High Quality 90 Degree Corner Led Aluminum Profile Channel With Diffuser Cover For Strip Light

How are aluminum profiles processed?
Casting is the first process in aluminum production. The main process is:
Ingredients: According to the specific alloy grades to be produced, the amount of addition of various alloy components is calculated, and various raw materials are reasonably matched.

Melting: Put the prepared raw materials into the smelting furnace according to the process requirements for melting, and effectively remove the slag and gas in the melt through degassing and slagging refining methods.

Casting: Under certain casting process conditions, the molten aluminum is cooled and casted into round casting rods of various specifications through a deep well casting system.

Extrusion: Extrusion is a means of forming profiles. First, design and manufacture a mold according to the profile product section, and use an extruder to extrude the heated round cast rod from the mold.
Commonly used grades of alloys are extruded with an air-cooling quenching process and subsequent artificial aging process to complete the heat treatment strengthening.

Different grades of heat-treatable and strengthened alloys have different heat treatment systems.
Coloring (the process of oxidation is mainly discussed here) Oxidation: The surface of the extruded aluminum alloy profile is not strong, and the surface must be treated by anodizing to increase the corrosion resistance, wear resistance and The aesthetics of appearance.

The main process is:
Surface pretreatment: Use chemical or physical methods to clean the surface of the profile to expose the pure matrix to facilitate obtaining a complete and dense artificial oxide film. It is also possible to obtain a mirror or matte (matt) surface by mechanical means.
Anodizing: The surface pretreatment of the profile will undergo anodization on the surface of the substrate under certain process conditions to form a dense, porous, and strong adsorption film.

Sealing: Sealing the pores of the porous oxide film formed after anodization to enhance the anti-pollution, corrosion resistance and wear resistance of the oxide film. The oxide film is colorless and transparent. Using the strong adsorption of the oxide film before sealing, some metal salts can be adsorbed and deposited in the film pores, which can make the appearance of the profile show many colors other than the natural color (silver white), such as: black, bronze, Golden yellow and stainless steel color, etc.