Aluminum Disc Used In Home Appliance
Aluminium is a lightweight metal with very good thermal conductivity. It is resistant to many forms of corrosion. Aluminium is commonly available in sheet, cast, or anodized forms, and may be physically combined with other metals.
Sheet aluminium is spun or stamped into form. Due to the softness of the metal, it may be alloyed with magnesium, copper, or bronze to increase its strength. Sheet aluminium is commonly used for baking sheets, pie plates, and cake or muffin pans. Deep or shallow pots may be formed from sheet aluminium.
Cast aluminium can produce a thicker product than sheet aluminium, and is appropriate for irregular shapes and thicknesses. Due to the microscopic pores caused by the casting process, cast aluminium has a lower thermal conductivity than sheet aluminium. It is also more expensive. Accordingly, cast aluminium cookware has become less common. It is used, for example, to make Dutch ovens lightweight and bund pans heavy duty, and used in ladles and handles and works to keep the sides at a lower temperature than the center.
Anodized aluminium has had the naturally occurring layer of aluminium oxide thickened by an electrolytic process to create a surface that is hard and non-reactive. It is used for sauté pans, stockpots, roasters, and Dutch ovens.
Uncoated and un-anodized aluminium can react with acidic foods to change the taste of the food. Sauces containing egg yolks, or vegetables such as asparagus or artichokes may cause oxidation of non-anodized aluminium.
There are four aluminum grades that are most commonly and safely used in cooking:
- 1100 aluminum: Commercially pure, resistant to corrosion and most commonly used in food processing industries. It is an excellent workable metal.
- 3003 aluminum: The most widely used aluminum alloy and with added manganese is up to 20% stronger than 1100 aluminum. Very workable, like 1100, it has good resistance to corrosion.
- 3004 aluminum: heaviest duty aluminum used in the food-service industry.
- 5052 aluminum: Has one of the highest fatigue strengths of all the aluminum alloys and is extremely resistant to water corrosion.
Properties offor cookware include light weight, good tensile strength, fast heat conductivity and excellent corrosion resistance. Aluminium circle weighs only one third of steel and copper discs of the same thickness and size. In other words, it takes much less effort to carry aluminum cookware than cookware of other metals. In comparison to copper and iron, aluminum have a better tensile strength, which makes it especially suitable for key cookware manufacturing processes like spinning and deep drawing. Aluminium circle/disc for cookware has a poorer heat conductivity than copper but much faster conductivity than iron and steel. As for corrosion resistance, stainless steel ranks the first, and aluminum obtains a fame for being corrosion resistant because it’s so active that it forms a protective layer of oxide aluminum quickly with oxygen in the air, keeping inner aluminum away from oxygen. Based on the information above, copper has the best heat conductivity and satisfying tensile strength. Why is there few cookware made of copper, then? Because it’s too heavy and expensive to become a popularized industrial material. On the other hand, aluminum has a cheaper price and excellent integrated properties, becoming a mainstream material for cookware second only to steel.
►Alloy:1050, 1060, 1070, 1100, 3002, 3003, 3004, 5052, 5754, 6061 etc
►Temper: O, H12, H14, H16, H18
►Thickness: 0.3mm – 10mm
►Diameter: 20mm -1500mm
►Surface: Polished, Bright, Anodized