GB2481399A - A component coated with tungsten carbide, zinc and PTFE - Google Patents
A component coated with tungsten carbide, zinc and PTFE Download PDFInfo
- Publication number
- GB2481399A GB2481399A GB1010423.0A GB201010423A GB2481399A GB 2481399 A GB2481399 A GB 2481399A GB 201010423 A GB201010423 A GB 201010423A GB 2481399 A GB2481399 A GB 2481399A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tungsten carbide
- zinc
- search
- ptfe
- document
- 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- Withdrawn
Links
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 title claims abstract description 22
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 239000011701 zinc Substances 0.000 title claims abstract description 18
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 18
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 15
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 9
- 238000005260 corrosion Methods 0.000 claims abstract description 4
- 230000007797 corrosion Effects 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000004210 cathodic protection Methods 0.000 claims description 3
- 102220491117 Putative postmeiotic segregation increased 2-like protein 1_C23F_mutation Human genes 0.000 claims 1
- 102220057728 rs151235720 Human genes 0.000 claims 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims 1
- 229910052721 tungsten Inorganic materials 0.000 claims 1
- 239000010937 tungsten Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 13
- 238000000576 coating method Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000010147 laser engraving Methods 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- -1 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 238000007749 high velocity oxygen fuel spraying Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
- C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
-
- 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
- C23C4/06—Metallic 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
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/129—Flame spraying
-
- 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
- C23C4/134—Plasma spraying
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The disclosed component is coated by a process comprising the steps of applying a tungsten carbide coating, laser engraving said coating to form a relief, and filling the relief with zinc and polytetrafluoroethylene (PTFE). The component is hard-wearing, has a low coefficient of friction and is corrosion resistant. The tungsten carbide coating may be applied by plasma or high velocity oxygen fuel (HVOF) spraying.
Description
Tungsten Carbide Coated Component Laser EngravedFilled With Zinc and PTFE.
The present invention is a component coated withTungsten Carbide using Plasma or HVOF thermal spray process, ground and polished and Laser Engraved to form a relief.
The relief is filled with a zinc/ptfe coating polished to form a flat smooth surface.
The method of the present invention is unique because the component of tungsten carbide zinc and ptfe produces a hard wearing, low coefficient and corrosive resistant surface.
The use of zinc provides the tungsten carbide with passive and active cathodic protection.
Because of the depth of the relief the zinc/ptfe will be released as the component wears producing high lubicity continuously over its life.
If used in highly corrosive enviornment the zinc will be eroded releasing ptfe particals which will increase the life of the component.
Tungsten Carbide Coated Component Laser Engraved. Filled With Zinc and PTFEJ The present invention is Tungsten Carbide Coated component Laser Engraved, to form a relief. The relief is filled with Zinc and PTFE, producing a bard wearing tungsten carbide coating with a low coefficient and excellent corrosive resistance.
The invention using plasma but more often HVOF High velocity oxygen-fuel is the state-of-the-art processing surface coating system; The present system reaches supersonic speeds and ensures consistent repeatability, with the advanced accurate mixing of gases which occurs within the gun. The speeds and energy are controlled to improve the bond strength of the coated surface and the combination of spherical Tungsten Carbide material within a matrix of nickel provides a consistently harder coating.
The HVOF sprays powders at high velocity on to the substrate and spherical particles of up to 2,500 + or -500 flY hardness, gives reduced porosity with a strong metallurgical bonding between the Tungsten Carbide layer and the. base material. This results in a greatly extended life and performance of the cylinders.
After applying tungsten carbide coating the component, is diamond ground and polished to the required tolerance and laser engraved to form a relief.
The Zinc creates a passive coating or as an active sacrificial anode used in cathodic protection where t is intended to be dissolved to protect other metallic components. The more active metal is more easily oxidized than the protected metal and corrodes first (hence the term "sacrificial'); it generally must oxidize nearly completely before the less active metal will corrode, thus acting as a barrier against corrosion for the protected metal.
The PTFE produces a component with a low coefficient, due to its low friction; it is used for applications where sliding action of the part is required. The conponent will require polishing after the application of the Zinclptfe coating, to form a flat smooth finish.
In conclusion to preserve the originality of the Tungsten Carbide coated component Filled with Zinc and PTFE there are five critical elements of manufacture, 1. Tungsten Carbide Coating using PLASMA or HYOF thermal spray coating.
2. The Laser penetration of the said Tungsten Carbide Coating.
3. Formulation of the Zinc and PTFIE 4. The application of the passive and active cathodic protected material 5. Grinding and finishing of the said component.
The method of the present invention is unique because it combines the hard wear factor of the tungsten carbide, low coefficient of the ptfe and the corrosion protection of the Zinc. Fig 1
Indicates the blue hexagon lines, which are constructed by laser pulsing into the Tungsten Carbide to make a relief, (red area). The blue line is at the top of this relief and is a tungsten carbide surface.
The red area is coated inside and filled to the top of the cell with Zinc and PTFE compound and ground and super finished to the correct diameter. Producing a smooth level hard wearing Tungsten Carbide, Zinc and PTFIE coating with a low coefficient and excellent corrosive resistance. Fig 2
Indicates a selection of configurations which can be laser etched, chemical etch or grinding could be used as a method of creating a relief into the Tungsten Carbide material.
Claims (4)
- CLAIMS1. The present invention is Tungsten Carbide Coated component Laser Engraved, Filled with Zinc and PTFE, producing a hard wearing low coefficient corrosion resistant component.
- 2. Allows tungsten cabide to be used in corrosive environments.
- 3. Zinc provides passive and active cathodic protection for the tungsten carbide.
- 4. Delivers ptfe continuosly throughout the components life *.:r: INTELLECTUAL . ... PROPERTY OFFICE Application No: GB 1010423.0 Examiner: Dr Karen Payne Claims searched: 1 -4 Date of search: 28 October 2010 Patents Act 1977: Search Report under Section 17 Documents considered to be relevant: Category Relevant Identity of document and passage or figure of particular relevance to claims X 1 -4 WO 2007/109784 A2 (TIMKEN CO) See pages 4 -6, 8, 10 & 11.A,E -EP 2226409 A2 (GENERAL ELECTRIC) See columns 2 -4, 6 & 8 and figure 3.A -US2008/0159671A1 (LEONARDELLI) See pages 1 -4 and figure 1.A -GB2384033A (DAIDO METAL CO) See pages 3,5 & 6.A -WO 2009/073196 Al (UNITED STATES PIPE FOUNDRY) See pages 7 -9.Categories: X Document indicating lack of novelty or inventive A Document indicating technological background and/or state step of the art.Y Document indicating lack of inventive step if P Document published on or after the declared priority date but combined with one or more other documents of before the filing date of this invention.same category.& Member of the same patent family E Patent document published on or after, but with priority date earlier than, the filing date of this application.Field of Search:Search of GB, EP, WO & US patent docjments classified in the following areas of the UKCX Worldwide search of patent documents classified in the following areas of the IPC C23C; C23F; F16C The following online and other databases have been used in the preparation of this search report EPODOC, WPI, INSPEC International Classification: Subclass Subgroup Valid From C23C 0028/00 01/01/2006 C23C 0004/10 01/01/2006 Intellectual Property Office is an operating name of the Patent Office www.ipo.gov.uk
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1010423.0A GB2481399A (en) | 2010-06-22 | 2010-06-22 | A component coated with tungsten carbide, zinc and PTFE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1010423.0A GB2481399A (en) | 2010-06-22 | 2010-06-22 | A component coated with tungsten carbide, zinc and PTFE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201010423D0 GB201010423D0 (en) | 2010-08-04 |
| GB2481399A true GB2481399A (en) | 2011-12-28 |
Family
ID=42582764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1010423.0A Withdrawn GB2481399A (en) | 2010-06-22 | 2010-06-22 | A component coated with tungsten carbide, zinc and PTFE |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2481399A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367707A (en) * | 2016-09-23 | 2017-02-01 | 常州大学 | Laser remelting method for ultrasonic spraying of WC-12Co coating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2384033A (en) * | 2001-12-17 | 2003-07-16 | Daido Metal Co | Crosshead bearing comprising resin layer |
| WO2007109784A2 (en) * | 2006-03-23 | 2007-09-27 | The Timken Company | Surface treatments for spiral bevel gear sets |
| US20080159671A1 (en) * | 2006-08-02 | 2008-07-03 | Miba Gleitlager Gmbh | Anti-Friction Layer for a Bearing Element |
| WO2009073196A1 (en) * | 2007-12-04 | 2009-06-11 | United States Pipe And Foundry Company | Anti-corrosive coating for metal surfaces |
| EP2226409A2 (en) * | 2009-03-06 | 2010-09-08 | General Electric Company | Erosion and corrosion resistant turbine compressor airfoil and method of making the same |
-
2010
- 2010-06-22 GB GB1010423.0A patent/GB2481399A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2384033A (en) * | 2001-12-17 | 2003-07-16 | Daido Metal Co | Crosshead bearing comprising resin layer |
| WO2007109784A2 (en) * | 2006-03-23 | 2007-09-27 | The Timken Company | Surface treatments for spiral bevel gear sets |
| US20080159671A1 (en) * | 2006-08-02 | 2008-07-03 | Miba Gleitlager Gmbh | Anti-Friction Layer for a Bearing Element |
| WO2009073196A1 (en) * | 2007-12-04 | 2009-06-11 | United States Pipe And Foundry Company | Anti-corrosive coating for metal surfaces |
| EP2226409A2 (en) * | 2009-03-06 | 2010-09-08 | General Electric Company | Erosion and corrosion resistant turbine compressor airfoil and method of making the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367707A (en) * | 2016-09-23 | 2017-02-01 | 常州大学 | Laser remelting method for ultrasonic spraying of WC-12Co coating |
| CN106367707B (en) * | 2016-09-23 | 2019-10-11 | 常州大学 | A kind of laser remolten method of supersonic spray coating WC-12Co coating |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201010423D0 (en) | 2010-08-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |