DE1265630B - Flame spray gun, especially for oxide ceramic powders - Google Patents
Flame spray gun, especially for oxide ceramic powdersInfo
- Publication number
- DE1265630B DE1265630B DEM51744A DEM0051744A DE1265630B DE 1265630 B DE1265630 B DE 1265630B DE M51744 A DEM51744 A DE M51744A DE M0051744 A DEM0051744 A DE M0051744A DE 1265630 B DE1265630 B DE 1265630B
- Authority
- DE
- Germany
- Prior art keywords
- powder
- oxygen
- spray gun
- flame spray
- ceramic powders
- 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.)
- Pending
Links
- 239000000843 powder Substances 0.000 title claims description 25
- 239000007921 spray Substances 0.000 title claims description 8
- 229910052574 oxide ceramic Inorganic materials 0.000 title claims description 4
- 239000011224 oxide ceramic Substances 0.000 title claims description 4
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 4
- 210000002445 nipple Anatomy 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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
- B05B7/16—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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
- G01J2003/1213—Filters in general, e.g. dichroic, band
- G01J2003/1217—Indexed discrete filters or choppers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/74—Optical detectors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Nozzles (AREA)
Description
Flammspritzpistole, insbesondere für oxydkeramische Pulver Es ist eine Düse für Flammspritzpistolen zum Spritzen pulverförmiger Stoffe bekannt, bei der eine beliebig große Anzahl Austrittslöcher für den von einem Transportgas getragenen pulverförmigen Stoff vorgesehen ist, wobei diese Austrittslöcher von einer ebenfalls beliebig großen Zahl von Brenngasgemisch-Austrittsöffnungen zur Flammenbildung umgeben sind. Durch diese Anordnung sollen die Pulverkörner die wärmeintensiven Randzonen durchlaufen und so gleichmäßig erwärmt werden (deutsche Patentschrift 882027). Flame spray gun, in particular for oxide-ceramic powder A nozzle for flame spray guns for spraying powdery substances is known, in which any large number of outlet holes is provided for the powdery substance carried by a transport gas, these outlet holes also being connected to an arbitrarily large number of fuel gas mixture outlet openings Flames are surrounded. With this arrangement, the powder grains should pass through the heat-intensive edge zones and thus be heated evenly (German patent specification 882027).
Gegenstand der Erfindung bildet eine Pulver-Flammspritzpistole, insbesondere für keramische Werkstoffe, der die gleiche Aufgabe eines intensiven Wärmeübergangs auf die Pulverkörper zugrunde liegt.The invention relates to a powder flame spray gun, in particular for ceramic materials that perform the same task of intensive heat transfer based on the powder body.
Nach der Erfindung wird eine Flammspritzpistole beschrieben, insbesondere für oxydkeramische Pulver, bei der das Pulver durch einen Injektorkegel mit Sauerstoff angesaugt und mit einem Gas-Sauerstoff-Gemisch in einer koaxial im Pulveraustritt angeordneten Brennerdüse aufgeheizt wird, wobei zur Führung des Sauerstoff-Pulver-Gemisches mehrere Bohrungen im rückwärtigen Pistolenkörper vorgesehen sind, die auf ein um den Fußblock der Brennerdüse angeordnetes Verteilerorgan gerichtet sind.According to the invention, a flame spray gun is described, in particular for oxide-ceramic powders, in which the powder is filled with oxygen through an injector cone sucked in and with a gas-oxygen mixture in a coaxially in the powder outlet arranged burner nozzle is heated, whereby to guide the oxygen-powder mixture several holes are provided in the rear gun body, which lead to a the foot block of the burner nozzle arranged distribution organ are directed.
An Hand der Zeichnung wird die erfindungsgemäße Flammspritzpistole näher erläutert.The flame spray gun according to the invention is illustrated using the drawing explained in more detail.
F i g. 1 zeigt einen Querschnitt durch den gesamten Aufbau der Flammspritzpistole nach der Schnittlinie 1-I der F i g. 2; F i g. 2 zeigt in Vorderansicht nach der Schnittlinie 11-II der F i g. 1 die Anordnung der Kanäle für die Pulver- und Gaszuführung.F i g. 1 shows a cross section through the entire structure of the flame spray gun according to the section line 1-I of FIG. 2; F i g. 2 shows in front view according to FIG Section line 11-II of FIG. 1 shows the arrangement of the channels for the powder and gas supply.
Mit 1 ist der Pistolenkörper, mit 2 ein aufgeschraubter Mantel (Strahldüse) und mit 3 das ebenfalls abnehmbare Kopfstück (Strahlkopf der Pistole) bezeichnet. Innerhalb dieser an sich bekannten abnehmbaren Hülsen befindet sich die ebenfalls bekannte Brennerdüse 4, die durch eine Mutter 5 auf einen Sockel 6 des Körpers 1 aufgeschraubt werden kann. Die Verbrennungsmedien . (Sauerstoff und Azetylen) werden der Brennerdüse 4 in ebenfalls bekannter Weise dem Ringkanal durch die Zufuhrleitungen 8 und 9 (letzter im Handgriff 10) zugeführt. Wie aus F i g. 2 ersichtlich, zweigen zweckmäßig zwei Gaszufuhrleitungen 8 von der Hauptleitung 9 zu den Ringkanälen 7 ab. Am unteren Ende der Leitung 9 befindet sich der Injektorkege111, in den Sauerstoff durch das Ventil 12 und die Anschlußnippe113 und Gas über das Ventil 14 durch den Anschlußnippel 15 zugeführt wird. Durch den dritten Anschlußnippel 16 im Schaft des Handgriffes wird ebenfalls Sauerstoff unter Druck zugeführt, durch das Ventil 17 regelbar der inneren Leitung des Injektorkegels 18 weitergeleitet und hier mit dem durch die Leitung 19 zugeführten Pulver innig vermischt. Das Sauerstoff-Pulver-Gemisch gelangt über die Leitung 20 und die beiden Nippel 22 mit dem aus Kunststoff bestehenden Zwischenstück 21 in die Bohrung 23 im Pistolenkörper 1 und wird hier über eine quer verlaufende Bohrung 24, vorteilhaft zwei oder mehreren Bohrungen 25 in axialer Richtung des Pistolenkörpers dem Fuß der Brennerdüse außerhalb desselben verteilt, wie dies aus F i g. 2 ersichtlich ist. Hier befindet sich ein Verteilerorgan 26, beispielsweise in Form einer aufgebogenen Verteilerscheibe, die um den Block 6 der Brennerdüse 4 herum angeordnet ist, die aufschraubbar sein kann. Durch dieses Verteilerorgan 26 werden die hier austretenden Sauerstoff-Pulver-Ströme an die Wandungen der Hülse 4 geschleudert und in regelbar dünner Schicht (je nach dem Abstand der Ränder des Verteilerkörpers 26 von den Wandungen der Hülsen 2) nach dem Mundstück der Pistole befördert. Die durch die Brennerdüse austretenden heißen Verbrennungsgase erfassen den Pulverschleier durch die an dieser Stelle eintretende Injektorwirkung und durchdringen den Schleier vollständig, da der aufschraubbare Konus 3 des Pistolenmundstückes den Pulverstrom in den Flammstrahl drückt. Die Brennerdüse 4 besitzt infolge der neuartigen Pulverzuführung abweichend von den bisher üblichen Konstruktionen keine mittleren Bohrungen für das Pulver, sondern nur auf einem Lochkranz angeordnete Bohrungen (etwa sechs). Da der Strahlkopf 3 in axialer Richtung verstellbar ist, kann der Austrittsquerschnitt des Flammstrahles beliebig eingeengt oder erweitert werden.1 with the gun body, with 2 a screwed-on jacket (jet nozzle) and with 3 the also removable head piece (jet head of the gun). Inside these removable sleeves, which are known per se, there is the also known burner nozzle 4, which can be screwed onto a base 6 of the body 1 by means of a nut 5. The combustion media. (Oxygen and acetylene) are fed to the burner nozzle 4 in a known manner through the feed lines 8 and 9 (the last one in the handle 10) to the annular channel. As shown in FIG. 2, two gas supply lines 8 appropriately branch off from the main line 9 to the ring channels 7. At the lower end of the line 9 is the injector cone 111, into which oxygen is supplied through the valve 12 and the connection nipple 113 and gas via the valve 14 through the connection nipple 15. Oxygen is also supplied under pressure through the third connection nipple 16 in the shaft of the handle, passed on to the inner line of the injector cone 18 in a controllable manner through the valve 17 and intimately mixed here with the powder supplied through the line 19. The oxygen-powder mixture reaches the bore 23 in the gun body 1 via the line 20 and the two nipples 22 with the intermediate piece 21 made of plastic and is here via a transverse bore 24, advantageously two or more bores 25 in the axial direction of the Gun body distributed to the foot of the torch nozzle outside the same, as shown in FIG. 2 can be seen. Here there is a distributor member 26, for example in the form of an upturned distributor disk, which is arranged around the block 6 of the burner nozzle 4 and which can be screwed on. Through this distributor element 26, the oxygen-powder streams exiting here are thrown against the walls of the sleeve 4 and conveyed in an adjustable thin layer (depending on the distance between the edges of the distributor body 26 and the walls of the sleeves 2) to the mouthpiece of the gun. The hot combustion gases emerging through the burner nozzle capture the powder veil by the injector effect occurring at this point and penetrate the veil completely, as the screw-on cone 3 of the gun mouthpiece pushes the powder flow into the flame jet. As a result of the novel powder feed, the burner nozzle 4 has no central bores for the powder, but only bores (about six) arranged on a perforated ring, which differs from the conventional designs. Since the jet head 3 is adjustable in the axial direction, the exit cross-section of the flame jet can be narrowed or expanded as desired.
Durch die neuartige Pulverzuführung und -mischung mit Sauerstoff wird eine höhere Leistung gegenüber den bisherigen Pulverpistolen und auch eine höhere Flammentemperatur bzw. höhere Erhitzung der Pulverkörner erreicht, so daß Stoffe wie Zirkonoxyd- und Aluminiumoxydpulver gespritzt werden können.The innovative powder supply and mixing with oxygen a higher performance compared to the previous powder guns and also one higher flame temperature or higher heating of the powder grains reached, so that Substances such as zirconium oxide and aluminum oxide powder can be sprayed.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM51744A DE1265630B (en) | 1962-02-08 | 1962-02-08 | Flame spray gun, especially for oxide ceramic powders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM51744A DE1265630B (en) | 1962-02-08 | 1962-02-08 | Flame spray gun, especially for oxide ceramic powders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1265630B true DE1265630B (en) | 1968-04-04 |
Family
ID=7307231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM51744A Pending DE1265630B (en) | 1962-02-08 | 1962-02-08 | Flame spray gun, especially for oxide ceramic powders |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1265630B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2600295A1 (en) * | 1975-01-09 | 1976-07-15 | Castolin Sa | SAFETY DOUBLE INJECTOR BURNER |
| FR2533020A1 (en) * | 1982-09-13 | 1984-03-16 | Siderurgie Fse Inst Rech | HOT TUNNEL NOZZLE |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2389702A (en) * | 1943-04-01 | 1945-11-27 | Haynes Stellite Co | Apparatus for treating metal articles |
| US2786779A (en) * | 1953-02-09 | 1957-03-26 | Dewrance & Co | Method and apparatus for powdered metal deposition by oxy-fuel gas flame |
-
1962
- 1962-02-08 DE DEM51744A patent/DE1265630B/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2389702A (en) * | 1943-04-01 | 1945-11-27 | Haynes Stellite Co | Apparatus for treating metal articles |
| US2786779A (en) * | 1953-02-09 | 1957-03-26 | Dewrance & Co | Method and apparatus for powdered metal deposition by oxy-fuel gas flame |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2600295A1 (en) * | 1975-01-09 | 1976-07-15 | Castolin Sa | SAFETY DOUBLE INJECTOR BURNER |
| FR2533020A1 (en) * | 1982-09-13 | 1984-03-16 | Siderurgie Fse Inst Rech | HOT TUNNEL NOZZLE |
| EP0103515A1 (en) * | 1982-09-13 | 1984-03-21 | Institut De Recherches De La Siderurgie Francaise (Irsid) | Nozzle for hot guniting |
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