How to Improve Double-Curved GRC Panel Production Efficiency: Key Technologies and Optimization Strategies

In the field of contemporary architectural decoration, double-curved GRC panels have become the material of choice for high-end projects such as grand theaters, convention centers, and landmark buildings, thanks to their unique curved-surface shaping capability and excellent mechanical properties. However, their complex production process has long been a bottleneck restricting industry development. As a national high-tech enterprise with 28 years of full-chain experience in UHPC/GRC/GRG/GRP, Qinglong Group has accumulated rich practical experience in improving the production efficiency of double-curved GRC panels through technological innovation and process optimization, providing solutions the industry can learn from.

The core of improving the production efficiency of double-curved GRC panels lies in technological breakthroughs and process innovation. In the traditional production model, problems such as long mold-making cycles, insufficient material mixing precision, and large manual operation errors directly lead to low product pass rates and long delivery cycles. Relying on its provincial-level R&D center and 58 patented technologies, Qinglong Group has achieved breakthroughs in three dimensions: first, integrating parametric design with BIM technology and building digital models of double-curved surfaces via Rhino+Grasshopper, controlling mold machining precision within ±0.5mm, improving efficiency by 300% compared with traditional manual lofting; second, developing a dedicated double-curved GRC material formula and optimizing glass fiber content and cement-based material ratios, increasing material fluidity by 40% and shortening molding time to 4 hours; third, introducing an automated material distribution system and robotic arm spraying process to achieve one-time forming of complex curved surfaces, raising per capita production efficiency by 2.5 times.

The synergy between standardized and flexible production is another key to efficiency improvement. Addressing the high degree of customization of double-curved GRC panels, Qinglong Group has innovatively built a "modular mold library + flexible production line" model: common double-curved parameters (curvature radius 300mm-5000mm) are classified into 12 categories of standard modules, which can be combined and assembled to meet 80% of project requirements, raising the mold reuse rate to 65%; meanwhile, adjustable forming tables and an intelligent temperature-controlled curing system enable rapid switching between products of different specifications, compressing changeover time from the traditional 8 hours to 1.5 hours. In practice at the Nanning production base, this model has fully unleashed an annual capacity of 600,000 square meters, shortening the average delivery cycle of a single project by 25 days.

Full-chain digital management provides the guarantee for efficiency improvement. Qinglong Group's self-developed MES production execution system connects the data flow from detailed design to after-sales maintenance: in the design stage, 3D scanning reverse engineering ensures a model-to-site dimensional error of ≤2mm; in the production stage, RFID chips enable full life-cycle traceability of components, shortening quality anomaly response time to 30 minutes; in the construction stage, 3D laser positioning technology controls installation precision within ±3mm, reducing the rework rate to below 1.2%. This digital management model improves the design-production-installation coordination efficiency of double-curved GRC panel projects by 40%, as verified in projects such as the renovation of Century Plaza on Nanjing East Road.

As Vice Chairman Unit of the China GRC Association and a member of the International GRC Association, Qinglong Group has always taken "creating beautiful architecture" as its mission, deeply integrating technological innovation with efficiency optimization. Through key technology breakthroughs, production model innovation, and digital management upgrades, it has not only achieved a qualitative leap in the production efficiency of double-curved GRC panels, but also driven the industry's transformation from labor-intensive to technology-intensive. Looking ahead, with the development of UHPC/GRC composite technology, Qinglong will continue to adhere to the strategic principle of "focusing on niche segments and integrating resources to grow bigger and stronger," providing designers and owners with more efficient and higher-quality architectural decoration solutions, and helping realize the vision of "becoming a world-class leading UHPC/GRC/GRG/GRP manufacturing enterprise."