焊接符號 規格表
8種規格資料
焊接符號是在圖紙上以符號表示焊接方法、形狀和尺寸的約定。按KS B ISO 2553可準確指示各類焊縫。理解箭頭線、基準線與符號的位置關係是正確讀圖的關鍵。
坡口焊
Groove Weld · 4個尺寸
角焊
Fillet Weld · 1個尺寸
塞焊/槽焊
Plug/Slot · 2個尺寸
電阻焊
Resistance Weld · 2個尺寸
特殊
Special · 1個尺寸
輔助符號
Supplementary · 2個尺寸
表面形狀
Surface Finish · 3個尺寸
施工符號
Site Symbol · 2個尺寸
常見問題 (FAQ)
What is the difference between fillet weld and groove weld?
Fillet welds join two surfaces meeting at right angles with a triangular cross-section. Groove welds join prepared (beveled) edges with full penetration. Use groove welds for strength-critical joints; fillet welds for general structures.
What does "arrow side" and "other side" mean in weld symbols?
Symbols below the reference line (arrow side) indicate welding on the face the arrow points to. Symbols above the line (other side) indicate welding on the opposite face. Both sides shown means double (both-side) welding.