COMPRESSOR BLADE FOR ENGINE HAVING ANTICORROSIVE COATING, AND COATING METHOD THEREFOR

• Main Authors: BABA MASANOBU, ODERA KAZUO, SAKAMOTO NAOKI, ARAKI TAKAHITO, SUGIYAMA YUICHI, KAKINUMA KAZUHIKO, TANAKA YUUTAI
• Format: Patent
• Language: English; Japanese
• Published: 25.05.2017
• Subjects: BLASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; HEATING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; WEAPONS

PROBLEM TO BE SOLVED: To solve the problem that corrosion resistivity is different according to a coating method even in the case of the same material.SOLUTION: In a coating method for coating a compressor blade for an engine, actuation gas containing nitrogen is introduced into a chamber of an arc ion plating device, and discharge is generated by using a titanium-aluminum alloy as a cathode in the chamber, and a coating is formed by applying an initial bias voltage in the range of -32 to -42 V in comparison with the cathode to a substrate of a compressor blade introduced into the chamber.SELECTED DRAWING: Figure 1 【課題】同一の素材であってもコーティングの方法によって耐食性が異なる。【解決手段】エンジン用圧縮機翼を被覆するコーティングの方法は、アークイオンプレーティング装置のチャンバに窒素を含む作動ガスを導入し、前記チャンバ内においてチタンアルミニウム合金をカソードとして放電を発生し、前記チャンバ内に導入した前記圧縮機翼の基体に前記カソードに比して−３２乃至−４２Ｖの初期バイアス電圧を印加して被膜を形成する、ことよりなる。【選択図】図１