New construction method is adopted in aspects of ruling, alignment, measurement and welding so that construction quality of oil slurry nozzle can assured.
在划线、组对、测量、焊接方面采用了新的施工工艺，保证了油浆喷嘴的施工质量。
The paper introduced briefly produce quality control in pressure vessel′s shell and manhole nozzle welding, how avoided crack and found defect by ultrasonic testing after welding.
介绍了压力容器人孔接管与厚壁筒体相焊时，如何控制产品的质量，避免产生裂纹，焊后通过超声波检测及时发现缺陷。
The performance features of copper-tungsten sintered materials and operating effects of electrode and nozzle made of the materials in welding production have been introduced.
介绍了铜钨粉末烧结材料的性能特点，以及用此材料制成的电极和导电咀在焊按生产中的使用效果。
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