26-12-2019 дата публикации
Номер: CA3104812A1
Принадлежит:
The current invention concerns a method for plasma coating an object comprising an object profile, comprising the steps of:a) manufacturing a replaceable shield (2) comprising a jet inlet (22), a nozzle outlet (24) and a sidewall (21) extending from the jet inlet to the nozzle outlet, wherein the nozzle outlet comprises an edge (25) essentially congruent to at least part of the object profile; b) detachably attaching the replaceable shield to a jet outlet of a plasma jet generator; c) placing the object at the nozzle outlet such that the object profile fits closely to the nozzle outlet edge, thereby minimizing a gap between the nozzle outlet and the object; d) plasma coating the object with a low-temperature, oxygen-free plasma at an operating pressure which is higher than the atmospheric pressure, preferably by at most 10%, by providing a plasma jet in the shield via the plasma jet generator and injecting coating precursors in the plasma jet in the shield, thereby creating said operating ...
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