.
70. :
C=0.67-0.75%
Mn=0.50-0.80%
Si=0.17-0.37%
Cr>=0.25%
Cu>=0.20%
Ni>=0.25%
P>=0.035%
S>=0.035%
1.1
| , | |||
| () | 1030 550 | (24-) | |
| () | 1030 430 | (24-) |
t (.) (, - , , , .)
t = ( + ) (1 + 
), (2.1)
(), .;
, .;
α ( );
β ( ).
, t :
t = (1,46 + 0,24) (1 + 
)=2,1
.
(.) t
=8/ t =8*60/2,1=228,6 (2.2)
3. ,
mp .
mp = 
. (3.1)
ti ( -) , ./.;
( 1.2);
F , . (3975 2- ).
:
mp = 
= 1,1
m ( , 0,1).
m =1,
Ni Ni (.) ( ) , ΔZ (.) δ (%)
Ni = (Ni 
Z) 
. (3.2)
Ni = (194180 500) 
=194680
() :
= 
. (3.3)
= 
= 1
, .. 0,85 1,0.
|
|
|
, , , , . .
, . 2.
.
: () , , .
( ) , t - t .
= 
; (4.1)
F , . (.. , 2005 . 2032 );
mj ( ), .;
.
= 
=2,8.
= , (4.2)
, ( 1,14÷1,19).
2,81.17=3,3
, , 4.1 - [ 6 ].
4.1.
4.1.
| () | 5-6 | ||
| 3-5 | |||
| 11-13 | |||
| 8-11 | |||
| () | 5-6 | ||
| 3-5 | |||
| 11-13 | |||
| 8-11 |
