METHOD FOR PROCESSING SURFACE OF STEEL MEMBER, AND STEEL MEMBER

The present invention provides a method for processing the surface of a steel member and the steel member. The method for processing the surface of steel member in the present invention includes the following steps: cleaning the surface of the steel member; and connecting the steel member to the pos...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MANGOLD, Andreas, ZHANG, Zhenyan, SCHORN, Silvia, HAAG, Bertram, WEI, Jianfei, YE, Shenghua
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS THEREFOR BEARINGS 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 ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MECHANICAL ENGINEERING METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The present invention provides a method for processing the surface of a steel member and the steel member. The method for processing the surface of steel member in the present invention includes the following steps: cleaning the surface of the steel member; and connecting the steel member to the positive electrode of a power supply, and connecting a conductor electrode to the negative electrode of the power supply, and immersing the same in electrochemical oxidation solution for processing; wherein an alkali metal hydroxide is dissolved in the electrochemical oxidation solution. The electrochemical oxidation solution in the present invention has a simpler composition than that of a traditional chemical black oxidation solution, which is easy to be prepared. Due to low temperature during the process, it saves the energy and reduces the evaporation of water and the frequency to supplement water, as well as provides high level of safety. It can achieve partial or full oxidation of the surface of the steel member to form a dense and uniform oxide layer, which can effectively block the intrusion of hydrogen elements, reduce the amount of hydrogen in the steel member, and prevent failure due to white-etching cracks.