羊湖水电站压力钢管焊接质量评定

本文通过大里的试验，对压力钢管焊接接头的质量评定表明:在高海拔、低气压、低温 和严重缺氧的条件下，羊湖水电站采用焊接压力钢管的方案是科学的、经济的。 

Quality Evaluation on Welded Joints of Presure Penstocks in the Yang Lake Hydroelectric Station

Based on a large amount of experiments, this paper gives the qualityevaluatiun on welded joints of pressure penstocks in the Yang Lakehydroelectric station. It demonstrates that such a weldment can be madesuccess fully in a region of high altitude (with low temperature, lowatmospheric pressure and low oxygen content in the air), showing thatsuch a selection is reasonable and economical.