>>>Link: Experts teach you how to identify steel doors and windows This section applies to steel doors and windows, steel soundproof doors, steel fire protection projects. (1) Ensure that the quality of the project steel doors and windows and their accessories must meet the design requirements and relevant standards. The function indexes of soundproof doors and fire doors must meet the design and use requirements. (2) The basic project steel door and window sash installation shall meet the following requirements: Door and window inspection window switch coating
Number of inspections: According to the number of turns of different types of doors and windows, check 20% each, but no less than 5 turns.
Inspection method: Observe and inspect the product certificate and site acceptance record.
Steel doors and windows installation position, opening direction should meet the design requirements.
Inspection method: observation, opening and closing inspection.
The installation of steel door and window frames must be firm, and the quantity, location, burying and connection of embedded iron parts must meet the design requirements.
Inspection method: The gap between the frame and the wall is observed and hand-checked before filling, and the concealed project record is checked.
Qualified: closed tight, flexible switch, no deformation, no upturn. Soundproof door seals well. Fire doors automatically shut off sensitively.
Excellent: Closely closed, flexible switch, no block, rebound, no deformation and upturned. Soundproof door seals well. Fire doors automatically shut off sensitively.
The installation of steel door and window accessories shall comply with the following provisions:
Qualified: complete accessories, firm installation, correct position, flexible opening and closing.
Excellent: Complete accessories, firm installation, correct position, correct, flexible opening and closing, and good appearance.
The quality of gap filling between steel window frames and walls should meet the following requirements:
Qualified: fill in full, filling materials meet the design requirements.
Excellent: filled with dense, smooth surface, filling materials meet the design requirements.
The surface quality of steel doors and windows should meet the following requirements:
Qualified: surface smooth, clean, no pits, pits, no rust; surface paint color uniformity.
Excellent: The surface is smooth, clean, no scratches, no pitting, pits, no rust; the surface coating is uniform in color and the coating is smooth and beautiful.
Inspection method: observation and inspection.