1、常規(guī)材料的導熱系數(shù)C),在1小c代替導熱系數(shù)是指在穩(wěn)定傳熱條件下，1m厚的材料，兩側(cè)表面的溫差為1度(K;時內(nèi)，通過1平方米面積傳遞的熱量，單位為瓦/米？度(W/m?K,此處的K可用導熱率W/(m*K)金剛石1300-2400硅611銀429銅401金317鉞250鋁240氮化鋁200鴇180鋅116銀91鐵84-90錮82耙72鉗72錮90銀1067錫66金80錫2057錫63鉛3750.9錫60鉛4049.8錫50鉛5046.7錫62鉛36銀249金88錯1244錫40鉛6043.6錫30鉛7040.5錫20鉛8037.4錫10鉛9035.8錫5鉛9535.2鉛35AI2O3(96%)35

2、錫銀33錫睇28睇2442合金15.6銀填充的相變型光盤片3-8氮化硼填充的硅樹脂6銀填充的鑄模1.3-5模壓料0.6-0.7BT環(huán)氧樹脂0.19FR-40.11空氣0.03導熱系數(shù)與材料的組成結(jié)構(gòu)、密度、含水率、溫度等因素有關。非晶體結(jié)構(gòu)、密度較低的材料，導熱系數(shù)較小。材料的含水率、溫度較低時，導熱系數(shù)較小。通常把導熱系數(shù)較低的材料稱為保溫材料，而把導熱系數(shù)在0.05瓦/米？度以下的材料稱為高效保溫材料。軟性硅膠導熱絕緣墊是傳熱界面材料中的一種，具有良好的導熱能力和高等級的耐壓，其作用就是填充處理器與散熱器之間大要求，是替代導熱硅脂導熱膏加云母片的二元散熱系統(tǒng)的最佳產(chǎn)品.該產(chǎn)品的導熱系數(shù)是2

3、.45W/mK,抗電壓擊穿值在4000伏以上，本身具有一定的柔韌性，很好的貼合功率器件與散熱鋁片或機器外殼間的，從而達到最好的導熱及散熱目的，符合目前電子行業(yè)對導熱材料的要求.硅膠導熱絕緣墊的長寬規(guī)格400x200mm,工藝厚度從0.5mm5mm不等，每0.5mm一力口,即0.5mm1mm1.5mm2mm一直到5mm特殊要求可增至10mm專門為利用縫隙傳遞熱量的設計方案生產(chǎn)，能夠填充縫隙完成發(fā)熱部位與散熱部位的熱傳遞同時還起到減震絕緣密封等作用，能夠滿足社設備小型化超薄化的無風扇設計要求，是極具工藝性和使用性的新材料.且厚度適用范圍廣，特別適用于汽車、顯示器、計算機和電源等電子設備行業(yè)阻燃防火

4、性能符合U.L安規(guī)94V-0要求，已通過SGS公司關于歐盟ROHS標準檢測環(huán)保認證，工作溫度一般在-50C220C開關電源絕緣，耐溫,耐電壓，導熱及防火材料：1 .軟性硅膠導熱墊，工藝厚度從0.5mm-5mm,每0.5mm一力口，即0.5mm1mm1.5mm2mm一直到5mm;特殊要求可增至10mm,導熱系數(shù)高達2.45w/mk,同時具有非常好的絕緣性能.阻燃防火性能符合UL94V-0要求，并符合歐盟SGS環(huán)保認證，工作溫度一般在-50C220C;因此，是非常好的導熱材料.特性柔軟，專門為利用間隙傳遞熱量的設計方案生產(chǎn)，能夠填充縫隙，完成發(fā)熱部件與散熱片的熱傳遞，增加導熱面積，同時還起到防震，

5、絕緣，密封等作用；能夠滿足社設備小型化，超薄化的設計要求，是極具工藝性和使用性的新材料.且厚度適用范圍廣，特別適用于汽車、顯示器、計算機和電源等電子設備行業(yè)2 .大功率MOS管，散熱絕緣片一般使用矽膠片，導熱系數(shù)：0.8-1.2W/M.K,成本低，易組裝，對高發(fā)熱量的MOS管絕緣是沒有問題，散熱效果很理想.常用材料導熱系數(shù)-深圳智通電子有限公司提供MetalMaterialConductivityDensity密度W/m-Ckg/m3Aluminum,2024,Temper-T31212.80E+03Aluminum,2024,Temper-T3511432.80E+03Aluminum,20

6、24,Temper-T41212.80E+03Aluminum,5052,Temper-H321382.68E+03Aluminum,5052,Temper-O1442.69E+03Aluminum,6061,Temper-O1802.71E+03Aluminum,6061,Temper-T41542.71E+03Aluminum鋁，6061,1672.71E+03Temper-T6Aluminum,7075,Temper-O1302.80E+03Aluminum,7075,Temper-T61302.80E+03Aluminum,A356,Temper-T61282.76E+03Alumin

7、um,Al-Cu,Duralumin,95%Al-5%Cu1642.79E+03Aluminum,Al-Mg-Si,97%Al-1%Mg-1%Si-1%Mn1772.71E+03Aluminum,Al-Si,Alusil,80%Al-20%Si1612.63E+03Aluminum,Al-Si,Silumim,86.5%Al-1%Cu1372.66E+03Aluminum,Pure2202.71E+03Beryllium,Pure1751.85E+03Brass,Red,85%Cu-15%Zn1518.80E+03Brass,Yellow,65%Cu-35%Zn1198.80E+03Coppe

8、r,Alloy,110003888.93E+03Copper,Aluminumbronze,95%Cu-5%AlCopper,Brass,70%Cu-30%ZnCopper,Bronze,75%Cu-25%SnCopper,Constantan,60%Cu-40%NiCopper,DrawnWireCopper,Germansilver,62%Cu-15%Ni-22%ZnCopper,PureCopper,Redbrass,85%Cu-9%Sn-6%ZnGold,PureInvar,64%Fe-35%NiIron,CastIron,PureIron,Wrought,0.5%CKovar,54%

9、Fe-29%Ni-17%CoLead,PureMagnesium,Mg-Al,Electrolytic,8%Al-2%ZnMagnesium,PureMolybdenumNichrome,80%Ni-20%CrNickel,Ni-Cr,80%Ni-20%CrNickel,Ni-Cr,90%Ni-10%Cr838.67E+031118.52E+03268.67E+0322.78.92E+032878.80E+0324.98.62E+033868.95E+03618.71E+033181.89E+0413.88.13E+03557.92E+0371.87.90E+03597.85E+0316.38

10、.36E+03351.14E+04661.81E+031711.75E+031301.02E+04128.40E+0312.68.31E+03178.67E+03998.91E+034181.05E+04571.50E+04881.50E+04941.57E+04509.29E+03519.25E+03Nickel,PureSilver,PureSolder,Hard,80%Au-20%SnSolder,Hard,88%Au-12%GeSolder,Hard,95%Au-3%SiSolder,Soft,60%Sn-40%PbSolder,Soft,63%Sn-37%PbSolder,Soft,

11、QQ92.5%Pb-2.5%Ag-5%In39Solder,Soft,ono95%Pb-5%Sn32.3Steel,Carbon,0.5%C54Steel,Carbon,1.0%C43Steel,Carbon,1.5%C36Steel,Chrome,Cr0%73Steel,Chrome,Cr1%61Steel,Chrome,Cr20%22Steel,Chrome,Cr5%40Steel,Chrome-Nickel,AQ15%Cr-10%Ni19Steel,Chrome-Nickel,16318%Cr-8%Ni1u.。Steel,Chrome-Nickel,20%Cr-15%Ni15.1Stee

12、l,Chrome-Nickel,12825%Cr-20%Ni.Steel,Invar,36%Ni10.7Steel,Nickel,Ni0%73Steel,Nickel,Ni20%19Steel,Nickel,Ni40%10Steel,Nickel,Ni80%35Steel,SAE101059Steel,SAE1010,Sheet63.9Steel,Stainless,31616.26Steel,Tungsten,W0%73Steel,Tungsten,W1%66Steel,Tungsten,W10%48Steel,Tungsten,W5%54Tin,Cast,Hammered62.5Tin,P

13、ure64Titanium15.6Tungsten180Zinc鋅，Pure112.21.20E+041.10E+047.83E+037.80E+037.75E+037.90E+037.87E+037.69E+037.83E+037.87E+037.82E+037.83E+037.87E+038.14E+037.90E+037.93E+038.17E+038.62E+037.83E+037.83E+038.03E+037.90E+037.91E+038.31E+038.07E+037.35E+037.30E+034.51E+031.94E+047.14E+03Non-MetalMaterial

14、ConductivityDensityW/m-Ckg/m3ABS-Plastic0.251.01E+03Acetals0.31.42E+03Acrylic0.061.19E+03Alkyds0.852.00E+03Alumina,96%213.80E+03Alumina,Pure373.90E+03Asbestos,Asbestos-sheets0.166NoDataAsbestos,Cement2.08NoDataAsbestos,Cement-boards0.74NoDataAsbestos,Corregated,4plies/in0.087NoDataAsbestos,Felt,20la

15、m/in0.078NoDataAsbestos,Felt,40lam/in0.057NoDataAsbestos,Loosely-packed0.154520Asphalt0.75NoDataBakelite0.19NoDataBalsamwool2.2lb/ft30.0435Beryllia,99.5%197.3NoDataBrick,Buildingbrick0.691.60E+03Brick,Carborundumbrick18.5NoDataBrick,Chromebrick2.323.00E+03Brick,Diatomaceousearth0.24NoDataBrick,Faceb

16、rick1.322.00E+03Brick,Fireclay1.042.00E+03Brick,Magnesite3.81NoDataCarbon6.92NoDataCardboard,Celotex0.048NoDataCardboard,Corrugated0.064NoDataCement,Mortar1.16NoDataCement,Portland0.291.50E+03Concrete,Cinder0.76NoDataConcrete,Stone1-2-4mix1.372.10E+03Cork,Corkboard,10lb/ft30.043160Cork,Ground0.04315

17、0Cork,Regranulated0.04580Diamond,Film7003.50E+03Diamond,TypeIIA2.00E+03NoDataDiamond,TypeIIB1.30E+03NoDataDiatomaceousearth0.061320E-GlassFiber0.892.54E+03Epoxy,HighFill2.163NoDataEpoxy,NoFill0.207NoDataFelt,Hair0.036265Felt,Wool0.052330Fiberinsulatingboard0.048240FR4EpoxyGlass,1ozCopper9.11NoDataFR

18、4EpoxyGlass,2ozCopper17.71NoDataFR4EpoxyGlass,4ozCopper35.15NoDataFR4EpoxyGlass,noCopper0.2941.90E+03Glass,Borosilicate1.092.20E+03Glass,Pyrex1.022.23E+03Glass,Window0.782.70E+03Glass,Wool,1.5lb/ft30.03824Insulex,dry0.064NoDataKapok0.035NoDataKapton0.156NoDataMagnesia,85%0.067270Mica0.71NoDataMylar0

19、.19NoDataNylon0.2421.10E+03Phenolic,Paperbased0.277NoDataPhenolic,Plain0.519NoDataPlaster,Gypsum0.481.44E+03Plaster,Metallath0.47NoDataPlaster,Woodlath0.28NoDataPlexiglass0.19NoDataPolycarbonate0.191.20E+03Polyethylene,Highdensity0.5950Polyethylene,Lowdensity0.35920Polyethylene,Mediumdensity0.4930Polystyrene0.106NoDataPolyvinylchloride0.16NoDataPyrex1.26NoDataRockwool,10lb/ft30.04160Rockwool,Loosely0.06764packedRubber,Butyl0.26NoDataRubber,Har