DE3335502C1 - Process and device for covering a preheated steel pipe with pulverulent coating materials - Google Patents
Process and device for covering a preheated steel pipe with pulverulent coating materialsInfo
- Publication number
- DE3335502C1 DE3335502C1 DE19833335502 DE3335502A DE3335502C1 DE 3335502 C1 DE3335502 C1 DE 3335502C1 DE 19833335502 DE19833335502 DE 19833335502 DE 3335502 A DE3335502 A DE 3335502A DE 3335502 C1 DE3335502 C1 DE 3335502C1
- Authority
- DE
- Germany
- Prior art keywords
- pipe
- coating
- steel pipe
- preheated
- plastic
- 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.)
- Expired
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
- B05D7/148—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 using epoxy-polyolefin systems in mono- or multilayers
-
- 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
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
- B05B13/0442—Installation or apparatus for applying liquid or other fluent material to separate articles rotated during spraying operation
-
- 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
-
- 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
- F16L58/1063—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being a sheet wrapped around the pipe
-
- 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
Abstract
Description
Die Aufgabe, die sich die Erfindung gestellt hat, wird durch folgende Verfahrensschritte gelöst: - auf das vorerhitzte Stahlrohr wird zunächst eine Schicht eines heißhärtenden, duroplastischen Kunststoffharzes, wie z. B. Epoxidharz, elektrostatisch aufgesprüht, - danach wird ein Kleber, wie z. B. Äthylencopolymerisat oder Äthylen-Acrylsäurecopolymerisat, aufgesprüht oder aufgeblasen, - ein thermoplastischer Kunststoff, wie z. B. Polyäthylen, wird aufgeschleudert und durch die Wärme des vorerhitzten Rohres aufgesintert - und die aufgesinterte Kunststoffschicht wird anschließend mittels Heizstrahler geglättet. The object set by the invention is achieved by the following Process steps solved: - First a layer is applied to the preheated steel pipe a thermosetting, thermosetting plastic resin, such as. B. epoxy resin, electrostatic sprayed on, - then an adhesive, such as. B. ethylene copolymer or ethylene-acrylic acid copolymer, sprayed on or inflated, - a thermoplastic plastic, such as B. polyethylene, is centrifuged and preheated by the heat of the Sintered on the pipe - and the sintered-on plastic layer is then smoothed by means of a radiant heater.
Zur Durchführung des Verfahrens wird eine Vorrichtung, bestehend aus einem Vorwärmofen, einer Rohrdrehvorrichtung, einer Beschichtungsanlage und einer Heizstrahleranlage, vorgeschlagen, deren zweiteilige Anlage zur Beschichtung des vorerhitzten Rohres mit drei nacheinander aufzubringenden Schichten erfindungsgemäß aus folgenden Komponenten besteht: - einer an sich bekannten Sprüheinrichtung zum Aufbringen des duroplastischen Kunststoffes und des Klebers, die in Längsrichtung über dem Rohr verfahrbar ist und eine in einem zur Rohroberfläche anstellbaren Gehäuse befindliche Pulversprühkammer enthält, in der höhenverstellbare Sprühpistolen angeordnet sind - und einem oder mehreren in Längsrichtung des Rohres verfahrbaren und unter dem Rohr angeordneten Anwurfwagen zum Auftragen des thermoplastischen Kunststoffes. To carry out the method, a device is made from a preheating furnace, a tube turning device, a coating system and a radiant heater system, proposed the two-part system for coating of the preheated tube with three layers to be applied one after the other according to the invention consists of the following components: - a known spray device for Application of the thermosetting plastic and the adhesive in the longitudinal direction can be moved over the pipe and one in a housing that can be adjusted to the pipe surface contains located powder spray chamber, arranged in the height-adjustable spray guns are - and one or more movable in the longitudinal direction of the pipe and under The starting trolley arranged on the pipe for applying the thermoplastic material.
In einer besonderen Ausführungsform kann die Sprüheinrichtung, die normalerweise senkrecht über dem zu beschichtenden Stahlrohr angeordnet ist, seitlich am Stahlrohr auf Schienen vorbeigeführt werden. In a particular embodiment, the spray device, the is normally arranged vertically above the steel pipe to be coated, laterally be guided past the steel pipe on rails.
Das erfindungsgemäße Verfahren zeichnet sich gegenüber den bekannten Verfahren durch folgende Vorteile aus. The method according to the invention is distinguished from the known Process through the following advantages.
Durch das Aufsintern der pulverförmigen Beschichtungsstoffe auf das Stahlrohr entstehen während der Abkühlungsphase gegenüber dem Beschichten mit Folien oder Schläuchen wesentlich geringere Schrumpfspannungen in der Rohrumhüllung sowohl in axialer wie auch in radialer Richtung. By sintering the powder coating materials onto the Steel pipes are created during the cooling phase compared to coating with foils or tubing both have significantly lower shrinkage stresses in the pipe coating in the axial as well as in the radial direction.
Das Aufsintern der pulverförmigen Beschichtungsmaterialien ergibt auf dem gesamten Rohrschaft gleichmäßige Schichtdicken. Hohlräume an den Schweißnahtübergängen entstehen nicht. Im Falle des Aufbringens von Folien oder Schläuchen müssen wegen der entstehenden Zugspannungen im Bereich der Schweißnähte Sondermaßnahmen zur Vermeidung von Hohlräumen getroffen werden. Diese Maßnahmen bedeuten aber erhöhte Schichtdicken und damit höhere Verbrauchsmengen an thermoplastischem Kunststoff, z. B. Polyäthylen. The sintering of the powdery coating materials results Uniform layer thicknesses on the entire tube shaft. Cavities at the weld seam transitions do not arise. In the case of the application of foils or hoses, due the resulting tensile stresses in the area of the weld seams. Special measures to avoid them be hit by cavities. However, these measures mean increased layer thicknesses and thus higher consumption quantities of thermoplastic material, e.g. B. polyethylene.
Die für die Beschichtung bereits vorhandenen Sinteranlagen können relativ einfach und kostensparend in die erfindungsgemäß vorgeschlagene Beschichtungsanlage umgebaut werden. In einer solchen Anlage für eine Einzelrohrbeschichtung können auch kleine Losgrößen kostengünstig beschichtet werden. Im Gegensatz zu einer Extrudervorrichtung, die für jeden Rohrdurchmesser eingerichtet werden muß, bleibt die Vorrichtung zur Sinterbeschichtung für alle Rohrdurchmesser gleich. The sintering systems already available for the coating can relatively simple and cost-saving in the coating system proposed according to the invention to be rebuilt. In such a system for a single pipe coating can even small batches can be coated cost-effectively. In contrast to an extruder device, which must be set up for each pipe diameter, the device remains for Sinter coating the same for all pipe diameters.
Das Verfahren nach der Erfindung soll nachstehend an einem Ausführungsbeispiel näher erläutert werden. The method according to the invention is described below using an exemplary embodiment are explained in more detail.
Es soll ein Stahlrohr mit einem äußeren Durchmesser von 1420 mm, einer Wandstärke von 16,0 mm und einer Länge von 18 m beschichtet werden. Hierfür wird das Rohr über einen Schrägrollgang in eine Außenstrahlanlage gefahren, wo die Rohroberfläche mit Stahlkorn gestrahlt, d. h. gereinigt wird. Das gestrahlte Rohr wird in einem Vorwärmofen auf eine Temperatur am Rohranfang von ca. 3000C und am Rohrende von ca. 3600C (max. 380°C) aufgeheizt. Dieser vom Rohranfang zum Rohrende hin stetig ansteigende Temperaturverlauf ist aus dem deutschen Patent DE-PS 2448 292 bekannt. It should be a steel pipe with an outer diameter of 1420 mm, a wall thickness of 16.0 mm and a length of 18 m can be coated. Therefor the pipe is moved over an inclined roller conveyor to an external blasting system, where the Pipe surface blasted with steel grain, d. H. is cleaned. The blasted pipe is heated in a preheating furnace to a temperature at the beginning of the pipe of approx. 3000C and on Tube end heated to approx. 3600C (max. 380 ° C). This from the beginning of the pipe to the end of the pipe A steadily increasing temperature profile is from the German patent DE-PS 2448 292 known.
Dann wird das erwärmte Rohr von dem Vorwärmofen zu einer Drehvorrichtung transportiert, in der das Rohr mit ca. 12 Umdrehungen pro Minute gedreht wird. Hier wird das Rohr mit Hilfe der speziellen Beschichtungsanlage in folgender Weise beschichtet. Zunächst wird heißhärtendes, pulverförmiges Epoxid mit Hilfe einer in Längsrichtung des Rohres verfahrbaren Aufsprüheinrichtung und darin angeordneten elektrostatischen Sprühpistolen in einer dünnen Schicht von ca. 50 u aufgesprüht. Eine solche Sprühvorrichtung ist aus dem deutschen Patent DE-PS 2451 672 bekannt. Eine in einem Abstand von 120 mm hinter den ersten Sprühpistolen angeordnete zweite Sprühpistole sprüht eine Schicht von ca. 100 ,u pulverförmiges Äthylen-Acrylsäurecopolymerisat als Kleber auf die Epoxidschicht auf. In einem Abstand von 300 mm hinter der Aufsprühvorrichtung für den Dünnschichtenauftrag werden drei Pulveranwurfwagen mit einer Vorschubgeschwindigkeit von 2,5 m/min unter dem drehenden Rohr in Längsrichtung des Rohres entlang gefahren. Diese Anwurfwagen schleudern das Polyäthylenpulver gegen die erwärmte Rohroberfläche. Das aufgeschleuderte Polyäthylenpulver bleibt an der Oberfläche haften und sintert dort zu einer Schicht von mindestens 3 mm Dicke auf. Zur Glättung der Polyäthylenoberfläche wird nach der Beschichtung eine fahrbare Heizstrahleranlage, die mit Gas-/Infrarot-Strahlern bestückt ist, über die Rohrlänge gefahren. Die Rohrenden werden durch Blechabdeckungen in einem Bereich von ca. 150 mm frei von den Ummantelungsschichten gehalten.Then the heated tube is transferred from the preheating furnace to a rotating device transported, in which the pipe is rotated at approx. 12 revolutions per minute. here the pipe is coated in the following way with the help of the special coating system. First, heat-curing, powdered epoxy is applied using a lengthways of the pipe movable spraying device and arranged therein electrostatic Spray guns sprayed on in a thin layer of approx. 50 u. Such a spray device is known from German patent DE-PS 2,451,672. One at a distance of 120 A second spray gun arranged mm behind the first spray guns sprays a layer of about 100, u powdery ethylene-acrylic acid copolymer as an adhesive on the Epoxy layer on. At a distance of 300 mm behind the spray device for The thin layer application is carried out by three powder feed trolleys with one feed speed at a speed of 2.5 m / min under the rotating pipe in the longitudinal direction of the pipe. These trolleys throw the polyethylene powder against the heated pipe surface. The thrown-on polyethylene powder sticks to the surface and sinters there to a layer of at least 3 mm thickness. For smoothing the polyethylene surface After the coating, a mobile radiant heater system with gas / infrared heaters is equipped, moved over the length of the pipe. The pipe ends are covered by sheet metal kept free of the cladding layers in an area of approx. 150 mm.
Danach wird das Rohr von der Drehvorrichtung gehoben und mit Luft abgekühlt. After that, the tube is lifted from the rotating device and filled with air cooled down.
In der Zeichnung ist eine als Beispiel dienende Ausführungsform der erfindungsgemäßen Beschichtungsvorrichtung dargestellt. Es zeigt Fig. 1 eine perspektivische Gesamtansicht der Beschichtungsvorrichtung mit einem zu beschichtenden Rohr und F i g. 2 die Beschichtungsvorrichtung im Querschnitt und in der Seitenansicht. In the drawing, an exemplary embodiment is shown in FIG Coating device according to the invention shown. 1 shows a perspective Overall view of the coating device with a pipe to be coated and F i g. 2 shows the coating device in cross section and in side view.
In der Zeichnung sind durch Ziffern gekennzeichnet: t Rohrdrehvorrichtung 2 das zu beschichtende Rohr 3 Sprühpistole für Epoxidpulver 4 Sprühpistole für Kleberpulver 5 Anwurfwagen für Polyäthylenpulver - Leerseite - The following are identified by numbers in the drawing: t Pipe turning device 2 the pipe to be coated 3 spray gun for epoxy powder 4 spray gun for glue powder 5 launch trolleys for polyethylene powder - blank page -
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833335502 DE3335502C1 (en) | 1983-09-30 | 1983-09-30 | Process and device for covering a preheated steel pipe with pulverulent coating materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833335502 DE3335502C1 (en) | 1983-09-30 | 1983-09-30 | Process and device for covering a preheated steel pipe with pulverulent coating materials |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3335502C1 true DE3335502C1 (en) | 1990-05-10 |
Family
ID=6210562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19833335502 Expired DE3335502C1 (en) | 1983-09-30 | 1983-09-30 | Process and device for covering a preheated steel pipe with pulverulent coating materials |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3335502C1 (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999025776A1 (en) * | 1997-11-14 | 1999-05-27 | E.I. Du Pont De Nemours And Company | Particles and process for corrosion- and creep-resistant coatings |
EP1384931A1 (en) * | 2002-07-27 | 2004-01-28 | Walter Stucke | Insulation and insulating method for the welded joint of a pipe that is insulated with the exception of the welding zone |
WO2004028699A2 (en) * | 2002-09-27 | 2004-04-08 | Surmodics, Inc. | Advanced coating apparatus and method |
WO2006047617A1 (en) * | 2004-10-27 | 2006-05-04 | Surmodics, Inc. | Methods and apparatus for coating stents |
US7125577B2 (en) | 2002-09-27 | 2006-10-24 | Surmodics, Inc | Method and apparatus for coating of substrates |
WO2007062871A1 (en) | 2005-12-03 | 2007-06-07 | Skumtech As | Corrosion protection for anchors in rock |
USRE40722E1 (en) | 2002-09-27 | 2009-06-09 | Surmodics, Inc. | Method and apparatus for coating of substrates |
US8038829B2 (en) | 2006-02-22 | 2011-10-18 | Shawcor Ltd. | Coating method for pipe having weld bead |
CN102635758A (en) * | 2012-04-27 | 2012-08-15 | 中国石油天然气集团公司 | Manufacturing method for hot-melting three-layer powder corrosion-proof elbow pipe |
CN102974489A (en) * | 2011-09-05 | 2013-03-20 | 吕林果 | Automation steel pipe paint sprayer |
US9283350B2 (en) | 2012-12-07 | 2016-03-15 | Surmodics, Inc. | Coating apparatus and methods |
US9308355B2 (en) | 2012-06-01 | 2016-04-12 | Surmodies, Inc. | Apparatus and methods for coating medical devices |
US9364349B2 (en) | 2008-04-24 | 2016-06-14 | Surmodics, Inc. | Coating application system with shaped mandrel |
WO2017117747A1 (en) * | 2016-01-06 | 2017-07-13 | 辽宁亿通钢塑复合管制造有限公司 | Apparatus for applying adhesive on surface of pipe and method for same |
US9827401B2 (en) | 2012-06-01 | 2017-11-28 | Surmodics, Inc. | Apparatus and methods for coating medical devices |
US11090468B2 (en) | 2012-10-25 | 2021-08-17 | Surmodics, Inc. | Apparatus and methods for coating medical devices |
US11628466B2 (en) | 2018-11-29 | 2023-04-18 | Surmodics, Inc. | Apparatus and methods for coating medical devices |
US11819590B2 (en) | 2019-05-13 | 2023-11-21 | Surmodics, Inc. | Apparatus and methods for coating medical devices |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1933662A1 (en) * | 1968-07-02 | 1970-01-08 | Chemo Lak As | Method and device for covering an essentially flat surface of an object with a cover layer |
GB1542333A (en) * | 1977-11-18 | 1979-03-14 | British Steel Corp | Coating of pipes |
DE3047429A1 (en) * | 1980-12-12 | 1982-07-01 | Mannesmann AG, 4000 Düsseldorf | "METHOD FOR SHEATING STEEL TUBES WITH THERMOPLASTIC PLASTIC" |
-
1983
- 1983-09-30 DE DE19833335502 patent/DE3335502C1/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1933662A1 (en) * | 1968-07-02 | 1970-01-08 | Chemo Lak As | Method and device for covering an essentially flat surface of an object with a cover layer |
GB1542333A (en) * | 1977-11-18 | 1979-03-14 | British Steel Corp | Coating of pipes |
DE3047429A1 (en) * | 1980-12-12 | 1982-07-01 | Mannesmann AG, 4000 Düsseldorf | "METHOD FOR SHEATING STEEL TUBES WITH THERMOPLASTIC PLASTIC" |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999025776A1 (en) * | 1997-11-14 | 1999-05-27 | E.I. Du Pont De Nemours And Company | Particles and process for corrosion- and creep-resistant coatings |
EP1384931A1 (en) * | 2002-07-27 | 2004-01-28 | Walter Stucke | Insulation and insulating method for the welded joint of a pipe that is insulated with the exception of the welding zone |
JP4795686B2 (en) * | 2002-09-27 | 2011-10-19 | サーモディクス,インコーポレイティド | Advanced coating apparatus and method |
US7776382B2 (en) | 2002-09-27 | 2010-08-17 | Surmodics, Inc | Advanced coating apparatus and method |
WO2004028699A2 (en) * | 2002-09-27 | 2004-04-08 | Surmodics, Inc. | Advanced coating apparatus and method |
USRE46251E1 (en) | 2002-09-27 | 2016-12-27 | Surmodics, Inc. | Advanced coating apparatus and method |
US7125577B2 (en) | 2002-09-27 | 2006-10-24 | Surmodics, Inc | Method and apparatus for coating of substrates |
US7192484B2 (en) | 2002-09-27 | 2007-03-20 | Surmodics, Inc. | Advanced coating apparatus and method |
WO2004028699A3 (en) * | 2002-09-27 | 2004-05-27 | Surmodics Inc | Advanced coating apparatus and method |
USRE40722E1 (en) | 2002-09-27 | 2009-06-09 | Surmodics, Inc. | Method and apparatus for coating of substrates |
US7669548B2 (en) | 2002-09-27 | 2010-03-02 | Surmodics, Inc. | Method and apparatus for coating of substrates |
JP2006500159A (en) * | 2002-09-27 | 2006-01-05 | サーモディックス,インコーポレイティド | Advanced coating apparatus and method |
US7958840B2 (en) | 2004-10-27 | 2011-06-14 | Surmodics, Inc. | Method and apparatus for coating of substrates |
WO2006047617A1 (en) * | 2004-10-27 | 2006-05-04 | Surmodics, Inc. | Methods and apparatus for coating stents |
WO2007062871A1 (en) | 2005-12-03 | 2007-06-07 | Skumtech As | Corrosion protection for anchors in rock |
US8038829B2 (en) | 2006-02-22 | 2011-10-18 | Shawcor Ltd. | Coating method for pipe having weld bead |
US9364349B2 (en) | 2008-04-24 | 2016-06-14 | Surmodics, Inc. | Coating application system with shaped mandrel |
CN102974489A (en) * | 2011-09-05 | 2013-03-20 | 吕林果 | Automation steel pipe paint sprayer |
CN102635758A (en) * | 2012-04-27 | 2012-08-15 | 中国石油天然气集团公司 | Manufacturing method for hot-melting three-layer powder corrosion-proof elbow pipe |
US9623215B2 (en) | 2012-06-01 | 2017-04-18 | Surmodics, Inc. | Apparatus and methods for coating medical devices |
US9308355B2 (en) | 2012-06-01 | 2016-04-12 | Surmodies, Inc. | Apparatus and methods for coating medical devices |
US9827401B2 (en) | 2012-06-01 | 2017-11-28 | Surmodics, Inc. | Apparatus and methods for coating medical devices |
US10099041B2 (en) | 2012-06-01 | 2018-10-16 | Surmodics, Inc. | Apparatus and methods for coating medical devices |
US10507309B2 (en) | 2012-06-01 | 2019-12-17 | Surmodics, Inc. | Apparatus and methods for coating medical devices |
US11090468B2 (en) | 2012-10-25 | 2021-08-17 | Surmodics, Inc. | Apparatus and methods for coating medical devices |
US9283350B2 (en) | 2012-12-07 | 2016-03-15 | Surmodics, Inc. | Coating apparatus and methods |
WO2017117747A1 (en) * | 2016-01-06 | 2017-07-13 | 辽宁亿通钢塑复合管制造有限公司 | Apparatus for applying adhesive on surface of pipe and method for same |
US11628466B2 (en) | 2018-11-29 | 2023-04-18 | Surmodics, Inc. | Apparatus and methods for coating medical devices |
US11819590B2 (en) | 2019-05-13 | 2023-11-21 | Surmodics, Inc. | Apparatus and methods for coating medical devices |
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Owner name: PREUSSAG STAHL AG, 3150 PEINE, DE |