Teoretyczna analiza podatności na pęknięcia zimne materiału po spawaniu
Teoretyczna analiza podatności na pęknięcia zimne materiału po spawaniu
Wersja angielska, napisana przeze mnie , chyba nie będzie trudności z odczytaniem.
EXAMPLE
Material and chemical composition:
Carbon equivalent
Hardening in the material in HAZ
Hv = 1200Ce-200
Thermal Severity Number (TNS)
TNS = g1/6 + g2/6
g1, g2 – thickness of material
TNS = 8/6 + 3/6 = 1,83
The higher TNS - higher propability of cracking in HAZ , 1,83 is really small value for TNS.
Conclusion:
Probability of cracking in Heated Affected Zone is very small
Autor: Artur Mydlarz
Wersja angielska, napisana przeze mnie , chyba nie będzie trudności z odczytaniem.
EXAMPLE
Material and chemical composition:
part
|
Material
|
C
|
Mn
|
Si
|
P
|
Ti
|
V
|
S
|
Tube
|
E275
|
0,21
|
1,4
|
0,35
|
0,045
|
-
|
-
|
0,045
|
Sheet bracket
|
S650MC
|
0,12
|
2,0
|
0,10
|
0,010
|
0,15
|
0,20
|
0,015
|
Carbon equivalent
| Material |
Ce
|
| E275 |
0,44
|
| S650MC |
0,45
|
Ce<=0,45 – good welded steel
Hv = 1200Ce-200
| Material |
Hv
|
| E275 |
335
|
| S650MC |
334
|
Dla Hv < 350 propability of cracking in HAZ very low
Thermal Severity Number (TNS)
TNS = g1/6 + g2/6
g1, g2 – thickness of material
TNS = 8/6 + 3/6 = 1,83
The higher TNS - higher propability of cracking in HAZ , 1,83 is really small value for TNS.
Conclusion:
Probability of cracking in Heated Affected Zone is very small
Autor: Artur Mydlarz
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