CN102246670A - Steel plastic composite pipe for greenhouse framework and production method thereof - Google Patents
Steel plastic composite pipe for greenhouse framework and production method thereof Download PDFInfo
- Publication number
- CN102246670A CN102246670A CN2011101536510A CN201110153651A CN102246670A CN 102246670 A CN102246670 A CN 102246670A CN 2011101536510 A CN2011101536510 A CN 2011101536510A CN 201110153651 A CN201110153651 A CN 201110153651A CN 102246670 A CN102246670 A CN 102246670A
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- Prior art keywords
- pipe
- layer plastic
- plastic tube
- steel pipe
- steel
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- Pending
Links
- 239000004033 plastic Substances 0.000 title claims abstract description 93
- 229920003023 plastic Polymers 0.000 title claims abstract description 93
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 69
- 239000010959 steel Substances 0.000 title claims abstract description 69
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000000945 filler Substances 0.000 claims abstract description 19
- 238000012986 modification Methods 0.000 claims description 8
- 230000004048 modification Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 4
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 4
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 4
- 239000001095 magnesium carbonate Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 239000002253 acid Substances 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- -1 polyethylene chloride Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a steel plastic composite pipe for a greenhouse framework and a production method thereof. The steel plastic composite pipe comprises an outer-layer plastic pipe, an intermediate-layer steel pipe and an inner-layer plastic pipe which are sequentially sleeved together from outside to inside; a supporting device for an inner pipe and an outer pipe is arranged on the intermediate-layer steel pipe, wherein the outer end part of the supporting device is supported against the inner wall of the outer-layer plastic pipe; the inner end part of the supporting device is supported against the outer wall of the inner-layer plastic pipe; filler for fastening the outer-layer plastic pipe, the intermediate-layer steel pipe and the inner-layer plastic pipe together is filled between the outer-layer plastic pipe and the inner-layer plastic pipe; the inner pipe and the outer pipe are plastic pipes; filler is poured between the inner pipe and the outer pipe and is used for fastening the inner pipe, an intermediate pipe and the outer pipe together; the relative position relation among the inner pipe, the intermediate pipe and the outer pipe is ensured by using the supporting device between the inner pipe and the outer pipe; the steel pipe is positioned between the inner pipe and the outer pipe and is free from contact with air, thus the steel pipe can be prevented from being corroded by acid and alkali; in addition, the rigidity of the composite pipe can be ensured by using the steel pipe; and the composite pipe has the advantages of strong corrosion resistance, high rigidity and long service life.
Description
Technical field
The present invention relates to a kind of steel-plastics composite pipe, also relate to the production method of this steel-plastics composite pipe.
Background technology
At first, green house of vegetables, the skeleton of culturing booth etc. generally adopt traditional bamboo pole, rod, but bamboo pole, rod intensity are low, corrosion-resistant, and service life is short, the maintenance cost height; Along with the development and the popularization of booth technology, use steel pipe and pvc pipe to replace bamboo pole, rod gradually, but some old problems exist already, have also supervened some new problems, steel pipe corrosion-resistant, price height; Pvc pipe rigidity, intensity are low; Adopted materials such as inorganic glass-fiber reinforced plastic to do big-canopy framework more afterwards, but still there is problems such as costing an arm and a leg, install inconvenience in FRIMs etc.
Summary of the invention
Technical problem to be solved by this invention provides that a kind of corrosion resistance is strong, intensity is big, the big-canopy framework steel-plastics composite pipe of simple and long service life is installed.
For solving the problems of the technologies described above, technical scheme of the present invention is: the big-canopy framework steel-plastics composite pipe, comprise that ecto-entad is sleeved on outer layer plastic tube, middle level steel pipe and inner layer plastic tube together successively, be equipped with on the steel pipe of described middle level that the outer end is resisted against described outer layer plastic inside pipe wall, inner end is resisted against the inner and outer pipes bracing or strutting arrangement on the described inner layer plastic tube outer wall, be filled with the filler that described outer layer plastic tube, described middle level steel pipe and described inner layer plastic tube are tightened together between described outer layer plastic tube and the described inner layer plastic tube.
As a kind of optimized technical scheme, described inner and outer pipes bracing or strutting arrangement comprises and is fixedly mounted on the inner and outer pipes supporting pin that is circumferential distribution on the steel pipe walls of described middle level.
As a kind of optimized technical scheme, described outer layer plastic tube and described inner layer plastic tube are modification UPVC pipe or other plastic tubes.
As a kind of optimized technical scheme, described filler is the magnesite modification material.
Owing to adopted technique scheme, the big-canopy framework steel-plastics composite pipe, comprise that ecto-entad is sleeved on outer layer plastic tube, middle level steel pipe and inner layer plastic tube together successively, be equipped with on the steel pipe of described middle level that the outer end is resisted against described outer layer plastic inside pipe wall, inner end is resisted against the inner and outer pipes bracing or strutting arrangement on the described inner layer plastic tube outer wall, be filled with the filler that described outer layer plastic tube, described middle level steel pipe and described inner layer plastic tube are tightened together between described outer layer plastic tube and the described inner layer plastic tube; Inner and outer pipes adopts plastic tube, pour into a mould filler between the inner and outer pipes, interior pipe, middle pipe and outer tube are tightened together, bracing or strutting arrangement between the inner and outer pipes has guaranteed the relative position relation between three pipes, steel pipe is between inner and outer pipes, do not contact, can avoid acid and alkali corrosion, and steel pipe can guarantee the rigidity of multiple tube with air; This multiple tube corrosion resistance is strong, and rigidity is big, long service life.
Another technical problem to be solved by this invention provides a kind of method of producing big-canopy framework with steel-plastics composite pipe.
For solving the problems of the technologies described above, technical scheme of the present invention is: big-canopy framework comprises the steps: with the production method of steel-plastics composite pipe
Step 1:, be steel pipe by welding fabrication then with the steel band cans;
Step 2: according to the size of big-canopy framework to steel pipe blanking, boring;
Step 3: the inner and outer pipes bracing or strutting arrangement is installed on the steel pipe of middle level;
Step 4: suit outer layer plastic tube outside middle level steel pipe and inner and outer pipes bracing or strutting arrangement, suit inner layer plastic tube in middle level steel pipe and inner and outer pipes bracing or strutting arrangement;
Step 5: to pouring liquid filler between outer layer plastic tube and the middle level steel pipe, between inner layer plastic tube and the middle level steel pipe, cooled and solidified, and product carried out shaping.
As a kind of optimized technical scheme, in step 3, described inner and outer pipes bracing or strutting arrangement is the inner and outer pipes supporting pin, when being installed to described inner and outer pipes supporting pin on the steel pipe of described middle level, at first on middle steel pipe, radially get out and the same number of pin installing hole of described inner and outer pipes supporting pin, then described inner and outer pipes supporting pin is installed in the described pin installing hole.
Owing to adopted technique scheme, after the curling butt joint of steel band, formed steel pipe, steel pipe good leak tightness by solder joint; After middle level steel pipe, inner and outer pipes bracing or strutting arrangement, inner layer plastic tube and the assembling of intercellar layer plastics pipe, pouring liquid filler between inner layer plastic tube and outer layer plastic tube, cooled and solidified then, filler tightens together three layers of pipe, can increase the rigidity and the elastic force of multiple tube.
Description of drawings
Fig. 1 is the cutaway view of the embodiment of the invention;
Fig. 2 is an embodiment of the invention tomography schematic diagram;
Among the figure: the 1-outer layer plastic tube; 2-middle level steel pipe; The 3-inner layer plastic tube; 4-inner and outer pipes supporting pin; The 5-filler.
Embodiment
Below in conjunction with drawings and Examples, further set forth the present invention.In the following detailed description, only some one exemplary embodiment of the present invention has been described by the mode of explanation.Undoubtedly, those of ordinary skill in the art can recognize, under situation without departing from the spirit and scope of the present invention, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used to limit the protection domain of claim.
As depicted in figs. 1 and 2, the big-canopy framework steel-plastics composite pipe, comprise that ecto-entad is sleeved on outer layer plastic tube 1, middle level steel pipe 2 and inner layer plastic tube 3 together successively, described outer layer plastic tube 1 and described inner layer plastic tube 3 are modification UPVC (RPVC) pipe, hard polyethylene chloride tube has very strong resistance to acids and bases, be difficult for wearing out long service life; The outer end is installed on the described middle level steel pipe 2 is resisted against described outer layer plastic tube 1 inwall, inner end is resisted against the inner and outer pipes bracing or strutting arrangement on described inner layer plastic tube 3 outer walls, described inner and outer pipes bracing or strutting arrangement comprises and is fixedly mounted on the inner and outer pipes supporting pin 4 that is circumferential distribution on steel pipe 2 walls of described middle level, the quantity of inner and outer pipes supporting pin 4 can axially be provided with three or four along middle level steel pipe 2 walls, also can be more a plurality of, to satisfy instructions for use is target, axial direction along multiple tube, two groups of inner and outer pipes supporting pins 4 are set on middle level steel pipe 2 at least, one group of inner and outer pipes supporting pin 4 is to be positioned on a certain cross section of described multiple tube radially-arranged three, four or more a plurality of inner and outer pipes supporting pin 4 are one group; Inner and outer pipes supporting pin 4 can guarantee the relative position relation between outer layer plastic tube 1 and middle level steel pipe 2, middle level steel pipe 2 and the inner layer plastic tube 3; Be filled with the filler 5 that described outer layer plastic tube 1, described middle level steel pipe 2 and described inner layer plastic tube 3 are tightened together between described outer layer plastic tube 1 and the described inner layer plastic tube 3; Described filler 5 is the magnesite modification material, specifically, stirs into pasty state liquid with acid-fast alkali-proof magnesite modification material and solution by formula rate.
Big-canopy framework comprises the steps: with the production method of steel-plastics composite pipe
Step 1:, be steel pipe by welding fabrication then with the steel band cans;
Step 2: according to the size of big-canopy framework to steel pipe blanking, boring;
Step 3: the inner and outer pipes bracing or strutting arrangement is installed on middle level steel pipe 2, described inner and outer pipes bracing or strutting arrangement is an inner and outer pipes supporting pin 4, when being installed to described inner and outer pipes supporting pin 4 on the described middle level steel pipe 2, at first on middle steel pipe, radially get out and described inner and outer pipes supporting pin 4 the same number of pin installing holes, then described inner and outer pipes supporting pin 4 is installed in the described pin installing hole;
Step 4: suit outer layer plastic tube 1 outside middle level steel pipe 2 and inner and outer pipes bracing or strutting arrangement, suit inner layer plastic tube 3 in middle level steel pipe 2 and inner and outer pipes bracing or strutting arrangement;
Step 5: to pouring liquid filler 5 between outer layer plastic tube 1 and the middle level steel pipe 2, between inner layer plastic tube 3 and the middle level steel pipe 2, cooled and solidified, and product carried out shaping.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. big-canopy framework steel-plastics composite pipe, comprise that ecto-entad is sleeved on outer layer plastic tube, middle level steel pipe and inner layer plastic tube together successively, it is characterized in that: be equipped with on the steel pipe of described middle level that the outer end is resisted against described outer layer plastic inside pipe wall, inner end is resisted against the inner and outer pipes bracing or strutting arrangement on the described inner layer plastic tube outer wall, be filled with the filler that described outer layer plastic tube, described middle level steel pipe and described inner layer plastic tube are tightened together between described outer layer plastic tube and the described inner layer plastic tube.
2. big-canopy framework steel-plastics composite pipe as claimed in claim 1 is characterized in that: described inner and outer pipes bracing or strutting arrangement comprises and is fixedly mounted on the inner and outer pipes supporting pin that is circumferential distribution on the steel pipe walls of described middle level.
3. big-canopy framework steel-plastics composite pipe as claimed in claim 2 is characterized in that: described outer layer plastic tube and described inner layer plastic tube are modification UPVC pipe or other plastic tubes.
4. as claim 1,2 or 3 described big-canopy framework steel-plastics composite pipes, it is characterized in that: described filler is the magnesite modification material.
5. big-canopy framework as claimed in claim 1 is characterized in that with the production method of steel-plastics composite pipe, comprises the steps:
Step 1:, be steel pipe by welding fabrication then with the steel band cans;
Step 2: according to the size of big-canopy framework to steel pipe blanking, boring;
Step 3: the inner and outer pipes bracing or strutting arrangement is installed on the steel pipe of middle level;
Step 4: suit outer layer plastic tube outside middle level steel pipe and inner and outer pipes bracing or strutting arrangement, suit inner layer plastic tube in middle level steel pipe and inner and outer pipes bracing or strutting arrangement;
Step 5: to pouring liquid filler between outer layer plastic tube and the middle level steel pipe, between inner layer plastic tube and the middle level steel pipe, cooled and solidified, and product carried out shaping.
6. the big-canopy framework as claimed in claim 5 production method of steel-plastics composite pipe, it is characterized in that: in step 3, described inner and outer pipes bracing or strutting arrangement is the inner and outer pipes supporting pin, when being installed to described inner and outer pipes supporting pin on the steel pipe of described middle level, at first on middle steel pipe, radially get out and the same number of pin installing hole of described inner and outer pipes supporting pin, then described inner and outer pipes supporting pin is installed in the described pin installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101536510A CN102246670A (en) | 2011-06-09 | 2011-06-09 | Steel plastic composite pipe for greenhouse framework and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101536510A CN102246670A (en) | 2011-06-09 | 2011-06-09 | Steel plastic composite pipe for greenhouse framework and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102246670A true CN102246670A (en) | 2011-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101536510A Pending CN102246670A (en) | 2011-06-09 | 2011-06-09 | Steel plastic composite pipe for greenhouse framework and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102246670A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102835275A (en) * | 2012-08-21 | 2012-12-26 | 湖北飞燕科技有限公司 | Method for manufacturing multipurpose high-strength anti-aging corrosion-resistant bracket |
| CN103252943A (en) * | 2013-04-28 | 2013-08-21 | 潍坊泰潍农业科技有限公司 | Composite steel rib profile and preparation method thereof |
| CN104373803A (en) * | 2014-11-13 | 2015-02-25 | 武桂君 | Oval composite pipe and producing technology thereof |
| CN104369428A (en) * | 2014-11-13 | 2015-02-25 | 武桂君 | Square composite pipe and production process thereof |
| CN104441792A (en) * | 2014-11-13 | 2015-03-25 | 武桂君 | Circular composite pipe and production process thereof |
| CN104676237A (en) * | 2015-02-11 | 2015-06-03 | 宁波市鄞州得发铝型材配件有限公司 | Plastic-covered iron pipe and production device thereof |
| CN105804432A (en) * | 2014-12-31 | 2016-07-27 | 河南华泰建材开发有限公司 | Lightweight steel composite type villa |
| CN110583355A (en) * | 2019-08-30 | 2019-12-20 | 东莞市欣田实业有限公司 | Steel bar/fiber reinforced plastic composite support rod and preparation method thereof |
| CN112589454A (en) * | 2020-11-30 | 2021-04-02 | 浙江宏海钢管制造有限公司 | Low-temperature-resistant stress corrosion-resistant thick-wall steel pipe and processing equipment thereof |
| CN113333498A (en) * | 2021-04-28 | 2021-09-03 | 孟祥平 | Automatic machining process of stainless steel seamless steel pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2341001Y (en) * | 1998-10-01 | 1999-09-29 | 于镇旗 | Steel plastic composite pipe |
| CN1247287A (en) * | 1998-09-04 | 2000-03-15 | 阎金波 | Jacketed compound steel-plastic pipe |
| CN2612856Y (en) * | 2002-04-30 | 2004-04-21 | 李志雄 | A reinforced plating steel-plastic compound tube |
| CN1621725A (en) * | 2003-11-27 | 2005-06-01 | 李西海 | Metal-plastic composite cold/hot water pipe and manufacturing method thereof |
-
2011
- 2011-06-09 CN CN2011101536510A patent/CN102246670A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247287A (en) * | 1998-09-04 | 2000-03-15 | 阎金波 | Jacketed compound steel-plastic pipe |
| CN2341001Y (en) * | 1998-10-01 | 1999-09-29 | 于镇旗 | Steel plastic composite pipe |
| CN2612856Y (en) * | 2002-04-30 | 2004-04-21 | 李志雄 | A reinforced plating steel-plastic compound tube |
| CN1621725A (en) * | 2003-11-27 | 2005-06-01 | 李西海 | Metal-plastic composite cold/hot water pipe and manufacturing method thereof |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102835275A (en) * | 2012-08-21 | 2012-12-26 | 湖北飞燕科技有限公司 | Method for manufacturing multipurpose high-strength anti-aging corrosion-resistant bracket |
| CN103252943A (en) * | 2013-04-28 | 2013-08-21 | 潍坊泰潍农业科技有限公司 | Composite steel rib profile and preparation method thereof |
| CN103252943B (en) * | 2013-04-28 | 2016-06-08 | 潍坊泰潍农业科技有限公司 | A kind of composite steel rib profile and its preparation method |
| CN104373803A (en) * | 2014-11-13 | 2015-02-25 | 武桂君 | Oval composite pipe and producing technology thereof |
| CN104369428A (en) * | 2014-11-13 | 2015-02-25 | 武桂君 | Square composite pipe and production process thereof |
| CN104441792A (en) * | 2014-11-13 | 2015-03-25 | 武桂君 | Circular composite pipe and production process thereof |
| CN105804432A (en) * | 2014-12-31 | 2016-07-27 | 河南华泰建材开发有限公司 | Lightweight steel composite type villa |
| CN104676237A (en) * | 2015-02-11 | 2015-06-03 | 宁波市鄞州得发铝型材配件有限公司 | Plastic-covered iron pipe and production device thereof |
| CN104676237B (en) * | 2015-02-11 | 2017-05-03 | 宁波市鄞州得发铝型材配件有限公司 | Plastic-covered iron pipe and production equipment thereof |
| CN110583355A (en) * | 2019-08-30 | 2019-12-20 | 东莞市欣田实业有限公司 | Steel bar/fiber reinforced plastic composite support rod and preparation method thereof |
| CN112589454A (en) * | 2020-11-30 | 2021-04-02 | 浙江宏海钢管制造有限公司 | Low-temperature-resistant stress corrosion-resistant thick-wall steel pipe and processing equipment thereof |
| CN113333498A (en) * | 2021-04-28 | 2021-09-03 | 孟祥平 | Automatic machining process of stainless steel seamless steel pipe |
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Owner name: WEIFANG THAIWEI AGRICULTURAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JIN SHOUHAN Effective date: 20120521 |
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Effective date of registration: 20120521 Address after: The middle section of Chongwen street 261206 Shandong city of Weifang province Fangzi district (Chongwen West High School) Applicant after: Weifang Taiwei Agricultural Technology Co., Ltd. Address before: 261200, room 1504, block B, Sakura street, Fengcheng District, Kuiwei District, Shandong, Weifang Applicant before: Jin Shouhan |
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Application publication date: 20111123 |