RUST PREVENTING MEMBER IN STEEL PIPE

• Main Authors: TSUKAHARA CHISATO, FURUKAWA SEIJI, KIHARA TADASHI, SAO TOSHIO, SAKAI MIKI, TAGAMI NAOTO
• Format: Patent
• Language: English
• Published: 29.11.2012
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; 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

PROBLEM TO BE SOLVED: To provide a rust preventing member in steel pipe, which further effectively suppresses erosion in a steel pipe and improves safety.SOLUTION: The rust preventing member 10A in steel pipe is arranged on openings 12 of both ends of a steel pipe 11 and has lid members 13 with ventilation holes 17. The lid members 13 include joint cylinders 15 arranged on a side peripheral surface outside the steel pipe 11 and lid parts 16 for at least closing the joint cylinders 15, which are arranged at a predetermined interval with both ends of the steel pipe 11.