Divided by function: access control fire door, indoor fire door, explosion-proof fire door, fast closing fire door, fire fast opening fire door in case of fire, fire insulation door, etc.;



Divided by technology: electronic fire door, built-in fire door closed multi-function fire door, etc.;



According to the structure: fire door with fire glass on the door, fire door with bright window, fire door with glass with bright window, no glass fire door, etc.;



According to the opening mode, it is divided into: flat fire door and push-pull fire door;



Divided by material: wood fire door, steel fire door, steel fire door, glass fire door, other materials fire door;



According to fire resistance: from the original classification according to A, B and C, to the new version according to thermal insulation fire doors (class A), - partial thermal insulation fire doors (class B), non-thermal fire doors (class C).

The role of fire door filling material



1, rock wool material



Rockwool originated in Hawaii. After the volcanic eruption of Hawaii Island, the residents of the island found a wisp of melted soft rock on the ground, which is the rockwool fiber originally recognized by human beings. The production process of rockwool actually simulates the natural process of the volcanic eruption of Hawaii. After melting at high temperature above 1450℃, the international advanced four-axis centrifuge is used to centrifuge fiber at high speed. At the same time, a certain amount of binder, dust-proof oil, and water-repellent agent are sprayed into the cotton collector, collected by the pendulum process, and solidified and cut after laying cotton by three-dimensional method, forming rock wool products with different specifications and uses.



2, perlite fire door core plate



Perlite fire door core plate This product is non-toxic, tasteless, non-combustible, non-corrosive steel plate, 1100℃ high temperature does not melt and does not deformation, the combustion performance reaches A level. The perlite fireproof board meets the requirements of the new standard for fire door filling materials.



(1), good fire performance, can better play the role of fire prevention, environmental protection materials all environmental protection products, no pollution, this product and glass fiber reinforced materials and inorganic binder composition.



(2), with non-combustible, non-explosive, water resistance, oil resistance, chemical corrosion resistance, non-toxic and good mechanical strength, the product can be sawing, drilling, planing and other mechanical processing. High fire resistance, in the simulated combustion test, the flame does not deform when the higher temperature reaches 800 degrees, and has good fire resistance and flame resistance.



(3), the product material is cheap, suitable for a variety of fireproof materials, perlite fireproof board is made of expanded perlite powder a

Class A fire door: the fire resistance limit is not less than 1.5 hours, which is used in other fire partitions (firewalls, fire compartments, atrium, etc.), densely populated places (cinemas, auditoria, etc.), important warehouse doors (confidential rooms, archives, etc.), etc. Class B fire door: the fire resistance limit is not less than 1 hour, used for opening the door on the safety exit (closed stairwell, smoke prevention stairwell and front room, etc.), entertainment building doors (KTV, entertainment halls, etc.), places with high risk of fire homes (kitchens in public buildings, attached warehouses in civil buildings, etc.), room doors used by vulnerable groups (operating rooms, delivery rooms), etc. Class C fire door: the fire resistance limit is not less than 0.5 hours, which is used for shaft protection (pipe well door, etc.), internal communication door and the door of some equipment rooms open to the outside (transformer and distribution room, etc.). For safety reasons, it is recommended to buy fire door brand products.