Rockwool Color Steel Sandwich Panel

Rockwool Color Steel Sandwich Panel mainly serves three core customer groups:

① Electronic semiconductor companies (accounting for 45%) rely on its anti-static and particle control properties to build Class 1000 clean rooms;

② Cold chain logistics operators (accounting for 30%) use 120kg/m³ high-density core materials to achieve -25℃ constant temperature storage;

③ Cultural and educational institutions (accounting for 15%) use perforated sound-absorbing panels to build theaters and recording studios. In the medical field, Zhejiang University Affiliated Hospital gives priority to purchasing its 100% inorganic material characteristics to meet the sterile environment requirements of the operating room.

In the modern building envelope system, the excellent quality of Rockwool Color Steel Sandwich Panel relies on four core technical guarantee systems to provide all-round support for product performance.

1. Intelligent production process system

color steel sandwich panels adopts a fully automated production line, and the PLC control system realizes precise control of the entire process from color steel plate pretreatment, rock wool core material filling to composite molding. In the raw material ratio link, the system automatically adjusts the rock wool bulk density according to the thickness of the plate to ensure uniform core material density. For example, the production line of a well-known manufacturer is equipped with a laser thickness gauge to monitor the plate thickness error in real time within ±0.5mm. At the same time, a two-component polyurethane adhesive is used to ensure that the peel strength of the color steel plate and rock wool is ≥0.15MPa through constant temperature curing technology, which far exceeds the national standard requirements.

2.3D fire protection system

As a Class A non-combustible material, the fire resistance of Rockwool Color Steel Sandwich Panel is achieved through a triple design:

Flame retardancy of core material : After hydrophobic treatment, the melting point of rock wool fiber reaches above 1000℃, and no toxic gas is produced when exposed to fire;

Structural sealing : Tongue-and-groove joint design is used, and fireproof sealant is used to fill the joints to form a continuous fireproof barrier;

Node reinforcement : In fire-prone areas such as corners, metal edging and fire isolation zones are added to increase the fire resistance limit to more than 2 hours. Tested by the National Fixed Fire Extinguishing System and Fire-Resistant Component Quality Supervision and Inspection Center, the average temperature rise of the back-fire surface of the board in the standard fire resistance test was only 45°C.

3. High-efficiency thermal insulation system ( thermal insulation performance is based on three major technological innovations )

Core material optimization : basalt wool fiber is selected, and its thermal conductivity is ≤0.040W/(m・K), and vacuum packaging technology is used to reduce air convection;

Structural design : Adopting "sandwich" composite structure, the color steel plate and rock wool form a broken bridge effect to block the conduction of thermal bridges;

Reflective coating : The outer panels can be equipped with high reflectivity coating (solar reflectance ≥ 0.8), which can reduce the panel surface temperature by more than 20°C in summer. Actual engineering tests show that the heat transfer coefficient of 75mm thick panels can reach 0.35W/(㎡・K), meeting the energy-saving standards in cold regions.

4. Modular structural support system

Optimized mechanical properties : Color-coated steel plates use high-strength galvanized aluminum substrates (yield strength ≥ 550MPa) and are combined with rock wool core materials to form a T-shaped cross-section with a bending bearing capacity of 2.5kN/m;

Earthquake-resistant connection design : hidden hook connection is used to allow the plate to deform by 3% without falling off under earthquake action;

Wind load enhancement : Finite element analysis is used to optimize the spacing between plate ribs, and the maximum wind resistance reaches 1.8kPa, which is suitable for coastal typhoon areas. The measured data of a port project shows that the plate remains intact in a 12-level typhoon.

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