发明名称 |
BUOYANCY DEVICE FOR VERY DEEP WATER AND PRODUCTION METHOD THEREOF |
摘要 |
A buoyancy device (1) comprises a support structure 2, which can be connected to an underwater application (3) and one or more buoyancy spheres (4) having a specific weight of less than 500 kg/m3 connected to the support structure (2) and having a light metal spherical shell (5) defining a spherical inner volume (6) and which has an outer diameter (d) greater than 0.5cm, and a radial thickness (t) greater than 0.08mm, wherein the spherical shell (5) is obtained in one piece in nano-crystalline metal with an average grain size of less than 1000 nanometers. |
申请公布号 |
WO2016128884(A1) |
申请公布日期 |
2016.08.18 |
申请号 |
WO2016IB50661 |
申请日期 |
2016.02.09 |
申请人 |
SAIPEM S.P.A. |
发明人 |
BREGONZIO, Valerio;SCAINI, Cristian |
分类号 |
E21B17/01;C25D3/44;C25D7/00 |
主分类号 |
E21B17/01 |
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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