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一、概述为了适应大功率汽轮机承担调峰的需要,必须提高汽轮机部件的可靠性。汽轮机隔板在频繁启停和负荷急剧变化的条件下运用,不仅要保证一定的疲劳破坏强度,还必须具备足够的可靠性。由于汽轮机隔板的焊接部位极多,且形状复杂,往往难以确保焊接质量。六十年代以来,随着电子束、等离子、激光、太阳能等新的焊接能源的开发,焊接技术得到了惊人的发展,促进了焊接生产的机械化和自动化,提高了产品的质量。本文介绍电子束焊接技术在汽轮机隔板制造
First, an overview In order to meet the needs of high-power turbine peak load, the reliability of turbine components must be improved. Turbine diaphragm in the frequent start-stop and load changes under the conditions of rapid use, not only to ensure a certain degree of fatigue damage, but also must have sufficient reliability. Due to the extremely large number of welded parts of the turbine diaphragm, and the complex shape, it is often difficult to ensure the welding quality. Since the 1960s, with the development of new welding energy sources such as electron beam, plasma, laser and solar energy, the welding technology has made astonishing development, promoted the mechanization and automation of welding production and improved the product quality. This article describes the electron beam welding technology in the manufacture of turbine diaphragm