不锈钢烧结网滤芯TIG焊工艺研究
Study on TIG Welding Process of Stainless Steel Sintered Mesh Filter Element
- 2023年53卷第5期 页码:95-98
DOI: 10.7512/j.issn.1001-2303.2023.05.14
扫 描 看 全 文
扫 描 看 全 文
郭雨菲,侯宗宗,赵斌.不锈钢烧结网滤芯TIG焊工艺研究[J].电焊机,2023,53(5):95-98.
GUO Yufei, HOU Zongzong, ZHAO Bin.Study on TIG Welding Process of Stainless Steel Sintered Mesh Filter Element[J].Electric Welding Machine, 2023, 53(5): 95-98.
不锈钢烧结网滤芯是液压、机械、船舶、冶金等行业自动反冲洗过滤器的关键部件,其纵向对接焊缝的焊接质量直接影响着滤芯的过滤精度和自动反清洗装置的平稳运行,是不锈钢烧结网滤芯生产过程的关键环节。采用钨极氩弧焊,使用专用焊接工装,对多层不锈钢烧结网滤芯纵向焊缝进行焊接,探寻合理的焊接工艺参数,利用光学显微镜、显微硬度仪、能谱仪分析了焊缝金属的组织性能、凝固模式和物相组成。结果表明,采用钨极氩弧焊,通过控制焊接热输入量,提高焊缝背面冷却速度等方法,可以得到成形良好、无断丝、无明显缺陷的不锈钢烧结网焊接接头,观察焊缝成形情况,确定较优的焊接电流为90~95 A,所得焊缝组织为柱状奥氏体及骨架状铁素体组织,该组织具有较优的抗裂纹扩展能力。
The stainless steel sintered mesh filter element is a key component of automatic backwash filters in hydraulic, mechanical, shipbuilding, mechanical and other industries. The welding quality of its longitudinal butt weld directly affects the filtering accuracy of the filter element and the smooth operation of the automatic backwash device. It is a key link in the production process of stainless steel sintered mesh filter elements. TIG welding and special welding tools are used to weld the longitudinal weld of multi-layer stainless steel sintered mesh filter element to find reasonable welding parameters. By optical microscope, microhardness tester and energy spectrometer, the microstructure properties, solidification mode and phase composition of the weld are analyzed as well. The results show that by controlling welding heat input and improving the cooling speed of the back of the weld, the welded joint with good shape, no broken wire and no obvious defects can be obtained by TIG welding. Observing the appearance of the weld, the optimal welding current is determined to be 90~95 A. The microstructure of the weld is columnar austenite and skeleton-like ferrite, which has excellent crack propagation resistance.
不锈钢烧结网滤芯钨极氩弧焊焊接工艺焊缝组织
stainless steel sintered mesh filter elementTIG weldingwelding processweld microstructure
杨芳. 不锈钢滤网快速制备工艺探讨[J]. 建材与装饰,2019(4):196-197.
YANG F. Rapid preparation technology of stainless steel strainer[J].Construction Materials & Decoration,2019(4):196-197.
周彦彬,徐杰.核电鼓形滤网中撑管与连接法兰焊接工艺[J].焊接技术,2022,51(10):68-72.
ZHOU Y B, XU J. Welding process of tube and connecting flange in nuclear drum strainer[J]. Welding Technology,2022,51(10):68-72.
曹建玲,韦贯举,杜红年.航天用滤网的真空电子束焊焊接工艺研究[J].焊接技术,2012,41(5):27-30.
CAO J L, WEI G J, DU H N. Study on vacuum electron beam welding technology of aerospace screen[J]. Welding Technology,2012,41(5):27-30.
王文平,张志伟,王永钢,等.过滤器组件真空电子束焊接成形控制研究[J]. 金属加工(热加工), 2016(14):75-78.
WANG W P,ZHANG Z W,WANG Y G, et al. Research on forming control of vacuum electron beam welding of filter assembly[J]. MW Metal Forming, 2016(14):75-78.
刘华荣,何建萍,王付鑫,等.不锈钢丝网对接接头的微束等离子焊研究[J]. 热加工工艺, 2016,45(17):175-177
LIU H R, HE J P, WANG F X, et al. Study on Micro-plasma Arc Welding of Stainless Steel Mesh's Butt Joint[J]. Hot Working Technology,2016,45(17):175-177.
杭争翔,张剑一,徐国建,等.不锈钢丝网筒体缝焊设备及工艺[J]. 电焊机,2017,47(2):27-30.
HANG Z X, ZHANG J Y, XU G J, et al. Equipment and process of seam welding for stainless steel wire meshes of cylinder[J].Electric Welding Machine,2017,47(2):27-30.
徐志明. 钨极氩弧焊在不锈钢薄板焊接中的应用[J].电焊机,2005,35(6):65-66+72.
XUE Z M. Application of TIG welding with stainless steel sheet[J]. Electric Welding Machine,2005,35(6):65-66+72.
崔丽, 朱学军, 栗卓新.不锈钢薄板高速钨极氩弧焊的研究[J]. 热加工工艺,2005(4):22-24.
CUI L, ZHU X J, LI Z X. Study of High Speed GTAW Process for Thin-plate Stainless Steel[J]. Hot Working Technology,2005(4):22-24.
孙玉涛, 闫晓芳,王兆申,等.氩弧焊焊接工艺在不锈钢筛网生产中的应用[J].选煤技术,2006(6):18-19.
SUN Y T, YAN X F, WANG Z S, et al. Application of Argon Arc Welding Technology in Welding Process of Stainless Steel Wire Screen Mesh[J]. Goal Preparation Technology,2006(6):18-19.
利波尔德,科特基.不锈钢焊接冶金学及焊接性[M].陈剑虹 译,北京:机械工业出版社,2008..
相关作者
相关机构