carbon coated steel and method of manufacturing the same

The present invention provides a carbon-coated steel material having oxidation resistance, sour resistance, and hydrogen-induced crack resistance which can be formed by using an existing tempering heat treatment process of a steel material. According to one embodiment of the present invention, the m...

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Bibliographische Detailangaben
Hauptverfasser:	LEE JAE HYUN, CHON SEUNG HWAN, PARK MIN HO, HYUN SANG HWA
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	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 GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	The present invention provides a carbon-coated steel material having oxidation resistance, sour resistance, and hydrogen-induced crack resistance which can be formed by using an existing tempering heat treatment process of a steel material. According to one embodiment of the present invention, the manufacturing method of the carbon-coated steel material comprises: a step of tempering heat treatment by heating the steel material; and a step of injecting gasified benzene while the steel material is heated to form a carbon coating layer on a surface of the steel material. 본 발명은, 강재의 기존 템퍼링 열처리 공정을 활용하여 형성할 수 있는, 내산화성, 내사워성, 및 수소유도균열 저항성을 가지는 탄소피복강재 및 그 제조방법을 제공한다. 본 발명의 일 실시예에 의하면, 상기 탄소피복강재의 제조방법은, 강재를 가열하여 템퍼링 열처리하는 단계; 및 상기 강재가 가열된 상태에서 가스화 벤젠을 주입하여, 상기 강재의 표면에 탄소 피복층을 형성하는 단계;를 포함한다.