摘要
介绍了小直径管对接焊缝双壁双投影,采用角度法或偏移法椭圆成像并控制椭圆间距的两种照相方法。
Double-wall and double-projection method for butt welding of small-sized tube, using two photographic methods of angle and excursion for image formation and to control the space between ellipses, is introduced.
出处
《安徽冶金》
2004年第4期39-40,共2页
Anhui Metallurgy
关键词
小直径管
对接焊缝
双壁双投影
角度法
偏移法
椭圆成像
small-sized tube butt weld radial photography double-wall double projection formation of an eclipse image angle method excursion method
