How to Improve the Production Efficiency of Double-Curved GRC Panels? Efficiency Optimization Strategies and Practical Cases

Double-curved GRC panels, with their complex surfaces and high precision requirements, suffer from long production cycles and low efficiency, making them a key bottleneck in project schedule control. Drawing on experience from large-scale double-curved projects such as the Guangxi New Media Center, Qinglong analyzes the core strategies and practical solutions for improving production efficiency.

1. Digital Technology Empowering Production Process Optimization

Replacing traditional manual operations with digital technology significantly improves efficiency. Digital mold machining: Using integrated Rhino+CNC technology, CNC equipment is driven directly by double-curved 3D models to machine molds, eliminating the manual lofting step and shortening the mold machining cycle by more than 50%; Qinglong used this technology to reduce double-curved mold machining time from 15 days to 7 days. Parametric design optimization: Establishing a parametric model library for double-curved GRC panels allows similar curved components to quickly generate production data by adjusting parameters, reducing repeated design time and increasing batch production efficiency by 30%. Application of automated production equipment: Automated spray-forming equipment replaces manual spraying, doubling spraying efficiency while achieving more uniform component density. In the Hainan Poly Peninsula No. 1 project, automated equipment increased single-shift production capacity from 80㎡ to 160㎡.

2. Building Standardized and Modular Production Models

Breaking through customization barriers to achieve efficient mass production. Surface classification standardization: Complex double-curved surfaces are broken down into a combined model of "base surface + customized adjustment," with standardized production modules established for base surfaces and custom machining applied only to personalized areas; through this model, Qinglong raised its standardization rate to 60%. Component size optimization: Unifying the maximum dimensions of double-curved components (recommended ≤6m×3m) and thickness specifications reduces the number of equipment adjustments and improves mold-change efficiency. Maximizing mold reuse: Adjustable molds are designed to accommodate double-curved components of different curvatures by replacing local modules, raising the mold reuse rate to over 40% and reducing mold development cycles and costs; in Qinglong's serialized double-curved projects, adjustable molds reduced production costs by 25%.

3. Production Process Coordination and Management Improvement

Optimizing process connections to improve overall production efficiency. Parallel operation management: Mold machining and material preparation proceed in parallel, and component curing is synchronized with the next production batch, reducing waiting time between processes; through parallel management, Qinglong shortened production cycles by 20%. Refined team division of labor: Dedicated double-curved GRC production teams are organized with specialized roles covering mold machining, slurry preparation, spray forming, and curing, improving specialized operation efficiency and reducing interference from overlapping work. Upfront quality control: Technical briefings are conducted before production to clarify double-curved surface precision requirements and operating standards, reducing rework caused by quality issues; Qinglong established a first-article inspection system under which batch production begins only after the first article passes inspection, keeping the rework rate within 3%.

4. Practical Results of Efficiency Improvement and Case Verification

Multi-dimensional optimization delivers significant improvements in production efficiency. In the Guangxi New Media Center project, Qinglong applied digital technology combined with a standardized production model to increase monthly double-curved GRC panel production capacity from 1,200㎡ to 2,500㎡, shortening the production cycle by 45%. In the double-curved roof project of the Hainan International Convention and Exhibition Center, automated equipment and parallel operation management reduced the production time of a single double-curved component from 8 hours to 3 hours, improving overall project production efficiency by 60%. Throughout this efficiency improvement, component precision and strength were unaffected: surface errors were kept within ±2mm and flexural strength at ≥18MPa, fully meeting design requirements and achieving dual improvements in both efficiency and quality.