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..

:

: . 24-2536

.. (.. ) .. : .. : . 24-2548

: . 24-2548

..

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3.

3.1 3 5

7(1) SD 30(2) SD 40(3) SD 50

4. 4.1 1

1 (2.5 2.7 4.1)

1. SN =

2. WN = 0.007 85 SN

3.141 6 dN2

4

(WN)

(dN)(SN) kg/m

mm mm2

DB 6 6 28.3 0.222

DB 8 8 50.3 0.395

DB 10 10 78.5 0.616

DB 12 12 113.1 0.888

DB 16 16 201.1 1.578

DB 20 20 314.2 2.466

DB 22 22 380.1 2.984

DB 25 25 490.9 3.853

DB 28 28 615.8 4.834

DB 32 32 804.2 6.313

DB 36 36 1 017.9 7.990

DB 40 40 1 256.6 9.865

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4.2 4.2.1

2 34.2.2 1

2 49.1

2

(4.2)

4.3 39.2

%

kg/m DB 6 0.222 8 7

DB 8 0.395

DB 10 0.616

DB 12 0.888 6 5

DB 16 1.578

DB 20 2.466

DB 22 2.984 5 4

DB 25 3.853

DB 28 4.834

DB 32 6.313

DB 36 7.990 4 3.5

DB 40 9.865

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10 + 55 0

10 + 55 + 5 1 10 120 0

3 (4.3)

4.4 49.3

4 ()(4.4)

DB 6 4.2 0.2 0.5 4.7

DB 8 5.6 0.3 0.6 6.3

DB 10 7.0 0.4 0.8 7.9

DB 12 8.4 0.5 1.0 9.4

DB 16 11.2 0.7 1.4 12.6

DB 20 14.0 1.0 2.0 15.7

DB 22 15.4 1.1 2.2 17.3

DB 25 17.5 1.3 2.6 19.7

DB 28 19.6 1.4 2.8 22.0

DB 32 22.4 1.6 3.2 25.2

DB 36 25.2 1.8 3.6 28.3

DB 40 28.0 2.0 4.0 31.4

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5

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5.

5.1 5

5 69.4

5 (3.1 5.1)

6 (5.1)

6.

6.1 6.1.1 ( )

6.1.2

+ (/6)

SD 30 0.27 - 0.05 0.05 0.50

SD 40 - 1.80 0.05 0.05 0.55

SD 50 - 1.80 0.05 0.05 0.60

+0.03

+0.05

+0.01

+0.01

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6.3.2 9.6

7. 7.1

(1) (2) (3) (4) T ( (heat treatment)

)7.2

(1) (2) (3) (4) T ()

(5) () ()(6) (7) (8)

7.3

8.

8.1 (lot)

8.2

8.2.1 ()

8.2.1.1 8 1

8.2.1.2 4.4 8

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8.2.2

8.2.2.1 8.2.1 1

1.50 8 1 1.50

8.2.2.2 4.3 6.1 6.2 8

8.2.3 8.2.3.1 8.2.2 8.2.3.2 4.2.1 8

4.2.2

8

(8.2.1 8.2.2 8.2.3)

8.2.4 8.2.4.1 8.2.3 3

500 3 2 1 1

8.2.4.2 8.2.4.1 1 500 1 1

/

150 5 0

150 500 20 1

500 32 2

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8.2.4.3 5.1 6.3.1 6.3.2 (1) 6.3.1

6.3.1

(2) 6.3.1 (1) 14 7

(3) 6.3.1

(1) 14 7 2

6.3.1 (4) 6.3.2

2 6.3.2

0.2

8.3 7. 8.2.1.2 8.2.2.2 8.2.3.2 8.2.4.3

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9.

9.1

9.1.1 9.1.1.1 1 9.1.1.2 1

9.1.2 1 1 5

9.1.3 4

9.2 9.2.1

9.2.1.1 0.02 9.2.2

9.2.2.1 10

9.2.2.2 2 3 2

9.2.2.3 1 2 10 10

2 10

9.2.2.4 9.3

1

9.4

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9.5.3 . 244 4

9.5.4 9.5.4.1

(1)

Rm =

Rm Fm SN

(2)

Rm =

Rm Fm k

k =

W WN

S

S =

dm 9.5.4.2

(1)

Re =

Re Fe SN

Fm

SN

k x Fm

S

W

WN

3.141 6 dm2

4

Fe

SN

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(2)

Re =

Re Fe k

( 9.5.4.1(2))S

( 9.5.4.1(2)) 1. 1 9.807

2. 19.5.4.3

A = x 100

A Lo Lu

9.5.5

9.5.5.1 (1) (2) (3) (4)

(5) k

(6) 2 (7) (8) (9)

9.5.5.2 1

k x Fe

S

LuLo

Lo

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9.6 9.6.1

9.6.1.1

9.6.1.2 U 9

U

9 (9.6.1.2 9.6.3)

9.6.2 9.6.2.1 9.6.2.2 U

9.6.3

9

9.6.4

mm

SD 30 16 180o 3

16 4

SD 40 180o 5

SD 50 25 90o 5

25 6