High-frequency welding technology solves the sealing problem of medicine bags: Innovations from heat loss control to molecular-level fusion

1. Thermal Management: From "Coarse Heating" to "Precision Control"
Traditional heat sealing risks damaging heat-sensitive TCM ingredients (volatile oils, bioactive compounds) through uneven external heating. High-frequency welding activates molecular polarization and frictional heating via 27.12/40.68MHz electric fields, achieving uniform internal heat distribution with precision temperature control (±1.5°C). This cold-welding mechanism preserves herbal potency while sealing sachets/pouches.

2. Molecular Fusion: From "Surface Bonding" to "Intrinsic Integration"
High-frequency vibrations break and recombine molecular chains, creating seamless fusion structures that outperform traditional mechanical compression:

• Strength Revolution: Peel strength ≥15N/cm² withstands powdery/granular leakage (tested per ASTM F88).
• Environmental Resistance: Zero micropores/laminations block 99.95% moisture/O₂ (ISO 15106-2), extending shelf life in humid climates.
• Multi-Material Compatibility: Bonds PE-aluminum foil, PVC-TPU hybrids through adaptive frequency modulation (range: 5-50μm).

3. Intelligent Process Control: From "Human Expertise" to "Data-Driven Optimization"
AI-enhanced welding systems enable full automation and traceability:

• Agile Production: Modular tooling achieves <3-minute changeovers (vs. 4-6hr traditional), supporting "small-batch, multi-SKU" TCM packaging.
• Digital Compliance: Real-time parameter logging into electronic batch records (EBR), aligning with FDA 21 CFR Part 11 and EU GMP Annex 11.
• Predictive Maintenance: IoT sensors detect <0.5mm die wear or 5% energy drift, cutting unplanned downtime by 70%.

4. Material Versatility: From "Limited Options" to "Omni-Scenario Capability"
High-frequency welding transcends traditional thickness limitations (0.1-12mm) without hardware changes:

• Biodegradable Solutions: Successfully welds PLA/PBS films (melting index 5-25g/10min) for eco-friendly packaging.
• Thick-Wall Performance: Optimized impedance matching enables 8-12mm bottle cap welding (e.g., moisture-proof pill containers), with welds achieving 90-95% base material strength (ISO 527-2).