Introduction, principle, performance, and applicable industries of infrared heating tubes

2024-04-23 11:06:36 1082

Product Introduction


Infrared heating tube is a tubular heater that utilizes the principle of infrared radiation. It has the characteristics of excellent quality, high thermal efficiency, high power density, rapid heating, energy-saving, and long service life. It is an energy-saving heating technology that developed rapidly in the 1980s and has been listed as a key promotion project in China, achieving gratifying economic benefits.

Infrared is widely used for industrial heating or drying, such as surface heating, drying, and curing processes in the fields of automobiles, plastics, printing, glass, textiles, food, metal parts, circuit board packaging, film, and electronics.

Quartz near-infrared and far-infrared radiation spectra can be generated by using transparent or semi transparent quartz glass as the outer shell of the lamp tube. Infrared is a type of electrical wave that propagates at the speed of light and carries high energy. The radiation intensity and wavelength of different types of infrared with the same power vary.

A. Long wave infrared (also known as far-infrared) has the characteristics of fast heating speed, uniform heating, small thermal inertia, and only 1-3 minutes to reach the constant temperature of the component. The electrical radiation conversion efficiency is as high as 60% -75%, and it does not explode during cold and hot periods. It is energy-saving and has a long service life.

B. Short wave infrared (also known as near-infrared) has the characteristic of 1-3 seconds of heating and cooling time, making the heating process control more flexible. A highly efficient and durable gold coated reflective layer for single and twin tubes can achieve a radiation efficiency of over 96% and an ultra long service life, typically over 10000 hours. Especially widely used for drying and curing high-speed printing equipment, it can quickly heat the surface of plastics, water, and other solvents, and has the characteristic of being quickly absorbed by water film to achieve drying effect.


Principle and Performance

Energy saving principle of infrared heating tubes:

When far infrared rays pass through quartz tubes, multiple reflections and refractions occur, leading to opacities. It has excellent far-infrared radiation characteristics. If the back is sprayed with gold or partially coated with white aluminum oxide, the effect is better, and the power savings can reach 35%.

Performance of infrared heating tubes:

The infrared heating tube does not require coating on the outside and filling materials on the inside, with stable radiation rate, no deformation at high temperatures, no harmful radiation, no environmental pollution, extremely strong corrosion resistance, good chemical stability, low thermal conductivity, high heat conversion rate, long-term use, and no degradation of its original color.


Applicable industries

Applicable to:

Printing industry: curing of glue and ink;

Packaging industry: PET bottle blowing and lamination;

Furniture industry: preheating before wood drying and painting;

Rubber and plastic industry: softening and molding of plastics, cable production;

Shoe making industry: activation and drying of glue;

Paper industry: baking and drying of paper;

Glass industry: drying and light cleaning of glass;

Automotive industry: whole vehicle paint baking and local paint repair;

Food industry: food baking, heating, and insulation;

Electronic industry: production of circuit boards, capacitors, and semiconductors;

And space heating, infrared therapy, and central air conditioning for moisture drying.