The FRP unit is mainly composed of four parts: releasing segment, convection heating segment, plain toughening segment and extracting segment, as well as high-pressure centrifugal fan, air supply pipeline, air collecting box, air circuit, electrical control cabinet and operating table.

The glass tempering furnace uses physical or chemical methods to form a compressive stress layer on the surface of glass and a tensile stress layer inside the glass. When the glass is subjected to external forces, the compressive stress layer can offset part of the tensile stress and avoid glass breakage, so as to improve the strength of glass. Moreover, the microcracks on the surface of glass become more fine under this compressive stress, and the strength of glass is improved to a certain extent. 

1. Before heating up the small glass tempering furnace, the manufacturer of glass tempering furnace should inspect the electric wire and related parts. The temperature can be raised without error. During the process of heating up, someone is on duty to take care of it.

2. In order to process glass in furnace, the scale should be in line with the processing ability of tempering furnace. It is forbidden to be too large or too small to damage the tempering furnace. When adjusting the radian of the tempering furnace, special command and operation should be carried out to prevent misoperation, thus causing injury to personnel.

3. When adjusting the chains, sprockets, gears and other parts of the FRP furnace, parking must be done before working. Hand operation is prohibited under the condition of the above parts changing to prevent the occurrence of incidents.

4. Because of sudden power outage, accounting machine crash or main drive chain cracking, after the main drive stops running, the glass inside the furnace should be manually turned out to make the ceramic rollers persist in changing so as to prevent damage to the ceramic rollers.

5. When the glass tempering furnace is in the production and heat preservation condition, a special person is on duty, checking every half hour, and lifting and polishing the ceramic roller, if necessary, inserting the safety pin to make appropriate safety measures before entering the furnace to work.