Benefits of Carbon Fiber Infrared Heating in Paint Rooms

Paint baking is involved in various industries, including consumer electronics, automobiles, machinery manufacturing, medical devices, aerospace, and more. All these fields require surface coating, and paint baking rooms are indispensable in the painting industry. The method of paint baking has evolved from natural air-drying to forced drying in paint baking rooms, experiencing various heating modes.

As time has passed, paint baking rooms have continuously updated and developed. They started with burning wood and coal for heating, then moved to diesel heating, followed by natural gas heating, electric heating wires, and later infrared and far-infrared heating. As times progress and technology advances, paint baking rooms must keep pace with market demands. Today’s market demands “efficiency, energy-saving, environmental protection, and cost-effectiveness,” and infrared paint baking rooms can meet any of these four points. In the future, infrared paint baking technology is expected to shine brightly in the industry.

Currently, there are still many traditional paint baking rooms using oil heating (burning diesel) or combustion-based systems (burning wood scraps or pellet fuel). These two heating methods use fans to send the hot air generated by burning fuel into the paint baking room, raising the temperature through heat convection and heat transfer. This method slowly dries the paint’s solvent from the outside to the inside, and the entire drying process is relatively slow.

Due to significant fire hazards, environmental pollution, and less-than-ideal heating results, combustion-based drying rooms are gradually being replaced by infrared heating drying rooms. Infrared paint baking rooms replace the combustion components with heating tubes, typically using 10 or more carbon fiber heating tubes combined. By converting electrical energy into heat and infrared radiation, these systems allow the water and solvents in the paint to evaporate from the inside out, improving heating efficiency by over 65%.

According to the report “Analysis of the Energy-Saving Benefits of Infrared Heating Technology Applied to Automotive Paint Baking Processes,” infrared heating paint baking rooms are more than 65% more energy-efficient than diesel-based paint baking rooms. They also greatly improve safety, as no exhaust gases are produced during the heating process. This aligns with the national goals of energy conservation and emission reduction and is an excellent example of electrical power substitution. When in operation, carbon fiber heating tubes emit large amounts of infrared radiation, with surface temperatures exceeding 500°C. This is a newly developed type of electric heating tube, representing an upgrade from traditional tungsten wire heating tubes.

Advantages of Carbon Fiber Heating Tubes

Carbon fiber heating tubes inherit all the advantages of tungsten wire infrared heating tubes while improving upon their durability issues. In a protective gas environment, tungsten wire produces high temperatures when electrified, reaching an incandescent state and emitting bright visible light. The surface of the tungsten wire slowly sublimates at high temperatures, and even in a protective gas environment, the wire eventually burns out. The difference is only in how long it lasts.

Carbon fiber heating tubes use carbon fiber as the heating element, which is electrified and heated in a vacuum environment. Carbon fiber’s chemical and physical properties are extremely stable, withstanding temperatures of up to 2700°C in a vacuum, and it remains stable without becoming brittle or oxidized. Therefore, as long as the vacuum environment remains intact, carbon fiber heating tubes can function normally. However, the overall lifespan of carbon fiber heating tubes is also related to the wires. If the heat resistance of the wires is insufficient, it can significantly impact the lifespan of the heating tube.

Advantages of Using Carbon Fiber Heating Tubes in Paint Baking Rooms

• Reduced Emissions: Utilizing electricity eliminates the solid particulate pollution and CO2 emissions generated by combustion.
• Increased Safety: Using electricity avoids open flames, greatly reducing the risk of fire.
• Smaller Footprint: Without the need for a combustion chamber and hot air circulation system, the overall size of the paint baking room is significantly reduced.
• Improved Heating Efficiency: The report “Analysis of the Energy-Saving Benefits of Infrared Heating Technology Applied to Automotive Paint Baking Processes” shows that heating time is reduced by 36 hours. Time is money, and money is profit, representing business opportunities.
• Upgraded Heating Principle: Traditional combustion-based paint baking rooms heat by conducting heat from the outside in to evaporate solvents, while infrared heating paint baking rooms combine heat transfer and radiant heating to heat the paint surface from the inside out.

In summary, infrared paint baking rooms equipped with carbon fiber heating tubes are worth promoting and using. Although regulations may still be lax in some regions, and many factories continue to use combustion-based paint baking rooms, under national policies and enforced supervision, the use of combustion-based systems will gradually decrease. Energy-efficient, environmentally friendly carbon fiber infrared heating paint baking rooms will be encouraged.

GlobalQT specializes in manufacturing high-efficiency quartz heating solutions for various industries. For more information, visit our website or contact us at contact@globalquartztube.com.