1. The surface of doors and windows should be free from obvious scratches, abrasions, dents, and other defects.
2. There should be no obvious color difference between the colored surfaces of adjacent door and window components.
3. The surface of doors and windows should be free from aluminum shavings, burrs, oil stains, or other dirt, and there should be no excess adhesive at the assembly joints.
(2) Types and Specifications of Aluminum Alloy Doors and Windows
(1) Products of Aluminum Alloy Doors and Windows
Table 2-71 Product Codes for Aluminum Alloy Doors
Product Name: Casement Aluminum Alloy Window, Casement Aluminum Alloy Door, Sliding Aluminum Alloy Window, Sliding Aluminum Alloy Door
With Screen, Without Screen, With Screen, Without Screen, With Screen, Without Screen
Code: PLC, APLC, PLM, SPLM, TLC, ATLC, TLM, STLM
Note: The content for flush aluminum alloy windows also applies to sliding casement windows (HPLC), fixed windows (GLC), top-hung windows (SLC), bottom-hung windows (XLC), center-hung windows (CLC), and pivot windows (LLC).
(2) Specifications and Dimensions
(3) Aluminum alloy doors and windows are classified into three categories: A (high-performance doors and windows), B (medium-performance doors and windows), and C (low-performance doors and windows) based on three performance indicators: wind pressure strength, air permeability (air tightness), and rainwater permeability (water tightness). They are also classified into four levels based on airborne sound insulation performance, with sound insulation exceeding 2 dB considered soundproof doors and windows. They are also classified into three levels based on thermal insulation performance (heat insulation performance), with thermal insulation doors and windows having a thermal resistance of 0.25 m² K/W. The surface film treatment methods for aluminum alloy doors and windows include anodizing and composite film methods.
(4) Aluminum alloy door and window product marking rules: When selecting aluminum alloy doors and windows, users should first choose appropriate doors and windows based on the room size and specifications, and then select the appropriate type of doors and windows according to usage requirements. Secondly, they should determine the various performance requirements of the doors and windows based on their intended use (e.g., interior doors, exterior doors), such as the requirement for windows to have certain heat insulation, sound insulation, water tightness, and air tightness. Finally, users choose the appropriate door and window frame color based on their own preferences and how it matches other decorative elements.
