At present, the raw material for marine propellers is generally copper, which is expensive and not light in weight. The use of CFRP instead of only 1/5 of the same copper weight can also increase the fuel efficiency by 3%, and the anti-corrosion capability is also strengthened. The cavitation erosion can be suppressed and replaced easily. It is especially suitable for diving vessels and research ships and has a good market demand. .
In order to achieve commercial use within 2-3 years, the Nakajima Propeller has begun trial application on the ship to collect data, and at the same time accelerate the research and development of related technologies such as material testing and heat treatment. As the largest manufacturer of marine propellers in Japan, Nakashima Propeller achieved a turnover of 21,100 million yen (US$275 million) during the fiscal year of April 2010 to March 2011, accounting for 70% of the Japanese propeller market.
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