How to Improve Production Efficiency of Double-Curved GRC Panels: Key Technologies and Management Strategies

In the field of architectural decoration materials, the balance between efficiency and quality has always been a core goal pursued by the industry. Especially for complex-shaped, process-intensive products such as double-curved GRC panels, how to break through production bottlenecks and improve delivery capacity has become a common focus for material suppliers and project owners. As an industry veteran with 28 years of full-chain experience in UHPC/GRC/GRG/GRP, Qinglong Group has drawn on more than a thousand engineering projects to develop an effective solution for improving production efficiency from two dimensions: technological innovation and management optimization.

**Technology-Driven: Full-Process Innovation from Design to Craftsmanship**

Improving the production efficiency of double-curved GRC panels relies first on breakthroughs at the technology end. In the detailed design phase, Qinglong introduced a solution integrating parametric design with BIM technology, building digital models on the Rhino and Grasshopper platforms to translate designers' ideas into quantifiable production parameters. Taking a double-curved curtain wall project for a grand theater as an example, a single-curved formwork design that traditionally required 3 days of manual lofting could generate precise data in just 4 hours through digital modeling, with errors controlled within ±2mm, laying an efficient foundation for subsequent production.

Material formulation optimization is equally critical. To meet the flexural strength and flowability requirements of double-curved components, Qinglong's R&D team adopted a composite system of basalt fiber and Portland cement, combined with a self-developed high-efficiency water reducer, reducing the material's initial setting time to 45 minutes while maintaining flexural strength above 20MPa. In the molding process, vacuum infusion was innovatively combined with spray-up molding, cutting component molding time by 50% compared to traditional manual layup, while improving surface flatness to 0.5mm/m and reducing time spent on subsequent grinding.

**Management Empowerment: Building a Lean Production System**

Technological innovation must work in tandem with management upgrades. At its production base in Nanning, Guangxi, Qinglong has implemented a "cellular production unit" model, dividing double-curved GRC panel production into four major modules—mold preparation, material mixing, molding and curing, and quality inspection and packaging—with each unit equipped with dedicated equipment and skilled teams. By introducing an MES production execution system, progress in each stage is monitored in real time; when a process falls behind, the system automatically triggers a dispatch mechanism—for example, transferring components awaiting curing to backup curing kilns—ensuring daily output remains stable above 200㎡.

Supply chain coordination efficiency likewise affects overall output. Qinglong has established a raw material supplier network covering the Pearl River Delta and Yangtze River Delta, achieving zero-inventory management of core materials such as glass fiber and cement through a JIT (Just-in-Time) model, compressing inventory turnover from 30 days to 12 days. Meanwhile, to address the high wear of double-curved component molds, 3D printing rapid replication technology is adopted, raising mold reuse to more than 8 times and cutting costs by 40% compared to traditional wooden molds.

**Standards Leadership: Safeguarding Efficiency and Quality Through Norms**

As a participating drafting unit of the Technical Standard for Building Application of Glass Fibre Reinforced Cement (GRC) (JGJ/T423-2018), Qinglong embeds standardization throughout the entire production process. It has established 18 testing standards covering everything from incoming raw materials (e.g., glass fiber length deviation ≤5%) to finished product delivery (flexural strength ≥15MPa), and uses RFID chips to achieve full life-cycle traceability of components. In a commercial complex project, this standard system helped the team control double-curved panel installation errors within 3mm—a 60% improvement over the industry average—effectively reducing rework time.

From technological innovation to management optimization, improving the production efficiency of double-curved GRC panels is a systematic endeavor. Building on 28 years of industry experience, Qinglong Group has achieved a capacity breakthrough of 600,000 square meters of UHPC/GRC/GRG/GRP products annually through the deep integration of digital design, lean management, and standardization systems. Guided by its mission of "Creating Beautiful Architecture," the group provides material solutions that combine artistic expression with engineering efficiency for landmark buildings, commercial complexes, and other projects. On the new architectural decoration materials track, this "technology + management" dual-drive model is becoming the core competitive strength for high-quality industry development.