钢焊缝的超声波检测.ppt

钢焊缝的超声波检测,Liu Jian Ping,目录Contents,目录Contents,目录Contents,目录Contents,一、关于焊缝的有关知识,为使检测者对被检焊缝有个基本的了解,以下把焊接工艺中有关的焊接方法、焊接型式、坡口型式以及焊缝中可能产生的各种缺陷作一简介: 1.焊接方法 主要有手工电弧焊、埋弧自动焊、气体保护焊和电渣焊等。 1)手工电弧焊 它是焊条与母材之间产生电弧,靠电弧的高温熔化焊条与部分母材,在两焊件(母材)之间形成熔池,熔融金属在熔池中经过冶金反应后冷却,形成焊缝,把两焊件连接起来。,Diagram,Guild Design is one of aligned company with Microsoft Ltd, and we develop and provide the design templates for Office 97, 2000, and XP.,ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.,Title Add your text,Cycle Diagram,Text,Text,Text,Text,Text,Cycle name,Add Your Text,Diagram,Text,Text,Text,Add Your Title Text Text 1 Text 2 Text 3 Text 4 Text 5,Add Your Title Text Text 1 Text 2 Text 3 Text 4 Text 5,Text,Text,Diagram,Concept,Add Your Text,Text,Text,Text,Text,Text,Text,Diagram,Diagram,Add Your Text,Add Your Text,Add Your Text,Add Your Title,Diagram,Add Your Text,Add Your Text,Add Your Text,Text,Text,Text,Diagram,Text,Text,Text,Text,Add Your Title,Diagram,Title,Add Your Text,Add Your Text,Add Your Text,Add Your Text,Add Your Text,Add Your Text,Diagram,1,ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.,2,ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.,3,ThemeGallery is a Design Digital Content & Contents mall developed by Guild Design Inc.,Diagram,Your Text,Your Text,Your Text,Your Text,Your Text,Your Text,Your Text,Your Text,2001,2002,2003,2004,Progress Diagram,Phase 1,Phase 2,Phase 3,Block Diagram,TEXT,TEXT,TEXT,TEXT,TEXT,TEXT,TEXT,TEXT,Table,3-D Pie Chart,TEXT,TEXT,TEXT,TEXT,TEXT