Hot rolled aluminum strips is a strip of aluminum made from aluminum ingots, processed by high temperature rolling process, with a thickness usually between 0.5~10mm and a width up to 3000mm. Its production process combines thermal deformation and precision control technology, both high strength, corrosion resistance and good processing performance, widely used in construction, transportation, electronics and packaging and other fields. Hot rolled aluminium strip is available in a variety of alloy specifications, with common alloy grades including 1xxx, 3xxx, 5xxx, 8xxx, etc. Among them, 1070 aluminum strip is a kind of industrial pure aluminum, with an aluminum content of more than 99.7%, which has good electrical conductivity, thermal conductivity and corrosion resistance. In addition, hot rolled aluminum strip also has a certain tensile strength, elongation and plasticity, easy to process into various shapes and sizes.

The production process of hot rolled aluminum strips can be divided into the following key steps:
- Casting and milling
Aluminum ingots are cast into billets after melting, followed by milling units to remove surface oxidation and chamfers to ensure clean surface of the billet before rolling and reduce subsequent defects.
- Heating and Equalization
Billets are heated to 600~700°C in a push-pull heating furnace to enhance the plasticity of aluminum. The advanced continuous heating furnace adopts PLC temperature control technology, with a heating efficiency of more than 95% and a time consumption of only 30 minutes.
- Rolling process
Roughing: Multiple passes through vertical and four-roll mills to reduce billet thickness to intermediate specifications (e.g., 20~40 mm) and control plate shape and edge quality.
Finishing: High-speed continuous rolling (up to 120 m/min) by six-roll mill, with tension control and zoned cooling system, final thickness accuracy up to ±0.1 mm.
- Cooling and finishing
After rolling, the aluminum strip is rapidly cooled down by water cooling or air cooling, and then the size and surface flatness are adjusted by the straightening machine, edge cutting machine and other equipments. Fully automatic straightening system can ensure the flatness of ±0.1mm.
- Coiling and Inspection
After the aluminium strip is coiled into rolls, it undergoes surface quality inspection and mechanical property test, and the qualified products enter the storage or downstream cold rolling process.

The characteristics of hot rolled aluminum strips are remarkable, first of all, its energy consumption is lower, the cost is more economical compared to cold rolled aluminum strips. During the hot rolling process, the metal plasticity is high and the deformation resistance is low, which greatly reduces the energy consumption of metal deformation. Secondly, hot rolling can improve the machining process performance of aluminum and alloys, the casting state of coarse grains broken, reduce or eliminate casting defects. However, compared with cold rolled aluminum strips, the surface of hot rolled aluminum strips is rougher and the control accuracy is relatively poor.

Hot rolled aluminum strips are widely used, thanks to its light weight, high strength, corrosion resistance and other excellent properties. In the construction industry, hot rolled aluminum strip is used for roofing, exterior walls and window frames, featuring light weight, corrosion resistance and aesthetic appeal. In the electric power industry, hot rolled aluminum strip is used for cable jacketing and conductive components to enhance the safety and reliability of equipment. In home appliance manufacturing, hot rolled aluminum strip is used in the shells of air conditioners and refrigerators to enhance the durability and aesthetics of the products. In short, hot rolled aluminum strip has become an important and indispensable material in modern industry.