Core Judgment Standards for Processing Quality

Industry professionals rely on core criteria to assess processed product quality, covering dimensional accuracy, surface integrity and functional performance-all critical to usability and service life.

Dimensional and diagonal tolerances are fundamental to precision. Dimensional tolerance is the allowable deviation from the specified size (excess deviation causes assembly issues), while diagonal tolerance ensures symmetry for rectangular/square products to avoid distortion.

Surface quality is non-negotiable, with key defects including chipping, edge bursting, scratches, bubbles and inclusions. These defects weaken structure, harm appearance and reduce wear/corrosion resistance, often stemming from poor processing or impure materials.

For tempered products like glass, metal, even tempering stress, flatness and bending degree are vital. Even stress resists temperature changes/impacts, while flatness and minimal bending ensure proper installation and performance.

Hollow products require good airtightness (prevents fogging/condensation) and qualified molecular sieve moisture absorption to maintain long-term stability by removing residual internal moisture.

For coated products, coating adhesion (prevents peeling), weather resistance (withstands harsh conditions) and film retention (avoids easy peeling) are critical to appearance and protection.