What Are The Heating Methods Of Rotational Molding Machine?
Rotational molding machines have various heating methods to meet the production needs of different sizes and types of products. The following are several common heating methods currently available:
1. Electric heating
Features: Electric heating is one of the most common heating methods for rotational molding machines. It conducts heat energy through the heating tube and transfers the heat energy to the drum, thereby heating the material rod.
Advantages: Simple operation, easy to control, and easy to maintain and clean.
Disadvantages: Large power consumption and relatively high cost.
2. Hot air circulation heating
Although this heating method may not be as commonly mentioned as electric heating and gas heating in the specific application of rotomolding machines, hot air circulation heating is also used in some industrial fields for heating and drying processes through the circulating flow of hot air in a closed space. to achieve even heating.
3. Gas heating
Type: Gas heating includes direct heating and indirect heating (such as through a hot box or heat exchanger).
Features: Direct heating is often used to produce large-scale products and can quickly provide a large amount of heat energy; while indirect heating pays more attention to the uniformity of heating and controllability of temperature.
Advantages: Gas heating is generally less expensive than electric heating, and in some areas, gas resources are more abundant and cheaper.
4. Far infrared heating
Technical principle: Far-infrared heating uses far-infrared rays emitted by far-infrared radiators to directly heat materials. When the wavelength of far-infrared rays matches the molecular vibration frequency of the material, resonance will occur, allowing the material to be heated quickly and evenly.
Application: In rotational molding experiments, far-infrared heating is used to design and manufacture visual rotational molding experimental machines to improve heating efficiency and uniformity.
5. Oil heating
Although oil heating is rarely mentioned among the conventional heating methods of rotomolding machines, oil heating can also be an option in some special applications. Oil serves as a heat medium and transfers heat energy to various parts of the rotomolding machine through the oil circulation system.
To sum up, the heating methods of rotomolding machines mainly include electric heating, hot air circulation heating (although it may be less mentioned in specific applications), gas heating (including direct fire and indirect heating), far infrared heating, and oil heating. When choosing a heating method, comprehensive considerations need to be made based on many factors such as production scale, product type, cost considerations, and environmental protection requirements.