CN1724918A - Aluminium plastic composite pipe and its manufacturing method - Google Patents
Aluminium plastic composite pipe and its manufacturing method Download PDFInfo
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- CN1724918A CN1724918A CN 200510021209 CN200510021209A CN1724918A CN 1724918 A CN1724918 A CN 1724918A CN 200510021209 CN200510021209 CN 200510021209 CN 200510021209 A CN200510021209 A CN 200510021209A CN 1724918 A CN1724918 A CN 1724918A
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Abstract
The invention is an aluminum plastic composite tube and the preparing method. The said aluminum plastic composite tube contains an aluminum tape layer between high molecular plastic layers and such the characters of arranging a plurality of holes on the aluminum tape, containing a hot melt glue adhesive layer between the high molecular plastic layer and the aluminum tape layer, and adding additive crylic acid to the molecular plastics. The preparing method has the characters: firstly holing the aluminum tape, heating and determining the diameter and aligning the welding line and then welding into a tube; then fully mixing high molecular plastics, crylic acid and fillings, heating and extruding the high molecular plastic polymer to make inner plastic tube and outer plastic tube; feeding the inner and outer plastic tubes together with the holed aluminum tube uniformly coated with polypropylene hot melt glue into the die cavity of an extrusion head; heating to raise temperature and pressure, and then completing the copolymerization reaction at constant temperature and pressure. The invention improves the strength, low-temperature resisting performance, and cold-hot resistant alternative performance of the tubing by changing the structural form of the composite, able to better prohibit the swelling caused by hydrocarbon oil soaking.
Description
Technical field
The invention belongs to the aluminium plastic composite material field, be specifically related to a kind of aluminium-plastic composite pipe and preparation method thereof.The present invention can substitute existing steel pipe, copper pipe, nylon tube, rubber pipe, is adapted to the use under the severe environmental conditions.
Background technique
Aluminium-plastic composite pipe has good performance, has wide range of applications.But existing conventional aluminium plastic composite is to be made of plastics-aluminium band-plastics mostly, the intermediate interface coated with thermosol, coextru-lamination forms through extruder, its low-temperature working effect is bad, cold-resistant hot Alternating Test poor performance, long-time transferring hydrocarbons can produce the swelling phenomenon when oily, has limited the application of aluminium-plastic composite pipe in automobile, engineering field.
Chinese patent (publication number CN2612859, patent No. ZL03230313.0) discloses the patent of invention technology of invention and created name for " aluminium-plastic composite pipe that a kind of aluminium net strengthens ".Offer sieve aperture on the aluminium framework layer in the middle of being characterized in, adhesive layer, the outer adhesive layer of hot melt adhesive can be worn (lead to) and cross sieve (net) hole on the framework layer in the hot melt adhesive, make these two heat crucible zones continuous each other, the adhesion intensity of having reinforced interlayer structure.Its deficiency is that the compressive strength of middle aluminium framework layer is poor, still is difficult to satisfy the needs of low-temperature working.
Summary of the invention
At bad, the cold-resistant hot Alternating Test poor performance of above-mentioned low-temperature working effect of existing aluminium-plastic composite pipe existence, the deficiency of compressive strength difference, the invention provides a kind of aluminium-plastic composite pipe and preparation method thereof.Aluminium-plastic composite pipe of the present invention can use under the abominable working environment of low temperature, and cold-resistant hot Alternating Test performance is good, the compressive strength height.
A kind of aluminium-plastic composite pipe of the present invention comprises: high molecule plastic material layer, aluminium strip layer and bonding dose of layer of hot melt adhesive, between the high molecule plastic material layer, contain the aluminium strip layer, aluminium strip is provided with a plurality of holes, between high molecule plastic material layer and the aluminium strip layer adhesives layer is arranged, in the high molecule plastic material, add additive acrylic acid.
Hole on the aluminium strip is one or more in circular, square, oval, triangle or other shape.
Hole on the aluminium strip is the combination at random in circular, square, oval, triangle or other shape.
Preparation the present invention used high molecule plastic material can adopt a kind of in high density polyethylene (HDPE), polypropylene, polyester, the polystyrene; Hot melt adhesive adopts the polypropylene thermal melten gel for bonding dose.
The used aluminium strip of preparation the present invention adopts the aluminium strip of thickening type, and the thickness that increases 0.1mm～0.2mm than common aluminium strip is better.
The used plastic additive of preparation the present invention is 3%～8% acrylic acid solution.
Aluminium strip punches by following rule: the aperture of porose aluminium strip is 5mm～8mm, and cross-drilled hole is arranged as the equal distance in three holes, and the vertical core spacing is about 3 times of cross-drilled hole spacing.
The spacing of arranging in the pore size shape on the aluminium strip, hole can be carried out suitable adjustment or variation according to the variation of caliber size.
The preparation method of a kind of aluminium-plastic composite pipe of the present invention, its characteristics are may further comprise the steps:
A) earlier aluminium strip is punched by certain rule of arranging;
B) aluminium strip becomes the aluminium semicanal via pre-shaping mechanism;
C) aluminium semicanal heater via is heated to about 200 ℃, and pipe die sizing opposite joint is processed into depanning behind the aluminum pipe in entering then, is welded into pipe;
D) high molecule plastic material, acrylic acid are fully mixed with filler, be heated to 160 ℃～170 ℃, extrude through extruder;
E) the plastics high molecular polymer of extruding is extruded internal plastic tube with interior pipe die, the while blowing out pressurised air is internally moulded enlargement of pipe and is exerted pressure;
F) the plastics high molecular polymer extruded is extruded with outer pipe die moulded pipe outward, outer glue is moulded outward be coated on the aluminum pipe outer wall;
G) the polypropylene thermal melten gel is uniformly coated on the inside and outside wall of porose aluminum pipe;
H) with internal plastic tube, mould pipe outward and enter in the die cavity of co-extrusion die head with the porose aluminum pipe that evenly is coated with the polypropylene thermal melten gel;
I) in the die cavity, about heat temperature raising to 210 ℃, boost to more than the 6Mpa, constant temperature, constant voltage 1～5 hour are finished the copolyreaction moulding;
J) after tubing is finished the copolyreaction moulding, adopt circulating water cooling mode to be cooled to room temperature, deposited again 5～12 hours, finish cross-linking reaction.
Aluminium-plastic composite pipe of the present invention adopts the aluminium strip layer that has a plurality of holes, makes its structural type change into " decentralized " complex form by " stratiform " complex form of conventional aluminium plastic composite, has improved the combined strength bination of aluminium-plastic composite pipe and the toughness of tubing self.Adopt after the porose aluminium strip layer, participating in each compound component lumps together by " hole ", their the compound adhesive bonds that do not only depend on, also have matrix and strengthen inhibition that body produces each other by hole, contend with and rely on, thereby strengthened cohesion between each component, improved the integrity of tubing self.
The present invention is soaked generation swelling phenomenon in order to suppress plastic substrate for a long time by hydrocarbon-type oil, at the plastic substrate elder generation adding acrylic acid that is used for preparing aluminium-plastic composite pipe, the macromolecular material generation copolyreaction of acrylic acid and plastic substrate in the process of High Temperature High Pressure compound molding then, form the bigger polymer of molecular weight, plastic substrate by passive by adhesive bonds, become and initiatively participate in reaction and bonding, compact more orderly being coated on around the porose aluminium strip of the big molecule of polymer line style that reaction and bonding form, porose aluminium strip and plastic substrate more closely are combined into an integral body, thereby have increased the ability that opposing swelling phenomenon takes place.
The present invention is by adopting porose aluminium strip and add acrylic acid in plastic matrix, changed the structural type of aluminium plastic composite material, improved the mechanical property of tubing self, the resistance to low temperature and the cold-resistant hot alternation performance of tubing have been improved, can suppress swelling phenomenon preferably through the generation of hydrocarbon-type oil long period of soaking, its the ring stress and radially compressive strength all apparently higher than existing aluminium-plastic composite pipe its minimum serviceability temperature is reduced to about 50 ℃; The present invention is applicable to pipe-line systems such as cold and hot plumbing in the fields such as automotive industry, civil engineering construction, heating, combustion gas, fuel delivery, also can be used for the use under other lower temperature environments condition.
Embodiment
Embodiment 1
The used high molecule plastic material material of preparation the present invention adopts high density polyethylene (HDPE), binder adopts the polypropylene thermal melten gel, employing is than the aluminium strip of the thickening type of common aluminium strip increase 0.2mm, and the hole on the aluminium strip is circular, and plastic additive employing concentration is 5% acrylic acid solution.
The preparation process of aluminium-plastic composite pipe may further comprise the steps:
A) earlier aluminium strip is punched by certain rule of arranging, be rolled into tubulose then, through being welded into porose aluminum pipe;
B) aluminium strip finish through unreeling machine, tape splicing machine and storage cassette holder unreel, tape splicing and storage band;
C) aluminium strip becomes the aluminium semicanal via the pre-shaping mechanism of installing on the jig;
D) the aluminium semicanal enters interior pipe die then through about the heater heats to 200 on the jig ℃;
E) aluminium semicanal depanning after interior pipe die sizing opposite joint is processed into aluminum pipe is welded into pipe;
F) high density polyethylene (HDPE), acrylic acid are fully mixed with filler, be heated to about 170 ℃, extrude through extruder;
G) the plastics high molecular polymer of extruding is extruded internal plastic tube with interior pipe die, the while blowing out pressurised air is internally moulded enlargement of pipe and is exerted pressure;
H) the plastics high molecular polymer of extruding is extruded the outer pipe of moulding with outer pipe die; Outer glue moulded outward be coated on the aluminum pipe outer wall;
I) the polypropylene thermal melten gel is uniformly coated on the inside and outside wall of porose aluminum pipe;
J) with internal plastic tube, mould pipe outward and enter in the die cavity of co-extrusion die head with the porose aluminum pipe that evenly is coated with the polypropylene thermal melten gel;
K) in the die cavity, about heat temperature raising to 210 ℃, boost to more than the 6Mpa, constant temperature, constant voltage 3 hours are finished the copolyreaction moulding;
L) after tubing is finished the copolyreaction moulding, adopt circulating water cooling mode to be cooled to room temperature, deposited again 8 hours, finish cross-linking reaction.
Embodiment 2
The used high molecule plastic material material of preparation the present invention adopts polypropylene PP-R, binder adopts the polypropylene thermal melten gel, employing is than the aluminium strip of the thickening type of common aluminium strip increase 0.1mm, and the hole on the aluminium strip is a triangle, and plastic additive employing concentration is 3% acrylic acid solution.
Preparation process is the same substantially, wherein step k) in the die cavity, about heat temperature raising to 220 ℃, boost to 6Mpa, constant temperature, constant voltage 5 hours are finished the copolyreaction moulding; Step 1) adopts circulating water cooling mode to be cooled to room temperature after tubing is finished the copolyreaction moulding, deposits 10 hours again, finishes cross-linking reaction.
Embodiment 3
The used high molecule plastic material material of preparation the present invention adopts polystyrene, binder adopts the polypropylene thermal melten gel, employing increases the aluminium strip of the thickening type of 0.2mm than common aluminium strip, hole on the aluminium strip is square, oval alternately arrangement, and plastic additive employing concentration is 8% acrylic acid solution.
Preparation process is the same substantially, wherein step k) in the die cavity, about heat temperature raising to 210 ℃, boost to 6Mpa, constant temperature, constant voltage 3 hours are finished the copolyreaction moulding; Step 1) adopts circulating water cooling mode to be cooled to room temperature after tubing is finished the copolyreaction moulding, deposits 6 hours again, finishes cross-linking reaction.
Claims (7)
1. aluminium-plastic composite pipe, it is characterized in that: comprise the bonding layer of high molecule plastic material layer, aluminium strip layer and hot melt adhesive, between the high molecule plastic material layer, contain the aluminium strip layer, aluminium strip is provided with a plurality of holes, the bonding layer of hot melt adhesive is arranged between high molecule plastic material layer and the aluminium strip layer, wherein add additive acrylic acid in the high molecule plastic material.
2. a kind of aluminium-plastic composite pipe according to claim 1 is characterized in that: the hole on the aluminium strip of described aluminium strip layer is in circular, square, oval, triangle or other shape one or more.
3. a kind of aluminium-plastic composite pipe according to claim 1 is characterized in that: the hole on the aluminium strip of described aluminium strip layer is the combination at random in circular, square, oval, triangle or other shape.
4. a kind of aluminium-plastic composite pipe according to claim 1 is characterized in that: described high molecule plastic material adopts a kind of in high density polyethylene (HDPE), polypropylene, polyester, the polystyrene; Binder adopts the polypropylene thermal melten gel.
5. a kind of aluminium-plastic composite pipe according to claim 3 is characterized in that: described aluminium strip adopts the aluminium strip of thickening type.
6. a kind of aluminium-plastic composite pipe according to claim 3 is characterized in that: described plastic additive is 3%～8% acrylic acid solution.
7. the preparation method of the aluminium-plastic composite pipe of a claim 1, its characteristics are may further comprise the steps:
A) earlier aluminium strip is punched by certain rule of arranging;
B) aluminium strip becomes the aluminium semicanal via pre-shaping mechanism;
C) aluminium semicanal heater via is heated to about 200 ℃, and pipe die sizing opposite joint is processed into depanning behind the aluminum pipe in entering then, is welded into pipe;
D) high molecule plastic material, acrylic acid are fully mixed with filler, be heated to 160 ℃～170 ℃, extrude through extruder;
E) the plastics high molecular polymer of extruding is extruded internal plastic tube with interior pipe die, the while blowing out pressurised air is internally moulded enlargement of pipe and is exerted pressure;
F) the plastics high molecular polymer extruded is extruded with outer pipe die moulded pipe outward, outer glue is moulded outward be coated on the aluminum pipe outer wall;
G) the polypropylene thermal melten gel is uniformly coated on the inside and outside wall of porose aluminum pipe;
H) with internal plastic tube, mould pipe outward and enter in the die cavity of co-extrusion die head with the porose aluminum pipe that evenly is coated with the polypropylene thermal melten gel;
I) in the die cavity, about heat temperature raising to 210 ℃, boost to more than the 6Mpa, constant temperature, constant voltage 1～5 hour are finished the copolyreaction moulding;
J) after tubing is finished the copolyreaction moulding, adopt circulating water cooling mode to be cooled to room temperature, deposited again 5～12 hours, finish cross-linking reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100212097A CN1302221C (en) | 2005-07-01 | 2005-07-01 | Aluminium plastic composite pipe and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100212097A CN1302221C (en) | 2005-07-01 | 2005-07-01 | Aluminium plastic composite pipe and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1724918A true CN1724918A (en) | 2006-01-25 |
| CN1302221C CN1302221C (en) | 2007-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100212097A Expired - Fee Related CN1302221C (en) | 2005-07-01 | 2005-07-01 | Aluminium plastic composite pipe and its manufacturing method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608720B (en) * | 2008-06-19 | 2012-11-14 | 上海爱康新型建材有限公司 | PP-R stabi composite pipe and split handpiece structure for manufacturing same |
| CN103114649A (en) * | 2013-01-16 | 2013-05-22 | 孙经尧 | Manufacture and application of aluminum plastic composite material light structure building and earthquake isolation device thereof |
| CN108302260A (en) * | 2017-12-21 | 2018-07-20 | 安徽中电气有限公司 | A kind of aluminum plastic composite pipe and its processing method |
| CN108329555A (en) * | 2017-12-21 | 2018-07-27 | 安徽中电气有限公司 | A kind of processing method of low temperature resistant aluminum plastic composite pipe |
| CN110861331A (en) * | 2019-11-19 | 2020-03-06 | 樊伟 | Manufacturing method of aluminum butt welding type composite pipe |
| CN110877466A (en) * | 2019-11-19 | 2020-03-13 | 樊伟 | Manufacturing method of corrosion-resistant composite pipe |
| WO2021120440A1 (en) * | 2019-12-18 | 2021-06-24 | 安徽森泰木塑集团股份有限公司 | Composite profile |
| CN114147084A (en) * | 2021-11-09 | 2022-03-08 | 湖北塑金复合材料有限责任公司 | Gluing and punching aluminum strip for composite pipe and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333440A (en) * | 2000-07-12 | 2002-01-30 | 长沙市圆通实业有限公司 | Five-stage production technology for aluminium-plastics combined pipe |
| CN1140399C (en) * | 2000-11-14 | 2004-03-03 | 青岛绿华塑料机械有限公司 | Manufacture of composite aluminium-plastic pipe and aluminium pipe orienting and fitting unit |
| CN2612860Y (en) * | 2003-03-31 | 2004-04-21 | 义乌市洁康管业有限公司 | Random copolymerized polypropene compound tube |
| CN2612859Y (en) * | 2003-04-09 | 2004-04-21 | 骆光勤 | A aluminum net reinforced aluminum-plastic compound pipe |
-
2005
- 2005-07-01 CN CNB2005100212097A patent/CN1302221C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608720B (en) * | 2008-06-19 | 2012-11-14 | 上海爱康新型建材有限公司 | PP-R stabi composite pipe and split handpiece structure for manufacturing same |
| CN103114649A (en) * | 2013-01-16 | 2013-05-22 | 孙经尧 | Manufacture and application of aluminum plastic composite material light structure building and earthquake isolation device thereof |
| CN103114649B (en) * | 2013-01-16 | 2016-03-16 | 孙经尧 | A kind of construction method of the aluminium plastic composite material lightweight structures building containing seismic isolation apparatus |
| CN108302260A (en) * | 2017-12-21 | 2018-07-20 | 安徽中电气有限公司 | A kind of aluminum plastic composite pipe and its processing method |
| CN108329555A (en) * | 2017-12-21 | 2018-07-27 | 安徽中电气有限公司 | A kind of processing method of low temperature resistant aluminum plastic composite pipe |
| CN110861331A (en) * | 2019-11-19 | 2020-03-06 | 樊伟 | Manufacturing method of aluminum butt welding type composite pipe |
| CN110877466A (en) * | 2019-11-19 | 2020-03-13 | 樊伟 | Manufacturing method of corrosion-resistant composite pipe |
| WO2021120440A1 (en) * | 2019-12-18 | 2021-06-24 | 安徽森泰木塑集团股份有限公司 | Composite profile |
| CN114147084A (en) * | 2021-11-09 | 2022-03-08 | 湖北塑金复合材料有限责任公司 | Gluing and punching aluminum strip for composite pipe and preparation method thereof |
| CN114147084B (en) * | 2021-11-09 | 2024-04-30 | 湖北塑金复合材料有限责任公司 | Gluing and punching aluminum strip for composite pipe and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1302221C (en) | 2007-02-28 |
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Granted publication date: 20070228 |