Briefly Overview Aluminium Alloy 6082

Aluminium Alloy 6082

Alloy 6082 belongs to 6××× series (Al-Mg-Si series), is aluminium sheet of ability to heat treatment to strength, with moderate intensity and good welding performance, corrosion resistance, mainly applied to transportation and construction engineering industry, such as bridges, cranes, roof truss, transport aircraft, cargo ship etc.

In recent years, with the development of the domestic and international shipbuilding industry by leaps and bounds, lightening the hull weight, improving the speed, seeking to replace steel components of aluminum alloy material, has become an important topic for the aluminum industry and shipbuilding. Aluminum alloy 6082 plate with moderate strength and good corrosion resistance and light in weight is an ideal material to manufacture components.

The Chemical Component:

Mechanical Property

Tensile Strength σb (MPa)：≥205

Offset Yield Strength: σ0.2 (MPa)：≥110

Elongation Percentage δ10 (%)：≥14

Remark: The Longitudinal Mechanical Properties indoor temperature, with all thickness.

Technology for Heating Processing

Smelting: the feature of aluminium alloy 6082 is the refractory metals Manganese, so melting temperature should be controlled in 740-760℃. Uniform mixing two or more times before sampling to ensure that the metal melt completely, uniform temperature accurately and composition. Stir in the depth of liquid aluminum central, a sample from each left and right sides of the chamber of a stove or furnace were analyzed, and the points converter after folding qualified.

Purification and Casting: After shift the melt into holding furnace, proceed spray and jet refining with nitrogen gas and refining agent, refining temperature: 735-745℃, time: 15 min, and then leave to rest for 30 min. To get a result of degassing, drossing, and melt purification through this process. Rooted in between mold and front there are two filter devices, the front has a foam ceramic filter plate (30 PPI), with 1.4 mm (sieve diameter) glass fiber cloth filter before casting, fully filter to melt in the oxide, slag. Aluminum alloy 6082 casting temperature is much higher than aluminum alloy 6063, the casting speed is low, and water flow is big. The process should be strictly controlled, not beyond the scope, otherwise easy to cause the failure of the casting.

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