Improvement in Reliability of Gas Pressure Welds on Rails
| Autor: | Yasuto Fukada, Katsuyoshi Ueyama, Ryu-ichi Yamamoto, Mitsumasa Tatsumi |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Engineering
business.industry Mechanical Engineering Metals and Alloys Mechanical engineering Welding Structural engineering Surfaces Coatings and Films Grinding law.invention Flash welding Reliability (semiconductor) Gas pressure Mechanics of Materials law Flash (manufacturing) Surface grinding business |
| Zdroj: | QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY. 21:39-45 |
| ISSN: | 0288-4771 |
| Popis: | In the Japan railway company group, rails are welded at over 50,000 points every year, of which those welded by the gas pressure welding (GPW) method account for approximately 30 %. Because gas pressure welds have as good performance as flash welds, and the GPW equipment is highly mobile due to its compactness when compared with that of flash welding. However, GPW requires special skill for grinding end surfaces and controlling oxyacetylene flame and pressure. In the future, a number of skilled operators to perform GPW will decrease, and the improvement of the operational efficiency will be strongly demanded. Therefore, investigations have been performed to simplify end surface grinding. Consequently, new gas burners and the new applied pressure method used for GPW were developed in order to improve its reliability. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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