摘要:
A deposition support apparatus (20) and method (100) for coating a component (10), the deposition support apparatus (20) including a mask container (22) defining an interior (30) and having an opening (34) providing access to the interior (30). A barrier plate (36) with a component aperture (38) wherein the component (10) extends through the component aperture (38) with a first portion (54) of the component (10) located within the interior (30) and a second portion (56) of the component (10) extending above the at least one barrier plate (36).
摘要:
The present invention is related to a method for applying a hydrophilic coating on a substrate, said method comprising the steps of : - providing a substrate (1), - producing an atmospheric pressure plasma discharge in the presence of a gas, - at least partially exposing the substrate to said atmospheric pressure plasma discharge, - introducing a liquid aerosol (6) or a vapour of coating forming material into said atmospheric pressure plasma discharge, thereby forming a coating on the substrate, characterized in that said coating forming material comprises a non-polymerizable acetate derivative. According to the preferred embodiment, said acetate derivative is ethyl acetate.
摘要:
Es wird eine Halterung (1) zum Halten eines metallischen Bauteils (3), welches wenigstens einen über eine Öffnung (6) in einer Außenfläche (8) des Bauteils (3) zugänglichen internen Kanal (4) aufweist, zur Verfügung gestellt. Die Halterung ist ausgestattet mit - einem Lagerelement (5), welches eine Lagerfläche (11) umfasst, die derart ausgestaltet ist, dass sie ein Aufsetzen des Bauteils (3) auf das Lagerelement (5) zulässt und dabei wenigstens einem Teil der die Öffnung (6) aufweisenden Außenfläche (8) des Bauteils (1) als Auflage dient, und - einem durch das Lagerelement (5) hindurchführenden Strömungskanal (7) mit wenigstens einer in der Lagerfläche (11) angeordneten Austrittsöffnung (15). Die Austrittsöffnung (15) ist derart in der Lagerfläche (11) angeordnet ist, dass sie bei aufgesetztem Bauteil (3) der Öffnung des internen Kanals (4) gegenüber liegt. Außerdem ist die Austrittsöffnung (15) in Form und Strömungsquerschnitt an die Öffnung (6) des internen Kanals (4) angepasst.
摘要:
Au moins un précurseur gazeux du dépôt à réaliser comprenant un composé de l'aluminium est amené avec l'aide d'un gaz porteur au contact des surfaces de la pièce disposée dans une enceinte (21). Le gaz porteur est choisi parmi l'hélium et l'argon et la pression dans l'enceinte est choisie de manière que le libre parcours moyen des molécules de gaz porteur soit au moins deux fois supérieur à celui des molécules d'argon sous pression atmosphérique. Le procédé convient notamment pour l'aluminisation de secteur d'anneau de turbine basse pression d'une turbomachine, muni d'un revêtement abradable en nid d'abeilles.
摘要:
This invention relates generally to the field of light weight heat exchangers useful for operation in excess 950 °F and more particularly to titanium metal based heat exchangers. The light weight titanium based metal heat exchanger can be coated with an aluminum coating that is subsequently converted to a titanium aluminide surface and can operate as a heat exchanger at temperatures up to 1450 °F. A solgel coating can be applied as a wash coat over the titanium or the titanium aluminide surface to inhibit further oxidation and provides additional protection against scratching damage during handling. These oxidation resistant coatings may also be applied to the braze clad titanium.
摘要:
A method is disclosed to deposit aluminum and a metal oxide on substrates for improved corrosion, oxidation, and erosion protection. Low temperature chemical vapor deposition is used. A homogeneous biphase coating may be deposited, as well as layers of aluminum and metal oxides.
摘要:
The present invention relates to a coated cutting tool consisting of a substrate of cemented carbide, cermet, ceramics, steel or a superhard material such as cubic boron nitride (CBN) at least partially coated with a coating consisting of at least one outer layer of 5 to 35 µm, thick α-Al 2 O 3 layer deposited by chemical vapour deposition (CVD) on an inner layer of 2-25 µm thick Ti(C,N) or TaC 1-x N x or combinations thereof wherein the said α-Al 2 O 3 exhibits an X-ray diffraction pattern, as measured using CuK α radiation and theta-2theta scan, and texture coefficients TC(hkl) being determined according to Harris formula with one dominant texture coefficient 4,5 2 S/CO 2 ratio. The alumina layer is characterized by improved textures and by high growth rates together with improved wear resistance and toughness.
摘要:
The present invention relates to a coated cutting tool consisting of a substrate of cemented carbide, cermet, ceramics, steel or a superhard material such as cubic boron nitride (CBN) at least partially coated with a coating consisting of at least one outer layer of 2 to 10 µm, preferably 3 to 6 µm, thick α-Al 2 O 3 layer deposited by chemical vapour deposition (CVD) on an inner layer of 0.5-20 µm thick, preferably 4 to 8.5 µm thick Ti 1-x Al x N, Ti 1-x Al x CN or TaC 1-x N x or combinations thereof wherein the said α-Al 2 O 3 exhibits an X-ray diffraction pattern, as measured using CuK α radiation and theta-2theta scan, and texture coefficients TC(hkl) being determined according to Harris formula with one dominant texture coefficient 4 2 S/CO 2 ratio. The α-Al 2 O 3 layer is deposited in a temperature range of 600-800 °C being particularly useful in facilitating deposition of α-Al 2 O 3 layers on metastable materials like cubic Ti 1-x Al x N. The deposition process is characterized by improved texture-control and by relatively very high growth rates.