Title:
INHIBITOR OF CORROSION OR THE LIKE IN METAL SURFACE AND METHOD FOR INHIBITING CORROSION OR THE LIKE
Document Type and Number:
Japanese Patent JP3426846
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To effectively inhibit corrosion or corrosion cracking in the surface of a metal from occurring by using a blend of an organic or inorganic coating film forming material and grainy titanium dioxide as a corrosion inhibitor.
SOLUTION: In the method using this inhibitor 1, grainy titanium dioxide is adopted on account of its good corrosion resistance and corrosion cracking resistance and the surface of a base material K made of a metal or the like is coated with the inhibitor 1 to form a coating layer of the inhibitor 1 on the surface of the base material K. At this time, a film forming material 3 is interposed between every adjacent two of grains 2 of the titanium dioxide so that every adjacent two of the grains 2 are not joined to each other and each of the grains 2 is disposed at a position independent from the other to form the coating layer of the inhibitor 1. Therefore, when a change in temp. is caused, each of the grains 2 is expanded or contracted independently from the change in volume of the base material K to prevent any swelling or cracking of the coating layer of the inhibitor 1 due to the difference in thermal expansion coefficient between the base material K and each of the grains 2 from occurring. If there is any recessed part K1 in the surface of the base material K, the recessed part K1 can be filled with the inhibitor 1 by a coating or injection method. The coating of the surface of the base material K with the inhibitor 1 can more easily be performed in a shorter time as compared with a conventional thermal spraying process or the like. Thus, any recessed part in a state subjected to pitting corrosion such as sulfide corrosion can easily and surely be filled with the inhibitor 1, and accordingly, an equipment in a state subjected to pitting corrosion can be repaired with the inhibitor 1.
Inventors:
Toshiro Fukushima
Gunji Ueno
Shosuke Itomura
Seiji Masano
Gunji Ueno
Shosuke Itomura
Seiji Masano
Application Number:
JP11050896A
Publication Date:
July 14, 2003
Filing Date:
April 05, 1996
Export Citation:
Assignee:
Kanmeta Engineering Co., Ltd.
International Classes:
C23F11/00; (IPC1-7): C23F11/00
Domestic Patent References:
| JP6200192A | ||||
| JP4356555A | ||||
| JP51105943A | ||||
| JP60141821A | ||||
| JP3177588A | ||||
| JP6329959A | ||||
| JP5970702A | ||||
| JP2290245A | ||||
| JP8260170A |
Attorney, Agent or Firm:
Takenobu Samejima