GOST R 8 747-2011 State system for ensuring the uniformity of measurements Metals and alloys Vickers hardness test Part 3 Calibration of reference block《国家测量一致性保证体系 金属和合金 维氏硬度试验 标准.pdf

1、 8.7472011( 6507-3:2005) . 3 ISO 6507-3:2005Metallic materials Vickers hardness test Part 3: Calibration of reference blocks(MOD) 27 2002 . 184- , 1.02004 . 1 - - , 42 3 13 2011 . 1070-4 6507-3:2005 . . 3. - (ISO 6507-3:2005 Metallic materials Vickers hardness test Part 3: Calibrationof reference bl

2、ocks) (, , ), . - . - 1.52004 ( 3.5)5 , - . () . - , , 2013 , - - II 8.74720111 .12 13 24 25 .46 .47 48 .59 .5 () . . 6III 8.7472011 . 3 State system for ensuring the uniformity of measurements. Metals and alloys. Vickers hardness test.Part 3. alibration of reference block 201305011 , - , 8.695 8.33

3、5. c1790,020 .2 : 8.6952009 ( 6507-2:2005) -. . . 2. - ( 6507-2:2005 . . 1. , MOD) 6507-12007 . . 1. ( 6507-1:2005, IDT) 8.0632007 . - 8.3352004 . - . 278973 . 950084 . - - , 1 , , . (), - () . , , , , .1 8.7472011( 6507-3:2005) 3 3.1 ( ) . , -, .3.2 , , 5 .3.3 . , , , .3.4 - 0,005 . 50 0,010 .3.5 ,

4、 . ( 2789) Ra 0,00005 0,0008 . l 0,80 .3.6 , , - 0,01 - . 8.1, ).4 4.1 , 8.695, - , 4.24.6.4.2 , 12 . :) ;b) ;) ;d) .4.3 , , .4.4 () - (), 6507-1,-:- c177 0,1 % () c1791,961 H;- c177 0,5 % () 0,200 0,0005 0,0001 - . , - 2.3 8.7472011 1 5 - 4, (23 c177 5) C, , 6507-1. 1 C. () -, ,- 3. 3 () F, (), , /

5、cF 1,961 c163 10 0,05 0,21,961 c163 F 49,03 c163 10 0,05 0,2F c179 49,03 6 8 0,05 16 , - . , - . 10, 15 25 - .7 7.1 d1,d2,d5, , d =ddddd123455c43c43c43c43.(1) U -U=d5d1 (2) Urel, Urel=10051()dddc45. (3)7.2 Urel4. 4 Urel,% HV 0,2a HV 0,3 HV 5 HV 10 HV 100 225 HV4,0 0,001 b3,0 2,0 225 HV 2,0 1,0a 150

6、HV 8 % 0,001 .b , .4 8.7472011 - .7.3 - .8 8.1 :) , , ,249 HV 30;b) ;c) ;d) ;e) (. 3.6);f) .8.2 , , .8.3 , , -, :) ;b) ;c) ;d) . , , (reference) - . .9 (), , 3. , - .5 8.7472011 A() , - , 8.063.A.1 , :- ;- ;- ;- , 8.695 ( B).A.2 , - . u -u= uu u uCRM xCRM CRM D msc45c45c45c43c43c43121222,(A.1) uCRM1

7、 - k =1;uxCRM1 , ;uCRMD ;ums , .: 400,1HV30(k = 1) uCRM= c177 2,5HV uCRMD=0 ms = 0,1c109 m A.1 .2. A.1 d, H,HV1 0,3734max399,0min2 0,3730 399,93 0,3725min400,9max4 0,3728 400,35 0,3729 400,3 0,37292 400,1 sxCRM10,00033 0,70 uxCRM10,00017 0,366 8.7472011uxCRM1=tsnxc215c45CRM 1= 0,36 (A.2)(t = 1,14 n =5). A.2 Xi xi u(xi) ci ui(H)uCRM400,1 HV30 2,5 HV 1,0 2,5 HVuxCRM10 HV 0,36 HV 1,0 0,36 HVums0 HV 0,1c109 m = 0,000 1 2 146,0a0,06 HVuCRMD0 HV 0 HV 1,0 0 HV u2,53 HV c=c182H/c182d = 2(HV/d) (A.3) H = 400,1 HV; d = 0,37292 .A.3 uCRM= uuCM xCRM222c43c45,(A.4) uRM ;uxCRM2 ,