⒈ The surface of doors and windows should not have obvious scratches, scratches, bumps and other defects.
⒉There should be no obvious color difference between the colored surfaces of the adjacent rods of doors and windows.
3. There should be no aluminum chips, burrs, oil spots or other stains on the surface of doors and windows, and there should be no overflowing adhesive at the assembly connection.
(2) Types and specifications of aluminum alloy doors and windows
1) Products of aluminum alloy doors and windows
Table 2-71 Product code of aluminum alloy door dealer
Product name Casement aluminum alloy window Casement aluminum alloy door Sliding aluminum alloy window Sliding aluminum alloy door
With Yarn Fan Without Yarn Fan With Yarn Fan Without Yarn Fan With Yarn Fan Without Yarn Fan With Yarn Fan Without Yarn Fan
Code PLC APLC PLM SPLM TLC ATLC TLM STLM
Note: The content of flush aluminum alloy window is also applicable to sliding shaft casement window HPLC, fixed window GLC, top-hung window SLC, bottom-hung window XLC, middle-hung window CLC, vertical rotating window LLC.
2) Specifications and dimensions.
3) Aluminum alloy doors and windows are divided into three performance indicators: air pressure strength, air permeability (airtightness) and rainwater penetration (watertightness), which are divided into A (high-performance doors and windows), B (medium-performance doors and windows), 1 C (low-performance doors and windows) ) three categories. According to the sound insulation performance of air, it is divided into four grades, and those with a sound insulation of 2 sdB are sound insulation doors and windows. According to the thermal insulation performance (heat insulation performance), it is divided into three grades, and the second thermal resistance value) is 0.25m' K/W for thermal insulation doors and windows). The treatment methods for the surface film of aluminum alloy doors and windows include anodic oxidation and anodic oxidation; composite film Law.
(3) Aluminum alloy doors and windows product marking rules: When users choose aluminum alloy doors and windows, they should first choose the appropriate doors and windows according to the size of the room. Specifications and dimensions, according to the requirements of use, select the appropriate type of doors and windows. Secondly, the various performance requirements of doors and windows are determined according to the use parts of doors and windows (such as inner doors and outer doors), such as windows and doors, which require certain thermal insulation, sound insulation, watertightness and airtightness requirements. Finally, the user chooses the appropriate door and window frame color according to his own preferences and the matching with other decorative parts.