CN100400951C - Steel-plastic composite pipe with bridge type framework - Google Patents
Steel-plastic composite pipe with bridge type framework Download PDFInfo
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- CN100400951C CN100400951C CNB2005100364865A CN200510036486A CN100400951C CN 100400951 C CN100400951 C CN 100400951C CN B2005100364865 A CNB2005100364865 A CN B2005100364865A CN 200510036486 A CN200510036486 A CN 200510036486A CN 100400951 C CN100400951 C CN 100400951C
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Abstract
The present invention relates to a steel-plastic composite pipe with a bridge type framework. The present invention is formed by coating a steel pipe at a middle layer by plastic at an inner and an outer layers, wherein the inner and the outer surfaces of the steel pipe are provided with grooves, convex bridges, and seams or holes for switching on the inner and the outer surfaces in the grooves. The bridge type framework is utilized, the steel pipe and the plastic at the inner and the outer layers are mutually interwoven and engaged like a web and are hermetically and firmly combined together, stress can be avoided from resulting in the separation and the slippage of the steel pipe and the plastic, the convex bridge plays the efficacy of a reinforcing rib and a double-layer steel pipe, the fibre structure of the steel pipe is not damaged basically, the pipe wall thickness of the steel pipe with the bridge type framework with the same intensity and rigidity is more than 20% less than that of a hole net steel band framework, and material consumption is little. Due to the definite elastic property of the net-shaped steel pipe and chemical and physical properties of the plastic, the composite pipe has the advantages of high intensity, good rigidity, light weight, impact resistance, corrosion resistance, little pressure loss, firm steel-plastic combination and seal, low cost, good burning resistance, good temperature retention, etc., and the impact noise of liquid is effectively weakened; therefore, the present invention is worthy of popularizing and applying.
Description
Technical field:
The present invention relates to a kind of composite metal-plastic pipe, particularly a kind of steel-plastic composite pipe.
Background technique:
Current because various composite pipes have good usability and characteristics such as quick and easy for installation, be widely used in worker, agricultural and live in as conveyance conduit, as aluminium-plastic composite pipe, steel-plastic composite pipe and other composite metal-plastic pipe etc.And steel-plastic composite pipe is because advantage such as its intensity height, good rigidly, corrosion-resistant, the pressure loss is little, shock resistance and very popular, being particularly suitable for doing bigbore pipe uses, on structure, also there is certain deficiency in steel-plastic composite pipe at present: (1) steel mesh framework composite tube and steel-wire carcass composite pipe intensity are on the low side, rigidity is not fine, and the application area of steel-plastic composite pipe is restricted; (2) the steel band framework steel plastic compound tube is owing to the increase of its wall thickness along with caliber increases, cause pipe heavily to increase, the plant capacity that tubing is made, equipment volume and energy consumption increase, in addition, steel pipe and inside and outside layer plastics are by the bonding sealing of hot melt adhesive, and it is firm inadequately easily to cause steel pipe to combine with plastics, particularly under time one length and the cold and hot stress that causes, can take place to separate between steel pipe and the plastics, slippage, cause steel pipe by corrosion, reduction of service life; (3) though making inside and outside layer plastics be communicated with through the hole of steel pipe, hole pattern steel band framework steel plastic compound tube makes steel pipe and plastics strong bonded together, but owing on the steel pipe hole that drills through is in a large number arranged, steel-pipe construction destroys serious, its intensity and rigidity must reduce, must remedy this loss by increasing thickness of steel pipe, cause pipe heavily to increase, cost increases.
Summary of the invention:
The objective of the invention is to overcome above-mentioned shortcoming and provide a kind of intensity height, good rigidly, in light weight, shock resistance, steel to mould the steel-plastic composite pipe with bridge type framework that combination seal is firm and cost is low.
Purpose of the present invention can be achieved as follows: this steel-plastic composite pipe with bridge type framework mainly coats the middle level steel pipe by inner plastic and outer layer plastic and constitutes, it is characterized in that: the interior or outer surface of described middle level steel pipe is distributed with groove, the protruding bridge that the then fluted bottom land of the outer or internal surface of middle level steel pipe convexes to form, the internal surface of described middle level steel pipe and outer surface seam or the hole in groove is conducted.
As a further improvement on the present invention: the seam of this steel-plastic composite pipe with bridge type framework or hole have 2 and lay respectively in the relative both sides of groove, and seam or hole add man-hour groove bottom land and separate with middle level steel pipe tube wall and form.
As a further improvement on the present invention: the bonding that is interweaved between the inner plastic of this steel-plastic composite pipe with bridge type framework, outer layer plastic and the middle level steel pipe is interlocked.
As a further improvement on the present invention: at least 2 of grooves of this steel-plastic composite pipe with bridge type framework and being evenly distributed in interval on the surface of middle level steel pipe, middle level steel pipe internal-surface and outer surface all are concavo-convex alternate shape.
As a further improvement on the present invention: the middle level steel pipe internal-surface of this steel-plastic composite pipe with bridge type framework and outer surface all have one deck zinc-plated.
As a further improvement on the present invention: have one deck hot melt adhesive bonding between the internal surface of the middle level steel pipe of this steel-plastic composite pipe with bridge type framework and the inner plastic and between the outer surface of middle level steel pipe and the outer layer plastic.
The present invention by steel band is struck out one side for the groove another side then correspondence be the steel pipe that the protruding bridge that convexes to form is rolled into steel-plastic composite pipe again, there are seam or hole in the groove both sides simultaneously, make inside and outside layer plastics realize digesting through seam or hole, utilize this bridging type skeleton of steel pipe, link as the knitmesh interlock that is interweaved between steel pipe and the inside and outside layer plastics, very sealing combines securely, avoids effectively that stress causes separating between steel pipe and the plastics, the situation of slippage takes place.In this bridge type framework steel pipe, protruding bridge plays the effect of stiffening rib on the one hand, it is the same that numerous on the other hand protruding bridges are lined up another layer steel pipe, the effect that double-layer pipe is arranged, substantially break the fibrous structure that encircles steel pipe after adding processing, if reach same intensity and rigidity, the thickness of pipe wall of this bridge type framework steel pipe lacks more than 20% than hole pattern steel band framework steel plastic compound tube, thereby consumptive material is few.In addition, the bridge type framework steel pipe is owing to be netted, has certain elasticity, add plastics excellent in chemical, physical property, make steel-plastic composite pipe of the present invention have intensity height, good rigidly, in light weight, shock resistance, corrosion-resistant, the pressure loss is little, steel moulds that combination seal is firm, cost is low, good burning resistance and heat insulating ability are arranged and effectively weaken advantages such as hydraulic shock noise, therefore, be worthy of popularization very much.
Description of drawings:
Fig. 1 is the structural representation of steel-plastic composite pipe with bridge type framework of the present invention;
Fig. 2 is the axial partial sectional view of steel-plastic composite pipe with bridge type framework of the present invention;
Fig. 3 is steel-plastic composite pipe with bridge type framework of the present invention steel pipe A-A sectional drawing after amplifying;
Fig. 4 is rolled into the preceding schematic representation of steel pipe for steel-plastic composite pipe with bridge type framework steel band of the present invention;
Fig. 5 is the steel pipe schematic representation of steel-plastic composite pipe with bridge type framework of the present invention.
Embodiment:
The present invention is described in further detail below in conjunction with accompanying drawing:
With reference to figure 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, steel-plastic composite pipe with bridge type framework of the present invention as shown in Figure 1 coats middle level steel pipe 3 by inner plastic 1 and outer layer plastic 2 and constitutes, the outer surface of this middle level steel pipe 3 is distributed with groove 4, the protruding bridge 6 that then correspondingly fluted 4 bottom lands of the internal surface of middle level steel pipe 3 convex to form, the internal surface of middle level steel pipe 3 and outer surface seam or the hole 5 in groove 4 is conducted.The cross section of middle level steel pipe 3 as shown in Figure 3.The groove 4 of middle level steel pipe 3 is at least 2, in Fig. 1 and Fig. 5, then shown the situation that is distributed with numerous grooves 4, and be that (mutual spacing is even) is distributed on the surface of middle level steel pipe 3 (certainly with interval equably, groove 4 also can be with interval but is distributed in unevenly on the surface of middle level steel pipe 3), because the many more netted bridge type frameworks that can demonstrate steel pipe more of groove 4, plastics enter in the steel pipe outside steel pipe when also being beneficial to the processing composite pipe more, thereby in making, combining between outer layer plastic and the steel pipe is more firm, when groove 4 has only 2 or when several, then need the length of groove 4 or widely suitably add the great talent and be beneficial to the processing composite pipe, and in, outer layer plastic is relative with the combination between the steel pipe so infirm yet.Like this, because fluted 4 another sides of one side of middle level steel pipe 3 then have protruding bridge 6, so the internal surface of middle level steel pipe 3 and outer surface all are concavo-convex alternate shape.Here, the groove 4 of middle level steel pipe 3 also can be distributed in its internal surface, and correspondingly the protruding bridge 6 that convexes to form of groove 4 bottom lands then is distributed in the outer surface of middle level steel pipe 3, and this is that steel coil strip rolls the direction difference when making steel pipe.
When steel band shown in Figure 4 is rolled into steel pipe from different directions, to obtain as Fig. 1 and different-effect shown in Figure 5, the dual-side of Fig. 1 further groove 4 and the parallel to an axis of pipe, and the dual-side of Fig. 5 further groove 4 and pipe is axial vertical, both distinguish not quite, and key is will be beneficial to obtain better intensity and rigidity along the fiber of steel band when rolling.
The groove 4 on middle level steel pipe 3 surfaces and protruding bridge 6 are to make through process for stamping with mould on the steel band before rolling into steel pipe, as shown in Figure 4, because mould is arranged, groove bottom with groove 4 when making punching press separates disengagement with middle level steel pipe 3 tube walls, thereby and throw off determining deviation formation and stitch or hole 5, therefore 2 seams or hole 5 are arranged in groove 4, be the both sides of groove 4 respectively have 1 (in fact seam in the groove 4 or hole 5 have only 1 also passable, just be unfavorable for plastics outside steel pipe, enter in the steel pipe and inside and outside layer plastics and steel pipe between combine).Certainly, groove 4 and seam thereof or hole 5 also can process with methods such as die castings and be with the steel band in groove 4, protruding bridge 6 and seam or hole 5 to be rolled into steel pipe again.In addition, also can make groove 4 and protruding bridge 6 with mould through punching press earlier, make seam or hole 5 in the groove 4 again with machine-tooled method then, this method is all right after a little while in groove 4 quantity, but quantity then processing cost and difficulty can increase for a long time.
From as can be known above-mentioned, the inner plastic 1 of steel-plastic composite pipe with bridge type framework of the present invention is that plastics enter outside middle level steel pipe 3 in it and form, inner plastic 1, the bonding that is interweaved between outer layer plastic 2 and the middle level steel pipe 3 is interlocked, the plastics of 5 fillings of the seam of particularly same intercept upper groove 4 or hole form as a ribbon, numerous ribbons tightly wrap steel pipe, add in 6 pairs on middle level steel pipe 3 surface fluted 4 and the protruding bridge, the positioning action of outer layer plastic, therefore, steel pipe with in, link as the knitmesh interlock that is interweaved between the outer layer plastic, very sealing combines securely, as shown in Figure 2.
In order to strengthen the anticorrosive property of middle level steel pipe 3, the internal surface of middle level steel pipe 3 and outer surface also have one deck zinc-plated.Simultaneously, more firm in order to strengthen combine between middle level steel pipe 3 and the inside and outside layer plastics, make the steel-plastic composite pipe performance more excellent, reaching between the internal surface of middle level steel pipe 3 and the inner plastic 1 between the outer surface of middle level steel pipe 3 and the outer layer plastic 2 has one deck hot melt adhesive bonding.
In sum, steel-plastic composite pipe of the present invention utilizes groove 4, protruding bridge 6 and the seam of middle level steel pipe 3 or hole 5 to form the bridge type framework structure that internal surfaces and outer surface all are concavo-convex alternate shape, make this composite pipe have intensity height, good rigidly, in light weight, shock resistance, corrosion-resistant, the pressure loss is little, steel moulds that combination seal is firm, cost is low, good burning resistance and heat insulating ability are arranged and effectively weaken characteristics such as hydraulic shock noise.
Claims (8)
1. steel-plastic composite pipe with bridge type framework, mainly coating middle level steel pipe (3) by inner plastic (1) and outer layer plastic (2) constitutes, it is characterized in that: the interior or outer surface of described middle level steel pipe (3) is distributed with groove (4), the protruding bridge (6) that the outer or internal surface of middle level steel pipe (3) then fluted (4) bottom land convexes to form, the internal surface of described middle level steel pipe (3) and outer surface seam or hole (5) in groove (4) are conducted.
2. steel-plastic composite pipe with bridge type framework according to claim 1 is characterized in that: described seam or hole (5) have 2 and lay respectively in the relative both sides of groove (4).
3. steel-plastic composite pipe with bridge type framework according to claim 1 and 2 is characterized in that: described seam or hole (5) add groove in man-hour (4) bottom land and separate and form with middle level steel pipe (3) tube wall.
4. steel-plastic composite pipe with bridge type framework according to claim 1 and 2 is characterized in that: the bonding that is interweaved between described inner plastic (1), outer layer plastic (2) and the middle level steel pipe (3) is interlocked.
5. steel-plastic composite pipe with bridge type framework according to claim 1 and 2 is characterized in that: (4) at least 2 of described grooves and being evenly distributed in interval on the surface of middle level steel pipe (3).
6. steel-plastic composite pipe with bridge type framework according to claim 1 and 2 is characterized in that: described middle level steel pipe (3) internal surface and outer surface all are concavo-convex alternate shape.
7. steel-plastic composite pipe with bridge type framework according to claim 1 and 2 is characterized in that: described middle level steel pipe (3) internal surface and outer surface all have one deck zinc-plated.
8. steel-plastic composite pipe with bridge type framework according to claim 1 and 2 is characterized in that: have one deck hot melt adhesive bonding between the internal surface of described middle level steel pipe (3) and the inner plastic (1) and between the outer surface of middle level steel pipe (3) and the outer layer plastic (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100364865A CN100400951C (en) | 2005-08-12 | 2005-08-12 | Steel-plastic composite pipe with bridge type framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100364865A CN100400951C (en) | 2005-08-12 | 2005-08-12 | Steel-plastic composite pipe with bridge type framework |
Publications (2)
| Publication Number | Publication Date |
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| CN1730998A CN1730998A (en) | 2006-02-08 |
| CN100400951C true CN100400951C (en) | 2008-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100364865A Expired - Fee Related CN100400951C (en) | 2005-08-12 | 2005-08-12 | Steel-plastic composite pipe with bridge type framework |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102493A (en) * | 2011-03-11 | 2011-06-22 | 中国海洋石油总公司 | High-intensity compound tube |
| CN103070158A (en) * | 2011-10-26 | 2013-05-01 | 成都酷玩网络科技有限公司 | Sprayer-dedicated tube |
| CN102563241B (en) * | 2012-01-09 | 2015-01-07 | 绍兴龙泽管道有限公司 | D-shaped spiral corrugated pipe |
| CN102537541A (en) * | 2012-01-09 | 2012-07-04 | 浙江双林机电科技有限公司 | Round pipe framework type large-caliber corrugated pipe and manufacturing method |
| CN102705604B (en) * | 2012-01-20 | 2015-01-07 | 杭州金民管业有限公司 | Hollow concave-convex corrugated pipe and manufacture method thereof |
| CN104875314B (en) * | 2014-02-27 | 2019-03-29 | 靳宏杰 | It is a kind of to mould the modeling aluminium complex method for having fin in aluminium composite heating radiator aluminium alloy extrusions pipeline |
| CN107654747B (en) * | 2017-09-05 | 2023-08-25 | 河南金铨塑业有限公司 | High-strength cracking-resistant plastic composite pipe |
| DE102019132875A1 (en) * | 2018-12-26 | 2020-07-02 | Hyundai Motor Company | COMPOSITE MATERIAL SOCKET |
| CN113119532A (en) * | 2019-12-30 | 2021-07-16 | 泗阳联欣塑业有限公司 | High-strength modified plastic composite pipe and manufacturing process thereof |
| CN112628484B (en) * | 2020-10-23 | 2022-12-16 | 孟建军 | Self-sealing type composite pipe seal and pipe fitting formed by same |
| CN113217717A (en) * | 2021-04-19 | 2021-08-06 | 四川比耐斯管业有限公司 | Plastic-lined composite pipe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514201Y (en) * | 2001-09-06 | 2002-10-02 | 王金桥 | Special plastic-steel skeleton screw composite pipe |
| CN2602243Y (en) * | 2002-08-23 | 2004-02-04 | 夏秋春 | Rotationally molded steel-plastic multiple tube with inside and outside anticorrosive coating |
| CN2856668Y (en) * | 2005-08-12 | 2007-01-10 | 蔡海华 | Steel/plastic composite tube with bridge type skeleton |
-
2005
- 2005-08-12 CN CNB2005100364865A patent/CN100400951C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514201Y (en) * | 2001-09-06 | 2002-10-02 | 王金桥 | Special plastic-steel skeleton screw composite pipe |
| CN2602243Y (en) * | 2002-08-23 | 2004-02-04 | 夏秋春 | Rotationally molded steel-plastic multiple tube with inside and outside anticorrosive coating |
| CN2856668Y (en) * | 2005-08-12 | 2007-01-10 | 蔡海华 | Steel/plastic composite tube with bridge type skeleton |
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| CN1730998A (en) | 2006-02-08 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: KELONG flying (Qingyuan) Pipe Industry Co., Ltd. Assignor: Cai Haihua Contract record no.: 2011440000865 Denomination of invention: Steel-plastic composite pipe with bridge type framework Granted publication date: 20080709 License type: Exclusive License Open date: 20060208 Record date: 20110809 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20160812 |