| 发明名称 |
Copper-based spinodal alloy bearings |
| 摘要 |
This invention relates to the use of spinodal alloys consisting essentially of copper-nickel-tin for bearing surfaces formed between roller cutter cones of sealed bearing rock bits.
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| 申请公布号 |
US4641976(A) |
申请公布日期 |
1987.02.10 |
| 申请号 |
US19850794358 |
申请日期 |
1985.11.01 |
| 申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
KAR, NARESHCHRANDRA J. |
| 分类号 |
C22C9/00;E21B10/22;F16C33/12;(IPC1-7):E21B10/22;F16C17/12 |
主分类号 |
C22C9/00 |
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