Aluminium Bare Foil for Air Conditioners

Bare aluminum foil for air conditioners refers to aluminum foil that has not undergone hydrophilic, epoxy, or other functional coating treatments; it is typically supplied with a standard rolled finish. It serves as a critical base material for manufacturing fins used in air conditioners, refrigeration equipment, and heat exchangers—including residential and central air conditioning systems, automotive AC units, condensers, المبخرون, مزيلات الرطوبة, مضخات الحرارة, and commercial refrigeration equipment. Haomei Aluminum’s bare aluminum foil features consistent thickness, excellent flatness, superior stamping performance, and high surface cleanliness, meeting the demands of continuous processing operations such as high-speed fin stamping, tube expansion, التشفيه, and assembly.

In air conditioner heat exchangers, the bare aluminum foil is stamped to form corrugated, louvered, or slit fins, which are then combined with copper or aluminum tubes to create high-efficiency heat exchange assemblies. Key material properties—such as thickness, hardness, حالة السطح, and microstructural uniformity—directly impact stamping yield rates, fin pitch consistency, heat exchange efficiency, and the overall service life of the unit.

Common Alloy Grades of A/C Aluminium Bare Foil:

Haomei Aluminum produces bare aluminum foil using alloys such as 1100, 1200, 3003, و 3102. We recommend specific material solutions based on the fin structure, stamping equipment, and end-use environment.

1100 aluminum foil offers high purity, excellent thermal conductivity, ليونة جيدة, and strong corrosion resistance, making it suitable for fins in standard residential air conditioners and general refrigeration equipment. This alloy provides stable processing characteristics, ideal for complex punching, التشفيه, and shallow drawing operations.

1200 aluminum foil also belongs to the commercially pure aluminum series; it offers good thermal conductivity and formability, and is commonly used for standard heat exchanger fins and various refrigeration equipment components.

3003 aluminum foil is an Al-Mn (aluminum-manganese) alloy with a manganese content typically ranging from 1.0% إلى 1.5%, offering higher strength than the 1000-series pure aluminum alloys. This material is suitable for air conditioning and refrigeration equipment requiring high fin rigidity, deformation resistance, والقوة الميكانيكية; it is also applicable to heat exchanger structures involving large dimensions or high wind-pressure environments.

3102 aluminum foil offers excellent strength, المقاومة للتآكل, والقابلية للتشكيل, making it widely used in automotive air conditioning, commercial refrigeration, and high-efficiency heat exchangers. It is a common choice for projects requiring enhanced fin support strength while maintaining good stamping processability.

Tempers of A/C Aluminium Bare Foil:

Common supply tempers include O, H14, H22, H24, و H26.

The O-temper material is softer and suitable for products requiring significant stamping deformation or complex fin structures.

The H22 and H24 tempers balance strength with workability and are frequently used for رقائق الألومنيوم مكيف الهواء. Higher-hardness tempers are suitable for applications demanding specific fin stiffness and post-forming stability. The specific temper is determined based on factors such as press tonnage, mold structure, fin aperture, and collar height.

Specification of A/C Aluminium Bare Foil:

Bare aluminum foil for air conditioner fins is typically supplied in coil form. Haomei Aluminum offers a standard thickness range of 0.095 مم ل 0.200 مم; thinner gauges (0.095–0.120 mm) are commonly used for residential air conditioner fins, while thicker gauges (0.130–0.200 mm) are suitable for commercial air conditioners, مضخات الحرارة, and certain high-strength heat exchangers.

Standard widths range from 300 مم ل 1,250 مم, with customization available based on the customer’s stamping equipment, effective mold width, and slitting requirements. Inner coil diameters are typically available in 150 مم, 300 مم, 405 مم, أو 505 mm specifications; coil weight, outer diameter, and packaging methods can be tailored to the load-bearing capacity of the automatic uncoiling equipment.

For aluminum foil for air conditioner fins, factors such as thickness tolerance, width tolerance, edge quality, and flatness control are critical. In high-speed stamping production, excessive thickness fluctuations can lead to mismatched die clearances, thereby compromising punching quality and fin height. Issues such as edge burrs, wavy edges, camber, or uneven coil tensioning can cause feeding misalignment, strip breakage, or an increase in stamping scrap. Consequently, consistent coil performance holds greater practical value than a single theoretical strength metric.

The processing of air conditioner fins involves several stages: uncoiling, feeding, punching, drawing, التشفيه, قطع, and tube expansion. Haomei Aluminum focuses on alloy composition control, melt cleanliness, rolling thickness precision, annealing uniformity, and finished coil flatness during the production of bare aluminum foil for air conditioners, aiming to enhance material stability during continuous high-speed stamping. The aluminum foil features a uniform, clean surface free from significant oil stains, corrosion spots, indentations, الخدوش, ثقوب, علامات لفة, or other defects that would impair stamping performance.

Practical application experience shows that while aluminium bare foil possesses inherent corrosion resistance due to its natural oxide layer, heat exchangers operating in environments with high humidity, heavy salt spray, industrial pollution, or coastal exposure require an assessment of whether specialized foils—such as hydrophilic, blue-coated, gold-coated, or epoxy anti-corrosion aluminum foils—are necessary based on actual operating conditions.

With its stable processing performance and customizable specifications, Haomei Aluminum’s bare aluminum foil provides reliable fin material support for manufacturers of air conditioning and refrigeration equipment. Whether for residential air conditioners, commercial HVAC systems, or automotive and industrial heat exchange equipment, the selection of the appropriate alloy, لين، لطف، هدأ, and thickness configuration is fundamental to achieving efficient heat exchange and stable production.