Experimentally development of underwater abrasive water jet cutting system using a high-polymer mixed abrasive
- Japan Marine Science and Technology Center, Yokosuka (Japan)
Abrasive water jet cutting system, for deep sea use over 100m was developed experimentally. This report outlines the system composition and its possibility for practical use underwater. Two major problems which occur in underwater application were examined and solved. In order to avoid the first problem of tube plugging in an abrasive feeding hose and unstable feeding of abrasive to nozzle head, dry abrasive was slurried with high polymer and water. Slurry feeding rate was regulated by tube pump which located near the nozzle head underwater. Abrasive transportation in slurry form enable either batch of real-time loading to hopper even from the surface. Remotely and real-time supervising of the cutting results, i.e. cutting through or just kerfing, is the second problem to be solved. Underwater sound pressure level and acoustic frequency by water jet were found to change significantly and immediately depending on the cutting results. Such acoustic characteristics was recognized to be very useful for developing the simple, low cost and reliable supervising device.
- OSTI ID:
- 256934
- Report Number(s):
- CONF-950604-; ISBN 1-880653-17-6; TRN: IM9631%%140
- Resource Relation:
- Conference: 5. international conference on offshore and polar engineering, The Hague (Netherlands), 11-15 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the fifth (1995) international offshore and polar engineering conference. Volume 1; Chung, J.S. [ed.] [Colorado School of Mines, Golden, CO (United States)]; Das, B.M. [ed.] [California State Univ., Sacramento, CA (United States)]; Natvig, B.J. [ed.] [Norwegian Contractors, Stabekk (Norway)]; Olagnon, M. [ed.] [IFREMER, Plouzanne (France)]; PB: 646 p.
- Country of Publication:
- United States
- Language:
- English
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