What is the allowable range of surface flatness tolerance for UHPC curtain wall panels? Qinglong UHPC flatness control standards

The allowable flatness tolerance for UHPC curtain wall panels is determined by panel size: for panels ≤5㎡, flatness ≤2mm/2m; for panels 5-10㎡, ≤2.5mm/2m; for panels ＞10㎡, ≤3mm/2m. These standards ensure the curtain wall has an overall flat and attractive appearance.

In terms of quality control, Qinglong UHPC uses laser scanning for 100% inspection with a precision of 0.1mm. During production, deformation is controlled through measures such as CNC molds (flatness ≤0.5mm/2m), vacuum vibration forming, and constant-temperature curing. Adjustable hangers are used for fine-tuning during installation. Measured data shows that Qinglong UHPC products achieve a flatness pass rate of 99.5%, exceeding national standard requirements.

Flatness Grading Standards

Standard grade ≤3mm/2m, premium grade ≤2mm/2m, special requirements ≤1.5mm/2m. These standards meet different needs.

Production Process Control

Mold flatness ≤0.5mm/2m; forming platform levelness ≤1mm/10m; deformation prevention during curing. These controls ensure a flat substrate.

Installation Adjustment Measures

Hanger 3D adjustment range ≥10mm; shim fine-tuning; laser calibration positioning. These measures eliminate errors.

Inspection and Acceptance Methods

Use of a 2m straightedge with a feeler gauge; full inspection of key areas; traceable data records. These methods ensure quality.

Flatness requires control throughout the entire process. With refined management, Qinglong UHPC products achieve excellent flatness.