CAJ | 학술논문

为解决连续化生产中钽条焊接的技术难题，在惰性气体的保护下采用电容储能式预热闪光对焊，对轧制后的4 mm×4 mm钽条进行焊接试验研究。利用金相显微镜、扫描电镜和力学性能检测设备等分析检测手段，对不同焊接顶锻力作用下的焊接区（包括热影响区）的显微组织、晶粒和晶界微区成分、硬度以及焊接区拉伸强度等进行了测试。研究表明，采用合适的闪光对焊工艺可以实现大尺寸钽条的对接，焊缝组织致密，接头具有较高的结合强度，对于大尺寸钽条无头轧制与连续拉拔技术的发展具有一定的使用价值。
위해결련속화생산중단조한접적기술난제，재타성기체적보호하채용전용저능식예열섬광대한，대알제후적4 mm×4 mm단조진행한접시험연구。이용금상현미경、소묘전경화역학성능검측설비등분석검측수단，대불동한접정단력작용하적한접구（포괄열영향구）적현미조직、정립화정계미구성분、경도이급한접구랍신강도등진행료측시。연구표명，채용합괄적섬광대한공예가이실현대척촌단조적대접，한봉조직치밀，접두구유교고적결합강도，대우대척촌단조무두알제여련속랍발기술적발전구유일정적사용개치。
To solve the technical problems of tantalum strip welding during continuous production,the welding experiments of rolled 4 mm × 4 mm tantalum strips were conducted using capacitor discharge preheating flash butt welding under inert gas protection. Using optical microscopy,scanning electron microscope and mechanical properties testing equipment, the microstructure, grains and grain boundary compositions, hardness and tensile strength of the welding zones( including heat?affected zone) under different forging forces were tested. The bonding of large?sized tantalum butts can be achieved using appropriate flash butt welding process, with dense welding microstructure and high bonding strength. It helps tothe development ofendless rolling and continuous drawing of large?sized tantalum strips.