CN100564974C - Ultrahigh molecular weight polyethylene dead-hard steel wire composite pipeline and preparation method thereof - Google Patents
Ultrahigh molecular weight polyethylene dead-hard steel wire composite pipeline and preparation method thereof Download PDFInfo
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- CN100564974C CN100564974C CNB2008100137545A CN200810013754A CN100564974C CN 100564974 C CN100564974 C CN 100564974C CN B2008100137545 A CNB2008100137545 A CN B2008100137545A CN 200810013754 A CN200810013754 A CN 200810013754A CN 100564974 C CN100564974 C CN 100564974C
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- body pipe
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Abstract
The invention discloses a kind of ultrahigh molecular weight polyethylene steel silk multiple tube and preparation method thereof, it has basal body pipe, adopt steel wire to twine arrangement at the basal body pipe outer wall perpendicular to basal body pipe axis mode, the radiant crosslinked polyethylene stretch tape that steel wire outer wall parcel sheet spiral twines, between steel wire and the steel wire, between steel wire and the basal body pipe, adopt polyethylene hot-melt adhesive to heat between steel wire and the radiant crosslinked polyethylene stretch tape to be bonded into one.Its preparation method is that to select superhigh molecular weight polyethylene pipe for use be basal body pipe, is coated with polyethylene hot-melt adhesive at the basal body pipe outer surface, adopts steel wire to twine arrangement perpendicular to the mode of basal body pipe axis at the basal body pipe outer wall; At last the radiant crosslinked polyethylene stretch tape is wrapping to the spiral canoe on the steel wire of basal body pipe outer wall, basal body pipe, steel wire and radiant crosslinked polyethylene stretch tape glue is fused by hot melting mode.Pipeline pliability of the present invention joint stress well can not occur and concentrate phenomenon of rupture; Cost is low, only is three/monovalence of existing multiple tube, can make the heavy caliber product according to customer requirements.
Description
Technical field
The present invention relates to polyethylene pipe, is a kind of ultrahigh molecular weight polyethylene dead-hard steel wire composite pipeline and preparation method thereof.
Background technique
Claimant's superhigh molecular weight polyethylene pipe road patented product uses through market in recent years, because its superior performance has obtained user's extensive approval.But the continuous rise along with the polyethylene cost of material increases substantially cost of production.In order to reduce production costs, the claimant develops the multiple tube that adopts steel wire, in the hope of making the tube wall attenuate, thereby reduces the consumption of polythene material.The composite pipe of doing lining with steel wire in the known technology has multiple structure, but part all comes with some shortcomings: for example: with polyethylene or silane crosslinked polyethylene is the composite pipe matrix, impact strength, its tensile strength, wear resistance, anti-environmental cracking and anti-fatigue performance are all lower.Because the tubing matrix strength is not high, due to the reasons such as canoe of steel wire, individual layer steel wire composite pipe easily produces the hoop cracking in addition, and the double-layer wire composite pipe vertically can not be crooked, and joint area produces stress and concentrates, and cracking phenomena occurs in installing or using.And for example: in the scheme of ZL031511309 patent disclosure, it is outer adopting glass fibre reinforced plastics, the cracking resistance of this pipeline outer-layer, the wear-resisting fatigue performance extreme difference that undermines, very easily ftracture or peel off, the very fast meeting of steel wire that exposes is corroded in applied environment, causes pipe leakage, and then pipeline is scrapped, therefore, this pipeline does not obtain customer acceptance at present as yet in market.
Summary of the invention
The objective of the invention is, a kind of ultrahigh molecular weight polyethylene dead-hard steel wire composite pipeline and preparation method thereof is provided, it can overcome other type steel frame polyethylene compound pipe the deficiencies in the prior art effectively, the main pipeline mechanical performance index and the bearing capacity of composite pipe are increased substantially, and engineering cost reduces significantly.
The present invention for achieving the above object, be achieved through the following technical solutions: ultrahigh molecular weight polyethylene steel silk multiple tube, it has basal body pipe, basal body pipe is a superhigh molecular weight polyethylene pipe, adopt steel wire to twine arrangement at the basal body pipe outer wall perpendicular to basal body pipe axis mode, the radiant crosslinked polyethylene stretch tape that steel wire outer wall parcel sheet spiral twines, between steel wire and the steel wire, between steel wire and the basal body pipe, adopt polyethylene hot-melt adhesive to heat between steel wire and the radiant crosslinked polyethylene stretch tape to be bonded into one.The thickness of radiant crosslinked polyethylene stretch tape is the 1.9-4.5 millimeter, and it is that matrix is made sheet material that adhesive tape adopts low density polyethylene, through applying the m-9411 polyethylene hot-melt adhesive on the sheet base after calendering stretching and the radiation.Described steel wire is a Spring Steel Wire, and grade of steel is 72A, and steel wire diameter is the 0.8-2.5 millimeter.The thickness that at low density polyethylene is the m-9411 polyethylene hot-melt adhesive that applies on the adhesive tape of matrix is the 0.5-1.2 millimeter.
The preparation method of described ultrahigh molecular weight polyethylene steel silk multiple tube:
Selecting superhigh molecular weight polyethylene pipe for use is basal body pipe;
Be coated with polyethylene hot-melt adhesive at the basal body pipe outer surface;
The basal body pipe outer surface is carried out activation processing and undergauge processing;
Adopt steel wire to twine arrangement at the basal body pipe outer wall perpendicular to the mode of basal body pipe axis;
Adopting low density polyethylene to make thickness is 1.9-4.5 millimeter sheet material, as the crosslinked polyethylene stretch tape matrix of penetrating of spoke, carry out radiation treatment again after sheet material rolled stretching, in sheet surface coating polyethylene hot melt adhesive, it is standby to obtain the radiant crosslinked polyethylene stretch tape then;
At last the radiant crosslinked polyethylene stretch tape is wrapping to the spiral canoe on the steel wire of basal body pipe outer wall, basal body pipe, steel wire and radiant crosslinked polyethylene stretch tape glue is fused by hot melting mode.Described hot melting way is for after adopting the infrared rays heating, again to steel wire energising heating.Sheet radiant crosslinked polyethylene stretch tape is when parcel basal body pipe outer wall steel wire, and two adhesive tapes overlap the 15-40 millimeter between axially connecting.The polyethylene hot-melt adhesive thickness that radiant crosslinked polyethylene stretch tape matrix surface applies is the 0.2-1.5 millimeter.The polyethylene hot-melt adhesive thickness of radiant crosslinked polyethylene stretch tape surface-coated is the 0.5-1.2 millimeter.Described polyethylene hot-melt adhesive is the m-9411 polyethylene hot-melt adhesive.
Pipeline of the present invention reaches following advantage through on probation, test: various performances all are improved largely than prior art: bearing capacity is high about 3.5 times, about 4 times excellent in cushion effect, fatigue resistance is high 22 times, low temperature resistantly be lower than 50 ℃ of prior arts, high temperature resistant 40 ℃ of the prior arts that are higher than, corrosion resistance is high about 2.7 times, and pliability is high by 60%, cracking phenomena do not occur under low temperature limit and high temperature limit environment; Peeling strength is up to 50N/cm, and pipeline outer-layer resists delineation, anti-irradiation; The pipeline pliability joint stress well can not occur and concentrate phenomenon of rupture; Cost is low, only is three/monovalence of existing multiple tube, is a kind of superior performance, the product that cost is extremely low.The described method of the application can be made the heavy caliber product according to customer requirements.
Description of drawings
Accompanying drawing 1 is a multiple tube structural representation of the present invention.
1 is steel wire among the figure, the 2nd, and hot melt adhesive, the 3rd, radiant crosslinked polyethylene stretch tape, the 4th, basal body pipe.
Embodiment
Embodiment:
The invention provides a kind of ultrahigh molecular weight polyethylene steel silk multiple tube, its structure characteristic is: basal body pipe is a superhigh molecular weight polyethylene pipe, adopt steel wire to twine arrangement at the basal body pipe outer wall perpendicular to basal body pipe axis mode, high-tensile steel wires and this winding arrangement mode can increase the hoop bearing capacity of pipeline, and the hoop bearing capacity is higher about 3 times than prior art product after tested.The radiant crosslinked polyethylene stretch tape that twines at steel wire outer wall parcel sheet spiral, between steel wire and the steel wire, between steel wire and the basal body pipe, adopt polyethylene hot-melt adhesive to heat between steel wire and the radiant crosslinked polyethylene stretch tape to be bonded into one.
The thickness of radiant crosslinked polyethylene stretch tape of the present invention is the 1.9-4.5 millimeter, and the preferred thickness of cost performance is the 2-4 millimeter, and bonding is firm, and can reduce cost.It is that matrix is made sheet material that adhesive tape adopts low density polyethylene, roll stretching then to strengthen its intensity, carry out crosslinking with radiation again, on the sheet base after the overshoot, apply one deck m-9411 polyethylene hot-melt adhesive, the m-9411 polyethylene hot-melt adhesive is the preferred version of determining through screening test, it is strong that it has a bonding force, the advantage that the Applicable temperature scope is wide, and softening point is 115 ℃-120 ℃.
Steel wire of the present invention is a Spring Steel Wire, and grade of steel is 72A, and steel wire diameter is the 0.8-2.5 millimeter, and this preferred tensile strength of wire reaches 1980N/mm
2
Further scheme of the present invention is: the thickness that at low density polyethylene is the m-9411 polyethylene hot-melt adhesive that applies on the adhesive tape of matrix is the 0.5-1.2 millimeter, this is the preferred version of cost performance, certainly, this thickness is greater than 1.2 millimeters, in 2.5 millimeters, its adhesive effect is better, but the corresponding raising of cost.
The invention provides a kind of preparation method of ultrahigh molecular weight polyethylene steel silk multiple tube, its technological process is:
Selecting superhigh molecular weight polyethylene pipe for use is basal body pipe;
Be coated with polyethylene hot-melt adhesive at the basal body pipe outer surface;
The basal body pipe outer surface is carried out activation processing and undergauge processing;
Adopting grade of steel at the basal body pipe outer wall is that the Spring Steel Wire of 72A is to twine arrangement perpendicular to the mode of basal body pipe axis;
Adopting low density polyethylene to make thickness is 1.9-4.5 millimeter sheet material, as radiant crosslinked polyethylene stretch tape matrix, carry out radiation treatment again after sheet material rolled stretching, in sheet surface coating polyethylene hot melt adhesive, it is standby to obtain the radiant crosslinked polyethylene stretch tape then;
At last the radiant crosslinked polyethylene stretch tape is wrapping to the spiral canoe on the steel wire of basal body pipe outer wall, basal body pipe, steel wire and radiant crosslinked polyethylene stretch tape glue is fused by hot melting mode.
Hot melting way of the present invention is for after adopting the infrared rays heating, and to steel wire energising heating, this can further guarantee its bond effect again.Sheet radiant crosslinked polyethylene stretch tape is when parcel basal body pipe outer wall steel wire, and two adhesive tapes overlap joint 15-40 millimeter between axially connecting is to increase its soundness, hoop bearing strength.The polyethylene hot-melt adhesive thickness that radiant crosslinked polyethylene stretch tape matrix surface applies is the 0.2-1.5 millimeter.The preferred thickness of cost performance is the 0.5-1.2 millimeter.Described polyethylene hot-melt adhesive is the m-9411 polyethylene hot-melt adhesive.
Pipe remained the expansive force to steel wire in undergauge described in the inventive method was handled and can be made, and made between steel wire and the interior pipe in the long-term frequent alternation process of pressure, did not produce disengaging, the working life of prolongation pipeline of the present invention.Of the present inventionly steel wire is carried out electric heating can adopt pressure governor directly to control, make the efficiency of heating surface and bond effect better.
Radiant crosslinked polyethylene stretch tape sheet material stretch ratio of the present invention is 1: 3 times, and the adhesive tape tensile strength after shining through band can reach 40Mpa-65Mpa.
Grade of steel used herein is through the preferred version after the test for the 72A Spring Steel Wire, this steel wire winding method of the present invention, can make the bearing capacity of pipeline of the present invention reach higher level, higher about 3 times than prior art, and restore to the original state after making the pipeline compressive deformation.
Steel wire diameter is selected between the 0.8-2.5 millimeter, and it also makes pipeline have certain pliability and elasticity when having advantages of higher tensile strength.
The polyethylene hot-melt adhesive of radiant crosslinked polyethylene stretch tape surface-coated of the present invention only need be coated with a surface and get final product.The radiant crosslinked polyethylene stretch tape is a strip, and width is generally 20-30 centimetre, and length can be made 1 meter, 2 meters, 5 meters or longer etc. as required.
Claims (8)
1, ultrahigh molecular weight polyethylene steel silk multiple tube, it has basal body pipe, it is characterized in that: basal body pipe is a superhigh molecular weight polyethylene pipe, adopt steel wire to twine arrangement at the basal body pipe outer wall perpendicular to basal body pipe axis mode, the radiant crosslinked polyethylene stretch tape that steel wire outer wall parcel sheet spiral twines, between steel wire and the steel wire, between steel wire and the basal body pipe, adopt polyethylene hot-melt adhesive to heat between steel wire and the radiant crosslinked polyethylene stretch tape to be bonded into one; Described steel wire is a Spring Steel Wire, and grade of steel is 72A, and steel wire diameter is the 0.8-2.5 millimeter.
2, ultrahigh molecular weight polyethylene steel silk multiple tube according to claim 1, it is characterized in that: the thickness of radiant crosslinked polyethylene stretch tape is the 1.9-4.5 millimeter, it is that matrix is made sheet material that adhesive tape adopts low density polyethylene, through applying the m-9411 polyethylene hot-melt adhesive on the sheet base after calendering stretching and the radiation.
3, ultrahigh molecular weight polyethylene steel silk multiple tube according to claim 2 is characterized in that: the thickness that at low density polyethylene is the m-9411 polyethylene hot-melt adhesive that applies on the adhesive tape of matrix is the 0.5-1.2 millimeter.
4, the preparation method of the described ultrahigh molecular weight polyethylene steel silk of claim 1 multiple tube is characterized in that:
Selecting superhigh molecular weight polyethylene pipe for use is basal body pipe;
Be coated with polyethylene hot-melt adhesive at the basal body pipe outer surface;
The basal body pipe outer surface is carried out activation processing and undergauge processing;
Adopt steel wire to twine arrangement at the basal body pipe outer wall perpendicular to the mode of basal body pipe axis;
Adopting low density polyethylene to prepare thickness is 1.9-4.5 millimeter sheet material, as radiant crosslinked polyethylene stretch tape matrix, carry out radiation treatment again after sheet material rolled stretching, in sheet surface coating polyethylene hot melt adhesive, it is standby to obtain the radiant crosslinked polyethylene stretch tape then;
At last the radiant crosslinked polyethylene stretch tape is wrapping to the spiral canoe on the steel wire of basal body pipe outer wall, basal body pipe, steel wire and radiant crosslinked polyethylene stretch tape glue is fused by hot melting mode.
5, the preparation method of ultrahigh molecular weight polyethylene steel silk multiple tube according to claim 4 is characterized in that: described hot melting way is for after adopting the infrared rays heating, again to steel wire energising heating.
6, according to the preparation method of claim 4 or 5 described ultrahigh molecular weight polyethylene steel silk multiple tubes, it is characterized in that: sheet radiant crosslinked polyethylene stretch tape is when parcel basal body pipe outer wall steel wire, and two adhesive tapes overlap the 15-40 millimeter between axially connecting.
7, the preparation method of ultrahigh molecular weight polyethylene steel silk multiple tube according to claim 4 is characterized in that: the polyethylene hot-melt adhesive thickness of radiant crosslinked polyethylene stretch tape surface-coated is the 0.5-1.2 millimeter.
8, the preparation method of ultrahigh molecular weight polyethylene steel silk multiple tube according to claim 4 is characterized in that: described polyethylene hot-melt adhesive is the m-9411 polyethylene hot-melt adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100137545A CN100564974C (en) | 2008-01-11 | 2008-01-11 | Ultrahigh molecular weight polyethylene dead-hard steel wire composite pipeline and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2008100137545A CN100564974C (en) | 2008-01-11 | 2008-01-11 | Ultrahigh molecular weight polyethylene dead-hard steel wire composite pipeline and preparation method thereof |
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| CN101230938A CN101230938A (en) | 2008-07-30 |
| CN100564974C true CN100564974C (en) | 2009-12-02 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155591B (en) * | 2011-01-06 | 2013-07-17 | 济南先河科技开发有限公司 | High-power hot-stretched high molecular weight polyethylene film composite tubular product and preparation method thereof |
| CN102635738B (en) * | 2012-04-13 | 2015-05-27 | 刘阜东 | Superhigh molecular weight polyethylene steel wire composite pipe for transporting crude oil by means of electrical heating |
| CN103062527A (en) * | 2013-01-28 | 2013-04-24 | 河北宇通特种胶管有限公司 | Coiled plastic composite pipe reinforced with steel wire |
| CN103600503B (en) * | 2013-10-22 | 2016-03-30 | 王庆昭 | Ultrahigh molecular weight polyethylene compound oil pipe production method |
| CN103629452B (en) * | 2013-11-06 | 2016-03-09 | 泰州雅美雨和新材料有限公司 | A kind of method strengthening superhigh molecular weight polyethylene pipe core and steel wire shaping |
| CN105202281B (en) * | 2015-04-08 | 2018-03-06 | 刘嵩 | High molecular weight polyethylene steel skeleton composite and preparation method thereof and equipment complex |
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2008
- 2008-01-11 CN CNB2008100137545A patent/CN100564974C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 煤矿用塑料管材的安全隐患和超高分子量聚乙烯双抗管的开发应用. 刘阜东.煤矿开采，第12卷第6期. 2007 |
| 煤矿用塑料管材的安全隐患和超高分子量聚乙烯双抗管的开发应用. 刘阜东.煤矿开采，第12卷第6期. 2007 * |
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| CN101230938A (en) | 2008-07-30 |
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