ij , | , | ||||
σ | σ | ||||
100300 | 152207 | ||||
192228 | |||||
100300 | 167217 | ||||
125 | 235262 | ||||
80 | 269302 | ||||
228255 | |||||
123 | 200 | HRC5663 | |||
16 | 200 | HRC5663 | |||
20 20 18 12 25 | 120 | HRC5663 | |||
35 | 60100 | HB190211 | |||
35 | 200 | HB220260 | |||
40 | 100200 | HB200230 | |||
40 | 120 | HB260282 | |||
40 | 1 20150 | HB240270 | |||
40 | 1 50180 | HB230257 | |||
35 | 200 | HB269302 | |||
35 | . | 200 | HB269302 | ||
40 | 315 | 235262 |
HRC, HRC 10.
3.1.2.2.³
;
(3.2)
, , /;
, .
.
3.1.2.3. NHO
NHO , , , . 3.2
NHE> NHO, HL=1
NHE< NHO, HL :
(3.3)
HL>1 , . HL : HL<2,6 HL<1,8; 1 < HL<1,4.
3.1.2.4.
(3.4)
, , ,
(
) ( ) .3.2.
,
NFE > NFO
3.1.2.5.³
;
(3.5)
, , /;
, .
.
3.1.2.6. NFO
NFO , , NFO=4 106
NFE > NFO, FL=1
|
|
NFE< NFO, FL :
(3.6)
, mF , ,
>H 350 mF=9;
<H 350 mF=6.
! 䳿 , FL : FL<1,63 mF=9; FL<2,.08 mF=6.