Wood fire doors

Double-leaf wooden fire door refers to the production of frames with wood or wood products, doors frame, panel doors, fire resistance of more than 0.6 hours in the door, the building is one of the facility's fire separation. Usually on the firewall, stairwell entrances or openings of tube wells, to reduce fire loss plays an important role. Wooden fire door www.rqhongan.com hole size, structure size wood fire doors shall comply with GB 5824 "hole size doors and windows series" requirement. Wooden fire door production requirements: 1) frames and doors should be thicker than 50mm double tenon connections. Frame, when the fan assembly, tongue and groove should be tight fitting, rubber bonding applications, and intensified with plastic wedge. Note: In humid areas, grade Ⅰ product should adopt water-resistant phenolic resin, Ⅱ grade products can be half the water of urea-formaldehyde resin adhesive. 2) the production of plywood doors (including fiberboard doors), cross-border and flute must be on the same plane, the surface layer and the cross-border and should be pressurized cement flute. Transverse flute and should be up, down onto the scene each drill two more holes to prevent moisture from unglued or swollen. Production quality 3) of the door, should meet the following requirements: (1) The surface should be bare or matte, and may not have scats, burrs and hammer India. (2) boxes, linear fan should meet the design requirements, cutting angle, patchwork should be tight and smooth. (3) small and short feed material glued plywood or fiberboard doors and the doors do not allow unglued. Allowed to dig through the surface of the plywood boards and closure Croucher.