US3144349A - Removable protective coating for articles of manufacture, such as aeronautical propeller blades - Google Patents

Removable protective coating for articles of manufacture, such as aeronautical propeller blades Download PDF

Info

Publication number
US3144349A
US3144349A US15425A US1542560A US3144349A US 3144349 A US3144349 A US 3144349A US 15425 A US15425 A US 15425A US 1542560 A US1542560 A US 1542560A US 3144349 A US3144349 A US 3144349A
Authority
US
United States
Prior art keywords
layer
resin
coating
propeller
metal
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 - Lifetime
Application number
US15425A
Other languages
English (en)
Inventor
Ralph F N Swingler
Teague Ernest Douglas
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3144349A publication Critical patent/US3144349A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C3/00—Wings
    • B64C3/26—Construction, shape, or attachment of separate skins, e.g. panels
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/16—Blades
    • B64C11/20—Constructional features
    • B64C11/205—Constructional features for protecting blades, e.g. coating
    • 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
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • 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
    • 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
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/08—Flame spraying
    • B05D1/10—Applying particulate materials
    • 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
    • B05D2350/00—Pretreatment of the substrate
    • B05D2350/20—Chromatation
    • 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
    • B05D2504/00—Epoxy polymers
    • 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
    • B05D3/0254—After-treatment
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension

Definitions

  • This invention relates to articles of manufacture having a protective coating and to a method of applying the coat- Many metals, which are otherwise suitable for structural purposes, do not have the desired surface resistance to erosion, oxidation, and the like.
  • aluminum alloy aeronautical propeller blades are strong 3 and of light weight, however, they are not highly resistant to damage from the abrasive action of particles of Water, sand, stones and other material prevalent on runways. Flame-sprayed coatings, such as disclosed in United States Patent No. 2,707,691, granted to William M.
  • Wheildon In, May 3, 1955, provide an excellent erosion-resistant surface; however, such coatings are not suitable for direct application to aeronautical propellers because in order to attain the high degree of adhesion necessary the surface must be modified, for example my mechanical roughing which is undesirable; because the propeller blades must frequently be inspected for incipient failure and once a coating has been applied, according to the foregoing method of application, it cannot be removed without damage to the propeller; and finally, because the coating is not entirely impervious and hence is a starting point for corrosion.
  • Objects of this invention are to provide an article of manufacture having a coating applied thereto which embodies the advantages of resistance to abrasion and oxidation of coatings of the kind disclosed in the Wheildon patent, and the further advantages that it is bonded to the surface without modification of the latter; that it is corrosion-resistant; and that it is removable without damage to the propeller.
  • the article which may be a propeller comprises a rigid structure having a multi-layer coating applied thereto including an abrasive resistant layer and a substantially corrosion-resistant bonding layer adhesively uniting the abrasive-resistant layer to the structure, but which may be degraded by means of an agent which is not harmful to the structure to permit removing the entire coating.
  • the coating also includes an intermediate metal layer between the abrasiveresistant layer and the bonding layer and may optionally have an exterior layer applied to the abrasive-resistant layer to reduce porosity of the latter.
  • the method comprises cleaning the surface of the structure which is to be coated, applying a layer of synthetic liquid resin to the surface, allowing the resin layer to dry, and then curing it at a temperature below that which would adversely affect the physical properties of the structure.
  • the method contemplates including with the resin an admixture of a powdered metal filler and, when the latter is employed, the surface of the layer, after curing, is roughened to expose the particles.
  • the filler may be omitted and a powdered metal deposited on the resin layer before curing, so that it remains exposed on the surface.
  • a flame-sprayed intermediate layer of metal is then applied to the rough surface of the resin layer and finally a flame-sprayed external layer of impact resistant material is applied to the intermediate layer.
  • FIG. 1 discloses a section through a metal structure having a multi-layer coating applied to one side and in which the bonding layer includes a filler, it being understood that the coating may be applied to both sides of the structure;
  • FIG. 2 is a corresponding section in which the filler has been omitted from the bonding layer and powdered metal has been applied to the surface of the bonding layer prior to application of the intermediate layer;
  • FIG. 3 is a modification on which a sealing layer is applied to the external surface of the multi-layer coating.
  • FIG. 4 is a side elevation of an aeronautical propeller with one of the blades shown in cross section.
  • FIG. 1 there is shown a base 10 which has applied to it a coating 12 of multilayer construction. While shown applied to one surface it is to be understood that the coating may be applied to as little or as much of the external surface of the base as is desired.
  • the base itself is rigid and suitable for manufacture of structural members or articles.
  • the coating 12 includes an inner bonding layer 14 next to the base, an intermediate layer 16 and an external abrasive-resistant layer 18.
  • the bonding layer 14 is a corrosion-resistant layer of adhesive synthetic resin in a cured condition containing metal powder particles, some of which are exposed at the surface of the resin layer. Alternatively, the metal powder particles may be applied only to the surface of the resin so that when the latter is cured they project part way out of the surface.
  • a resin is chosen for the bonding layer which has a high adhesive strength and preferably is an epoxy resin.
  • the intermediate layer 16 is a flame-sprayed metal applied to the roughened surface of the bonding layer by well-known methods, for example, with a Schoop gun.
  • the external abrasive-resistant layer 18 may be of hard metals, refractory metal carbides or fused metal oxides, or combinations of metal oxides including silicon dioxide, flame-sprayed on the intermediate layer 16, according to the method disclosed in the Wheildon patent, 2,707,- 691.
  • a rod consisting of a stable metal oxide is fed into a flame hot enough to melt it, whereupon it is instantly atomized to form discrete molten particles and while still molten the particles are projected with a blast of gas onto the surface to be coated.
  • Oxides and carbides applied in this fashion are extremely stable and highly resistant to impact abrasion.
  • a sealing layer 20 (FIG. 3) may be applied to the layer 18 to reduce its porosity.
  • An epoxy resin is preferred.
  • the multi-layer coating 12 embodies highly desirable characteristics for protecting structural members and articles in general and in particular aeronautical propellers for it provides high impact resistance to surface damage, is corrosion-resistant, may be applied without modifying the surface of the propeller preparatory to its application, and may be removed by degrading the bonding layer without damage to the propeller.
  • the aluminum alloy propeller is thoroughly cleaned after its surface has been anodized, whereupon a layer of synthetic resin is applied to the clean surface.
  • the synthetic resin is preferably an epoxy resin, in particular, a liquid resin, such as that known under the trade name Araldite, however, it is to be understood that any resin having the same or equivalent properties of corrosionresistance and adhesive strength may be employed.
  • a filler of powdered alumina or aluminum alloy is mixed therewith in approximately equal volumes. The admixture of resin and filler is then sprayed upon the surface to a thickness between 0.002" and 0.008" and preferably 0.005".
  • the layer of synthetic resin is allowed to dry and is then cured by heating the propeller at a temperature within the range of 80 C. to 100 C.
  • a resin having a low curing temperature curing may be effected without adversely affecting the physical properties of the propeller.
  • the surface of the synthetic resin layer is mechanically roughed with shot or abrasive to expose particles of the aluminum filler.
  • the filler may be omitted and a layer of powdered aluminum or aluminum alloy, preferably dendritic is applied to the surface of the resin prior to curing, leaving the particles exposed to a depth of /3 of their diameter.
  • a layer of powdered aluminum or aluminum alloy, preferably dendritic is applied to the surface of the resin prior to curing, leaving the particles exposed to a depth of /3 of their diameter.
  • the surface need not be roughened by mechanical means.
  • the exposed particles, applied in either Way, provide a keying surface which enhances attachment of the intermediate layer thereto.
  • the intermediate layer 16 is next applied by flamespraying and consists of an aluminum or aluminum alloy deposited by means of a Schoop gun, or the like, on the rough surface of the resin layer.
  • the flame-spraying of metals is well-known and the method using metal wire, referred to in the Wheildon patent, is preferred.
  • the impact resistance layer 18, preferably is applied according to the method described in the Wheildon patent and may be comprised of fused metal oxide or combinations of metal oxides, including silicon dioxide.
  • the layer is conveniently fused aluminum oxide and is between 0.010 and 0.025" thick and preferably 0.020" thick.
  • a sealing layer of epoxy resin 20 may be applied to the abrasive-resistant layer and cured.
  • This layer is between 0.002 and 0.005" thick and preferably 0.003". It has the effect of sealing the otherwise somewhat porous surface of the impact resistant layer and is not always necessary.
  • the epoxy resin employed for the bonding and sealing layers referred to herein as Araldite, is manufactured by the Ciba Co., Inc., Plastics Division, Kimberton, Pennsylvania.
  • Araldite is a solvent solution of an epoxy resin of the 4,4 bisphenylol glycidyl ether type having cold curing amine hardeners which can be accelerated by the application of heat.
  • Epoxy resins are remarkable for the unusual combination of properties they possess and, in particular, they combine unsurpassed adhesive strength with hardness, impact resistance and flexibility. At the same time, epoxy resins may be degraded when exposed to acetone, ethyl acetate, sulphuric acid, and chlorinated solvents.
  • Ardrox 20 is a mixture of methylene cellulose, ammonia, wax and methylene dichloride and is entirely soluble in water.
  • the multi-layer coating as thus applied, has the effect of reducing the abrasion of the blades, adheres to the blades, even at the high rotational speed encountered, resists corrosion, and yet may be rendered removable for inspection of the blades by treatment with a resin degrading agent such as referred to above.
  • etch primer such as that sold under the name of Celletch, manufactured by Canadian Pittsburgh Industries Limited, Paints Division, Montreal, Canada.
  • Celletch is a mixture of phenolic resin, polyvinyl butyrol, talc and zinc chromates with phosphoric acid and alcohol solvents.
  • aluminum alloy blade is intended to include any blade of aluminum alloy. whether it has an oxide surface or not. In most cases, the aluminum alloy blades are anodized before applying the coating described herein.
  • the method of coating a rigid structural member which comprises, depositing a layer of corrosion-resistant adhesive resin on the surface of the member in an uncured liquid condition, curing the layer, applying a flamesprayed layer of metal to the cured layer and then applying an impact resistant flame-sprayed layer of a member selected from the group consisting of stable metal oxides and refractory metal carbides.
  • the method of coating an aluminum alloy propeller which comprises cleaning the blades, applying an uncured layer of epoxy resin thereto, curing the resin layer at a temperature below that which deleteriously affects the propeller, treating the resin layer to produce a roughened surface, applying a flame-sprayed layer of aluminum to the roughened surface of the resin layer, and thereafter applying an impact resistant flame-sprayed layer of a member selected from the group consisting of stable metal oxides and refractory metal carbides.
  • a method of operating an airplane propeller in an unusually abrasive environment wherein the propeller is protected by an abrasion resistant outer layer which must be removed from time to time for inspection of the propeller comprising depositing a layer of corrosion resistant adhesive resin on the surface of the member in an uncured condition, curing the resin layer in situ, applying a flame-sprayed layer of metal to the cured layer, then applying an impact resistant flamesprayed layer of a member selected from the group consisting of stable metal oxides and refractory metal carbides, driving the propeller until inspection is required, and then degrading the cured resin and removing the flame-sprayed coatings to bare the propeller surface for inspection.
  • a method according to claim 10 wherein a layer of metal powder is applied to the surface of the resin layer prior to curing, so that the major portions of the powder particles project from the surface.
  • a rigid metal aeronautical propeller having a protective multi-layer coating applied thereto, said coating including a rigid external layer of material that is highly resistant to impact abrasion, said layer comprised of a member selected from the group consisting of stable metal oxides and refractory metal carbides and a bonding layer of from about .002" to .008" thickness, the adhesive strength between the successive layers and the propeller being sufficiently great to resist the centrifugal forces encountered during rotation of the propeller and said bonding layer being degradable by means of an agent Which is not harmful to the propeller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Laminated Bodies (AREA)
US15425A 1959-04-08 1960-03-16 Removable protective coating for articles of manufacture, such as aeronautical propeller blades Expired - Lifetime US3144349A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11885/59A GB951231A (en) 1959-04-08 1959-04-08 Improvements in erosion resistant flame-sprayed coatings

Publications (1)

Publication Number Publication Date
US3144349A true US3144349A (en) 1964-08-11

Family

ID=9994465

Family Applications (1)

Application Number Title Priority Date Filing Date
US15425A Expired - Lifetime US3144349A (en) 1959-04-08 1960-03-16 Removable protective coating for articles of manufacture, such as aeronautical propeller blades

Country Status (6)

Country Link
US (1) US3144349A (enrdf_load_html_response)
BE (1) BE589321A (enrdf_load_html_response)
CH (1) CH411513A (enrdf_load_html_response)
DE (2) DE1180216B (enrdf_load_html_response)
GB (2) GB951231A (enrdf_load_html_response)
NL (2) NL250277A (enrdf_load_html_response)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325303A (en) * 1959-04-08 1967-06-13 Norton Co Protective flame sprayed coatings
US3910857A (en) * 1973-11-02 1975-10-07 Avco Corp High compressive strength adhesive
US3910719A (en) * 1973-11-02 1975-10-07 Avco Corp Compressor wheel assembly
US4111600A (en) * 1976-12-09 1978-09-05 United Technologies Corporation Breakaway fan blade
US4279575A (en) * 1977-11-19 1981-07-21 Rolls-Royce Limited Turbine rotor
EP0124585A4 (en) * 1982-10-27 1985-04-03 Sermatech Internat Inc COATED PART, COATING AND ITS PRODUCTION METHOD.
US4521475A (en) * 1983-04-01 1985-06-04 Riccio Louis M Method and apparatus for applying metal cladding on surfaces and products formed thereby
US4554195A (en) * 1982-06-10 1985-11-19 Wilbanks International, Inc. Ceramic coated abrasion resistant member and process for making
US4618504A (en) * 1983-12-20 1986-10-21 Bosna Alexander A Method and apparatus for applying metal cladding on surfaces and products formed thereby
US4671740A (en) * 1982-06-10 1987-06-09 Wilbanks International, Inc. Ceramic coated abrasion resistant member and process for making
WO1987004952A1 (en) * 1986-02-13 1987-08-27 Bosna Alexander A Method and apparatus for applying metal cladding on surfaces and products formed thereby
EP0198092A4 (en) * 1984-10-16 1988-01-07 Nippon Telegraph & Telephone MAGNESIUM OR MAGNESIUM ALLOY WITH TREATED SURFACE, AND METHOD FOR TREATING THEIR SURFACE.
US4751113A (en) * 1983-04-01 1988-06-14 Riccio Louis M Method and means of applying an antifouling coating on marine hulls
US5306120A (en) * 1992-03-19 1994-04-26 Eurocopter Deutschland Gmbh System to protect against erosion a body subjected to an airflow
FR2708289A1 (fr) * 1992-05-22 1995-02-03 Davidson Textron Inc Système pour produire des pièces d'aluminium brillantes.
EP1244544A4 (en) * 1999-10-25 2003-01-29 Rolls Royce Corp EROSION-RESISTANT COATINGS FOR ORGANIC MATRIX COMPOSITES
US20050025896A1 (en) * 2003-08-01 2005-02-03 Grigoriy Grinberg Thermal spray metal on low heat resistant substrates
US20070231156A1 (en) * 2005-12-14 2007-10-04 Hontek Corporation Method and coating for protecting and repairing an airfoil surface
US20080159870A1 (en) * 2006-12-14 2008-07-03 Hontek Corporation Method and coating for protecting and repairing an airfoil surface using molded boots, sheet or tape
US20100008788A1 (en) * 2008-07-14 2010-01-14 Barbee Brent W Protector for a leading edge of an airfoil
US20100154734A1 (en) * 2008-12-19 2010-06-24 Sebright Jason L Method of making a coated article
US20100249295A1 (en) * 2004-05-24 2010-09-30 Hontek Corporation Abrasion resistant coatings
WO2013092211A1 (en) * 2011-12-19 2013-06-27 Lm Wind Power A/S An erosion shield for a wind turbine blade
EP2971531A4 (en) * 2013-03-15 2016-11-30 United Technologies Corp SHOVELS AND MANUFACTURING PROCESS
US20180209400A1 (en) * 2015-07-17 2018-07-26 Lm Wp Patent Holding A/S A wind turbine blade having an erosion shield
US11015571B2 (en) * 2015-12-17 2021-05-25 Emprending Business, S.L. Inner covering for wind turbine blades and method for mounting same
CN114182193A (zh) * 2021-10-30 2022-03-15 贵州通用航空有限责任公司 一种轻型飞机螺旋桨用保护层及其制造方法

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3571651D1 (en) * 1984-10-17 1989-08-24 Mitsubishi Rayon Co Undercoat composition and composite molded articles produced usin said compositon
JPS63176453A (ja) * 1987-01-16 1988-07-20 Dainippon Toryo Co Ltd 金属溶射被膜の作製方法
GB2227688B (en) * 1988-12-17 1993-08-18 Harold Birkett Improved method for applying protective covering to surfaces
DE69002481T2 (de) * 1989-02-28 1993-12-16 Nippon Paint Co Ltd Verfahren zur Beschichtung von Werkstücken mit Aluminium.
US5137426A (en) * 1990-08-06 1992-08-11 General Electric Company Blade shroud deformable protective coating
DE19545025A1 (de) * 1995-12-02 1997-06-05 Abb Research Ltd Verfahren zur Aufbringung einer metallischen Haftschicht für keramische Wärmedämmschichten auf metallische Bauteile
FR2862985B1 (fr) * 2003-11-27 2006-02-24 Airbus France Ensemble comprenant deux pieces metalliques protegees contre la formation d'un couple galvanique
US10151188B2 (en) 2014-12-16 2018-12-11 Ge Oil & Gas Pressure Control Lp System and method of reducing erosion in frac applications
US12128442B2 (en) 2020-04-10 2024-10-29 S+S Industries Technology Llc Coated fluid handling components and methods for protecting and extending the service life of fluid handling components

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2398108A (en) * 1943-09-25 1946-04-09 Wingfoot Corp Metal coating
US2662831A (en) * 1950-07-19 1953-12-15 Anderson Brass Works Method of bonding copper to aluminum or aluminum alloys
US2707691A (en) * 1952-08-08 1955-05-03 Norton Co Coating metals and other materials with oxide and articles made thereby
US2767105A (en) * 1953-04-17 1956-10-16 Nat Res Corp Coating
US2776225A (en) * 1953-01-16 1957-01-01 Nat Res Corp Process for the production of a highly reflectant, heat resistant wrinkle finish on a base
US2852421A (en) * 1954-06-08 1958-09-16 Johnson & Johnson Adhesive coated metallic sheet and its method of manufacturing
US2913813A (en) * 1955-06-22 1959-11-24 Ohio Commw Eng Co Composite metal product
US2934456A (en) * 1956-08-14 1960-04-26 Schutt Josef Process for the production of diffusion resistant coatings
US3006782A (en) * 1956-03-09 1961-10-31 Norton Co Oxide coated articles with metal undercoating

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1143847A (fr) * 1956-02-25 1957-10-04 Rech S Et De Fabrications Soc Protection de surfaces métalliques immergées dans l'eau de mer
FR1172867A (fr) * 1956-03-09 1959-02-17 Norton Co Objet composite, et procédé pour revêtir des matières rigides afin de les protéger de l'oxydation

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2398108A (en) * 1943-09-25 1946-04-09 Wingfoot Corp Metal coating
US2662831A (en) * 1950-07-19 1953-12-15 Anderson Brass Works Method of bonding copper to aluminum or aluminum alloys
US2707691A (en) * 1952-08-08 1955-05-03 Norton Co Coating metals and other materials with oxide and articles made thereby
US2776225A (en) * 1953-01-16 1957-01-01 Nat Res Corp Process for the production of a highly reflectant, heat resistant wrinkle finish on a base
US2767105A (en) * 1953-04-17 1956-10-16 Nat Res Corp Coating
US2852421A (en) * 1954-06-08 1958-09-16 Johnson & Johnson Adhesive coated metallic sheet and its method of manufacturing
US2913813A (en) * 1955-06-22 1959-11-24 Ohio Commw Eng Co Composite metal product
US3006782A (en) * 1956-03-09 1961-10-31 Norton Co Oxide coated articles with metal undercoating
US2934456A (en) * 1956-08-14 1960-04-26 Schutt Josef Process for the production of diffusion resistant coatings

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325303A (en) * 1959-04-08 1967-06-13 Norton Co Protective flame sprayed coatings
US3910857A (en) * 1973-11-02 1975-10-07 Avco Corp High compressive strength adhesive
US3910719A (en) * 1973-11-02 1975-10-07 Avco Corp Compressor wheel assembly
US4111600A (en) * 1976-12-09 1978-09-05 United Technologies Corporation Breakaway fan blade
US4279575A (en) * 1977-11-19 1981-07-21 Rolls-Royce Limited Turbine rotor
US4671740A (en) * 1982-06-10 1987-06-09 Wilbanks International, Inc. Ceramic coated abrasion resistant member and process for making
US4554195A (en) * 1982-06-10 1985-11-19 Wilbanks International, Inc. Ceramic coated abrasion resistant member and process for making
EP0124585A4 (en) * 1982-10-27 1985-04-03 Sermatech Internat Inc COATED PART, COATING AND ITS PRODUCTION METHOD.
US4521475A (en) * 1983-04-01 1985-06-04 Riccio Louis M Method and apparatus for applying metal cladding on surfaces and products formed thereby
US4751113A (en) * 1983-04-01 1988-06-14 Riccio Louis M Method and means of applying an antifouling coating on marine hulls
US4618504A (en) * 1983-12-20 1986-10-21 Bosna Alexander A Method and apparatus for applying metal cladding on surfaces and products formed thereby
US4770946A (en) * 1984-10-16 1988-09-13 Nippon Telegraph And Telephone Corporation Surface-treated magnesium or magnesium alloy, and surface treatment process therefor
EP0198092A4 (en) * 1984-10-16 1988-01-07 Nippon Telegraph & Telephone MAGNESIUM OR MAGNESIUM ALLOY WITH TREATED SURFACE, AND METHOD FOR TREATING THEIR SURFACE.
US4714623A (en) * 1985-02-28 1987-12-22 Riccio Louis M Method and apparatus for applying metal cladding on surfaces and products formed thereby
WO1987004952A1 (en) * 1986-02-13 1987-08-27 Bosna Alexander A Method and apparatus for applying metal cladding on surfaces and products formed thereby
US5306120A (en) * 1992-03-19 1994-04-26 Eurocopter Deutschland Gmbh System to protect against erosion a body subjected to an airflow
FR2708289A1 (fr) * 1992-05-22 1995-02-03 Davidson Textron Inc Système pour produire des pièces d'aluminium brillantes.
NL9301327A (nl) * 1992-05-22 1995-02-16 Davidson Textron Inc Systeem voor het vervaardigen van heldere aluminium onderdelen.
EP1244544A4 (en) * 1999-10-25 2003-01-29 Rolls Royce Corp EROSION-RESISTANT COATINGS FOR ORGANIC MATRIX COMPOSITES
US20050025896A1 (en) * 2003-08-01 2005-02-03 Grigoriy Grinberg Thermal spray metal on low heat resistant substrates
WO2005012589A1 (en) * 2003-08-01 2005-02-10 Praxair S. T. Technology, Inc. Method of thermal spraying metal
US9663663B2 (en) 2004-05-24 2017-05-30 Hontek Corporation Airfoil leading edge coatings
US8557388B2 (en) 2004-05-24 2013-10-15 Hontek Corporation Erosion resistant coatings for leading edges of airfoils
US9732232B2 (en) 2004-05-24 2017-08-15 Hontek Corporation Abrasion resistant coatings
US10557038B2 (en) 2004-05-24 2020-02-11 Hontek Corporation Erosion resistant coatings
US20100249295A1 (en) * 2004-05-24 2010-09-30 Hontek Corporation Abrasion resistant coatings
US20100256296A1 (en) * 2004-05-24 2010-10-07 Hontek Corporation Abrasion resistant coatings
US8124235B2 (en) 2004-05-24 2012-02-28 Hontek Corporation Method of making matte airfoil coatings
US8091227B2 (en) 2005-12-14 2012-01-10 Hontek Corporation Method of repairing an airfoil surface
US20070231156A1 (en) * 2005-12-14 2007-10-04 Hontek Corporation Method and coating for protecting and repairing an airfoil surface
US9770791B2 (en) 2005-12-14 2017-09-26 Hontek Corporation Method for repairing an airfoil surface having an elastomeric protective coating
US20110158807A1 (en) * 2006-12-14 2011-06-30 Hong Shek C Method and coating for protecting and repairing an airfoil surface using molded boots, sheet or tape
US20080159870A1 (en) * 2006-12-14 2008-07-03 Hontek Corporation Method and coating for protecting and repairing an airfoil surface using molded boots, sheet or tape
US20100008788A1 (en) * 2008-07-14 2010-01-14 Barbee Brent W Protector for a leading edge of an airfoil
US20100154734A1 (en) * 2008-12-19 2010-06-24 Sebright Jason L Method of making a coated article
WO2013092211A1 (en) * 2011-12-19 2013-06-27 Lm Wind Power A/S An erosion shield for a wind turbine blade
US9752444B2 (en) 2011-12-19 2017-09-05 Lm Wp Patent Holding A/S Erosion shield for a wind turbine blade
EP2971531A4 (en) * 2013-03-15 2016-11-30 United Technologies Corp SHOVELS AND MANUFACTURING PROCESS
US9926793B2 (en) 2013-03-15 2018-03-27 United Technologies Corporation Blades and manufacture methods
US20180209400A1 (en) * 2015-07-17 2018-07-26 Lm Wp Patent Holding A/S A wind turbine blade having an erosion shield
US11092133B2 (en) * 2015-07-17 2021-08-17 Lm Wp Patent Holding A/S Wind turbine blade having an erosion shield
US11015571B2 (en) * 2015-12-17 2021-05-25 Emprending Business, S.L. Inner covering for wind turbine blades and method for mounting same
CN114182193A (zh) * 2021-10-30 2022-03-15 贵州通用航空有限责任公司 一种轻型飞机螺旋桨用保护层及其制造方法
CN114182193B (zh) * 2021-10-30 2023-08-11 贵州通用航空有限责任公司 一种轻型飞机螺旋桨用保护层及其制造方法

Also Published As

Publication number Publication date
DE1251127B (de) 1967-09-28
GB951231A (en) 1964-03-04
GB971981A (en) 1964-10-07
NL250277A (enrdf_load_html_response) 1900-01-01
BE589321A (fr) 1960-10-03
CH411513A (de) 1966-04-15
NL270234A (enrdf_load_html_response) 1900-01-01
DE1180216B (de) 1964-10-22

Similar Documents

Publication Publication Date Title
US3144349A (en) Removable protective coating for articles of manufacture, such as aeronautical propeller blades
US4077921A (en) Sprayable low density ablator and application process
EP1129787B1 (en) Coatings on fiber reinforced composites
US3348995A (en) Method of coating metal surfaces with polyethylene utilizing a polyethylene primer and articles produced thereby
US9920431B2 (en) Process for preparing a substrate for thermal spraying of a metal coating
US4595714A (en) Ablative coating composition and product
US3325303A (en) Protective flame sprayed coatings
GB1558449A (en) Rubber-metal composite structures having resistance to corrosion
US4316939A (en) Process for the application of an anti-corrosive coating upon metallic objects, especially bottles for liquefied gas
JP4395359B2 (ja) 高温適用のための、低温硬化セラミックコーティングを形成するためのシステム及び方法
US20080145555A1 (en) Method of coating a substrate
US3892883A (en) Process for plasma spraying fiber-reinforced thermosetting resin laminates
US20150111058A1 (en) Method of coating a composite material and a coated edge of a composite structure
EP0544040B1 (en) Protection coating for titanium article
US7419704B2 (en) Coatings on fiber reinforced composites
US3642530A (en) Method for forming an electrically insulating coating
US3103446A (en) Method of adhering thin
JPS6279257A (ja) 軽量断熱コ−テイング材
US2355474A (en) Repair of vitreous enamelware equipment
EP0049613B1 (en) Method of bonding a plastics body to metal
CN104364325A (zh) 低应用温度的粉末涂料
RU2735438C1 (ru) Способ нанесения покрытий на насосно-компрессорные трубы
JPS62234580A (ja) 金属管の内面塗装方法
JPS6112516B2 (enrdf_load_html_response)
RU2825901C1 (ru) Способ защиты лопасти воздушного винта от эрозионного и абразивного износа (варианты)