Acceptance specifications for the acceptance of ceilings for plasterboard and wooden plywood are as follows:
(1) Guarantee items
The material, type, specification and ceiling structure of the cover panel and its fixing method must meet the design requirements and relevant national standards. The installation of light steel keel or wood dragon skeleton must comply with the relevant provisions of Chapter II of this standard. Wooden keel, plywood must be fire-retardant treatment in accordance with the relevant regulations. The connection between the cover panel and the keel must be tight and firm. The position of the equipment mouth and lighting fixtures must be symmetrical according to the plates, and the layout is reasonable; the edges of the openings are neat, and the mouth guards are tightly closed. The arrangement is straight, neat and beautiful.
Inspection method: observation, ruler measurement, hand check
(2) Basic items
The surface quality of the cover panel should meet the following requirements:
Qualified: smooth surface, correct arching, uniform color, clean, no pollution, no back rust, pitting, hammer marks, no exposed nail caps.
Excellent: smooth surface, accurate arching, uniform color, clean, no pollution, no back rust, pitting, hammer marks, self-tapping screws arranged evenly, no exposed nail cap, no cracking.
The quality of seams and beadings of the cover panel shall comply with the following provisions:
Qualified: The seams are even and narrow on the keel, the fillets are straight, there is no warping, smooth and smooth, the joints are tight and there is no leakage. Yin Yang corner side Founder.
Excellent: The seams are evenly distributed on the keel, the fillets are straight, the width is uniform, there is no warping, smoothness, smoothness, tight seams, no leaks, and the yin and yang corners are squared off.
Shaped requirements should meet the following requirements:
Qualified: The size and position of the shape are correct, and the closing is tight and smooth.
Excellent: The size and position of the model are accurate, the closing is smooth, the curve is smooth and beautiful.
Inspection methods: observation, ruler check.
Ceiling integrated ceiling integrated ceiling appliances
Helical Spring,Cylindrical Spring, Stainless Steel Wire
Compression Spring,Extension Spring,Torsion Spring Co., Ltd. , http://www.nssprings.com