Is aluminum rod by hot melt extrusion , to obtain different cross-sectional shapes of an aluminum material . Aluminum production processes including casting, extrusion and color ( color include: oxidation, electrophoresis coating, fluorine carbon spraying, powder coating , etc. ) 3 process .
Aluminum use is divided into :
An industrial aluminum profile : mainly used in aircraft, trains, industrial radiators , automotive, electrical and so on.
2 Aluminum Profiles : mainly used in construction windows and doors , curtain wall , interior decoration and building structure with aluminum .
Divided by aluminum surface treatment :
1 anodized aluminum : anodized surface profile , electrolytic coloring or organic coloring.
2 . Electrophoretic coating Aluminum Plates: anodized surface profile and electrophoretic coating composite processing .
3 powder coating aluminum: the surface profile thermosetting organic polymer powder coatings do .
4 PVDF coating aluminum: the surface profile to polyvinylidene fluoride varnish for coating. Currently, the widespread use of thermal profiles , is to take the wear strip or mastic compound of an aluminum alloy profiles.
Key indicators :
1 appearance: anodized surface profile does not allow electric burns, shedding affect the use of oxide film defects ; electrophoresis, powder paint after painting fluorocarbon profiles should be uniform , clean , smooth, not allowed to have wrinkles , cracks , bubbles, flow marks , inclusions and paint loss and other defects affect the use , but in the end 80mm profiles within the permitted without local film . Aluminum Profiles appearance quality affect construction decorative effect , so the factory must have a profile surface coating , to avoid transportation , stacking process surface scratches, bumps and corrosion. Some of aluminum profiles on the market there is a similar waterlines shaped cavity , moldy spots phenomenon , reflecting the production process defects.
(2) Thickness: the thickness profiles are the main factors affecting strength of machined parts , one of the main profile is the force in the project area . For example, the main profile outside the window specified minimum nominal wall thickness of not less than 1.4mm.
3 Thickness : Extruded good aluminum alloy, its surface is not strong corrosion resistance is required in order to increase the surface treatment of aluminum corrosion resistance , abrasion resistance and exterior aesthetics . Anodized aluminum thickness level is divided into AA10, AA15, AA20, AA25, electrophoretic coating aluminum thickness level is divided into A. B. S, powder-coated aluminum decorative surface coating minimum local thickness ≥ 40um, PVDF coating aluminum decorative surface paint coating thickness due to the different types , with different requirements , two Tu average thickness ≥ 30um, three Tu average thickness ≥ 40um, four Tu average thickness ≥ 65um.
4 . Chemical composition, mechanical properties: different grades of aluminum profiles , delivery status and its chemical composition, mechanical properties of technical parameters are different , the customer should control standards ( contract ) one by one check .
5 colors and color : different grades, there is a supply state of the alloy color and color difference. Suggested the use of alloy grades and supply state, fully consider the color and color inconsistencies on the building structure.
6 Resistance to salt spray corrosion , wear resistance, weatherability , mortar , etc. : This is an important technical parameters of aluminum profiles , aluminum profiles reflect performance , affect use.
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