CN105186408A - Aluminium-plastic composite tube for cable and preparation method thereof - Google Patents
Aluminium-plastic composite tube for cable and preparation method thereof Download PDFInfo
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Abstract
The invention relates to an aluminium-plastic composite tube for a cable. The tube comprises a first plastic layer, a bonding layer, an aluminium alloy layer, and a second plastic layer successively from inside to outside. The elongation rate of the aluminium alloy layer is larger than 10%, the tensile strength is larger than 150MPa, and the rigidity is 40 to 50HV. According to the invention, the aluminium-plastic composite tube can be used as a cable casing tube of an automobile, thereby reducing the weight of the automobile body; a certain shielding effect on the electromagnetic interference can be realized; the corrosion-resistant and anti-rust performances are excellent; and the service life is long. Because no bonding layer is arranged between the aluminium alloy layer and the second plastic layer, the second plastic layer at the surface of the mounting port can be stripped easily, so that installation becomes convenient.
Description
Technical field
The invention belongs to automobile cable protection field, be specifically related to a kind of PAP of cable.
Background technology
Body lightening is an important research aspect of new-energy automobile, under the guarantee intensity of automobile and the prerequisite of security performance, reduces the kerb weight of automobile as much as possible, can improve the power of automobile, reduces fuel consumption, reduces exhaust pollution.This just means that new-energy automobile should adopt light material to greatest extent, as aluminium, plastics etc.Leader cable sleeve pipe is the indispensable parts of automobile, prevents power line generation broken string from causing short circuit accident, and protection automobile cable etc. are not damaged, and play certain shielding action to the interference of electromagnetic field yet.Conventional fuel oil automobile uses metal sleeve mostly, although good to the protected effect of cable, anti-slungshot impact capacity is strong; good resistance is had to rugged environment; but metal tube is heavier, tare can be increased undoubtedly, and Long-Time Service also can face the etching problem of metal tube.
PAP combines the strong point of metal tube and plastic tube, can bend arbitrarily and not rebound deformation, saving a large amount of elbow and other accessory, without the need to carrying out anticorrosion, antirust treatment, and there is the advantages such as high-low temperature resistant, withstand voltage, corrosion-resistant, light weight, high-strength, anti-gas osmosising.But existing PAP is five-layer structure, and outer layer plastic and aluminium lamination have PUR bonding, be unfavorable in use procedure peeling off.Existing PAP outer layer plastic is necessary for the polyethylene of tubing level, and melt strength is higher, if outer layer plastic is bonding without PUR with aluminium lamination in the process of colding and heat succeed each other, causes easy absciss layer to come off.In addition, existing PAP, hardness and tensile strength low, rigidity does not far reach the requirement of automobile cable protecting pipe.
Summary of the invention
In view of this, be necessary to provide a kind of cable PAP in fact.
In addition, there is a need to the preparation method that this PAP a kind of is provided.
Object of the present invention, is achieved through the following technical solutions:
A kind of cable PAP, it comprises the first plastic layer, adhesive layer, aluminium alloy layer and the second plastic layer from the inside to the outside successively; The elongation of described aluminium alloy layer is greater than 10%, and tensile strength is greater than 150MPa, and hardness is 40-50HV.
Preferably, described aluminium alloy layer through solution strengthening process, wherein, by fine aluminium high temperature melting, add Mn, Mg, Si, Fe, Cu, make it form aluminium base solid solution, then by process after alloy at 350 DEG C of the high temperature anneal 4-12h, make its elongation be greater than 10%, tensile strength is greater than 150MPa.
Preferably, described first plastic layer and the second plastic layer are made up of the component of following weight portion: 95 parts of low-density crosslinked polyethylenes, 5 parts of catalyst, 0-5 part weatherable master batch, 15-20 part fire-retardant master granule, 3 parts of Masterbatch.
Preferably, the melt strength of described low-density crosslinked polyethylene is 2-5mN, is more preferably 4mN.
Preferably, the adhesive that described adhesive layer is used is PUR.
Preferably, described catalyst is take polyethylene as the organic tin compound of carrier.
Preferably, described aluminium alloy layer comprises the component of following weight fraction: 0.5-0.8%Mn, 0.1-0.3%Mg, 0.4-0.7%Si, 0.5-0.9%Fe, 0.05-0.2%Cu, and Al content is greater than 97%.
A preparation method for cable PAP, described method comprises:
By aluminium alloy by preformation forming roll, curling gradually by sheet, through format roll, be coated on outside format roll; With ultrasonic welding machine, the aluminum alloy lapped place be coated on outside format roll is welded into aluminium-alloy pipe, welder power is 30-50%, and weldering pressure is 0.6-1.2V;
Low-density crosslinked polyethylene, catalyst, fire-retardant master granule, weatherable master batch and Masterbatch are mixed, fully stir 10-20min with homogenizer, be fed in described second plastic layer extruder, barrel temperature is 150-180 DEG C;
Put into by PUR in adhesive layer extruder, processing temperature is 180-210 DEG C;
By low-density crosslinked polyethylene, catalyst, fire-retardant master granule, Masterbatch mixing, fully stir 10-20min with homogenizer, then put in the first plastic layer extruder, barrel temperature is 150-180 DEG C;
Composite die is connected with adhesive layer extruder with the first plastic layer extruder, format roll with combine mould and be connected, first plastic layer plastic melt and tack coat melt are through combining mould to format roll, extrude and to be propped up by compressed air afterwards, be close to aluminum pipe inwall, be shaped to the first plastic layer and adhesive phase;
Aluminum pipe, through the second plastic layer mould, is extruded through the second plastic layer extruder, is shaped to the second plastic layer;
Each layer is one-step shaping above, after cooling and shaping, obtains described cable PAP.
Preferably, described aluminium alloy layer through solution strengthening process, wherein, by fine aluminium high temperature melting, add Mn, Mg, Si, Fe, Cu, make it form aluminium base solid solution, then by process after alloy at 350 DEG C of the high temperature anneal 4-12h, make its elongation be greater than 10%, tensile strength is greater than 150MPa.
Preferably, the elongation of obtained described aluminium alloy layer is greater than 10%, and tensile strength is greater than 150MPa.
Preferably, the melt strength of described low-density crosslinked polyethylene is 2-5mN.
Compared with prior art, the present invention has the following advantages:
1) PAP of the present invention can be used as the cable sleeve of automobile, alleviates the weight of vehicle body; For electromagnetic interference, there is certain shielding action; There is good decay resistance and rustless property simultaneously, long service life.
2) PAP of the present invention owing to not arranging adhesive layer between aluminium alloy level second plastic layer, when mounted, is easy to the second plastic layer peelling off installation end oral thermometer face, thus greatly facilitate its installation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the cable PAP of present pre-ferred embodiments.
List the Reference numeral of all parts of the present invention below:
100-PAP
10-the first plastic layer
30-adhesive layer
50-aluminium alloy layer
70-the second plastic layer
Embodiment
Below in conjunction with specific embodiment, the present invention is more specifically described in detail, but embodiments of the present invention are not limited thereto, for the technological parameter do not indicated especially, can refer to routine techniques and carry out.
Refer to Fig. 1, the cable PAP 100 of present pre-ferred embodiments, it comprises the first plastic layer 10, adhesive layer 30, aluminium alloy layer 50 and the second plastic layer 70 from the inside to the outside successively.PAP 100 of the present invention described aluminium alloy layer by layer 50 and described second plastic layer 70 between do not use adhesive, can be easy to just peel described second plastic layer 70 off.During installation, just can peel off the second plastic layer 70 of PAP 100 end easily, be convenient to the installation of PAP 100.The PAP 100 of the present embodiment, for automobile cable sleeve pipe, can alleviate the weight of vehicle body, have shielding action for electromagnetic interference, has good decay resistance and rustless property, long service life.
In the preferred embodiment, described first plastic layer 10 and the second plastic layer 70 are made up of the component of following weight portion: 95 parts of low-density crosslinked polyethylenes, 5 parts of catalyst, 0-5 part weatherable master batch, 15-20 part fire-retardant master granule, 3 parts of Masterbatch.
Preferably, the melt strength of described low-density crosslinked polyethylene is 2-5mN, is more preferably 4mN.The present invention is by the selection to low-density crosslinked polyethylene melt strength, make described second plastic layer 70 of described PAP 100 with described aluminium alloy layer 50 when there is no adhesive, still there is good caking property, and make the PAP 100 obtained compare metal tube there is better decay resistance.
Described catalyst is take polyethylene as the organic tin compound of carrier.
Described adhesive layer is PUR, is more specifically the polyethylene of maleic anhydride graft.
In the preferred embodiment, the elongation of described aluminium alloy layer 50 is greater than 10%, and tensile strength is greater than 150MPa.
In the preferred embodiment, described aluminium alloy layer is through solution strengthening process, particularly, by fine aluminium high temperature melting, add the trace elements such as Mn, Mg, Si, Fe, Cu, form aluminium base solid solution, cause distortion of lattice, hinder the motion of dislocation, play the effect of solution strengthening, its intensity can be made to improve.Then by process after alloy at 350 DEG C of the high temperature anneal 4-12h, make its elongation be greater than 10%, tensile strength is greater than 150MPa.
Described aluminium alloy layer 50 comprises the component of following weight fraction: 0.5-0.8%Mn, 0.1-0.3%Mg, 0.4-0.7%Si, 0.5-0.9%Fe, 0.05-0.2%Cu, and Al content is greater than 97%.The hardness of this aluminium alloy is 40-50HV.This component can ensure that aluminium alloy has high tensile strength, has certain ductility simultaneously, is conducive to welding fabrication.
Embodiments of the invention select following raw material to be illustrated, but raw material of the present invention is not limited thereto:
Cross-link low-density polyethylene agent is purchased from Shanghai Functional Polymer Material Research Institute, and model is 4230, and melt strength (MS) is 4.0mN;
Catalyst is purchased from Shanghai Functional Polymer Material Research Institute, and model is TA2125, and main component is organic tin compound, by polyethylene as carrier, is processed into master batch.
PUR is the polyethylene of maleic anhydride graft, is produced by SK, the trade mark: LE102T, and density is 0.91-0.95g/cm
3, melting means is 1-5g/10min (190 DEG C, 2.16kg).
Weatherable master batch reaches production by Lanzhou orchid, model YH-02, density range: 0.91-0.93g/cm
3, melting means scope: 1-3g/10min (190 DEG C, 2.16kg);
Fire-retardant master granule is by the development and production of Japanese Ling Yu KCC, and model is C-510.
Masterbatch is produced by Pu Liwan condensate (Shenzhen) Co., Ltd, model 9689, melting means scope: 10-30g/10min (190 DEG C, 2.16kg), fugitive constituent≤0.15%.
Embodiment 1
A preparation method for cable PAP, the external diameter of described al-plastics composite pipe 100 is 20mm, and internal diameter is 17mm, and the first plastic layer 10 and the second plastic layer 70 are orange, and it comprises the following steps (following number is weight portion):
By 95 parts of low-density crosslinked polyethylenes, 5 parts of catalyst, 15 parts of fire-retardant master granule, 5 parts of weatherable master batch and part 3 Masterbatch mixing, fully stir 13min with homogenizer, put in described second plastic layer extruder, barrel temperature is 170 DEG C;
By 95 parts of low-density crosslinked polyethylenes, 5 parts of catalyst, 20 parts of fire-retardant master granules, 3 parts of Masterbatch mixing, fully stir 16min with homogenizer, then put in described first plastic layer extruder, barrel temperature is 175 DEG C;
Put into by PUR in adhesive layer extruder, processing temperature is 190 DEG C;
Aluminium alloy width is 64mm, and thickness is 0.37mm, and elongation is 12%, and tensile strength is 160MPa, and associating mold temperature is 200 DEG C;
Described second plastic layer extruder screw rotating speed is 38r/min, and described first plastic layer extruder screw rotating speed is 45r/min, and adhesive layer extruder rotating speed is 18r/min, and welder power is 35%, and weldering pressure 0.7V, production of aluminum speed is 8m/min.After extruding, obtain cable PAP through cooling, shaping, print, batch.
This cable PAP is compared with common PAP, and performance is as follows:
Embodiment 2
A preparation for cable PAP, the external diameter of described al-plastics composite pipe is 25mm, and internal diameter is 21mm, and the first plastic layer and the second plastic layer are orange, and it comprises the following steps (following number is weight portion):
By 95 parts of low-density crosslinked polyethylenes, 5 parts of catalyst, 15 parts of fire-retardant master granule, 5 parts of weatherable master batch and part 3 Masterbatch mixing, fully stir 15min with homogenizer, put into described second plastics layer by layer in extruder, barrel temperature is 175 DEG C;
By 95 parts of low-density crosslinked polyethylenes, 5 parts of catalyst, 20 parts of fire-retardant master granule mixing, fully stir 17min with homogenizer, then put in described first plastic layer extruder, barrel temperature is 170 DEG C;
Put into by PUR in adhesive layer extruder, processing temperature is 188 DEG C;
Aluminium alloy width is 79mm, and thickness is 0.35mm, and elongation is 15%, and tensile strength is 165MPa, and associating mold temperature is 210 DEG C;
Described second plastic layer extruder screw rotating speed is 48r/min, and described first plastic layer extruder screw rotating speed is 60r/min, and bonding extruder rotating speed is layer by layer 23r/min, and welder power is 40%, and weldering pressure 0.8V, production of aluminum speed is 7m/min.After extruding, obtain cable PAP through cooling, shaping, print, batch.
This cable PAP is compared with common PAP, and performance is as follows:
Embodiment 3
A preparation for cable PAP, the external diameter of described al-plastics composite pipe is 25mm, and internal diameter is 21mm, and the first plastic layer and the second plastic layer are orange, and it comprises the following steps (following number is weight portion):
By 95 parts of low-density crosslinked polyethylenes, 5 parts of catalyst, 15 parts of fire-retardant master granule, 5 parts of weatherable master batch and part 3 Masterbatch mixing, fully stir 10min with homogenizer, put into described second plastics layer by layer in extruder, barrel temperature is 150 DEG C;
By 95 parts of low-density crosslinked polyethylenes, 5 parts of catalyst, 20 parts of fire-retardant master granule mixing, fully stir 10min with homogenizer, then put in described first plastic layer extruder, barrel temperature is 150 DEG C;
Put into by PUR in adhesive layer extruder, processing temperature is 180 DEG C;
Aluminium alloy width is 79mm, and thickness is 0.35mm, and elongation is 15%, and tensile strength is 165MPa, and associating mold temperature is 180 DEG C;
Described second plastic layer extruder screw rotating speed is 30r/min, and described first plastic layer extruder screw rotating speed is 30r/min, and bonding extruder rotating speed is layer by layer 10r/min, and welder power is 30%, and weldering pressure 0.6V, production of aluminum speed is 5m/min.After extruding, obtain cable PAP through cooling, shaping, print, batch.
This cable PAP is compared with common PAP, and performance is as follows:
Embodiment 4
A preparation method for cable PAP, the external diameter of described al-plastics composite pipe 100 is 20mm, and internal diameter is 17mm, and the first plastic layer 10 and the second plastic layer 70 are orange, and it comprises the following steps (following number is weight portion):
By 95 parts of low-density crosslinked polyethylenes, 5 parts of catalyst, 15 parts of fire-retardant master granule, 5 parts of weatherable master batch and part 3 Masterbatch mixing, fully stir 20min with homogenizer, put in described second plastic layer extruder, barrel temperature is 180 DEG C;
By 95 parts of low-density crosslinked polyethylenes, 5 parts of catalyst, 20 parts of fire-retardant master granules, 3 parts of Masterbatch mixing, fully stir 20min with homogenizer, then put in described first plastic layer extruder, barrel temperature is 180 DEG C;
Put into by PUR in adhesive layer extruder, processing temperature is 210 DEG C;
Aluminium alloy width is 64mm, and thickness is 0.37mm, and elongation is 12%, and tensile strength is 160MPa, and associating mold temperature is 220 DEG C;
Described second plastic layer extruder screw rotating speed is 50r/min, and described first plastic layer extruder screw rotating speed is 70r/min, and adhesive layer extruder rotating speed is 30r/min, and welder power is 50%, and weldering pressure 1.0V, production of aluminum speed is 10m/min.After extruding, obtain cable PAP through cooling, shaping, print, batch.
This cable PAP is compared with common PAP, and performance is as follows:
The present invention is not limited to above-mentioned execution mode, if do not depart from the spirit and scope of the present invention to various change of the present invention or distortion, if these are changed and distortion belongs within claim of the present invention or equivalent technologies scope, then the present invention is also intended to comprise these changes and distortion.
Claims (10)
1. a cable PAP, it comprises the first plastic layer, adhesive layer, aluminium alloy layer and the second plastic layer from the inside to the outside successively; It is characterized in that: the elongation of described aluminium alloy layer is greater than 10%, and tensile strength is greater than 150MPa, hardness is 40-50HV.
2. PAP according to claim 1, it is characterized in that, described aluminium alloy layer is through solution strengthening process, wherein, by fine aluminium high temperature melting, Mn, Mg, Si, Fe, Cu is added, it is made to form aluminium base solid solution, then by process after alloy at 350 DEG C of the high temperature anneal 4-12h, make its elongation be greater than 10%, tensile strength is greater than 150MPa.
3. PAP according to claim 1, it is characterized in that, described first plastic layer and the second plastic layer are made up of the component of following weight portion: 95 parts of low-density crosslinked polyethylenes, 5 parts of catalyst, 0-5 part weatherable master batch, 15-20 part fire-retardant master granule, 3 parts of Masterbatch.
4. PAP according to claim 3, is characterized in that, the melt strength of described low-density crosslinked polyethylene is 2-5mN.
5. PAP according to claim 1, is characterized in that, described adhesive layer adhesive used is PUR.
6. PAP according to claim 1, is characterized in that, described catalyst is take polyethylene as the organic tin compound of carrier.
7. the PAP according to any one of claim 1-6, it is characterized in that, described aluminium alloy layer comprises the component of following weight fraction: 0.5-0.8%Mn, 0.1-0.3%Mg, 0.4-0.7%Si, 0.5-0.9%Fe, 0.05-0.2%Cu, Al content is greater than 97%.
8. a preparation method for cable PAP, is characterized in that, described method comprises:
By aluminium alloy by preformation forming roll, curling gradually by sheet, through format roll, be coated on outside format roll; With ultrasonic welding machine, the aluminum alloy lapped place be coated on outside format roll is welded into aluminium-alloy pipe, welder power is 30-50%, and weldering pressure is 0.6-1.2V;
Low-density crosslinked polyethylene, catalyst, fire-retardant master granule, weatherable master batch and Masterbatch are mixed, fully stir 10-20min with homogenizer, be fed in described second plastic layer extruder, barrel temperature is 150-180 DEG C;
Put into by PUR in adhesive layer extruder, processing temperature is 180-210 DEG C;
By low-density crosslinked polyethylene, catalyst, fire-retardant master granule, Masterbatch mixing, fully stir 10-20min with homogenizer, then put in the first plastic layer extruder, barrel temperature is 150-180 DEG C;
Composite die is connected with adhesive layer extruder with the first plastic layer extruder, format roll is connected with composite die, first plastic layer plastic melt and tack coat melt through composite die to format roll, extrude and to be propped up by compressed air afterwards, be close to aluminum pipe inwall, be shaped to the first plastic layer and adhesive phase;
Aluminum pipe, through the second plastic layer mould, is extruded through the second plastic layer extruder, is shaped to the second plastic layer;
Each layer is one-step shaping above, after cooling and shaping, obtains described cable PAP.
9. the preparation method of PAP according to claim 8, it is characterized in that: described aluminium alloy layer is through solution strengthening process, wherein, by fine aluminium high temperature melting, add Mn, Mg, Si, Fe, Cu, make it form aluminium base solid solution, then by process after alloy at 350 DEG C of the high temperature anneal 4-12h, make its elongation be greater than 10%, tensile strength is greater than 150MPa.
10. the preparation method of PAP according to claim 8 or claim 9, is characterized in that: the elongation of obtained described aluminium alloy layer is greater than 10%, and tensile strength is greater than 150MPa; The melt strength of described low-density crosslinked polyethylene is 2-5mN.
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| CN201510482447.1A CN105186408A (en) | 2015-08-07 | 2015-08-07 | Aluminium-plastic composite tube for cable and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107681576A (en) * | 2017-10-24 | 2018-02-09 | 山东艾菲尔管业有限公司 | A kind of plastic-aluminum combined SP pipes of four layers of butt welding and preparation method 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 |
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| CN107681576A (en) * | 2017-10-24 | 2018-02-09 | 山东艾菲尔管业有限公司 | A kind of plastic-aluminum combined SP pipes of four layers of butt welding and preparation method 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 |
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Application publication date: 20151223 |