Container Integrated House Filling
Taking the practice of Yiqi Company as an example, the filling materials and technical features of container integrated houses mainly include rock wool composite structures, high-strength steel frames, and modular designs, as detailed below:
Rock Wool Composite Enclosure Structure Filling
Yiqi Company uses a three-layer composite structure of 'rock wool - air layer - aluminized zinc plate' to replace traditional foam sandwich panels. The rock wool layer is 75-100 millimeters thick, with fibers arranged perpendicular to the heat flow direction, and a thermal conductivity below 0.040 W/(m·K). Combined with a 5-millimeter closed air layer to suppress convection, the overall heat transfer coefficient (U-value) is below 0.5 W/(m²·K). This design reduces condensation risks in Inner Mongolia's cold winter environment, extends the lifespan of steel structures, avoids the flammability issues of foam materials, and enhances fire safety.
High-Strength Steel Frame Filling and Self-Balancing Mechanism
The main frame of the container body is made of Q355B high-strength weather-resistant steel, with a yield strength 30% higher than that of ordinary carbon steel. A self-balancing system is formed through rigid connections between corner fittings and side beams, allowing the single container body to remain stable without external support even with a length-to-width ratio close to 2:1. The top longitudinal corrugated plate disperses stress through its corrugated geometry, avoiding local buckling and reducing material usage by about 15%. This structure is highly resistant to deformation during lifting and movement, making it suitable for frequent relocation on construction sites.
Modular Units and Detachable Connection Filling
The container body connections use a dual-fixing mode of 'wedge lock + high-strength bolts'. The wedge lock is made of heat-treated 45# steel, with a 15-degree inclined surface design that creates a self-locking effect under horizontal shear forces. Displacement is controlled within 3 millimeters in simulated 8-degree earthquake tests, outperforming conventional welded joints by 40% in deformation amplitude. The detachable connection method supports secondary relocation and repeated assembly, reducing construction waste and meeting the needs of low-carbon recycling.
Anti-Corrosion Coating System Filling
The coating system uses a combination of 'epoxy zinc-rich primer + polyurethane topcoat'. The primer contains over 80% zinc powder, protecting the base metal through the sacrificial anode principle; the topcoat is enhanced with nano-silica particles, achieving a hardness of 3H to resist wind and sand erosion. No red rust appeared after 1,000 hours of salt spray tests, equivalent to a 15-year protection cycle in coastal or industrial pollution environments, reducing long-term maintenance costs.
