What are the parting principles for complex GRC shapes?

The parting design of complex GRC shapes directly affects production feasibility and cost control. Qinglong Group has summarized four major parting principles—"easy demolding, fewer seams, ensured strength, optimized cost"—and achieves efficient production of complex shapes through scientific module division.

Demolding feasibility is the primary principle. Parting lines avoid undercut areas, with a draft angle of ≥3°. In the Algeria hotel perforated panel project, Qinglong Group used 3D simulation of the demolding process to decompose the overall shape into 32 demoldable units. The number of loose mold pieces is kept within a reasonable range, with no more than 50 movable blocks per mold, avoiding excessive complexity. Seam positions are hidden at shape transitions to reduce visual impact.

Structural rationality ensures strength. Parting lines avoid stress concentration areas, and reinforcing ribs are arranged continuously. In the Nanning New Media Center double-curved panel project, parting was optimized through finite element analysis, reducing maximum stress by 30%. Module dimensions take transport restrictions into account, with single-piece weight ≤2 tons and dimensions within transport clearance limits. This scientific parting approach both ensures structural safety and improves production efficiency.