FR2483267A2 - Water based spray painting applicator - preheats water used in auxiliary nozzles for main mixing nozzle - Google Patents
Water based spray painting applicator - preheats water used in auxiliary nozzles for main mixing nozzle Download PDFInfo
- Publication number
- FR2483267A2 FR2483267A2 FR8110288A FR8110288A FR2483267A2 FR 2483267 A2 FR2483267 A2 FR 2483267A2 FR 8110288 A FR8110288 A FR 8110288A FR 8110288 A FR8110288 A FR 8110288A FR 2483267 A2 FR2483267 A2 FR 2483267A2
- Authority
- FR
- France
- Prior art keywords
- paint
- water
- varnish
- auxiliary nozzles
- sprayed
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000002156 mixing Methods 0.000 title description 2
- 238000007592 spray painting technique Methods 0.000 title 1
- 239000003973 paint Substances 0.000 claims abstract description 45
- 239000002966 varnish Substances 0.000 claims abstract description 27
- 239000000654 additive Substances 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 23
- 239000007921 spray Substances 0.000 claims description 19
- 238000010422 painting Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002671 adjuvant Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 235000020354 squash Nutrition 0.000 description 2
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
- 208000012266 Needlestick injury Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229960002887 deanol Drugs 0.000 description 1
- 239000012972 dimethylethanolamine Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 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
- B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
- B05B7/2478—Gun with a container which, in normal use, is located above the gun
-
- 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
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
- B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
- B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
-
- 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
- B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
- B05B7/2472—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device comprising several containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/34—Applying different liquids or other fluent materials simultaneously
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Nozzles (AREA)
Abstract
Description
Procédé de mise en peinture et/ou de vernissage
par pulvérisation au moyen d'un dispositif a
plusieurs buses.Painting and / or varnishing process
by spraying using a device a
several nozzles.
L'invention est relative à un procédé de mise en peinture et/ou vernissage par pulvérisation au moyen d'un dispositif à plusieurs buses. The invention relates to a method of painting and / or varnishing by spraying by means of a device with several nozzles.
Dans la demande de brevet principal 7 836 508 déposée le 27tDécembre 1978 au nom de la demanderesse, on a décrit un procédé de mise en peinture et/ou de vernissage pour l'application par pulvérisation de systèmes de peinture et/ou vernis diluables à l'eau par utilisation d'un dispositif de pulvérisation comportant une buse de pulvérisation principale pour pulvérisation de le peinture.et/ou vernis, ce procédé se caractrisant en ce que l'on pulvérise de l'eau et/ou un solvant et/ou un adjuvant de peinture et/ou vernis et/ou d'autres additifs liquides dans et/ou autour du jet de peinture provenant de la buse principale par au moins une et de préférence deux ou plusieurs buses auxiliaires disposées latéraleent, sans qu'il en résulte un mélange important de la peinture et/ou vernis avec les matières pulvérisées par les buses auxiliaires. In the main patent application 7 836 508 filed on December 27, 1978 in the name of the applicant, a painting and / or varnishing process has been described for the spray application of paint and / or varnish systems dilutable with water. water by using a spray device comprising a main spray nozzle for spraying the paint. and / or varnish, this process being characterized in that water and / or a solvent and / or are sprayed a paint and / or varnish adjuvant and / or other liquid additives in and / or around the paint spray coming from the main nozzle by at least one and preferably two or more auxiliary nozzles arranged laterally, without any a significant mixture of paint and / or varnish results with the materials sprayed by the auxiliary nozzles.
Comme on l'a déjà exposé en détails dans la demande de brevet principal, le comportement à la pulvérisation des peintures et/ou vernis à base d'eau est influencé dans une mesure déterminante par l'humidité de l'air environnant. As already explained in detail in the main patent application, the spraying behavior of water-based paints and / or varnishes is influenced to a decisive extent by the humidity of the surrounding air.
Lorsqu'on pulvérise des peintures et/ou vernis à l'eau, l'évaporation de l'eau conduit non seulement au "séchage" des gouttelettes de peinture, mais à un fort refroidissement de la peinture en raison de la forte enthalpie de l'eau.When spraying paints and / or varnishes with water, the evaporation of water leads not only to the "drying" of the paint droplets, but to a strong cooling of the paint due to the high enthalpy of the 'water.
Chacun de ces deux effets conduit isolément à une forte augmentation de viscosité de la peinture et/ou vernis. Il en résulte que l'on ne peut parvenir à une pellicule de peinture et/ou vernis qui, à ltétat humide, est continue et s'étale bien, qu'à de fortes épaisseurs de couche. Les inclusions d'air et autres constituants volatils contenus dans le revêtement humide peuvent alors, s'il s'agit'de systèmes de peintures thermodurcissables, laisser dans la pellicule, après cuisson, des défauts (piqûres d'aiguilles, bulles). Each of these two effects leads in isolation to a sharp increase in viscosity of the paint and / or varnish. As a result, a film of paint and / or varnish which, in the wet state, is continuous and spreads well, can only be obtained at high layer thicknesses. The inclusions of air and other volatile constituents contained in the wet coating can then, in the case of thermosetting paint systems, leave defects in the film, after baking (needle sticks, bubbles).
Ces deux effets gênants atteignent tout particule èrement les peintures à l'eau à base de dispersions, car l'augmentation de viscosité résultant du séchage et du refroidissement est extrêmement forte en raison du poids moléculaire souvent très élevé des dispersions de résine synthètique utilisées. En outre, l'effet de refroidissement conduit, pour de nombreuses dispersions, à une passage au-dessous de la température minimale de formation de film. Dans un tel cas, les effets de séchage et de refroidissement conduisent non seulement à une mauvaise qualité de surface des pellicules , mais également à une hétérogénéité de la structure interne de la pellicule, qui peut se manifester par des défauts supplementaires, par exernple un mauvais brillant ou des propriétés mécaniques insuffisantes. These two annoying effects are particularly harmful to water-based paints based on dispersions, since the increase in viscosity resulting from drying and cooling is extremely large due to the often very high molecular weight of the synthetic resin dispersions used. In addition, the cooling effect leads, for many dispersions, to a passage below the minimum film-forming temperature. In such a case, the drying and cooling effects lead not only to a poor surface quality of the films, but also to a heterogeneity of the internal structure of the film, which can be manifested by additional defects, for example bad gloss or insufficient mechanical properties.
Dans le procédé par pulvérisation mentionné ci-dessus, la pulvérisation d'un brouillard d'humidite dans le jet de peinture et/ou vernis et autour du jet de peinture à l'aide de buses auxiliaires permet de combattre très efficacement l'effet de séchage; par contre, l'effet de refroidissement subsiste intact et, surtout aux basses températures de l'environment, il peut annihiler l'effet favorable de la pulvérisation d'eau. Ceci d'autant plus que la pulvérisation d'eau exige un apport d'énergie calorifique supplémentaire de la part de l'environment et provoque donc un refroidissement supplémentaire. In the spraying process mentioned above, spraying a mist of moisture into the paint spray and / or varnish and around the paint spray using auxiliary nozzles makes it possible to very effectively combat the effect of drying; on the other hand, the cooling effect remains intact and, especially at low environmental temperatures, it can annihilate the favorable effect of water spraying. This is all the more so since the spraying of water requires an additional supply of heat energy from the environment and therefore causes additional cooling.
On a maintenant trouvé quton pouvait parvenir à une nouvelle amélioration du procédé de la demande de brevet principal lorsqu'on pulvérisait de l'eau chauffée à une température de 30 à 900C par les buses auxiliaires du pistolet de pulvérisation dans le jet des gouttelettes de peinture provenant de la buse principale. It has now been found that a further improvement in the process of the main patent application can be achieved by spraying water heated to a temperature of 30 to 900C by the auxiliary nozzles of the spray gun into the spray of paint droplets. from the main nozzle.
Le présente invention concerne donc un procédé de mise en peinture et/ou- vernissage pour l'application par pulvérisation de systèmes de peinture et/ou vernis diluables à l'eau par utilisation d'un dispositif de pulvérisation comportant une buse de pulvérisation principale pour pulvérisation de la peinture et/ou vernis et dans lequel on pulvérise de l'eau et/ou un solvant et/ou d'autres adjuvants liquides à l'aide d'au moyen une, de préférence deux ou plusieurs buses auxiliaires disposées latéralement dans et/ou autour du jet de peinture et/ou vernis provenant de la buse principale,sans qu'il en résulte un mélange important de la peinture et/ou vernis avec les matières pulvérisées par les buses auxiliaires, conformément à la demande de brevet principal, ce procédé se earactérisant en ce que l'on pulvérise par les buses auxiliaires de l'eau chauffée au préalable à une température de 30 à 90 C. The present invention therefore relates to a method of painting and / or varnishing for the application by spraying of paint systems and / or varnishes dilutable with water by using a spraying device comprising a main spray nozzle for spraying paint and / or varnish and in which water and / or a solvent and / or other liquid additives are sprayed using one, preferably two or more auxiliary nozzles arranged laterally in and / or around the spray of paint and / or varnish coming from the main nozzle, without resulting in a significant mixing of the paint and / or varnish with the materials sprayed by the auxiliary nozzles, in accordance with the main patent application , this process is earactérisant in that one pulverizes by the auxiliary nozzles water pre-heated to a temperature of 30 to 90 C.
On a constaté qu'un chauffage de l'eau,qui sera pulvérisee simultanément à une température de 30 à 900C conduisait à une amélioration déterminante du procédé de pulvérisation décrit dans la demande de brevet principal car dans ce cas, la chaleur de vaporisation n'est pas prélevée sur ltenvironment, mais sur l'eau ainsi pulvérisée. Ainsi donc,lorsque c' est nécessaire, l'eau pulvérisée peut être utilisée non seulement comme source d'énergie pour sa propre vaporisation, mais également pour apporter de la chaleur à la peinture sortant du pistolet, ce par quoi, dans certains cas, on parvient à une nouvelle amélioration de la qualité de la pellicule. It has been found that heating the water, which will be sprayed simultaneously at a temperature of 30 to 900 ° C., leads to a decisive improvement in the spraying process described in the main patent application because in this case, the heat of vaporization does not is not taken from the environment, but from the water sprayed. Thus, when necessary, the water spray can be used not only as an energy source for its own spraying, but also to provide heat to the paint coming out of the spray gun, which, in some cases, a further improvement in the quality of the film is achieved.
L'eau pulvérisée peut être chauffée soit dans le réservoir d'eau, soit dans ca circulation depuis le réservoir jusqu'au pistolet, soit dans le pistolet luimème. Un autre mode de réalisation consiste è régler la température de l'eau pulvérisée en fonction de la température de l'environment et/ou de la température de la peinture et/ou vernis, et/ou de la température de l'air de pulvérisation et/ou de l'humidité de l'air, etc. par des techniques électroniques. The sprayed water can be heated either in the water tank, or in the circulation from the tank to the gun, or in the gun itself. Another embodiment consists in adjusting the temperature of the sprayed water as a function of the temperature of the environment and / or of the temperature of the paint and / or varnish, and / or of the temperature of the spraying air. and / or air humidity, etc. by electronic techniques.
La différence essentielle entre le procédé selon l'invention et les procedés de pulvérisation à chaud connus et souvent utilisés dans le domaine des peintures et/ou vernis réside en ce que, dans ce dernier cas, toute la peinture et/ou vernis est chauffée ealors que dans le procédé selon l'invention, seule l'eau pulvérisée est chauffée. Comparativement au pro ~dé antérieur de pulvérisation à chaud, le procédé selon l'invention présente alors trois avantages essentiels:
a) on evite un chauffage souvent nuisible, de la peinture et/ou vernis
b) dans le procédé de pulvérisation à chaud, les difficultés mentionnés s en introduction, relativement à la formation de la pellicules, sont certes amoindries mais non totalement éliminées car la peinture chauffee se refroidit après sortie de la buse de pistolet. Dans le procédé selon l'invention, l'apport d'énergie calorifique n'est réalisé qu'après la sortie du jet de la peinture de la buse principale et empêche si un refroidissement de la peinture et /ou vernis sur le trajet vers le support.The essential difference between the process according to the invention and the known hot spraying processes which are often used in the field of paints and / or varnishes is that, in the latter case, all the paint and / or varnish is heated then that in the process according to the invention, only the sprayed water is heated. Compared to the previous pro ~ hot spraying, the method according to the invention then has three essential advantages:
a) avoiding often harmful heating, paint and / or varnish
b) in the hot spraying process, the difficulties mentioned in the introduction, relative to the formation of the films, are certainly lessened but not completely eliminated because the heated paint cools after leaving the gun nozzle. In the process according to the invention, the supply of heat energy is only carried out after the paint jet has left the main nozzle and prevents if the paint and / or varnish cools down on the way to the support.
c) comparativement au procédé de pulvérisation à chaud, la consommation d'énergie est beaucoup plus faible dans le procédé selon l'invention, car la quantité d'eau pulverisée représente au maximum 25 %, de préférence 10 à 20 % du poids de la quantité de peinture et/ou vernis. c) compared to the hot spraying process, the energy consumption is much lower in the process according to the invention, since the quantity of water sprayed represents at most 25%, preferably 10 to 20% of the weight of the amount of paint and / or varnish.
L'exemple qui suit illustre l'invention sans toutefois en limiter la portée; dans cet exemple, les indications de parties et de % s'entendent en poids sauf mention contraire. The following example illustrates the invention without, however, limiting its scope; in this example, the parts and% indications are by weight unless otherwise stated.
Exemple.Example.
Dans cet exemple, on met en évidence la supériorité du procédé selon l'invention sur le procédé usuel de pulvérisation et sur le procédé de pulvérisation de la demende de brevet principal en référence à un système de peinture et/ou vernis en dispersion du type utilisé dans la pratique pur l'application des revêtements sur les automobiles. In this example, the superiority of the process according to the invention is demonstrated over the usual spraying process and over the spraying process of the main patent application with reference to a dispersion paint and / or varnish system of the type used. in practice for the application of coatings on automobiles.
On utilise une peinture de finition, se' chant au four, rouge, en dispersion, du commerce, pour laquelle on a indiqué les caractéristiques ci-après:
Teneur en matières solides: environ 50 % en poids
Viscosité DIN 53 211/200C: 30 à 40 s pH : environ 8,6 (réglé a l'aide
d'une solution aqueuse a
10 ffi de diméthyléthanol
amine)
Rapport liant/pigment: 1 : 0,44
Liant: 55 d,, d'une dispersion
acrylique
25 % d'un polymère acry
lique préparé en solution
20 % d'un condensat méla
mine-formaldéhwrde éthéri
fié au méthanol)
Pigment: pigments organiques rouges
Conditions d'application:
Viscosité à la pulvérisation (DIN 53 211/200C) : 20 à 25 s, diluant: eau
déminéralisée
Teuneur en matières solides à la viscosité de pulvérisation: environ 48 ffi
Conditions de séchage et de cuisson: 5 min à température
ambiente
30 mn à 1500C. We use a finish paint, oven-edged, red, in dispersion, commercial, for which the following characteristics have been indicated:
Solid content: about 50% by weight
Viscosity DIN 53 211 / 200C: 30 to 40 s pH: about 8.6 (adjusted using
of an aqueous solution a
10 ffi of dimethylethanol
amine)
Binder / pigment ratio: 1: 0.44
Binder: 55 d, of a dispersion
acrylic
25% of an acry polymer
lique prepared in solution
20% of a mela condensate
ethereal mine-formaldehwrde
methanol)
Pigment: red organic pigments
Application conditions:
Spray viscosity (DIN 53 211 / 200C): 20 to 25 s, thinner: water
demineralized
Solid solder at spray viscosity: around 48 ffi
Drying and cooking conditions: 5 min at temperature
ambient
30 min at 1500C.
Cette peinture a e'été appliqué par pulvérisation dans des conditions opératoires variées à l'aide d'un pistolet de type SATA GR/Z modifié selon la demande de brevet principal, avec deux buses auxiliaires latérales et symétriques. This paint was applied by spraying under various operating conditions using a SATA GR / Z type spray gun modified according to the main patent application, with two lateral and symmetrical auxiliary nozzles.
Buse de vernis: 1 mm diamètre
Apport de painture: par le reservoir sous
pression
Pression de travail: environ 25 KPa
Apport de peinture: vis de réglage arrière
ouverte d'un tour et demi
Apport d'air: vis de réglage avant
ouverte d'un tour
Pression de l'air comprimé: environ 500 kPa
Support: tôle d'acier
Les autres conditions opératoires et les résultats obtenus sont rapportés dans le tableau ei-après:
A B C D E F G
1 38 18 0 -- 40 47
2 60 27 0 -- 40 72 4
3 38 27 160 18 35 53 7s M
4 60 27 160 18 35 75 2-3
5 38 18 100 30 35 65 5
6 38 18 200 30 35 82 1-2
7 38 18 100 50 35 80 1-2
8 38 18 150 50 35 82 1-2
A : humidité relative de l'air dans la cabine de pulvéri
station ,%
B : température dans la cabine de pulvérisation, OC
C : quantité d'eau pulvérisée, g/lpOO g de peinture
D : température de l'eau pulvérisée, C
E : épaisseur de couche (pellicule sèche, microns)
F : brillant, mesuré au goniophotomètre à 200, ouver
ture de mesure = ouverture d'éclairage = 0,60;
valeurs en % par rapport au verre noir normal,
n = 1,567
G : appréciation de ltétalement
1 = très bon
10 = très mauvais
M = micropores Varnish nozzle: 1 mm diameter
Paint supply: by the tank under
pressure
Working pressure: about 25 KPa
Addition of paint: rear adjustment screw
open one and a half turns
Air intake: front adjustment screw
open one turn
Compressed air pressure: about 500 kPa
Support: sheet steel
The other operating conditions and the results obtained are reported in the table below:
ABCDEFG
1 38 18 0 - 40 47
2 60 27 0 - 40 72 4
3 38 27 160 18 35 53 7s M
4 60 27 160 18 35 75 2-3
5 38 18 100 30 35 65 5
6 38 18 200 30 35 82 1-2
7 38 18 100 50 35 80 1-2
8 38 18 150 50 35 82 1-2
A: relative humidity of the air in the spray booth
station,%
B: temperature in the spray booth, OC
C: amount of water sprayed, g / lpOO g of paint
D: temperature of the water sprayed, C
E: layer thickness (dry film, microns)
F: bright, measured with a goniophotometer at 200, open
measuring ture = light opening = 0.60;
values in% compared to normal black glass,
n = 1.567
G: appreciation of the spread
1 = very good
10 = very bad
M = micropores
Claims (2)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT930377A AT355161B (en) | 1977-12-27 | 1977-12-27 | PAINT PROCESS |
| AT281880A AT365481B (en) | 1980-05-28 | 1980-05-28 | PAINT PROCESS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2483267A2 true FR2483267A2 (en) | 1981-12-04 |
| FR2483267B2 FR2483267B2 (en) | 1984-01-27 |
Family
ID=25599120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8110288A Granted FR2483267A2 (en) | 1977-12-27 | 1981-05-22 | Water based spray painting applicator - preheats water used in auxiliary nozzles for main mixing nozzle |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2483267A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0113537A1 (en) * | 1982-12-13 | 1984-07-18 | Willett International Limited | Method of applying an adhesive composition |
| FR2838987A1 (en) * | 2002-04-30 | 2003-10-31 | Valeo Vision | METHOD OF APPLYING A VARNISH COMPRISING A SOLVENT OR NOT ON A PART, IN PARTICULAR A VEHICLE PROJECTOR REFLECTOR |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1242480A (en) * | 1958-12-05 | 1961-01-04 | Omac | Gun for the simultaneous micro-spraying of several separate liquids (paints, varnishes or similar liquids), using compressed air |
| FR1268377A (en) * | 1960-09-28 | 1961-07-28 | Devilbiss Co | Spray gun for coating objects with liquids which react chemically with one another |
| DE1546989A1 (en) * | 1961-05-10 | 1970-10-29 | Ici Ltd | Paints and method of applying the same |
| US3857511A (en) * | 1973-07-31 | 1974-12-31 | Du Pont | Process for the spray application of aqueous paints by utilizing an air shroud |
| GB1427337A (en) * | 1972-11-01 | 1976-03-10 | Casco Ab | Spraying of curable adhesives |
-
1981
- 1981-05-22 FR FR8110288A patent/FR2483267A2/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1242480A (en) * | 1958-12-05 | 1961-01-04 | Omac | Gun for the simultaneous micro-spraying of several separate liquids (paints, varnishes or similar liquids), using compressed air |
| FR1268377A (en) * | 1960-09-28 | 1961-07-28 | Devilbiss Co | Spray gun for coating objects with liquids which react chemically with one another |
| DE1546989A1 (en) * | 1961-05-10 | 1970-10-29 | Ici Ltd | Paints and method of applying the same |
| GB1427337A (en) * | 1972-11-01 | 1976-03-10 | Casco Ab | Spraying of curable adhesives |
| US3857511A (en) * | 1973-07-31 | 1974-12-31 | Du Pont | Process for the spray application of aqueous paints by utilizing an air shroud |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0113537A1 (en) * | 1982-12-13 | 1984-07-18 | Willett International Limited | Method of applying an adhesive composition |
| FR2838987A1 (en) * | 2002-04-30 | 2003-10-31 | Valeo Vision | METHOD OF APPLYING A VARNISH COMPRISING A SOLVENT OR NOT ON A PART, IN PARTICULAR A VEHICLE PROJECTOR REFLECTOR |
| EP1358947A1 (en) * | 2002-04-30 | 2003-11-05 | Valeo Vision | Process for applying on a support a varnish comprising or not a solvent, especially on a vehicle headlamp reflector |
| US6773761B2 (en) | 2002-04-30 | 2004-08-10 | Valeo Vision | Method of applying a varnish to a component, in-particular to a vehicle headlight reflector |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2483267B2 (en) | 1984-01-27 |
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