|
|
Influence of a particullar heat on properties and structure of duplex steel welded joint
Němec, Karel ; Kubíček, Jaroslav (referee) ; Daněk, Ladislav (advisor)
The research project is focused on an influence of a particullar heat on properties and structure of duplex steel DIN 1.4462. Samples prepared by using different welding speeds 10, 15, 20, 25, 30 cm.min-1, were tested for tensile, metalographical analysis and hardness test. Experimental results proved the optimal welding speed for material with 2 mm thickness to be 15 cm.min-1. Usage of lower speed 10 cm.min-1 led to formation of hot cracks while higher speeds 20, 25, 30 cm.min-1 didn‘t cause material penetration.
|
|
|
Mode of production of PREWAG bridge concrete
Chalupa, Karel ; Daněk, Ladislav (referee) ; Kubíček, Jaroslav (advisor)
This diploma thesis introduces manufacturing documentation needed for the production of a PREWAG welded steel structure. It deals with the execution of the welds as well as with the construction execution and the technological and welding procedure in the production. A selection of drawing documentation and particular WPS techniques is included.
|
|
|
Mode of production of PREWAG bridge concrete
Chalupa, Karel ; Daněk, Ladislav (referee) ; Kubíček, Jaroslav (advisor)
This diploma thesis introduces manufacturing documentation needed for the production of a PREWAG welded steel structure. It deals with the execution of the welds as well as with the construction execution and the technological and welding procedure in the production. A selection of drawing documentation and particular WPS techniques is included.
|
|
|
Influence of a particullar heat on properties and structure of duplex steel welded joint
Němec, Karel ; Kubíček, Jaroslav (referee) ; Daněk, Ladislav (advisor)
The research project is focused on an influence of a particullar heat on properties and structure of duplex steel DIN 1.4462. Samples prepared by using different welding speeds 10, 15, 20, 25, 30 cm.min-1, were tested for tensile, metalographical analysis and hardness test. Experimental results proved the optimal welding speed for material with 2 mm thickness to be 15 cm.min-1. Usage of lower speed 10 cm.min-1 led to formation of hot cracks while higher speeds 20, 25, 30 cm.min-1 didn‘t cause material penetration.
|
guest ::
