Aluminum circle disc for pressure cooker

3003 O-temper aluminum circles are primarily used in the manufacture of pressure cooker lids and bodies. 3003 aluminum circles can withstand high pressure and high temperatures, making them suitable as structural materials for pressure cookers.

Characteristics of 3003 Aluminum Circles for Pressure Cookers

• 1. Material: 3003 aluminum alloy is an aluminum-manganese alloy known for its excellent corrosion resistance and good workability. The O-temper state refers to the soft, ductile condition of the aluminum after annealing, making it suitable for deep drawing and forming.
• 2. Chemical Composition: The main components include aluminum (98%), manganese (0.8%~1.5%), and other minor elements, ensuring stability and durability in high-temperature environments.
• 3. Physical Properties: 3003 aluminum circles in O-temper state have good ductility and toughness, capable of withstanding high pressure and temperature, making them suitable for pressure cooker structural materials.

Specifications of Pressure Cooker Aluminum Circle Discs

• Alloy: 3003
• Temper: O
• Thickness: 0.3mm to 6.0mm, mostly 0.5mm to 4.5mm
• Diameter: 150mm to 650mm

Advantages of 3003 Aluminum Circles

• 1. Strong Corrosion Resistance: 3003 aluminum alloy has excellent corrosion resistance, able to withstand moisture and acidic or alkaline substances in food, extending its service life.
• 2. Lightweight: Compared to other metals, aluminum circles are lighter, making them easier to handle and move.
• 3. Excellent Workability: Suitable for deep drawing, cutting, and other processing techniques, ensuring that cookware designs and structures meet practical requirements.
• 4. Good Thermal Conductivity: The high thermal conductivity of aluminum allows for rapid and even heat distribution, improving cooking efficiency.

Applications of 3003 Aluminum Circle Discs

• Lids: Lids made from 3003 aluminum circles can withstand high pressure and effectively seal gases inside the pot, ensuring cooking performance and safety.
• Bodies: The lightweight nature of aluminum circles makes the pot bodies easy to handle and ensures even heat dissipation, aiding in quick heating and energy efficiency.

Processing Technology of Pressure Cooker Aluminum Circle Discs

• 1. Melting: Aluminum alloy ingots are melted into a liquid state, with alloying elements added and mixed thoroughly.
• 2. Casting: The molten aluminum is cast into billets for aluminum circles.
• 3. Hot Rolling: The aluminum billets are hot rolled into aluminum plates of the required thickness.
• 4. Cold Rolling and Annealing: The plates are cold rolled into thinner sheets and annealed to achieve the O-temper state.
• 5. Punching: The annealed aluminum sheets are punched into circular discs.

3003 O-temper aluminum circles, with their excellent workability, good corrosion resistance, and lightweight characteristics, are widely used in the production of electric pressure cookers and rice cookers, providing a strong and durable material base for kitchen appliances.

Pressure cooker aluminum circle disc 3003 Chemical Composition

Pressure cooker aluminum circle disc 3003_- Mechanical Properties