低合金高强钢不预热焊接技术的研究与进展

Research and Progress of Non-preheating Welding Technique of Low Alloy High-strength Steel

低合金高强钢具有超高的强度和良好的塑性,广泛应用于船舶、航天、桥梁、电力、压力容器等领域。如何改善它的焊接性能和效率越来越成为研究重点。总结概括了近几年来对低合金高强钢的不预热焊接技术的研究状况,提出了改善低合金高强钢焊接性的方法,展望了未来不预热焊接技术的研究方向。

Low alloy high strength steel has high strength and good plasticity, which is more widely used in aerospace,ships, bridges, power, pressure vessels and other fields. How to improve the welding performance and efficiency is more and more bacoming into key point of the research. The research status of non-preheating welding technique of high-strength low alloy steel in recent years was summarized, and the methods of improving the weldability of low alloy high strength steel were put forward. The research direction of non-preheating welding technology was forecasted in the future.