发明名称 |
METHOD FOR THE SURFACE TREATMENT OF SCREW THREADS |
摘要 |
The surfaces of threads, sealing surfaces, and other load-bearing surfaces of oil field tubes or the like are treated by blasting surfaces to increase the roughness thereof to obtain a roughness of an average depth of from 7 to 15 micrometers under utilization of corundum or silicon carbide at a grain size of from 40 micrometers to 200 micrometers; a resin varnish is deposited onto the blasted surface for curing at higher than room temperature and including molybdenum sulfide at a layer thickness of from 5 to 20 micrometers. The varnish is cured in situ by heating. |
申请公布号 |
DE3165930(D1) |
申请公布日期 |
1984.10.18 |
申请号 |
DE19813165930 |
申请日期 |
1981.03.30 |
申请人 |
MANNESMANN AKTIENGESELLSCHAFT |
发明人 |
HUBECKER, HANS, ING.GRAD.;LENZE, FRIEDRICH, DR. ING.;MISSAIRE, GERHARD, ING.GRAD. |
分类号 |
C10M111/04;B05D7/14;C10N10/06;C10N10/12;C10N20/06;C10N40/00;C10N50/08;F16B33/06;F16L15/00;(IPC1-7):F16L15/00;B05D3/00 |
主分类号 |
C10M111/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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