Fire door according to the material is divided into fire steel door and fire proof wooden door. There are some differences in the installation methods of the two kinds of fire doors, but also a little different from the fire protection level, we must pay attention to the details of the installation.
First, while in the installation, the size of the fire rated wood doors frame should be less than the entrance to the 20mm, the lower part of the door frame should under the ground to 20mm. Door frame should be fixed firmly with the wall, vertical angle. Vertical frame and support frame should be paid attention to with straight angle, avoid saw. The two sides of the fixed point of the door frame is not less than 3, the best distance is not greater than 800mm.
Secondly, in the installation process of steel fire doors, considering the bending deformation of the frame, used to support in the frame width direction with the wood brace, the lower part of the door frame should under the ground to 20mm, and then weld the frame and the wall of the embedded parts. Then the door open in the corner of the wall, pouring cement, sand, perlite (1:2:5) concrete, can be use after concrete is solidified.
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