DE882027C - Nozzle for flame spray devices - Google Patents
Nozzle for flame spray devicesInfo
- Publication number
- DE882027C DE882027C DEB15652A DEB0015652A DE882027C DE 882027 C DE882027 C DE 882027C DE B15652 A DEB15652 A DE B15652A DE B0015652 A DEB0015652 A DE B0015652A DE 882027 C DE882027 C DE 882027C
- Authority
- DE
- Germany
- Prior art keywords
- nozzle
- fuel gas
- gas mixture
- powder
- head piece
- 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
- 239000007921 spray Substances 0.000 title claims description 9
- 239000000843 powder Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 11
- 239000002737 fuel gas Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 1
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004243 E-number Substances 0.000 description 1
- 235000019227 E-number Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Nozzles (AREA)
Description
Flammspritzgeräte zum Spritzen drahtförmigen oder pulverförmigen Spxitzguteis: enthalten neben dein; Zuführungs- und Regelungsorganen für Spritzgut, Sauerstoff und Zerstäuhungsluft als, wichtigstes Teil ein Düsensystem, bei dem die im Zentrum g#e legene Sprit zgutdnse kreisförmig von einer, Brenngasdiüse und: letztere von einer Zerst@äubun!asluft-,düse umgeben! ist.Flame spraying devices for spraying wire-like or powdery Spxitzguteis: included next to your; Feeding and regulating devices for spray material, oxygen and atomization air as, the most important part, a nozzle system in which the one in the center G # e placed syringe nozzle circular from one, fuel gas nozzle and: the latter from surrounded by an atomizing air nozzle! is.
Esi hat sich- neun gezeigt, daU bei Verwendung dieses Düsensystems in Pulverspritzgeräten das Sp@ritzgutpulver teilweise nicht richtig geschmolzen wird. Dass; un!geschmodzene od'e!r nicht genügend- geschmolzene, Pulver prallt vom Spritzgrund ab@ und geht verloren, oder es. verklammert sich nicht in der erforderlichen Weise mit den, dürchigesehmolzenen Anteilen der Spritzschicht. Eine Erhöhung der Wärmeenergie oder eine Verlangsamung der Pulvergeschwindigkeit führt evtl. zu einer- Verdampfung von Spritzgutteilen; also Verlusten, oder zu einer starken Oxydation und :damit Verschlechterung der Spritzschicht. Dieser Unterschied im Schmelzvorganig des drahtförmigen und dies pulverförmigen Spritzgutes. findet seine Erklärung darin, daß der Draht :die durch entsprechende Neigung dien Brenngasgemischhohrungen auf engem Raum konzentrierten Randzonein der Einzilflla,mmen, also, die heißeste Flammenzone passieren muß, während be!i dem breiteren. Pulverstrom nur ein Teil de!s Mateirials. durch diese Zone fließt.It has been shown that this nozzle system is used In powder spraying devices, the spraying material powder was sometimes not properly melted will. That; Un! melted or insufficiently melted powder bounces off Spray base from @ and is lost, or it. is not clinging to the required Way with the, thru-sea-molten parts of the sprayed layer. An increase in Thermal energy or a slowdown in the powder speed may lead to a Evaporation of injection molded parts; thus losses, or to a strong oxidation and: thus deterioration of the sprayed layer. This difference in the melting process of the wire-like and this powdery spray material. finds its explanation in that the wire: the fuel gas mixture holes due to the corresponding inclination In a narrow space, the edge zone was concentrated in the single flames, i.e. the hottest flame zone must happen while the wider one. Powder stream only part of the material. flows through this zone.
Erfindungsgemäß: wurde eine Düse entwickelt, die einte einwandfreie Durchschmelzung de!s; Pulvers, untter besserer Ausnutzung der eirmöglicht. Die zentrische Pulverdüse wurde in ihrem Kopfteil in mehrere auf einer Flächei an.-!geordnete) Öffnungen unterteilt. Zwischen! diesem! sind Brenngas.äus;trittsöffnungen z. B. radial am ,geordnet. Durch diese Anordnung mehrerer Flammen zwischen dien einzeilnen Pulveraus.trittsöffnungen müssen diel Pulverkörner die heißen Randzonen: der Flammen passieren. Man eirreicht auf .diesen Weise eine! gleichmäßige Schmelzung aller durch die Flammenzone fliegenden Pulverkörner.According to the invention: a nozzle was developed which unites flawlessly Melting through de! S; Powder, under better use of what is possible. The centric Powder nozzle was arranged in several on one surface in its head part -!) Divided openings. Between! this one! are Brenngas.äus; outlet openings z. B. radial am, ordered. With this arrangement of several flames between the two lines Powder outlet openings, the powder grains must be the hot edge zones: the flames happen. In this way one achieves a! uniform melting of all through the flame zone flying powder grains.
Die AüstrittsbohTun!gen des. B.renngas:gemisches sind gerade gebohrt und nicht wie bei den üblichen Düsen derartig schräg verlegt, daß sich die Flammenkegel mit ihren heißen! Randzonen in einem engen Feld trefffein. Die lichte Weite der B@renngasgemischbohrungen wird man zweckmäßigerweise nach dem anzuwendenden Brenngas; z. B. Acetylen, . Propan oder und dem Sauerstoff zuführenden Anteil, z. B. reiner Sauerstoff, oder Druckluft, wählen.The exit holes for the gas mixture have just been drilled and not, as with the usual nozzles, inclined so that the flame cones are with their hot! Edge zones in a narrow field meticulously. The clear width of the B @ racing gas mixture bores are expediently according to the fuel gas to be used; z. B. acetylene,. Propane or and the oxygen supplying portion, z. B. purer Choose oxygen or compressed air.
Der Kopfteil der Düse! kann aus dem gleichen edier eiineim vom Düsenkörper verschiedem>en Material hergestellt werden). Um beispielsweise eine ,einstige Wärmeableitung zu erzielen, ist auf einem Stahldüsenkörper ein Kopfteil aus Kupfer oder Messing von Vorteil. Die Spritzgutauslaß@öffnuungen sind evtl. mit Einsätzen aus wärmet- und verschleißfeistem Material zu versehen, wenn bei hochschmeilzendem Spritzgut eine sehr starke Erhitzung des Düsenkopfes: und dadurch bedingt Verzund'erun!g und Verschleiß, eintreten kann.The head part of the nozzle! can be made from the same edier from the nozzle body different material). For example, a former heat dissipation A head part made of copper or brass is to be achieved on a steel nozzle body advantageous. The spray material outlet openings may be equipped with inserts made of heat and wear-resistant material, if the spray material has a high melting point a very strong heating of the nozzle head: and thereby causes scaling and Wear, can occur.
Eine beispielsweise Ausführungsform zeigen die Abb,. i und 2.An example embodiment is shown in Figs. i and 2.
Die zentrale Bohrung zur Pulverzufihrunig 2@ des Düsenkörpers i .ist inn Kopfteil 3 in. eine Anzahl Auslaßöffnungen 4 unterteilt, wodurch der zentrale Spritzgutpulverstrom in eine euts p-rechenid:e Anzahl Einzelströme zerlegt wird. Parallel zu und zwischen diesen Pulverauslässen sind mehrere, im Beispiel zwölf, Austribtsöffnnungeni für das Brenngasgemisch 5 angeordnet, die durch kurze, rechtwinklige Kanäle 6 mit dem de Düse umschließenden; Brenngas:gem.ischzuführungsraum verbunden sind.The central hole to the powder feed 2 @ of the nozzle body i .is In the head part 3 in. A number of outlet openings 4 divided, whereby the central Spray powder flow is broken down into a euts p-calculation: e number of individual flows. Parallel to and between these powder outlets are several, in the example twelve, Austribtsöffnnungeni arranged for the fuel gas mixture 5, which by short, right-angled Channels 6 with the nozzle surrounding the de; Fuel gas: connected to the mixed feed room are.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB15652A DE882027C (en) | 1951-07-03 | 1951-07-03 | Nozzle for flame spray devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB15652A DE882027C (en) | 1951-07-03 | 1951-07-03 | Nozzle for flame spray devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE882027C true DE882027C (en) | 1953-08-03 |
Family
ID=6958549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB15652A Expired DE882027C (en) | 1951-07-03 | 1951-07-03 | Nozzle for flame spray devices |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE882027C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1247909B (en) * | 1957-04-18 | 1967-08-17 | Meteo Inc | Nozzle body for spray guns |
| FR2408392A1 (en) * | 1977-11-15 | 1979-06-08 | Nippon Steel Corp | APPARATUS FOR SPRAYING REFRACTORY POWDER |
| FR2480421A1 (en) * | 1980-04-09 | 1981-10-16 | Do Nii Chernoj Metallurgii | Torch gunning metallurgical furnace linings - by supplying jet of refractory material and annular jets of oxygen and fuel at specific rates |
-
1951
- 1951-07-03 DE DEB15652A patent/DE882027C/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1247909B (en) * | 1957-04-18 | 1967-08-17 | Meteo Inc | Nozzle body for spray guns |
| FR2408392A1 (en) * | 1977-11-15 | 1979-06-08 | Nippon Steel Corp | APPARATUS FOR SPRAYING REFRACTORY POWDER |
| FR2480421A1 (en) * | 1980-04-09 | 1981-10-16 | Do Nii Chernoj Metallurgii | Torch gunning metallurgical furnace linings - by supplying jet of refractory material and annular jets of oxygen and fuel at specific rates |
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