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Gypsum board production line production of gypsum board cracks how to deal with
Gypsum plaster board production line production of the main problems prone to cracks and irregular arch, including construction and material reasons, there are seasonal reasons.
Gypsum board ceiling prone to the problem there are two main types:
1, about half a year after the completion of the ceiling, paper plaster board joints began to crack. The solution is gypsum board ceiling, to ensure that the gypsum board in the unstressed state of fixed. Keel and tighten the screw spacing should be strictly in accordance with the design requirements of construction; the overall full of putty putty should be noted that putty do not scratch too thick.
2, the irregular wave-shaped ceiling. The ceiling around the grille or the four corners uneven, or wood moisture content of a large contraction deformation, can cause uneven arch degrees; In addition, the keel joints uneven hard bend, boom or suspension spacing over the Ambassador keel deformation, can also cause uneven ceiling ; Wood hanging rod head split, with steel do not pull when the boom, will lead to irregular wave deformation; the larger ceiling works, it is best to use light steel keel.
To prevent the ceiling arch, ceiling wood should use high-quality soft wood, the moisture content should be controlled within 12%, the keel should be straight, can not have cross-section section of the knot, ceiling construction should be around the wall line leveling, When the nail around the level of prevail, the indirect horizontal line from the arch height of the room to the short span of 1/200, vertical arch degree should be uniform.