Aluminum alloy window frame production process

2025,09,18

I.Material Composition: Scientific Proportions Lay the Foundation for Performance

The core materials of aluminum alloy window frames include:

Profile Frame: Utilizes 6063-T5 aluminum alloy profiles, with main frame widths ranging from 50 to 90 series, and a wall thickness of 1.4mm or greater, ensuring wind pressure resistance. For example, 70 series profiles are commonly used in high-rise buildings, and their cross-sectional design utilizes a multi-cavity structure to enhance thermal insulation.

Glass Configuration: Insulated glass (5mm + 12A + 5mm) is standard, and can be upgraded to Low-E coated glass or a triple-glazed, two-cavity structure for significant sound insulation and noise reduction. The use of tempered glass increases impact resistance by five times, meeting safety regulations.

Hardware: Selected branded hardware, including multi-point locking handles, anti-fall hinges, and adjustable pulleys, ensures a durability of over 100,000 openings.

Sealing System: A combination of EPDM rubber sealing strips and neutral silicone sealant achieves national standard airtightness level 8 and watertightness level 6, effectively preventing rainwater penetration.

II. Production Process: Precision Craftsmanship Ensures Quality

Intelligent Cutting

A fully automated sawing center uses profile optimization software to generate cutting programs, achieving ±0.1mm accuracy. For example, the cutting error for a 2-meter profile must be ≤0.15mm, ensuring a perfect 45° angle.

CNC Machining

Milling: A six-joint robot operates the punching and milling center to complete the machining of keyholes, drainage holes, and glue holes, with a hole position deviation of ≤0.2mm.

Center Support Connection: A 3+1-axis CNC drilling and milling machine simultaneously processes two profiles, ensuring alignment of the pin holes and glue holes for enhanced structural strength.

Surface Treatment

Powder coating creates a 0.08mm thick coating with 20 years of weather resistance; fluorocarbon spraying provides self-cleaning functionality, reducing maintenance costs.

III. Machine Production: Intelligent Efficiency Improvement

Intelligent Assembly Line

A closed-loop system consisting of a sawing center, logistics line, punching and milling production line, and a double-head angle-setting machine. For example, after automatic labeling at the sawing center, the logistics line uses camera recognition to assign profiles to punching, milling, or corner assembly stations, with a single line capacity of up to 300 windows per day.

Innovative Corner Assembly Technology

The double-head corner assembly machine utilizes stainless steel positioning plates and high-pressure glue injection technology, keeping the glue seam width within a range of 0.5-1mm, ensuring corner strength ≥3000N. The elastic jointing process uses sealing pillows to fill gaps, eliminating the leakage problem associated with traditional corner assembly.

Quality Inspection

A laser scanner measures profile dimensions in real time, and airtightness testing equipment simulates level 8 wind pressure to ensure a leakage rate of less than 0.5L/(m²·h) per window.

IV. Assembly Process: Modular Design Simplifies Construction

Frame and Sash Separate Assembly

The frame is factory-assembled with corners, hardware pre-installed, and sealing strips applied. Only the glass and sash need to be installed on-site. For example, casement window sashes utilize pre-embedded sliding supports, allowing for fine-tuning through on-site screw adjustments.

Standardized Glass Installation

Use glass spacers and dot-shaped sealant strips for positioning. Apply sealant after evenly overlapping the insulating glass panels on all sides. Keep the gap width to 8-12mm. Allow 72 hours for the glass to cure before trimming any excess glue.

Quick On-Site Installation

Galvanized anchor plates secure the window frame, which is connected to the wall using nails or expansion bolts. The gaps are filled with foam and weather-resistant sealant, reducing the installation time for a single window to just 40 minutes.

V. Customization Advantages: Personalized Needs and Performance Upgrades

Precise Size Adaptation

Using BIM modeling, customizable windows (such as curved and triangular) and oversized sizes (width x height ≤ 3m x 2.5m) can be accommodated, solving installation challenges in non-standard openings.

Performance Enhancement on Demand

Coastal Regions: Upgraded to 316 stainless steel hardware and silicone sealant, offering up to 1000 hours of salt spray corrosion resistance.

Cold Regions: Utilize warm-edge spacers and a triple-glazed, two-chamber structure with a K value ≤ 1.8W/(m²·K), improving energy savings by 40%.

Aesthetic Design Freedom

Over 200 surface treatment options are available, including wood grain transfer and brushed metal, simulating the texture of real wood or the sheen of metal to meet the aesthetic needs of modern architecture.

Author:

Ms. Rebecca Lee

E-mail:

sale01@wddoorwins.com

Phone/WhatsApp:

+86 13502225784