论文部分内容阅读
本文在讨论药皮过渡合金,熔滴和熔池阶段反应区特点及其物化条件的同时,重点对熔滴和熔池阶段合金化作用及其影响因素做了较详细的论述和分析。在研制碳钢芯高效不锈钢焊条基础上,应用电子探针、电子扫描等测试技术,就新奥102Fe高效不锈钢焊条焊接时各反应区合金化程度、金相组织、显微硬度及焊缝金属化学成分均匀性和机械性能稳定性等问题作了试验和说明。通过试验,对不同合金化方式的不锈钢焊条性能特点及其合金化机理有了进一步认识。试验表明,新奥102Fe高效不锈钢焊条由于渣系设计合理,实现了细颗粒“附壁”过渡形态,不仅具有较满意的工艺性能,较高的熔敷效率,而且熔敷金属化学成分比较均匀,机械性能也是稳定的。因此,本文为该焊条在生产上推广应用,提供了一定的实验和理论分析基础。
This article discusses the characteristics of the reaction zone and its physico-chemical conditions during the melt-skin transitional alloy, droplet and molten pool. At the same time, it focuses on the alloying effect of the droplet and the molten pool phase and its influencing factors in detail discussed and analyzed. Based on the research of high efficient stainless steel electrode with carbon steel core, the microstructure, microhardness and weld metal chemistry of each reaction zone during the welding of the new Austrian 102Fe high efficiency stainless steel electrode were studied by using electronic probe and electronic scanning. Composition uniformity and stability of mechanical properties and other issues were tested and explained. Through the test, we further understand the characteristics of the stainless steel welding electrodes and the alloying mechanism of different alloying methods. Experiments show that the new Austrian 102Fe stainless steel electrode due to the slag system designed to achieve a fine particle “Coanda” transitional morphology, not only has a more satisfactory performance, high deposition efficiency, and deposited metal chemical composition is more uniform, Mechanical properties are also stable. Therefore, this article provides some experimental and theoretical basis for the popularization and application of this electrode in the production.