What kinds of rolling doors are there?

The national standard GB 14 102 does not require fire resistance test to measure the temperature rise of the back fire surface, nor does it take the temperature rise of the back fire surface as a condition to judge the fire resistance time. In recent years, steam fog steel roller blinds and evaporative steam fog steel roller blinds have appeared in the market. According to the requirements of "high code", when they are used as partition members, the temperature rise of the back fire surface must be used as the judgment condition of fire resistance limit.

In order to distinguish the classification of roller blinds under different judgment conditions, before the promulgation of the national standard for roller blinds classification, experts in "high-gauge" management suggested that fire resistance tests should be carried out in accordance with the national standard "Fire Resistance Test Method for Doors and Roller Blinds" GB7633 to meet the requirements of judgment conditions, including the temperature rise of the back fire surface. The fire resistance limit is ≥3.0h, which is called super roller shutter, and any ordinary roller shutter door that does not depend on the temperature rise of the back fire surface in the fire resistance test.

Manual roller blind. With the help of the torsion spring on the axis of the roller blind, the purpose of manually pulling the roller blind is achieved. Electric roller blind. A special motor is used to drive the central shaft of the roller blind to rotate, so as to realize the roller blind switch, which will automatically stop when the rotation reaches the upper and lower limit set by the motor. The special motors for shutter doors are: external shutter doors, Australian shutter doors, tubular shutter doors, fire shutter doors, inorganic double shutter doors, quick shutter doors, etc. According to the door material, it can be divided into inorganic cloth shutter doors, grid shutter doors, aluminum alloy shutter doors, crystal shutter doors, stainless steel shutter doors, color steel shutter doors and shutter doors. According to the installation form, it can be divided into two types: inside the wall, side of the wall (or inside and outside the hole). According to the opening direction, it can be divided into two types: roll-up type and side roll-up type. According to the purpose, it is divided into ordinary shutter doors, wind shutter doors, fire shutter doors, quick shutter doors and electric Australian shutter doors.