The differences between aluminum alloy window hinge and zinc alloy window hinges mainly lie in materials, performance, cost, durability, and applications. Below is a detailed comparison:

1. Material:

• Aluminum Alloy Window Hinges: Made from aluminum alloy, which has a low density, good corrosion resistance, and high thermal conductivity. It is suitable for lighter doors and windows.
• Zinc Alloy Window Hinges: Made from zinc alloy, which typically offers better casting properties and higher hardness and strength. It is used in applications that require stronger load-bearing capabilities.

2. Weight:

• Aluminum Alloy Window Hinges: Aluminum alloy has a lower density, making these hinges lighter, which makes them ideal for lighter windows and doors.
• Zinc Alloy Window Hinges: Zinc alloy is heavier and stronger, making it more suitable for heavier windows and doors, capable of withstanding greater pressure and weight.

3. Corrosion Resistance:

• Aluminum Alloy Window Hinges: Aluminum alloy has natural corrosion resistance, especially suitable for humid environments. Aluminum alloy hinges are often treated with anodizing to enhance their corrosion resistance.
• Zinc Alloy Window Hinges: Zinc alloy also offers some level of corrosion resistance, but typically not as high as aluminum alloy. Zinc alloy hinges may require additional surface treatments (such as galvanizing or painting) to improve corrosion resistance.

4. Strength and Durability:

• Aluminum Alloy Window Hinges: Aluminum alloy hinges are relatively weaker and more suitable for lightweight windows. They may wear out over time and generally have lower durability.
• Zinc Alloy Window Hinges: Zinc alloy hinges are stronger, more durable, and have better wear resistance, making them more suitable for heavy-duty windows. They offer better durability and impact resistance over time.

5. Appearance:

• Aluminum Alloy Window Hinges: Aluminum alloy hinges can be anodized in various colors, offering a modern, smooth appearance. They are ideal for applications where aesthetics are a priority.
• Zinc Alloy Window Hinges: Zinc alloy hinges usually have a rougher appearance, although they can be treated with chrome plating or coatings, they tend to have a more utilitarian look.

6. Cost:

• Aluminum Alloy Window Hinges: Due to the relatively low cost of aluminum alloy material and simpler manufacturing processes, aluminum alloy hinges are typically less expensive than zinc alloy hinges.
• Zinc Alloy Window Hinges: Zinc alloy hinges are generally more expensive due to the higher material costs, especially for those with higher strength requirements.

7. Applications:

• Aluminum Alloy Window Hinges: Suitable for lightweight windows, especially where light weight, corrosion resistance, and aesthetic appeal are important, such as in residential and commercial buildings.
• Zinc Alloy Window Hinges: Ideal for heavy-duty windows or industrial applications, such as in large commercial buildings and factories, particularly where higher load-bearing capabilities are needed.

Summary:

Aluminum alloy window hinges are more suitable for lightweight applications that require corrosion resistance and aesthetic appeal, while zinc alloy window hinges are better for environments that demand higher strength and durability.