KS M 2450-2007 Test method for low-temperature viscosity of automotive fluid lubricants measured by brookfield viscometer《布鲁克菲尔德粘度计测量汽车发动机润滑油低温粘度测试方法》.pdf

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1、 KS M 2450KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS KS M 2450 : 2007 2007 8 30 http:/www.kats.go.krKS M 2450: 2007 : () ( ) GS () SK() () ( ) : (http:/www.standard.go.kr) : :2001 11 27 :2007 8 30 2007-0533 : : ( 02-509-7270) (http:/www.kats.go.kr ). 7 5 , . KS M 2450 : 2007 Test method for lowtempera

2、ture viscosity of automotive fluid lubricants measured by brookfield viscometer 1 1.1 . 500 1 000 000 mPa s . 5 40 . 1 , . 2 . . KS A ISO 5725 1, ( ) 1 : KS A ISO 5725 2, ( ) 2: KS A ISO 5725 3, ( ) 3: KS A ISO 5725 4, ( ) 4 : KS A ISO 5725 5, ( ) 5 : KS A ISO 5725 6, ( ) 6: ASTM D 341, CEC L18 A 80

3、 3 . 3.1 (apparent viscosity) KS M 2450: 2007 2 (dynamic viscosity). ( ) . B.1 . 3.2 (Newtonian standard reference fluid) , B.2 . 4 4.1 , . 16 h 5 40 (cold cabinet) . (torque) . . 5 5.1 , , , ( B ) . . 5.2 . 2 . (rotor) . A.1 . 6 6.1 LVT ( , LVD-II+) . . 6.2 (viscometer spindle) No.4 No.4B2 . ( , 3

4、). 1 mm . . No.4B2 , . . 1 . KS M 2450: 2007 3 3 . 1 No.4 LV 6.3 , (spacer) 6.4 (test cell) 22 22.5 mm, (1155) mm 6.5 ( 2) 6.6 ( 2) (Balsa wood) 4 0.1 , ( 10 ). 6.7 ( 5 ). (hand hole) . 5 40 0.3 . . , CEC L18 A 80 . A.2 , . . 5 16 h 0.1 . . KS M 2450: 2007 4 : mm 2 6.8 (turntable) . 3 5 r/min . . 6.

5、9 0.1 ( ) 5 40 . , IP (total immersion thermometer) (RTD) ASTM 63C( 8 32 ) . IP 94C 45 35 ASTM 122C IP 95C 35 25 ASTM 123C IP 96C 25 15 ASTM 124C IP 97C 15 5 ASTM 125C RTD 0 40 . RTD . . . 6.9.1 , 0.1 ( ) 5 40 ( ). RTD . A.4 . 2625 21.7 12.7 7575 12.7 150 2543 16 20 38 6 3 4.9425 ( )KS M 2450: 2007

6、5 6.10 (blank cell) 7 7.1 , A.3 A.5 . . A.3 . A.3 , . 8 8.1 8.1.1 . . 8.1.2 , . 6 , 1 h . . . 8.2 8.2.1 30 mL . ( ) . . . B.2 r/min . 0.4 , 0.3 . 7 , r/min 2 . 8.2.2 . (503) (305) min . , . 8 ASTM , . . KS M 2450: 2007 6 8.3 (255) , . 8.3.1 (6.4) (6.5) (6.2) (6.3) . ( ). . 1 . 9 , (7. ). , . 8.4 . .

7、 . 8.5 16 h . 17.8 6 h . , 16 h (8.10 ). 8.6 . 8.6.1 ( ). 8.6.2 , S64 No.4 No.4B2 . S64 . 2 . 10 . 8.7 16 h , ( ). 8.7.1 . 11 . 8.7.2 . 8.7.3 . 8.7.4 , . 12 0.1 , 15 h 30 min 30 min . KS M 2450: 2007 7 . . 8.7.5 . . 8.7.6 . . 8.7.7 mPa s . 8.7.8 . , . . . 13 1.2 mm . 8.7.9 . 8.8 . 8.8.1 r/min 9. . 5

8、 . 8.8.2 (mPa s), (r/min) ( ) . 8.9 30 . 60 ( 150 000 mPa s 90 ) . 2 2 ( / 1 ). , . . , 2 . 1 r/min r/min (mPas) 0.6 10 000 400 000 1 000 000 1.5 4 000 200 000 400 000 3.0 2 000 100 000 200 000 6.0 1 000 50 000 100 000 12.0 500 20 000 50 000 30.0 200 9 800 20 000 60.0 100 500 9 800 KS M 2450: 2007 8

9、 14 r/min , r/min . 2 r/min , min 0.6 5 3 1.5 3 4.5 3.0 3 9 6.0 2 12 12.0 1 12 30.0 30 s 15 30 . 2 . 60.0 30 s 30 30 . 2 . 8.10 2 h , 18 h . 8.11 , . 15 . . . . 8.12 , . 9 (r/min) 9.1 r/min (A.1 ). 1 r/min . 9.2 , r/min . 1 r/min . 1 . . ( ) ( 50). 9.3 , r/min . r/min 0.6 60 r/min . . KS M 2450: 200

10、7 9 10 10.1 , 1 . 10.2 A.2 . 11 11.1 , r/min . r/min . 11.2 , , , r/min 9.3 . . 12 12.1 12.1.1 20 1 . 3.79(X/1 000)1.7 X: (mPa s) 12.1.1.1 . 20 000 mPa s: 616 mPas 100 000 mPa s: 9 520 mPa s 50 000 mPa s: 2 930 mPas 200 000 mPa s: 30 930 mPa s 12.1.2 20 1 . 11.34(X/1 000)1.7 X: (mPa s) KS M 2450: 20

11、07 10 12.1.2.1 . 20 000 mPa s: 1 850 mPa s 100 000 mPa s 28 560 mPa s 50 000 mPa s: 8 790 mPa s 200 000 mPa s 92 790 mPa s 12.1.3 KS M 2450 . 12.2 12.2.1 2 . 500 1 700 mPa s , 6 10 . 1 700 200 000 mPa s , 8 (formulated oils) 11 . 12.2.2 . 13 . a) b) c) (11. ) d) e) KS M 2450: 2007 11 A ( ) A.1 A.1.1

12、 , . . A.1.2 . . A.1.3 . A.1.4 , . A.1.5 . A.1.5.1 . . A.1.5.2 ASTM ( ASTM D 341) . . A.1.5.3 r/min , r/min . r/min , . A.2 A.2.1 . , , . A.2.2 . dS/dt k(S B) (A.1) S : KS M 2450: 2007 12 t : B : k : 1 (A.1) (S B) Cekt (A.2) C : e : e log(2.718 28+) (A.2) . ktCABS+=ln)(ln (A.3) A.2.3 0.12 0.040 k , 0.08 . C 0 . ln C 4.45 4.80 . , . A.3 A.3.1 ( , ) , .

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