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1、室内装修吸声材料(结构)吸声系数表(1)纤维材料及制品(未注明皆为驻波管值)材料(结构)名称厚度/kg体积密度/(kg/m2)下述频率/(Hz)的吸声系数备注125250500100020004000木丝板木丝:长>80mm,厚0.5mm,宽5mm左右555552003004005006000.050.090.140.160.180.090.150.240.270.260.310.480.650.670.690.590.690.780.760.790.710.790.870.860.850.840.800.910.880.93木丝板木丝:长>80mm,厚0.3
2、mm,宽2mm左右555552003004005006000.070.100.160.130.180.100.170.220.250.270.320.500.700.720.740.570.700.820.790.800.770.800.870.840.850.840.810.910.880.93木丝板木丝:长>80mm,厚0.5mm,宽2mm左右1.52.557.5104004004004004000.030.080.140.210.320.050.200.250.390.600.150.300.630.850.900.190.660.760.830.900
3、.500.710.870.890.920.760.880.900.910.90水泥、木丝板(表面喷薄浆)贴实1.54700.050.150.300.500.350.55后空30mm1.54700.100.100.200.550.600.65后空120mm1.54700.100.250.450.350.450.65大空腔1.54700.250.300.400.500.500.50贴实2.54700.050.150.300.500.700.65后空50mm2.54700.200.200.500.450.550.65大空腔2.54700.200.300.400.60
4、0.650.50半穿孔软枝木纤维板软枝木纤维板厚板材软枝木纤维板半穿孔软枝木纤维板——1.31.31.9——380380——0.040.080.100.170.280.100.150.190.450.100.220.250.460.120.320.500.470.300.410.650.540.330.460.70混响室Ф6mm1.33200.250.350.300.400.450.60混响室appearanceoftheweldappearancequalitytechnicalrequirementsoftheprojectmustnothaveamolt
5、enmetalstreamdoesnotmeltthebasemetaltoweld,weldseamandheat-affectedzonesurfacemustnothavecracks,pores,defectssuchascraterandash,surfacesmoothing,weldandbasemetalshouldbeevenlysmoothtransition.Width2-3mmfromtheedgeofweldGroove.Surfacereinforcementshouldbelessthanorequalto1+0.2timesth
6、eslopeedgewidth,andshouldnotbegreaterthan4mm.Depthofundercutshouldbelessthanorequalto0.5mm,totallengthoftheweldsonbothsidesundercutnotexceed10%oftheweldlength,andlongcontinuousshouldnotbegreaterthan100mm.Wrongsideshouldbelessthanorat0.2T,andshouldnotbegreaterthan2mm(wallthicknessmmt
7、)incompleteornotallow7.57.5.1installationqualityprocessstandardsoftheelectricalenclosureCabinetsurfaceisclean,neat,nosignificantphenomenonofconvex,closetonature,closethedoor.7.5.2CabinetCabinetfacepaintsnopaint,returnedtorusted,consistentcolor.7.5.3uniformindirectgapfromtoptobottom,
8、slotwidth<1.5mm7.5.