CN116336299B - Corrosion-resistant seamless line pipe and manufacturing method thereof - Google Patents
Corrosion-resistant seamless line pipe and manufacturing method thereof Download PDFInfo
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- CN116336299B CN116336299B CN202310612459.6A CN202310612459A CN116336299B CN 116336299 B CN116336299 B CN 116336299B CN 202310612459 A CN202310612459 A CN 202310612459A CN 116336299 B CN116336299 B CN 116336299B
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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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/16—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings the coating being in the form of a bandage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/146—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies to metallic pipes or tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
- B24C1/086—Descaling; Removing coating films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/26—Lining or sheathing of internal surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
- B29C65/522—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by spraying, e.g. by flame spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
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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
- F16L21/00—Joints with sleeve or socket
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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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
- F16L58/1072—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being a sprayed layer
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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
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2503/00—Polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2504/00—Epoxy polymers
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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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses an anti-corrosion seamless pipeline tube and a manufacturing method thereof, belonging to the technical field of seamless steel tube production. The welded corrosion-resistant bulge is arranged at the outer side of the seamless pipeline pipe, the epoxy powder layer, the polyurethane glue layer and the rubber corrosion-resistant layer are arranged at the position of the seamless pipeline pipe, the rubber corrosion-resistant layer and the paraffin are used for preliminary corrosion resistance, the polyurethane glue layer and the epoxy powder layer are used for further corrosion resistance when the rubber corrosion-resistant layer is damaged, corrosive liquid and other corrosive substances can permeate through the gap position of the rubber corrosion-resistant layer to reach the position of the seamless pipeline pipe after the polyurethane glue layer and the epoxy powder are damaged or corroded after a certain service life, and the corrosion-resistant bulge is arranged at the gap position of the rubber corrosion-resistant layer in a welded mode, so that the corrosion-resistant bulge is preferentially corroded, the corrosion resistance of the seamless pipeline pipe is greatly improved, and the service life of the seamless pipeline pipe is prolonged.
Description
Technical Field
The invention belongs to the technical field of seamless steel tube production, and particularly relates to an anti-corrosion seamless steel tube and a manufacturing method thereof.
Background
A seamless line pipe is a pipe for transporting liquids, gases and other media, made of seamless steel tubing. Compared with welded pipe, it has the features of smooth inner wall, high pressure resistance and high corrosion resistance, and may be used widely in petroleum, natural gas, chemical industry, electric power and other fields. Common seamless line pipe specifications include parameters such as outer diameter, wall thickness, and length. According to different application scenes, different surface treatment modes such as paint spraying, zinc plating and the like can be adopted, so that the corrosion resistance of the paint is improved. Production of seamless line pipes requires specialized production equipment and techniques. When using seamless line pipes, it is necessary to comply with relevant regulations and precautions, such as pipe connection, pipe protection, etc., to ensure safe and reliable operation thereof. Meanwhile, the pipeline needs to be checked regularly to determine whether the pipeline has the problems of cracks, corrosion and the like, and repair or replacement is performed in time so as to ensure the long service life and reliability of the pipeline.
In the prior art, the outer wall anti-corrosion treatment of the seamless pipeline tube is mostly carried out in a spray paint and coating mode when the production is carried out, the paint layer and the coating on the surface of the seamless pipeline tube can be worn by long-time pre-burying and ground laying, the bottom layer of the seamless pipeline tube leaks out, the pipeline is not in place, the service life of the pipeline is short, and the maintenance period is short and the cost is high.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a corrosion-resistant seamless line pipe, and a manufacturing method and manufacturing equipment thereof.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an anticorrosive seamless pipeline pipe, includes seamless pipeline pipe, seamless pipeline pipe outer wall position is provided with the anticorrosive arch of spiral setting, seamless pipeline pipe outer wall position is provided with the epoxy powder layer to be provided with the polyurethane glue layer in epoxy powder outside position, polyurethane glue layer outside position is provided with the rubber corrosion resistant layer.
Through above-mentioned technical scheme, anticorrosive protruding effect that plays main anticorrosive, polyurethane glue layer have the effect of adhesion, have anticorrosive effect simultaneously, and epoxy powder layer carries out further anticorrosive, anticorrosive protruding makes when rubber corrosion resistant layer and epoxy powder layer lose anticorrosive effect preferential corrosion anticorrosive protruding, slows down the corrosion rate of pipeline pipe, and the anticorrosive protruding convenience of spiral setting promotes seamless pipeline pipe and removes under the hot briquetting effect of hot pressing wheel, realizes twining hot pressing rubber corrosion resistant layer to the seamless pipeline pipe at rear.
The positioning groove is formed in the outer wall of one end of the seamless pipeline tube, and the assembling groove is formed in the inner wall of one end, far away from the positioning groove, of the seamless pipeline tube.
Through above-mentioned technical scheme, make things convenient for two adjacent seamless line pipes to assemble through constant head tank and equipment groove, conveniently fix a position.
A manufacturing method of a corrosion-resistant seamless line pipe specifically comprises the following preparation steps:
after casting the steel seamless line pipe, welding an anti-corrosion protrusion through a spiral pipe welding machine, polishing the surface of the anti-corrosion protrusion to be level through a polishing machine, polishing the surface of the anti-corrosion protrusion to be level, and enabling the rubber anti-corrosion layer to be fully contacted with the anti-corrosion protrusion and fixed through hot pressing;
secondly, performing shot blasting on the surface of the seamless pipeline tube, blowing out impurities on the surface of the seamless pipeline tube through a high-pressure fan, heating the seamless pipeline tube through an intermediate-frequency heater, and cleaning rust and impurities on the surface of the seamless pipeline tube through shot blasting when the seamless pipeline tube is naturally cooled to room temperature, so that the treatment flaws of the impurities during the anti-corrosion treatment are avoided;
coating an epoxy powder layer on the surface of the seamless pipeline tube through an electrostatic spraying machine, spraying a polyurethane glue layer on the outer side of the epoxy powder layer after coating, and hot-pressing a rubber corrosion resistant layer on the outer side of the polyurethane glue layer through an anti-corrosion machine after the polyurethane glue layer is dried;
fourthly, turning a positioning groove on the outer wall of one end of the seamless pipeline tube through a lathe, turning an assembly groove on the inner wall of one end of the seamless pipeline tube away from the positioning groove, and chamfering the positions of the positioning groove and the assembly groove, wherein the positioning groove and the assembly groove can be matched with each other conveniently, and positioning and assembly are convenient to carry out;
and fifthly, spraying paraffin on the surface of the rubber corrosion resistant layer, spraying and cleaning after the paraffin is condensed, sealing the two end positions of the seamless pipeline tube, protecting the surface of the rubber corrosion resistant layer by spraying the paraffin, sealing the two end positions, and protecting the inner side of the seamless pipeline tube.
The rubber corrosion-resistant layer is "protruding" font setting, and the width of rubber corrosion-resistant layer both sides is anticorrosive protruding half of width, the width of the protruding part in rubber corrosion-resistant layer middle part is anticorrosive bellied pitch, and the protruding degree of depth of rubber corrosion-resistant layer is anticorrosive bellied height, set up like this and make the protruding part of rubber corrosion-resistant layer fully inlay hot pressing in the gap between anticorrosive archs, the tiling of rubber corrosion-resistant layer both sides position is at anticorrosive bellied surface position, and anticorrosive bellied surface is covered by rubber corrosion-resistant layer both sides, and hot pressing bond together, the anticorrosive material first oozes anticorrosive bellied position in the anticorrosive layer in the rubber of rubber is the weakest position of whole rubber, then preferential corrosion is anticorrosive protruding when the hot pressing interface position appears damaging, can not cause seamless pipeline pipe by direct corrosion.
Further, the anti-corrosion machine comprises an anti-corrosion platform and a skin pressing frame, wherein a pipeline rotating device is arranged at the surface position of the anti-corrosion platform, and hot pressing film covering structures are arranged at the two side positions of the skin pressing frame.
Further, the pipeline rotating device comprises four first bearing seats which are in rectangular distribution, an active rotating shaft is arranged between the two first bearing seats on the same side of the four first bearing seats, the outer wall of the active rotating shaft is fixedly connected with a supporting jacket, the active rotating shaft is perpendicular to the side wall of the leather pressing frame, and the four corner positions of the lower surface of the anti-corrosion platform are fixedly connected with bases.
Through above-mentioned technical scheme, can realize supporting initiative pivot through first bearing frame, make it rotate, support the overcoat and can protect initiative pivot, and the surface is convex setting, reduces frictional force, conveniently makes seamless pipeline pipe remove and overturn under the effect of hot pinch roller and hot briquetting.
Further, hot pressing tectorial membrane structure includes hot pressing wheel, hot pressing wheel outer wall position fixedly connected with spiral hot briquetting that sets up, the spout that runs through of vertical setting has been seted up to pressure leather frame surface middle part position, pressure leather frame is located and runs through the spout and run through the groove that has been seted up in the position under running through, pressure leather frame is close to hot briquetting one side upper position and is connected with the rubber tape rolling wheel through the axle rotation, pressure leather frame is close to hot briquetting one side and is located the rubber tape rolling wheel lower position rotation and is connected with the leading wheel.
Through above-mentioned technical scheme, can realize pressing the abundant outside at seamless line pipe with rubber corrosion resistant layer through hot briquetting and hot pinch roller, and the hot briquetting of spiral setting realizes realizing with anticorrosive protruding cooperation realization seamless line pipe removal.
Further, the leather pressing frame is provided with a protection groove at one side of the guide wheel, the inner wall of the protection groove is rotationally connected with a damping rotating frame, and a flame gun is fixedly clamped at the clamping jaw of the damping rotating frame.
Through above-mentioned technical scheme, accomodate damping rotating frame through the guard groove, ensure that the flame gun aims at seamless pipeline tube position, damping rotating frame realizes damping rotation, conveniently adjusts the flame angle of flame gun, and the flame gun blowout high temperature flame heats the rubber corrosion resistant layer, abundant fixed when making things convenient for the hot pressing.
Further, the pressing frame is provided with sliding platform away from hot briquetting one side position, sliding platform upper surface middle part position fixedly connected with driving motor, driving motor drive end is through axle and hot briquetting lateral wall central point put fixed connection, four corner positions of sliding platform upper surface run through sliding connection have the threaded rod, are located two of same one side threaded rod both ends position fixedly connected with fixed bolster, fixed bolster and pressing frame lateral wall fixed connection, four the threaded rod outside is located sliding platform both sides position and runs through threaded connection and have screw cap of screwing.
Through above-mentioned technical scheme, can realize bearing the weight of the support to driving motor through slide platform, provide power for the hot-pressing wheel through driving motor, realize adjusting slide platform's height through the threaded rod to screw the nut through upper and lower both sides and press from both sides tightly fixedly, and fixed bolster realizes carrying out fixed support to the threaded rod.
Further, a maintenance cover plate is arranged at the middle position of one side of the anti-corrosion platform, which is close to the skin pressing frame, a speed reducing motor is fixedly connected to the position of one side of the bottom wall of the anti-corrosion platform, which is close to the maintenance cover plate, a second bearing seat is fixedly connected to the position of one side of the bottom wall of the anti-corrosion platform, which is positioned at the driving end of the speed reducing motor, and a power shaft is arranged at the position of the second bearing seat and is fixedly connected with the driving end of the speed reducing motor.
Through the technical scheme, the maintenance cover plate can maintain and overhaul electrical equipment in the anti-corrosion platform after being opened, and the speed reducing motor provides power for rotation of the driving rotating shaft.
Further, a belt wheel is fixedly connected to one end position of any driving rotating shaft, which is close to the leather pressing frame, and the outer wall position of the power shaft in a penetrating manner, a power belt is arranged between the two belt wheels, and the power belt and the belt wheel conduct power of the speed reduction motor to the corresponding driving rotating shaft position.
The beneficial effects of the invention are as follows: (1) The welded corrosion-resistant bulge is arranged at the outer side of the seamless pipeline pipe, and the epoxy powder layer, the polyurethane glue layer and the rubber corrosion-resistant layer are arranged at the position of the seamless pipeline pipe, so that the rubber corrosion-resistant layer and paraffin are subjected to preliminary corrosion resistance, the polyurethane glue layer and the epoxy powder layer are subjected to further corrosion resistance when damaged, corrosive liquid and other corrosive substances can permeate the gap position of the rubber corrosion-resistant layer to reach the position of the seamless pipeline pipe after the polyurethane glue layer and the epoxy powder are damaged or corroded after a certain service life, and the seamless pipeline pipe is provided with the welded corrosion-resistant bulge at the gap position of the rubber corrosion-resistant layer, so that the corrosion-resistant bulge is preferentially corroded, the corrosion-resistant capability of the seamless pipeline pipe is greatly improved, and the service life of the seamless pipeline pipe is prolonged; (2) According to the invention, the anticorrosion machine is arranged, the rubber corrosion resistant layer is tightly wound on the surface of the seamless pipeline pipe, the interface between the rubber corrosion resistant layers is positioned at the anticorrosion protruding position of the seamless pipeline pipe during hot pressing, the weak point of the rubber corrosion resistant layer is positioned at the hot pressing interface between the rubber corrosion resistant layers, when the weak point of the rubber corrosion resistant layer is pressed at the anticorrosion protruding position during hot pressing, corrosive substances are exactly positioned at the anticorrosion protruding position during damage of the rubber corrosion resistant layer, the repeated protruding position is corroded, the corrosion speed of the seamless pipeline pipe is slowed down, the rubber corrosion resistant layer and the polyurethane glue layer are fully adhered and fixed in a hot pressing mode, meanwhile, the hot pressing block enables the rubber corrosion resistant layer to fully contact the seamless pipeline pipe and the anticorrosion protruding during hot pressing, and the hot pressing is fully fixed; (3) According to the invention, the anti-corrosion protrusions are arranged on the outer side of the seamless pipeline tube, so that the effect of preferentially corroding the welding piece and slowing down the seamless pipeline tube is achieved, and the hot-press fixing area of the rubber anti-corrosion layer can be increased, so that the hot-press fixing is sufficient.
Drawings
Fig. 1 is a rear view of a corrosion inhibitor of a corrosion resistant seamless line pipe of the present invention.
Fig. 2 is a corrosion resistant axial side view of a seamless line pipe of the present invention.
Fig. 3 is a front view of an anti-corrosion machine for an anti-corrosion seamless line pipe according to the present invention.
Fig. 4 is a partial front view of a corrosion resistant seamless line tube of the present invention.
Fig. 5 is a partial cross-sectional view of a corrosion resistant seamless line tube of the present invention.
Fig. 6 is an enlarged view at a in fig. 5.
Fig. 7 is an enlarged view at B in fig. 5.
Fig. 8 is a front view of a corrosion resistant seamless line tube of the present invention.
Fig. 9 is a partial cross-sectional view at C in fig. 8.
Fig. 10 is a cross-sectional view of a rubber corrosion resistant layer of a corrosion resistant seamless line tube of the present invention.
Fig. 11 is an enlarged view of D in fig. 1.
Reference numeral, 1, an anti-corrosion platform; 2. a driving rotating shaft; 3. a first bearing seat; 4. a support jacket; 5. a leather pressing frame; 6. a fixed support table; 7. a threaded rod; 8. screwing a screw cap; 9. a driving motor; 10. a sliding platform; 11. a power belt; 12. a power shaft; 13. a belt wheel; 14. maintaining the cover plate; 15. a base; 16. penetrating through the chute; 17. a second bearing seat; 18. a reduction motor; 19. an anti-corrosion protrusion; 20. a seamless line pipe; 21. a through groove; 22. a hot pinch roller; 23. hot briquetting; 24. a rubber belt winding wheel; 25. a protective groove; 26. a flame gun; 27. damping rotating frame; 28. a guide wheel; 29. a positioning groove; 30. an assembly groove; 31. a rubber corrosion resistant layer; 32. a polyurethane glue layer; 33. an epoxy powder layer.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Embodiment one: as shown in fig. 4-11, the embodiment of the invention provides an anti-corrosion seamless pipe, which comprises a seamless pipe 20, wherein a spiral anti-corrosion protrusion 19 is arranged at the outer wall of the seamless pipe 20, an epoxy powder layer 33 is arranged at the outer wall of the seamless pipe 20, a polyurethane glue layer 32 is arranged at the outer side of the epoxy powder, a rubber corrosion resistant layer 31 is arranged at the outer side of the polyurethane glue layer 32, the anti-corrosion protrusion 19 plays a main anti-corrosion role, the polyurethane glue layer 32 has an adhesive role and has an anti-corrosion role, the epoxy powder layer 33 performs further anti-corrosion, the anti-corrosion protrusion 19 preferentially corrodes the anti-corrosion protrusion 19 when the rubber corrosion resistant layer 31 and the epoxy powder layer 33 lose the anti-corrosion role, the corrosion speed of the seamless pipe 20 is slowed down, the spiral anti-corrosion protrusion 19 facilitates pushing the seamless pipe 20 to move under the action of a hot-pressing block 23 of a hot-pressing wheel 22, and the rear seamless pipe 20 is wound with the hot-pressing rubber corrosion resistant layer 31;
the positioning groove 29 is formed in the outer wall position of one end of the seamless pipeline tube 20, the assembly groove 30 is formed in the inner wall position of one end, away from the positioning groove 29, of the seamless pipeline tube 20, and the positioning groove 29 and the assembly groove 30 facilitate assembly and positioning of two adjacent seamless pipeline tubes 20.
Embodiment two: as shown in fig. 1-3, a method for manufacturing a corrosion-resistant seamless line pipe specifically comprises the following preparation steps:
after casting the steel seamless line pipe 20, welding the anti-corrosion protrusion 19 by a spiral pipe welding machine, polishing the surface of the anti-corrosion protrusion 19 to be level by a polishing machine, polishing the surface of the anti-corrosion protrusion 19 to be level, and fully contacting and hot-pressing the rubber anti-corrosion layer 31 with the anti-corrosion protrusion 19 to be fixed;
step two, performing shot blasting on the surface of the seamless tube 20, blowing out impurities on the surface of the seamless tube 20 through a high-pressure fan, heating the seamless tube 20 through an intermediate-frequency heater, and cleaning rust and impurities on the surface of the seamless tube 20 through shot blasting after the seamless tube 20 is naturally cooled to room temperature, so that the treatment flaws of the impurities during the corrosion prevention treatment are avoided;
thirdly, coating an epoxy powder layer 33 on the surface of the seamless pipeline tube 20 through an electrostatic spraying machine, spraying a polyurethane glue layer 32 on the outer side of the epoxy powder layer 33 after coating, and hot-pressing a rubber corrosion resistant layer 31 on the outer side of the polyurethane glue layer 32 through an anti-corrosion machine after the polyurethane glue layer 32 is dried;
fourthly, turning a positioning groove 29 on the outer wall of one end of the seamless pipeline tube 20 through a lathe, turning an assembling groove 30 on the inner wall of one end of the seamless pipeline tube 20 far away from the positioning groove 29, and chamfering the positions of the positioning groove 29 and the assembling groove 30, wherein the positioning groove 29 and the assembling groove 30 can be convenient for mutually matching between adjacent seamless pipeline tubes 20, and positioning and assembling are convenient;
and fifthly, spraying paraffin on the surface of the rubber corrosion resistant layer 31, spraying and cleaning after the paraffin is coagulated, sealing the two end positions of the seamless pipeline tube 20, wherein the spraying paraffin can protect the surface of the rubber corrosion resistant layer 31, sealing the two end positions and protecting the inner side of the seamless pipeline tube 20.
The rubber corrosion-resistant layer 31 is arranged in a convex shape, the width of two sides of the rubber corrosion-resistant layer 31 is half of the width of the corrosion-resistant bulge 19, the width of the bulge part in the middle of the rubber corrosion-resistant layer 31 is the pitch of the corrosion-resistant bulge 19, the bulge depth of the rubber corrosion-resistant layer 31 is the height of the corrosion-resistant bulge 19, the bulge part of the rubber corrosion-resistant layer 31 is fully inlaid in a gap between the corrosion-resistant bulges 19 in a hot pressing mode, the two sides of the rubber corrosion-resistant layer 31 are paved on the surface of the corrosion-resistant bulge 19, the surfaces of the corrosion-resistant bulges 19 are covered by the two sides of the rubber corrosion-resistant layer 31 and bonded together in a hot pressing mode, the two sides of the rubber corrosion-resistant layer 31 are the weakest positions of the whole rubber corrosion-resistant layer 31, and corrosive substances firstly permeate the corrosion-resistant bulge 19 when a hot pressing joint position is damaged, so that the corrosion-resistant bulge 19 is preferentially corroded, and the seamless pipe 20 cannot be directly corroded.
The corrosion prevention machine comprises a corrosion prevention platform 1 and a leather pressing frame 5, a maintenance cover plate 14 is arranged at the middle position of one side of the corrosion prevention platform 1, which is close to the leather pressing frame 5, a speed reduction motor 18 is fixedly connected to the position of one side, which is close to the maintenance cover plate 14, of the inner bottom wall of the corrosion prevention platform 1, and a second bearing seat 17 is fixedly connected to the position of one side, which is positioned at the driving end of the speed reduction motor 18, of the inner bottom wall of the corrosion prevention platform 1.
The position of the second bearing seat 17 is provided with a power shaft 12, the power shaft 12 is fixedly connected with the driving end of a speed reduction motor 18, one end position of any one driving rotating shaft 2, which is close to the leather pressing frame 5, and the position of the outer wall of the power shaft 12 are fixedly connected with belt wheels 13 in a penetrating manner, a power belt 11 is arranged between the two belt wheels 13, the leather pressing frame 5 is provided with a protection groove 25 at one side position of a guide wheel 28, and the inner wall position of the protection groove 25 is rotationally connected with a damping rotating frame 27.
The damping rotating frame 27 clamping jaw position fixed centre gripping has the flame gun 26, the protection groove 25 accomodates damping rotating frame 27, ensure that flame gun 26 aims at seamless pipeline tube 20 position, damping rotating frame 27 realizes damping rotation, conveniently adjust flame gun 26 flame angle, flame gun 26 blowout high temperature flame heats rubber corrosion resistant layer 31, abundant fixed when making things convenient for the hot pressing, anticorrosive platform 1 surface position is provided with pipeline rotary device, pipeline rotary device includes four first bearing frames 3 that are rectangular distribution, be provided with initiative pivot 2 between two first bearing frames 3 that four first bearing frames 3 are located same one side, two initiative pivot 2 outer wall position fixedly connected with support overcoat 4, first bearing frame 3 can realize supporting initiative pivot 2, make it rotate, support overcoat 4 can protect initiative pivot 2, and the surface is convex setting, reduce frictional force, conveniently make seamless pipeline tube 20 remove and overturn under the effect of hot pressing wheel 22 and hot pressing piece 23, two initiative pivot 2 are perpendicular setting with the pressure skin frame 5 lateral wall.
The equal fixedly connected with base 15 in four corner positions of anticorrosive platform 1 lower surface, press 5 both sides positions of frame to be provided with hot pressing tectorial membrane structure, hot pressing tectorial membrane structure includes hot pressing wheel 22, hot pressing wheel 22 outer wall position fixedly connected with hot briquetting 23 that spiral set up, press frame 5 is kept away from hot briquetting 23 one side position and is provided with sliding platform 10, can realize pressing rubber corrosion resistant layer 31 abundant in seamless line pipe 20's outside through hot briquetting 23 and hot pressing wheel 22, and the hot briquetting 23 realization that the spiral set up realizes with anticorrosive protruding 19 cooperation that seamless line pipe 20 removes.
The driving motor 9 is fixedly connected to the middle position of the upper surface of the sliding platform 10, the driving end of the driving motor 9 is fixedly connected with the center position of the side wall of the hot pressing block 23 through a shaft, the threaded rods 7 are fixedly connected to the four corner positions of the upper surface of the sliding platform 10 in a penetrating and sliding mode, the fixed supporting tables 6 are fixedly connected to the two ends of the two threaded rods 7 on the same side, the sliding platform 10 can bear and support the driving motor 9, power is provided for the hot pressing wheel 22 through the driving motor 9, the height of the sliding platform 10 is adjusted through the threaded rods 7, clamping and fixing are carried out through screw nuts 8 on the upper side and the lower side, and the fixed supporting tables 6 are used for fixedly supporting the threaded rods 7.
The fixed support 6 is fixedly connected with the side wall of the leather pressing frame 5, screw nuts 8 are connected through threads at the positions, located on the two sides of the sliding platform 10, of the outer sides of the four threaded rods 7, a penetrating chute 16 which is vertically arranged is formed in the middle of the surface of the leather pressing frame 5, a penetrating groove 21 is formed in the position, located right below the penetrating chute 16, of the leather pressing frame 5, a rubber belt winding wheel 24 is connected to the position, located above one side, close to the hot pressing block 23, of the leather pressing frame 5 through shaft rotation, and a guide wheel 28 is connected to the position, located below the rubber belt winding wheel 24, of the leather pressing frame 5.
Working principle: the seamless pipeline tube 20 welded with the anti-corrosion protrusions 19 passes through the through grooves 21 and is placed at the positions of the two supporting jackets 4, the rubber anti-corrosion layer 31 is wound on the outer side of the rubber belt winding wheel 24, the rubber belt winding wheel 24 is pulled to pass through the position below the guide wheel 28 and is wound on the outer side of the seamless pipeline tube 20, the screwing nuts 8 are loosened, the position of the sliding platform 10 is adjusted, the hot pressing wheel 22 is clamped at the position of the seamless pipeline tube 20, the screwing nuts 8 on the two sides of the sliding platform 10 are screwed again, the driving motor 9 is started, the hot pressing wheel 22 is rotated, the flame gun 26 and the speed reducing motor 18 are started, the flame gun 26 heats the rubber anti-corrosion layer 31, the rubber anti-corrosion layer 31 is thermally pressed at the outer wall position of the seamless pipeline tube 20 through the hot pressing wheel 22, the speed reducing motor 18 drives the belt wheel 13 and the power belt 11 to rotate, the supporting jackets 4 and the driving rotating shaft 2 rotate, the seamless pipeline tube 20 are rotated, and the seamless pipeline tube 20 is pushed to move under the actions of the hot pressing wheel 22 and the hot pressing blocks 23, and the rubber anti-corrosion layer 31 is uniformly heated at the surface position of the seamless pipeline tube 20.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.
Claims (8)
1. The anti-corrosion seamless line pipe comprises a seamless line pipe (20), and is characterized in that an anti-corrosion protrusion (19) which is spirally arranged is arranged at the outer wall position of the seamless line pipe (20), an epoxy powder layer (33) is arranged at the outer wall position of the seamless line pipe (20), a polyurethane glue layer (32) is arranged at the outer side position of the epoxy powder, and a rubber anti-corrosion layer (31) is arranged at the outer side position of the polyurethane glue layer (32);
a positioning groove (29) is formed in the outer wall position of one end of the seamless pipeline tube (20), and an assembly groove (30) is formed in the inner wall position of one end, far away from the positioning groove (29), of the seamless pipeline tube (20);
the rubber corrosion-resistant layer (31) is the setting of "protruding" font, and the width of rubber corrosion-resistant layer (31) both sides is the half of anticorrosive protruding (19) width, the width of the protruding part in middle part of rubber corrosion-resistant layer (31) is the pitch of anticorrosive protruding (19), and the protruding degree of depth of rubber corrosion-resistant layer (31) is the height of anticorrosive protruding (19), make the protruding part of rubber corrosion-resistant layer (31) fully inlay the hot pressing in the gap between anticorrosive protruding (19), the tiling of rubber corrosion-resistant layer (31) both sides position is at the surface position of anticorrosive protruding (19), and anticorrosive protruding (19) surface is covered by rubber corrosion-resistant layer (31) both sides, and hot pressing bonding is in the same place.
2. The method for manufacturing a corrosion resistant seamless line pipe according to claim 1, comprising the specific steps of:
after the steel seamless line pipe (20) is cast, welding an anti-corrosion protrusion (19) through a spiral pipe welding machine, and polishing the surface of the anti-corrosion protrusion (19) to be level through a polishing machine;
secondly, performing shot blasting on the surface of the seamless pipeline tube (20), blowing out impurities on the surface of the seamless pipeline tube (20) through a high-pressure fan, heating the seamless pipeline tube (20) through an intermediate-frequency heater, and naturally cooling the seamless pipeline tube (20) to room temperature;
coating an epoxy powder layer (33) on the surface of the seamless pipeline tube (20) through an electrostatic spraying machine, spraying a polyurethane glue layer (32) on the outer side of the epoxy powder layer (33) after coating, and carrying out hot-pressing on a rubber corrosion-resistant layer (31) on the outer side of the polyurethane glue layer (32) through an anti-corrosion machine after the polyurethane glue layer (32) is dried;
fourthly, turning a positioning groove (29) on the outer wall of one end of the seamless pipeline tube (20) through a lathe, turning an assembling groove (30) on the inner wall of one end of the seamless pipeline tube (20) away from the positioning groove (29), and chamfering the positions of the positioning groove (29) and the assembling groove (30);
and fifthly, spraying paraffin on the surface position of the rubber corrosion resistant layer (31), spraying and cleaning after the paraffin is coagulated, and sealing the two ends of the seamless pipeline tube (20).
3. The manufacturing method of the anti-corrosion seamless pipeline tube according to claim 2, wherein the anti-corrosion machine comprises an anti-corrosion platform (1) and a leather pressing frame (5), a pipeline rotating device is arranged at the surface position of the anti-corrosion platform (1), hot pressing film covering structures are arranged at the two side positions of the leather pressing frame (5), the pipeline rotating device comprises four first bearing seats (3) which are distributed in a rectangular mode, an active rotating shaft (2) is arranged between the two first bearing seats (3) which are positioned on the same side of the four first bearing seats (3), a supporting jacket (4) is fixedly connected to the outer wall position of the active rotating shaft (2), the two active rotating shafts (2) are perpendicular to the side wall of the leather pressing frame (5), and bases (15) are fixedly connected to the four corner positions of the lower surface of the anti-corrosion platform (1).
4. The manufacturing method of the corrosion-resistant seamless line pipe according to claim 3, wherein the hot-pressing film-covering structure comprises a hot pressing wheel (22), a hot pressing block (23) which is spirally arranged is fixedly connected to the outer wall of the hot pressing wheel (22), a penetrating chute (16) which is vertically arranged is formed in the middle of the surface of the leather pressing frame (5), a penetrating groove (21) is formed in the position, which is right below the penetrating chute (16), of the leather pressing frame (5), a rubber belt winding wheel (24) is connected to the upper position, which is close to one side of the hot pressing block (23), of the leather pressing frame (5) through shaft rotation, and a guide wheel (28) is connected to the lower position, which is close to one side of the hot pressing block (23), of the rubber belt winding wheel (24) through rotation.
5. A method for manufacturing an anti-corrosion seamless line pipe according to claim 3, wherein a protective groove (25) is formed in the position of the leather pressing frame (5) on one side of the guide wheel (28), a damping rotating frame (27) is rotatably connected to the inner wall of the protective groove (25), and a flame gun (26) is fixedly clamped at the clamping jaw position of the damping rotating frame (27).
6. The manufacturing method of the anti-corrosion seamless line pipe according to claim 4, wherein a sliding platform (10) is arranged at a position, far away from a hot pressing block (23), of the leather pressing frame (5), a driving motor (9) is fixedly connected to the middle position of the upper surface of the sliding platform (10), the driving end of the driving motor (9) is fixedly connected to the central position of the side wall of the hot pressing block (23) through a shaft, threaded rods (7) penetrate through four corner positions of the upper surface of the sliding platform (10), fixed supporting tables (6) are fixedly connected to two ends of the threaded rods (7) on the same side, the fixed supporting tables (6) are fixedly connected with the side wall of the leather pressing frame (5), and screw nuts (8) are fixedly connected to the positions, on the outer sides of the threaded rods (7), of the two sides of the sliding platform (10) through threads.
7. A method for manufacturing an anti-corrosion seamless line pipe according to claim 3, wherein a maintenance cover plate (14) is arranged at a position, close to one side of a leather pressing frame (5), of the anti-corrosion platform (1), a speed reduction motor (18) is fixedly connected to a position, close to one side of the maintenance cover plate (14), of an inner bottom wall of the anti-corrosion platform (1), a second bearing seat (17) is fixedly connected to a position, close to one side of a driving end of the speed reduction motor (18), of the inner bottom wall of the anti-corrosion platform (1), a power shaft (12) is arranged at a position of the second bearing seat (17), and the power shaft (12) is fixedly connected with the driving end of the speed reduction motor (18).
8. The manufacturing method of the corrosion-resistant seamless pipeline tube according to claim 7, wherein a belt wheel (13) is fixedly connected at one end position of the driving rotating shaft (2) close to the leather pressing frame (5) and at the outer wall position of the power shaft (12), and a power belt (11) is arranged between the two belt wheels (13).
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| CN202310612459.6A CN116336299B (en) | 2023-05-29 | 2023-05-29 | Corrosion-resistant seamless line pipe and manufacturing method thereof |
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| CN204692796U (en) * | 2015-08-03 | 2015-10-07 | 湖南双马新材料科技有限公司 | A kind of composite pipe with helical corrugation stiffening rib outer surface coating |
| KR102137228B1 (en) * | 2019-09-09 | 2020-07-23 | 권태웅 | Corrosion prevention multiunit pipe |
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