weld repair

Treats test samples with the weld heat-simulation and the aging heat-treatment, studies th brittleness in weld superheated area and the service life of repair welded exhaust valves for the diesel locomotive through metallographic analysis and property test.

本文采用焊接热模拟和时效热处理等方法处理试件，通过金相分析和性能试验，研究了内燃机车排气阀焊修后焊接过热区的脆化及其使用寿命问题。

The weld repair technology was introduced for crosshead of driven end of Φ 400mm roll. The rolling amount can reach 3.6 × 10~ 4t after the roll repaired.

介绍了Φ400mm轧辊传动端十字头磨损后焊接修补的工艺，修复后轧辊的轧制量能达到36万t。

The vision system on special-purpose robot for hydraulic turbine repair, is mainly used to distinguish the drawback on blade surface, control the robot tracking the weld seam, regulate timely the gesture of weld gun and finish the rewelding.

水轮机修复专用机器人视觉系统，主要是进行叶片表面缺陷识别及控制引导机器人跟踪焊缝，且随时调整焊枪姿态以完成补焊。

Site Repair Cracks In The Weld on Link Pipe Between Ammonia Synthesis Tower and Waste Boiler

氨合成塔与废热锅炉连接管焊缝裂纹的现场修复

Through welding characteristic analysis of No. 8 turbine blade material in Shizuishan Power Plant, particularly analyzes technique main points of blade welding, carefully introduces on-site weld repair technique plan and concrete process of turbine blade.

通过对宁夏石嘴山发电厂8机汽轮叶片材料的焊接性和焊接工艺要点的分析，详细介绍了汽轮机叶片的现场焊接修复工艺方案及具体过程。

From theoretical analysis and statistics, the radiography standard for rejecting weld defects should be link with weld safety in service and the informations of safely used welds should have feedback to the drafting process of standard in order to avoid the unreasonable repair.

通过理论分析和实例，提出将焊缝使用安全性的信息反馈到焊缝射线探伤标准的制定中去，以避免某些不恰当的返修。

The spray weld is used widely in maintenance repair of the mechanical equipment.

热喷焊在设备维修中得到了广泛的应用.

Arc strike marks on base metal outside the weld joint should be avoided but if present should be treated as defects requiring removal or repair.

应防止在焊接接头之外的母材上产生弧击痕迹，但是如果出现了，就应按照焊接缺陷来进行处理，需要清除或补焊。（请指正）