Importance et méthodes de contrôle du procédé pour la planéité et la perpendicularité du verre trempé de couverture

Aug 17, 2026

Coverglass est pars valde importantis in tabula tactilis capacitiva. Planities et perpendicularitas sunt duae characteristicae dimensionales criticae in vitro temperato. Directe afficiunt qualitatem coniunctionis, aspectum, et fidibilitatem diuturnam producti finalis.

Planitas

Planities refertur ad aequalitatem superficiei operculi vitrei.

Cur est importans:

Planitas mala creat interstitia inter operculum vitreum et componentes subiacentes (p. ex., tabulam tactilis aut display), quae ducunt ad laminationem imparfetam, bullas aereas, aut defectum functionis tactilis .

Etiam potest causare concentrationem stress localis , faciens vitrum magis pronum ad frangendum sub ictu.

Perpendicularitas

Perpendicularitas refertur ad verticalitatem marginis lateralis ad superficiem inferiorem (id est, deviatonem ab angulo 90°).

Cur est importans:

Mala perpendicularitas affectat idoneitas aptatio inter vitreum tegumentum et medium cingulum aut vasum, quod ducit ad difficultates in coniungendo vel interstitia inaequalia .

In designis aqua-resistentibus aut pulveri-resistentibus, mala perpendicularitas potest ducere ad defectus signorum hermeticitatis .

Summarium: Quamquam planities et perpendicularitas sunt microscopici indici dimensionales, directe afficiunt redidem coniunctionis, aspectum producti, et vitam utilem .

Methodi Controlus Processus ad Asserendam Planitatem et Perpendicularitatem

1. Controlus Planitatis

Scena	Mensurae Controllantes
Secans	Utere praecisis machinis CNC; calibra regulariter verticalitatem ferramenti et aequabilitatem platformae
Gravatio marginum	Control grinding wheel pressure to avoid local overheating and glass deformation
Temperatio	Strictly control heating temperature (typically 680–720°C) and cooling air pressure; ensure uniform temperature distribution inside the furnace
Refrigerans	Keep cooling air grids parallel with consistent air pressure to prevent warpage from uneven quenching
Polire	Maintain uniform polishing wheel pressure and stable workpiece fixturing

Key production checks:

First-article inspection for flatness using feeler gauges or laser flatness testers

2. Perpendicularity Control

Scena	Mensurae Controllantes
CNC Edging	Use high-precision fixtures to ensure secure and vertical glass positioning; regularly calibrate spindle verticality
Chamfering	Maintain consistent chamfer angle and depth to avoid tilted edges
Inspectio	Usus 90° squares an CMM (machinae mensurandi coordinatas) for random edge perpendicularity checks

3. Common Measuring Tools

Parameter	Instrumentum commendatum	Accuratio Solita
Planitas	Feeler gauge, granite surface plate, laser flatness tester	±0.05 mm
Perpendicularitas	90° square, CMM, optical projector	±0.05 mm / 100 mm