From the perspective of material recyclability, steel, aluminum alloy, and polyethylene are selected to build fishing boats. The common grades of marine aluminum plated are 5083, 5052, 5086, 6061, 6082 aluminum sheet. The hull materials that have reached the end of life can be recycled, reprocessed, and reused, which meets the requirements for effective use of natural resources.
However, steel has poor resistance to environmental corrosion and has a rough surface, which is easily adhered to by aquatic organisms. A large amount of steel is lost due to corrosion every year. Therefore, the surface of steel used in ship construction must be sprayed with paint, and paint can cause water pollution and poison aquatic organisms.
Although fiberglass fishing boats have very obvious advantages over traditional wooden fishing boats in many aspects, their scrapped hull materials cannot be recycled and pollute the environment. It can be seen that aluminum alloy and polyethylene are sustainable fishing boat construction materials.
Development Trend of Fishing Boat Hull Materials
Energy-saving materials
As people's awareness of the energy crisis and environmental protection increases, the requirements for energy conservation and emission reduction of fishing boats are getting higher and higher. At present, fiberglass composite materials, high-density polyethylene materials, and aluminum alloy materials are the primary choices for building fishing boats.
High strength material
As the offshore fishery resources in various countries around the world become increasingly tight, the competition to obtain distant-water fishery resources becomes more and more fierce. Distant-water fishing boats are gradually developing towards large-scale and multi-functional. Fishing boats operating in the open sea for a long time need to cope with various harsh meteorological environments, which has a negative impact on the hull strength of fishing boats. There are very high requirements for the strength of fishing boat hulls.
Corrosion-resistant materials
Ships have been in the marine environment for a long time, and the problem of hull corrosion has always been the focus of people's attention. Reasonable anti-corrosion design is a key factor in controlling ship corrosion. The selection of construction materials, the design of ship structure and the ship construction process all have certain effect on the corrosion resistance of the hulls.
Low cost material
At present, the hull construction cost accounts for more than half of the total cost, which mainly includes material procurement fees and labor fees. The difficulty of material processing determines the construction cycle, which in turn affects labor costs. Therefore, materials that are cheap and easy to process and form, such as composite masking materials are much favored.
Haomei Aluminum has rich grades of marine aluminum alloys including 5052, 5083, 5086h32 aluminum. Welcome to leave message below to inquire what you need.
Original Source:https://www.marinealu.com/a/what-are-the-development-trends-of-fishing-boat-hull-materials.html
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