CN102748539A - Dovetailing connecting co-extrusion heat-insulating liquid transporting pipe and manufacturing method thereof - Google Patents
Dovetailing connecting co-extrusion heat-insulating liquid transporting pipe and manufacturing method thereof Download PDFInfo
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- CN102748539A CN102748539A CN2011100957739A CN201110095773A CN102748539A CN 102748539 A CN102748539 A CN 102748539A CN 2011100957739 A CN2011100957739 A CN 2011100957739A CN 201110095773 A CN201110095773 A CN 201110095773A CN 102748539 A CN102748539 A CN 102748539A
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Abstract
The invention discloses a dovetailing connecting co-extrusion heat-insulating liquid transporting pipe which comprises an inner-layer liquid transporting pipe and an outer-layer heat-insulating pipe, wherein the inner-layer liquid transporting pipe and the outer-layer heat-insulating pipe are manufactured by adopting a co-extrusion manner; a dovetail groove or a convex rib is arranged on the outer wall of the inner-layer liquid transporting pipe; and the outer-layer heat-insulating pipe is embedded into the dovetail groove or the convex rib on the outer wall of the inner-layer liquid transporting pipe.
Description
Technical field;
The present invention relates to building, chemical industry, car and boat with pipe.
Background technique;
Patent 201020173314.9 " multi-layer co-extruded composite pipe " is made up of top layer (1), foaming layer (2) and barrier layer (3), and foaming layer (2) wraps in outside the barrier layer (3), and top layer (1) wraps in outside the foaming layer (2); Top layer (1), foaming layer (2) and barrier layer (3) are through being extruded as one.The utility model adopts top layer, foaming layer and the compound structure of extruding of barrier layer; Should have good barrier performance, thermal insulation property and sound insulation value by multiple layer extruding pipe, and have good working strength, and be suitable as water pipe and slot sleeve and use; But also the metallic dust that can in the top layer, distribute; It is attractive in appearance that the outward appearance of pipe shaft is rich in, and have anlistatig effect, is suitable as very much outdoor water pipe and uses; And this composite pipe low production cost, can be employed widely.The utility model is simple in structure, makes easily, and using effect is good.
The problem that above-mentioned patent exists; Because the material of top layer (1), foaming layer (2) and barrier layer (3) is different with density; When surface layer temperature and foaming layer and barrier layer temperature not simultaneously; The top layer is prone to produce transverse shrinkage with foaming layer and barrier layer separates and not isometric vertical contraction, reduces the working life of composite pipe.
Specific embodiments:
The objective of the invention is: 1, the outer thermal insulation pipe of the outer co-extrusion of internal layer indusion tube, thermal insulation property and the shock resistance and the sound insulation property of raising internal layer indusion tube.2, establish dovetail groove or convex tendon on the internal layer indusion tube outer wall, outer thermal insulation pipe is inlayed in the internal layer indusion tube outer wall dovetail groove or in the convex tendon groove, is prevented the outer thermal insulation pipe disengaging of internal layer indusion tube and outside co-extrusion.3, internal layer indusion tube outer wall dovetail groove edge or convex tendon process vertical gap; Outer thermal insulation pipe inlay on the internal layer indusion tube excircle in the dovetail groove or in the convex tendon groove with vertical gap in, solve internal layer indusion tube and the vertical synchronous problem of outside co-extrusion skin thermal insulation pipe.4, gluing between internal layer indusion tube and outer thermal insulation pipe improves join strength between internal layer indusion tube and outer thermal insulation pipe, reduces radial contraction.
The dovetail that the present invention proposes connects the co-extrusion heat preserving perfusion tube, comprising: the internal layer indusion tube, and outer thermal insulation pipe, internal layer indusion tube outer wall is established dovetail groove or convex tendon, and outer thermal insulation pipe is inlayed in the internal layer indusion tube outer wall dovetail groove or in the convex tendon groove.
For solving the vertical asynchronous shrinkage problems of the temperature difference that internal layer indusion tube and outside co-extrusion skin thermal insulation pipe produce because of material is different with density; Prefabricated internal layer indusion tube outer wall dovetail groove edge or convex tendon process vertical gap with gulleting machine; During co-extrusion, outer thermal insulation pipe inlay in internal layer indusion tube outer wall dovetail groove or the convex tendon groove with vertical gap in.
For solving the vertical asynchronous shrinkage problems of the temperature difference that internal layer indusion tube and outside co-extrusion skin thermal insulation pipe produce because of material is different with density; Prefabricated internal layer indusion tube outer wall dovetail groove or convex tendon process transverse groove, outer thermal insulation pipe inlay in internal layer indusion tube outer wall dovetail groove or the convex tendon groove with transverse groove in.
Internal layer indusion tube outer surface gluing, during co-extrusion, glue bonds together internal layer indusion tube and outer thermal insulation pipe, improves join strength between internal layer indusion tube and outer thermal insulation pipe, reduces radial contraction.
Be the corrosion resistance and the shock resistance of raising dovetail connection co-extrusion heat preserving perfusion tube, outer thermal insulation pipe outer surface co-extrusion protective coating, the co-extrusion protective coating comprises: PVC; PE, PP, PPR; ASA; PMMA, PVDF, the co-extrusion protective coating manufactures color tube or manufactures transparent tube with base-material through adding colorant.
The internal layer indusion tube comprises: PPR pipe, pvc pipe, PP pipe, PE pipe, fluorine plastic tube, Al-alloy pipe.
Outer thermal insulation pipe comprises: foaming PPR pipe, foaming PVC pipe, foaming PP pipe, foaming PE pipe, wood-plastic pipe.
Dovetail connects the co-extrusion heat preserving perfusion tube and comprises: pipe, square tube, perforated tube.
Dovetail connects the production method of co-extrusion heat preserving perfusion tube: 1, extrude the internal layer indusion tube that outer wall has dovetail groove with extruder; 2, with processing machine internal layer indusion tube outer wall dovetail groove edge rollers is extruded a plurality of transverse teeth mouths or transverse groove; 3, extruder is having the outer thermal insulation pipe of a plurality of dovetail groove transverse teeth mouths or transverse groove internal layer indusion tube outer surface co-extrusion.
Embodiment:
Embodiment 1:
Internal layer indusion tube and outer co-extrusion thermal insulation pipe end-face structure figure are as shown in Figure 1, wherein: the 1st, internal layer indusion tube, the 2nd, internal layer indusion tube dovetail groove, the 3rd, outer thermal insulation pipe, the 4th, cold junction skin protective layer.When extruder was extruded, outer thermal insulation pipe 3 was inlayed in the internal layer indusion tube dovetail groove 2, and internal layer indusion tube 1 and outer thermal insulation pipe 3 are combined into one.
Embodiment 2:
Have gap internal layer indusion tube and outer co-extrusion thermal insulation pipe end-face structure figure is as shown in Figure 2, wherein: the 5th, the internal layer indusion tube, the 6th, internal layer indusion tube dovetail groove, the 7th, internal layer indusion tube transverse teeth mouth, the 8th, be outer thermal insulation pipe, the 9th, external protection.During making; At first extrude the internal layer indusion tube 5 that outer wall has dovetail groove with extruder; With gulleting machine internal layer indusion tube 5 outer wall dovetail grooves 6 edge rollers are extruded a plurality of transverse teeth mouths 7; The internal layer indusion tube 5 that will have a plurality of transverse teeth mouths 7 is sent into and is extruded the secondary mould, and extruder is having outer thermal insulation pipes 8 of a plurality of dovetail groove transverse teeth mouth internal layer indusion tube 5 outer surface co-extrusions and external protection 9.
Embodiment 3:
Have rectangle groove internal layer indusion tube and outer co-extrusion thermal insulation pipe end-face structure figure is as shown in Figure 3, wherein: the 10th, the internal layer indusion tube, the 11st, internal layer indusion tube dovetail groove, the 12nd, the horizontal rectangle groove of internal layer indusion tube, the 13rd, be outer thermal insulation pipe, the 14th, external protection.During making; At first extrude the internal layer indusion tube 10 that outer wall has dovetail groove with extruder; With processing machine with processing a plurality of horizontal rectangle grooves 12 on the internal layer indusion tube 10 outer wall dovetail grooves 11; The internal layer indusion tube 10 that will have a plurality of horizontal rectangle grooves 12 is sent into and is extruded the secondary mould, and extruder is having outer thermal insulation pipe 13 of the horizontal rectangle groove internal layer of a plurality of dovetail grooves indusion tube 10 outer surface co-extrusions and external protection 14.
Description of drawings:
Below in conjunction with accompanying drawing and embodiment, the present invention is further described.
Fig. 1 has characteristic internal layer indusion tube of the present invention and outer co-extrusion thermal insulation pipe end-face structure figure.
Fig. 2 has characteristic of the present invention to have gap internal layer indusion tube and outer co-extrusion thermal insulation pipe end-face structure figure.
Fig. 3 has characteristic of the present invention to have rectangle groove internal layer indusion tube and outer co-extrusion thermal insulation pipe end-face structure figure.
Claims (8)
1. dovetail connects the co-extrusion heat preserving perfusion tube; Comprise: the internal layer indusion tube, outer thermal insulation pipe is characterized in that: internal layer indusion tube and outer thermal insulation pipe co-extrusion are made; Internal layer indusion tube outer wall is established dovetail groove or convex tendon, and outer thermal insulation pipe is inlayed in the internal layer indusion tube outer wall dovetail groove or in the convex tendon groove.
2. dovetail as claimed in claim 1 connects the co-extrusion heat preserving perfusion tube, and it is characterized in that: internal layer indusion tube outer wall dovetail groove edge or convex tendon process vertical gap, outer thermal insulation pipe inlay in internal layer indusion tube outer wall dovetail groove or the convex tendon groove with vertical gap in.
3. dovetail as claimed in claim 1 connects the co-extrusion heat preserving perfusion tube, and it is characterized in that: internal layer indusion tube outer wall dovetail groove or convex tendon process transverse groove, outer thermal insulation pipe inlay in internal layer indusion tube outer wall dovetail groove or the convex tendon groove with transverse groove in.
4. dovetail as claimed in claim 1 connects the co-extrusion heat preserving perfusion tube, it is characterized in that: outer thermal insulation pipe outer surface set up defences sheath or cold junction skin protective layer.
5. dovetail as claimed in claim 1 connects the co-extrusion heat preserving perfusion tube, and it is characterized in that: the internal layer indusion tube comprises: Al-alloy pipe, PPR pipe, pvc pipe, PP pipe, PE pipe, fluorine plastic tube.
6. dovetail as claimed in claim 1 connects the co-extrusion heat preserving perfusion tube, and it is characterized in that: outer thermal insulation pipe comprises: foaming PPR pipe, foaming PVC pipe, foaming PP pipe, foaming PE pipe, wood-plastic pipe.
7. dovetail as claimed in claim 1 connects the co-extrusion heat preserving perfusion tube, it is characterized in that: dovetail connects the co-extrusion heat preserving perfusion tube and comprises: pipe, square tube, perforated tube.
8. dovetail connects the production method of co-extrusion heat preserving perfusion tube: 1, extrude the internal layer indusion tube that outer wall has dovetail groove with extruder; 2, with processing machine internal layer indusion tube outer wall dovetail groove edge rollers is extruded a plurality of transverse teeth mouths or transverse groove; 3, extruder is having the outer thermal insulation pipe of a plurality of dovetail groove transverse teeth mouths or transverse groove internal layer indusion tube outer surface co-extrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100957739A CN102748539A (en) | 2011-04-18 | 2011-04-18 | Dovetailing connecting co-extrusion heat-insulating liquid transporting pipe and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100957739A CN102748539A (en) | 2011-04-18 | 2011-04-18 | Dovetailing connecting co-extrusion heat-insulating liquid transporting pipe and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN102748539A true CN102748539A (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100957739A Pending CN102748539A (en) | 2011-04-18 | 2011-04-18 | Dovetailing connecting co-extrusion heat-insulating liquid transporting pipe and manufacturing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455921A (en) * | 2014-12-05 | 2015-03-25 | 常熟市贝特机电制造有限公司 | Pipe material |
| CN106594411A (en) * | 2017-01-03 | 2017-04-26 | 上海瑞皇管业科技有限公司 | Polyethylene polypropylene reinforced composite double-wall corrugated pipe |
| CN109531957A (en) * | 2019-01-23 | 2019-03-29 | 戴元庆 | The multi-layer co-extrusion blow molding die head of multi-layer heat preserving expandable plastic film |
| CN114942499A (en) * | 2022-07-20 | 2022-08-26 | 长飞光纤光缆股份有限公司 | Optical unit of PC/PBT composite loose tube, preparation method thereof, forming die and optical cable |
-
2011
- 2011-04-18 CN CN2011100957739A patent/CN102748539A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455921A (en) * | 2014-12-05 | 2015-03-25 | 常熟市贝特机电制造有限公司 | Pipe material |
| CN104455921B (en) * | 2014-12-05 | 2016-08-24 | 常熟市贝特机电制造有限公司 | A kind of tubing |
| CN106594411A (en) * | 2017-01-03 | 2017-04-26 | 上海瑞皇管业科技有限公司 | Polyethylene polypropylene reinforced composite double-wall corrugated pipe |
| CN106594411B (en) * | 2017-01-03 | 2020-02-07 | 上海瑞皇管业科技股份有限公司 | Polyethylene polypropylene reinforced composite double-wall corrugated pipe |
| CN109531957A (en) * | 2019-01-23 | 2019-03-29 | 戴元庆 | The multi-layer co-extrusion blow molding die head of multi-layer heat preserving expandable plastic film |
| CN109531957B (en) * | 2019-01-23 | 2023-06-16 | 戴元庆 | Multilayer coextrusion blow molding die head of multilayer heat-insulating inflatable plastic film |
| CN114942499A (en) * | 2022-07-20 | 2022-08-26 | 长飞光纤光缆股份有限公司 | Optical unit of PC/PBT composite loose tube, preparation method thereof, forming die and optical cable |
| CN114942499B (en) * | 2022-07-20 | 2022-11-04 | 长飞光纤光缆股份有限公司 | Optical unit with PC/PBT composite loose tube, preparation method thereof, forming die and optical cable |
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Application publication date: 20121024 |