被强力地紧固。
各部件(31)(32)(33)(34)(35)的材质如下,主体(31)、管(32)、前环(33)及盖形螺母(35)是由SUS316制成。后环(34)是合金制,该合金包含有:按照重量%,C:0.001~0.01%、Si:≤5%、Mn:≤2%、P:≤0.03%、S:≤100ppm、O:≤50ppm、Cr:18~25%、Ni:15~25%、Mo:4.5~7.0%、Cu:0.5~3.0%、N:0.1~0.3%,且其余部分实际上是Fe和其它不可避免的杂质。另外,维氏硬度是,SUS316制的管(32)为180左右,上述合金制的后环(34)是400左右,前环(33)经过加工硬化而成为300左右。
作为后环(34)的材质使用的合金,由于可提高后环(34)的硬度,所以可形成以管(32)<前环(33)<后环(34)这样的顺序增大的硬度差,结果,后环(34)的凸部(34a)吃进管(32)的量大,因此,可将管(32)强力地紧固。另外,上述合金具有即使提高硬度其耐腐蚀性也不降低的优点,所以能提高紧固力并保持耐腐蚀性。
工业实用性
本发明的管接头,具有良好的耐腐蚀性,而且可替换已往的管接头,所以能用于提高在容易腐蚀的环境下使用的管接头的耐腐蚀性。

Claims (2)

1.管接头,包括从后端侧插入管的管状主体、嵌合在从主体后端侧伸出的管的周围的前环及后环、将前环及后环紧固而将管固定在主体上的盖形螺母,其特征在于,后环由合金制成,该合金包含有:按照重量%,C:0.001~0.01%、Si:≤5%、Mn:≤2%、P:≤0.03%、S:≤100ppm、O:≤50ppm、Cr:18~25%、Ni:15~25%、Mo:4.5~7.0%、Cu:0.5~3.0%、N:0.1~0.3%,而且其余部分实际上是Fe和其它不可避免的杂质。
2.如权利要求1所述的管接头,其特征在于,维氏硬度是按照管<前环<后环的顺序增大,管的维氏硬度为150~200,前环的维氏硬度是250~300,上述合金制后环的威氏硬度为350~400。
CNB038161796A 2002-07-09 2003-07-09 管接头 Expired - Fee Related CN1320151C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP199919/2002 2002-07-09
JP2002199919A JP4058733B2 (ja) 2002-07-09 2002-07-09 管継手

Publications (2)

Publication Number Publication Date
CN1665951A true CN1665951A (zh) 2005-09-07
CN1320151C CN1320151C (zh) 2007-06-06

Family

ID=30112490

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB038161796A Expired - Fee Related CN1320151C (zh) 2002-07-09 2003-07-09 管接头

Country Status (8)

Country Link
US (1) US20060091672A1 (zh)
EP (1) EP1536030A4 (zh)
JP (1) JP4058733B2 (zh)
CN (1) CN1320151C (zh)
AU (1) AU2003281318A1 (zh)
CA (1) CA2491990A1 (zh)
IL (1) IL166128A0 (zh)
WO (1) WO2004005570A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI705233B (zh) * 2015-10-30 2020-09-21 日商富士金股份有限公司 配管連接構造、配管連接配件及配管的連接方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4263665B2 (ja) * 2004-07-12 2009-05-13 株式会社荒井製作所 管継手
JP3912613B1 (ja) * 2005-11-22 2007-05-09 兼工業株式会社 管継手
GB0607623D0 (en) 2006-04-19 2006-05-31 Aes Eng Ltd Bearing protector with air pumps
CN100383441C (zh) * 2006-05-25 2008-04-23 扬中市瑞星工程塑料厂 源瓶专用组合管阀件
WO2017094401A1 (ja) * 2015-11-30 2017-06-08 日立オートモティブシステムズ株式会社 インジェクタ、燃料レール及び燃料レールアッセンブリ
JP6934236B2 (ja) * 2016-11-01 2021-09-15 株式会社フジキン 食い込み式管継手用リングの製造方法
US20210041045A1 (en) * 2018-01-29 2021-02-11 Tylok International, Inc. Axial swaged fitting
KR102110740B1 (ko) * 2018-04-06 2020-05-14 김병국 배관 피팅장치
JP2020090991A (ja) * 2018-12-05 2020-06-11 横浜ゴム株式会社 管継手用加締めナット
CN110127036A (zh) * 2019-05-22 2019-08-16 安徽卓尔航空科技有限公司 一种变距螺旋桨桨叶与桨毂连接装置
JPWO2022224873A1 (zh) 2021-04-19 2022-10-27

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2091874A (en) * 1936-05-21 1937-08-31 Hughes Tool Co Flow bean indicator
US2701149A (en) * 1952-04-29 1955-02-01 Kreidel Hans Compressed wedge pipe coupling
BE795528A (fr) * 1971-02-16 1973-06-18 Crawford Cullen B Raccord de jonction de tubes
US3767164A (en) * 1971-07-01 1973-10-23 Milwaukee Valve Co Inc Throttle-shutoff valve
US3888521A (en) * 1973-07-11 1975-06-10 Parker Hannifin Corp Tube coupling and ferrule therefor
US4705062A (en) * 1987-02-18 1987-11-10 Cameron Iron Works, Inc. Choke and improved needle tip therefor
US5135269A (en) * 1990-07-09 1992-08-04 Cajon Company Tube coupling
DE4038539C1 (zh) * 1990-12-03 1992-04-30 Parker-Ermeto Gmbh, 4800 Bielefeld, De
DE4311278A1 (de) * 1993-04-06 1994-10-13 Schwer Gmbh Edelstahl Fittings Rohrverbindung mit einem Schneidring
JPH0814449A (ja) * 1994-06-27 1996-01-16 Fujikin:Kk 管継手
JP2936316B2 (ja) * 1996-02-28 1999-08-23 株式会社杉山商事 管継手の後方環体の製造方法
JP2002069590A (ja) * 2000-09-01 2002-03-08 Nkk Corp 高耐食クラッド鋼
US6345806B1 (en) * 2000-11-13 2002-02-12 Jiun-Yan Chen Foot-actuated faucet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI705233B (zh) * 2015-10-30 2020-09-21 日商富士金股份有限公司 配管連接構造、配管連接配件及配管的連接方法

Also Published As

Publication number Publication date
EP1536030A1 (en) 2005-06-01
EP1536030A4 (en) 2005-08-31
JP4058733B2 (ja) 2008-03-12
US20060091672A1 (en) 2006-05-04
CN1320151C (zh) 2007-06-06
WO2004005570A1 (ja) 2004-01-15
CA2491990A1 (en) 2004-01-15
AU2003281318A1 (en) 2004-01-23
IL166128A0 (en) 2006-01-15
JP2004044633A (ja) 2004-02-12

Similar Documents

Publication Publication Date Title
CN1320151C (zh) 管接头
DE60203879T2 (de) Rohrverbindung mit trennbarem greifring
EP0195759B1 (de) Kontaktspitze für Schweisselektrode
CN100344781C (zh) 堆焊用耐磨铜合金及气门座
DE4311391C2 (de) Hochdruckkraftstoffeinspritzleitung
US4346739A (en) Composite metal tubing
CA2550454A1 (en) Hardfacing electrode
SI1408130T1 (en) Nickel based alloy for electrical welding of nickel alloys and steels, welding wire and its use
EP1796104A3 (de) Erste-Wand-Komponente mit Ringsegment
WO2011053506A1 (en) Low silver, low nickel brazing material
DE102011053012A1 (de) Schneidring-Vormontagegerät für Rohrverschraubungen
JPH0814449A (ja) 管継手
CN1709636A (zh) 管模堆焊药芯焊丝
CN1180112C (zh) 形状记忆合金
AU1881500A (en) A ptfe tube
EP2314726A3 (en) Titanium alloy having improved corrosion resistance and strength
EP1707860A2 (de) Flexible Gasleitung
DE102008063691A1 (de) Hülse für elektrische oder elektronische Geräte
CN1250884C (zh) 连接构件固定结构
JP3869274B2 (ja) 溶接用アルミニウム合金ワイヤ
DE102021128451A1 (de) Glocke für einen Fahrradlenker
CN105562196A (zh) 一种磁棒
CN1443624A (zh) 改进焊缝强度的焊接材料
JPH07204886A (ja) Al基材料表面への肉盛溶接用複合ワイヤおよび耐摩耗性Al基部材
CN209256052U (zh) 焊枪送丝管

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee