Superheater is one of the boiler components that works to heat saturated steam coming out drum, by utilizing hot gases from combustion. In this study using Gas Tungsten Arc Welding (GTAW) and SA-213 grade T91 T22, these two materials require Post Weld Heat Treatment (PWHT). One crucial factors in PWHT holding time, because time aims obtain a homogeneous temperature microstructure can affect mec...

Material A 106 Gr. B termasuk dalam material seamless carbon steel pipe, dan sering digunakan untuk high-temperature service. Penelitian ini pemodelan menggunakan pipa B, 4 inch, sch 80 dengan panjang 150 mm. Proses pengelasan yang adalah GTAW SMAW. Untuk menemukan proses las parameter paling efektif pada setiap layer flowline, membandingkan variasi kuat arus listrik terhadap hasil uji sifat me...

The design, testing, and implementation of a versatile algorithm developed to provide robust real-time processing of images for use with a visionbased computer control system is discussed. A generic approach to the implementation of the image-processing algorithm has been employed, allowing a wide variety of imaging devices to be used. The particular application of this work involves the implem...

Observing the weld pool and measuring its geometrical parameters are key issues for developing the next generation intelligent welding machine and modeling the complex welding process. In the past few years, different techniques have been applied, but the dynamic specular weld pool surface and the strong weld arc complicate these approaches and make observation difficult. To resolve the problem...