CN105156771B - Double metal spiral steel pipe and preparation method thereof - Google Patents
Double metal spiral steel pipe and preparation method thereof Download PDFInfo
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- CN105156771B CN105156771B CN201510600760.0A CN201510600760A CN105156771B CN 105156771 B CN105156771 B CN 105156771B CN 201510600760 A CN201510600760 A CN 201510600760A CN 105156771 B CN105156771 B CN 105156771B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
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Abstract
The invention discloses a kind of double metal spiral steel pipe and preparation method thereof, described steel pipe includes body, this tube surfaces stretches out and forms the convex tendon arranged along tube wall spiral, this convex tendon forms groove with tube surfaces, and it is provided with steel band in the auxiliary that can cover this groove notch, fill concrete in hollow cavity, and this hollow cavity is formed between steel band in described groove and auxiliary.Advantage is that the convex tendon of this tube wall is one-body molded with body, no-welding-seam between the two, is resistant to dynamic load when bearing dynamic loading tired；Steel band in the inboard wall of tube body auxiliary with special metal material, can improve anti-corrosive properties and the wearability of steel pipe, it is to avoid the pollution of fluid, and the thickness that also can make steel pipe main body is thinning, reduces material cost；This pipeline can be used for carrying water or the occasion of special media, such as, supply water, draining or have the strong medium of corrosivity, degree of purity requires higher medium and the high medium etc. of temperature, greatly reduces manufacturing cost.
Description
Technical field
The invention discloses a kind of steel pipe and preparation method thereof, particularly relate to a kind of double metal spiral steel pipe and making side thereof
Method.
Background technology
At present, in the conveying and transmisson and storage project of fluid, be usually and carry with pipeline, conventional pipeline have pipe of cement,
Plastic tube, common straightcarbon steel steel pipe, stainless steel tube and coating steel pipe etc..Wherein, pipe of cement is with cement and reinforcing bar conduct
Material, uses a kind of prefabricated pipeline that centrifugal principle manufactures, but easily leaks, internal pressure-resistant ability；And bore is little,
General bore is 3 meters or less than 3 meters；Every pipe joint length is the longest, and joint is many, and joint is easily revealed, constructional difficulties；Construction
Shi Yaoxian does basis, and construction cost is higher.Plastic tube is with plastic resin as raw material, adds stabilizer and other additive,
Form through extrusion process in tuber, light weight；Easy to process, but bore is little, holds internal pressure capability poor；Machinery
Intensity is low, and anti-damage performance is poor；The most wear-resistant, non-refractory is the most aging.Common straightcarbon steel steel pipe is to use carbon element steel
The steel pipe become, inwall is the most wear-resisting and the most corrosion-resistant, and it is too big that bore can not do, and during heavy caliber, wall thickness is greatly increased, cost
Height, more domestic provinces the most clearly forbid using common straightcarbon steel steel pipe in water supply project.Stainless steel tube then becomes
Ben Taigao.Coating steel pipe bore can not be too big, and zinc-plated be to pollute industry, big to environmental disruption, universal zinc coat is relatively thin,
General thickness is less than 0.1mm, the most wear-resistant and wash away.Existing common bimetallic steel pipe, outer tube typically uses common mark
Quasi-steel pipe, wall thickness is relatively thicker, does not save material, and inner tube and outer tube are suits, easy delamination and coming off, and bore can not
Too big, can only achieve 1.2 meters to 1.5 meters, inner tube to have enough thickness to support own form, and wall thickness is commonly greater than 2mm
Even 4mm, does not save material.
The applicant is devoted for years to the research in this field, and has a Patent No. 201410477708.6, entitled
The patent for invention of " spiral steel pipe of a kind of band reinforcing ring and preparation method thereof ", in this patent, reinforcing ring and main body steel
Pipe can make respectively, is then welded.Have following defects that 1., body and reinforcing ring be two single parts,
Being integrated by solder design, when reinforcing ring stress, weld seam is area of stress concentration, has cracking hidden danger；2., at volume corner bevelling
During song, owing to weld seam is in the outside in machining deformation district, weld seam Tensile, deformation is big, easily ftractures；3., pipe
If body is for a long time by dynamic loading, such as subway, vehicle etc., weld seam easily ftractures because dynamic load is tired；4., in view of this class pipe
Body structure is semi-compliant structure thing, particularly during major diameter body, to pipeclay jointly by stress effect (i.e. body and surrounding
Backfill earth cooperation deformation) dependence relatively big, the rigidity of body self should be increased, to avoid bigger deformation.
It would therefore be highly desirable to solve above-mentioned technical barrier.
Summary of the invention
Goal of the invention: the first object of the present invention is to provide the double of a kind of heavy caliber high-strength, raising anti-corrosive properties and wearability
Metal spiral steel pipe；
The second object of the present invention is to provide the manufacture method of this steel pipe.
Technical scheme: steel pipe of the present invention, including body, described tube surfaces stretches out formation along tube wall
The convex tendon that spiral is arranged, this convex tendon forms groove with body, and is provided with steel band in the auxiliary that can cover this groove notch, institute
State and form fill concrete in hollow cavity, and this hollow cavity between groove and the interior steel band of auxiliary.
In the present invention, the material of steel pipe main body is carbon steel；In auxiliary, steel band can cover whole inboard wall of tube body, it is also possible to covers
Cover inboard wall of tube body；In this auxiliary, steel band can select special steel alloy, rustless steel, abrasion-resistant stee, aluminum or copper etc., energy
Improving the anticorrosive property of inboard wall of tube body, the thickness simultaneously making main steel can be thinning, reduces material cost.
Certainly, in described auxiliary, between steel band and groove, it is additionally provided with the closure steel band for blocking groove notch.
The another kind of steel pipe of the present invention, including body, described tube surfaces stretches out formation along the setting of tube wall spiral
Convex tendon, this body and convex tendon form groove, and are provided with the closure steel band that can block this groove notch, described groove and envelope
Form fill concrete in hollow cavity, and this hollow cavity between stifled steel band, meanwhile, be positioned at below waterline
Inboard wall of tube body is provided with steel band in auxiliary.
The cross section of described convex tendon is Ω shape, grooved, waveform, semicircle, parabola shaped or trapezoidal.
In the steel pipe of the present invention, body by simultaneously having at least one row's convex tendon, another side be correspondingly formed the main steel band of groove,
And the common helically coiling of steel band forms in the auxiliary covering this groove notch, in this auxiliary, steel band can strengthen main steel band
Delivery power, it is to avoid during winding, steel band deforms.
The manufacture method of double metal spiral steel pipe of the present invention, comprises the steps:
A, prepare main steel band and auxiliary in steel band；
B, this main steel band have the first opposite side and the second opposite side, and main steel band is bent into the steel band of band convex tendon, this convex tendon edge
First opposite side interval of main steel band is arranged, and consistent with the length of the second opposite side, and forms groove with main steel band；
C, steel band in auxiliary is fitted in main steel band groove notch position, to form compound steel band, the most described convex tendon
And in auxiliary, between steel band, form hollow cavity；
D, by this compound ribbon spiral winding formed band spiral type hollow cavity body；
E, on request length cut off body, in the incision of body two ends convex tendon is welded main steel band and assisted between steel band
Gap；
F, pour into a mould concrete from the incision of body one end convex tendon, until concrete is from the otch of this body other end convex tendon
Place flows out, and is full of concrete in hollow cavity, i.e. completes to make.
In step C, first fit at main steel notch with groove with closure steel band, then on closure steel band in laminating auxiliary
Steel band, to form compound steel band, then according to A-F step, completes steel pipe manufacturing.
Inventive principle: the present invention applies the common Force principle of pipeclay and concrete steel pipe principle, the common stress of pipeclay simultaneously
Principle be pipeline after embedding, the upper load of pipeline is not that the rigidity in tube road is born, but tube road and surrounding soil
Stone stress each other acts on jointly, is the formation of pipeclay jointly by stress effect, and load vertically downward will be converted into pipe
The ring inward pressure of body tube wall.The operation principle of concrete steel pipe is at hollow steel casing pack concrete, utilizes coagulation
The superior bearing capacity of soil and the encapsulation to concrete of steel pipe, make the vertical bearing capacity of steel pipe increase greatly
By force.Ordinary carbon steel, rustless steel and three kinds of materials of concrete are organically integrated by the present invention, and give full play to each
Feature and advantage, overall structure undertakes different effects respectively.
Form the convex tendon of complete closure at spiral steel pipe outer wall, be possible not only to increase tube wall circumference the moment of inertia, make the wall of main steel band
The general thickness of steel pipe of thickness rate is the most thinning, reduces the cost of material, can manufacture the steel pipe of heavy caliber and super large caliber；When
When main steel are relatively thin, during volume circle, delivery power can make steel band bend, it is impossible to carries out delivering volume circle, so main steel band is first
First it is molded into cross section with convex rib structure, then with steel band welding in auxiliary, forms closed form, steel band cross-sectional area and used
Property square increase, volume bowlder deliver be easily achieved, it is simple to processing；Most importantly, convex tendon is directly integrally added by body
, the most there is not weld seam in work molding, there is not area of stress concentration, without cracking hidden danger；Steel pipe rigidity is carried simultaneously
Height, pipeclay jointly by stress effect (i.e. body and around backfill earth cooperation deformation) in be not likely to produce moderate finite deformation, can
Well to bear the dynamic loading caused by extraneous vibration, such as subway, vehicle etc..Meanwhile, inboard wall of tube body all or
Part is provided with steel band in auxiliary, can avoid or reduce fluid corrosion, abrasion and the pollution of main steel pipe convection cell to main steel pipe,
Also being provided with the interior steel band of auxiliary just because of pipe interior, the thickness of main steel again can be the most thinning, and due in auxiliary
Steel band has been selected special substance thus has been substantially increased steel pipe corrosion-proof and anti-wear performance.Additionally, by filling in hollow cavity
Note plain concrete or armored concrete, substantially increase the radial direction of convex tendon inwall and the anti-pressure ability of hoop.During buried use,
At pipeclay jointly under effect by stress effect, convex tendon and interior concrete thereof bear circumferential pressure jointly, improve pipe further
The bulk strength of body, thus can the thickness of slab of further thinning main steel, further reduce material cost.
Beneficial effect: compared with prior art, the present invention has following remarkable advantage: first, the convex tendon of this tube wall
One-body molded with body, no-welding-seam between the two, it is resistant to dynamic load when bearing dynamic loading tired；Secondly, inboard wall of tube body
Steel band in auxiliary with special metal material, can improve anti-corrosive properties and the wearability of steel pipe, it is to avoid the pollution of fluid,
The thickness that also can make steel pipe main body is thinning, reduces material cost；Meanwhile, inboard wall of tube body also can arrange closure steel band, its
With convex tendon formed hollow cavity, and can in this hollow cavity fill concrete, this closure steel band can be additionally used in undertake pipe in
Medium, to the pressure of steel band in auxiliary, prevents from assisting interior steel band to deform in groove；Finally, this pipeline can be used for carrying water
Or the occasion of special media, such as supply water, draining or there is the strong medium of corrosivity, degree of purity is required higher medium
And the medium etc. that temperature is high, greatly reduce manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the cross sectional representation of the main steel band of the present invention；
Fig. 2 is the structural representation that surface has the main steel band of convex tendon；
Fig. 3 is the cross sectional representation that surface has the main steel band of convex tendon；
Fig. 4 is the schematic diagram of the main steel band of the present invention and closure steel band welding position；
Fig. 5 is the schematic diagram of the interior steel band welding position of the main steel band of the present invention, closure steel band and auxiliary；
Fig. 6 is the partial enlarged drawing in Fig. 5 at A；
Fig. 7 is the partial enlarged drawing in Fig. 5 at B；
Fig. 8 is the partial enlarged drawing in Fig. 5 at C；
Fig. 9 is the schematic diagram that the compound ribbon spiral of the present invention rolls processing；
Figure 10 is the axonometric chart after spiral steel pipe of the present invention rolls；
Figure 11 is the butt-welded cross sectional representation of tube coupling during steel pipe spiral of the present invention rolls；
Figure 12 is partial enlarged drawing at D in Figure 11；
Figure 13 single-unit of the present invention steel pipe overall structure schematic diagram；
Figure 14 is steel pipe transverse cross section structure schematic diagram of the present invention；
Figure 15 is longitudinal cross-section of the present invention structural representation；
Figure 16 is the cross sectional representation that inwall of the present invention all covers the body of the interior steel band of auxiliary；
Figure 17 is the cross sectional representation that inner wall section of the present invention covers the body of the interior steel band of auxiliary.
Detailed description of the invention
Below in conjunction with the accompanying drawings technical scheme is described further.
The steel pipe of the present invention, including body 100, including body 100, described body 100 surface stretches out and forms edge
The convex tendon 102 that tube wall spiral is arranged, this body 100 and convex tendon 102 form groove 103, steel band 200 in auxiliary
Cover and form hollow cavity 300 between the interior steel band 200 of this groove notch position, groove 103 and auxiliary, and this is hollow
Fill concrete 400 in cavity 300.
In the present invention, tube wall has convex rib structure, is greatly improved the cross sectional moment of inertia of main pipe, this moment of inertia ratio
General reinforcement mode improves a lot, and bearing capacity improves, and makes to make the general thickness of steel pipe of wall ratio of the main steel band of body
The most thinning, reduce material cost；Meanwhile, main steel coil strip bowlder can realize thin plate and deliver, and curling process is broken through.On
Stating the cross section of convex tendon can be Ω shape, grooved, waveform, semicircle, parabola shaped or trapezoidal.
The present invention is double metal spiral steel pipe, and in " bimetallic " therein refers to steel pipe main body and auxiliary, steel band is respectively adopted two
Plant metal material.Wherein, in auxiliary, steel band both can cover whole inboard wall of tube body, it is also possible to covering part inboard wall of tube body,
Wherein, covering part inboard wall of tube body is the notch position covering body groove, thus forms hollow cavity.Steel in auxiliary
Band is selected and is included but not limited to that the special metal materials such as special steel alloy, rustless steel, abrasion-resistant stee, aluminum or copper are made, its energy
Improving the anticorrosive property of inboard wall of tube body and wearability, it is to avoid the pollution of fluid, the thickness simultaneously again making main steel is permissible
Thinning, reduce material cost, simultaneously in this auxiliary steel band also can strengthen main steel coil strip around time delivery power, it is to avoid winding
Time main steel band deform.And steel pipe main body can use cheap ordinary carbon steel, it is also possible to reduce cost.
The closure steel band 500 for blocking groove notch it is additionally provided with between steel band and groove in auxiliary.This closure steel band one
The groove closure that main body steel pipe is formed by aspect at inwall, on the other hand can undertaking pipe, medium is to the pressure of steel band in auxiliary
Power, prevents from assisting interior steel band to deform in groove；Auxiliary in steel band select include but not limited to special steel alloy, rustless steel,
The metal materials such as abrasion-resistant stee, aluminum or copper are made.
In the present invention, filling plain concrete or armored concrete in hollow cavity, body overall radial and ring can be enhanced
To anti-pressure ability, the general thickness of steel pipe of wall ratio making main steel band is the most thinning, thus reduces the cost of material further.
The steel pipe of the present invention is used for carrying special media, such as, have corrosive medium, higher to degree of purity requirement
Medium and the high medium etc. of temperature, can be used for feed pipe or drain pipe；Conveying sandstone, dust；Municipal sewage and industry are dirty
Water；Chemical industry fluid；High-temperature medium；Seawater pipeline；Collector pipe；The pipeline of other conveying special medias.Pipeline lower half
Divide (leaking water or other media fraction) corrosion-vulnerable, protection should be strengthened, thus form another kind of steel pipe.
This steel pipe includes body, and including body 100, described body 100 surface stretches out formation along tube wall spiral
The convex tendon 102 arranged, this body 100 forms groove 103 with convex tendon 102, and is provided with the envelope that can block this groove notch
Stifled steel band, fill concrete in formation hollow cavity, and this hollow cavity between described groove and closure steel band, meanwhile,
The inboard wall of tube body be positioned at below waterline is provided with auxiliary steel band.
The present invention can produce the steel pipe of super large caliber (up to diameter 8 meters or more than 8 meters)；When it is used as underground pipe
Time, utilize pipeclay to share by stress effect, the concrete of convex tendon and inside thereof be that master bears pressure, during super-large diameter
(D > 4m), can bury soil and the most deeply be up to more than 10～35 meters.
The manufacture method of double metal spiral steel pipe of the present invention, comprises the steps:
A, prepare main steel band and auxiliary in steel band；
B, this main steel band 101 have the first opposite side 107 and the second opposite side 108, and main steel band 101 is bent into band convex tendon
The steel band of 102, this convex tendon 102 along main steel band 101 first opposite side 107 interval arrange, and with the second opposite side 108
Length is consistent, and forms groove 103 with main steel band 101；
C, steel band in auxiliary is fitted in main steel band groove notch position, to form compound steel band, the most described convex tendon
And in auxiliary, between steel band, form hollow cavity；
D, by this compound ribbon spiral winding formed band spiral type hollow cavity body；
E, on request length cut off body, in the incision of body two ends convex tendon is welded main steel band and assisted between steel band
Gap；
F, pour into a mould concrete from the incision of body one end convex tendon, until concrete is from the otch of this body other end convex tendon
Place flows out, and is full of concrete in hollow cavity, i.e. completes to make.
In step C, first fit at main steel notch with groove with closure steel band, then on closure steel band in laminating auxiliary
Steel band, to form compound steel band, then according to A-F step, completes steel pipe manufacturing.
Embodiment 1: inwall all covers the body of the interior steel band of auxiliary
First, according to the diameter of the spiral welded steel pipe of required making, helix tube molding machine is transferred to suitable forming angle.
Secondly, carry out main steel band 101 eliminating rust, after bead, pass it through shaping machine set and be rolled into there is certain pedometer
The cross sectional shape of downwardly convex (quantity, size are pressed practical situation and set) then, is referred to as " convex tendon 102 " in the present invention,
Accordingly, forming groove 103 above convex tendon 102, then the dual-side at main steel band reprocesses welding groove 104,
As Figure 1-3.Then, with a number of closure steel band 500 be laid on main steel belt molding good after groove 103
Both are welded by notch position, to form the hollow cavity 300 of Guan Bi, as shown in Figure 4.At main steel band 101
And the upper surface of closure steel band 500, steel band 200 in paving a plurality of (quantity is pressed practical situation and set) auxiliary side by side, should
In auxiliary, steel band 200 is the band of the special metal material through unreeling, after leveling, the operation such as deburring with one fixed width,
Leaving the gap of 1-2mm in adjacent auxiliary between steel band 200, meanwhile, in auxiliary, steel band 200 dual-side is slightly shorter than
The length of main steel band 101.Same portion will be carried out with by steel band in adjacent auxiliary 200 and main steel band 101 with gas shielded arc welding
Position Trinity welding, welds the dual-side of steel band 200 in auxiliary with main steel band 101, before welding, in auxiliary simultaneously
Open air and moisture in aperture extraction interlayer on interior steel band, then aperture soldering and sealing and polish, be so conducive to interlayer inner tubal wall
Antirust so that main body steel pipe with auxiliary in steel pipe laminating, as viewed in figures 5-8, so obtained compound steel band.
The compound steel band of above-mentioned formation is sent into furling plate round machine structure 700 (1# roller 701,2# roller 702,3# roller 703) and carries out spiral
Roll processing, as shown in figs. 9-10.While spiral rolls, the spiral weld 105 between tube coupling and tube coupling is adopted
Weld with submerged-arc welding, as depicted in figs. 11-12, meanwhile, Y is processed at the position to be welded between tube coupling and tube coupling
Type groove, beneficially different materials use different welding methods.Thus roll into a kind of double metal spiral welded still pipe,
As shown in figure 13.When steel pipe spiral rolls after welding reaches requirement length, by steel pipe cutting, then convex by steel pipe two ends
Between muscle otch 106, main steel band 101 welds, as shown in figure 14 with the gap 600 of steel band 200 in auxiliary.Again from steel pipe
Plain concrete or armored concrete is filled inward at one end convex tendon otch 106, until from steel pipe other end convex tendon otch 106
Place flows out, then be full of concrete 400 in hollow cavity, as shown in figure 15；It is finally completed double metal spiral steel pipe of the present invention
Make, as shown in figure 16.
Embodiment 2: inner wall section covers the body of the interior steel band of auxiliary
First, according to the diameter of the spiral welded steel pipe of required making, helix tube molding machine is transferred to suitable forming angle.
Secondly, carry out main steel band 101 eliminating rust, after bead, pass it through shaping machine set and be rolled into there is certain pedometer
The cross sectional shape of downwardly convex (quantity, size are pressed practical situation and set) then, is referred to as " convex tendon 102 " in the present invention,
Accordingly, forming groove 103 above convex tendon 102, then the dual-side at main steel band reprocesses welding groove 104.
Then, with a number of closure steel band 500 be laid on main steel belt molding good after the notch position of groove 103, by two
Person welds, and to form the hollow cavity 300 of Guan Bi, has so obtained compound steel band.Being combined above-mentioned formation
Steel band of model feeding furling plate round machine structure 700 (1# roller 701,2# roller 702,3# roller 703) carries out spiral and rolls processing.At spiral
While rolling, use submerged-arc welding to weld the spiral weld 105 between tube coupling with tube coupling, meanwhile, by tube coupling with
Position to be welded between tube coupling is processed into Y type groove, beneficially different materials and is used different welding methods.Thus roll up
Make a kind of double metal spiral welded still pipe.Then at the latter half of steel pipe inner wall i.e. waterline with lower portion welding auxiliary
Interior steel band.When steel pipe spiral rolls after welding reaches requirement length, by steel pipe cutting, then by the convex tendon otch at steel pipe two ends
Between 106, main steel band 101 welds with the gap 600 of steel band 200 in auxiliary.Past at steel pipe one end convex tendon otch 106 again
In fill plain concrete or armored concrete, until flowing out at steel pipe other end convex tendon otch 106, then in hollow cavity
It is full of concrete 400；It is finally completed double metal spiral steel pipe manufacturing of the present invention, as shown in figure 17.
Claims (9)
1. a double metal spiral steel pipe, it is characterised in that: include body (100), described body (100) surface to
Outer extension forms the convex tendon (102) arranged along tube wall spiral, and this convex tendon (102) is formed with body (100) surface
Groove (103), and steel band (200) in the auxiliary that can cover groove (103) notch it is formed with by gas shielded arc welding,
Hollow cavity (300) is formed between steel band (200) in described groove (103) and auxiliary；Steel band (200) in described auxiliary
Material be special steel alloy, rustless steel, abrasion-resistant stee, aluminum or copper；The material of described body (100) is carbon steel or not
Rust steel.
Double metal spiral steel pipe the most according to claim 1, it is characterised in that: steel band (200) in described auxiliary
And between groove (103), it is additionally provided with the closure steel band (500) for blocking groove (103) notch.
3. a double metal spiral steel pipe, it is characterised in that: include body (100), described body (100) surface to
Outer extension forms the convex tendon (102) arranged along main outer wall of steel pipe spiral so that the longitudinal section of body (100) forms groove
(103), and it is provided with the closure steel band (500) that can block groove (103) notch, described groove (103) and closure steel
Form hollow cavity (300) between band (500), meanwhile, the inboard wall of tube body be positioned at below waterline is provided with auxiliary
Interior steel band (200).
4. according to the double metal spiral steel pipe described in claim 1 or 3, it is characterised in that: in described hollow cavity (300)
Interior fill concrete (400).
5. according to the double metal spiral steel pipe described in claim 1 or 3, it is characterised in that: described convex tendon (102)
Cross section is Ω shape, grooved, waveform, semicircle, parabola shaped or trapezoidal.
Double metal spiral steel pipe the most according to claim 3, it is characterised in that: steel band (200) in described auxiliary
Material be special steel alloy, rustless steel, abrasion-resistant stee, aluminum or copper；The material of described body (100) is carbon steel or not
Rust steel.
The manufacture method of double metal spiral steel pipe the most according to claim 1, it is characterised in that comprise the steps:
A, prepare main steel band (101) and auxiliary in steel band (200)；
B, this main steel band (101) have the first opposite side (107) and the second opposite side (108), by curved for main steel band (101)
Being converted into the steel band of band convex tendon (102), this convex tendon (102) sets along the first opposite side (107) interval of main steel band (101)
Put, and consistent with the length of the second opposite side (108), and form groove (103) with main steel band (101)；
In C, general's auxiliary, steel band (200) fits in main steel band groove (103) notch position, to form compound steel band,
Hollow cavity (300) is formed between steel band (200) in the most described convex tendon (102) and auxiliary；
D, by this compound ribbon spiral winding formed band spiral type hollow cavity body (100)；
E, on request length cut off body (100), and the incision welding at body (100) two ends convex tendon (102) is main
Gap (600) between steel band (101) and the interior steel band (200) of auxiliary.
The manufacture method of double metal spiral steel pipe the most according to claim 7, it is characterised in that: in step C, first
Closure steel band (500) is fitted at the notch of main steel band groove (103), then in the upper laminating of closure steel band (500)
Steel band (200) in auxiliary, to form compound steel band.
The manufacture method of double metal spiral steel pipe the most according to claim 7, it is characterised in that: after completing step E,
Carry out step F: the incision from body (100) one end convex tendon (102) pours into a mould concrete (400), until concrete
(400) flow out from the incision of this body (100) other end convex tendon (102), be then full of in hollow cavity (300)
Concrete.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510600760.0A CN105156771B (en) | 2015-09-18 | 2015-09-18 | Double metal spiral steel pipe and preparation method thereof |
| PCT/CN2016/082936 WO2017045426A1 (en) | 2015-09-18 | 2016-05-22 | Bimetal spiral steel pipe and manufacturing method therefor |
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| CN201510600760.0A CN105156771B (en) | 2015-09-18 | 2015-09-18 | Double metal spiral steel pipe and preparation method thereof |
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| CN105156771A CN105156771A (en) | 2015-12-16 |
| CN105156771B true CN105156771B (en) | 2016-09-28 |
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| CN105156771B (en) * | 2015-09-18 | 2016-09-28 | 南京联众建设工程技术有限公司 | Double metal spiral steel pipe and preparation method thereof |
| KR102305430B1 (en) * | 2019-12-11 | 2021-09-27 | 주식회사 포스코 | Spiral Tube |
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| CN203404502U (en) * | 2013-06-09 | 2014-01-22 | 宝鸡石油钢管有限责任公司 | Spiral seam thermo-metal composite welded pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5121559A (en) * | 1974-08-19 | 1976-02-20 | Nippon Steel Corp | RASENJOHOGOZAITSUKINZOKUKANNO SEIZOHOHO |
| KR100718869B1 (en) * | 2007-01-03 | 2007-05-16 | 대한강관 주식회사 | Steel ribbed pipe |
| KR101206104B1 (en) * | 2012-07-13 | 2012-12-03 | 주식회사 보국산업 | A steel ribbed pipe for preventing water leak |
| CN205173741U (en) * | 2015-09-18 | 2016-04-20 | 南京联众建设工程技术有限公司 | Bimetal spiral steel pipe |
| CN105156771B (en) * | 2015-09-18 | 2016-09-28 | 南京联众建设工程技术有限公司 | Double metal spiral steel pipe and preparation method thereof |
-
2015
- 2015-09-18 CN CN201510600760.0A patent/CN105156771B/en active Active
-
2016
- 2016-05-22 WO PCT/CN2016/082936 patent/WO2017045426A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203404502U (en) * | 2013-06-09 | 2014-01-22 | 宝鸡石油钢管有限责任公司 | Spiral seam thermo-metal composite welded pipe |
| CN203431333U (en) * | 2013-08-23 | 2014-02-12 | 湖南双马新材料科技有限公司 | Double-layer metal tube with flat inner surface and provided with reinforcing ribs on outer surface |
| CN104266006B (en) * | 2014-09-18 | 2015-05-27 | 南京联众建设工程技术有限公司 | Spiral steel pipe with reinforcing rings and manufacturing method of spiral steel pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105156771A (en) | 2015-12-16 |
| WO2017045426A1 (en) | 2017-03-23 |
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