CN201909129U - Rubber-mat-free hot rotational moulding pipeline - Google Patents
Rubber-mat-free hot rotational moulding pipeline Download PDFInfo
- Publication number
- CN201909129U CN201909129U CN2010202526521U CN201020252652U CN201909129U CN 201909129 U CN201909129 U CN 201909129U CN 2010202526521 U CN2010202526521 U CN 2010202526521U CN 201020252652 U CN201020252652 U CN 201020252652U CN 201909129 U CN201909129 U CN 201909129U
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- China
- Prior art keywords
- rubber
- steel pipe
- rotational moulding
- pipeline
- mat
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- 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.)
- Expired - Fee Related
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model discloses a rubber-mat-free hot rotational moulding pipeline, which comprises a steel pipe, flanges and inner lining plastic, wherein two flanges are arranged at two ends of the steel pipe respectively; and the inner lining plastic is arranged in the steel pipe. The rubber-mat-free hot rotational moulding pipeline is characterized in that rubber synthetic materials are arranged on the flange surfaces and integrally formed with the inner lining plastic. Compared with the prior art, a gasket is not needed to be replaced, thereby reducing work amount and lowering maintenance cost on one hand, and at the same time, ensuring the safety and the reliability of the pipeline operation.
Description
Technical field:
The utility model relates to the plastics forming technical field, specifically is a kind of hot rotational moulding multiple tube.
Technical background
At present, injection moulding is with quantitative liquid or plastic paste adding mould or treats in the compound steel pipe, by to mould or treat the heating of compound steel pipe, roll and rotate, make the plastics fusion plastification, by the action of gravity of plastics self, be evenly distributed on mould or steel pipe inwall die cavity, can obtain the system of hollow after the curing to be cooled.The thickness of its rotomoulded articles is more even than extrusion-blow molding product, and fertilizer is few, and the product internal stress is little.Patent (02153091.2) name is called the flanged surface mould of steel-plastic composite pipe and roll moulding shaping technology and this technology special use, a kind of flanged (FLGD) steel-plastic composite pipe is disclosed, include on steel pipe and inwall thereof and the flanged surface and be lined with plastic layer, plastic layer on inner tube wall and the flanged surface all belongs to flange plastic seal table top and the plastic lining that the special flange face mould tool of the once unidirectional positive and negative rotary rotational molding forming technology of a usefulness and this technology is made, respectively be provided with a connecting ring with inner-walls of duct spot welding in its two-port of steel pipe, and 1 or 1 above quantity can be arranged between the pipe ends mouth and ring ring between connecting ring for equating, once unidirectional positive and negative rotary rotational molding forming of plastic layer on its flanged surface, the flange plastic seal table top that has special flange face mould tool to make.
Prior art is by the rotational moulding of mould realization flanged surface and plastic lining, but end face of flange flatness and thickness do not reach seal request, when mounted, to install the plastic cement pad additional between two flanges that pipeline joins, just can reach seal request, increase installation cost like this, maintenance workload is big.
Summary of the invention
Technical problem to be solved in the utility model is at above-mentioned the deficiencies in the prior art, by in the pipeline thermal rotational moulding course of working, on the sealing plane of piping flange, directly form a layer sealing surface, the sealing face combines together with inner lining material again, directly mentioning is the anticorrosion effect of sealing again, realizes exempting from when pipeline enclosure is installed rubber cushion.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of hot rotational moulding pipeline of rubber cushion of exempting from, comprise steel pipe, flange, plastic lining, described flange is two and is separately positioned on the two ends of steel pipe, described plastic lining is set in steel pipe, it is characterized in that: described flanged surface is provided with the rubber composite, and this rubber composite and described plastic lining are integral type.
The utility model passes through pipeline thermal rotationally molding course of working, and directly the end face of the rubber composite once-through of customization processing at piping flange, making plastic lining and sealing gasket melting is one, thereby directly plays the function of the sealing of pipeline.
Compared with prior art, the utility model has the advantages that: the utility model need not to install rubber sheet gasketing again, having changed that traditional plastics lined pipe road installs must the supporting history that installs gasket seal additional, because rubber sheet gasket is easily aging, every use also need be changed once in two to three years, and exempt from the hot rotational moulding pipeline of rubber cushion, owing to used the rubber and plastic composite, working life and pipe lining cover have realized that working life is synchronous, need not to change pad in the using process, saved engineering work load on the one hand, reduced maintenance cost, simultaneously, guarantee the Security and the reliability of pipeline operation again.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Reference character: 1, steel pipe, 2, flange, 3, plastic lining, 4, the rubber composite
Embodiment
Describe the technical solution of the utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of hot rotational moulding pipeline of rubber cushion of exempting from of the utility model, comprise steel pipe 1, flange 2, plastic lining 3 and rubber composite 4, the flange 2 that steel pipe 1 is fixedlyed connected with two ends is welded into pipeline configuration spare, after derusting by sandblasting is handled, workpiece is put into the channel oven heats, to the workpiece after the heating by hot rotational moulding processing technology to plastic lining 3 hot rotational moulding process, in hot rotational moulding process, inner lining material 3 and this rubber composite 4 are directly combined together with flange 2 phase-contact surfaces.
Claims (1)
1. exempt from the hot rotational moulding pipeline of rubber cushion for one kind, comprise steel pipe (1), flange (2), plastic lining (3), described flange (2) is two and is separately positioned on the two ends of steel pipe (1), described plastic lining (3) is set in steel pipe (1), it is characterized in that: described flange (2) face is provided with rubber composite (4), and this rubber composite (4) is an integral type with described plastic lining (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202526521U CN201909129U (en) | 2010-07-07 | 2010-07-07 | Rubber-mat-free hot rotational moulding pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202526521U CN201909129U (en) | 2010-07-07 | 2010-07-07 | Rubber-mat-free hot rotational moulding pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201909129U true CN201909129U (en) | 2011-07-27 |
Family
ID=44301330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202526521U Expired - Fee Related CN201909129U (en) | 2010-07-07 | 2010-07-07 | Rubber-mat-free hot rotational moulding pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201909129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805434A (en) * | 2016-05-20 | 2016-07-27 | 海安县区域供水有限公司 | Lining pipeline |
-
2010
- 2010-07-07 CN CN2010202526521U patent/CN201909129U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805434A (en) * | 2016-05-20 | 2016-07-27 | 海安县区域供水有限公司 | Lining pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20130707 |