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
  • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
  • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
  • C23C4/06—Metallic material
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B7/00—Switches; Crossings
  • E01B7/02—Tongues; Associated constructions
• • 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
  • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
  • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
  • C23C4/06—Metallic material
  • C23C4/067—Metallic material containing free particles of non-metal elements, e.g. carbon, silicon, boron, phosphorus or arsenic
• • 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
  • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
  • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
  • C23C4/131—Wire arc spraying
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B2202/00—Characteristics of moving parts of rail systems, e.g. switches, special frogs, tongues
  • E01B2202/04—Nature of the support or bearing
  • E01B2202/042—Sliding
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B2202/00—Characteristics of moving parts of rail systems, e.g. switches, special frogs, tongues
  • E01B2202/04—Nature of the support or bearing
  • E01B2202/06—Use of friction-reducing surfaces
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/12—All metal or with adjacent metals
  • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
  • Y10T428/12736—Al-base component
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/12—All metal or with adjacent metals
  • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
  • Y10T428/12736—Al-base component
  • Y10T428/1275—Next to Group VIII or IB metal-base component
  • Y10T428/12757—Fe
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/12—All metal or with adjacent metals
  • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
  • Y10T428/12771—Transition metal-base component
  • Y10T428/12861—Group VIII or IB metal-base component
  • Y10T428/12951—Fe-base component
  • Y10T428/12972—Containing 0.01-1.7% carbon [i.e., steel]
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31678—Of metal

Definitions

• the invention relates to a method for coating a surface of a track component with an aluminum-containing layer by means of arc spraying.
• the invention also relates to a track component such as a switch component with a layer containing aluminum applied by arc spraying.
• a sliding chair in which a lubricant is applied by plasma or flame spraying processes, which contains molybdenum or ternary or quaternary alloys based on Co or Ni, optionally with additives such as Mo, Cr and / or Si ,
• a profile rail for a monorail with a running surface which is horizontal in cross section and onto which a metal coating is applied by flame spraying or arc spraying can be found in DE 38 41 044 C2.
• the metal covering consists of an adhesive layer and a wear layer that contains 10% to 25% chromium.
• the adhesive layer itself is preferably composed of 60% to 90% nickel and 10% to 40% aluminum.
• the thickness of the metal covering can be between 0.3 mm and 5 mm.
• a disadvantage of a corresponding metal coating applied by arc spraying is that it has a two-layer design, the sliding and abrasion wear not being significantly increased in comparison to those layers of molybdenum which are applied by flame spraying but are single-layered.
• the present invention is based on the problem of developing a method for coating a surface of a track component and such itself in such a way that a layer which has a high resistance to sliding and abrasion wear and, in particular, a high level of corrosion resistance can be formed in a simple manner in terms of production technology against atmospheric electrolytes such as B. shows salt water or deicing agent. Good adhesive strength should also be provided.
• the problem is essentially solved by a method of the type mentioned at the outset in that aluminum and silicon are applied to the surface in a ratio of 3: 2 ⁇ AI: Si ⁇ 4: 1 by arc spraying.
• aluminum to silicon is applied in a ratio of 3: 1.
• the thickness of the layer consisting or containing aluminum and silicon should be between 0.2 mm and 2 mm, in particular in the range between 0.8 mm and 1.5 mm. Good adhesive strength has been shown when the layer is applied to a high-strength steel such as St 52.
• the layer thicknesses are only between 0.8 mm and 1.5 mm.
• a track component such as a switch component or switch closure parts with a layer containing aluminum applied by arc spraying is characterized in that the layer consists of or contains aluminum and silicon with a ratio of 3: 2 ⁇ AI: Si ⁇ 4: 1, in particular aluminum to silicon behaves like 3: 1.
• a sheathed wire with a casing made of aluminum and powdered silicon absorbed by it is preferably used as a spray wire for the arc spraying.
• the melted aluminum and silicon should also be applied to the surface at a delivery pressure of 2 to 4 bar above atmospheric pressure in order to achieve the desired adhesion.
• the layer should be applied to the surface with a thickness d of 0.2 mm ⁇ d ⁇ 2 mm, preferably 0.8 mm ⁇ d ⁇ 1.5 mm.
• the sheath wire as the spray wire is with a wire feed V at 1 m / sec. ⁇ V ⁇ 15 m / sec, preferably 6 m / sec. ⁇ V ⁇ 8 m / sec, conveyed to the arc, a voltage difference U of 30 V ⁇ U ⁇ 50 V, in particular U «40 V, should be set between the spray wires.
• a current I with 200 A ⁇ I ⁇ 600 A, in particular 250 A ⁇ I ⁇ 500 A, should flow between the spray wires.
• FIG. 1 a basic illustration of a device for applying a spray layer on a track part in the form of a sliding chair 10 is shown.
• a device 12 is aligned with the sliding chair 10, in which spray wires 18, 20 are brought together with respect to the sliding chair 10 via wire feed devices 14, 16. Since there is a voltage V between 30 V and 50 V, in particular approximately 40 V, between the spray wires 18, 20, an arc 22 can form between the spray wires 18 and 20 in order to melt the arc material.
• the spray wires 18, 20 are sheathed wires with an aluminum sheath that receives powdered silicon.
• the ratio of aluminum to silicon is set such that the spray jet 26 has a composition of aluminum to silicon in a ratio between 3: 2 and 4: 1, in particular 3: 1.
• the jacket wires or spray wires 18, 20 are fed via the feed device 14, 16 at a speed of in particular 30 mm / sec ⁇ V ⁇ 100 mm / sec. promoted to arc 22.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Mechanical Engineering (AREA)
• Plasma & Fusion (AREA)
• Physics & Mathematics (AREA)
• Organic Chemistry (AREA)
• Materials Engineering (AREA)
• Metallurgy (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Coating By Spraying Or Casting (AREA)
• Application Of Or Painting With Fluid Materials (AREA)
• Other Surface Treatments For Metallic Materials (AREA)
• Road Repair (AREA)
• Machines For Laying And Maintaining Railways (AREA)
• Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Applications Claiming Priority (5)

Publications (2)

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ID=30001484

Family Applications (1)

Country Status (20)

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• 2003
  • 2003-02-12 DE DE2003113957 patent/DE10313957A1/de not_active Withdrawn
  • 2003-06-26 AT AT03761530T patent/ATE309411T1/de active
  • 2003-06-26 EP EP03761530A patent/EP1516092B1/fr not_active Expired - Lifetime
  • 2003-06-26 KR KR1020047021049A patent/KR100666293B1/ko not_active Expired - Fee Related
  • 2003-06-26 RU RU2004139124A patent/RU2282692C2/ru active
  • 2003-06-26 BR BR0312231A patent/BR0312231B1/pt not_active IP Right Cessation
  • 2003-06-26 HR HR20050086A patent/HRP20050086A2/hr not_active Application Discontinuation
  • 2003-06-26 DE DE50301632T patent/DE50301632D1/de not_active Expired - Lifetime
  • 2003-06-26 CA CA002486411A patent/CA2486411C/fr not_active Expired - Fee Related
  • 2003-06-26 US US10/514,242 patent/US7056596B2/en not_active Expired - Lifetime
  • 2003-06-26 AU AU2003246599A patent/AU2003246599B2/en not_active Ceased
  • 2003-06-26 MX MXPA04012422A patent/MXPA04012422A/es active IP Right Grant
  • 2003-06-26 ES ES03761530T patent/ES2252691T3/es not_active Expired - Lifetime
  • 2003-06-26 DK DK03761530T patent/DK1516092T3/da active
  • 2003-06-26 CN CNB038151774A patent/CN100343450C/zh not_active Expired - Fee Related
  • 2003-06-26 PL PL373131A patent/PL206423B1/pl unknown
  • 2003-06-26 WO PCT/EP2003/006782 patent/WO2004003296A1/fr not_active Ceased
  • 2003-06-26 JP JP2004516707A patent/JP4523840B2/ja not_active Expired - Fee Related
  • 2003-06-27 TW TW92117575A patent/TWI245081B/zh not_active IP Right Cessation
• 2005
  • 2005-01-26 ZA ZA200500764A patent/ZA200500764B/xx unknown
  • 2005-01-26 NO NO20050432A patent/NO336625B1/no not_active IP Right Cessation

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