Corrosion damage in connection with brazed plate heat exchangers made of stainless steel

被引：0

作者：

Stichel, W ^{[1
]}

机构：

[1] Bundesanstalt Mat Forsch & Prufung, D-12205 Berlin, Germany

来源：

MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 1998年 / 49卷 / 03期

关键词：

D O I：

10.1002/(SICI)1521-4176(199803)49:3<189::AID-MACO189>3.0.CO;2-M

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

With increasing time of operation the number of damage to brazed plate heat exchangers made of stainless steel for heating of drinking water as well as to galvanized steel tubes behind the exchangers increase. The heat exchangers suffered from leakages and bulgings. Tubes are assumed to suffer from copper induced pitting. The cause for the damage to the exchangers is galvanic corrosion of copper braze. investigations of copper contents in the hot water behind the exchanger and in the surface layer of tubes gave no clear results. But the analyses show that pitting of galvanized tubes can possibly be accelerated by liberating copper from the braze to the water.

引用

页码：189 / 194

页数：6