GB663222A - A method for coating surfaces - Google Patents
A method for coating surfacesInfo
- Publication number
- GB663222A GB663222A GB336549A GB336549A GB663222A GB 663222 A GB663222 A GB 663222A GB 336549 A GB336549 A GB 336549A GB 336549 A GB336549 A GB 336549A GB 663222 A GB663222 A GB 663222A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- mixture
- air
- powder
- stream
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1463—Arrangements for supplying particulate material the means for supplying particulate material comprising a gas inlet for pressurising or avoiding depressurisation of a powder container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
- B05B7/20—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion
- B05B7/201—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle
- B05B7/205—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle the material to be sprayed being originally a particulate material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
<PICT:0663222/III/1> <PICT:0663222/III/2> <PICT:0663222/III/3> Surfaces are coated by means of a spraying pistol in which a powder of the coating material is conveyed by a stream of non - oxidizing gas, through an inner passage in the pistol; a combustible gas mixture is passed through an intermediate passage surrounding such inner passage; and a stream of high velocity air is passed through an outer passage surrounding the intermediate passage and having a converging outlet; the temperature of the flame produced by burning the combustible gas mixture and the velocity of the particles of powder being such as to cause such particles to become molten or plastic; and the stream of air moving at a sufficiently high velocity to project the molten or plastic particles on to the surface to be coated. The combustible gas mixture may be a mixture of oxygen, air or other oxygen containing gas and a fuel gas such as coal gas, acetylene, propane or butane or a mixture of or containing these gases; the non-oxidising gas may be a combustible gas such as coal gas or an inert gas such as nitrogen, helium or argon or may be partially burnt coal gas or producer gas; and the substance sprayed may be copper, zinc, aluminium, magnesium or alloys thereof, sulphur or natural or synthetic resins such as shellac or polythene. In the pistol shown, Fig. 1, a non-oxidizing gas carrying the powder to be sprayed is fed at 21 and passes at low pressure to the central bore 22 of the spray nozzle. A combustible gas supplied at 26 and oxygen supplied at 24 are mixed in the chamber 27, shown in detail in Fig. 2, and pass to the chamber 31 and flutes 9 at the outlet of which the mixture burns as an annular flame. Compressed air is supplied at 32, passing to the chamber 35 and emerging at high velocity through flutes 12, the air supply being controlled by a button 48 operating a springloaded valve. The powder is fed to the stream of non-oxidizing gas by a device similar to that described in Specification 644,280, [Group XXIX], the flow of conveying gas and entrained powder being controlled by the mechanism shown in Fig. 5 wherein non-oxidizing gas is fed to a chamber 67 at 66 and leaves through an aperture 69 controlled by a valve 68 connected to an adjustably spring-pressed diaphragm 71 actuated by the pressure of air from a conduit 72 connected to the air supply conduit 32 of the pistol. Specification 432,831, [Group II], also is referred to.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB336549A GB663222A (en) | 1949-02-07 | 1949-02-07 | A method for coating surfaces |
FR996422D FR996422A (en) | 1949-02-07 | 1949-09-30 | Process for coating surfaces |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB336549A GB663222A (en) | 1949-02-07 | 1949-02-07 | A method for coating surfaces |
Publications (1)
Publication Number | Publication Date |
---|---|
GB663222A true GB663222A (en) | 1951-12-19 |
Family
ID=9756947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB336549A Expired GB663222A (en) | 1949-02-07 | 1949-02-07 | A method for coating surfaces |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR996422A (en) |
GB (1) | GB663222A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1300763B (en) * | 1964-01-03 | 1969-08-07 | Berk Ltd | Method and apparatus for flame spraying powdery material, e.g. B. metal powder |
DE2029989A1 (en) * | 1969-05-26 | 1971-01-07 | Metco Ine . Westbury, N.Y. (VSt A) | Method for flame spraying and device for its implementation |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2743567C2 (en) * | 1977-09-28 | 1984-12-13 | Castolin S.A., Lausanne, St. Sulpice, Vaud | Burner nozzle for flame sprayers |
DE4305896A1 (en) * | 1993-02-26 | 1994-09-01 | Utp Schweissmaterial | Pressure compensation chamber with insert element |
-
1949
- 1949-02-07 GB GB336549A patent/GB663222A/en not_active Expired
- 1949-09-30 FR FR996422D patent/FR996422A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1300763B (en) * | 1964-01-03 | 1969-08-07 | Berk Ltd | Method and apparatus for flame spraying powdery material, e.g. B. metal powder |
DE2029989A1 (en) * | 1969-05-26 | 1971-01-07 | Metco Ine . Westbury, N.Y. (VSt A) | Method for flame spraying and device for its implementation |
Also Published As
Publication number | Publication date |
---|---|
FR996422A (en) | 1951-12-19 |
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