WO2007147298A1 - Raccord de tuyau à douille de raccordement par fusion et procédé de raccordement de ce dernier - Google Patents

Raccord de tuyau à douille de raccordement par fusion et procédé de raccordement de ce dernier Download PDF

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Publication number
WO2007147298A1
WO2007147298A1 PCT/CN2006/002653 CN2006002653W WO2007147298A1 WO 2007147298 A1 WO2007147298 A1 WO 2007147298A1 CN 2006002653 W CN2006002653 W CN 2006002653W WO 2007147298 A1 WO2007147298 A1 WO 2007147298A1
Authority
WO
WIPO (PCT)
Prior art keywords
socket
hot
section
layer
ring
Prior art date
Application number
PCT/CN2006/002653
Other languages
English (en)
Chinese (zh)
Inventor
Conglu Tian
Xiaoyi Peng
Hui Liang
Baiqian Li
Original Assignee
Foshan Rifeng Enterprise Co.Ltd.
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
Priority claimed from CNB2006100360040A external-priority patent/CN100419326C/zh
Priority claimed from CNA2006101221238A external-priority patent/CN101144556A/zh
Application filed by Foshan Rifeng Enterprise Co.Ltd. filed Critical Foshan Rifeng Enterprise Co.Ltd.
Publication of WO2007147298A1 publication Critical patent/WO2007147298A1/fr

Links

Classifications

    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints

Definitions

  • the invention relates to the technical field of aluminum-plastic composite pipe connecting pipe parts, in particular to a hot-melt joining method. Background technique
  • the existing aluminum-plastic composite pipe hot-melt pipe fittings have two connection methods, one is the outer layer welding method, that is, the outer layer of the heating pipe and the inner layer of the hot-melt pipe fitting respectively, and are connected after being melted, and the method is not
  • the aluminum alloy layer of the aluminum-plastic composite pipe port is sealed, and the aluminum alloy layer is easily corroded when the pipeline transports the liquid, which leads to the separation of the pipe, which greatly reduces the safety performance of the pipeline;
  • the Chinese utility model new patent No. CN2644848Y discloses the welding method.
  • one end of the pipe joint is provided with a socket between the inner and outer ring walls, and a bushing is arranged inside the inner ring wall.
  • the joint end interface and the end of the aluminum-plastic composite pipe are carried out.
  • the aluminum-plastic composite pipe is inserted into the socket, and the composite pipe is welded into the socket.
  • the pipe joint interface has a large hot-melt area and a long connection length, that is, the inner and outer ring walls are long-term hot-melt.
  • the object of the present invention is to provide a hot-melt joint socket member for an aluminum-plastic composite pipe which is reliable in heat and connection, high in strength, good in sealing performance, material-saving, low in manufacturing cost and convenient in operation.
  • Another object of the present invention is to provide a method of joining a hot melt connection socket member.
  • the technical solution of the present invention is: a hot-melt joint socket pipe member, the pipe member has a joint at least one end, and at least one end of the joint is provided with an adjacent axially spaced insertion insert and a single-layer joint; An exhaust observation hole is disposed at a rear portion of the socket portion; and the socket portion is provided with an outer ring and an inner ring.
  • the single-layer connecting segment may be an inner connecting portion, and the inner connecting portion is an inner ring extending portion of the socket portion; or an outer connecting portion, wherein the outer connecting portion is an outer ring of the socket portion Extension.
  • An annular socket is formed between the outer ring and the inner ring of the socket portion.
  • the rear of the outer ring is provided with 2-4 exhaust observation holes.
  • the front part of the outer ring is provided with a ring-shaped cavity.
  • the axial length of the hot-melt joint of the single-layer connecting section is greater than the axial length of the hot-melt joint of the socket section.
  • the joining method of the present invention comprises: the steps of: respectively heating the inner and outer layers of the end of the aluminum-plastic composite pipe, the outer layer of the inner connecting portion at the joint of the hot-melt joint socket member, and the outer portion of the socket portion Inner ring inner ring and inner ring outer ring surface; insert the end of the aluminum-plastic composite pipe into the socket section, so that the inner layer is respectively thermally connected with the outer layer of the inner layer connecting section and the outer ring surface of the socket inner ring , the outer layer is thermally fused with the inner ring surface of the outer ring of the socket; the end of the aluminum-plastic composite pipe is inserted into the bottom of the socket by the exhaust observation hole at the rear of the socket.
  • the socket section is provided with an outer ring and an inner ring which form an annular socket interface, and when connected, the bearing
  • the inner surface of the insert inner ring and the outer layer of the inner layer connecting section are respectively thermally fused with the inner surface of the inner layer of the aluminum-plastic composite pipe, and the inner surface of the outer ring of the socket portion is thermally fused with the outer surface of the outer layer of the aluminum-plastic composite pipe, and the outer portion of the outer layer of the aluminum-plastic composite pipe is thermally fused.
  • the compressed air in the socket can be discharged through the exhaust gas observation port in time to avoid the occurrence of fusible or virtual welding and the formation of a bubble separation layer on the hot-melt joint surface, so that the aluminum-plastic composite pipe and the pipe fitting are more tightly combined, so that the pipe joint is connected.
  • the connection performance of the bending and tensile strength is greatly improved; the exhaust observation hole can be used to observe whether the tube has been inserted into the bottom of the socket, thereby improving the quality and connection of the hot baking operation. Strength.
  • the inner and outer joints of the joint have different welding lengths, that is, the outer ring of the socket is shorter than the inner length of the inner ring of the socket and the inner connecting portion of the equal diameter, and the main and secondary joints at the joint are distinguished.
  • the main connecting surface is the main force receiving surface for the pipe connection.
  • the secondary connecting surface only undertakes the task of sealing the aluminum alloy layer of the aluminum-plastic composite pipe port. If it is too long, it not only increases the material cost, but also does not protrude the main connecting surface. The overall connection strength is reduced. At the same time, since the hot-melt connection area can be effectively reduced, the heating temperature of the connection surface can be easily controlled, and the inner ring of the pipe is not deformed during heating, so that it is not necessary to add a metal bushing on the inner wall of the inner ring of the socket, thereby saving the pipe fittings. Material costs and production costs.
  • the inner layer of the end of the aluminum-plastic composite pipe is heated by direct contact, and the outer layer is heated by radiant heating, and the direct heating speed is fast, the melting depth is large, and the joint is tighter after the connection, and
  • the outer layer of the aluminum-plastic composite pipe is thin, and it is not easy to damage the hot-melt adhesive layer between the outer plastic and the intermediate aluminum layer by radiant heating.
  • the outer layer of the inner layer connecting section and the outer ring outer ring surface of the socket section are heated by direct contact, and the inner ring surface of the outer ring of the socket section is heated by radiant heating; the direct heating speed is fast
  • the melting depth is large, and the main connecting surface is tightly combined after being connected.
  • the inner ring surface of the outer ring is heated by radiation to prevent melt deformation due to overheating, resulting in inconvenient operation.
  • the invention has the advantages that: the exhaust problem generated by the hot-melt connection of the aluminum-plastic composite pipe and the pipe fitting is completely solved, the quality of the hot-melt joint operation is improved, the reliability, the sealing property and the joint strength of the hot-melt joint are greatly improved, Material saving and easy operation.
  • FIG. 1 is a schematic view showing heating of a hot-melt joint socket member and an aluminum-plastic composite pipe according to Embodiment 1 of the present invention
  • Figure 2 is a schematic structural view showing the connection of the hot-melt joint socket member and the aluminum-plastic composite pipe shown in Figure 1;
  • Figure 3 is a structural schematic view showing another hot-melt joint socket member and an aluminum-plastic composite pipe according to Embodiment 2 of the present invention
  • one end of the hot-melt joint socket member for an aluminum-plastic composite pipe is a joint 1, which is connected by the inner joint portion 6 of the front end and the socket portion 5 adjacent thereto.
  • the inner connecting portion 6 is integrally connected with the inner ring 1-2 of the socket portion 5, and the socket portion 5 is provided with an outer ring 1-1 and an inner ring 1-2, and an annular socket 3 is formed therebetween.
  • the rear portion of the outer ring 1-1 is evenly distributed with 2 to 4 radial exhaust observation holes 2 on the same circumference.
  • the axial length of the inner connecting section 6 is longer than the socket section 5, and the inner connecting section 6 and the outer annular surface of the inner ring 1-2 form a main connecting surface of the heat fusion connection, and the inner annular surface of the outer ring 1-1 It is a sealing end face of the aluminum-plastic composite pipe 4, and belongs to the secondary connecting surface.
  • the wall thickness of the inner ring connecting section 6 and the inner ring 1-2 is thicker than that of the outer ring 1-1.
  • An annular volume-bearing groove 10 is provided at the end of the outer ring 1-1 of the socket portion 5.
  • the present embodiment has the following differences in the structure of the joint 1:
  • the single-layer connecting section of the joint 1 adopts the outer connecting section 9, and the outer connecting section 9 is the socket section 5.
  • the outer ring 1-1 extends.
  • the rest of the structure is the same as that of Embodiment 1.
  • the axial length of the outer connecting section 9 is longer than the axial length of the socket section 5, and the outer connecting section 9 and the inner annular surface of the outer ring 1-1 form the main part of the hot-melt connection.
  • the connecting surface, the outer ring surface of the inner ring 1-2 is the sealing end surface of the aluminum-plastic composite pipe 4, belonging to the secondary connecting surface, and the outer connecting portion 9 and the outer ring 1-1 are equal in thickness and wall thickness. Thinner than the inner ring 1-2.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un raccord de tuyau à douille de raccordement par fusion et le procédé de raccordement de ce dernier, le raccord de tuyau ayant un joint à une extrémité. Une extrémité dudit joint est munie d'une section de douille et d'une section de raccordement monocouche adjacente. Ladite section de douille et ladite section de raccordement monocouche s'étendent selon une distance axiale différente. L'extrémité arrière de ladite section de douille est munie d'un orifice d'évacuation et d'un regard, et ladite section de douille est munie d'une bague externe et d'une bague interne. Le procédé de raccordement comprend les étapes suivantes consistant à : chauffer la couche externe et la couche interne au niveau de l'extrémité du tuyau composite ; chauffer la couche de surface de la section de raccordement monocouche au niveau du joint du raccord de tuyau à douille de raccordement par fusion et de la surface de bague interne de la bague externe et de la surface de bague externe de la bague interne de la section de douille ; insérer l'extrémité du tuyau composite dans la section de douille pour permettre de souder sa couche interne et sa couche externe avec la couche de surface de la section de raccordement monocouche, ainsi que la surface de bague externe de la bague interne et la surface de bague interne de la bague externe de la section de raccordement ; et observer si le bout du tuyau composite vient en contact avec la partie inférieure de la section de douille. La présente application peut résoudre le problème de la survenance d'échappement de gaz pendant le raccordement par fusion du tuyau composite aluminium-plastique et du raccord de tuyau à douille, améliorer la qualité du raccordement par fusion, améliorer la fiabilité, les performances d'étanchéité et la résistance de collage du raccordement par fusion, économiser des matériaux et permettre un actionnement simple.
PCT/CN2006/002653 2006-06-15 2006-10-10 Raccord de tuyau à douille de raccordement par fusion et procédé de raccordement de ce dernier WO2007147298A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN200610036004.0 2006-06-15
CNB2006100360040A CN100419326C (zh) 2006-06-15 2006-06-15 一种热熔连接承插管件
CN200610122123.8 2006-09-13
CNA2006101221238A CN101144556A (zh) 2006-09-13 2006-09-13 一种热熔连接承插管件的连接方法

Publications (1)

Publication Number Publication Date
WO2007147298A1 true WO2007147298A1 (fr) 2007-12-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/002653 WO2007147298A1 (fr) 2006-06-15 2006-10-10 Raccord de tuyau à douille de raccordement par fusion et procédé de raccordement de ce dernier

Country Status (1)

Country Link
WO (1) WO2007147298A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9310012B2 (en) 2010-11-01 2016-04-12 Maricap Oy Sleeve part of a pipe joint and a pipe joint
CN110131511A (zh) * 2019-05-17 2019-08-16 武汉海威船舶与海洋工程科技有限公司 Rtp管电熔热熔不变尺寸连接结构及其连接方法
CN114633481A (zh) * 2022-04-07 2022-06-17 深圳弘联硕科技有限公司 一种水嘴焊机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05196187A (ja) * 1992-01-21 1993-08-06 Sekisui Chem Co Ltd 管と継手との接続方法
CN1410698A (zh) * 2002-11-27 2003-04-16 四川大学 用于铝塑复合管管路连接的钢塑复合热熔承插管件
CN2575405Y (zh) * 2002-05-31 2003-09-24 天津市华意保温制品有限公司 低压电熔焊套筒
CN2644848Y (zh) * 2003-09-12 2004-09-29 王占奎 热熔承插管件
CN2676001Y (zh) * 2004-01-02 2005-02-02 浙江铭仕管业有限公司 卡压式管道连接件
CN1594955A (zh) * 2004-06-30 2005-03-16 阎凤明 热熔卡压式复合管件及其制造方法
CN2702147Y (zh) * 2004-05-21 2005-05-25 王占奎 承插管热熔模套

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05196187A (ja) * 1992-01-21 1993-08-06 Sekisui Chem Co Ltd 管と継手との接続方法
CN2575405Y (zh) * 2002-05-31 2003-09-24 天津市华意保温制品有限公司 低压电熔焊套筒
CN1410698A (zh) * 2002-11-27 2003-04-16 四川大学 用于铝塑复合管管路连接的钢塑复合热熔承插管件
CN2644848Y (zh) * 2003-09-12 2004-09-29 王占奎 热熔承插管件
CN2676001Y (zh) * 2004-01-02 2005-02-02 浙江铭仕管业有限公司 卡压式管道连接件
CN2702147Y (zh) * 2004-05-21 2005-05-25 王占奎 承插管热熔模套
CN1594955A (zh) * 2004-06-30 2005-03-16 阎凤明 热熔卡压式复合管件及其制造方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9310012B2 (en) 2010-11-01 2016-04-12 Maricap Oy Sleeve part of a pipe joint and a pipe joint
CN110131511A (zh) * 2019-05-17 2019-08-16 武汉海威船舶与海洋工程科技有限公司 Rtp管电熔热熔不变尺寸连接结构及其连接方法
CN110131511B (zh) * 2019-05-17 2024-01-02 武汉海威船舶与海洋工程科技有限公司 Rtp管电熔热熔不变尺寸连接结构及其连接方法
CN114633481A (zh) * 2022-04-07 2022-06-17 深圳弘联硕科技有限公司 一种水嘴焊机
CN114633481B (zh) * 2022-04-07 2024-05-14 深圳弘联硕科技有限公司 一种水嘴焊机

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