, .
, .
: 1; 1,25; 1,6; 2; 2,5; 3,15; 4; 5; 6,3; 8; 10; 12,5; 16; 20; 25 .
(. 18.6):
. 18.6.
, . . , :
q . q (. 18.1);
18.1. q ()
2; 2,5; 3,15; 4; 5; 6,3; 8; 10 | 12,5 | ||
q | 8; 10; 12,5; 16; 20; 25 | 8; 10; 12,5; 16; 20 | 8; 10; 12,5; 16; 20 |
. 18.7.
. , , (. . 11.24).
, , .
z2 .
: () 0<< 1 ( = 0,5); ( ) 1,0<<1,4 ( - 1,1...1,2). .
1 <0
(>0) . 1 (18.6), (70 + 60x)m/z2-
{ .
(. 27.4).
:
( )
(. 18.8):
. 18.8.
d2 = dw2 = m z2
da2 = d2 + 2m(l +); |
{
|
|
df2 = d1-2m(1,2-x)
dae2<da2 + 6m /(zx + C). (18.9) (18.10) (18.11) (18.12)
=2 () ; =4 , .
( )
aw .
.
: 40, 50, 63, 80, 100, 125, 140, 160, 180, 200, 224, 250, 280, 315, 355, 400, 450, 500 .