KS F 2463-2009 Method of thermal conductivity test for materials《利用加热板的材料导热率测试方法》.pdf

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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS F 2463 KS F 2463:2009 2009 6 17 http:/www.kats.go.krKS F 2463:2009 : ( ) ( ) ( )ANC ( ) ( ) : (http:/www.standard.go.kr) : : 1975 11 11 : 2009 6 17 2009-0273 : : ( 02-509-7290) (http:/www.kats.go.kr). 10 5 , . KS F 2463:2009 Method of thermal conductivity

2、 test for materials by means of the guarded hot plate 1 1.1 1.2 . , . 1.2 60 W m 2 K 1 , 6.1 . 1.3 , . (4.3 ), , 77 K , 550 K (4. ). , 550 K 1 350 K . . , (5. ). 550 K , . , . 1.4 ( ) . . 2 . . ( ) . KS F 2465, 3 KS F 2463:2009 2 3.1 (W m 1 K 1) C (W m 2 K 1) R (K m2 W 1) Q (熱流 速度 )(W) A (m2) L (m)

3、t1 (K) t2 (K) 3.2 1) : . .2)(/21ttAqL = (1) 3.3 C(2 ) : . . . LttAqC=)(21 (2) 3.4 R: . . LCR =1 (3) 4 (Metal-surfaced plate) 4.1 1 . . (heating unit), (cooling unit) (edge insulation) . . . 1 1 (guard heater) . 1) L, A . . , . 2) 1 . KS F 2463:2009 3 . , . 0.25 mm/m .3)4.2 , . , . 2 , . 4.3 3 mm .4)

4、 20 mm , . 3 mm . . 0.8 (total hemispherical emittance) . 4.4 . (temperature sensing element) . , . (差動的 ) . 0.5 % . , . 4.5 . . 3) , . 0.025 mm , (shim-stork) . 4) 6 % . KS F 2463:2009 4 4.6 . A5 , A m2 . . , . 4.7 , 0.5 % . 4.8 . , 10 W m 2 K 1 . . 10 Wm 2 K 1 , . 0.25 mm/m .5) . . , (composite sa

5、ndwich)( / / ) . , , . , . 4.9 0.57 mm . 0.29 mm . 77 170 K 1 % . 4.10 1 m 1 % . 4.11 , . 3 2 . Tc ( ). , 5) . . KS F 2463:2009 5 TTT )(mc 0.1 . Tm: T : . 2 1/5 . )/()(24(5amyTTTyxSxR+= x : (m) y : (m) S : ( ) (m) : (W m 1 K 1) Tm: (K) Ta: (K) T : (K) R (Tm Ta) T 0 , (Tm Ta) . 4.12 , , . 5 5.1 3 , .

6、 , , . “” , . (1) , (2) ( 1 1/2 2 1 ), (3) ( .) (4) . , . , . 1.3 . 2 . KS F 2463:2009 6 (5.11 ). , . 0.25 mm/m .3) 1 % . . 5.2 , . . . 0.5 % . , . , , . 0.7 , .6)5.3 , 2 mm .4) , , . (potential tap) .7)5.4 . . 1/4 . , . 0.5 % . (4.11 ). 5.5 . , , . 5.6 , , A5 . A 6) . 7) 6 2a 2 ( b ) . +221211abaKS

7、 F 2463:2009 7 m2 . . 5.7 (1) , (2) 0.5 % . , . , . 5.8 . . 0.25 mm/m 5) , . A10 . A m2 . , . , . 8), , 4.8 ( / / ) . 5.9 0.64 mm . 0.46 mm . . 5.10 1 V 0.1 % . 5.11 . (heat sink) .9)6 6.1 2 . , . 8) . . 9) . KS F 2463:2009 8 . ( )(mm) (mm) 33 50 75 100 100 150 225 300 50 75 113 150 6.2 , , . 0.25 m

8、m/m , 1 % . 6.3 (homogemous solid) (blanket-type) 6.1, 6.2 . 375 395 K , .10) . , . . . (blanket-type) (batt-type) KS F 2465 . 6.4 (loose-fill) . 375 395 K .10) ( A ). . . , . 7 7.1 5 K . 900 K/m . 10) 375 K 330 K . KS F 2463:2009 9 7.2 ( ) , 5 K . . 77 230 K . . 125 K . , . 7.3 (heating element) 0.5 % . , (input power) , 1 0.5 % . . . . . 4.4 5.4 . . . 4.11 . 7.4 2 1 % . 1 , 0.5 % . 7.5 , , . 7.6 . , , , . 7.5 4 1 % 30 .11)11) , 1 % 4 30 , . . KS F 2463:2009 10 7.7 . (out gassing) . , . ( ). 7.8 7.5 ,

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