TITLE:
Deep-Sea Cobalt Crusts Water Jet Cutting Ability
AUTHORS:
Zhonghua Huang, Ya Xie
KEYWORDS:
Water Jet, System Parameters, Deep-Sea Cobalt Crusts, Cutting Ability
JOURNAL NAME:
Geomaterials,
Vol.1 No.2,
July
29,
2011
ABSTRACT: Deep-sea cobalt crusts water jet cutting method is proposed to avoid cutter impact load. With simulation calculations and experimental tests, water jet system parameters and its cutting ability were studied. Simula-tion results show that working pressure, ejection range and ejection angle of water jet system are main parameters of its cutting ability. Its important degree is in turn the working pressure, ejection range and ejection angle. Increasing water jet system working pressure is the most effective way to improve its cutting ability. When water jet working pressure is constant, in order to improve its cutting ability, the ejection range should be less than 4mm (four times of nozzle diameter) and the ejection angle should be about 13o. Experimental results show that there is a threshold pressure during water jet cutting cobalt crusts simulation material. With the increase of water jet working pressure, its cutting ability increases dramatically. With the increasing of water jet ejection range, its cutting ability decreases sharply. The optimal ejection angle is about 13o