GOST R 55042-2012 Non-destructive testing Evaluation of metallic coating thickness by ultrasound General requirements《无损检测 采用超声波估算金属镀层厚度 通用要求》.pdf

1、 550422012 27 2002 . 184- , 1.02004 . 1 - ( ), - . . ( )2 132 3 - 8 2012 . 699-4 1.02012 ( 8). ( 1 ) , -.() - . , - (gost.ru) , 2013 , - - II 5504220121 .12 13 , , .24 25 .36 .37 .38 .49 410 5 () 6 7III 550422012 -, . , - , . - . 27750 -: ( , ), -, . ( ) , . - . , , , . , , . - .IV 550422012 Non-des

2、tructive testing. Evaluation of metallic coating thickness by ultrasound. General requirements 201401011 - . , , . , .2 : 8.36279 . - . 9.00882 . 12.1.00189 . . 12.1.00491 . . 12.1.01979 . . - 12.1.03882 . . 12.2.00391 . . 12.2.013.091 . . 12.3.00275 . . 3274 . 276884 . 278973 . 625975 . . 1 5504220

3、12 661694 . 665194 . - 1729978 . 2626690 . . - 2775088 . . - - , 1 , -, . (), - () . , , , , .3 , , 3.1 8.362 9.008.3.2 :Vo ,/;Vn,/;h , ;c68ho , ;f , ;ti ;N - ;t , ;tn , ;T , t,;to - , ;ton -, ;T0 , to,;c108 , ;kT , - 1 C, 1/ C.3.3 : ; ; ; .4 4.1 , ( 100 ) 13.2 5504220124.2 - 26266.4.3 (-) , ( 0,6 )

4、 24 .4.4 .5 5.1 , - , - , .5.2 12.1.001, 12.2.003, 12.3.002 - 12.1.019 12.1.038.5.3 , , .5.4 4 5.5.5 12.1.004.6 6.1 , , - ( ), - .6.2 104.6.3 - .6.4 - 122 26266, .6.5 6651 6616 1 C - 0 C 60 C.6.6 6.6.1 12.2.013.0.6.6.2 172992768.6.6.3 , (, 6259; 6, 10, 18; - 32, ).7 7.1 , , .7.2 , .7.3 : ; , , , .7.

5、4 2789 - . , Ra 2,5 2789.3 5504220127.5 2 .7.6 0 C 60 C.7.7 , , -.8 8.1 c68ho.8.2 , c68ho - :-f=2,5 c68ho= c177 (12);-f=5,0 c68ho= c177 (0,51);-f=10 c68ho= c177 (0,25 0,5) .8.3 Vo, Vn, to.8.4 .8.5 - .8.6 .8.7 , , .8.8 , (, .).9 9.1 .9.2 .9.3 9.2 35 .9.4 t =tNiiNc61c2291.(1)9.5 c100=c115tt,(2) c115t