Heat treatment of petrofer oil quenching harderning in the tempering process is used to increase the hardness value of S45C steel. PT Instatama conducts heat treatment of petrofer oil harderning quenching in order to produce high quality bolts. Heat treatment process on a large scale carried out at PT. Insastama, there are problems, namely the difference between the inner hardness value and the…
Superheater is one of the components of a boiler that has a crucial function, superheater functions to produce superheated steam which is used to drive turbines. Water vapor flowing into the superheater pipe will have a heat transfer in the pipe. The water vapor in the superheater pipe is not always clean, therefore there is often a sediment inside the superheater pipe. The longer the deposits …
In the construction planning of a building at the present time, has experienced quite rapid development, there are several types of building structures that are used, including steel structures, reinforced concrete structures and precast concrete structures. These three elements differ in terms of the nature of the material aspects, methods of implementation that affect the time of implementati…