Metal Mold Preheating and Heating Tunnel Furnace
Category：Tunnel Oven Production Line
Introduction
The metal mold preheating and heating tunnel furnace is an automated heating equipment specially designed for continuous preheating, baking, and heat treatment of industrial molds, precision casting parts, and metal products.By combining a continuous conveying system with a high-efficiency hot air circulation system, the equipment enables molds to reach the uniform temperature required by the process before entering the production line. It effectively prevents thermal stress cracks caused by sudden cooling and heating, significantly extends mold service life, and improves product molding quality.
Applications
Mold Preheating:
Used for rapid and uniform heating of molds before production in industries such as die casting, injection molding, and forging.
Coating Curing:
Used for high-temperature drying and curing of sprayed coatings and Teflon coatings on metal molds and workpieces.
Stress Relief:
Used for stress-relief annealing heat treatment after metal machining or welding processes.
Alloy Baking:
Used for shell baking in precision casting processes and moisture removal drying of metal products.
Parameters
| Parameter Item | Technical Specification |
|---|---|
| Working Temperature | Room temperature to 400℃ / 600℃ (customizable according to requirements) |
| Temperature Control Accuracy | ±1℃ |
| Furnace Temperature Uniformity | ±3℃ to ±5℃ (no-load condition) |
| Heating Method | Electric heating (stainless steel heating tubes) / Natural gas heating |
| Conveyor Speed | 0.1 to 5 meters/minute (variable frequency speed regulation) |
| Conveyor Belt Material | Heavy-duty stainless steel mesh belt / Chain conveyor / Roller conveyor |
| Insulation Layer Thickness | 100 millimeters to 150 millimeters high-density aluminum silicate fiber cotton |
| Control System | PLC programmable controller + touch screen, integrated intelligent PID temperature control instruments |
Features
High Efficiency and Energy Saving:
The equipment adopts a powerful dual-direction hot air circulation design, providing high thermal efficiency and excellent temperature balance throughout the furnace.
Precision Temperature Control:
Multi-section independent temperature control technology allows different heating rates to be set according to the mold process temperature curve.
High Load-Bearing Capacity:
The conveying structure is reinforced specifically for heavy metal molds, ensuring stable operation without vibration.
Intelligent Safety Protection:
Equipped with over-temperature alarms, transmission overload protection, exhaust interlock control, and audible and visual alarm systems.
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