Polyurethane sandwich panel manufacturer

Cold storage panel installation is a core process in cold storage engineering, and the details of the construction directly determine the insulation effect, energy consumption, and service life of the cold storage. Many cold storage facilities experience problems such as cold leakage, frost formation, deformation, and water leakage later on, and 80% of these are caused by improper installation.   1. Pre-construction preparation. Verify the panel parameters in advance, confirm the panel thickness and flame retardant rating according to the temperature control requirements of the cold storage, and check the panel surface for dents, delamination, and damage. At the same time, clean the construction ground, ensuring it is flat, dry, and free of debris. For low-temperature cold storage, a moisture-proof layer must be laid in advance to prevent the floor from stretching the panels due to freezing. Prepare specialized sealant, angle aluminum, and pressure strips in advance; do not use ordinary household sealing materials.   2. The installation of the base plate and walls requires control over flatness and sealing. First, locate and mark the installation points of the panels accurately, ensuring overall horizontal and vertical alignment. When installing the bottom panels, ensure even gaps are left, and apply a full layer of special low-temperature sealant to all joints to prevent hollow gaps. This is a crucial step in preventing cold bridging and condensation. After the wall panels are assembled, reinforce them with strips and angle brackets immediately, paying special attention to sealing edges and corners to prevent cold air leakage. Continuously check verticality throughout the installation process; deviations must be kept within specifications.   3. Top panel installation is the most error-prone stage. Top panel joints must not have upward-facing gaps. All joints must face inwards, and the sealant must be full, dense, and free of breaks or air bubbles. Reinforcing brackets must be installed at load-bearing locations on the top panels to prevent them from being suspended and deformed or detached under long-term stress. Avoid drilling holes for pipes; ensure all openings are properly sealed to prevent cold air leakage.   4. Pay close attention to finishing details and acceptance procedures. Irregularly shaped areas such as doors, vents, and access panels require meticulous sealing to prevent air leakage from dead corners. After all panels are installed, apply a final coat of sealant, inspect all seams and edges, and repair any omissions or defects. Finally, conduct a no-load cooling test to observe for frost, water seepage, abnormal temperature differences, etc. Once everything is confirmed to be in order, the project is considered complete and ready for handover.   In summary, proper material selection, standardized splicing, and meticulous sealing are essential for cold storage panel installation. This not only improves the insulation stability of the cold storage and reduces future energy consumption but also minimizes rework and rectification, enhancing the project's delivery reputation.

The cold storage sandwich panels are generally refers to the PU/PIR sandwich panels,which has best thermal insulation performance,are widely used in various low-temperature roofs and walls.   Common applications as below:   1. Various cold storage systems: ambient temperature cold storage, low temperature freezing storage, constant temperature and humidity warehouses, pre-prepared food warehouses and kitchens, etc.   2. Food factories and workshops: fruit and vegetable preservation and processing workshops, poultry slaughterhouses, aquatic product processing workshops;   3. Various cold chain logistics warehouses: logistics park cold storage, ambient temperature cold chain warehouses, low temperature cold chain warehouses, cold chain distribution centers, etc.   4. Agricultural products and aquaculture: crop seed storage warehouses, low temperature mushroom storage warehouses, agricultural product storage warehouses; low temperature aquatic and seafood storage warehouses, etc.;   5. Pharmaceuticals and chemicals: vaccine cold storage, pharmaceutical storage cold storage, low temperature sterile laboratories, biobanks, low temperature chemical storage, explosion-proof cold storage, etc.;   6. Commercial and mobile cold storage: container mobile cold storage, refrigerated trucks, supermarket cold storage rooms, frozen warehouses, etc.

Sandwich panels, used for walls and roofs, are widely used in various steel structure factories, large warehouses, clean rooms, logistics warehousing, and cold storage facilities due to their excellent thermal insulation performance, high strength, good waterproof performance, light weight, easy installation, and short construction period. The significant advantages of sandwich panels are as follows:   1. Excellent thermal insulation performance: Sandwich panels typically use EPS, rock wool, and polyurethane as insulation core materials, providing excellent insulation performance without the need for additional insulation layers;   2. High structural strength, wind resistance, and strong corrosion resistance: Sandwich panels use color-coated galvanized steel sheets as the base material, resulting in high structural strength and good wind resistance. The surface can be coated with highly weather-resistant and fluorocarbon coatings, offering good corrosion resistance and aging resistance;   3. Excellent sound insulation and fire resistance: Different sandwich panel core materials can be selected to meet different application requirements. For example, large logistics warehouses can choose Class A fire-resistant rock wool core materials; large computer rooms can choose glass wool core materials with good sound insulation; and cold storage can choose polyurethane core materials with better thermal insulation performance.   4. Good sealing and waterproofing: Sandwich panels are generally sealed with tongue and groove joints and sealant, resulting in good waterproofing performance.   5. Lightweight, quick construction, and short construction period: Compared with traditional wall panels, sandwich panels are lighter and suitable for light steel structures and roof and wall renovations. They can be directly assembled on-site, simplifying construction, shortening the construction period, and greatly reducing labor costs.   6. Beautiful appearance and high cost performance: The surface of sandwich panels is made of color steel plate, which can be designed and selected in different colors, making them beautiful and elegant. Furthermore, color steel plates have a long service life, are easy to maintain, and offer high overall cost performance.