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How do manufacturers address the issue of thermal expansion in metal landscape chairs?
Thermal expansion is a common challenge in metal landscape chairs, especially those exposed to fluctuating outdoor temperatures. Manufacturers employ several strategies to mitigate this issue and ensure durability.
1. Material Selection: High-quality metals like aluminum or stainless steel are preferred due to their lower thermal expansion rates. Powder-coated finishes further enhance resistance to heat-induced warping.
2. Expansion Gaps: Engineers design chairs with strategic gaps or joints to allow natural metal movement without compromising structural integrity.
3. Modular Construction: Some chairs use interlocking components that shift slightly with temperature changes, preventing stress fractures.
4. Thermal Barriers: Insulating materials or composite layers are sometimes integrated into critical stress points to absorb expansion forces.
5. Testing Protocols: Rigorous thermal cycling tests simulate years of outdoor exposure, helping refine designs before production.
By combining these approaches, modern metal landscape chairs maintain their shape and functionality across seasons, offering reliable performance in diverse climates.
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