发明名称 |
METHOD OF CONNECTION OF THIN-WALLED METAL LINED AND COATED PIPES |
摘要 |
mechanical engineering; permanent joints of pipes; erection of pipe lines in oil and gas producing industry and in public utilities. SUBSTANCE: ends of coats are removed to the same distance as lining; then thin-walled bushes are fitted inside and outside the pipes; bushes are provided with bell-mouths and are made from corrosion-resistant metal at lower heat conductivity coefficient as compared with that of metal of pipes; this metal shall be compatible with metal of pipes in weldability. Ends of thin-walled bushes and pipes are interconnected by continuous corrosion-resistant weld seam. Ends of linings are coats are secured to ends of pipes by simultaneous expansion of inner thin-walled bushed and crimping of outer thin-walled bushed, after which ends of pipes thus prepared are welded together the aid of electrodes made from corrosion-resistant metal. EFFECT: improved quality of pipes. 2 dwg
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申请公布号 |
RU2153120(C1) |
申请公布日期 |
2000.07.20 |
申请号 |
RU19990106576 |
申请日期 |
1999.03.30 |
申请人 |
OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOST'JU "INZ;HENERNO PROIZV TS |
发明人 |
AJDUGANOV V.M. |
分类号 |
F16L13/02;(IPC1-7):F16L13/02 |
主分类号 |
F16L13/02 |
代理机构 |
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主权项 |
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地址 |
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