KS M ISO 178-2012 Plastics-Determination of flexural properties《塑料 弯曲性能测定》.pdf

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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS M ISO 178 KS M ISO 178:2012 2012 12 22 http:/www.kats.go.krKS M ISO 178:2012 : ( ) ( ) SREAP ( ) : (http:/www.standard.go.kr) : :2002 6 29 :2012 12 22 2012-0746 : : ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS M ISO 178:2012 i ii 1 1 2 2 3 .2 4 5 5

2、5 5.1 .5 5.2 5 5.3 .5 5.4 6 5.5 .7 6 8 6.1 8 6.2 9 6.3 9 6.4 10 6.5 10 7 .10 8 .10 9 .13 9.1 13 9.2 13 9.3 14 9.4 14 9.5 14 10 14 11 .14 A( ) .16 B( ) 18 19 KS M ISO 178:2012 ii 2010 5 ISO 178, Plastics Determination of flexural properties , . KS M ISO 178:2012 Plastics Determination of flexural pro

3、perties 1 1.1 . , . 1.2 , / . 3- . 1.3 . , , KS M ISO 10350 15 KS M ISO 13050 26 , 7.5 mm . KS M ISO 141257 ( ) 7.5 mm . . KS M ISO 1209 13 KS M ISO 1209 24 . 4- . KS M ISO 14125 . 1.4 , (ISO 20753 ) , , , . 1.5 . . , , . , . 1.6 , . KS M ISO 178:2012 2 1.7 / . - , . (80 mm10 mm4 mm) 3.5 % , (L/h) 1

4、6 1.5 h . . 1.8 , A B . A 1 %/min . B 1 %/min , / 5 %/min 50 %/min . 2 . . ( ) . KS A ISO 2602, KS B ISO 7500 1, 1: / KS B ISO 9513, KS M ISO 291, KS M ISO 295, KS M ISO 10724 1, (PMCs) 1: KS M ISO 23529, ISO 293, Plastics Compression moulding of test specimens of thermoplastic materials ISO 294 1:

5、1996, Plastics Injection moulding of test specimens of thermoplastic materials Part 1:General principles, and moulding of multipurpose and bar test specimens ISO 2818, Plastics Preparation of test specimens by machining ISO 16012, Plastics Determination of linear dimensions of test specimens ISO 207

6、53, Plastics Test specimens 3 . 3.1 v mm/min . 3.2 f 9.1 (5) MPa . KS M ISO 178:2012 3 3.3 fB ( 1 a b ) MPa . 3.4 fM ( 1 a b ) MPa . 3.5 fC3.7 sC ( 1 c ) MPa . 3.6 s ( ) mm . 3.7 sC h 1.5 . L 16 h , (3.8 ) 3.5 % mm . 3.8 f 9.2 (6) (7) . KS M ISO 178:2012 4 a: b: sC c: sC 1 f f, s 3.9 fB ( 1 a b ) .

7、3.10 fM ( 1 a b ) . 3.11 Ef f1 0.000 5 f2 0.002 5 f1 f2 , (f2 f1) (f2 f1) 9.3 (9) MPa . . 3.12 , 700 MPa . KS M ISO 178:2012 5 KS M ISO 4721 3.13 L , (mm) ( 2 ). 3.14 r (3.8 ) , s 1 % s 1 . 4 , . 5 %(3.8 ) , . . 5 5.1 KS B ISO 7500 1 KS B ISO 9513 , 5.2 5.4 . 5.2 1 (3.1 ) . 1 , v mm/min % 1a2 5 10 2

8、0 50 100 200 500 20 20 20 20 10 10 10 10 10 a 1 mm/min (1 3.5) mm (8.5 ). 5.3 2 . 0.2 mm . R1 R2 . KS M ISO 178:2012 6 R1 (5.00.2) mm R2 (2.00.2) mm 3 mm R2 (5.00.2) mm 3 mm L . 1 F h l R1 R2 L 2 5.4 5.4.1 KS B ISO 7500 1 1 . 5.4.2 KS B ISO 9513 1 . . . . , (h) 4.0 mm (L) 64 mm 3.4 m 1 % L/2LlhKS M

9、ISO 178:2012 7 ( 3 ). . . (crosshead) . . . (compliance correction) (crosshead) . s 64 mm 4 mm 3 5.5 5.5.1 5.5.1.1 ISO 16012 2 mm , ISO 16012 0.02 mm 0.01 mm . , 4 mm . 50 mm (spherical) (anvil) . 5.5.1.2 ISO 16012 0.02 mm . 1 mm 1 mm . 5.5.2 0.4260.0850.05 % 0.25 % 341 m3.4 mKS M ISO 178:2012 8 KS

10、M ISO 23529 . 6 6.1 6.1.1 , 6.1.2 6.1.3 . . 6.1.2 mm . l 80.02.0 b 10.00.2 h 4.00.2 1/3 2 % . 3 % . 6.4 . ISO 20753 . 6.1.3 2 . . , ( ) . 2 h b : mm h ba(0.5) 1 h3 25.0 3 h5 10.0 5 h10 15.0 10 h20 20.0 20 h35 35.0 35 h50 50.0 a 30 mm . KS M ISO 178:2012 9 6.2 6.2.1 . . , . 6.2.2 2 ( 20 %) . ( 4 ). L

11、 W LN WN LP WP 4 6.3 6.3.1 . ISO 293, KS M ISO 295, ISO 294 1 KS M ISO 10724 1 . KS M ISO 178:2012 10 6.3.2 ISO 2818 . 6.4 , ( ) , , (ISO 294 1 D ). , . . 1 2 . , . , (sink mark) . , . 6.5 6.5.1 5 ( 4 ). , 5 . (95 % , KS A ISO 2602 ) . 6.5.2 , 5 . (ISO 294 1 KS M ISO 10724 1 ) . 6.5.3 1/3 . 7 . KS M

12、 ISO 291 . KS M ISO 291 23/50 , . 8 8.1 b 0.1 mm , h 0.01 mm ( 1 5 ). h . 1 . KS M ISO 178:2012 11 . 2 % . (h) 0.1 mm . ISO 294 1 . 2 . . hm h : h( hm h) 0.1 mm 5 8.2 (1) L . hL )116( = (1) L 0.5 % . (6.1.2 ) 64 mm . , (1) . a) hL / . hL / 60 . b) 700 MPa( 3.12 ) , hL / . hL / 8 . c) 700 MPa( 3.12 )

13、 hL / . hL / 32 . 8.3 . / . , (f0)( 6 ) , (positive) . 0 f0510 4 Ef(2) KS M ISO 178:2012 12 fM,fC fB , f0 0.05 % . 0 f010 2 fX( X M, B C .) (3) , , . a 510 4Ef 10 2 f 6 / 8.4 . (8.3 ) ( 2 ). (crosshead) 1 mm/min . , 0 . 8.5 . , 1 %/min 1 . (6.1.2 ) 2 mm/min . (4) . hrLv6002= (4) , v : (mm/min) r : (

14、/min) L : (mm) h : (mm) 8.6 1 . / (8.5 ). (0.05 %0.25 %) , A(8.7 ) B(8.8 ) . 8.7 A( / ): (8.5 ) . KS M ISO 178:2012 13 8.8 B( / ): (8.6 ) , , . . , 5 %/min 50 %/min 1 . (6.1.2 ) 10 mm/min 100 mm/min . 10 mm/min . 100 mm/min . 1 . 1 mm/min , 0.25 % 5 mm/min 50 mm/min (KS M ISO 10350 1 ). 2 , (crossh

15、ead) 10 (5 50) mm/min 8 % . B . 8.9 . / 9.1 (5) . , 3. / / . 9 9.1 (3. ) . 2f23hbFL= (5) f : F : (N) L : (mm) b : (mm) h : (mm) 9.2 (3. ) . 2f6Lsh= (6) %6002fLsh= (7) f : ( ) s : (mm) h : (mm) L : (mm) KS M ISO 178:2012 14 9.3 (3.8 ) (8) f1 0.000 5 f2 0.002 5 s1 s2 . hLsii62f= (i 1 2)(8) si : (mm) fi : L : (mm) h : (mm) (3.11 ) (9) . f1f2f1f2f=E

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