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

Ⅰ.The core role and selection logic of aluminum accessories for color steel sandwich panels

---The aluminum accessories system for color steel sandwich panels is an important part of the building envelope. It not only bears the decorative closing function, but also is a key factor in ensuring the air tightness, water tightness and structural safety of the building. Scientific selection of aluminum accessories requires comprehensive consideration:

• Core material characteristics (physical property differences of EPS/PU/rock wool)

2.Building parts   (roof/wall/corners/joints, etc.)

3.Environmental requirements (temperature/humidity/corrosiveness/cleanliness, etc.)

4. Mechanical properties (wind pressure resistance/seismic resistance/load-bearing requirements)

Ⅱ. Mainstream aluminum accessories types and structural characteristics

1. T-shaped aluminum (T-shaped aluminum)

1) Structural features: "T"-shaped cross section, double-sided slot design

2) Core functions:

--Board seam connection and transition

--Hidden screw fixing point

--Adjustment of thermal expansion and contraction displacement

3)Technical parameters:

--Conventional width 50-150mm

--Aluminum alloy thickness 1.0-2.0mm

--Applicable plate thickness 30-200mm

2. L-shaped slot (angle aluminum)

1) Structural features: 90° right-angle bending structure

2) Core functions:

--Edge trimming at the turning point between wall and roof

--Edge trimming of door and window openings

--Anti-collision protection

3)Technical parameters:

--Leg length varies from 40-120mm

--Optional design with rubber strip slot

--Surface treatment (anodizing/fluorocarbon spraying)

3. U-shaped groove (buckle groove aluminum)

1)Structural features: U-shaped cross section, double-sided inner curling

2)Core functions:

--Board end sealing treatment

--Decorative line closing

--Cable routing protection

3)Technical parameters:

--Depth 20-80mm

--Customizable opening rate (ventilation requirements)

--Fire rating matching (Grade A/Grade B)

4. H-shaped groove (double groove aluminum)

1) Structural features: parallel double groove structure

2)Core functions:

--Large span plate seam connection

--Curtain wall system transition

--Expansion joint treatment

3)Technical parameters:

--Bearing capacity ≥300kg/m

--Thermal deformation coefficient ≤1.5mm/m·℃

--EPDM rubber strips can be installed at special nodes

5. External arc aluminum (R angle aluminum)

1) Structural features: arc section design

2)Core functions:

--Clean room no dead corner treatment

--Airflow optimization (reducing wind resistance)

--Safety protection (anti-scratch)

3)Technical parameters:

--Arc radius R30-R150 optional

--Antibacterial coating optional (medical scene)

--Surface finish Ra≤0.8μm

★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.

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