Selection Guide for Color-coated Steel Sandwich Panel Aluminum Accessories: Professional Solutions for Accurately Matching Panels and Scenes (Ⅳ)

Ⅰ. Special node treatment plan

1. Large span expansion joint

Recommended solution:

Double H-slot plug-in system

Elastic silicone seal (displacement ±30mm)

Stainless steel sliding support

2. Lighting strip joint

Recommended solution:

Special PC board connected to T-shaped aluminum

UV protective rubber strip

Anti-heat accumulation ventilation design

3. Lightning protection node

Recommended solution:

Conductive L-shaped slot (resistance < 0.1Ω)

Equipotential connection T-shaped aluminum

Special fasteners for lightning protection strips

Ⅱ. Technical selection checklist

1. Matching check:

Aluminum thickness ≥ 0.8 times the thickness of the color steel plate

Thermal expansion coefficient difference < 15%

2. Performance verification:

Wind pressure test (meet 1.5 times the local basic wind pressure)

Water tightness test (no leakage at 1000Pa pressure)

Air tightness test (air changes ≤ 1.5 times/h)

3. Construction feasibility:

Accessory weight < 3kg/m (manual installation limit)

Standard parts account for > 70% (control costs)

Through systematic aluminum accessory selection, the overall performance of the color steel sandwich panel building can be improved by more than 30%, and the maintenance cycle can be extended by 5-8 years.

●Guangzhou Xincheng New Materials Co., Limited has been focusing on the production and sales of color-coated steel sandwich panels and related accessories since 2012, providing one-stop service.

Welcome to contact us to get more information!