Operational & Commercial Significance
Pre-treatment shrinkage sets the baseline dimensional state from which all subsequent shrinkage is measured. If pre-treatment shrinkage is unstable, every downstream prediction inherits that uncertainty.
Current Baseline Method (Manual)
Pre-treatment shrinkage is rarely measured systematically at most mills. It is treated as a known small loss folded into planner experience.
Platform Architecture Specifications
Capture Layer: EPI/PPI cameras at entry and exit of pre-treatment line.
Statistical Distribution Layer: Fitted distribution per construction class, typically tight (σ ~0.2-0.3%).
Real-Time Deviation Boundary: Alert when roll exits with shrinkage outside fitted distribution.
Phase 1 Industrial Realization: 100 rolls per major construction class through pre-treatment line.