OIL FILLER PIPE FOR AUTOMOBILE EXCELLENT IN SALT DAMAGE RESISTANCE AND HAVING SUPPRESSED APPEARANCE DETERIORATION

• Main Authors: INOUE YOSHIHARU, ABE MASATOSHI, URASHIMA YUJI, HIRAIDE NOBUHIKO, TAGAMI TOSHIO
• Format: Patent
• Language: English; Japanese
• Published: 23.09.2016
• Subjects: ALLOYS; 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; COMBUSTION ENGINES; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WEAPONS

PROBLEM TO BE SOLVED: To provide an oil filler pipe for automobile excellent in salt damage resistance at low cost.SOLUTION: There is provided an oil filler pipe for automobile which forms a gap structure part 3 exposed to salt damage environment between a member 1 from a ferritic stainless steel containing, by mass%, C:≤0.015%, N:≤0.015%, Cr:13.0 to 18.0%, Si:0.01 to 0.80%, Mn:0.01 to 0.80%, P≤0.050%, S:≤0.010%, Mo:≤1.5%, Al:0.010 to 0.100% and satisfying one or both of Ti:0.03 to 0.30% and Nb:0.03 to 0.30% as a raw material and a fitting component 2 molded from a steel sheet attached to the member 1, is plated with plating added amount of the fitting component 2 on a surface corresponding to a gap part of the gap structure part 3 of 20 g/mto 150 g/mand sacrificial corrosion resistant and is coated not whole area.SELECTED DRAWING: Figure 1 【課題】廉価で塩害耐食性に優れた自動車用給油管を提供する。【解決手段】質量％で、Ｃ：≦０．０１５％、Ｎ：≦０．０１５％、Ｃｒ：１３．０〜１８．０％、Ｓｉ：０．０１〜０．８０％、Ｍｎ：０．０１〜０．８０％、Ｐ≦０．０５０％、Ｓ：≦０．０１０％、Ｍｏ：≦１．５％、Ａｌ：０．０１０〜０．１００％を含有し、Ｔｉ：０．０３〜０．３０％、Ｎｂ：０．０３〜０．３０％の一方又は両方を満たすフェライト系ステンレス鋼を素材としためっきを有しない部材１と、前記部材１に取り付けられる鋼板から成型された金具部品２との間において、塩害環境に曝される隙間構造部３を形成し、前記隙間構造部３の隙間部に当たる面における前記金具部品２のめっき付着量が２０ｇ／ｍ2以上１５０ｇ／ｍ2以下の犠牲防食作用のあるめっきが施され、かつ、全面に塗装しないことを特徴とする自動車用給油管である。【選択図】図１