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High-strength particleboard continuous press

continuous press dedicated to construction formwork

Particleboard Continuous Flat Press Hot Press

High-strength Particleboard Continuous Press Dedicated To Construction Formwork with A Turnover of 20 Times

This high-strength particleboard is produced using the advanced continuous press machine process, which endows the board with outstanding physical properties and dimensional stability. Its core advantage lies in its ability to be reused up to 20 times, significantly exceeding the lifespan of ordinary formwork boards. This greatly reduces your frequency of formwork replacement and overall usage cost, making it an ideal choice for enhancing construction efficiency and economic benefits.


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Model:
MH-CHP
Brand:
MINGHUNG

Product Description

High-strength Particleboard Continuous Press Dedicated To Construction Formwork with A Turnover of 20 Times

OSB Continuous Press Production Line

I. Basic Concept of Construction Formwork

Definition: Custom-developed continuous flat press for high-strength film-faced particleboard (reuse ≥20 cycles), requiring:

High-Pressure Capability: Max. working pressure ≥7MPa (vs. 3-4MPa for furniture board)

High-Temperature Stability: Platen temperature 220±1°C (for rapid MDI curing)

Anti-Stick Treatment: Resolves adhesion from high resin content (surface resin ≥12%)

Gradient Pressing: Achieves differentiated density control (surface ≥950kg/m³, core ≥750kg/m³)

Evolution: Disposable wood formwork → Steel formwork → High-strength film-faced particleboard formwork (current mainstream, >60% market share).

II. Structural Features of Specialty Particleboard

Layer	Material & Process Requirements	Function
Surface	Fine particles + high MDI resin (≥12%), density≥950kg/m³	Wear/water resistance
Core	Large flakes with oriented layers, density≥750kg/m³	Bending strength (MOR≥25MPa)
Overlay	Phenolic-impregnated paper (≥130g/m²) hot-pressed	Demolding & reuse cycles

III. Common Types & Dimensions

Type	Standard Size (mm)	Thickness (mm)	Application
Standard Film-Faced	1220×2440	15, 18	Slabs/columns (≤15 cycles)
High-Strength Film-Faced	1220×2440, 915×1830	18, 21	Shear walls/heavy loads (≥20 cycles)
Extra-Thick Load-Bearing	1250×2500	24, 27	Bridge piers/foundations

IV. Core Advantages as Formwork

1. Strength Performance

MOR: ≥22MPa (longitudinal), ≥18MPa (transverse)

MOE: ≥3500MPa (30% above GB/T 17656)

2. Water Resistance & Durability

4h boiling thickness swell ≤5% (vs. ≥12% for standard board)

No delamination in alkaline concrete (pH=13, 72h)

3. Cost Efficiency

Price = 1/3 of steel formwork, reuse cost ≤¥0.5/m²·cycle

V. Continuous Press Key Technologies

1. Press Design

System	Specifications	Function
Heating Platens	Surface hardness HRC 52-55, flatness ≤0.1mm/m	Uniform thickness control
Hydraulic System	Max pressure 7MPa, zonal control (≥8 zones) ±0.3MPa	Core layer gradient pressing
Heating System	Thermal oil temp control ±1°C (200-220°C)	Accelerate MDI curing
Steel Belt Anti-Stick	Laser texturing (Ra=3.0-4.0μm)	Prevent resin adhesion

2. Supporting Processes

Particle Preparation: Core flakes: 50-80mm long/15-30mm wide; Surface fines: ≤2mm fragments

Resin Application: Dual-channel spraying (MDI + wax emulsion), error ≤±2%

Forming Technology: Surface fines ≥40%, core orientation angle ≤15° (↑25% longitudinal strength)

ring flaker

chipboard gluing system

particle forming machine

3. Key Technologies for Formwork Adaptation

（1）High-Strength Structural Support

Frame Rigidity: Box-welded structure (steel thickness ≥120mm), deformation resistance 0.05mm/MPa

Support Roll Layout: Dense roll system (pitch ≤80mm) + high-Cr alloy sleeves (HRC 60)

（2）Oriented Structure Forming

Core Flake Alignment: Airflow guidance (orientation angle ≤15°)

Strength Enhancement: 25% higher longitudinal MOR (25-28MPa)

（3） Online Quality Monitoring

Monitoring Point	Sensor Type	Control Accuracy
Mat Density	Microwave densitometer	±1.5%
Thickness Deviation	Laser scanner (8-point)	±0.1mm
Resin Cure Degree	Infrared thermography	0.5°C resolution

VI. Critical Production Parameters

Process	Parameters	Quality Control
Particle Drying	Final MC 3±0.5%	Prevent pre-curing
Pre-pressing	Line pressure ≥150N/mm	Initial density ≥650kg/m³
Hot Pressing	Pressure 4-6MPa, time 0.6-0.8min/mm	Resin penetration ≥0.5mm
Overlay Pressing	Temp 160°C, pressure 1.2MPa, 60s	Peel strength ≥1.5N/mm

Ⅶ. Turnover

1. Meaning of "Reuse ≥20 Cycles"

Complete Process Cycle

Each reuse cycle includes:Installation → Concrete pouring (lateral pressure ≥60kPa) → Stripping (mechanical impact) → High-pressure water cleaning (cement residue removal)

Post-Cycle Performance Requirements

After 20 cycles, the formwork must retain:Corner integrity ≥95% (no edge collapse/delamination);MOR retention ≥85% (Longitudinal MOR ≥18.7MPa);Thickness swell ≤8% (4h boiling test)

2. Reuse Cycle Ranges by Formwork Grade

Formwork Type	Reuse Cycles	Application	Key Characteristics
Standard Film-Faced	8-12 cycles	Low-rise residential slabs	Surface density ≥800kg/m³, 10% MDI resin
High-Strength Film-Faced	20-30 cycles	High-rise shear walls/commercial	Surface density ≥950kg/m³, oriented core
Reinforced Alloy-Faced	50+ cycles	Nuclear projects/precision walls	Steel-framed + phenolic resin impregnation

3. Key Factors Affecting Reuse Cycles

Factor	Impact Mechanism	Improvement Measures
Surface Density	Density <900kg/m³ causes film wear	Gradient pressing to ≥950kg/m³
MDI Penetration Depth	<0.5mm leads to particle loss during cleaning	Extend press time (0.7 min/mm)
Film Adhesion	Peel strength <1.2N/mm causes tearing	Overlay paper ≥130g/m²
Edge Sealing	Unsealed edges swell 300% faster	PVC edging + waterproof coating

Reuse ≥20 cycles" signifies that the formwork must maintain structural integrity through >20 construction cycles under harsh conditions, relying on:

Material Science: High surface density (≥950kg/m³) + deep MDI curing

Process Tech: Gradient pressing (7MPa high-pressure zone) + precise temp control (220±1°C)

Design: Reinforced film-substrate interface (peel strength ≥1.5N/mm)

PACKING & SHIPPING

We maintain a long-term cooperation with a well-known freight forwarding company, and adhere to the customer-first philosophy. We strictly implement the quality inspection process before shipment to ensure that each batch of products meets international quality standards, We deeply understand that high-quality service is the cornerstone of winning customer trust, and we always create value for customers with professional and efficient supply chain management. We sincerely invite you to join hands and work together to createa win-win future.