Haomei Aluminum offers marine aluminum alloy products for the main 5052,5083,5086,5182,5251,5754 for marine manufacturing and marine installations. At the same time, Haomei Aluminum won the China Classification Society Wuhan Branch of the certificate, is the domestic ship manufacturing aluminum main supplier.
Marine aluminum plate is the emerging market for R & D applications of aluminum products. Shipboard production capacity has also become an important indicator of the comprehensive strength of various aluminum processing enterprises. With the upgrading of domestic aluminum production process, leading enterprises in Henan Province - Haomei aluminum plate production scale gradually expanded, increasingly rich types of alloys, product performance has reached the international advanced level.
At present, Haomei 5083 aluminum plate, 5086 aluminum plate, 5754 aluminum plate and other products, has entered the world shipbuilding market, mainly used in the ship's deck, the engine platform, the ship side, the bottom of the ship and other components.
Marine aluminum alloy is one of the emerging areas of aluminum products, but also the transformation and upgrading of many domestic aluminum processing enterprises focus on the direction. Marine aluminum alloy because it is used for marine ships and other fields, so than other ordinary aluminum products, there are more stringent process requirements and performance standards.
Marine aluminum alloy selection is more stringent, the current use of more is 5083,5086,5454,5754,6061 and other aluminum products. In practical applications, the advantages of marine aluminum alloy is very obvious.
The first is the proportion of small, can reduce the ship weight, saving energy consumption, increase the load;
Followed by good corrosion resistance, reduce oil and other costs, to extend the service life;
Third, welding, processing forming number, conducive to post-processing; Waste easy to recover, can be recycled, at the same time, do not burn, in case of fire safety.
First, there is a high specific strength and specific modulus, the ship's structural strength and size and material yield strength and elastic modulus are closely related, due to the elastic modulus and density of aluminum alloy is roughly the same, the addition of alloying elements also affect the slight , So within a certain range to improve the yield strength to reduce the ship structure is strong. High strength aluminum alloys are often difficult to have excellent corrosion resistance and weldability. Therefore, marine aluminum alloy is generally medium strength, corrosion resistant welding alloy;
Second, excellent welding performance. At present, the ship is mainly used in the automatic argon arc welding method, good weldability means that the formation of aluminum alloy welding cracks tend to be small, that is to say aluminum alloy to have a good welding crack resistance. Because the shipbuilding conditions can not be re-heat treatment to restore the loss of welding performance;
Third, it is excellent corrosion resistance, the ship structure how much harsh sea water and marine environment used, therefore, corrosion resistance is one of the main signs of marine alloys;
Fourth, the aluminum alloy has a good cold and hot forming performance, because the ship to be cold and processing and hot processing of a variety of processing, so the marine aluminum alloy must be easy to shape, without cracks, and processing can still meet the strength and Corrosion resistance requirements.
Development of marine grade aluminum
aluminum with its light weight, high hardness, corrosion resistance and other characteristics of the ideal shipbuilding field material. However, the development of any new thing is not smooth sailing, in the early stages of research, the application of aluminum ships have also undergone a heavy test.
the world's first ship of aluminum ships, its name is called Le Migron, by the Swede Alfred Nobel design completed, the initial carrying capacity of only 8 people, however, this is the first time the human aluminum Applied to the field of shipbuilding great attempt, it for the future aluminum, aluminum and other shipbuilding in the field of widespread use of the layoffs laid the foundation.
the Scottish shipyard Yarrow & Co exhibited a 58-meter-long aluminum torpedo ship. The torpedo ship for the Russian Imperial Navy, when the ship speed of 32 nautical miles, was broken at the time was the highest speed of the current record. A year later, the aluminum fleet 'Defender' won in America's most prestigious ship event, The America's Cup, and once again proved to the world the advantages of aluminum ships.
due to the high cost of production of aluminum at that time, its promotion has been a certain obstacle. In addition, aluminum processing technology is not yet mature, due to long-term exposure to sunlight, aluminum surface by seawater erosion more serious situation does exist, especially the high purity aluminum material. Although it sounds a bit inconceivable now, but at the time of limited technology, it has indeed become a major problem hindering its application.
For a long period of time, steel with its high hardness, low cost in the field of shipbuilding champion. However, steel ships have a fatal weakness - weight problems. The hull weight will eventually feel the speed and payload, the greater the hull structure, the stronger the reprint capacity, the corresponding steel hull will become cumbersome and difficult to control. On the contrary, the lighter the ship, the higher the ship speed, the ship owners can bring greater economic benefits, therefore, the study of better performance of aluminum alloy which has become a dynamic force of scientific and technological factors.
With the rapid development of science and technology, aluminum production costs dropped significantly, aluminum alloy performance optimization. Scientists have developed a high corrosion resistance, weldability, ductility of marine aluminum alloy, aluminum for the ship widely used to remove the obstacles. Which 5083 and 5086 are widely used in the hull structure of the keel wing, curved outer plate and the outboard plate three parts. 6061 and 6063 are mainly used for the upper structure of the ship, such as armor and so on.
With the marine economy and the development of the world's shipbuilding industry, haomei aluminum ship aluminum alloy sheet will bring a broader market prospects for the company will haomei the future cast a greater glory.
Performance and Application of 5 Series Marine Aluminum Alloy
>Marine aluminum alloy according to the different manufacturing process can be divided into deformation of aluminum and cast aluminum alloy, due to marine aluminum alloy on the strength, corrosion resistance, weldability and other special requirements, so the choice of marine aluminum alloy aluminum - magnesium alloy , Aluminum-magnesium-silicon alloy and aluminum-zinc-magnesium alloy, of which 5 series of aluminum - magnesium alloy on the most widely used in ships, then, 5 series of marine aluminum alloy What are the characteristics of it?
5 series of marine aluminum alloy mainly are 5083,5086,5454. 6 series aluminum alloy in the seawater will occur the intergranular corrosion, so the ship superstructure use more. 7 series alloy shortcomings is poor corrosion resistance, so the use of limited. On the whole, 5 series of marine aluminum is currently the most widely used, the most promising aluminum products.
5083 aluminum alloy can be regarded as representative products of 5 series marine aluminum plate. The temper are O, H111, H112, H116, H321 and so on. The composition of 5083 aluminum alloy is aluminum aluminum: balance, silicon Si: ≤0.40, copper Cu: ≤0.10 , Magnesium Mg: 4.0 to 4.9, zinc Zn: ≤0.25 Mn Mn: 0.40 to 1.0 Titanium Ti: ≤ 0.15 Cr Cr: 0.05 to 0.25 Fe Fe: 0 to 0.400, 5083 Aluminum alloy has moderate strength, good corrosion resistance and good formability , High resistance to fatigue, generally used as the main structure of the hull. Others such as 5052,5086,5454,5456, etc., are also used in hull structures or pressure vessels, pipes, hulls and decks.
In general, the thickness of the use of the plate is determined by the hull structure, the ship's specifications and the use of parts, etc., from the perspective of the weight of the hull, the general use of sheet metal, but also should be considered in the use of time the depth of corrosion of the plate, Plate has more than 1.6mm sheet and above 30mm the plate. There are also some special specifications for the use of shipyard contracts. For non-slip, deck with pattern plate.
From the development of marine aluminum, at present, many domestic aluminum manufacturers have begun to focus on research and development 5 series, 6 series of marine aluminum, increase scientific research, expand production scale, into the marine aluminum and other high-end manufacturing market. To the national aluminum processing enterprises - Haomei Aluminum, for example, its 5083,5086,5454 and other aluminum by 2015 China Classification Society certification, in October and passed the Norwegian Classification Society certification, made foreign trade aluminum "world License ", which will be the company's marine aluminum market to open up a broader space for development, but also for the domestic shipboard enterprises to upgrade and play a positive role model.
| Classify | Aluminium Alloy | Temper | Chemical composition | Characteristics | Applications |
| Used for Ship body | 5052 | O H14 H34 |
Al ：remainder Si： ≤0.25 Cu ：≤0.10 Mg：2.2~2.8 Zn：≤0.10 Mn：≤0.10 Cr：0.15～0.35 Fe：≤0.40 |
moderate strength, with good corrosionresistance and formability |
upper structure, subsidiary component, boat body |
| 5083 | O H32 |
Al ：remainder Si ：≤0.40 Cu：≤0.10 Mg：4.0～4.9 Zn：≤0.25 Mn：0.40～1.0 Ti：≤0.15 Cr：0.05～0.2 5Fe：0～ 0.400 |
typical welding aluminium alloy, with the highest strength in nonheat treated alloy, with good weldability, good corrosion resistance and good low temperature performance |
main structure of ship body | |
| 5086 | H32 H34 |
Al：remainder Si ：≤0.40 Cu：≤0.10 Mg：3.5～4.5 Zn：≤0.25 Mn：0.20～0.7 Ti：≤0.15 Cr：0.05～0.25 Fe：0～ 0.500 |
With good weldability and corrosion resistance as alloy 5083, lower strength than 5083, with better extrusion |
main structure of ship body | |
| 5454 | H32 H34 | Al：remainder Si ：≤0.25 Cu：≤0.10 Mg：2.4～3.0 Zn：≤0.25 Mn：0.50～1.0 Ti：≤0.20 Cr：0.05～0.20 Fe：0.000～0.400 |
Tensile strength is 22% higher than 5052, with good corrosion resistance and good weldability, but common formability |
ship structure, pressure vessel, pipeline etc. |
|
| 6061 | T4 T6 |
Cu :0.15～0.4 Mn :0.15 Mg :0.8～1.2 Zn :0.25 Cr :0.04～0.35 Ti :0.15 Si :0.4～0.8 Fe :0.7 Al :remainder |
Heat treating corrosion resistant alloy, with high tensile strength but low welded joint strength, mainly used for screw joint and riveted structure which no contacting with seawater |
Upper structure, clapboard structure, frame etc. |
|
| Used for outfitting | 1050 | H112 O H12 H24 |
Al ：remainder Si： ≤0.25 Fe：0.40 Cu ：≤0.50 Mn：≤0.50 Mg：≤0.50 Zn：≤0.15 Ti ：≤0.03 |
with low tensile strength, good processability, good weldability, good corrosion resistance, high surface processability |
interior finish |
| 1200 | H112 O H12 H24 |
Cu ：≤0.50 Mn：≤0.50 Zn：≤0.15 Ti ：≤0.03 Fe+Si：≤1.0 |
with low tensile strength, good processability, good weldability, good corrosion resistance, high surface processability |
interior finish | |
| 3003 | H112 O H12 |
Al ：remainder Si： ≤0.60 Fe：≤0.70 Cu ：≤0.50 Mn：1.0~1.5 Zn：≤0.10 （3202） |
Tensile strength is 10% higher than 1100, good formability, good weldability, good corrosion resistance |
interior finish, top plate and side plate of LPG tanks |
Advantage s of Haomei Marine grade aluminum plate
Advanced production equipment, strong processing capacity, - made Haomei marine aluminum plate of excellent quality.
Strong processing capacity - Hao Mei marine aluminum with an annual output of 200,000 tons to help customers seize the market.
Authoritative international certification - for the Hao Mei quality board to ensure quality.
The low density, high strength, high rigidity and corrosion resistance of aluminum make the aluminum ship 20% lighter in weight compared to ships made of steel or other alloy materials. This can reduce ship weight and reduce energy.
Haomei marine aluminum alloy of high toughness, corrosion resistance and weldability, for the strict production of the ship may be possible. At the same time, the Haomei board can be more resistant to the ocean climate in the atmosphere, steam, water and other media corrosion, durable, more economical.
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