Optimizing the Cost of Manufacturing Welded Thermo-resistant Steel Pipes
Journal Title: Analele Universitatii "Eftimie Murgu" Resita. Fascicula de Inginerie - Year 2017, Vol 24, Issue 1
Abstract
The presence of stresses in the pipes of unalloyed and low alloyed steels with characteristics specified elevated temperature (high-temperature) can be put in the pipe-Dent the deformations occurring in the welded parts and the knowledge of their size allows to appreciate the ability of the test structures welded. To remove or reduce residual stresses and consequently to dimensional stabilization of the parts, use the thermal process. Comparisons have been made regarding the di-mensional stabilization of the welded assembly by heat treatment of stress relief and dimensional stabilization by means of low frequency mechanical vibrations. Starting from the technological flow, two simula-tions were performed and the results obtained determined that the processing times were reduced in the case of vibration stabilization. The vibration stabilization system decreases thus reducing the manu-facturing costs and consumes only a fraction of the heat demanded by the heat process, being one of the processes used predominantly for large welded assemblies, the intent being capable of being chipped at the place where the process of production.
Authors and Affiliations
Lenuța Cîndea, Iuliana Zburlea, Cornel Hațiegan, Cristian Rudolf
Keywords
Related Articles
- EP ID EP445068
- DOI -
- Views 86
- Downloads 0
Development of Water Supply and Billing Systems for Effective Utility Distribution
Safe drinking water is a strong constraint to the attainment of Millennium Development Goals by 2020. The water supply coverage of 38.3% of the total population corresponds to 45 litres per person and an average supply p...
The Role of Virtual Laboratories in Improving Students Learning Performance
It is known that experiments and hands-on learning are attractive for actual students. Furthermore, visualization permits an in-deep understanding of the learning content with beneficial consequence on the students’ perf...
High-speed Microcontroller Based System to Real-time Analyzing the Mechanical Waves in Structures
Nowadays high-speed microcontrollers are employed to accomplish many applications in different domains, due to their flexible characteristics and structures. In this paper, the microcontroller algorithm per-forms a fast...
On the Optimal Selection of Electrical Machines Fans
In this paper an analytic relationship for electrical machine fan design has been developed. In the particularly case of salient poles synchronous machine (with salient poles – for electromagnetic field excitation or sur...
Analyzing the Energy and Exergy of Photovoltaic Array for Kerman Climate
The energy efficiency and exergy efficiency of recommended photovoltaic (PV) array are calculated for Kerman climate. Since energy efficiency and exergy efficiency of PV array is dependent on weather conditions, the reco...