CN1239288C - Method for connecting different material metal pipe joints - Google Patents
Method for connecting different material metal pipe joints Download PDFInfo
- Publication number
- CN1239288C CN1239288C CN 03114648 CN03114648A CN1239288C CN 1239288 C CN1239288 C CN 1239288C CN 03114648 CN03114648 CN 03114648 CN 03114648 A CN03114648 A CN 03114648A CN 1239288 C CN1239288 C CN 1239288C
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- pylon
- metal
- welding machine
- prefabricated
- hard metal
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- Expired - Fee Related
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- Mutual Connection Of Rods And Tubes (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The present invention discloses a method for connecting metal pipes with different materials, which better solves the connecting problem of two kinds of metal pipes with different materials. The present invention has the technical scheme that a concave pylon is prefabricated in a certain distance of the radial direction of the pipe wall of a soft metal pipe (1); a convex pylon is prefabricated in the certain distance of the radial direction of the pipe wall of a hard metal pipe (2); the outer side (4) of the convex pylon is provided with a screw thread; the soft metal pipe (1) and the hard metal pipe (2) are simultaneously installed in a clamp of a friction welding machine; welding connection is completed on the friction welding machine; or a special-shaped convex pylon is adopted for pressure connection in a mould. The present invention has the advantages that connecting positions are equal to or are slightly larger than the outer diameter of the metal pipes; therefore, space occupation is little; the connecting strength of joints can achieve the yield strength of a weaker kind of metal material in the two kinds of metal; bearing inner pressure can achieve water pressure of 80 kilograms or air pressure of 60 kilograms; the method for connecting metal pipes with different materials has simple and convenient manufacturing technics and high reliability.
Description
Technical field
The present invention relates to a kind of bimetal tube connector connecting method, the method for attachment of especially different material metallic pipe coupling.
Background technology
At present, the method that the connection of known two kinds of different metals pipes all adopts ring flange to add bolt connects, and there are many deficiencies in this method of attachment.The one, the ring flange size is bigger, and it is bigger not only to take up room, and consumable material is more; Moreover, in some application scenario,, often to bear interior pressure up to 60 kilograms as the pipeline of air separation plant, operating temperature is-190 °～30 °, and the linear expansion coefficient of two kinds of metals differs bigger, the reliability that ring flange connects is low; The 3rd, narrow and small in some occasion space, make the process operation difficulty of connection.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of method of attachment of different material metallic pipe coupling, can solve the connectivity problem of two kinds of different metals pipes preferably, the physical dimension of joint is greatly reduced, and the reliability height that connects, easy and simple to handle.
Technical scheme of the present invention is: will be than the tube wall of flexible metal conduit 1 certain distance prefabricated one recessed pylon radially; Will be than the tube wall of the hard metal tube 2 prefabricated projection platform of certain distance radially, the projection platform outside 4 is threaded; To be installed in the anchor clamps of round end of friction-welding machine than hard metal tube 2, be installed in than flexible metal conduit 1 in the anchor clamps of friction-welding machine mobile terminal, the starting friction welding machine, in the projection platform precession of hard metal tube 2, the projection platform outside 4 of hard metal tube 2 with finished seam with joint face 6 and be connected than flexible metal conduit 1 recessed pylon inboard 3, joint face 5.
The present invention's advantage compared to existing technology is, because friction-welding technique is adopted in the connection of two kinds of different metals pipes, perhaps adopts special-shaped projection platform to push connection in mould, and its junction equates with the metal tube external diameter or be bigger, so it is little to take up room; The bonding strength of joint can reach the yield strength of more weak a kind of metal material in two kinds of metals, and pressure can reach 80 kilograms of hydraulic pressure or 60 kilograms of air pressure in bearing; Manufacturing process is easy, and the reliability height.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of first embodiment
Fig. 2 is the structural representation of second embodiment
1-is than flexible metal conduit among the figure, the hard metal tube of 2-, the recessed pylon of 3-inboard, the 4-projection platform outside, 5, the 6-joint face, 7-groove
The specific embodiment
In the embodiment shown in fig. 1, will be than the tube wall of flexible metal conduit 1 certain distance prefabricated one recessed pylon radially, will be than the tube wall of the hard metal tube 2 prefabricated projection platform of certain distance radially, the projection platform outside 4 is threaded, to be installed in the anchor clamps of round end of friction-welding machine than hard metal tube 2, be installed in than flexible metal conduit 1 in the anchor clamps of friction-welding machine mobile terminal, the starting friction welding machine, in the projection platform precession of hard metal tube 2, the projection platform outside 4 of hard metal tube 2 with finished seam with joint face 6 and be connected than flexible metal conduit 1 recessed pylon inboard 3, joint face 5.
In another embodiment shown in Figure 2, earlier will be than the tube wall of hard metal tube 2 certain distance prefabricated one special-shaped projection platform radially, projection title portion can be the wedge that has certain angle, and the groove 7 that two symmetries are arranged is used for stop, projection platform middle part is an axial annular recess, and projection platform bottom is radial ringed groove; Than the tube wall of flexible metal conduit 1 certain distance prefabricated one recessed pylon radially; Put into mould with prefabricated hard metal tube 2 with than flexible metal conduit 1, under the effect of press pressure, produce plastic deformation than flexible metal conduit 1 and flow into, thereby realize closely being connected with hard metal tube 2 than flexible metal conduit 1 than cannelure and locking groove 7 in the hard metal tube 2.
In order to reduce pressure or plastic deformation to be more prone to, also prefabricated can be heated to 100～800 ℃ than flexible metal conduit 1, put into mould then and finish connection.
Claims (1)
1, a kind of method of attachment of different material metallic pipe coupling is characterized in that: will be than the tube wall of flexible metal conduit (1) certain distance prefabricated one recessed pylon radially; Will be than the tube wall of hard metal tube (2) the prefabricated projection platform of certain distance radially, the projection platform outside (4) is threaded; To be installed in the anchor clamps of round end of friction-welding machine than hard metal tube (2), be installed in the anchor clamps of friction-welding machine mobile terminal than flexible metal conduit (1), the starting friction welding machine, in the projection platform precession of hard metal tube (2), the projection platform outside (4) of hard metal tube (2) with finished seam than flexible metal conduit (1) recessed pylon inboard (3), joint face (5) with joint face (6) and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03114648 CN1239288C (en) | 2003-04-17 | 2003-04-17 | Method for connecting different material metal pipe joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03114648 CN1239288C (en) | 2003-04-17 | 2003-04-17 | Method for connecting different material metal pipe joints |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510089205 Division CN1768996A (en) | 2003-04-17 | 2003-04-17 | Joint method of metal tube connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1451506A CN1451506A (en) | 2003-10-29 |
| CN1239288C true CN1239288C (en) | 2006-02-01 |
Family
ID=29222792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03114648 Expired - Fee Related CN1239288C (en) | 2003-04-17 | 2003-04-17 | Method for connecting different material metal pipe joints |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1239288C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393468C (en) * | 2006-02-16 | 2008-06-11 | 苏州工业园区华焊科技有限公司 | Automatic pipe butt welding method |
| KR100821056B1 (en) * | 2007-04-25 | 2008-04-08 | 대한소결금속 주식회사 | Friction welding method |
| EP2556283A1 (en) * | 2010-04-05 | 2013-02-13 | Advanced Joining Technologies Inc. | Riser components and methods for making the same |
| CN102672427A (en) * | 2012-05-11 | 2012-09-19 | 新兴铸管股份有限公司 | Manufacturing method of bimetal impact-resistant bearing ring |
| CN102720248A (en) * | 2012-06-26 | 2012-10-10 | 林慧鹏 | Water supply and water discharge plastic cement pipe connecting structure |
| CN103191994B (en) * | 2013-04-03 | 2015-09-09 | 哈尔滨理工大学 | A kind of sheet metal distortion joint forming method |
| CN105485446A (en) * | 2014-09-19 | 2016-04-13 | 沃德(天津)传动有限公司 | Pressure lubrication system and welded type tube joint device thereof |
| CN105965150B (en) * | 2016-06-07 | 2018-01-26 | 中国船舶重工集团公司第七二五研究所 | A kind of friction stir welding method between dissimilar metal plate |
| JP6875212B2 (en) * | 2017-06-23 | 2021-05-19 | トヨタ自動車株式会社 | Manufacturing method of terminal plate |
| CN109352167A (en) * | 2018-11-22 | 2019-02-19 | 中国航空制造技术研究院 | Different alloys composite construction connection method |
| CN113649695A (en) * | 2021-08-12 | 2021-11-16 | 东莞理工学院 | Tubular metal anti-corrosion treatment device and application method |
| CN114273771B (en) * | 2022-01-11 | 2023-09-05 | 先导薄膜材料(安徽)有限公司 | Friction welding method for target assembly |
| CN114876968B (en) * | 2022-07-12 | 2022-10-11 | 四川工程职业技术学院 | Connecting structure of positioning cone |
-
2003
- 2003-04-17 CN CN 03114648 patent/CN1239288C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1451506A (en) | 2003-10-29 |
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