EP1354983A1 - Procédé pour déposer à basse température des revêtements sur des matériaux - Google Patents

Procédé pour déposer à basse température des revêtements sur des matériaux Download PDF

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Publication number
EP1354983A1
EP1354983A1 EP03090099A EP03090099A EP1354983A1 EP 1354983 A1 EP1354983 A1 EP 1354983A1 EP 03090099 A EP03090099 A EP 03090099A EP 03090099 A EP03090099 A EP 03090099A EP 1354983 A1 EP1354983 A1 EP 1354983A1
Authority
EP
European Patent Office
Prior art keywords
coating
metallic particles
gas stream
carrier gas
metallic
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.)
Withdrawn
Application number
EP03090099A
Other languages
German (de)
English (en)
Inventor
Gerard Dipl.-Ing. Pieper
Klaus Dipl.-Ing. Rieck
Sigurd Dipl.-Ing. Ruhland
Lutz Dipl.-Ing. Siedentopf
Maik Dipl.-Ing. Nicklisch
Dieter Dipl.-Phys. Päthe
Kurt Dipl.-Ing. Ströer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GP Innovationsgesellschaft mbH
Volkswagen AG
Original Assignee
GP Innovationsgesellschaft mbH
Volkswagen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GP Innovationsgesellschaft mbH, Volkswagen AG filed Critical GP Innovationsgesellschaft mbH
Publication of EP1354983A1 publication Critical patent/EP1354983A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/02—Coating starting from inorganic powder by application of pressure only
    • C23C24/04—Impact or kinetic deposition of particles
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/02—Coating starting from inorganic powder by application of pressure only
    • C23C24/04—Impact or kinetic deposition of particles
    • C23C24/045—Impact or kinetic deposition of particles by trembling using impacting inert media

Definitions

  • the invention relates to a method for coating a Coating surface of solids, for example metallic surfaces such as body panels, clearly below the liquidus temperature of coating agent and Low temperature substrate.
  • spray layers have a lamellar structure, which is also caused by the surface oxidation of the highly heated metallic spray particles on their way from the spray gun to the substrate surface.
  • This lamellar structure is one of the reasons for the increase in layer hardness and wear resistance, but also for the decrease in corrosion resistance.
  • a change in the composition for example by selective evaporation of a component, cannot be ruled out.
  • These processes also require complex plant technology such as encapsulated spray rooms or booths, suction devices with filters in order to keep the impact on the environment as low as possible.
  • EP 0 275 083 B1 describes a method for metal spray coating a substrate like steel in Low temperature range known in which a not pretreated substrate before spraying it with metal coated with a resin layer and then a metal by an arc spray machine onto the resin layer is sprayed on.
  • the zinc layer produced with this proposed method according to DE 101 02 924 builds up due to the impact of individual zinc particles on a pre-compressed substrate surface, the zinc particles deforming due to their high kinetic energy upon impact on the substrate surface and mechanically clinging to it.
  • the energy released in the event of an impact leads to a temporary increase in temperature at the boundary between particle and substrate, which increases the adhesion of the particles to the substrate. Nevertheless, it was found that the adhesive forces of such zinc layers are not sufficiently high.
  • the object of the invention based, uniformly homogeneous and dense Corrosion protection layers on solids in particular without Reworking with low energy consumption, high flexibility and environmentally friendly recovery and reuse of the Blasting media economically in the low temperature range produce.
  • the method according to the invention is characterized above all by this from that the metal particles on a metallic substrate a uniformly dense and homogeneous corrosion protection layer in the Form low temperature area without any after-treatment necessary is.
  • the spreading on the substrate surface Metal particles are particularly impacted by the Impact body deformed into a homogeneous protective layer and condensed at the same time.
  • the improvement achieved in the Adhesion is due to a more intense mechanical Stapling, adhesion, diffusion and electrostatic forces due.
  • the when the metal particles and the Impact energy released leads to a temporary Temperature increase, causing the adherence of the Metal particles on the substrate surface further improved becomes.
  • the method according to the invention works in a vacuum suction flow, so that all material flows are circulated and the blasting media can be recovered inexpensively without getting into the environment. Elaborate and energy-intensive spray booths are completely eliminated.
  • the process is simple, location-independent and economical due to its low energy consumption. Due to the negative pressure applied to the blasting chamber in connection with an additional energy pulse acting on the coating agent, it is possible within a wide range to adapt the method according to the invention to different coating tasks.
  • the method according to the invention is therefore particularly well suited for the application of protective zinc layers on thin steel sheets, in particular body panel parts.
  • the single figure shows a basic functional diagram of the method according to the invention for coating a horizontally lying, flat metallic body sheet 1 with an approximately 10 ⁇ m thick largely homogeneous zinc layer.
  • Zinc powder with a grain size between 3 ⁇ m and 10 ⁇ m is used as the metallic coating agent and glass balls with a diameter of 100 ⁇ m to 200 ⁇ m are used as impact agents, the hardness of which is significantly higher than the hardness of the metallic zinc.
  • the abrasive mixture 2 is composed of 1 part zinc powder and 4 parts glass balls.
  • the loading of the air volume flow with the blasting agent mixture 2 is about 100 g / m 3 , the blasting speeds reach about 120 to 160 m / s.
  • an air flow 4 with an air output of 100 m 3 / h to 120 m 3 / h is generated.
  • the suction nozzle 5 of the suction unit 3 is connected via a separator 6 to a hose line 7 , which leads to a blasting chamber 8 .
  • a vacuum of approximately 510 mbar is generated with the suction unit 3 .
  • In the container 9 there are two hoppers, not shown, arranged vertically one above the other, which are pneumatically separated from one another.
  • the blasting agent mixture 2 passes through gravity via the bulk hopper into and from there into a metering device 10 which leads into a mixing chamber 11 which is connected to a blasting lance 13 via a hose feed line 12 .
  • the mixing ratio of zinc powder and glass balls in the blasting agent mixture which is located in the metering device 10 , is set in the mixing chamber 11 and mixed with the inflowing air.
  • the blasting agent-zinc powder / air mixture is sucked in by the negative pressure present, flows through the hose line 12 to the blasting lance 13 leading into the blasting chamber 8 , where the blasting agent-zinc powder / air mixture is brought to the named speeds by supply air.
  • the blasting agent-zinc powder / air mixture hits the surface to be coated in the blasting chamber 8 .
  • the blasting agent-zinc powder mixture is fed through the hose line 7 to the separator or cyclone 6 , in which the zinc powder is separated with the glass balls. It is of course also possible to meter in the zinc powder separately instead of loading the air stream with blasting agent and zinc powder. This type of metering is particularly suitable for the circulatory procedure.
  • the impacting zinc particles form a coherent, largely homogeneous zinc layer on the surface of the surface of the body panel 1 to be coated.
  • the quality of the zinc layer is essentially a function of the thermal and kinetic energy of the particles.
  • the zinc particles first cling to the surface of the body panel 1 .
  • the vitreous bodies striking the clawed zinc particles deform and compact the zinc particles into a coherent, dense and homogeneous layer.
  • the layer thickness of 10 ⁇ m achieved in this example has firm adhesion even after bending tests, is practically non-porous and has no cracks. It is metallically homogeneous.
  • the surface to be coated can be pre-blasted with broken glass, slag or corundum. Roughnesses of R a 4 ⁇ m and R z 14 ⁇ m have proven favorable for the adhesion.
  • the grain size of the impact material is preferably in the range between 80 ⁇ m and 300 ⁇ m.
  • the vacuum of the blasting process of the pretreatment is advantageously between 50 and 600 mbar and the air volume between 50 and 5000 m 3 / h.
  • the field of application of the method according to the invention is of course not only limited to the galvanizing of body surfaces. Rather, the described method is also suitable for the coating of solid bodies with metallic particles that have curved surfaces.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP03090099A 2002-04-08 2003-04-07 Procédé pour déposer à basse température des revêtements sur des matériaux Withdrawn EP1354983A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002116294 DE10216294B4 (de) 2002-04-08 2002-04-08 Verfahren zum Beschichten von Festkörpern im Niedrigtemperaturbereich
DE10216294 2002-04-08

Publications (1)

Publication Number Publication Date
EP1354983A1 true EP1354983A1 (fr) 2003-10-22

Family

ID=28458773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03090099A Withdrawn EP1354983A1 (fr) 2002-04-08 2003-04-07 Procédé pour déposer à basse température des revêtements sur des matériaux

Country Status (3)

Country Link
EP (1) EP1354983A1 (fr)
CN (1) CN100384540C (fr)
DE (1) DE10216294B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3885052B1 (fr) 2020-03-24 2022-11-30 Akzenta Paneele + Profile GmbH Revêtement de bord d'un panneau au moyen d'un revêtement

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005027782A1 (de) * 2005-06-15 2006-12-28 Druckguss Heidenau Gmbh Verfahren zur Oberflächenbehandlung von Magnesiumgussteilen
DE102012106078A1 (de) 2012-07-06 2014-05-08 Reinhausen Plasma Gmbh Beschichtungsvorrichtung und Verfahren zur Beschichtung eines Substrats
CN104894554B (zh) * 2015-04-10 2018-10-30 西安交通大学 一种高致密度冷喷涂金属/金属基沉积体的制备方法和应用
DE102015013167B4 (de) 2015-10-09 2018-05-03 Audi Ag Verfahren zum Bearbeiten von glänzenden Lackoberflächen
CN107858629B (zh) * 2017-05-02 2020-03-17 武汉华工激光工程有限责任公司 一种利用陶瓷材料密封热喷涂陶瓷涂层孔隙工艺
CN108500275B (zh) * 2018-04-18 2019-11-26 西安交通大学 一种高致密度与低残余应力的零件增材制造设备及方法
CN109226745A (zh) * 2018-09-06 2019-01-18 中国科学院金属研究所 一种提高冷喷涂制备铝合金块体材料力学性能的方法
CN114250459A (zh) * 2021-12-23 2022-03-29 浙江工业大学 一种超音速激光沉积微喷丸的方法及喷涂装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754976A (en) * 1971-12-06 1973-08-28 Nasa Peen plating
US6291012B1 (en) * 1997-02-04 2001-09-18 Fuji Kihan Co., Ltd. Method for forming a metallic coat by impacting metallic particles on a workpiece
EP1152067A1 (fr) * 2000-05-02 2001-11-07 The Boc Group, Inc. Projection gazodynamique à froid
WO2002058887A1 (fr) * 2001-01-23 2002-08-01 Pieper Innovationsgesellschaft Mbh Procede et dispositif pour le sablage, notamment l'enlevement et/ou le compactage et/ou l'enduction de surfaces fixes, avec un suivi precis de leur forme

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1521359A1 (de) * 1965-10-01 1969-07-24 Licentia Gmbh Verfahren zur Herstellung einer Schutzschicht auf der Oberflaeche von metallischen Werkstoffen,durch mechanisches Bestrahlen
JPS6138870A (ja) * 1984-07-30 1986-02-24 Dowa Teppun Kogyo Kk メカニカルプレ−テイング用混合粉体およびこれを使用した連続メカニカルプレ−テイング法
US5494520A (en) * 1994-10-07 1996-02-27 Xerox Corporation Apparatus for coating jet milled particulates onto a substrate by use of a rotatable applicator
DE19614555C2 (de) * 1996-04-12 1998-11-26 Guenther Boehler Gmbh Vorrichtung zum abrasiven Strahlen von Werkstücken
DE19918758B4 (de) * 1999-04-24 2007-04-26 Volkswagen Ag Verfahren zur Erzeugung einer Beschichtung, insbesondere Korrosionsschutzschicht

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754976A (en) * 1971-12-06 1973-08-28 Nasa Peen plating
US6291012B1 (en) * 1997-02-04 2001-09-18 Fuji Kihan Co., Ltd. Method for forming a metallic coat by impacting metallic particles on a workpiece
EP1152067A1 (fr) * 2000-05-02 2001-11-07 The Boc Group, Inc. Projection gazodynamique à froid
WO2002058887A1 (fr) * 2001-01-23 2002-08-01 Pieper Innovationsgesellschaft Mbh Procede et dispositif pour le sablage, notamment l'enlevement et/ou le compactage et/ou l'enduction de surfaces fixes, avec un suivi precis de leur forme

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3885052B1 (fr) 2020-03-24 2022-11-30 Akzenta Paneele + Profile GmbH Revêtement de bord d'un panneau au moyen d'un revêtement

Also Published As

Publication number Publication date
CN1449870A (zh) 2003-10-22
DE10216294A1 (de) 2003-10-23
DE10216294B4 (de) 2008-04-03
CN100384540C (zh) 2008-04-30

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