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- Key words: Laser remanufacturing; Temperature field; Molten pool; CCD. 关键词：激光再制造；温度场；熔池；ccd。
- Quite molten pool, little spatter and no undercut ensure workpiece be in good welding appearance. 焊接熔池平静，飞溅小，不咬边，焊缝成形美观。
- Quite molten pool,little spatter ang no undercut ensure workpiece be in good welding apparance. 焊接熔池平静，飞溅小，不咬边，焊缝成型美观。
- Shoot the molten pool by CCD,process the picture through computer,and then demarcate temperature. 为了更好的研究激光与材料表面的相互作用,需要实时检测熔池温度场。
- The dynamic change of the molten pool influences the quality of welding joint directly in TIG. TIG焊接过程中,熔池的动态变化直接影响焊接质量。
- Based on the thermodynamics analysis, the sulphurs removal mainly was occured in the molten pool. 研究表明：金属镁粉对焊缝金属的脱硫是有较明显效果的。
- The depth of molten pool directly influences the crystallization of castings,thus influence the quality of ingots in the ESR. 电渣熔铸过程中,金属熔池深度直接影响熔铸件的结晶,从而影响钢锭的质量。
- The forces applied on the molten pool at the cathode surface under the action of an ex-ternal magnetic field during vacuum arc coating are analyzed. 分析了在外加磁场作用下，真空电弧镀膜中阴极靶面液池的受力情况，导出了液滴喷溅特性受磁场影响的关系式。
- The key factors to produce post molten region are the overheating and the lat ent heat released during solidification process in upper molten pool. 影响后熔的主要因素是熔覆层和过渡区凝固过程中释放的潜热和熔覆层的过热。
- The influences of laser on plasma arc beam form,width and depth of molten pool in the high temperature alloy powder deposition were investigated. 研究了等离子激光复合熔积高温合金粉末过程中激光对等离子弧柱形态、熔积时熔深和熔宽等的影响。
- A passive vision sensing system to acquire the image of molten pool in MAG welding was set up and many typical molten pool images were obtained. 针对MAG焊特点,利用被动式熔池视觉传感系统,采集到清晰的熔池图像;
- At quasi-state stage, the depth and rad ius of laser pool have small changes, but the highest surface temperature and velocity of molten pool decease rapidly. 在凝固准稳态阶段，熔池熔深和半径变化较小，但表面最高温度、熔池流速急剧减小；凝固加速阶段则反之。
- The crystal grains are ejected to molten pool continuously under the vibrating action of bar and served as crystal nucleus of equiaxed grain during solidification. 这些晶粒在振动作用下被连续不断地弹射至溶液中，成为凝固过程中等轴晶的形核核心；
- It is shown that the longitudinal magnetic field deflects the direction of spraying andan angle will result, whose magnitude depends on the position of the molten pool. 一维横向磁场将使液池发生偏心喷溅，加剧了液滴的发射；
- Distribution of Mg in melt pool and its effects on mechanical properties of welded joint were investigated by EDX analysis, microhardness test and tensile properties test. 通过对焊缝的能谱分析、显微硬度试验和拉伸性能试验，研究了Mg元素烧损后在熔池内的分布规律及对焊后力学性能的影响。
- The gliding fracture was approved by analyzing the appearance of fracture. The result of EBW of LF2-Q235 showed that the molten pool was composed of two parts: main pool and assistant pool. LF2-Q235的电子束焊接研究结果表明,焊接时熔池分为两部分:主熔池和辅助熔池。
- By strictly clearing up weld zone, improving welding material's purity, strengthening molten pool's shield and controlling energy input etc measures, weld zone's hot crack and blowhole were prevented. 采取严格清理焊接区、高焊材纯净度、强熔池保护及控制线能量等措施消除了蒙乃尔合金焊接中的气孔和热裂纹,保证了产品焊接质量。
- Finite element simulation of temperature field, stress field, molten pool flow field and gas/powder two phase fluid field in laser cladding forming process was summarized and analysed. 综述和分析了激光熔覆成形过程中温度场、应力场、熔池流场以及气／粉两相流场等有限元模拟工作的最新研究进展。
- This paper discussed the influence of temperature on gas dissolubility and generation mechanism of air bubble in molten pool and analyzed the relationship between air bubble and electrode morphology. 摘要讨论了温度对熔池气体溶解度的影响；
