DE2239899B2 - Device for the continuous application of an anti-corrosion paint to the inner surface of a tube continuously bent from a flat steel strip as it passes through form rollers - Google Patents
Device for the continuous application of an anti-corrosion paint to the inner surface of a tube continuously bent from a flat steel strip as it passes through form rollersInfo
- Publication number
- DE2239899B2 DE2239899B2 DE19722239899 DE2239899A DE2239899B2 DE 2239899 B2 DE2239899 B2 DE 2239899B2 DE 19722239899 DE19722239899 DE 19722239899 DE 2239899 A DE2239899 A DE 2239899A DE 2239899 B2 DE2239899 B2 DE 2239899B2
- Authority
- DE
- Germany
- Prior art keywords
- pipe
- spray
- iron core
- tube
- welded
- 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.)
- Granted
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
-
- 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
- B05D7/22—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 internal surfaces, e.g. of tubes
- B05D7/222—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 internal surfaces, e.g. of tubes of pipes
-
- 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
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/09—Making tubes with welded or soldered seams of coated strip material ; Making multi-wall tubes
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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
- F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
- F16L58/1027—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe the coating being a sprayed layer
-
- 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
-
- 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
- F16L58/109—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being an extruded layer
-
- 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
- B05D2254/00—Tubes
- B05D2254/04—Applying the material on the interior of the tube
- B05D2254/06—Applying the material on the interior and exterior of the tube
-
- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0218—Pretreatment, e.g. heating the substrate
- B05D3/0245—Pretreatment, e.g. heating the substrate with induction heating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Spray Control Apparatus (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Description
nen Spannungen fast vollständig abgebaut werden. Durch diese gleichmäßige Erhitzung des Rohres wird außerdem ein gleichmäßiges Einbrennen des Antikorrosionsanstriches bewirkt, so daß ein Schutz mit vorzüglicher Haftung erzielt wird. Da das Kühlmittel r> sowohl das Spritzrohr als auch die Eisenkerne unmittelbar berührt, ist für eine gute Wärmeabführung gesorgt, so daß weder das Schutzmittel im Spritzrohr noch die Wirkung der Eisenkerne aufgrund der beim Schweißen austretenden Hitze beeinträchtigt werden.tensions are almost completely relieved. This uniform heating of the pipe also causes the anti-corrosion paint to burn in evenly, so that protection with excellent adhesion is achieved. Since the coolant r> both the spray pipe and the iron cores directly affected, is providing good heat dissipation, so that neither the protecting agent in the spray pipe nor the effect of the iron cores are affected by the emerging welding heat.
Nach einer vorteilhaften Weiterbildung weist die auf dem Spritzrohr an der der Spritzdüse abgewandten Seite des Eisenkerns angeordnete, als Rohrhalter ausgebildete Halteixing eine Kühlmitteldurchirittsöffnung zum äußeren Raum und eine KühlmitteMurch- i> trittsöffnung zum inneren Raum auf. Die Kühlmitteldurchtrittsöffnung zum äußeren Raum steht mit einem Kühlmitteleinlaßrohr und die Kühlmitteldurchiriitsöffnung zum inneren Raum mit einem Kühlmntelauslaßrohr in Verbindung. 2»According to an advantageous further development, the one on the spray tube facing away from the spray nozzle Side of the iron core, designed as a pipe holder, a holding fixture a coolant passage opening to the outer space and a cooling medium passage opening to the inner space. The coolant passage opening to the outer space stands with a coolant inlet pipe and the coolant passage opening to the inner space with a cooling medium outlet pipe in connection. 2 »
Vorteilhaft sind an beiden Enden des Eisenkerns bzw. der Eisenkerne Isoliermuffen angeordnet, die den gleichen Durchmesser wie die Eisenkerne aufweisen. In den Isoliermuffen sitzen an der dem Eisenkern abgewandten Seite Isolierrohre, von denen das eine im r> Rohrhalter und das andere in der als verschiebbare Gleitmuffe ausgebildeten, der Spritzdüse benachbarten Halterung gehalten ist Zwischen der verschiebbaren Gieitmuffe und der als Kappe ausgebildeten, auf dem Spritzrohr sitzenden und das Gehäiiserohr tragenden so Halterung ist vorteilhaft eine vorgespannte Spiraldruckfeder angeordnetInsulating sleeves are advantageously arranged at both ends of the iron core or the iron cores, which the have the same diameter as the iron cores. In the insulating sleeves sit on the iron core remote side insulating pipes, one of which is in the pipe holder and the other in the as a sliding Sliding sleeve formed, the spray nozzle adjacent bracket is held between the displaceable Gieitmuffe and designed as a cap on the Spray pipe seated and the housing pipe supporting so Bracket is advantageously arranged a pretensioned spiral compression spring
Die Erfindung ist in den Zeichnungen beispielhaft dargestellt. Es zeigtThe invention is illustrated by way of example in the drawings. It shows
F i g. 1 eine schematische Darstellung der Fertigung r> eines kunststoffuinmanlelten Rohres nach der Erfindung, F i g. 1 a schematic representation of the production r> a plastic-wrapped pipe according to the invention,
F i g. 2 Querschnitte des Rohres bei den verschiedenen Fertigungsabschnitten,F i g. 2 cross-sections of the pipe in the various production sections,
F i g. 3 eine vergrößerte Darstellung eines Teils der Anordnung nach Fig. 1,F i g. 3 shows an enlarged illustration of part of the arrangement according to FIG. 1,
F i g. 4 die Vorrichtung zum Aufbringen des Korrosionsschutzes, F i g. 4 the device for applying the corrosion protection,
F i g. 5 Schnitte nach E-E F-F. G-G. H-H und /-/ der Vorrichtung nach Fig.4.F i g. 5 cuts according to EE FF. GG. HH and / - / of the device according to Figure 4.
Nach F i g. 1 durchläuft ein Stahlband 2. das von einer Vorratsrolle 1 kommt. Druckrollen 3 und 4 und anschließend eine Gruppe von Formrollen 5, wobei es zu einem Rohr gebogen wird. Die aneinander kommenden Kanten werden fortlaufend unter starkem Formdruck verschweißt, wozu sie einer hochfrequenten Induktionshitze ausgesetzt werden. Dadurch entsteht ein Stahlrohr 6, dessen Querschnitt im Fig.2A yezetgt ist, wobei die Schweißstelle mit 7 bezeichnet istAccording to FIG. 1 runs through a steel belt 2. that of a Supply roll 1 is coming. Pressure rollers 3 and 4 and then a group of forming rollers 5, with it is bent into a tube. The edges that come together are continually under strong Form pressure welded, for which purpose they are exposed to high-frequency induction heat. This creates a steel tube 6, the cross section of which is shown in FIG. 2A is, where the weld is designated by 7
Wie besonders in Fig.3 zu erkennen ist sind im Stahlrohr 6 ein Spritzrohr 9 für die Rostschutzfarbe und eine Induktionsvorrichtung 10 angeordnet Das Spritzrohr 9 ragt durch den noch weit offenen Spalt zwischen den Kanten des rohrförmig gebogenen Stahlbandes bis ins Rohrinnere. Am vorderen Ende des Spritzrohres 9 bo ist eine Spritzdüse 11 zum Sprühen der Rostschutzfarbe in axialer Richtung angeordnet Die Düse 11 liegt etwa 20 bis 30 cm vor der Nahtstelle 20 des geschlossenen Rohres. Das Spritzrohr 9 ist mit einer Spritzpistolenanordnung 12 verbunden. Außerhalb des Rohres ist nahe der Nahtstelle 20 eine Arbeitsspule 8 angeordnetAs can be seen particularly in Fig. 3 are in Steel pipe 6, a spray pipe 9 for the anti-rust paint and an induction device 10 arranged the spray pipe 9 protrudes through the still wide open gap between the edges of the tubular steel band inside the pipe. At the front end of the spray tube 9 bo a spray nozzle 11 is arranged for spraying the anti-rust paint in the axial direction. The nozzle 11 is approximately 20 to 30 cm in front of the seam 20 of the closed pipe. The spray tube 9 is provided with a spray gun assembly 12 connected. A work coil 8 is arranged outside the tube near the interface 20
Die innere Beschichtung des Stahlrohres 6 wird in Nahtstelle 20 ausgeführt, so daß die Beschichtung unter Ausnutzen der vom Schweißen verbleibenden Hitze als Brennbeschichtung erfolgt Als Rostschutzfarbe hat sich beispielsweise eine phthalsäurehakige Kunststoffarbc am besten bewährt In F i g. 2B ist der Querschnitt eines Stahlrohres mit innerer Rostschutzbeschichtung 13 gezeigtThe inner coating of the steel pipe 6 is carried out in seam 20, so that the coating under The heat remaining from welding is used as a flame coating for example a phthalic acid hooked plastic paint best proven In F i g. 2B is the cross-section of a steel pipe with an internal anti-rust coating 13 shown
Das Stahlrohr 6 mit der innenseitigen Beschichtung 13 durchläuft Richtrollen 14 und kommt zu einer Anordnung 15 zum Sprühen von Haftmittel und zum Wiedergewinnen der Haftmittelreste. Dort wird ein Haftmittel 16 auf die Oberfläche des Stahlrohres aufgebracht. Der entsprechende Querschnitt ist in F i g. 2C gezeigt.The steel pipe 6 with the inside coating 13 passes through straightening rollers 14 and comes to a Arrangement 15 for spraying adhesive and recovering residual adhesive. There will be a Adhesive 16 applied to the surface of the steel pipe. The corresponding cross-section is in F i g. 2C shown.
Vorteilhaft wird ein thermoplastisches Haftmittel 16 verwendet, um einen guten Kunststoffmantel zu erhalten. Die Güte hängt sehr von der Art des benutzten Kunststoffes ab. Wenn beispielsweise ABS-Kunstharz als Beschichtung verwendet wird, bringt ein Gummihaftmittel ein gutes Ergebnis. Dabei wird das Stahlrohr 6, auf dessen Oberfläche das Haftmittel 16 aufgebracht ist, durch eine Form 17 eines Extruders geführt, um es zu formen und mit dem synthetischen Kunstharz zu bedecken. So wird ein gewünschtes kunsts;offummanteltes, mit Haftmittel versehenes Rohr 18 erhalten.A thermoplastic adhesive 16 is advantageously used in order to provide a good plastic jacket obtain. The quality depends very much on the type of plastic used. For example, if ABS resin is used as a coating, a rubber adhesive gives a good result. In doing so, the steel pipe 6, on the surface of which the adhesive 16 is applied, passed through a mold 17 of an extruder to supply it shape and cover with synthetic resin. So a desired art; open-sheathed, tube 18 provided with adhesive is obtained.
Sein Querschnitt ist in F i g. 2D gezeigt, wobei mit 19 die Kunststoffummantelung bezeichnet ist.Its cross section is shown in FIG. 2D shown, with 19 the plastic coating is designated.
Nach Fig. 4 hat die Induktionsvorrichtung 10 im Inneren des Rohres ferromagnetische Kerne 101, die konzentrisch um das Spritzrohr angeordnet sind.According to FIG. 4, the induction device 10 has ferromagnetic cores 101 inside the tube, which are arranged concentrically around the spray tube.
Der innere Durchmesser der Kerne 101 soll ein wenig größer als der äußere Durchmesser des Spritzrohres 9 sein. Der äußere Durchmesser ist durch den inneren Durchmesser des Stahlrohres 6 begrenzt. Die Kerne 101 können aus einem Stück als ein langer hohler Zylinder oder aus mehreren verschiedenen Zylindern gefertigt sein. Vorteilhaft ist der Zwischenraum /(normalerweise etwa 80 mm) zwischen der Arbeitsspule 8 und der Nahtstelle 20 veränderbar, indem die Anzahl der Spulen vermehrt oder verringert wird. Ein ringförmiger Kern kann aus einer Anzahl von kleinen Eisenstücken gefertigt werden, die miteinander veitftunden und kreisförmig angeordnet sind, was die gleiche Wirkung wie bei einem einzigen Kern ergibt.The inner diameter of the cores 101 should be a little larger than the outer diameter of the spray tube 9 be. The outer diameter is limited by the inner diameter of the steel tube 6. The cores 101 can be made from one piece as a long hollow cylinder or from several different cylinders be. The gap / (normally about 80 mm) between the work coil 8 and the is advantageous Interface 20 can be changed by increasing or decreasing the number of coils. An annular core can be made from a number of small pieces of iron that are joined together and are arranged in a circle, which gives the same effect as a single core.
An beiden Enden der Kerne sind Muffen 102 aus elektrisch isolierendem Material, beispielsweise Bakelit, mit den gleichen Ausmaßen wie die Kerne 101 befestigt. Bei Muffen 102 und ein Rohr 103, das ebenfalls aus elektrisch isolierendem Material, wie Bakelit, besteht, sind durch Einschrauben miteinander verbunden. Ein Rohrhalter 104 ist durch Schrauben an dem Rohr 103 an der linken Seite in Fig.4 befestigt. Der Rohrhalter 104 ist in ein Gehäuserohr 105 aus isolierendem und hitzebeständigem Material, beispielsweise Melaminkunstharz mit Glasfasern, wasserdicht eingeschraubt. Das Gehäuserohr 105 hat einen etwas größeren inneren Durchmesser als der Außendurchmesser der Kerne 101. Eine Gleitmuffe 106 ist eingeschraubt, um das Rohr 103 an der rechten Seite in Fig.4 zu halten. Eine Spiralfeder 108, die einen Druck ausübt, ist zwischen einer Kappe 107, die das Gehäuserohr 105 an ihrem anderen Ende berührt, und der gleitenden Muffe 106 gehalten.At both ends of the cores there are sleeves 102 made of electrically insulating material, for example Bakelite, attached to the same dimensions as the cores 101. At sockets 102 and a pipe 103, which is also made electrically insulating material, such as Bakelite, are connected by screwing them together. A Tube holder 104 is fastened by screws to tube 103 on the left-hand side in FIG. The pipe holder 104 is in a housing tube 105 made of insulating and heat-resistant material, for example melamine synthetic resin with fiberglass, screwed in watertight. The housing tube 105 has a slightly larger inner one Diameter than the outside diameter of the cores 101. A sliding sleeve 106 is screwed around the pipe 103 on the right side in Fig. 4. A coil spring 108 that applies pressure is between a cap 107 which contacts the housing tube 105 at its other end and the sliding sleeve 106 held.
In einigen Fällen kommt es vor, daß die Kerne durch Haftmittel abhängig von der Form der Kerne und der Länge der Reihe miteinander verbunden sein sollen. Die Länge der Kerne kann durch den Abstand der MuffenIn some cases it happens that the cores by adhesive depending on the shape of the cores and the Length of the row should be connected to each other. The length of the cores can be determined by the distance between the sleeves
einer Entfernung von nur etwa 20 bis 30 cm vor der 106 und der Kappe 107 entsprechend der Läp."e ! unda distance of only about 20 to 30 cm in front of the 106 and the cap 107 according to the Läp. "e! and
der Kernreihe verändert werden.of the core row can be changed.
Da es notwendig ist, die Kerne 101, die durch die Induktionsenergie erhitzt werden, gut zu kühlen, und ihre magnetische Leitfähigkeit zu verbessern, ist es erforderlich, eine Anordnung zur Zirkulation von kaltem Wasser, wie sie im Querschnitt in F i g. 5E und 5F gezeigt ist, vorzusehen. Diese hat zwei Kühlmitteldurchtrittsöffnungen 1041 und 1042, die in axialer Richtung durch den Rohrhallcr 104 an der linken Seite der F i g. 4 gehen.Since it is necessary to cool the cores 101 heated by the induction energy well, and To improve their magnetic conductivity, it is necessary to have an arrangement for the circulation of cold water, as shown in cross section in F i g. 5E and 5F. This has two coolant passage openings 1041 and 1042, which extend in the axial direction through the tubular hall 104 on the left-hand side of FIG. 4th walk.
Die Öffnung 1041 hat eine Verbindung mil dem geschlossenen äußeren Raum 1091 zwischen dem Gehäuse 105 und dem zylindrischen Körper, der aus dem Rohr 103, der Muffe 102 und der Reihe der Kerne !0! besteht.The opening 1041 has a connection with the closed outer space 1091 between the housing 105 and the cylindrical body consisting of the pipe 103, the socket 102 and the row of cores! 0! consists.
tin geschlossener innerer Raum 1092 liegt zwischen dem Zylinder, bestehend aus dem Rohr 103, der Muffe 102 und der Reihe der Kerne 101 und dem Spritzrohr 9, das in die Mitte des Zylinders eingeschoben ist. Dieser Raum ist mit der anderen Öffnung 1042 verbunden. Die inneren und äußeren Räume 1091 und 1092 sind durch einen Verbindungskanal 1031, der in dem Rohr 103 an der rechten Seite entsprechend F i g. 51 gebohrt ist, verbunden. Der so gebildete Hohlraum dient zur Zirkulation von Kühlwasser.The closed inner space 1092 lies between the cylinder, consisting of the pipe 103, the sleeve 102 and the row of cores 101 and the spray tube 9, which is pushed into the center of the cylinder. This Space is connected to the other opening 1042. The inner and outer spaces 1091 and 1092 are through a connecting channel 1031, which is located in the pipe 103 on the right-hand side according to FIG. 51 is drilled, tied together. The cavity formed in this way is used for the circulation of cooling water.
Wenn die Einlaß* und Auslaßrohre 21 und 22 für das Wasser mit den Öffnungen 1041 und 1042 verbunden sind und das Kühlwasser fließt, geht das Wasser durch den äußeren Raum 1091 und kommt zurück in den inneren Raum 1092. So werden die Kerne gut gekühlt.When the inlet * and outlet pipes 21 and 22 for the water are connected to the openings 1041 and 1042 and the cooling water is flowing, the water goes through the outer space 1091 and comes back into the inner space 1092. This is how the kernels are well cooled.
Um ein Durchsickern von Wasser zu verhindern, sind Dichtungen JOO in allen Spalten angeordnet, su daß d;is ganze System wasserdicht arbeitet.In order to prevent water seeping through, seals JOO are arranged in all gaps, so that this is whole system works waterproof.
Hierzu 4 Blatt ZeichnungenFor this purpose 4 sheets of drawings
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6150571A JPS572498B2 (en) | 1971-08-12 | 1971-08-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2239899A1 DE2239899A1 (en) | 1973-02-22 |
DE2239899B2 true DE2239899B2 (en) | 1979-10-11 |
DE2239899C3 DE2239899C3 (en) | 1980-06-19 |
Family
ID=13173005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19722239899 Expired DE2239899C3 (en) | 1971-08-12 | 1972-08-14 | Device for the continuous application of an anti-corrosion paint on the inner surface of a pipe continuously bent from a flat steel strip as it passes through form rollers |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS572498B2 (en) |
AU (1) | AU4555172A (en) |
CA (1) | CA1000568A (en) |
DE (1) | DE2239899C3 (en) |
FR (1) | FR2148639B1 (en) |
GB (1) | GB1362916A (en) |
IT (1) | IT963962B (en) |
NL (1) | NL7211058A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4216802A (en) * | 1978-10-18 | 1980-08-12 | Eaton Corporation | Composite tubing product |
CH655986A5 (en) * | 1984-03-16 | 1986-05-30 | Pabreco Sa | METHOD FOR MANUFACTURING A COMPOSITE TUBE. |
US4621399A (en) * | 1985-12-18 | 1986-11-11 | Allied Tube & Conduit Corporation | Tube-coating method and apparatus therefor |
JPH0811206B2 (en) * | 1991-06-10 | 1996-02-07 | 日本鋼管株式会社 | Tubular anticorrosion spray coating method |
CN105562262B (en) * | 2016-02-26 | 2017-11-14 | 安徽工业大学 | A kind of metal tube hot spraying device |
CN106994401A (en) * | 2017-06-07 | 2017-08-01 | 内蒙古君诚兴业管道有限责任公司 | A kind of steel pipe electrostatic coating machine and its painting method |
-
1971
- 1971-08-12 JP JP6150571A patent/JPS572498B2/ja not_active Expired
-
1972
- 1972-08-09 GB GB3712072A patent/GB1362916A/en not_active Expired
- 1972-08-11 FR FR7229189A patent/FR2148639B1/fr not_active Expired
- 1972-08-11 CA CA149,226A patent/CA1000568A/en not_active Expired
- 1972-08-11 IT IT2815172A patent/IT963962B/en active
- 1972-08-11 NL NL7211058A patent/NL7211058A/xx not_active Application Discontinuation
- 1972-08-14 AU AU45551/72A patent/AU4555172A/en not_active Expired
- 1972-08-14 DE DE19722239899 patent/DE2239899C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU4555172A (en) | 1974-02-21 |
GB1362916A (en) | 1974-08-07 |
NL7211058A (en) | 1973-02-14 |
DE2239899A1 (en) | 1973-02-22 |
JPS572498B2 (en) | 1982-01-16 |
JPS4826878A (en) | 1973-04-09 |
FR2148639B1 (en) | 1973-12-07 |
CA1000568A (en) | 1976-11-30 |
IT963962B (en) | 1974-01-21 |
FR2148639A1 (en) | 1973-03-23 |
DE2239899C3 (en) | 1980-06-19 |
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Legal Events
Date | Code | Title | Description |
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C3 | Grant after two publication steps (3rd publication) |