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Not long ago, coastguard cutter of glass reinforced plastics of royal sea for military use replaced England the steeliness coastguard cutter of two Gibraltar squadron. Steeliness of these two glass grows coastguard cutter 19 meters by British silent the ocean of Xi Saide county is professional technical group (MST Group) make, what before comparing, enlist in army is lighter, speed is gotten quickly also much, highest speek of a ship or plane is 40. This kind of speed, the optics with the most advanced union and infra-red exploration system, be in for squadron British the job that Gibraltar territorial sea provides safety and army protection to be worth a ship at high price offerred an advantage.
MST and British Norco Composites&GRP signs a contract, make shipbuilding body, cab and inner structure, be like bulkhead, crossbeam and collision cabin. Norco uses the GFRP tool that comprises by two parts and perfusion device to build the body of a ship. The short underlay cutting felt that lay up plans to include coating of a gel and a wet laid. This company uses a hand to press squeezing ramming of roller general fiber to the area of complex curvature, be like the gush water course of hull bottom.
Use dry tissue next, special attention needs the area of additional consolidate, be like dynamical transmission system and keel. Installed core of PVC of CNC cut closed pore to cover, provide needs stiffness and strength for face plate.
After dry fiber lay up is finished, vacuum perfusion vinyl ester colophony and solidify 12 hours. Same production method is used at cab. Planar component, include bulkhead, fore-and-aft with transverse bridge, prevent hit cabin, watertight cabin and floor, produce alone through colophony perfusion, go up to the structure to agglutinate by Norco or MST company next. Fore-and-aft by much axis with transverse bridge fibre glass fabric and one-way carbon fiber are made.
This also offerred consolidate for fore-and-aft crossbeam, bent in order to answer what hull high speed happens when gliding in water at 3 o'clock.
Through using clamping apparatus bubble core places will low density to go up in hull and its agglutinate reachs the designated position, transfer crossbeam lamination arrives on hull. Get on vitreous fabric shop in core next, next will dry structural vacuum infuse beforehand on the hull crust of solidify. Make appliance has representative crossbeam sectional undertake a series of perfusion check, ensure perfusion distribution is equal, pressing plate of layer of wet cover board of successful embellish.
Reach the designated position crossbeam perfusion decreased to produce level, because later need not agglutinate arrives on hull. Boat wall uses structural adhesive to join to hull, use handiwork of fabric of fine of double axis Bo to enclothe next, in order to provide the structural link between hull, bulkhead and floor.
At present MST company obtains England royal navy a value the contract of 50.76 million dollar, mix 4 years to police of British department of defense in future consign of police of Gibraltar department of defense 18 15 rice GFRP patrol boat.
1
Main effect is produced in naval ships industry
Composite material is all the time since come out in naval ships industry producing main effect. The application that goes up domestic and internationally in naval naval vessels to its takes seriously very much. Composite material has following outstanding advantages when applying on naval naval vessels: Good mechanical performance; Anti-corrosive; Decrease considerably heavy; Function of good reputation, magnetism, report; Function of good design, construction, safeguard easily, uphold charge far under steeliness a light boat and wooden a light boat.
Composite material makes a respect compare metal and other and conventional data in boat a light boat, be like lumber, have more advantages. Compare with the metallic photograph such as steel or aluminium, composite material can reduce the gross weight of the component 30 ~ 40% . The whole of weight decreases brought 2 a chain of advantages, be discharged like lower operation cost, fewer greenhouse gas and taller fuel efficiency. The use of composite material still passes component conformity, eliminated fastener, reduce weight further thereby.
Composite material also built division to offer bigger design to be spent freely for boat a light boat, make the part with a complex form likely thereby. In addition, if compare composite material and competitive material posture, the life cycle cost of composite material component is apparent lower, maintain cost because of it lower, and because have corrosion resistance and wear, the cost that its are installed and assembles is lower also.
Make to boat a light boat for, the sex of an organic whole of material and structure can reduce the machining such as car, clamp, dig greatly process and rig a process, make the integral sex of hull and component good, without juncture or little juncture, and without leakage, improve the integral performance of boat a light boat thereby. The maintenance of a light boat of composite material boat charge also is mixed under steel ship wooden vessel. Annual, it is very considerable that a light boat of global steeliness boat upholds charge because of what corrode and cause. This pardonable composite material in boat a light boat original equipment manufacturer and the acceptance in one class supplier are spent taller and taller.
As a result of composite material these particular advantages, in 20 centuries 40 time metaphase, american navy uses composite material to build naval vessel ship above all. These naval ships stiffness big, intensity is big, abiding durable and maintain easily, accordingly, in 20 centuries 40 time middle period arrives 60 time, composite material applies mushroom mediumly in American navy. During Vietnam war, coastguard cutter of the passenger transport naval ships and boat that uses composite material, inland river, landing boat and a few in battle amount of reconnoiter a light boat amounts to 3000. The clipper-built podium crust of the pipeline system of the mast of naval ships of the deckhouse that American navy still uses composite material on small-sized naval ships, communication, chaser, submarine and cast.
In 20 centuries 50 time, other navy begins to use composite material structure on their naval ships and submarine. Royal navy and French navy begin England to use composite material to replace rolled steel in submarine sonar hood, lead with obtaining taller sound wave to penetrate, same, composite material applies to be able to protect communication and surveillant antenna in the aerial hood of offshore naval ships. To 20 centuries 70 time, england is royal royal navy and Norwegian navy begin naval, Sweden use composite material to make hunt thunder a light boat, holand navy also begins to use composite material on pilot boat and landing boat.
Our country begins to use composite material to build boat ship since 1958, apply Yu Jun to taste a domain above all, expand stage by stage next to civil domain. In last few years high speed of composite material industry develops, our country builds speed to be accelerated apparently, large naval ships enters fast hair exhibition period in last few years. 20 centuries since 90 time, as the technology development and craft are introduced, our country used composite material to produce a large number of houseboat, caique, rescue boat, and the coastguard cutter with the taller speek of a ship or plane such as inspect of public security, armed police, sea, custom, execute the law a light boat of accurate military affairs such as a light boat, coastguard cutter.
01
Coastguard cutter
Coastguard cutter already had development of a few years to the application of composite material. The first coastguard vessel that uses fibre glass completely to make is built at 60 time by the United States inchoate. In 20 centuries 779 time, composite material uses at small-sized coastguard cutter gradually build. Most fibre glass coastguard cutter does not exceed L0m, displacement does not exceed 10t, and its are in commonly inland river and coastal water area are used. Because the stiffness of composite material is inferior, the coastguard cutter case that surpasses 25m uses steel commonly or aluminium alloy is built.
A lot of countries are already capable now to build long 55m, displacement amounts to the maritime coastguard cutter of 3001. Research compared the cost of steel, aluminium alloy and composite material structure, weight and structural performance, the aluminium alloy naval ships of more coequal dimensions decreases the naval ships that discovers use composite material is like fibre glass to be made an appointment with again 10% , naval ships decreases the steel structure of more coequal size to be made an appointment with again 36% .
Showing level application composite material to create the problem of ship naval vessel is composite material the stiffness that makes hull bridge is low, relatively for vessel of steel structure ship, the deflexion tower above of its hull bridge 300% , deflection compares tower above 240% . Be in break of easy generation exhaustion in joint and join with a hinge thereby, cause airscrew axes to produce amlposition. The biggest coastguard cutter that complete composite material makes is ” of shield of Norwegian naval “ (LJD) class coastguard cutter. This a light boat is boat of effect of dual system air cushion, the composite material placing core that constitutes by layer of polyvinyl chloride bubble and fibre glass and carbon fiber interlining completely builds.
02
Hunt thunder a light boat
The lumber that does not have magnetism is used to make on tradition of hunt thunder a light boat explode in order to avoid magnetic mine. The XMSB-23 of a light boat of thunder of turn one's coat that American navy tried to used structure of interlining of composite material beehive to make a 15.5m grow 1951.
However, because make the matter of quality, mechanical function and waterproof properties, seawater arrives into the person in hull and cannot execute hunt thunder mission. 60 time mix 20 centuries 70 time, the United States and England continue the development of a light boat of thunder of composite material hunt, build long 46.6m at succeeding 1973, the HMS Wilton number that is fully loaded with displacement 450t is total a light boat of thunder of fibre glass hunt.
England is royal navy, France navy, Belgian with Holand royal navy uses veneer to added muscle structure to build in succession chase class, Sang Dao class and a light boat of thunder of companionate class hunt.
03
Naval frigate
Up to now, naval frigate is the longest boat that uses composite material to build model. Class frigate uses the Weisibi that royal navy builds Sweden carbon fiber and fibre glass mix the polymer sheet that strengthen to include the construction of composite material interlining that layer of polyvinyl chloride core controls Fu, technology of use vacuum perfusion makes naval ships weight is reduced about 30% . Improved the performance of ship naval vessel, if reduce oily bad news of ship naval vessel and operation cost.
Structure of use carbon fiber also makes class frigate had Weisibi electromagnetism defends function. Royal and naval plan uses Singapore the ship system that dimension of triumphant Fu track makes structure of composite material interlining, increase effectively to come loose to small-sized weapon firepower and pomegranate the counteractive ability that play. Predicting length can amount to 80m displacement to amount to 1016t, its length and dimensions all exceed Vishy class frigate. Use composite material to replace steel to build long 85m, the warship of displacement 1200t can reduce weight about 30% , displacement reduces 7-21% , cost is managing artful % , can increase weapon load and naval ships thereby fight limits, rise fight ability.
04
Shui Jiting fills up a boat compatibly
20 centuries since 70 time, the to composite material application in naval Shui Yiting and hovercraft is less. Most the blame structure position that begins to just also be used at ship vessel is measured with reducing weight. Recently, the main construction that composite material begins to apply in hovercraft is like superstructure and crust to go up.
The captain of air cushion of one M10 class that sri lanka entered the water 1998 makes an appointment with 18.8m, use dimension of triumphant Fu track completely to make. Its crust material will have composite material to replace traditional aluminium alloy to be measured in order to reduce weight, increase fatigue resistance can, reduce maintenance cost, but its build charge to also will rise about 15% .
05
The application of other part
Fiber increases model composite material is in shipbuilding industry, because its are had shape convenient, make technology simple, build cycle short, without magnetism, can pass through radar wave and infrared ray, and hull is easy maintain, do not pollute wait for an advantage and win wide application.
In recent years, composite material increases ceaselessly in application of each country naval, applied component includes box of wainscot of hull, floor, wall, board and bulkhead and pipeline system, gasoline tank, liquid waste, sonar the application in cover, conduit, propeller, mast and superstructure is more and more general.