Now the house sound insulation treatment, now generally used false ceiling channel for soundproof ceiling and wall soundproof keel, metal channel is generally divided into drywall partition frame and ceiling channel to choose. metal track for framing is generally composed of horizontal keel, vertical keel, heaven and earth keel and other accessories, most of the selected models Q50, Q75, Q100, Q150 or (C50, C75, C100, C150) general wall models are Q beginning.
And there have two different machine to produce all those false ceiling channel, Drywall Stud And Track Roll Forming Machine and Furring Channel Roll Forming Machine.
Channel false ceiling is generally the carrier keel and cladding keel and a variety of accessories, the carrier keel (main keel) selection of models for D38, D50, D60 or (UC38, UC50, UC60). Generally start with D. Covering keel (secondary keel) for the U50, U60, generally with D38 standard can carry a lot of sound insulation materials, if your sound insulation materials into tons that is used D50. at the same time, the main keel is the best choice of snap type, the national standard 1.0 and above. General installation is the main keel spacing is 600, vice keel spacing is 300.
According to the shape of its section to points: generally for the U-type, C-type, T-type, H-type, V-type, L-type, CH-type these seven kinds of types
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Raw material for galvanized steel strip is better, high steel content is better, mainly look at the hardness, toughness and elasticity of the keel. Can feel the hardness by hand pinch, the whole quiver to verify the elasticity, knocking the sound crisp and so on the way to identify.
Light steel keel in order to prevent rust, will be galvanized, generally divided into hot galvanized and cold galvanized. Hot-dip galvanizing is better in terms of corrosion resistance and durability, while hot-dip galvanized surface is full of gloss, there are obvious snowflakes crystalline galvanized layer. Cold galvanized color is relatively dull, not full enough, the surface is a little rough, not very obvious snowflake crystals.
Generally in the purchase of the time to see whether the galvanization is complete, whether there is peeling off, but also to see whether the surface of the light steel keel is flat and straight, no deformation of broken tumors, special attention should be paid to is the incision whether there is a burr, there is a burr as far as possible do not.
Good hot-dip galvanized is generally a continuous hot-dip galvanized steel, the formation of double-sided galvanized, the quality is very good, his width reaches 50mm, very conducive to the fixing of screws, while reducing the profile of the crack. Double-sided galvanized amount: superior not less than 120g / ㎡, the surface has no corrosion, damage, black spots, pockmarks. First-grade products not less than 100g / ㎡, qualified products not less than 80g / ㎡, the surface is not serious corrosion, damage, black spots and pockmarks, no meters of black spots not more than 3, at the same time, the area is less than 1cm ².
Light steel keel thickness is also an important indicator, generally the thicker the more solid, soundproof wall light steel keel is best national standard 1.0 or even more. Soundproof ceiling bearing keel is the best national standard 1.2 or even more, cladding keel is the best 0.6 or more. The thickness of ceiling T-type keel is 0.27mm.
(Superior quality light steel keel wall thickness of 1.0mm and 1.2mm, the main bone thickness of 0.6mm, side keel thickness of 0.5mm, through the center of the keel thickness of 1.5mm) is too thin keel later or very easy to deformation, try to choose a thicker keel.