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Security knowledge: a few problems about the quality of fire shutter
Fire shutter refers to a certain period of time, together with the framework can meet the requirements of fire stability and fire integrity requirements. Fire shutter is a kind of movable fireproof partition, usually roll up in the door and window in the shaft box, when the fire will be put down, spread, to prevent the fire from the doors and windows of the hole spread. General by the curtain board, guide, lintel, seat board, transmission device, rolling door machine, control box, etc.. Fire shutter is widely used in various types of industrial and civil buildings, when the fire occurs, can be automatically closed, to prevent fire and smoke spread, fight fire time, reduce casualties and economic losses.
In the 06 and fourth quarters of the year, the fire shutter production units in Henan were tested and found that the quality of the overall fire shutter products was better, but there were some quality problems:
1, inspection of materials, the main parts of the original material thickness is not up to standard requirements, such as the seat board need to 3.0mm the thickness of the steel plate, some manufacturers are using the 1.0mm thickness of the steel plate, it will cause the seat plate stiffness is not enough, easy deformation.
2, rail inspection, most of the manufacturers of parallel error and Perpendicularity Error does not meet the standard requirements, leading to the middle gap is larger, fire, smoke prevention measures will lose the role.
3, seat board inspection, fire shutter can not contact with the ground and some manufacturers, once the fire, the flame will be from the base plate and the ground, the other place to place by diffusion, can effectively prevent the spread of fire smoke, no fire separation effect.
4, fire shutter production enterprises generally exist without drawing production. In order to save enterprises, mostly in accordance with the size of the hole, on-site assembly and install, no drawings, leading to the installation of low quality.
There are many reasons for the above quality problems, but the main thing is that..:
1, installation quality is low, the level is not high, especially in order to rush deadlines caused by temporary deployment of installation personnel, installation quality is not stable. Therefore, enterprises should increase the installation team, improve its installation level, and achieve the goal of improving product quality.
2, the production enterprises can not draw drawings according to actual conditions of the project, and organize production and installation.
In this regard, the enterprises should draw the drawings according to the actual situation of the project, and control the quality of the production of rolling screens. At the same time, we should strengthen the construction of the installation team and improve its installation level, so as to improve the quality of the products. |
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