Applications of Aluminum Strip in Electronics and Electrical Appliances

In today's rapidly developing electronics and electrical appliance industry, lightweight, high conductivity, and excellent heat dissipation have become core requirements for material selection. Aluminum strip, with its unique physicochemical properties and precise compatibility with different alloy grades, plays an indispensable role in many core components.

Transformer Winding

Transformers are the core components for power transmission and electronic equipment power supply. The winding, as the "heart" of the transformer, directly affect the conductivity and operational stability of the equipment. In the manufacturing of high- and low-voltage winding of dry-type transformers, 1060 aluminum strip is the absolute main material.

1060-O aluminum strip is soft, with a smooth, burr-free surface, allowing for precise conforming to the winding requirements. Simultaneously, its resistivity is ≤0.028, and its conductivity is second only to copper, while its cost is only a fraction of that of copper, significantly reducing the manufacturing cost of transformers.

Transformer winding made with 1060 aluminum strip enable dry-type transformers to possess advantages such as small size, light weight, good insulation performance, and low operating noise, making them widely used in high-rise buildings, commercial centers, residential areas, and other scenarios.

It's worth noting that transformers place extremely high demands on the technical specifications of aluminum strip. Besides conductivity, there are strict standards for burrs, edge curling, side bending, and surface quality. The mature production process of 1060 aluminum strip perfectly meets these requirements, making it an ideal conductive material for transformer manufacturing.

Capacitor Casings

Capacitors are key components in electronic circuits, storing charge and filtering impurities. Their casings need to simultaneously protect internal components, resist electrolyte corrosion, and be easy to process and shape. 3003 aluminum strip roll, with its excellent comprehensive performance, has become one of the preferred materials for capacitor casing manufacturing.

The electrolyte inside capacitors is corrosive. The corrosion resistance of 3003 aluminum-manganese alloy effectively prevents electrolyte erosion, extending the capacitor's lifespan. Simultaneously, 3003 aluminum strip has excellent deep-drawing and stamping properties, allowing it to be easily processed into various complex shapes to meet the needs of different capacitor specifications.

Furthermore, the lightweight advantage of 3003 aluminum strip can reduce the overall weight of electronic devices, aligning with the trend towards miniaturization and portability in electronic products. 3003 aluminum strip also plays a crucial role in the manufacturing of end caps for electronic components such as mobile phone batteries and cylindrical batteries.

Cable Shielding

In the signal transmission process of electronic devices, electromagnetic interference (EMI) and radio frequency interference (RFI) are the "invisible killers" affecting signal quality. The core function of cable shielding is to block these interferences and ensure stable signal transmission, and aluminum strip is an excellent material for making shielding layers.

Aluminum itself has good conductivity, forming an effective electromagnetic shielding barrier that isolates interfering signals outside the cable. Aluminum strip used for cable shielding is typically ultra-thin (0.1mm-0.5mm), allowing for flexible wrapping around the outside of the cable bundle or adhering to the inside of the cable sheath, achieving efficient shielding without increasing the cable's size or weight.

In the connection lines of precision electronic devices such as computers, mobile phones, and LED displays, aluminum strip shielding effectively prevents external interference from affecting signal transmission, ensuring the normal operation of the equipment. Furthermore, in some scenarios, aluminum foil tape (with aluminum strip as the base material) is used to wrap the cable to further enhance the shielding effect and sealing.

Heat Sinks for Electronic Components

Electronic devices generate heat during operation. If this heat cannot be dissipated in time, it can lead to decreased performance, shortened lifespan, and even safety issues. As a core component for heat dissipation, heat sinks require materials with extremely high thermal conductivity. 1060 and 3003 aluminum strips play crucial roles in this area.

1060 pure alum strip boasts high thermal conductivity and is cost-effective, making it a common material for heat sinks of ordinary electronic components. For example, heat sinks in small household appliances and on ordinary circuit boards often use 1060 aluminum strip, which can quickly conduct heat generated by components, ensuring stable equipment operation.

However, in applications such as computer CPU coolers and LED lighting substrates where both heat dissipation and structural strength are crucial, 3003 aluminum strip offers a greater advantage. It not only retains good thermal conductivity but also benefits from the increased strength provided by manganese, allowing it to withstand the processing and installation pressures of heat sinks. Its corrosion resistance also prevents oxidation damage under prolonged high-temperature environments.

In the condenser and evaporator pipes of home appliances such as refrigerators and air conditioners, aluminum strips can also improve refrigeration efficiency by increasing the heat exchange area, achieving a dual function of "heat dissipation + sealing".