发明名称 |
METHOD OF CORROSION PROTECTION OF WELD SEAM AND AROUND-THE-WELD ZONE |
摘要 |
FIELD: pipe line fittings. SUBSTANCE: proposed method includes isolation of inner surfaces of tube ends from pipe line interior by means of cylindrical envelopes made from corrosion-resistant steel and corrosion0resistant weld. Cylindrical envelopes made from corrosion-resistant steel and their corrosion-resistant welds are isolated from pipe line interior by means of cylindrical envelopes made from carbon steel or low-carbon steel and their welds. Standard electrode potential of cylindrical envelopes made from carbon steel or low-carbon steel and their welds is lesser than that of envelopes made from corrosion-resistance steel and their welds but it does not exceed standard electrode potential of metal of pipes and their welds. EFFECT: enhanced corrosion protection. 1 dwg
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申请公布号 |
RU2205323(C1) |
申请公布日期 |
2003.05.27 |
申请号 |
RU20020101432 |
申请日期 |
2002.01.11 |
申请人 |
OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOST'JU "INZHENERNO-PROIZVODSTVENNYJ TSENTR" |
发明人 |
AJDUGANOV V.M. |
分类号 |
F16L58/08 |
主分类号 |
F16L58/08 |
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