CN1836803A - Welding-free thin wall metal envelope plastic composite tube and its production method - Google Patents
Welding-free thin wall metal envelope plastic composite tube and its production method Download PDFInfo
- Publication number
- CN1836803A CN1836803A CN 200510056148 CN200510056148A CN1836803A CN 1836803 A CN1836803 A CN 1836803A CN 200510056148 CN200510056148 CN 200510056148 CN 200510056148 A CN200510056148 A CN 200510056148A CN 1836803 A CN1836803 A CN 1836803A
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- Prior art keywords
- plastics
- working
- metal
- lobe
- shell
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- 229920003023 plastic Polymers 0.000 title claims abstract description 55
- 239000004033 plastic Substances 0.000 title claims abstract description 55
- 239000002184 metal Substances 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000002131 composite material Substances 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 claims description 7
- 230000003190 augmentative effect Effects 0.000 claims description 2
- 229910000939 field's metal Inorganic materials 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 6
- 230000007306 turnover Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- Branch Pipes, Bends, And The Like (AREA)
Abstract
The present invention relates to composite metal-plastic pipe and its production process. The composite metal-plastic pipe features the outer metal layer comprising two halves including one half with flange capable of covering the seams between these two halves, and the inner plastic layer with one section near the end and in increased inner diameter. After the plastic layer is covered with the metal casing, part of the end flange is inward turned to cover the great inner diameter section of the plastic layer closely so as to clamp the plastic layer, and the two halves of metal casing may be connected integrally with the plastic layer without welding.
Description
Technical field
The present invention relates to a kind of thin wall metal casing plastic composite pipe and production method thereof, this pipe fitting is used for the connection that liner is moulded thin wall metal pipeline.
Background technology
Mould in the thin wall metal pipeline system at liner, can be connected with the method for hot melt between pipeline and the pipe fitting.The skin of its pipe fitting has the thin-wall metal containment vessel, and internal layer is the plastic pipe (function of pipe fitting thin-wall metal case is the plastic pipe of protection internal layer, no linkage function) that is connected with pipe hot melting.
The preparation method that has occurred is: the metal shell with two lobes process, with the plastic pipe hard-pressed bale within it, by methods such as welding, the two halves metal shell is connected as a single entity again, and make thin-walled metal-plastic composite pipe fitting.During with the seam seam of two lobe thin-wall metal cases, its specification requirement is higher, need drop into larger amt during welding with the supporting facilities such as manipulator of welding equipment, welding quality also be cannot say for sure card.
Summary of the invention
This pipe fitting that the present invention relates to is characterized in: form two lobe metal shells of composite tube of metal and plastic shell, a lobe wherein has flange, can block the slit between the two lobe metal shells behind the shell inclusion plastic pipe.After being placed on working of plastics in the two lobe metal shells,, the part of metal shell port surface flange is inwardly turned down, be close to the inwall of plastic pipe port and clamped plastic pipe, metal shell and plastic pipe are combined as a whole by simple punching press.Two lobe metal shells need not weld, and can pass through plastic pipe very easily, are connected to monolithic case.
The invention has the beneficial effects as follows: when the two lobe metal shells that plastic pipe is outer are connected to integral body, do not need welding by thin-wall metal case that technology and equipment are all had relatively high expectations, only need by simple punch process, can wrap in the outer and plastic pipe of plastic pipe and be combined into integral body, reduce the production cost of thin-walled metal-plastic composite pipe fitting.
Description of drawings
Fig. 1 is the structure chart of elbow.
Fig. 2 is the elbow finished figure.
Fig. 3 is that the port flange of pipe fitting shell has the inwall of double wedge, working of plastics that the elbow structure figure of groove is arranged.
Fig. 4 is that the port flange of pipe fitting shell has the inwall of double wedge, working of plastics that the elbow finished figure of groove is arranged
Fig. 5 is the threeway finished figure.
Fig. 6 is that the port flange double wedge of pipe fitting shell, the inwall of working of plastics have the threeway finished figure of groove
Fig. 7 is straight-through finished figure.
Fig. 8 is that the port flange of pipe fitting shell has the inwall of double wedge, working of plastics that the straight-through finished figure of groove is arranged
Fig. 9 is the four-way finished figure.
Figure 10 is that the port flange of pipe fitting shell has the inwall of double wedge, working of plastics that the four-way finished figure of groove is arranged
The specific embodiment
Below, with the specific embodiment the present invention is described in further detail in conjunction with the accompanying drawings:
Fig. 1 represents: the structure of pipe fitting has following characteristics:
Working of plastics: the internal diameter of plastic pipe strengthens in the part of tube part port, like this, after can making the flange of metal shell port surface dogleg section be fitted in the plastic pipe inwall, the diameter of this section of pipe fitting inner wall applying metal shell is moulded the external diameter of thin wall metal pipeline greater than the liner that is connected with this pipe fitting.When pipe fitting and liner were moulded thin wall metal pipeline and be connected, pipeline can pass this part of pipe fitting, is connected with the not lightening holes thermosol of pipe fitting;
Metal shell: in two lobes of metal shell.A lobe is wherein having the flange that can block slit between the two lobe shells on the faying face of two lobes.The flange broad of port surface, its reason be the part of flange after metal shell is wrapped working of plastics, also to inwardly turn down.With this part inwardly flange of turnover be close on the inwall of working of plastics and clamp working of plastics, metal shell can be fixed on the working of plastics.The part of flange inwardly turnover is fitted in the plastic pipe inwall, only needs can finish by the method for punch process.
Fig. 2 represents the finished figure of elbow: can see that the slit between the two lobe shells has been blocked by the flange of shell and can't see.Working of plastics is near the inwall of port internal diameter augmenting section, also by the partial occlusion of the inside turnover of shell end actinal surface flange.The inside turnover of two half-shells by the port surface flange clamps the tube wall of elbow port and is fixed on and becomes whole shell on the whole working of plastics.
Fig. 3 represents: the working of plastics of pipe elbow has groove near on the inwall of port internal diameter enlarged portion; The flange of metal shell port surface has double wedge.After metal shell was wrapped working of plastics, the double wedge of port surface flange part inwardly turnover was more easy.And the double wedge on the port surface flange is inwardly embedding in the groove of working of plastics after the turnover, and metal shell is more tight with combining of working of plastics.
Can see in the finished figure of the elbow that Fig. 4 represents: the slit between the two lobe shells, blocked by the flange of shell and can't see.The double wedge that inwardly turns down on the shell end actinal surface flange has also embedded in the groove on the working of plastics inwall, and metal shell and working of plastics closely are combined as a whole.Two lobe shells need not weld promptly and connect into whole shell on the whole working of plastics by being fixed on.
Fig. 5---the threeway among Figure 10, straight-through, four-way, its aufbauprinciple is identical with elbow, so repeat no more.
Claims (5)
1, a kind of manufacture method of thin-walled metal-plastic composite pipe fitting, be characterized in: the outer field metal shell of pipe fitting is made up of two lobes, after wrapping in the working of plastics of pipe fitting internal layer in the shell, two lobe metal shells inwardly turn down the inwall that is close to working of plastics by the part of port flange, make two lobe metal shells connect into whole shell on the unitary plastic part by being fixed on.
2, the metal shell of elbow in the tube manufacturing method, threeway, straight-through, four-way according to claim 1, be characterized in: a wherein lobe of two lobe metal shells has the flange that blocks the slit at the seam crossing of two lobe shells.
3, the metal shell of pipe elbow in the tube manufacturing method, threeway, straight-through, four-way according to claim 1 is characterized in: on the flange of metal shell port double wedge is arranged.
4, the working of plastics of pipe elbow in the tube manufacturing method, threeway, straight-through, four-way according to claim 1, be characterized in: the caliber of working of plastics strengthens at one section internal diameter by end face.
5, the working of plastics of pipe elbow in the tube manufacturing method, threeway, straight-through, four-way according to claim 1, be characterized in: at the internal diameter augmenting section of working of plastics, inwall has groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510056148 CN1836803A (en) | 2005-03-23 | 2005-03-23 | Welding-free thin wall metal envelope plastic composite tube and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510056148 CN1836803A (en) | 2005-03-23 | 2005-03-23 | Welding-free thin wall metal envelope plastic composite tube and its production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1836803A true CN1836803A (en) | 2006-09-27 |
Family
ID=37014390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510056148 Pending CN1836803A (en) | 2005-03-23 | 2005-03-23 | Welding-free thin wall metal envelope plastic composite tube and its production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1836803A (en) |
-
2005
- 2005-03-23 CN CN 200510056148 patent/CN1836803A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG YAYA PIPE INDUSTRY CO., LTD. Free format text: FORMER OWNER: WAN PINGHUA; APPLICANT Effective date: 20081121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20081121 Address after: Boshan village, Qixing Town, Zhejiang City, Jiaxing Province, China: 314000 Applicant after: Zhejiang bud bud special pipe industry Co., Ltd. Address before: Zip code 1, 1 unit, 2 unit, Xiangxiang garden, Xiangjiang garden, Xinghe commercial street, Xiaohe District, Guiyang, Guizhou, China: 1, 550009 Applicant before: Wan Ping Hua Co-applicant before: Shen Yuxuan Co-applicant before: Shen Wuyuan |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |