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Wood Warping & Rotting? Our Modification Equipment Stops It for Good

2025-08-22

Wood modification equipment achieves performance leap by multi-dimensional precise control of physical, chemical or biological processes to deeply optimize wood molecular structure:

Physical Modification (Thermal Treatment/High-pressure Densification)

Thermal treatment: Gradually heat wood to 160-240℃ (adjusted by wood species) in a nitrogen or steam-protected closed environment, permanently reducing hydrophilic groups in wood by degrading part of hemicellulose and rearranging lignin molecular chains.

High-pressure densification: Compress cell structure with 10-30MPa pressure after softening wood at high temperature, increasing wood density by 30%-60%.

✅ Core advantages: More environmentally friendly without chemical additives; treated wood has stable moisture content of 8%-12%, weather resistance increased by 2-3 times, and hardness increased by over 40%.

Chemical Modification (Acetylation/Resin Impregnation)

Acetylation: Place wood in acetic anhydride solution for 3-6 hours of acetylation reaction at 80-120℃, replacing hydroxyl groups (-OH) in wood cells with acetyl groups to cut off moisture adsorption paths.

Resin impregnation: Inject environmentally friendly resin into wood conduits through vacuum-pressure process, forming "skeleton support" after curing to fill cell gaps.

✅ Core advantages: Dimensional stability over 90%, water absorption reduced by 60%-70%, and insect resistance and anti-corrosion life extended to over 20 years.

Intelligent Integrated System

Equipped with PLC control system and multi-sensor array, real-time monitoring of temperature (±1℃), pressure (±0.01MPa), humidity (±2%RH) and other parameters, automatically adjusting process curves to ensure performance deviation of each cubic meter of wood ≤5%.

✅ Core advantages: Production efficiency increased by 30%, energy consumption reduced by 20%, labor cost reduced by 40%, realizing large-scale stable production.

Shandong Junxu Heavy Industry (Group) Co., Ltd.

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