Sandwich Explosion-proof Cement Steel Plate

Three-Layer Sandwich Structure (Standard 9.5mm Universal Version)

Top and Bottom Layers: 0.5mm hot-dip galvanized perforated steel sheet, with densely serrated round holes on the surface, tightly bonded to the cement core layer after high-pressure extrusion, preventing delamination and peeling, rust prevention, and protection against shattering and splashing.

Middle Sandwich Core Material: 8.5mm high-density asbestos-free fiber cement board, the core energy-absorbing layer, buffering and dissipating the shock wave during an explosion, A1 grade non-combustible, releasing crystalline water at high temperatures for heat insulation and fire resistance;

Forming Process: High-temperature, high-pressure integrated composite, no glue or hollow areas, overall thickness 9.5mm; thickened custom versions 12/15mm suitable for high-explosive-pressure conditions.

Key Performance Advantages

Excellent Explosion Resistance and Energy Absorption: The galvanized steel sheet provides strong impact resistance, while the fiber cement sandwich layer effectively absorbs and dissipates energy when subjected to an explosive shock wave. In extreme cases, the sheet can locally fracture to release pressure rather than collapse entirely.

Lightweight and High-Strength: Compared to traditional reinforced concrete explosion-proof walls, this composite panel weighs only 1/10 of traditional concrete, significantly reducing the structural load on the building while maintaining extremely high impact resistance.

Excellent Fire Resistance and Flame Retardancy: The material is classified as A1-grade non-combustible material, and its fireproof wall system typically has a fire resistance limit of over 4 hours, effectively preventing the spread of fire.

Weather Resistance and Durability: Possesses moisture-proof, corrosion-resistant, and freeze-resistant properties, and its performance does not change with temperature variations, making it suitable for long-term use in various complex industrial environments.

Typical Application Scenarios: This material is mainly used in special industrial locations with flammable and explosive risks:

Chemical and Pharmaceutical Industries: Chemical plant reaction workshops, oil refinery tank areas, hazardous chemical warehouses, and raw material synthesis sections.

New Energy Power: Lithium battery production workshops, energy storage power stations, substations, and high-voltage distribution rooms.

Other High-Risk Environments: Flour mills, aluminum powder plants, wood processing plants, and key military security areas with dust explosion risks.

In practical engineering, this type of sheet material is typically used in conjunction with a light steel keel frame (such as galvanized square tubing), filled internally with insulation materials such as rock wool, forming a modular explosion-proof wall system; During construction, the sheet material is fixed to the keel with self-tapping screws, and the joints require special treatment. Besides being used as explosion-proof partitions, it can also be processed into explosion-proof doors, explosion-proof ceiling panels, explosion-proof smoke exhaust ducts, and cable protection channels, providing integrated safety protection solutions for buildings.

Our factory's sandwich-layer explosion-proof cement steel sheet is manufactured in strict accordance with international fire and explosion protection standards. It adopts a double-layer galvanized steel sheet composite high-density fiber cement core sandwich structure, possessing excellent explosion-proof buffering, long-term fire resistance, corrosion resistance, and moisture resistance. Under explosive impact, it can effectively block flying debris, reducing the risk of safety accidents. The sheet material is lightweight, convenient for dry construction, and can be cut and perforated as needed, making it suitable for various high-risk protection scenarios such as lithium battery plants, chemical workshops, hazardous chemical warehouses, and energy storage power stations; Complete test reports and qualification documents are available. We support customization of different thicknesses and panel specifications, and provide complete sets of installation keels and accessories. We can customize products according to customer engineering drawings, ensuring stable supply and controllable delivery times. We welcome global engineering contractors and building material purchasers to consult and discuss cooperation in creating safe and reliable explosion-proof protection projects.

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