1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS D 4128 KS D 4128:2009 2009 6 16 http:/www.kats.go.krKS D 4128:2009 : ( ) ( ) ( ) POSCO ( ) ( ( ) ( () KIST ( ) : (http:/www.standard.go.kr) : : 1994 4 26 : 2009 6 16 2009-0270 : : ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS D 4128:2009 Cast short a
2、nd grit 1 , , (etching), ( .) . 2 . . ( ) . KS A 5101 1, 1: KS B 0811, KS D 1652, KS Q 5002, : 3 1 . 1 . F- . S- 4 2 3 . KS D 4128:2009 2 2 % % % % % 280 S280 3360 0 2380 90 2000 7 3360 2000 97 240 S240 2830 0 2000 85 1680 12 2830 1680 97 200 S200 2380 0 1680 85 1410 12 2380 1410 97 170 S170 2000 0
3、1410 85 1190 12 2000 1190 97 140 S140 2000 0 1680 5 1190 80 1000 11 2000 1000 96 120 S120 1680 0 1410 5 1000 80 840 11 1680 840 96 100 S100 1410 0 1190 5 840 80 710 11 1410 710 96 80 S80 1190 0 1000 5 710 80 590 11 1190 590 96 75 S75 1190 0 1000 5 590 80 500 12 1190 500 97 70 S70 1000 0 840 10 590 7
4、5 500 12 1000 500 97 60 S60 840 0 710 10 420 75 350 12 840 350 97 40 S40 590 0 500 10 297 70 177 10 590 177 90 35 S35 590 0 500 10 210 75 125 10 590 125 95 30 S30 420 0 350 10 177 70 125 10 420 125 90 KS A 5101 1 . 3 % % % % 240 G240 2830 0 2000 80 1680 10 2830 1680 90 200 G200 2380 0 1680 80 1410 1
5、0 2380 1410 90 170 G170 2000 0 1410 80 1190 10 2000 1190 90 140 G140 1680 0 1190 75 1000 15 1680 1000 85 120 G120 1410 0 1000 75 710 15 1410 710 85 100 G100 1190 0 710 70 420 20 1190 420 80 70 G70 1000 0 420 70 297 20 1000 297 80 50 G50 710 0 297 65 177 25 710 177 75 30 G30 420 0 177 65 125 25 420 1
6、25 75 20 G20 297 0 125 60 74 30 297 74 70 KS A 5101 1 . 5 (atomizing) , . . KS D 4128:2009 3 6 ( ) . a) 5 % . 2 . b) 10 % . 7 ( ) 7.1 10 % . 10 % . 7.2 10 % . (dendrite) , 40 % . 7.3 15 % , 40 % . 3 20 % . 7.4 1 % . 7.5 4 . 4 : % C Mn Si P S S30 S40 0.35 1.2S60 0.5 1.2 S70 S280 0.85 1.2 0.6 1.2 0.4
7、1.50 0.050 0.050 7.6 . a) 90 % HV393 513(HRC40 57) . b) 90 % . KS D 4128:2009 4 7.7 a) . b) , , , 15 % . 7.8 7 g/cm3 . 7.9 , , . 8 ( ) 8.1 , , , , . a) 100 , . b) ( .) . c) , . d) . 8.2 10 . (%) 100 8.3 10 . (%) 100 8.4 10 . (%) 100 8.5 10 . KS D 4128:2009 5 (%) 100 8.6 . (%) 100 8.7 a) KS D 1652 6.
8、5 . b) KS D 1652 . 8.8 a) 10 . b) KS B 0811 . , S80 500 gf , S100 500 1 000 gf . 8.9 a) (1 5 %) 500 10 . b) . (%) 100 8.10 a) 100 mL 50 mL 100 g . b) 100 g . 9 . a) 4. . b) 6. . c) , , 7.1, 7.2, 7.3, 7.4 . d) 7.5 . e) 7.6 . f) 7.7 . g) 7.8 . h) 7.9 . KS D 4128:2009 6 10 . 1 F-S170( 170 S170 ) 2 F-G7
9、0( 70 G70 ) 3 S-S70( 70 S70 ) 4 S-G100( 100 G100 ) 11 . a) b) c) d) e) KS D 4128:2009 7 A ( ) A.1 . A.2 A.2.1 a) (Rotap) (篩別幾 ) . . b) KS A 5101 1 . , 200 mm , 25 mm 45 mm . A.2.2 100 g , 2 3 , , 145 160 , 275 295 5 . 0.1 g 0.1 g . , 98 % . , 2 , . A.2.3 g . 1 , KS Q 5002 . 135513 7017 (02)60094114 (02)600948878 http:/ KS D 4128:2009 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Cast short and grit ICS 77.140.20 Korean Agency for Technology and Standards http:/www.kats.go.kr
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