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he:(焊縫符號(hào)指焊縫的形式或者以下的部分: ) ? Welding Symbol the plete information needed to convey the necessary welding information to all parties, including the welder. It contains several elements, including the Weld Symbol.(焊縫符號(hào) 需要轉(zhuǎn)換必要的焊接信息到所有部門,包含焊工。這全部信息包含許多元素,也包含焊接符號(hào)) WIT 4 51 Weld Symbols( 焊縫符號(hào)) WIT 4 52 Groove Weld Types – 8 (坡口焊縫的形式 8) ? Square( 方型) ? Scarf( 嵌接) ? V( V型) ? Bevel( 削角) ? U( U型) ? J( J型) ? FlareV( V型喇叭口) ? Flarebevel( 削角喇叭口) The above welds may be applied to one side or both sides of the joint, or in bination.( 以上焊縫可能是單邊或雙邊或組合的) WIT 4 53 Other Weld Types – 11 ( 其它的焊縫形式 11) ? Fillet( 角接) ? Plug or Slot( 塞焊或槽焊) ? Stud *( 螺柱焊) ? Spot or Projection( 點(diǎn)焊或凸焊) ? Seam( 滾焊) ? Back or Backing( 背面焊或帶墊板焊) ? Surfacing *( 表面堆焊) ? Edge( 邊緣焊) * Stud and surfacing symbols are always placed below reference line. ( *螺柱焊和表面堆焊符號(hào)總是放在參考線以下) WIT 4 54 Weld Symbols – Rules ( 焊縫符號(hào) 規(guī)則) ? Symbols with a perpendicular leg shall have the perpendicular leg drawn on the left side of the symbol. (fillet, bevelgroove, Jgroove, and flarebevelgroove)( ? The symbols for Stud and Surfacing welds shall always be drawn below the reference line.( 螺柱焊和堆焊的符號(hào)總是被放在參考線以下) WIT 4 55 Welding Symbol ( 焊接符號(hào)) WIT 4 56 Supplementary Symbols ( 附加的符號(hào)) WIT 4 57 Elements of Welding Symbols ( 焊接符號(hào)的要素) Required Elements(要求的元素) ? Reference Line always horizontal(參考線 總是水平的) ? Arrow( 箭頭) Optional Elements ( 選擇的元素) ? Multiple reference lines (多重參考線) ? Tail( 尾部) ? Weld Symbol( 焊接符號(hào)) ? Dimensions( 尺寸) ? Supplementary Symbols (附加元素符號(hào)) ? Finish( 光潔度) ? Specification, Process ( 規(guī)范,工藝) WIT 4 58 Arrow Notation( 箭頭注釋) ? Information applicable to the arrow side of the joint is placed below the reference line( 箭頭側(cè)接頭的信息放在參考線以下) ? Information applicable to the other side of a joint is placed above the reference line( 接頭另一側(cè)的信息放在參考線上方) WIT 4 59 Arrow Side Weld Symbols ( 箭頭側(cè)焊縫符號(hào)) WIT 4 60 Other Side Weld Symbols ( 另一側(cè)焊縫符號(hào)) WIT 4 61 Side Significance The Weld Symbol straddles the reference line when there is no side Significance( 當(dāng)沒有焊縫符號(hào)跨過參考線 ? Resistance Spot Weld( 電阻點(diǎn)焊) ? Resistance Seam Weld( 電阻滾焊) ? Flash Weld( 閃光焊) WIT 4 62 Break in Arrow Line ( 斷開的箭頭線) A break in the arrow line signifies that the member the arrow points to is the member receiving the edge preparation.( 箭頭線斷開表示 WIT 4 63 Combined Weld Symbols ( 組合焊縫符號(hào)) For joints requiring more than one weld type, a weld symbol shall be used to specify each weld (當(dāng)接頭需要多種焊接形式時(shí),焊接符號(hào)將用來特指每條焊縫) WIT 4 64 Multiple Arrows( 多箭頭) Two or more arrows may be used for a single reference line to denote locations where identical welds are specified.( 兩個(gè)或多個(gè)箭頭可以用于單條參考線,它特指同一焊縫的不同的位置) WIT 4 65 Multiple Reference Lines ( 多條參考線) ? Two or more reference lines may be used to indicate a sequence of operations. ( 兩條或多條參考線可以用來表示操作的順序) ? The first operation is always on the reference line nearest the arrow.(第一操作總在參考線上離箭頭最近的位置) WIT 4 66 Field Weld amp。 Weld AllAround ( 現(xiàn)場(chǎng)焊縫和周向焊縫) ? The Field Weld symbol is a solid flag, and is always located at junction of the arrow and reference line.( 現(xiàn)場(chǎng)焊縫符號(hào)是一個(gè)實(shí)心的旗子,且總位于箭頭和參考線的連接處) ? The Weld AllAround symbol is a circle and is located at junction of the arrow and reference line.( 周向焊接符號(hào)是一個(gè)圓,位于箭頭和參考線的連接處) WIT 4 67 Tail( 尾部) The Tail is used to specify welding process information or other such information needed to convey the necessary welding details.( 末端用于特指焊接工藝信息或其他需要轉(zhuǎn)換的必需的焊接細(xì)節(jié)) WIT 4 68 Welding and NDE Symbols ( 焊接和無損探傷符號(hào)) ? Welding and NDE symbols can be bined on the same reference line, or on separate multiple reference lines.( 焊接和無損檢測(cè)符號(hào)能組合在同一參考線上,或者單獨(dú)的多條參考線上) ? Combining welding and NDE symbols on multiple reference lines often clarifies the exact sequence of operations required.( 在多條參考線上的組合焊接和無損檢測(cè)符號(hào)常能澄清確切的要求操作的順序) WIT 4 69 Weld Contours amp。 Finishing ( 焊縫外型和光潔度) ? Weld surfaces can be contoured to several shapes。 convex, concave, flush, or flat.( 焊縫外型可以有多種形式:凸?fàn)?,凹狀,平或方型? ? Finishing methods are abbreviated as shown.( 光潔度方法的縮寫如圖所示) ? ‘ U? denotes contour method is ?Unspecified?( 表示外型方法的 ’ U?是未特別指出的) ? Contour symbol w/o finish symbol means aswelded WIT 4 70 Symbol Dimensions? ( 符號(hào)尺寸) ? Tolerances, if required, are to be placed in tail ( 如果要求的話,允許誤差應(yīng)放在末端) ? Welding Symbols are usually drawn without dimension units such as inches or millimeters.( 焊縫符號(hào)上常常沒有標(biāo)尺寸單位,如英寸或毫米) ? But, Welding Symbols to be used for publications or those requiring high precision should be dimensioned and have the dimensional tolerances noted within the tail.( 但,用于出版或需要高精度的焊接符號(hào)必須標(biāo)定尺寸,且將尺寸公差標(biāo)在末端) WIT 4 71 Symbol Examples( 符號(hào)例子) ? Arrow side Vgroove( 箭頭側(cè) V型坡口) ? Other side Vgroove( 另一側(cè) V型坡口) ? Both sides Vgroove( 雙側(cè) V型坡口) WIT 4 72 Symbol Examples( 符號(hào)例子) ? Back or Backing, single Jgroove, fillet( 背焊或帶襯墊的單 J坡口,角焊縫) ? Singlebevelgroove, double fillet( 單削角坡口,雙面角焊縫) WIT 4 73 Symbol Examples( 符號(hào)例子)