JP2009256792A5

JP2009256792A5 -

Info

Publication number: JP2009256792A5
Application number: JP2009071066A
Authority: JP
Filing date: 2009-03-24
Publication date: 2009-12-17
Anticipated expiration: 2029-03-24

Description

本発明のさらに別の外面防食管の製造方法は、Ｚｎ−Ｓｎ−Ｍｇ線材、またはこれにＴｉ、Ｃｏ、Ｎｉ、Ｐのうち少なくともいずれか一つを含ませた線材を第１の線材として用いるとともに、Ｚｎ線材を第２の線材として用いて、同時にアーク溶射を行うことを特徴とする。
本発明のＺｎ−Ｓｎ−Ｍｇ系溶射用合金は、Ｓｎが１質量％を超えかつ５０質量％未満であり、Ｍｇが０．０１質量％を超えかつ５質量％未満であり、残部がＺｎであることを特徴とする。
本発明のＺｎ−Ｓｎ−Ｍｇ系溶射用合金は、線材であるようにすることができる。 In another method of manufacturing an outer surface anticorrosive pipe according to the present invention, a Zn—Sn—Mg wire or a wire containing at least one of Ti, Co, Ni, and P is used as the first wire. At the same time, using the Zn wire as the second wire, arc spraying is performed simultaneously.
In the Zn-Sn-Mg based thermal spray alloy of the present invention, Sn exceeds 1 mass% and less than 50 mass%, Mg exceeds 0.01 mass% and less than 5 mass%, and the balance is Zn. It is characterized by being.
The Zn—Sn—Mg based thermal spray alloy of the present invention can be a wire.

Claims

An anticorrosion layer is formed on the surface of a tube made of an iron-based material, and this anticorrosion layer has a Zn-Sn alloy sprayed coating in which Sn is more than 1% by mass and less than 50% by mass, and the balance is Zn. An outer surface anticorrosion pipe characterized by containing.

An anticorrosion layer is formed on the surface of a tube made of an iron-based material, and this anticorrosion layer has Sn exceeding 1% by mass and less than 50% by mass, Mg exceeding 0.01% by mass and 5% by mass The outer surface anticorrosion pipe | tube characterized by containing the Zn-Sn-Mg type alloy sprayed coating which is less than and the remainder is Zn.

The alloy sprayed coating of the anticorrosive layer contains at least one of Ti, Co, Ni, and P, and the content thereof is more than 0.001% by mass and less than 3% by mass. The outer surface anticorrosion pipe according to claim 1 or 2.

4. Manufacturing an outer surface anticorrosive pipe according to any one of claims 1 to 3, wherein the alloy sprayed coating is heat-treated at a temperature not lower than the eutectic temperature of the alloy and lower than the melting point. Method.

When manufacturing the outer surface anticorrosion pipe according to claim 1 or 2, a Zn-Sn wire or a wire containing at least one of Ti, Co, Ni, and P is used as the first wire. And the manufacturing method of the outer surface anticorrosion pipe | tube characterized by performing arc spraying simultaneously using Zn wire as a 2nd wire.

When manufacturing the outer surface anticorrosion pipe according to claim 1 or 3, a Zn-Sn-Mg wire, or a wire containing at least one of Ti, Co, Ni, and P, is used as the first wire. A method for manufacturing an outer surface anticorrosive tube, wherein the arc wire is simultaneously sprayed using a Zn wire as a second wire.

For Zn-Sn-Mg-based thermal spraying, characterized in that Sn exceeds 1% by mass and less than 50% by mass, Mg exceeds 0.01% by mass and less than 5% by mass, and the balance is Zn. alloy.

The Zn-Sn-Mg-based thermal spraying alloy according to claim 7, which is a wire.