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What are the most common manufacturing defects found in landscape chairs, and how are they detected during quality control?
Landscape chairs, designed for outdoor use, must withstand harsh weather conditions and frequent use. However, manufacturing defects can compromise their durability and safety. The most common defects include:
1. Warping or Cracking: Poor material quality or improper curing can cause warping or cracks in plastic or wooden chairs. Quality control checks for uneven surfaces or visible fractures.
2. Weak Welds or Joints: Metal chairs may have weak welds, leading to instability. Inspectors perform stress tests to ensure joints can handle weight.
3. Paint or Coating Flaws: Fading, peeling, or uneven coating affects aesthetics and weather resistance. QC teams use visual inspections and adhesion tests.
4. Loose Fasteners: Screws or bolts may loosen over time. Torque tests ensure all fasteners are securely tightened during assembly.
5. Structural Imbalance: Chairs that wobble or tilt indicate poor design or assembly. Stability tests are conducted to verify even weight distribution.
Advanced detection methods like X-ray scanning (for metal frames) and UV exposure tests (for coatings) are also employed. By identifying these defects early, manufacturers ensure long-lasting, safe outdoor furniture for consumers.
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