ما هي عملية إنتاج GRC؟ تحليل كامل لعملية التصنيع

The GRC production process directly affects product performance and consistency. High-quality GRC uses processes such as spraying, premixing, and mesh laying, with the optimal solution selected according to product requirements. Through 28 years of process optimization, Qinglong GRC has developed a precise production system.

In the Shenzhen Pingshan High-tech Zone Comprehensive Service Center project, Qinglong used an improved spraying process to produce double-curved GRC panels: automated spraying by robotic arms kept fiber content at 4.5%-5% with distribution uniformity above 95%; vacuum dewatering reduced the water-cement ratio to 0.30, improving density; low-temperature steam curing (65°C±2°C) optimized strength development. This process achieved a flexural strength of 25MPa with the strength coefficient of variation controlled within 5%. The online inspection system used in the project monitored process parameters in real time to ensure stable product quality. This precision control kept dimensional errors of tens of thousands of shaped panels within ≤2mm.

Batching Process Control

The electronic weighing system has an accuracy of ±0.1%. Dry materials are premixed for 2 minutes to ensure uniformity. Fibers are added in three stages to prevent clumping. The water-cement ratio is controlled at 0.30-0.33. These controls ensure accurate mix proportions.

Forming Process Selection

The spraying process offers good fiber orientation and is suitable for complex components. The premixing process is highly efficient and suitable for standard panels. The mesh-laying process enhances directional reinforcement and is suitable for special areas. Each process has its own advantages.

Curing Regime Optimization

A resting period of 2-3 hours prevents plastic cracking. A heating rate of ≤15°C/h avoids thermal stress. Constant-temperature curing for 24 hours ensures strength development. A cooling rate of ≤20°C/h prevents shrinkage cracking. This regime optimizes performance.

Post-Processing

Water curing for 7 days after demolding promotes strength development. Surface treatment improves durability. 100% quality inspection is performed on all products. These procedures ensure ex-factory quality.

Advanced processes require precise control. Qinglong GRC ensures process stability through automated production lines.