US3743533A - Flame spraying - Google Patents
Flame spraying Download PDFInfo
- Publication number
- US3743533A US3743533A US00193594A US3743533DA US3743533A US 3743533 A US3743533 A US 3743533A US 00193594 A US00193594 A US 00193594A US 3743533D A US3743533D A US 3743533DA US 3743533 A US3743533 A US 3743533A
- Authority
- US
- United States
- Prior art keywords
- mesh
- weight
- powder
- flame spray
- 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
Links
- 238000010285 flame spraying Methods 0.000 title description 8
- 239000000843 powder Substances 0.000 abstract description 25
- 239000007921 spray Substances 0.000 abstract description 19
- 239000002245 particle Substances 0.000 abstract description 10
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 9
- 239000000758 substrate Substances 0.000 description 8
- 239000000956 alloy Substances 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 229910052796 boron Inorganic materials 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000011109 contamination Methods 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000011236 particulate material Substances 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003466 welding Methods 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/067—Metallic material containing free particles of non-metal elements, e.g. carbon, silicon, boron, phosphorus or arsenic
Definitions
- This invention relates to an improved flame spray powder.
- This improved flame spray powder has at least 3.0% by weight of its particles of a particle size finer than 50 mesh and coarser than 275 mesh.
- Another object of the present invention is to provide a flame spray powder that will permit improved deposit efliciency.
- a powder for flame spraying that comprises particles of at least 30% by weight coarser than 275 mesh but finer than 50 mesh.
- Element Percent by weight Chromium 0 to 30 Silicon 0.5 to 6 Boron 0.5 to 5 Iron 0 to 6 Carbon .01 to 1.5 Nickel Balance Cobalt base alloys such as:
- a process for providing a substrate with a nonporous metallic coating comprising in sequence the steps of:
- a substrate is provided with a coating of reduced porosity, decreased contamination and with a greater percentage of deposited metal based on the metal sprayed.
- a process for providing a substrate with a nonporous coating comprising in sequence the steps of:
- Element Percent by weight Chromium O to 30 Silicon 0.5 to 6 Boron 0.5 to 5 Iron 0 to 6 Carbon .01 to 1.5 Nickel Balance (II) fusing the metal which has been deposited on the substrate;
- a process for providing a substrate with a nonporous coating comprising in sequence the steps of:
- a substrate is provided with a coating of reduced porosity, decreased contamination and with a greater percentage of deposited metal based on the metal sprayed.
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
THIS INVENTION RELATES TO AN IMPROVED FLAME SPRAY POWDER. THIS IMPROVED FLAME SPRAY POWDER HAS AT LEAS T 30% BY WEIGHT OF ITS PARTICLES OF A PARTICLE SIZE FINER THAN 50 MESH AND COARSER THAN 275 MESH.
Description
United States Patent 3,743,533 FLAME SPRAYING George Yurasko, Jr., 4040 172nd St., Flushing, N.Y. 11358 No Drawing. Filed Oct. 28, 1971, Ser. 193,594 Int. Cl. B44d 1/08 US. Cl. 117-105.2 6 Claims ABSTRACT OF THE DISCLOSURE This invention relates to an improved flame spray powder. This improved flame spray powder has at least 3.0% by weight of its particles of a particle size finer than 50 mesh and coarser than 275 mesh.
It is known that, in the welding deposition processes known as flame spraying and particularly those two step flame spraying processes requiring a fusion operation after a metal is deposited by spraying, the deposits suffer from porosity and display a good amount of contamination. Further, the two step flame spray applications suffer from relatively low deposit efliciency e.g. deposited metal versus sprayed metal.
It is the general object of the present invention to avoid and overcome with deficiencies of the prior art practices by providing a flame spray powder that, on flame spray applications, produces denser and cleaner weld deposits.
Another object of the present invention is to provide a flame spray powder that will permit improved deposit efliciency.
The foregoing objects of this invention and other objects that will become apparent as the description proceeds are achieved by providing a powder for flame spraying that comprises particles of at least 30% by weight coarser than 275 mesh but finer than 50 mesh.
The weld deposits of flame spray applications have been known to suffer from a certain amount of expected porosity. This porosity diminishes the utility of flame spray applications which applications are well known in the art such as for example the gravity feed type described in copending patent application Ser. No. 702,035 filed on Jan. 31, 1968 now US. Pat. No. 3,620,454. Further, the two step flame spray processes suifer from relatively low deposit efliciencies.
A series of experiments were conducted to achieve a flame spray powder with improved weld deposits and higher deposit efliciency. After extensive experimentation it was found that powders containing at least 50 percent by weight, of particles coarser than 275 mesh but finer than 50 mesh, provided the desired improved results. These improved results are to be achieved by the fact that the powders of the present invention are of an overall coarser size than presently known flame spray powders. These coarser powders when traversing the flame area (of the flame spray torch) achieve a plasticized state which is optimum for compact deposition, with more powder being delivered and retained in the weld deposit.
Several examples of the flame spray powder of this invention are:
At least 30% by weight of powder finer than 50 mesh but coarser than 275 mesh.
At least 50% by weight of powder finer than 50 mesh but coarser than 275 mesh. 7
At least 60% by weight of powder finer than 50 mesh but coarser than 275 mesh.
3,743,533 Patented July 3, 1973 Ice Element: Percent by weight Carbon 1 to 5 Nickel 0 to 60 Silicon 0 to 5 Manganese 0 to 3 Boron 0.5 to 4 Iron Balance Nickel base alloys such as:
Element: Percent by weight Chromium 0 to 30 Silicon 0.5 to 6 Boron 0.5 to 5 Iron 0 to 6 Carbon .01 to 1.5 Nickel Balance Cobalt base alloys such as:
Element: Percent by weight Nickel 0 to 15 Chromium 0 to 4 Silicon 0.1 to 4 Boron .02 to 1.5 Phosphorous 0 to 1.5 Tin 0 to 25 Iron .01 to 2 Cobalt Balance It will be understood by those skilled in the art that the above defined alloys are recited merely as examples and that the novel features of the invention are applicable to all metal powers known in the art as metal spray powders.
It must therefore be understood that the objects of the present invention have been achieved by providing a flame spray powder capable of producing improved weld deposits with greater deposit efliciency.
What is claimed is:
1. A process for providing a substrate with a nonporous metallic coating comprising in sequence the steps of:
(I) flame spraying a particulate material consisting essentially of a metal powder comprising at least 30% by weight of particles finer than 50 mesh and coarser than 275 mesh and (II) fusing the metal which has been deposited on the substrate;
wherein a substrate is provided with a coating of reduced porosity, decreased contamination and with a greater percentage of deposited metal based on the metal sprayed.
2. The process of claim 1 wherein at least by weight of said particles are finer than 50 mesh and coarser than 275 mesh.
3. The process of claim 1 wherein the flame spray powder comprises an iron base alloy.
4. The process of claim 3 wherein the iron base alloy has the following composition:
Element: Percent by weight Carbon 1 to 5 Nickel to 60 Silicon 0 to Manganese O to 3 Boron 0.5 to 4 Iron Balance 5. A process for providing a substrate with a nonporous coating comprising in sequence the steps of:
(I) flame spraying a particulate material consisting essentially of a metal powder comprising at least 30% by weight of particles finer than 50 mesh wherein the metal powder is that of an alloy having the following composition:
Element: Percent by weight Chromium O to 30 Silicon 0.5 to 6 Boron 0.5 to 5 Iron 0 to 6 Carbon .01 to 1.5 Nickel Balance (II) fusing the metal which has been deposited on the substrate;
wherein a substrate is provided with a coating of reduced porosity, decreased contamination and with a greater percentage of deposited metal based on the metal sprayed. 6. A process for providing a substrate with a nonporous coating comprising in sequence the steps of:
(I) flame spraying a particulate material consisting essentially of a metal powder comprising at least 30% by weight of particles finer than 50 mesh wherein the metal powder is that of an alloy having the following composition:
wherein a substrate is provided with a coating of reduced porosity, decreased contamination and with a greater percentage of deposited metal based on the metal sprayed.
References Cited UNITED STATES PATENTS 3,625,732 12/1971 Nelson l1793.1 PF 3,617,358 11/1971 Dittrich 11793.1 PF
OTHER REFERENCES Flame Spray Handbook, vol. IH, Plasma Flame Process, by Ingham and Shepard, published by Metco Inc., Westbury, N.Y., copyright 1965, p. 134 relied on.
EDWARD G. WHITBY, Primary Examiner US. Cl. X.R.
11793.1 PF, 105,160R
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19359471A | 1971-10-28 | 1971-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3743533A true US3743533A (en) | 1973-07-03 |
Family
ID=22714269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00193594A Expired - Lifetime US3743533A (en) | 1971-10-28 | 1971-10-28 | Flame spraying |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3743533A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918137A (en) * | 1973-07-05 | 1975-11-11 | Ford Motor Co | Wear-resistant coating for rotary engine side housing and method of making |
| US3947254A (en) * | 1973-02-15 | 1976-03-30 | United States Steel Corporation | High-temperature abrasion-resistant coating on a ferrous metal substrate |
| US3946793A (en) * | 1973-02-15 | 1976-03-30 | United States Steel Corporation | Method of forming a high-temperature abrasion-resistant coating on a ferrous metal substrate |
| US3963451A (en) * | 1973-02-15 | 1976-06-15 | United States Steel Corporation | Method of forming a high-temperature abrasion-resistant coating on a ferrous metal substrate, and resulting article |
| DE2613588A1 (en) * | 1975-04-11 | 1976-10-21 | Eutectic Corp | METHOD OF EXTENDING THE LIFE OF LINE PIPE |
| EP0028475A1 (en) * | 1979-11-06 | 1981-05-13 | Sherritt Gordon Mines Limited | Thermal spray powder and method of forming abradable seals therewith |
| WO1985000127A1 (en) * | 1983-06-28 | 1985-01-17 | Castolin S.A. | Pulverulent spraying material based on nickel-chromium |
| DE3490081C2 (en) * | 1983-02-23 | 1991-04-25 | Castolin S.A., Lausanne-St. Sulpice, Waadt/Vaud, Ch | Carbide-contg. thermal spraying powder |
| US5403376A (en) * | 1992-03-18 | 1995-04-04 | Printron, Inc. | Particle size distribution for controlling flow of metal powders melted to form electrical conductors |
| US5419976A (en) * | 1993-12-08 | 1995-05-30 | Dulin; Bruce E. | Thermal spray powder of tungsten carbide and chromium carbide |
-
1971
- 1971-10-28 US US00193594A patent/US3743533A/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3947254A (en) * | 1973-02-15 | 1976-03-30 | United States Steel Corporation | High-temperature abrasion-resistant coating on a ferrous metal substrate |
| US3946793A (en) * | 1973-02-15 | 1976-03-30 | United States Steel Corporation | Method of forming a high-temperature abrasion-resistant coating on a ferrous metal substrate |
| US3963451A (en) * | 1973-02-15 | 1976-06-15 | United States Steel Corporation | Method of forming a high-temperature abrasion-resistant coating on a ferrous metal substrate, and resulting article |
| US3918137A (en) * | 1973-07-05 | 1975-11-11 | Ford Motor Co | Wear-resistant coating for rotary engine side housing and method of making |
| DE2613588A1 (en) * | 1975-04-11 | 1976-10-21 | Eutectic Corp | METHOD OF EXTENDING THE LIFE OF LINE PIPE |
| EP0028475A1 (en) * | 1979-11-06 | 1981-05-13 | Sherritt Gordon Mines Limited | Thermal spray powder and method of forming abradable seals therewith |
| DE3490081C2 (en) * | 1983-02-23 | 1991-04-25 | Castolin S.A., Lausanne-St. Sulpice, Waadt/Vaud, Ch | Carbide-contg. thermal spraying powder |
| WO1985000127A1 (en) * | 1983-06-28 | 1985-01-17 | Castolin S.A. | Pulverulent spraying material based on nickel-chromium |
| US5403376A (en) * | 1992-03-18 | 1995-04-04 | Printron, Inc. | Particle size distribution for controlling flow of metal powders melted to form electrical conductors |
| US5419976A (en) * | 1993-12-08 | 1995-05-30 | Dulin; Bruce E. | Thermal spray powder of tungsten carbide and chromium carbide |
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