PROBLEM TO BE SOLVED: To provide a method of applying an electrochemical surface treatment only on a part of a metallic subject W to be treated while reducing an amount used of a surface treatment liquid 2.SOLUTION: According to a surface treatment method of the present invention, when by using a surface treatment apparatus 1 that holds a metallic subject W to be treated formed into a cylindrical shape or a disc-like shape on an apex side and is provided with a revolution shaft 6 that freely rotates about the revolution shaft, an electrochemical surface treatment is applied to a part of an outer peripheral side of the subject W to be treated while imparting electric power to the subject W to be treated held on the apex side of the revolution shaft 6, on an intermediate side or a base end side of the revolution shaft 6, an oscillation mechanism 10 that oscillates the apex side of the revolution shaft in a vertical direction to the base end side is provided, and a surface treatment tank 9 accommodating the surface treatment liquid 2 that applies a surface treatment on the subject W to be treated is provided on a lower side of the revolution shaft 6, while oscillating the revolution shaft 6 in a tilt-down posture in which the apex end side of the revolution shaft 6 is located on a lower side than the base end side, the revolution shaft 6 is revolved to apply an electrochemical surface treatment on a part on an outer peripheral side of the subject W to be treated with the surface treatment liquid 2.SELECTED DRAWING: Figure 1
【課題】 金属製の被処理物Wの一部だけに表面処理液2の使用量を低減しつつ電気化学的な表面処理を行う。【解決手段】本発明の表面処理方法は、円筒形状または円板形状に形成された金属製の被処理物Wを先端側に保持し、且つ、軸心回りに回転自在とされた回転軸6を備えた表面処理装置1を用いて、回転軸6の先端側に保持された被処理物Wに電力を付与しつつ被処理物Wの外周側の一部に電気化学的な表面処理を行うに際しては、回転軸6の中途側又は基端側に、当該回転軸の先端側を基端側に対して上下方向に揺動させる揺動機構10を設けると共に、回転軸6の下方に被処理物Wに表面処理を行う表面処理液2を収容した表面処理槽9を設けておき、回転軸6の先端側が基端側よりも下方に位置するチルトダウン姿勢に回転軸6を揺動させつつ、回転軸6を回転させることにより、被処理物Wの外周側の一部に対して表面処理液2を用いた電気化学的な表面処理を行う。【選択図】図1
SURFACE TREATMENT METHOD AND SURFACE TREATMENT APPARATUS
表面処理方法及び表面処理装置
2017-12-28
Patent
Electronic Resource
Japanese
IPC: | C25D Verfahren für die elektrolytische oder elektrophoretische Herstellung von Überzügen , PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS / B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL , Verfahren zum Aufbringen von Flüssigkeiten oder von anderen fließfähigen Stoffen auf Oberflächen allgemein / B60B VEHICLE WHEELS , Räder für Fahrzeuge |