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- The steam leakage was occurred on the welding zone of the tube sheet of the austenitic stainless steel heat exchanger. 摘要在奥氏体不锈钢制再沸器的上管板与壳程筒体焊接的管板一侧发生蒸气泄漏。
- Hence the external electric field harmonizes the plastic deformation in the weld zone, and improves the plasticity of the friction welding joint. 因而, 合适的静电场可以加强摩擦焊接过程中晶界运动在协调焊合区金属塑性变形方面的作用, 提高焊接接头的塑性。
- Uniform and refined equaxial grains could be observed in welding zone, and the coarsening intermetallic compounds of 5083 are refined and spheroidized after welding. 焊道显微组织为均匀且细小的等轴晶粒，而5083中粗大的晶出物亦细化且圆钝化。
- The centre of joint is characterized by fine equiaxial grains.The flashing is by lamellar structure.A“V”shape weld zone is formed from the centre of joint to the flashing. 心部为细小的等轴组织，焊口为片状组织，从心部到焊口形成了V字形焊缝。
- 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。
- By analyzing the relation of microstructure,weld zone quality and tensile property,it is concluded that the welding techn-ological parameter of L245 steel is the main factor of the welding crack. 通过分析L245钢埋弧焊焊缝区质量、微观组织和拉伸性能关系表明,焊接工艺参数的合理制定是低合金钢L245焊管产生裂纹等缺陷的关键因素。
- After visual inspection and metallographic test,analysis and discuss the welding zone cracking reasons for 6061 and A7003 aluminum alloy thin-walled tube after TIG(argon shielded arc) welding. 通过宏观及微观检测,分析了6061铝合金管及A7003铝合金薄壁管经TIG(氩弧)焊后的焊接区开裂的原因。
- The nonuniformity of structure and mechanical properties was most critical in weld zone of welded jointthat is weakest zone in the joint. 该焊接接头中的熔合区组织和力学不均匀性最为严重，是该焊接接头最薄弱的部位。
- The blue circle oxide films on fuel rods near the welded zone by electron beam (EB) welding were formed after corrosion tests. 燃料棒电子束焊接试样腐蚀后,在近环焊缝区会出现蓝色氧化膜环现象。
- The FSW process results in different microstructures and stress distributions at different weld zones, which exhibit different corrosion behaviors correspondingly. 其工艺特性导致各焊缝微区组织和应力状况不同，从而展现出不同的腐蚀行为。
- The Norwegians live in a comparatively cold zone. 挪威人生活在比较寒冷的地区。
- The Flexing Direction of Pipeline Steel Weld Zone of Rough Crystal 管线钢焊接粗晶区的韧化方向
- VISUAL IMAGE SENSING SYSTEM FOR WELD ZONE OF PULSED GTAW 脉冲GTAW焊接区视觉图象传感系统
- Some metals weld better than others. 有些金属容易焊，有的不容易焊。
- Keywords pulsed GTAW;direct vision;weld zone;image sensing; 脉冲GTAW;直接视觉;焊接区;图象传感;
- Supplies were parachuted into the earthquake zone. 救援物资已空投到地震区。
- Some people live in Torrid Zone. 有些人生活在热带。
- On reaching welding heat, the metal surfaces are pressed together. 当金属表面达到焊接热度时就会压在一起。
- I'd like to see Europe as a nuclear-free zone. 我希望欧洲成为无核区。
- The troops detrained near the battle zone. 部队在战区附近下了火车。
