WO2021096463A2 - Ceramic coating method resistant to sealing ring wear and corrosion for wheel hubs with central tire inflation function - Google Patents

Ceramic coating method resistant to sealing ring wear and corrosion for wheel hubs with central tire inflation function Download PDF

Info

Publication number
WO2021096463A2
WO2021096463A2 PCT/TR2020/051050 TR2020051050W WO2021096463A2 WO 2021096463 A2 WO2021096463 A2 WO 2021096463A2 TR 2020051050 W TR2020051050 W TR 2020051050W WO 2021096463 A2 WO2021096463 A2 WO 2021096463A2
Authority
WO
WIPO (PCT)
Prior art keywords
spindle
coating
titanium oxide
sealing ring
turning
Prior art date
Application number
PCT/TR2020/051050
Other languages
French (fr)
Other versions
WO2021096463A3 (en
Inventor
Caner BAKRAÇ
Emre DALKILIÇ
Orhan Taner GÖNÜLHAN
Original Assignee
Fnss Savunma Si̇stemleri̇ A.Ş.
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 Fnss Savunma Si̇stemleri̇ A.Ş. filed Critical Fnss Savunma Si̇stemleri̇ A.Ş.
Publication of WO2021096463A2 publication Critical patent/WO2021096463A2/en
Publication of WO2021096463A3 publication Critical patent/WO2021096463A3/en

Links

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
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • 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
    • C23C4/08—Metallic material containing only metal elements
    • 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
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/11—Oxides

Definitions

  • the present invention relates to a method for coating with aluminum oxide titanium oxide content (ceramic) that is used in order to reduce wear and to prevent the corrosion occurring on the friction surface of the sealing ring/sealing element in the wheel hub of military vehicles with central tire inflation function and implemented by thermal spraying technique.
  • ceramic aluminum oxide titanium oxide content
  • the present invention particularly relates to a ceramic coating method with aluminum oxide titanium oxide content, wherein said coating method comprises the process steps of; machining a step with a depth that is suitable forthe respective region of the spindle by means of machining technique by considering the desired coating thickness to form the coating surface, applying a nickel primer layer by means of thermal spraying technique in order to ensure that the aluminum oxide titanium oxide coating adheres to steel or cast iron spindle by connecting the spindle to a turning lathe and turning it thereon, performing a coating application of suitable thickness on the spindle by spraying a mixture of 60% AI203 (aluminum/alumina) and 40% Ti02 (titanium oxide/titania) via thermal spraying technique over the nickel primer layer while turning the spindle on the turning lathe, providing the coating surface with final dimensions by performing final polishing operation in order to obtain the measurements and surface roughness as required by the working surface of the sealing ring.
  • said coating method comprises the process steps of; machining a step with a depth that is suitable forthe respective region of the
  • pressurized air ducts located on the wheel hub require attaching an additional part, thereby bringing incremental costs and further operations along.
  • the present invention in order to overcome the aforementioned disadvantages and to bring further advantages to the related technical field, relates to an aluminum oxide titanium oxide (ceramic) coating method that utilizes the thermal spraying technique, and that is used in order to prevent corrosion from occurring in wheel hubs (due to saltwater and moisture) and to reduce the amount of wear stemming from friction and heat.
  • ceramic aluminum oxide titanium oxide
  • the most important object of the present invention is to provide high wear and corrosion resistance on the working surfaces of sealing rings for the spindle and all rotating parts.
  • Another object of the present invention is to provide high wear resistance on sealing ring surfaces of the central tire inflation systems by means of the degree of hardness of the coating.
  • Yet another object of the present invention is to avoid corrosion entirely on surfaces contacting with pressurized air on sealing ring surfaces of central tire inflation systems.
  • Another object of the present invention is to minimize the heat stemming from friction by means of the minimal surface roughness provided to sealing ring surfaces of central tire inflation systems, thereby extending the physical life of components and improving wear resistance.
  • Yet another object of the present invention is to provide extended sealing ring life and improved performance (with fewer pressurized air leaks) by means of the minimal surface roughness obtained by the inventive coating.
  • Another object of the present invention is to provide ease of assembly by means of the minimal surface roughness and to reduce assembly scrap rates. Yet another object of the present invention is to ensure that it may be utilized as a reppressurized air method for damaged spindles.
  • Another object of the present invention is to provide cost-efficiency by coating the friction surface (working surface of the sealing ring) on the spindle, thereby eliminating the necessity for further labor and additional parts since the component, as its nature dictates.
  • the inventive aluminum oxide titanium oxide ceramic thermal spray coating method comprises the process steps of; machining a step with a depth that is suitable for the respective region of the spindle by means of machining technique by considering the desired coating thickness to form the coating surface, applying a nickel primer layer by means of thermal spraying technique in order to ensure that the aluminum oxide titanium oxide coating adheres to steel or cast iron spindle by connecting the spindle to a turning lathe and turning it thereon, performing a coating application of suitable thickness on the spindle by spraying a mixture of 60% AI203 (aluminum/alumina) and 40% Ti02 (titanium oxide/titania) via thermal spraying technique over the nickel primer layer while turning the spindle on the turning lathe, providing the coating surface with final dimensions by performing a final polishing operation in order to obtain the measurements and surface roughness as required by the working surface of the sealing ring.
  • FIGURE 1 illustrates the disassembled view of the inventive wheel hub.
  • FIGURE 2 illustrates the disassembled view of the inventive wheel hub.
  • FIGURE 3 illustrates the spindle of the inventive wheel hub.
  • FIGURE 4 illustrates the sectional view of the spindle of the inventive wheel hub.
  • FIGURE 5 illustrates the detailed view of the spindle of the inventive wheel hub.
  • FIGURE 6 illustrates the sectional view of the spindle of the inventive wheel hub.
  • FIGURE 7 illustrates the sectional view of the spindle of the inventive wheel hub.
  • FIGURE 8 illustrates the assembly of the inventive wheel hub.
  • FIGURE 9 illustrates the sectional view of the assembly of the inventive wheel hub.
  • FIGURE 10 illustrates the detail A of the inventive wheel hub.
  • FIGURE 11 illustrates the detailed view of the pressurized air duct of the inventive wheel hub.
  • FIGURE 12 illustrates the detailed view of the breather duct of the inventive wheel hub.
  • inventive aluminum oxide titanium oxide ceramic coating method applied as a thermal spray to the coating surface (111) of the spindle (110) of the wheel hub (100) is described only to provide a better understanding of the subject and without constituting any limiting effects.
  • Figure 1, Figure 2, and Figure 8 illustrate the ball bearing (150) configuration and the sealing ring configuration (140) of the inventive wheel hub (100).
  • the wheel hub (100) to which the wheel of the vehicle is attached, is a component that transfers the power received from the engine to the wheels and that performs lubrication in itself, and in which the central tire inflation system is located. It comprises of two main elements which are the spindle (110) and the hub (120).
  • the spindle (110) being illustrated in Figure 3 and attached to the vehicle by means of suspension attachment lobes (114) serves as a carrier by bearing the entirety of the road and vehicle load.
  • the spindle (110) comprises; breather duct (112) that conveys the lubrication within the wheel hub (100) to corresponding parts and allows for adjusting the oil pressure, and pressurized air duct (113) that allows for adjusting the tire pressure of the vehicle based on the road, weather and terrain conditions.
  • Aluminum oxide titanium oxide ceramic thermal spray coating (130) is applied to the coating surface (111) located on the outlet of the breather duct (112), as illustrated in Figure 12, and pressurized air duct (113), as illustrated in Figure 11, on the spindle (110).
  • the ball bearing (150) allows for rotating the coating surface (111) of the hub (120) in a precise and delicate manner.
  • Aluminum oxide titanium oxide ceramic thermal spray coating (130) increases the wear and corrosion resistance of the coating surface (111).
  • the sealing ring (140) separates the lubrication of the wheel hub (100) and the central tire inflation from one another, and prevents them from mixing with one another, thereby ensuring the sealing between the spindle (110) and the hub (120).
  • the custom sealing rings (140) are exposed to friction, their surfaces that contact the spindle (110) are manufactured from a rigid material.
  • a disadvantage thereof, however, is that said sealing rings (140) induce wear and generate high heat on the coating surface (111). Worn, and heated surface corrodes due to the humidity in the pressurized air, and saltwater during amphibious use. Accordingly, this results in system malfunction since corrosion causes pressurized air and oil leaks in the system.
  • the present invention eliminates all of the aforementioned disadvantages.
  • the thrust ring (160) ensures that the sealing rings (140) are fixed; circlip (170) ensures that the thrust ring (160) and the sealing rings (140) are fixed; and the tightening nut (180) ensures that moving parts such as the sealing ring (140), a thrust ring (160), ball bearing (150) and the circlip (170) are fixed in a precise manner.
  • the inventive aluminum oxide titanium oxide ceramic thermal spray coating method comprises the process steps of; machining a step with a depth that is suitable for the respective region of the spindle (110) by means of machining technique by considering the desired coating thickness to form the coating surface (111), applying a nickel primer layer by means of thermal spraying technique in order to ensure that the aluminum oxide titanium oxide coating adheres to steel or cast iron spindle (110) by connecting the spindle (110) to a turning lathe and turning it thereon, - performing a coating application of suitable thickness on the spindle (110) by spraying a mixture of 60% AI203 (aluminum/alumina) and 40% Ti02 (titanium oxide/titania) via thermal spraying technique over the nickel primer layer while turning the spindle on the turning lathe, providing the coating surface (111) with final dimensions by performing a final polishing operation in order to obtain the measurements and surface roughness as required by the working surface of the sealing ring.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

The present invention relates to a method for ceramic coating with aluminum oxide titanium oxide content that is applied by means of thermal spraying method, and that is used in order to reduce the wear that occurs on the friction surface of the central tire inflation sealing ring (140) in the wheel hub (100) of military vehicles with central tire inflation function and to prevent corrosion stemming from external factors (friction heat, moisture, saltwater contact) from occurring therein. The present invention particularly relates to a ceramic coating method with aluminum oxide titanium oxide content, wherein said coating method comprises the process steps of; machining a step with a depth that is suitable for the respective region of the spindle (110) by means of machining technique by considering the desired coating thickness to form the coating surface (111), applying a nickel primer layer by means of thermal spraying technique in order to ensure that the aluminum oxide titanium oxide coating adheres to steel or cast iron spindle (110) by connecting the spindle (110) to a turning lathe and turning it thereon, performing a coating application of suitable thickness on the spindle (110) by spraying a mixture of 60% Al2O3 (aluminum/alumina) and 40% TiO2 (titanium oxide/titania) via thermal spraying technique over the nickel primer layer while turning the spindle on the turning lathe, providing the coating surface (111) with final dimensions by performing final polishing operation in order to obtain the measurements and surface roughness as required by the working surface of the sealing ring.

Description

DESCRIPTION
CERAMIC COATING METHOD RESISTANT TO SEALING RING WEAR AND CORROSION FOR WHEEL HUBS WITH CENTRAL TIRE INFLATION FUNCTION
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for coating with aluminum oxide titanium oxide content (ceramic) that is used in order to reduce wear and to prevent the corrosion occurring on the friction surface of the sealing ring/sealing element in the wheel hub of military vehicles with central tire inflation function and implemented by thermal spraying technique.
The present invention particularly relates to a ceramic coating method with aluminum oxide titanium oxide content, wherein said coating method comprises the process steps of; machining a step with a depth that is suitable forthe respective region of the spindle by means of machining technique by considering the desired coating thickness to form the coating surface, applying a nickel primer layer by means of thermal spraying technique in order to ensure that the aluminum oxide titanium oxide coating adheres to steel or cast iron spindle by connecting the spindle to a turning lathe and turning it thereon, performing a coating application of suitable thickness on the spindle by spraying a mixture of 60% AI203 (aluminum/alumina) and 40% Ti02 (titanium oxide/titania) via thermal spraying technique over the nickel primer layer while turning the spindle on the turning lathe, providing the coating surface with final dimensions by performing final polishing operation in order to obtain the measurements and surface roughness as required by the working surface of the sealing ring.
STATE OF THE ART
Military systems go through major developments in parallel with the development of technology. The main reason underlying these developments is to intention to render military vehicles faster, more comfortable, more practical, and safer. As per their structural characteristics, military vehicles are generally heavy and subject to intense vibration profiles. Quite naturally, loads imposed on the wheels of these vehicles due to both terrain conditions and the weight of the vehicle may be significantly higher when compared to a conventional vehicle. Furthermore, certain moving parts of amphibious vehicle models are directly exposed to saltwater and moisture. Therefore, wheel hubs, being under intense vibration and significant weight, should be able to endure such conditions for as long as possible. Thus, wheel hubs of such vehicles are under constant development.
In the state of the art, products that are used either as they have come out of the machining process or after being ground following machining operation usually suffer from rapid wear and excessive corrosion on the working surface of the sealing ring made of uncoated steel and/or cast iron. Correspondingly, sealing rings of central tire inflation systems sustain damage due to corrosion-induced rough surfaces, thereby causing loss of sealing function in the product.
In the state of the art, although the intensity and rate of corrosion have been reduced in products subjected to hard chromium plating following the machining process, these products still suffer from wears that may potentially cause function loss on the surface in medium-term uses. Considering the operational difficulties and the respective costs of the application, it is considered that chromium plating is not an effective solution.
In the state of the art pressurized air ducts located on the wheel hub require attaching an additional part, thereby bringing incremental costs and further operations along.
Consequently, the need for a novel, economic, practical, and wear-resistant aluminum oxide titanium oxide (ceramic) coating method, as well as the insufficiency of available solutions, necessitated making an improvement in the relevant technical field in order to provide a solution for the aforementioned problems existing in the state of the art. OBJECTS OF THE INVENTION
The present invention, in order to overcome the aforementioned disadvantages and to bring further advantages to the related technical field, relates to an aluminum oxide titanium oxide (ceramic) coating method that utilizes the thermal spraying technique, and that is used in order to prevent corrosion from occurring in wheel hubs (due to saltwater and moisture) and to reduce the amount of wear stemming from friction and heat.
The most important object of the present invention is to provide high wear and corrosion resistance on the working surfaces of sealing rings for the spindle and all rotating parts.
Another object of the present invention is to provide high wear resistance on sealing ring surfaces of the central tire inflation systems by means of the degree of hardness of the coating.
Yet another object of the present invention is to avoid corrosion entirely on surfaces contacting with pressurized air on sealing ring surfaces of central tire inflation systems.
Another object of the present invention is to minimize the heat stemming from friction by means of the minimal surface roughness provided to sealing ring surfaces of central tire inflation systems, thereby extending the physical life of components and improving wear resistance.
Yet another object of the present invention is to provide extended sealing ring life and improved performance (with fewer pressurized air leaks) by means of the minimal surface roughness obtained by the inventive coating.
Another object of the present invention is to provide ease of assembly by means of the minimal surface roughness and to reduce assembly scrap rates. Yet another object of the present invention is to ensure that it may be utilized as a reppressurized air method for damaged spindles.
Another object of the present invention is to provide cost-efficiency by coating the friction surface (working surface of the sealing ring) on the spindle, thereby eliminating the necessity for further labor and additional parts since the component, as its nature dictates.
The inventive aluminum oxide titanium oxide ceramic thermal spray coating method comprises the process steps of; machining a step with a depth that is suitable for the respective region of the spindle by means of machining technique by considering the desired coating thickness to form the coating surface, applying a nickel primer layer by means of thermal spraying technique in order to ensure that the aluminum oxide titanium oxide coating adheres to steel or cast iron spindle by connecting the spindle to a turning lathe and turning it thereon, performing a coating application of suitable thickness on the spindle by spraying a mixture of 60% AI203 (aluminum/alumina) and 40% Ti02 (titanium oxide/titania) via thermal spraying technique over the nickel primer layer while turning the spindle on the turning lathe, providing the coating surface with final dimensions by performing a final polishing operation in order to obtain the measurements and surface roughness as required by the working surface of the sealing ring.
Structural and characteristic features of the present invention, as well as all advantages thereof, will become apparent through the figures described below and by means of the detailed description written by making references to these figures, therefore, the necessary evaluation should be conducted by taking said figures and the detailed description into consideration. DESCRIPTION OF THE FIGURES
FIGURE 1 illustrates the disassembled view of the inventive wheel hub.
FIGURE 2 illustrates the disassembled view of the inventive wheel hub.
FIGURE 3 illustrates the spindle of the inventive wheel hub. FIGURE 4 illustrates the sectional view of the spindle of the inventive wheel hub.
FIGURE 5 illustrates the detailed view of the spindle of the inventive wheel hub.
FIGURE 6 illustrates the sectional view of the spindle of the inventive wheel hub.
FIGURE 7 illustrates the sectional view of the spindle of the inventive wheel hub.
FIGURE 8 illustrates the assembly of the inventive wheel hub. FIGURE 9 illustrates the sectional view of the assembly of the inventive wheel hub.
FIGURE 10 illustrates the detail A of the inventive wheel hub.
FIGURE 11 illustrates the detailed view of the pressurized air duct of the inventive wheel hub.
FIGURE 12 illustrates the detailed view of the breather duct of the inventive wheel hub.
REFERENCE NUMERALS
100. Wheel Hub
110. Spindle
111. Coating Surface 112. Breather duct 113. Pressurized air Duct
114. Suspension Attachment Lobes
120. Hub
130. Coating
140. Sealing Ring
150. Ball Bearing
160. Thrust Ring
170. Circlip
180. Tightening Nut
DETAILED DESCRIPTION OF THE INVENTION
In the detailed description provided herein, the inventive aluminum oxide titanium oxide ceramic coating method applied as a thermal spray to the coating surface (111) of the spindle (110) of the wheel hub (100) is described only to provide a better understanding of the subject and without constituting any limiting effects.
Figure 1, Figure 2, and Figure 8 illustrate the ball bearing (150) configuration and the sealing ring configuration (140) of the inventive wheel hub (100). The wheel hub (100), to which the wheel of the vehicle is attached, is a component that transfers the power received from the engine to the wheels and that performs lubrication in itself, and in which the central tire inflation system is located. It comprises of two main elements which are the spindle (110) and the hub (120). The spindle (110) being illustrated in Figure 3 and attached to the vehicle by means of suspension attachment lobes (114) serves as a carrier by bearing the entirety of the road and vehicle load. As illustrated in Figure 5, Figure 6, and Figure 7, the spindle (110) comprises; breather duct (112) that conveys the lubrication within the wheel hub (100) to corresponding parts and allows for adjusting the oil pressure, and pressurized air duct (113) that allows for adjusting the tire pressure of the vehicle based on the road, weather and terrain conditions. Aluminum oxide titanium oxide ceramic thermal spray coating (130) is applied to the coating surface (111) located on the outlet of the breather duct (112), as illustrated in Figure 12, and pressurized air duct (113), as illustrated in Figure 11, on the spindle (110). The hub (120) functioning on the coating surface (111) of the spindle (110), as illustrated in Figure 4, along with the moving elements such as the sealing ring (140), a thrust ring (160), ball bearing (150) and circlip (170), guides the pressurized air received from the pressurized air duct (113) within the spindle (110) to the wheel. The ball bearing (150) allows for rotating the coating surface (111) of the hub (120) in a precise and delicate manner. Aluminum oxide titanium oxide ceramic thermal spray coating (130) increases the wear and corrosion resistance of the coating surface (111).
In the present invention, as illustrated in Figure 9 and Figure 10, the sealing ring (140) separates the lubrication of the wheel hub (100) and the central tire inflation from one another, and prevents them from mixing with one another, thereby ensuring the sealing between the spindle (110) and the hub (120). As the custom sealing rings (140) are exposed to friction, their surfaces that contact the spindle (110) are manufactured from a rigid material. A disadvantage thereof, however, is that said sealing rings (140) induce wear and generate high heat on the coating surface (111). Worn, and heated surface corrodes due to the humidity in the pressurized air, and saltwater during amphibious use. Accordingly, this results in system malfunction since corrosion causes pressurized air and oil leaks in the system. The present invention eliminates all of the aforementioned disadvantages.
In the present invention, the thrust ring (160) ensures that the sealing rings (140) are fixed; circlip (170) ensures that the thrust ring (160) and the sealing rings (140) are fixed; and the tightening nut (180) ensures that moving parts such as the sealing ring (140), a thrust ring (160), ball bearing (150) and the circlip (170) are fixed in a precise manner. In the present invention, the inventive aluminum oxide titanium oxide ceramic thermal spray coating method comprises the process steps of; machining a step with a depth that is suitable for the respective region of the spindle (110) by means of machining technique by considering the desired coating thickness to form the coating surface (111), applying a nickel primer layer by means of thermal spraying technique in order to ensure that the aluminum oxide titanium oxide coating adheres to steel or cast iron spindle (110) by connecting the spindle (110) to a turning lathe and turning it thereon, - performing a coating application of suitable thickness on the spindle (110) by spraying a mixture of 60% AI203 (aluminum/alumina) and 40% Ti02 (titanium oxide/titania) via thermal spraying technique over the nickel primer layer while turning the spindle on the turning lathe, providing the coating surface (111) with final dimensions by performing a final polishing operation in order to obtain the measurements and surface roughness as required by the working surface of the sealing ring.
The protection scope of this application is defined in the pending patent claims, and under no circumstances may it be construed to be limited with the detailed description provided above for illustration purposes, moreover, it is obvious that a person skilled in the art may set forth the novelty of the present invention by taking advantage of similar embodiments and/or implement this embodiment in the fields with similar purposes used in the relevant art. Therefore, it is apparent that such embodiments will lack the novelty criteria, and particularly the criteria of surpassing the state of the art.

Claims

1- A method for ceramic coating with aluminum oxide titanium oxide content that is applied by means of thermal spraying method, and that is used in order to reduce the wear that occurs on the friction surface of the central tire inflation sealing ring (140) in the wheel hub (100) of military vehicles with central tire inflation function and to prevent corrosion stemming from external factors (friction heat, moisture, saltwater contact) from occurring therein; characterized by comprising the process steps of; machining a step with a depth that is suitable for the respective region of the spindle (110) by means of machining technique by considering the desired coating thickness to form the coating surface (111), applying a nickel primer layer by means of thermal spraying technique in order to ensure that the aluminum oxide titanium oxide coating adheres to steel or cast iron spindle (110) by connecting the spindle (110) to a turning lathe and turning it thereon, performing a coating application of suitable thickness on the spindle (110) by spraying a mixture of 60% AI203 (aluminum/alumina) and 40% Ti02 (titanium oxide/titania) via thermal spraying technique over the nickel primer layer while turning the spindle on the turning lathe, providing the coating surface (111) with final dimensions by performing a final polishing operation in order to obtain the measurements and surface roughness as required by the working surface of the sealing ring.
PCT/TR2020/051050 2019-11-13 2020-11-05 Ceramic coating method resistant to sealing ring wear and corrosion for wheel hubs with central tire inflation function WO2021096463A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201917665 2019-11-13
TR2019/17665 2019-11-13

Publications (2)

Publication Number Publication Date
WO2021096463A2 true WO2021096463A2 (en) 2021-05-20
WO2021096463A3 WO2021096463A3 (en) 2021-10-14

Family

ID=75912131

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2020/051050 WO2021096463A2 (en) 2019-11-13 2020-11-05 Ceramic coating method resistant to sealing ring wear and corrosion for wheel hubs with central tire inflation function

Country Status (1)

Country Link
WO (1) WO2021096463A2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0693406A (en) * 1992-09-11 1994-04-05 Bridgestone Corp Flame retardant material
JPH0692101A (en) * 1992-09-11 1994-04-05 Bridgestone Corp Resin wheel
AU709965B2 (en) * 1994-10-21 1999-09-09 Elisha Holding Llc Corrosion preventing buffersystem for metal products
EP3285935B1 (en) * 2015-04-24 2021-07-07 Carbon Revolution Limited Method of producing thermally protected composite

Also Published As

Publication number Publication date
WO2021096463A3 (en) 2021-10-14

Similar Documents

Publication Publication Date Title
US10274032B2 (en) Process for producing a brake disk and brake disk
US9394955B2 (en) Brake disk
CA2957982C (en) Improved torque plate for heavy-duty vehicles
US20040142109A1 (en) Coated vehicle wheel and method
US4575145A (en) Differential axle for railroad car
WO2008145215A1 (en) Sheet metal shield and a wheel end assembly provided therewith
KR101863471B1 (en) Railway vehicle wheel with brake discs
US3997217A (en) Machine or vehicle component and reinforcement element
US20230018275A1 (en) Braking band of a disk for disk brake
DE102015204813B4 (en) Method for producing a brake disk and brake disk
WO2021096463A2 (en) Ceramic coating method resistant to sealing ring wear and corrosion for wheel hubs with central tire inflation function
CA2952860C (en) Reduced-diameter brake rotor for heavy-duty vehicles
WO2017083273A1 (en) Thermal coating for mechanical seals
US20160076128A1 (en) Thermal Spray Coating for Mechanical Face Seals
CN207607301U (en) A kind of surface spraying has the alloy wheel of ceramic composite coating
EP1386094B2 (en) Disk brake for a heavy truck and a vehicle including such a disc brake
AU659785B2 (en) Prestressed brake drum or rotor
CN106334714A (en) Finishing mill high-temperature abrasion-resistant alloy guide roller and manufacture method thereof
WO2016080537A1 (en) Disc brake device for vehicle
CN206717681U (en) One kind processing automobile engine crankshaft special grinding wheel
CN207093578U (en) A kind of spherical joint bearing inner race of surface with hard coat
RU2302901C1 (en) Rubberized disk for bead mill
WO2009146722A1 (en) Wheel end
CN108202557A (en) A kind of surface spraying has the alloy wheel of ceramic composite coating
EP2985221B1 (en) Compliant lower bearing with tapered outer surface

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20888020

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20888020

Country of ref document: EP

Kind code of ref document: A2