CN1340389A - Technology for drawing plastics-lined composite metal pipe with sandwich transition structure material - Google Patents
Technology for drawing plastics-lined composite metal pipe with sandwich transition structure material Download PDFInfo
- Publication number
- CN1340389A CN1340389A CN 00113157 CN00113157A CN1340389A CN 1340389 A CN1340389 A CN 1340389A CN 00113157 CN00113157 CN 00113157 CN 00113157 A CN00113157 A CN 00113157A CN 1340389 A CN1340389 A CN 1340389A
- Authority
- CN
- China
- Prior art keywords
- metal
- tube
- plastic
- pipe
- metal pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 66
- 239000002184 metal Substances 0.000 title claims abstract description 66
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 title claims description 40
- 230000007704 transition Effects 0.000 title claims description 17
- 238000005516 engineering process Methods 0.000 title abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 89
- 229920003023 plastic Polymers 0.000 claims abstract description 89
- 238000000034 method Methods 0.000 claims description 32
- 239000010410 layer Substances 0.000 claims description 20
- 239000011229 interlayer Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000002905 metal composite material Substances 0.000 description 23
- 230000008569 process Effects 0.000 description 10
- 230000035882 stress Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Images
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
A drawing technology for manufacture of the composite metal pipe is disclosed. The said composite pipe is composed of external metal pipe layer, internal plastic pipe layer and sandwich layer which may be metal wire wound on the plastic pipe or the perforated long arc metal sheets densely arranged on the external surface of plastic pipe. The internal wall of metal pipe is smooth or has several longitudinal convex lines uniformly distributed, and the plastic pipe is inserted into the metal pipe by contracting the former and drawing.
Description
The present invention relates to the composite pipe production technology, particularly a kind of method that adopts sandwich material transition drawing plastics-lined composite metal pipe.
Traditional pipeline adopts metal pipe material more, metal tube mechanical strength height, and shock-resistant, barrier propterty is good, but because easy-to-rust, and the metallic character of itself, water quality is produced secondary pollution; Also adopt plastic pipe in the pipe technology, plastics are polluted water not, and inner wall smooth is scaling not, and flow resistance is little, but intensity is low, and protective is poor, and are particularly easily aging under the effect of light and air.These two kinds of materials are combined, bring into play the advantage of these two kinds of materials, avoid the weakness of these two kinds of materials, so a kind of novel tubing---interior plastic lining metal composite pipe occurred.Interior plastic lining metal composite pipe has the overall merit of metal and plastics, and outer layer metal tubing provides higher mechanical strength, and protective is good, and is shock-resistant, and inner plastic has good chemical stability, can guarantee the cleaning of the fluid of carrying.Thereby interior plastic lining metal composite pipe is a kind of pipeline material of function admirable.
Plastic lining metal composite pipe in prior art is produced has internal layer plastic-coated method and inner plastic extrusion etc.Internal layer plastic-coated method is to put in the metal tube that carries out plastic spraying or heating rotation in the pipeline with paint spray gun, make the plastic coating raw material fusing in it, flow and be coated on the inner wall of metal tube, but this coating layer is difficult for cementing metal, the coating thickness is inhomogeneous, easily delamination.Another kind method is a direct squeezable plastic tube in metal tube, this method can obtain the uniform plastic inner pipe of lining, but because plastic inner pipe only is the joint that a kind of planar interface touches mutually with the combination of metal outer pipe, do not produce the associative key of physics or chemistry in manufacture process, the outer layer metal of the interior plastic lining metal composite pipe that therefore this method is produced and the bond strength of inner plastic are little.
The size that important performance indications of composite are its material bond strengths, particularly the assembly when composite is that metal and macromolecular material are compound.Plastics belong to macromolecule organic material, and its linear expansion coefficient is compared the bigger difference of existence with the linear expansion coefficient of metal material.Compare with different metals, (as polyethylene is 3.0 * 10 to the linear expansion coefficient of plastics
-4/ ℃, polypropylene is 2.0 * 10
-4/ ℃) (as steel is 1 1.7 * 10 to can be expansion coefficients of metal wire
-6/ ℃, aluminium is 23.6 * 10
-6/ ℃) several times to tens times, under identical cold and hot temperature difference change condition, greatly many of the increase and decrease amount that the Volume Changes of plastics changes than metal volume.
Because interior plastic lining metal composite pipe is to be composited by two kinds of widely different materials of linear expansion coefficient, if there are not enough bond strengths between the two, will occur in actual use, meet that plastic lining bounces back in metal tube when cold, or meet emerge the again phenomenon of metal tube port of plastic lining when hot, cause metal tube to separate, thereby lost the combination property of multiple tube with plastic lining.
The interior plastic lining metal composite pipe that internal layer plastic-coated method and inner plastic extrusion are made, because inside and outside two kinds of line of material expansion coefficient differences of multiple tube are bigger, and limit by process, cause both bond strengths low, therefore the operating temperature range of using the interior plastic lining metal composite pipe of this method production only changes little zone a temperature difference, thereby has also limited the application of this tubing.
The drawing forming method is a kind of complex method of making bimetal tube, and its feature is that the stress that utilizes material with different distortion drag to produce after distortion provides bond strength and realizes the complex method of mechanical engagement.The drawing forming method is at production cost, and aspects such as equipment and productivity have advantages of high practicability, is mainly the plane mechanical engagement but the weak point of this method maximum is the joint at ectonexine interface.
From the material and the configuration aspects analysis of interior plastic lining metal composite pipe, the manufacturing of plastic lining metal composite pipe in this mechanical complex method of drawing forming can be used for.
Metal and plastics are two kinds of materials with different distortion drag, the plastic lining metal composite pipe skin is a metal, internal layer is plastics, because the yield stress of outer layer metal is higher than the yield stress of inner plastic, therefore can adopt the draw hubbing in the drawing forming technology.In draw drawing process, metal outer pipe and plastic inner pipe adopt interference fit, be that drawing is moulded external diameter of pipe after compound and moulded external diameter of pipe before less than drawing, plastic deformation and strain radially take place because of being compressed in inner layer plastic tube like this, provide engaging force between inner layer plastic tube and outer layer metal tube by the resilience stress of producing behind the plastic deformation.
But because its cladding material and inner layer material still are the plane mechanical engagement, interface intensity is lower, when the linear expansion coefficient of cladding material and inner layer material differs greatly, in the big working environment of difference variation, this bond strength that is provided by the plane mechanical engagement can not stop relatively moving of plastic inner pipe and metal outer pipe, causes separating of plastic tube and metal tube.Particularly plastics are a kind of macromolecule organic material, compare with other materials creep very easily takes place, this creep will cause its resilience stress that in draw drawing process, produces in time passing and weaken gradually until disappearance, the bond strength at the inner and outer pipes interface of resilience stress generation also just weakens until disappearance thereupon thus, cause plastic inner pipe and metal outer pipe more to become seriously, thereby lost the combination property of plastic lining metal composite pipe because of the phenomenon that relatively moves that temperature difference change takes place.Therefore, use this method and produce plastic lining metal composite pipe, the operating temperature range of this pipe is also only in a zone that difference variation is little.
In sum, at present produce the process of plastic lining metal composite pipe owing to not have to adopt and effectively improve and remain on the measure that engages intensity greatly between temperature difference working environment ectomesoderm metal and inner plastic, the plastic lining metal composite pipe that adopts these methods to produce can only be used for the cold water water supply system of normal temperature environment, can not be used in hot-water heating system, and the bigger northern area of China's annual range of temperature change, thereby limited its application.
The objective of the invention is to: a kind of method that adopts sandwich material transition drawing plastics-lined composite metal pipe is provided, it adopts draw drawing forming combination process, by the transmission transitional function of intermediate course material, with two kinds of metal outer pipe and synthetic integral body of inner plastic duct ligation with different linear expansion coefficients.This method makes the joint of ectonexine material interface by traditional plane mechanical engagement, be transformed into the male and female face that becomes transverse direction with the tubular axis line mechanical chimeric at two interfaces, because the existence and the restriction of chimeric shearing drag mutually makes the linear expansion coefficient of plastic lining metal composite pipe in this consistent with the linear expansion coefficient of outer layer metal tube.Use the operating temperature range of the interior plastic lining metal composite pipe of this method production limited by the operating temperature range of the plastics that serve as a contrast, select the plastics of suitable kind, plastic lining metal composite pipe is worked in than large-temperature range, and the phenomenon that gets loose of separating of inner plastic and outer layer metal tube can not occur.This kind multiple tube can be used for hot and cold water water supply system and the bigger working environment of temperature difference change.
Formation of the present invention: the skin of this multiple tube is metal tube (1), internal layer is plastic tube (2), the intermediate layer is an interlayer transition structure material, intermediate course transition structure material is placed on plastic tube (2) outer wall, penetrate in the metal tube (1) that internal diameter is slightly larger than the plastic tube external diameter, on drawbench, carry out draw drawing.Intermediate course transition structure material can be wire (3), is wound on the plastic tube in a spiral manner; Also can be the rectangular thin slice of curved metal (5) of the geometry hole that gathers, be distributed on the plastic tube outer wall along tube axis direction with several.Outer layer metal tube (1) inwall can be shiny surface, also can be that wall has equally distributed several vertical dentation convex line bars (4) within it.
Compared with the prior art, the present invention is owing to adopted the intermediate course material of Rational structure, and utilize the transmission transition anastomosis of sandwich material, it is chimeric that the ectonexine material interface plane mechanical engagement of traditional drawing forming manufactured multiple tube is transformed into concavo-convex interface machinery.The adhesion of the ectonexine material of the multiple tube of Zhi Zaoing not only has the stress that produces behind drawing deformation in this way, and the more important thing is has increased the shearing drag that is produced by concavo-convex embedding, therefore the adhesion between the multiple tube ectonexine is greatly improved.The composite pipe that the present invention can be combined into function admirable with the metal pipe material and the plastic pipe of two kinds of different coefficients of expansion, the metal tube that plastic lining metal composite pipe occurs because of cold and hot variation and the segregation phenomenon of plastic tube have been avoided, thereby plastic lining metal composite pipe can be worked in the environment that big difference variation is arranged, widened the plastic lining metal composite pipe application.
Accompanying drawing 2 is the wired transition composite pipe structure of the band double wedge figure among the present invention;
Accompanying drawing 3 is the dummy slider transition composite pipe structure figure among the present invention.
Embodiments of the invention: with intermediate course material metal silk (3), use canoe, or the rectangular thin slice of metal (5) uses and flatly to cover mode and place on plastic tube (2) outer wall, penetrate in the metal tube (1) that internal diameter is slightly larger than plastic tube (2) external diameter, according to the configuration difference of material, metal tube (1) inwall can have vertical dentation convex line bar (4), carries out draw drawing on drawbench, and plastic tube external diameter before making plastic tube external diameter after the drawing less than drawing, promptly make plastic lining metal composite pipe.
Wire (3) is wound in plastic tube (2) outer wall technology in a spiral manner: as shown in Figure 1, can use special-purpose coiling plant equipment, make plastic tube (2) make linear uniform motion, wire (3) is done to mould the circular motion that pipe is the center of circle, the straight-line speed of control plastic tube (2), can with wire (3) helically coiling of a determining deviation on plastic tube (2) outer wall, penetrate in the metal tube (1) and carry out draw drawing.
Band geometry hole sheet metal (5) is made: as shown in Figure 3, sheet metal strip is processed by roller shear butt formula or continuous impact style, promptly can be made into required curved metal thin slice (5) band, be distributed on plastic tube (2) outer wall along plastic tube (2) axis direction with several, penetrate in the metal tube (1) and carry out draw drawing.
Inwall has the making of vertical dentation convex line strip metal pipe: as shown in Figure 2, the attributes different according to metal adopt the diverse ways manufacturing.Can adopt the process of extruding, on extrusion die formpiston core print work zone, slot, can extrude inwall on extruder has the metal tube (1) of vertical dentation convex line bar (4), as be used for the making of copper pipe, aluminum pipe, also can adopt tubing belt carcass head drawing forming process, machined grooves on the core print calibrating strap subtracts wall by tube reducing and stretches, promptly can be made into inwall has the metal tube (1) of vertical dentation raised line (4), as is used for the processing and fabricating of steel pipe and stainless steel tube.
The Technology for Heating Processing of plastic tube before compound: plastic pipe is put into water or the air heat medium leaves standstill a period of time, generally than low about 20 ℃ of plastics softening point, the processing time is 2-3 hour to heat treatment temperature.As polypropylene pipe, heat treatment temperature is 125 ± 5 ℃, is incubated 2-3 hour, naturally cooling; Polyvinyl piping materials, heat treatment temperature are 80 ± 5 ℃, are incubated 2 hours, naturally cooling.
Draw drawing moulding process is the ripe process technology of producing metal tube, bar, and the plastic lining metal composite pipe of producing this invention is not had specific (special) requirements.
Claims (3)
1, a kind of method that adopts sandwich material transition drawing plastics-lined composite metal pipe, it is characterized in that: the skin of this multiple tube is metal tube (1), internal layer is plastic tube (2), the intermediate layer is an interlayer transition structure material, intermediate course transition structure material is placed on plastic tube (2) outer wall, penetrate in the metal tube (1) that internal diameter is slightly larger than the plastic tube external diameter, on drawbench, carry out draw drawing.
2, a kind of method that adopts sandwich material transition drawing plastics-lined composite metal pipe according to claim 1, it is characterized in that: intermediate course transition structure material can be wire (3), is wound on the plastic tube in a spiral manner; Also can be the rectangular thin slice of curved metal (5) of the geometry hole that gathers, be distributed on the plastic tube outer wall along tube axis direction with several.
3, a kind of method that adopts sandwich material transition drawing plastics-lined composite metal pipe according to claim 1, it is characterized in that: outer layer metal tube (1) inwall can be shiny surface, also can be that wall has equally distributed several vertical dentation convex line bars (4) within it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00113157 CN1340389A (en) | 2000-08-31 | 2000-08-31 | Technology for drawing plastics-lined composite metal pipe with sandwich transition structure material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00113157 CN1340389A (en) | 2000-08-31 | 2000-08-31 | Technology for drawing plastics-lined composite metal pipe with sandwich transition structure material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1340389A true CN1340389A (en) | 2002-03-20 |
Family
ID=4582969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00113157 Pending CN1340389A (en) | 2000-08-31 | 2000-08-31 | Technology for drawing plastics-lined composite metal pipe with sandwich transition structure material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1340389A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100411761C (en) * | 2005-10-20 | 2008-08-20 | 江苏兴荣高新科技股份有限公司 | Manufacturing method of copper-aluminum bimetallic wire |
| CN100447475C (en) * | 2004-04-07 | 2008-12-31 | 于建新 | Flexible active sleeve joint of polythylene polypropylene tubing and tube element with skeleton and their prodn. process |
| CN102147039A (en) * | 2010-07-26 | 2011-08-10 | 中国核电工程有限公司 | Fastening joint and manufacturing method thereof |
| CN103600000A (en) * | 2013-12-05 | 2014-02-26 | 北京隆盛泰科石油管科技有限公司 | Method for producing lining bimetallic composite pipe by means of drawing and diameter reduction of lining pipe |
| CN105299335A (en) * | 2014-07-31 | 2016-02-03 | 上海天阳钢管有限公司 | Manufacturing method of carbon steel stainless steel double-metal polymerization pipe |
| CN110736699A (en) * | 2019-09-11 | 2020-01-31 | 临海伟星新型建材有限公司 | Device for testing binding force between plastic part and metal insert and testing method thereof |
-
2000
- 2000-08-31 CN CN 00113157 patent/CN1340389A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447475C (en) * | 2004-04-07 | 2008-12-31 | 于建新 | Flexible active sleeve joint of polythylene polypropylene tubing and tube element with skeleton and their prodn. process |
| CN100411761C (en) * | 2005-10-20 | 2008-08-20 | 江苏兴荣高新科技股份有限公司 | Manufacturing method of copper-aluminum bimetallic wire |
| CN102147039A (en) * | 2010-07-26 | 2011-08-10 | 中国核电工程有限公司 | Fastening joint and manufacturing method thereof |
| CN103600000A (en) * | 2013-12-05 | 2014-02-26 | 北京隆盛泰科石油管科技有限公司 | Method for producing lining bimetallic composite pipe by means of drawing and diameter reduction of lining pipe |
| CN103600000B (en) * | 2013-12-05 | 2016-08-17 | 北京隆盛泰科石油管科技有限公司 | Use and internal lining pipe stretching undergauge is realized the method that inner liner bimetal composite produces |
| CN105299335A (en) * | 2014-07-31 | 2016-02-03 | 上海天阳钢管有限公司 | Manufacturing method of carbon steel stainless steel double-metal polymerization pipe |
| CN110736699A (en) * | 2019-09-11 | 2020-01-31 | 临海伟星新型建材有限公司 | Device for testing binding force between plastic part and metal insert and testing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101737565A (en) | Method for manufacturing copper-aluminum composite tube | |
| CN107030134B (en) | The continuous extrusion production method of metal plate and belt blank | |
| CN108839323B (en) | Plastic pipe extrusion molding device | |
| CN1340389A (en) | Technology for drawing plastics-lined composite metal pipe with sandwich transition structure material | |
| CN114633454A (en) | Extrusion machine head for PEEK pipe production and PEEK pipe production process | |
| CN100532072C (en) | Steel mesh belt reinforced plastic-steel composite pipe manufacturing equipment and the pipe processing method | |
| CN103075582B (en) | Large-caliber steel-plate net riveting plastic composite pressure pipe and production method | |
| CN201271664Y (en) | Aluminum circular tube sectorial diffluent hole spiral bridge hot extrusion die | |
| CN104625594B (en) | The method of manufacturing technology of rotor of large turbo-type generator profiled-cross-section connector copper pipe | |
| CN209616296U (en) | A new plastic pipe extrusion molding device | |
| KR102050859B1 (en) | Method and apparatus for jet packing molding polymer pipeline | |
| CN1342549A (en) | Technology for making seamless composite Al-plastic pipe | |
| CN104148429A (en) | Seamless airtight aluminum pipe optical unit and manufacturing method thereof | |
| CN210484952U (en) | Externally-coated steel-plastic composite wear-resistant elbow | |
| CN1240499C (en) | Method and apparatus for producing metal clad material | |
| CN115946325A (en) | Bamboo-shaped plastic extrusion product processing device and processing method | |
| CN109454121A (en) | The hot extrusion shaping mold of metal composite pipe and the method for preparing metal composite pipe | |
| CN110993191B (en) | A wire and cable extrusion production device | |
| CN1208143A (en) | Composite aluminum-plastic pipe with aluminum layer to be butt welded and its production | |
| CN210362355U (en) | Insulating tube and extrusion die thereof | |
| CN106042258A (en) | Production equipment for metal-coated thermoplastic plastic profile | |
| CN2874177Y (en) | Secondary winding double structure wall pipe | |
| CN205058544U (en) | Outer extruder mould | |
| CN222727348U (en) | A pipe production mold and pipe production equipment for producing thick-walled pipes with large diameter and uniform wall thickness | |
| CN222972709U (en) | A cable extrusion die with improved cable adhesion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |