CN102242834A - Double-layer polyethylene composite tubular product with ultrahigh molecular weight - Google Patents
Double-layer polyethylene composite tubular product with ultrahigh molecular weight Download PDFInfo
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- CN102242834A CN102242834A CN2010101777692A CN201010177769A CN102242834A CN 102242834 A CN102242834 A CN 102242834A CN 2010101777692 A CN2010101777692 A CN 2010101777692A CN 201010177769 A CN201010177769 A CN 201010177769A CN 102242834 A CN102242834 A CN 102242834A
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Abstract
The invention discloses a double-layer polyethylene composite tubular product with ultrahigh molecular weight, belonging to the technical field of tubular products. The tubular product comprises an inner wall, a metal layer and an outer wall; the metal layer consists of a steel strip layer and a steel wire layer; the steel strip layer is arranged along the direction parallel to the tubular product axial lead equidistantly, the steel strip thickness is 0.5-3 millimeters, and the space between the steel strips is 10-20millimeters; an ultrahigh molecular weight polyethylene hot melt adhesive is coated on the steel strip layer with the coating layer thickness of 0.7-3.0millimeters; the steel wire layer is of a structure that the packed steel strip layer is spiral wound at the direction vertical to the tubular product axial lead, wherein the steel wire is a spring steel wire, and the diameter of the steel wire is 0.8-2.5millimeters; and the materials of the inner wall and the outer wall are polyethylene with molecular weight more than 2.5 million units. The tubular product provided by the invention has the advantages of reasonable structural design, high abrasion and corrosion resistance performances and high bearing capability, the optimal pressure can reach 16MPa, and is the double-layer polyethylene composite tubular product with ultrahigh molecular weight which has wide application wide and long service life.
Description
Technical field
The present invention relates to a kind of polyvinyl piping materials, relate to a kind of double-deck ultra-high molecular weight polyethylene composite pipe specifically, be mainly used in industries such as oil, chemical industry, mine, building.
Background technique
In the prior art, the composite pipe of making lining of steel wire has multiple structure, discloses the composite pipe that interlayer between a kind of pipe material inner wall and the outer wall has the layer of metal mesh grid as CN2202838Y; CN2142168Y discloses the composite pipe that scribbles adhesive layer at least between one deck winding steel wire layer and plastic core pipe and plastic outer layer; Its impact strength of above structural tube, tensile strength, wear resistance, anti-environmental cracking and anti-fatigue performance are all lower, and its bearing capacity can only reach 2.5MPa.Also having with polyethylene or silane crosslinked polyethylene is the composite pipe inwall, because composite pipe inwall intensity is not high, in addition due to the reasons such as canoe of steel wire, individual layer steel wire composite pipe easily produces the hoop cracking, the double-layer wire composite pipe vertically can not be crooked, joint area produces stress and concentrates, and cracking phenomena occurs in installing and using.As to adopt glass fibre reinforced plastics be outer wall, and the splitting resistance of this composite pipe outer wall is poor, fragility is big, very easily ftractures or peel off, and the steel wire of exposure is corroded very soon, causes pipe leakage.
Its bearing capacity minimum requirements of the used tubing in current market reaches 4-5MPa, and existing tubing can not satisfy the demand in market far away.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing tubing project organization, a kind of " double-deck ultra-high molecular weight polyethylene composite pipe " is provided.This tubing has reasonable in design, cost performance height, wear-corrosion resistance is strong, bearing capacity is high advantage, is the double-deck ultra-high molecular weight polyethylene composite pipe of a kind of applied range, long service life.
To achieve these goals, the present invention is achieved through the following technical solutions: a kind of double-deck ultra-high molecular weight polyethylene composite pipe, this tubing is set to four layers of composite structure, include inwall, metal layer, outer wall, described metal layer places between inwall and the outer wall, be made up of steel belt layer and steel wire floor, steel belt layer places between steel wire floor and the inwall, and steel wire floor places between steel belt layer and the outer wall.
Described steel belt layer is along the equidistant arranging structure of tubing axis parallel direction, and its thickness of strips is the 0.5-3 millimeter, and the spacing between steel band and the steel band is the 10-20 millimeter.
Be coated with the ultra-high molecular weight polyethylene hot melt adhesive on the described steel belt layer, its coating thickness is the 0.7-3.0 millimeter.
Described steel wire floor is parcel steel belt layer spiral winding structure with perpendicular to the tubing direction of axis line, and described steel wire is a Spring Steel Wire, and steel wire diameter is the 0.8-2.5 millimeter, and grade of steel is 72A.
Described inwall, the used material of outer wall are the polyethylene that molecular weight surpasses 2,500,000 units.
The present invention compares with existing composite pipe has following advantage:
1. the present invention has reasonable in design, cost performance height, wear-corrosion resistance is strong, bearing capacity is high advantage, is the double-deck ultra-high molecular weight polyethylene composite pipe of a kind of applied range, long service life.
2. because of inwall, the used material of outer wall are the polyethylene that molecular weight surpasses 2,500,000 units, this tubing is not only fire-retardant, antistatic, and shock resistance, wear-corrosion resistance are strong, its inner wall smooth, non-scaling, and loss of head is than steel pipe low 30%;
3. because of between inwall, outer wall, being provided with the reinforced structure layer of forming by steel band and steel wire, on steel belt layer, be coated with the ultra-high molecular weight polyethylene hot melt adhesive again, and steel wire floor is with perpendicular to the tubing direction of axis line, be parcel steel belt layer spiral winding structure, inside and outside tube wall and metal shielding are combined together, form overall structure, the interface, slit can not appear, therefore erosion of pipe internal pressure or Korrosionsmedium or damage have been eliminated, effectively improve tubing intensity, rigidity and pressure rating, maximum pressure can reach 16MPa; Pipe workpiece quality and operational safety are improved greatly, and be decades its working life.
Description of drawings
Fig. 1 is a sectional structure schematic representation of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to the sectional structure schematic representation
Among the figure: 1. inwall, 2. metal layer, 3. outer wall, 4. steel band, 5. steel wire, 6. adhesive layer.
Embodiment
Below by non-limiting example, further set forth the present invention, understand invention.
Embodiment
The present invention as shown in Figure 1, a kind of double-deck ultra-high molecular weight polyethylene composite pipe, this tubing is set to four layers of composite structure, include inwall, metal layer, outer wall, described metal layer places between inwall and the outer wall, be made up of steel belt layer and steel wire floor, steel belt layer places between steel wire floor and the inwall, and steel wire floor places between steel belt layer and the outer wall.
Described steel belt layer is along the equidistant arranging structure of tubing axis parallel direction, and its thickness of strips is the 0.5-3 millimeter, and the spacing between steel band and the steel band is the 10-20 millimeter.
Be coated with polyethylene hot-melt adhesive on the described steel belt layer, market can be purchased, and its coating thickness is the 0.7-3.0 millimeter.
Described steel wire floor is parcel steel belt layer spiral winding structure with perpendicular to the tubing direction of axis line, and described steel wire is a Spring Steel Wire, and steel wire diameter is the 0.8-2.5 millimeter, and grade of steel is 72A.
Described inwall, the used material of outer wall are the polyethylene that molecular weight surpasses 2,500,000 units.
According to the size of user's request and institute's Environmental Conditions design caliber, select width, thickness, the steel wire diameter of steel band, bearing capacity is 3 times of working pressure, can design and manufacture its bearing capacity is the various model tubing of 1.5MPa-16MPa.
As manufacturing and designing the tubing that bearing capacity is 5MPa: 200 millimeters of calibers, 10 millimeters of width of steel band, 1.5 millimeters of thickness, 15 millimeters of spacings, 1 millimeter of steel wire diameter.
Tubing is by the special device manufacturing.
In sum, the present invention has reasonable in design, cost performance height, wear-corrosion resistance is strong, bearing capacity is high advantage, and maximum pressure can reach 16MPa, is the double-deck ultra-high molecular weight polyethylene composite pipe of a kind of applied range, long service life.
Claims (5)
1. double-deck ultra-high molecular weight polyethylene composite pipe, it is characterized in that, this tubing is set to four layers of composite structure, include inwall (1), metal layer (2), outer wall (3), described metal layer (2) places between inwall (1) and the outer wall (3), be made up of steel belt layer (4) and steel wire floor (5), steel belt layer (4) places between steel wire floor (5) and the inwall (1), and steel wire floor (5) places between steel belt layer (4) and the outer wall (3).
2. a kind of double-deck ultra-high molecular weight polyethylene composite pipe according to claim 1, it is characterized in that, described steel belt layer (4) is along the equidistant arranging structure of tubing axis parallel direction, and its thickness of strips is the 0.5-3 millimeter, and the spacing between steel band and the steel band is the 10-20 millimeter.
3. a kind of double-deck ultra-high molecular weight polyethylene composite pipe according to claim 2 is characterized in that, is coated with the ultra-high molecular weight polyethylene hot melt adhesive on described steel belt layer (4), and its coating thickness is the 0.7-3.0 millimeter.
4. a kind of double-deck ultra-high molecular weight polyethylene composite pipe according to claim 1, it is characterized in that, described steel wire floor (5) is with perpendicular to the tubing direction of axis line, be parcel steel belt layer (4) spiral winding structure, described steel wire is a Spring Steel Wire, steel wire diameter is the 0.8-2.5 millimeter, and grade of steel is 72A.
5. a kind of double-deck ultra-high molecular weight polyethylene composite pipe according to claim 1 is characterized in that, its inwall (1), the used material of outer wall (3) are the polyethylene that molecular weight surpasses 2,500,000 units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101777692A CN102242834A (en) | 2010-05-13 | 2010-05-13 | Double-layer polyethylene composite tubular product with ultrahigh molecular weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101777692A CN102242834A (en) | 2010-05-13 | 2010-05-13 | Double-layer polyethylene composite tubular product with ultrahigh molecular weight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102242834A true CN102242834A (en) | 2011-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101777692A Pending CN102242834A (en) | 2010-05-13 | 2010-05-13 | Double-layer polyethylene composite tubular product with ultrahigh molecular weight |
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| CN (1) | CN102242834A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143705A (en) * | 2017-07-19 | 2017-09-08 | 长兴佳能高分子材料有限公司 | High-strength big-diameter PE is managed |
| CN111271512A (en) * | 2020-03-11 | 2020-06-12 | 支焕 | PE double-layer pipe and processing technology |
-
2010
- 2010-05-13 CN CN2010101777692A patent/CN102242834A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143705A (en) * | 2017-07-19 | 2017-09-08 | 长兴佳能高分子材料有限公司 | High-strength big-diameter PE is managed |
| CN111271512A (en) * | 2020-03-11 | 2020-06-12 | 支焕 | PE double-layer pipe and processing technology |
| CN111271512B (en) * | 2020-03-11 | 2021-09-21 | 支焕 | PE double-layer pipe and processing technology |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111116 |