CN1073906A - The manufacture method of steel-plastics composite pipe - Google Patents
The manufacture method of steel-plastics composite pipe Download PDFInfo
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- CN1073906A CN1073906A CN 92100118 CN92100118A CN1073906A CN 1073906 A CN1073906 A CN 1073906A CN 92100118 CN92100118 CN 92100118 CN 92100118 A CN92100118 A CN 92100118A CN 1073906 A CN1073906 A CN 1073906A
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Abstract
A kind of manufacture method of anti-corrosion pipeline steel-plastics composite pipe rolls out pit and burr one by one with fluff mechanism with the steel pipe inwall earlier, packs into plastic liner at the steel duct sky, takes three kinds of methods to make pit and the burr and the tight riveted of plastic liner of steel pipe inwall again; The one, steel pipe is by force by little 2～5 millimeters punching block of relative aperture outer diameter of steel pipes; The 2nd, pass through the plastic liner internal diameter with swelling pressure punching block in one group of multistage moulding; The 3rd, with 6～10 kilograms/(centimetre) 2 Boiler Steam imports the plastic liner inner chamber of sealing, heat pressurization 10～20 minutes, cooling forming then.Advantage of the present invention: steel-plastics composite pipe still can be combined closely when variations in temperature, stable performance.
Description
The present invention relates to the manufacture method of anti-corrosion pipeline steel-plastics composite pipe.
Steel-plastics composite pipe is to be matrix with the steel pipe, the plastic liner that the liner chemical stability is good.Steel-plastics composite pipe had both had the mechanical performance of steel, had the Corrosion Protection of plastics again, was the ideal conduit of carrying corrosivity gas, liquid.Because it is inconsistent that steel body and plastics expand with heat and contract with cold, when environment temperature or serviceability temperature change, can cause between steel pipe and the plastic liner to produce displacement.When temperature rose, the elongation of plastic liner was greater than the elongation of steel pipe, and plastic liner will stretch out steel-plastics composite pipe flange end plane, influence its installation and serviceability; When temperature descended, the contraction of plastic liner can cause plastic liner at end face of flange connection place opening, phenomenon of rupture greater than the contraction of steel pipe, causes the leakage of pipeline chemical medium.Mould two kinds of materials and expand with heat and contract with cold inconsistent and influence this technical barrier of serviceability in order to solve steel, two utility model patents of our factory-Nantong city anti-corrosion pipeline factory-once proposed: " steel-plastics composite pipe that has telescopic joint " and " being added with the steel-plastics composite pipe of centring ring ", the patent No. is respectively 882076965,892083700, having alleviated steel to a certain extent moulds two kinds of materials and expands with heat and contract with cold inconsistent and bring the problem of unstable properties, but still exist between steel pipe and the plastic liner and produce microdisplacement, in steel-plastics composite pipe, successively pass through several chemical mediums especially, unexpected high temperature during several chemical medium chemical reaction, the cataclysm of temperature will aggravate steel and mould two kinds of displacements between the material pipeline.
The objective of the invention is to provide a kind of manufacture method of new steel-plastics composite pipe in order to overcome above-mentioned weak point, steel pipe and plastic liner in the steel-plastics composite pipe are not subjected to displacement in each regional extent, thereby guaranteed the stability of steel-plastics composite pipe performance, and improved the accommodation of steel-plastics composite pipe to variations in temperature, widened the application of steel-plastics composite pipe.
Description of the present invention is as follows: with fluff mechanism the steel pipe inwall is rolled out pit and burr one by one earlier, fluff mechanism is made up of pointed tooth hobboing cutter, cone arms, radiai adjustment bar, frame, hauling machine etc.The pointed tooth hobboing cutter is installed on the cone arms in pairs and symmetrically, the pointed tooth hobboing cutter can be around the axle center rotation, and hobboing cutter has the pointed tooth shape, and pointed tooth has 1 row, 2 rows, 3 rows, 4 rows, 5 rows, cone arms also is to be installed on the frame in pairs and symmetrically, and the hinge pin that is connected to of cone arms and frame is connected.The radiai adjustment bar is equipped with in cone arms central authorities, and the radiai adjustment bar has a bullet, and cone arms is opened, and the excircle of a pair of or a few zygodont hobboing cutters enlarges; Revolve cone arms is shunk, the excircle of a pair of or a few zygodont hobboing cutters dwindles.Regulate the radiai adjustment bar, make the external diameter of a pair of or a few zygodont hobboing cutters bigger 100～160 than pipe diameter, act on frame with hauling machine by cable wire, the pulling fluff mechanism makes the pointed tooth hobboing cutter roll out pit and burr one by one on the steel pipe inwall by pipe diameter.The steel pipe inwall is through after handling, and sky packs into plastic liner.For the pit that makes the steel pipe inwall and burr and plastic liner riveted well, three kinds of methods are arranged.A kind of method, it is the steel pipe that is with plastic liner with the High power Traction machine travel, make steel pipe by force by little 1～5 millimeter punching block of relative aperture outer diameter of steel pipes, make outer diameter of steel pipes dwindle 1～5 millimeter, make the pit of steel pipe inwall and burr and plastic liner riveted well like this.This method is fit to the steel-plastics composite pipe of DN10～200 millimeter.Second method, the steel pipe inwall is carried out after the processing of pit and gross profit, sky was enclosed within the steel pipe after the outer wall of plastic liner was coated with last layer epoxy resin, steel pipe is heated 200～250 ℃ together with plastic liner, have multistage with swelling pressure punching block in one group of multistage moulding by swelling pressure punching block in plastic liner internal diameter, the multistage moulding then, first order external diameter is consistent with the plastic liner internal diameter, the second level, the third level are progressively strengthened, the size of afterbody external diameter is, the internal diameter of plastic liner adds the gap between steel pipe and the plastic liner, also will add 0.5～1.5 millimeter.Like this, the swelling pressure punching block under interior swelling pressure punching block extruding, makes pit and burr and the tight riveted of plastic liner on the steel pipe inwall axially by behind the plastic liner internal diameter in one group of multistage moulding.The third method is carried out the steel pipe inwall after the processing of pit and burr, the outer wall of plastic liner is coated epoxy resin after sky be enclosed within the steel pipe, with dished sealing washer the plastic liner two ends are sealed, with 6～10 kilograms/(centimetre)
2Boiler Steam feed the plastic bushing inner chamber of sealing, the pressurization that makes it to heat kept 10～20 minutes, made the outside bulging of plastic liner, with the pit and the tight riveted of burr of steel pipe inwall.Unload at normal temperatures cooling then, moulding, this method is applicable to the steel-plastics composite pipe of bore DN200～500 millimeter.
Be described further below in conjunction with the manufacture method of drawings and Examples steel-plastics composite pipe of the present invention.
Fig. 1 makes the steel pipe inwall form the fluff mechanism of pit and burr.1-radiai adjustment bar among the figure, 2-cone arms, 3-pointed tooth hobboing cutter, 4-cutter shaft, 5-frame, 6-hauling rope.
Fig. 2 is the schematic diagram that steel pipe dwindles outer diameter of steel pipes together with plastic liner by punching block, 7-steel pipe among the figure, 8-plastic bushing, 9-punching block.
Fig. 3 is the schematic diagram that the swelling pressure punching block passes through the plastic liner internal diameter in the multistage moulding.7-steel pipe among the figure, the 8-plastic liner, punching block expands in the multistage moulding of 10-.
Embodiment 1, and the steel pipe bore is 150 millimeters, and the steel pipe material is a common straightcarbon steel, mild steel.Fluff mechanism is placed steel tube end part.At first mechanism is made up of pointed tooth hobboing cutter (3), cone arms (2), radiai adjustment bar (1), frame (5) etc.Pointed tooth hobboing cutter (3) is 2 pairs, is installed in pairs and symmetrically on the cone arms (2), and pointed tooth hobboing cutter (3) can be around cutter shaft (4) rotation.The pointed tooth hobboing cutter has the pointed tooth shape, and pointed tooth has 3 rows.Cone arms (2) also is to be installed in pairs and symmetrically on the frame (5), and the connected mode of cone arms (2) and frame (5) is that hinge pin is connected.In the central authorities of cone arms (2) radially valve pole (1) is housed, the radiai adjustment bar has a bullet, and cone arms is opened.The excircle of pointed tooth hobboing cutter enlarges, otherwise, then dwindle.Adjust radiai adjustment bar (1), make the external diameter of two zygodont hobboing cutters bigger 100～160 than pipe diameter, after speed change, act on frame (5) with 15 kilowatts of motor, pointed tooth hobboing cutter (3) is axially rolled on the steel pipe inwall, roll out pit and burr one by one by hauling rope (6).After the steel pipe inwall was handled through fluffing, sky put plastic liner in steel pipe, and the gap of steel pipe and plastic liner is 0.5～2 millimeter.For make pit on the steel pipe inwall and burr can and plastic liner carry out riveted closely, the steel pipe that is set with plastic liner is carried out tube reducing to be handled, promptly the steel pipe that is set with plastic liner, use the High power Traction machine travel, make it by force by little 1.5～4.5 millimeters punching block of relative aperture outer diameter of steel pipes, make the reduced diameter of steel pipe, like this, make closely riveted of pit on the steel pipe inwall and burr and plastic liner.
Advantage of the present invention: steel pipe and plastic liner are by the pit on the steel pipe inner wall and burr riveted well, so that mutual displacement does not all take place owing to good combination in steel-plastics composite pipe in each incorporation range, thereby, when variations in temperature, steel is moulded two kinds of materials inconsistent stability that still can guarantee the steel-plastics composite pipe performance of expanding with heat and contract with cold. In other words, overcome when variations in temperature, steel is moulded two kinds of materials and is expanded with heat and contract with cold inconsistent and technical barrier that cause plastic liner to be concentrated at end face of flange stress.
Claims (5)
1, a kind of manufacture method of anti-corrosion pipeline steel-plastics composite pipe, it is characterized in that with fluff mechanism steel pipe inwall liquid being gone out pit and burr one by one earlier, pack into plastic liner at the steel duct sky, make pit and the burr and the tight riveted of plastic liner of steel pipe inwall again with three kinds of methods.
A, be with the steel pipe of plastic liner, make steel pipe, make outer diameter of steel pipes dwindle 1～5 millimeter by force by little 2～5 millimeters punching block of relative aperture outer diameter of steel pipes with the High power Traction machine travel.
B, steel pipe is heated 200～250 ℃ together with plastic liner, then with swelling pressure punching block in one group of multistage moulding by the plastic liner internal diameter, the afterbody external diameter is that the plastic liner internal diameter adds crack between steel pipe and the plastic liner, adds 0.5～1.5 millimeter.
C, the plastic liner two ends are sealed with dished sealing washer, with 6～10 kilograms/(centimetre)
2Boiler Steam import the plastic liner inner chamber of sealing, the pressurization that makes it to heat kept 10～20 minutes, unload then at normal temperatures cool off, moulding.
2, the manufacture method of steel-plastics composite pipe according to claim 1, it is characterized in that fluff mechanism is by pointed tooth hobboing cutter (3), cone arms (2), radiai adjustment bar (1), frame (5) is formed, pointed tooth hobboing cutter (3) is installed on the cone arms (2) in pairs and symmetrically, pointed tooth hobboing cutter (3) can be around cutter shaft (4) rotation, cone arms (2) also is to be installed in pairs and symmetrically on the frame (5), the connected mode of cone arms (2) and frame (5) is that hinge pin is connected, in the central authorities of cone arms (2) radiai adjustment bar (1) is housed, the radiai adjustment bar has bullet.
3, the manufacture method of steel-plastics composite pipe according to claim 1 and 2 is characterized in that the pointed tooth hobboing cutter has the pointed tooth shape, and pointed tooth has 1 row, or 2 rows, or 3 rows, or 4 rows, or 5 rows.
4,, it is characterized in that the external diameter of a pair of or a few zygodont hobboing cutters is bigger 100～160 than pipe diameter according to the manufacture method of claim 1 or 3 described steel-plastics composite pipes.
5, the manufacture method of steel-plastics composite pipe according to claim 1 is characterized in that sky packs into steel duct again after the plastic liner outer surface is coated epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100118 CN1073906A (en) | 1992-01-02 | 1992-01-02 | The manufacture method of steel-plastics composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100118 CN1073906A (en) | 1992-01-02 | 1992-01-02 | The manufacture method of steel-plastics composite pipe |
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| Publication Number | Publication Date |
|---|---|
| CN1073906A true CN1073906A (en) | 1993-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92100118 Pending CN1073906A (en) | 1992-01-02 | 1992-01-02 | The manufacture method of steel-plastics composite pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100361805C (en) * | 2005-08-04 | 2008-01-16 | 浙江金洲管道科技股份有限公司 | Intermediate frequency heating pipe plastic liner device |
| CN100406235C (en) * | 2003-07-22 | 2008-07-30 | 郑耀光 | Equipment for manufacturing steel plastic pipe |
| CN101952107A (en) * | 2008-02-06 | 2011-01-19 | 雷金纳德·C·伯恩 | Apparatus and method for internally lining an elongate member |
| CN106113875A (en) * | 2016-06-30 | 2016-11-16 | 苏州市永通不锈钢有限公司 | Film device on a kind of steel pipe inner wall |
-
1992
- 1992-01-02 CN CN 92100118 patent/CN1073906A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406235C (en) * | 2003-07-22 | 2008-07-30 | 郑耀光 | Equipment for manufacturing steel plastic pipe |
| CN100361805C (en) * | 2005-08-04 | 2008-01-16 | 浙江金洲管道科技股份有限公司 | Intermediate frequency heating pipe plastic liner device |
| CN101952107A (en) * | 2008-02-06 | 2011-01-19 | 雷金纳德·C·伯恩 | Apparatus and method for internally lining an elongate member |
| CN101952107B (en) * | 2008-02-06 | 2013-07-17 | 雷金纳德·C·伯恩 | Apparatus and method for internally lining an elongate member |
| CN106113875A (en) * | 2016-06-30 | 2016-11-16 | 苏州市永通不锈钢有限公司 | Film device on a kind of steel pipe inner wall |
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| C06 | Publication | ||
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |