1、WIT 4- 1 Module 4Weld Joint Geometry(第第4單元單元 焊接接頭幾何形狀）焊接接頭幾何形狀）Welding and NDE Symbols 焊接和無損檢測符號）焊接和無損檢測符號） WIT 4- 2 ANSI/AWS A3.0 - 94Standard Welding Terms and Definitions（標(biāo)準(zhǔn)的焊接術(shù)標(biāo)準(zhǔn)的焊接術(shù)語和定義）語和定義）WIT 4- 3 Introduction-1 of 2(簡介簡介-1/2）lThe geometry of joints and welds must be clearly stated and under

2、stood by all parties involved with fabrication（接頭和焊縫的幾何形狀必須清楚的說接頭和焊縫的幾何形狀必須清楚的說明，且應(yīng)讓所有參與制造的部門理解）明，且應(yīng)讓所有參與制造的部門理解）lTerminology used per A3.0 and A2.4（使用的術(shù)語使用的術(shù)語參見參見A3.0和和A2.4）lDont use slang terms（禁用俚語）禁用俚語）lWelding symbols are a shorthand method for clearly stating exactly what welding is to be done

3、 and where（焊接符號是一種速記方法，它清楚的說焊接符號是一種速記方法，它清楚的說明是什么焊縫，在哪焊。）明是什么焊縫，在哪焊。）WIT 4- 4 Introduction - 2 of 2 (簡介簡介-2/2） lJoint and Weld geometry per A3.0-94（接頭和焊縫幾何接頭和焊縫幾何形狀按照形狀按照A3.0-94來定義）來定義）lClassroom discussion on A3.0（課堂討論課堂討論A3.0）lWelding Symbols per A2.4-98（焊接符號按照焊接符號按照A2.4-98）lClassroom discussion o

4、n A2.4-98（課堂討論課堂討論A2.4-98）lWIT Module 4 - additional Study Guide（WIT第四單第四單元元-附加的學(xué)習(xí)指導(dǎo)）附加的學(xué)習(xí)指導(dǎo)）WIT 4- 5 Weld or Joint Geometry & Terms(焊縫或接頭形狀和術(shù)語）焊縫或接頭形狀和術(shù)語）lImperative to know the difference between a joint and a weld and use terms properly （必須知道接頭和焊縫的差異，并能正確使用）必須知道接頭和焊縫的差異，并能正確使用）lStandard terms

5、 must be used when dealing with weld joint and weld geometry to avoid errors in communication（為了避免溝通錯誤，當(dāng)涉及到焊為了避免溝通錯誤，當(dāng)涉及到焊縫接頭和焊縫幾何形狀時，必須使用標(biāo)準(zhǔn)術(shù)語）縫接頭和焊縫幾何形狀時，必須使用標(biāo)準(zhǔn)術(shù)語）WIT 4- 6 5 Basic Joint TypesRefer to A3.0-94, Fig 1, page 41 （參考參考A3.0-94，圖圖1，第，第41頁）頁）lButt（對接）對接）lCorner（角接）角接）lT-Joint（T型接頭）型接頭）lLap（

6、搭接接頭）搭接接頭）lEdge（端接接頭）端接接頭）WIT 4- 7 Butt Joint（對接）對接） A Joint between 2 members aligned approximately in the same plane（連接兩個幾乎在同一平面內(nèi)對準(zhǔn)的的工件之連接兩個幾乎在同一平面內(nèi)對準(zhǔn)的的工件之間的接頭）相對的兩端進行焊接間的接頭）相對的兩端進行焊接WIT 4- 8 Butt Joint - Applicable Welds （對接接頭對接接頭-可適用的焊縫）可適用的焊縫）lBevel-groove（單邊單邊V型坡型坡口焊縫）口焊縫）lFlare-bevel-groove（單

7、邊單邊喇叭型坡口焊縫）喇叭型坡口焊縫）lFlare-v-groove（雙邊喇叭型坡雙邊喇叭型坡口焊縫口焊縫/V形坡口喇叭型焊縫）形坡口喇叭型焊縫）lJ-groove（J型坡口焊縫）型坡口焊縫）lSquare-groove（I (方方)型坡型坡口焊縫）口焊縫）lU-groove（U型坡口型坡口對接焊縫）對接焊縫）lV-groove（V型坡口型坡口焊縫）焊縫）lEdge-flange（卷邊端卷邊端接接頭焊縫）接接頭焊縫）lBraze（釬焊）釬焊）WIT 4- 9 Corner Joint A Joint between 2 members located approximately at righ

8、t angles to each other in the form of an L（兩工件接近垂兩工件接近垂直，成直，成L型的連接）型的連接）WIT 4- 10 Corner Joint - Applicable Welds （角接角接-適用的焊縫）適用的焊縫）lFillet（角焊縫）角焊縫）lBevel-groove (單邊單邊V型坡口焊型坡口焊縫）縫）lFlare-bevel-groove（單邊喇叭單邊喇叭形焊縫）形焊縫）lFlare-v-groove（雙邊喇叭型坡雙邊喇叭型坡口焊縫）口焊縫）lJ-groove（J型坡口焊縫）型坡口焊縫）lSquare-groove (I方方型坡口焊縫型

9、坡口焊縫）lU-groove（U型坡口焊縫）型坡口焊縫）lV-groove（V型坡口型坡口焊縫）焊縫）lPlug（塞焊）塞焊）lSlot（槽焊）槽焊）lSpot（點焊）點焊）lSeam（滾滾縫縫焊焊）lProjection（凸焊）凸焊）lBraze（釬焊）釬焊）WIT 4- 11 T-Joint A Joint between 2 members located at approximately right angles to each other in the form of a T（兩兩工件接近垂直，工件接近垂直，成成T型的連接）型的連接）WIT 4- 12 T Joint - Appli

10、cable Welds （T型接頭型接頭-可適用的焊縫）可適用的焊縫）lFillet（角焊縫）角焊縫）lBevel-groove（單邊單邊V型坡型坡口焊縫）口焊縫）lFlare-bevel-groove（單邊單邊喇叭型焊縫）喇叭型焊縫）lJ-groove（J型坡口焊縫）型坡口焊縫）lSquare-groove（方型坡口方型坡口焊縫）焊縫）lPlug（塞焊）塞焊）lSlot（槽焊）槽焊）lSpot（點焊）點焊）lSeam（滾焊）滾焊）lProjection（凸凸焊）焊）lBraze（釬焊）釬焊）WIT 4- 13 Lap Joint(搭接搭接) A Joint between 2 overlap

11、ping members in parallel planes （兩平行工件相互兩平行工件相互重疊形成的接頭）重疊形成的接頭）WIT 4- 14 Lap Joint - Applicable Welds （搭接搭接-可適用焊縫）可適用焊縫）lFillet（角焊縫）角焊縫）lBevel-groove（單邊單邊V型坡口焊縫）型坡口焊縫）lFlare-bevel-groove（單邊喇叭型焊縫）單邊喇叭型焊縫）lJ-groove（J型坡口焊型坡口焊縫）縫）lPlug（塞焊）塞焊）lSlot（槽焊）槽焊）lSpot（點焊）點焊）lSeam（滾焊）滾焊）lProjection （凸焊）凸焊）lBraze（

12、釬焊）釬焊）WIT 4- 15 Edge Joint（端接接頭）端接接頭） A Joint between the edges of 2 or more parallel, or nearly parallel, members （兩個或多個平行或兩個或多個平行或接近平行的工件的端接近平行的工件的端部連接）部連接）WIT 4- 16 Edge Joint - Applicable Welds （端接接頭端接接頭-可適用的焊縫）可適用的焊縫）lBevel-groove（單邊單邊V型型坡口焊縫）坡口焊縫）lFlare-bevel-groove （單單邊喇叭型焊縫）邊喇叭型焊縫）lFlare-v-g

13、roove（雙邊喇雙邊喇叭型坡口焊縫）叭型坡口焊縫）lJ-groove（J型坡口焊縫）型坡口焊縫）lSquare-groove（方型坡方型坡口焊縫）口焊縫）lU-groove（U型坡型坡口焊縫）口焊縫）lV-groove（V型坡型坡口焊縫）口焊縫）lEdge（端接焊縫端接焊縫）lSeam（滾焊）滾焊）WIT 4- 17 Joint Nomenclature （接頭專門用語）接頭專門用語）lJoint root（接頭的根部接頭的根部）lGroove face（坡口面）坡口面）lRoot edge（根部棱邊）根部棱邊）lRoot face（鈍邊）鈍邊）lBevel angle（單邊角度單邊角度）l

14、Depth of bevel（單邊單邊深度）深度）lGroove angle（坡口角坡口角度）度）lGroove radius（坡口半徑）坡口半徑）lRoot opening（根部間隙）根部間隙）lEdge shapes（端部形狀）端部形狀） Square（方型）方型） single or double bevel（單或雙削單或雙削邊）邊） single or double J（單或雙單或雙J型）型） Round（圓型）圓型）Refer to A3.0-94, Figs 4, 5, 6, 7, pages 44 47 （參參見見A30-94，圖圖4，5，6，7，第，第44-47頁）頁）WIT

15、4- 18 Figure 4 - Joint Root （圖圖4-接頭接頭根部）根部）WIT 4- 19 Figure 5 - （圖圖5-）Groove Face（坡口面）坡口面）Root Edge（根部棱邊）根部棱邊）Root Face （鈍邊）鈍邊）WIT 4- 20 Figure 6 -（圖圖6-）Bevel Angle （單邊坡口角度）單邊坡口角度）Bevel Depth （坡口深度）坡口深度）Groove Angle （坡口角度）坡口角度）Groove Radius （坡口半徑）坡口半徑）Root Opening （根部間隙）根部間隙）WIT 4- 21 Figure 7 - Edg

16、e Shapes （圖圖7-端部形狀）端部形狀）Square（方型，直邊）方型，直邊）Single Bevel（單邊單邊V型）型）Double Bevel（雙邊雙邊V型）型）Single J（單單J型型）Double J（雙雙J型型）Flange（卷邊）卷邊）Round（圓型）圓型）WIT 4- 22 Joint Geometry - Key Learnings （接頭幾何學(xué)接頭幾何學(xué)-關(guān)鍵點）關(guān)鍵點）Refer to A3.0-94, Figures 4, 5, 6, pages 44 46 （參見參見A3.0-94，圖圖4，5，6，第，第44-46頁）頁）lA joint root can

17、 be linear in nature, or an area (接頭根部可能是實際的線狀，或者一個區(qū)域）接頭根部可能是實際的線狀，或者一個區(qū)域）lA surface can be both a Root face & a Groove face（表面可以是鈍邊和坡口面）表面可以是鈍邊和坡口面）lAn angle can be both a Bevel angle and a Groove angle（角度可以是單邊坡口角度和坡口角度）角度可以是單邊坡口角度和坡口角度）WIT 4- 23 Weld Joints（焊接接頭）焊接接頭）Refer to A3.0-94, Figs 8,

18、9, 10, 14, 15（參見參見A3.0-94，圖圖8,9,10,14,15）lSingle groove - p 48(單面坡口單面坡口-48頁）頁）lDouble-groove -p 49（雙面坡口雙面坡口-49頁）頁）lFlanged Joints - p 50 （卷邊接頭）卷邊接頭）lSeam and Spot - p 53（滾焊和點焊滾焊和點焊-53頁）頁）lVarious - p 54（其它其它-54頁）頁）WIT 4- 24 Fig 8-Single Groove Welds（圖圖8-單面坡口焊縫）單面坡口焊縫）Single Square（單面方型）單面方型）Single B

19、evel（單面坡口）單面坡口）Single V（單單V）Single J（單單J）Single U（單單U）Single Flare Bevel（單面單邊喇叭單面單邊喇叭口）口）Single Flare V（單面單面V型喇叭口）型喇叭口）WIT 4- 25 Fig 9-Double Groove Welds（雙面坡口焊縫）雙面坡口焊縫）Double Square（雙面方型）雙面方型）Double Bevel（雙面削角）雙面削角）Double V（雙面雙面V型）型）Double J（雙雙J面型）面型）Double U（雙雙U面型）面型）Double Flare Bevel（雙面單邊喇叭口雙面單邊

20、喇叭口）Double Flare V（雙面雙面V型喇叭口）型喇叭口）WIT 4- 26 Fig 10 - Flanged WeldsEdge - Flanged ButtEdge - Melt ThroughEdge - Flanged CornerSquare, Flare VRSW in Flanged CornerFillet, Flare-Bevel in TWIT 4- 27 Fig 14 -Seam, Spot Welds（滾焊，點焊）滾焊，點焊）Arc Seam Weld 電弧縫焊電弧縫焊EB Seam Weld（滾焊）滾焊）RSW Seam Weld（滾焊）滾焊）RSW Spo

21、t Welds（點焊）點焊）Arc Spot Welds（弧點焊）弧點焊）WIT 4- 28 Fig 15 - Various Welds （其他的焊縫）其他的焊縫）Upset Weld 電阻對焊電阻對焊Flash Weld（閃光焊）閃光焊）Surfacing Weld 堆焊堆焊Slot Welds（槽焊）槽焊）Plug Welds（塞焊）塞焊）Fillet Welds（角焊縫）角焊縫）WIT 4- 29 Welding Position （焊接位置）焊接位置）Refer to A3.0-94, Figs 16 - 21, pages 55 - 64（參見參見A3.0-94，圖圖16-21，第

22、，第55-64頁）頁）lReview position diagrams & tables for groove and fillet welds in plate and pipe - pages 55-57 (審核板和管的坡口及角焊縫的位置圖表審核板和管的坡口及角焊縫的位置圖表-第第55-57頁）頁）lReview welding test positions for groove and fillet welds on plate and pipe - pages 58-63（審核板和管的審核板和管的坡口及角焊縫的焊接位置坡口及角焊縫的焊接位置-第第58-63頁）頁）lNote

23、error in Fig 19D, page 61lReview Torch Position in Fig 21, page 64（審核圖審核圖21中中的火焰位置）的火焰位置）WIT 4- 30 Welding Beads, Sequences 焊道，順序焊道，順序Refer to A3.0-94, Figs 22 -23, pages 65 67 （參見參見A3.0-94，圖圖22-23，第，第65-67頁）頁）lStringer bead（直焊道）直焊道）lWeave bead（擺動焊道）擺動焊道）lBackstep sequence（分段退焊順序）分段退焊順序）lBlock seque

24、nce （分段多層焊）分段多層焊）lCascade sequence（階梯形多層焊）階梯形多層焊）lLayers vs beads（層與道）層與道）WIT 4- 31 Parts Of A Weld （焊縫的要素）焊縫的要素）Refer to A3.0-94, Fig 24,lToe（焊趾）焊趾）lFace（表面）表面）lFace reinforcement（表面余表面余高）高）lRoot reinforcement（根部余根部余高）高）lRoot surface（根部表面）根部表面）lWeld Root（焊縫根部）焊縫根部）pages 68 - 70lBead（焊道）焊道）lBack wel

25、d（背面焊縫）背面焊縫）lBacking weld（封底焊封底焊縫）縫）lSpacer（墊塊）墊塊）lHeat-Affected Zone (HAZ)（熱影響區(qū)）熱影響區(qū)）WIT 4- 32 Fig 24 - Parts of Welds（圖圖24-焊縫的要素）焊縫的要素）Weld Face（焊縫表面）焊縫表面）Weld Toe（焊趾）焊趾）Face Reinforcement（表面加表面加強高）強高）Root Reinforcement（根部加根部加強高）強高）Weld Root（焊縫根部）焊縫根部）Back Weld（背面焊縫）背面焊縫）Backing Weld（打底焊縫）打底焊縫）WIT

26、 4- 33 Fig 24 - Parts of Welds（圖圖24-焊縫的要素）焊縫的要素）Weld Root（焊縫根部）焊縫根部）Leg, Face, Toe（焊角，焊焊角，焊面，焊趾）面，焊趾）Spacer（墊塊）墊塊）Weld Metal（焊縫金屬）焊縫金屬）Heat Affected Zone（熱熱影響區(qū)）影響區(qū)）WIT 4- 34 Fig 24 - Parts of Welds（圖圖24-焊縫的要素）焊縫的要素）Weld Root（焊縫根部焊縫根部）Weld Bead（焊道）焊道）Dilution Percent（稀稀釋率）釋率）WIT 4- 35 Weld Sizes &

27、; Terms （焊接尺寸和術(shù)語）焊接尺寸和術(shù)語）Convex Fillet（凸?fàn)罱呛缚p凸?fàn)罱呛缚p）lLeg, size equal（焊角尺焊角尺寸，焊縫尺寸等同）寸，焊縫尺寸等同）lConvexity(焊縫凸度）焊縫凸度）lActual throat（實際厚度實際厚度）lEffective throat（有效厚有效厚度）度）lTheoretical throat（理論理論厚度）厚度）Concave Fillet （凹狀角焊縫）凹狀角焊縫）lLeg（焊角尺寸）焊角尺寸）lSize (less than leg length)（焊縫尺焊縫尺寸，小于焊角長度）寸，小于焊角長度）lConcavity

28、（焊縫凹度）焊縫凹度）lActual, Effective throats equal（實實際厚度于有效厚度等同）際厚度于有效厚度等同）lTheoretical throat（理論厚度）理論厚度）Refer to A3.0, Fig 25, pages 71 - 72WIT 4- 36 Convex Fillet Weld（凸?fàn)罱呛缚p）凸?fàn)罱呛缚p）WIT 4- 37 Concave Fillet Weld （凹面角焊縫）凹面角焊縫）WIT 4- 38 Joint & Root Penetration （接頭和根部熔透）接頭和根部熔透）Note Incomplete Joint Pene

29、tration dimension （標(biāo)注標(biāo)注非完全熔透焊縫尺寸）非完全熔透焊縫尺寸）WIT 4- 39 Incomplete Joint Penetration（未焊透接頭）未焊透接頭）Refer to A3.0, Fig 26 pages 75 - 76lTerm used only in reference to groove welds（本術(shù)語僅限于坡口焊縫）本術(shù)語僅限于坡口焊縫）lIf only Partial Penetration is intended, it is incorrect to refer to the weld as Incomplete Joint Penet

30、rationWIT 4- 40 Incomplete Joint Penetration（非完全熔透接頭）非完全熔透接頭）(Or Partial Joint Penetration if intended) （或者是部分熔透接頭）或者是部分熔透接頭）E total can never be base metal thickness （總數(shù)總數(shù)E不可能大于母材厚度不可能大于母材厚度）WIT 4- 41 Incomplete Joint Penetration Error（未焊透接頭錯誤）未焊透接頭錯誤）Fig 26 (c) - page 75 - Incomplete Joint Penetra

31、tion reference dimension is in error on sketch（未焊透接頭圖上的參考尺寸是錯誤的未焊透接頭圖上的參考尺寸是錯誤的）Error !（錯誤）錯誤）Correct DimensionWIT 4- 42 Melt-through, Root Surfaces（熔透，根部表面）熔透，根部表面）Refer to A3.0-94, Fig 27, page 77 lMelt-through（熔透）熔透）lConvex root surface（凸?fàn)罡勘砻妫┩範(fàn)罡勘砻妫﹍Concave root surface（凹狀根部表面）凹狀根部表面） Slang ter

32、m is suck back - Dont Use（俚俚語里用語里用suck back-不要使用）不要使用）WIT 4- 43 Incomplete Fusion(未熔合）未熔合）Refer to A3.0-94, Fig 29, page 79lUsed in reference to both groove and fillet welds（用于坡口焊縫和角焊縫）用于坡口焊縫和角焊縫）lSlang term often misused is cold lap（俚語里常被誤用為俚語里常被誤用為cold lap)WIT 4- 44 Incomplete Fusion未融合未融合-1/2 WIT

33、 4- 45 Incomplete Fusion - 2 of 2 （未熔合未熔合-2/2）WIT 4- 46 Fusion Weld Terms（熔合焊縫術(shù)語）熔合焊縫術(shù)語）Refer to A3.0, Figure 30, page 80（參見參見A3.0，圖圖30，第，第80頁）頁）WIT 4- 47 Weld Discontinuities （焊縫的不連續(xù)性）焊縫的不連續(xù)性）Refer to A3.0-94, Fig 32, 33, pages 82 83 （參見參見A3.0-94，圖圖32,33,第第82-83頁）頁）lCracks - see nomenclature in Fig

34、 33 (裂紋裂紋-見圖見圖33的專門術(shù)語）的專門術(shù)語）lUndercut（咬邊）咬邊）lOverlap（焊瘤）焊瘤）lUnderfill（未焊滿）未焊滿）WIT 4- 48 ANSI/AWS A2.4-98Standard Symbols for Welding, Brazing, and Nondestructive Examination （焊接，釬焊及無損焊接，釬焊及無損檢測的標(biāo)準(zhǔn)符號）檢測的標(biāo)準(zhǔn)符號）WIT 4- 49 Welding Symbols Introduction （焊接符號焊接符號-簡介）簡介）Refer to A2.4-98（參見參見A24-98）lA shortha

35、nd method of conveying welding information（傳遞焊接信息的一種速記法）傳遞焊接信息的一種速記法）lAWS system used all over the world （全世界都使全世界都使用的用的AWS系統(tǒng)）系統(tǒng)）lModified as necessary to reflect needs of industries（應(yīng)應(yīng)工業(yè)的需要進行修改）工業(yè)的需要進行修改）lVery simple, but a very powerful system for conveying information（很簡單，但能傳遞很多有用的信息）很簡單，但能傳遞很多有用

36、的信息）WIT 4- 50 Weld Symbol vs Welding Symbol （焊縫符號與焊接符號）焊縫符號與焊接符號）lA Weld Symbol indicates the type of Weld, and may be a part of the:(焊縫符號表示了焊縫的形式，它也可能是焊焊縫符號表示了焊縫的形式，它也可能是焊接符號的一部分接符號的一部分)lWelding Symbol - the complete information needed to convey the necessary welding information to all parties, inc

37、luding the welder. It contains several elements, including the Weld Symbol.(焊接符號焊接符號-需要轉(zhuǎn)換必要的焊需要轉(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，也包含焊縫符號），也包含焊縫符號）WIT 4- 51 Weld Symbols（焊縫符號）焊縫符號） WIT 4- 52 Groove Weld Types 8 (坡口焊縫的形式坡口焊縫的形式-8）lSquare（方型）方型）lScarf（斜斜接）接）lV（V型）型）lBevel（單邊）單邊）l

38、U（U型）型）lJ（J型）型）lFlare-V（V型喇叭口）型喇叭口）lFlare-bevel（單邊喇叭口）單邊喇叭口）The above welds may be applied to one side or both sides of the joint, or in combination.以上焊縫可能是單面焊、雙面焊或兩者的組合以上焊縫可能是單面焊、雙面焊或兩者的組合WIT 4- 53 Other Weld Types 11 （其它的焊縫形式其它的焊縫形式-11）lFillet（角接）角接）lPlug or Slot（塞焊或槽焊塞焊或槽焊）lStud *（螺柱焊）螺柱焊）lSpot o

39、r Projection（點焊點焊或凸焊）或凸焊）lSeam（滾焊）滾焊）lBack or Backing（背面背面焊或封底焊）焊或封底焊）lSurfacing *（表面堆焊）表面堆焊）lEdge（端部）端部）* Stud and surfacing symbols are always placed below reference line.（*螺柱焊和表面堆焊符號總是放在參考線以下）螺柱焊和表面堆焊符號總是放在參考線以下）WIT 4- 54 Welding Symbols Rules （焊接符號焊接符號-規(guī)則）規(guī)則）lSymbols with a perpendicular leg sha

40、ll have the perpendicular leg drawn on the left side of the symbol. (fillet, bevel-groove, J-groove, and flare-bevel-groove)lThe symbols for Stud and Surfacing welds shall always be drawn below the reference line.（螺柱焊和堆焊的符號總是被放在參考線螺柱焊和堆焊的符號總是被放在參考線以下）以下）WIT 4- 55 Welding Symbol （焊接符號）焊接符號）WIT 4- 56

41、Supplementary Symbols （附加的符號）附加的符號）WIT 4- 57 Elements of Welding Symbols （焊接符號的要素）焊接符號的要素）Required Elements（要求的元素）要求的元素）lReference Line - always horizontal（參考線參考線-總是水平的）總是水平的）lArrow（箭頭）箭頭）Optional Elements （選擇的元選擇的元素）素）lMultiple reference lines （多重參考線）多重參考線）lTail（尾部）尾部）lWeld Symbol（焊縫符號）焊縫符號）lDimens

42、ions（尺寸）尺寸）lSupplementary Symbols （附加元素符號）附加元素符號）lFinish（成型）成型）lSpecification, Process （規(guī)范規(guī)范，工藝），工藝）WIT 4- 58 Arrow Notation（箭頭注釋）箭頭注釋）lInformation applicable to the arrow side of the joint is placed below the reference line（箭頭側(cè)接頭的信息放在箭頭側(cè)接頭的信息放在參考線以下）參考線以下）lInformation applicable to the other side o

43、f a joint is placed above the reference line（接頭另一側(cè)的信息放在接頭另一側(cè)的信息放在參考線上方）參考線上方）WIT 4- 59 Arrow Side Weld Symbols （箭頭側(cè)焊縫符號）箭頭側(cè)焊縫符號）WIT 4- 60 Other Side Weld Symbols （另一側(cè)焊縫符號）另一側(cè)焊縫符號）WIT 4- 61 Side Significance The Weld Symbol straddles the reference line when there is no side Significance（當(dāng)焊縫符號跨當(dāng)焊縫符號跨在

44、參考線上時表示在哪邊沒有意義在參考線上時表示在哪邊沒有意義lResistance Spot Weld（電阻點焊電阻點焊）lResistance Seam Weld（電阻滾電阻滾焊）焊）lFlash Weld（閃光焊）閃光焊）WIT 4- 62 Break in Arrow Line （拐彎的箭頭線）拐彎的箭頭線） A break in the arrow line signifies that the member the arrow points to is the member receiving the edge preparation.（箭箭頭線指向的一側(cè)表示要頭線指向的一側(cè)表示要開坡

45、口）開坡口）WIT 4- 63 Combined Weld Symbols （組合焊縫符號）組合焊縫符號） 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，焊接符號將用來特指每條焊縫）WIT 4- 64 Multiple Arrows（多箭頭）多箭頭） Two or more arrows may be used for a single reference line to denote locations where ide

46、ntical welds are specified.（兩個或兩個或多個箭頭可以用于單條多個箭頭可以用于單條參考線，它特指不同的參考線，它特指不同的位置使用相同的焊縫）位置使用相同的焊縫）WIT 4- 65 Multiple Reference Lines （多條參考線）多條參考線）lTwo or more reference lines may be used to indicate a sequence of operations. （兩條或多兩條或多條參考線可以用來表示操條參考線可以用來表示操作的順序）作的順序）lThe first operation is always on the

47、reference line nearest the arrow.（第一操作總在參考線上離第一操作總在參考線上離箭頭最近的位置）箭頭最近的位置）WIT 4- 66 Field Weld & Weld All-Around （現(xiàn)場焊縫和周向焊縫）現(xiàn)場焊縫和周向焊縫）lThe Field Weld symbol is a solid flag, and is always located at junction of the arrow and reference line.（現(xiàn)現(xiàn)場焊縫符號是一個實心的旗子，場焊縫符號是一個實心的旗子，且總位于箭頭和參考線的連接處且總位于箭頭和參考線的連接

48、處）lThe Weld All-Around symbol is a circle and is located at junction of the arrow and reference line.（周向焊接符號周向焊接符號是一個圓，位于箭頭和參考線的是一個圓，位于箭頭和參考線的連接處）連接處）WIT 4- 67 Tail（尾部）尾部） The Tail is used to specify welding process information or other such information needed to convey the necessary welding details

49、.（末端用于特指末端用于特指焊接工藝信息或其他需焊接工藝信息或其他需要轉(zhuǎn)換的必需的焊接細(xì)要轉(zhuǎn)換的必需的焊接細(xì)節(jié)）節(jié)）WIT 4- 68 Welding and NDE Symbols（焊接和無損探傷符號）焊接和無損探傷符號）lWelding and NDE symbols can be combined on the same reference line, or on separate multiple reference lines.（焊接和無損檢測符焊接和無損檢測符號能組合在同一參考線上，或者單獨號能組合在同一參考線上，或者單獨的多條參考線上）的多條參考線上）lCombining wel

50、ding and NDE symbols on multiple reference lines often clarifies the exact sequence of operations required.（在多條參考線在多條參考線上的組合焊接和無損檢測符號常能澄上的組合焊接和無損檢測符號常能澄清確切的要求操作的順序）清確切的要求操作的順序）WIT 4- 69 Weld Contours & Finishing（焊縫外型和處理）焊縫外型和處理）lWeld surfaces can be contoured to several shapes; convex, concave,

51、flush, or flat.（焊縫外型可以有多種形式：凸焊縫外型可以有多種形式：凸?fàn)睿紶?，平或方型）狀，凹狀，平或方型）lFinishing methods are abbreviated as shown.（光潔光潔度方法的縮寫如圖所示）度方法的縮寫如圖所示）lU denotes contour method is Unspecified（表示外型方表示外型方法的法的U是未特別指出的）是未特別指出的）lContour symbol w/o finish symbol means as-weldedWIT 4- 70 Symbol Dimensions? （符號尺寸）符號尺寸）lToler

52、ances, if required, are to be placed in tail （如果如果要求的話，允許誤差應(yīng)放在末端）要求的話，允許誤差應(yīng)放在末端）lWelding Symbols are usually drawn without dimension units such as inches or millimeters.（焊縫符號上常常沒焊縫符號上常常沒有標(biāo)尺寸單位，如英寸或毫米）有標(biāo)尺寸單位，如英寸或毫米）lBut, Welding Symbols to be used for publications or those requiring high precision sh

53、ould 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必須標(biāo)定尺但，用于出版或需要高精度的焊接符號必須標(biāo)定尺寸，且將尺寸公差標(biāo)在末端）寸，且將尺寸公差標(biāo)在末端）WIT 4- 71 Symbol Examples（符號例子）符號例子）lArrow side - V-groove（箭頭側(cè)箭頭側(cè)-V型坡口）型坡口）lOther side - V-groove（另一側(cè)另一側(cè)-V型坡口）型坡口）lBoth sides - V-groove（雙側(cè)雙側(cè)-V型坡口）型坡口）

54、WIT 4- 72 Symbol Examples（符號例子）符號例子）lBack or Backing, single J-groove, fillet（背焊或封底的單面背焊或封底的單面J型坡口，角焊縫）型坡口，角焊縫）lSingle-bevel-groove, double fillet（單邊單邊V型坡口，雙面角焊縫）型坡口，雙面角焊縫）WIT 4- 73 Symbol Examples（符號例子）符號例子）lWeld all-around symbol is a very useful symbol（周向焊縫符號是很有用的周向焊縫符號是很有用的符號）符號）lMulti-plane wel

55、d requirements are very simple to sketch using symbol（多平面焊縫要求多平面焊縫要求用符號是很簡單畫的）用符號是很簡單畫的）WIT 4- 74 Symbol Examples（符號例子）符號例子）lSquare-groove butt with melt-through（方坡口對方坡口對接且熔透）接且熔透）lEdge weld on flanged butt with melt-through（卷邊對接中的端接焊縫卷邊對接中的端接焊縫并且熔透）并且熔透）lEdge weld on flanged corner joint with melt-

56、through（卷邊角接接頭卷邊角接接頭中的端接焊縫要熔透）中的端接焊縫要熔透）WIT 4- 75 Groove Weld Dimensions - 1 of 9 （坡口焊縫尺寸坡口焊縫尺寸-1/9）lDepth of Bevel, S, and Size of Weld, (E) placed to the left of the symbol（坡口深度坡口深度S和焊縫和焊縫尺寸尺寸E置于焊縫符號的左邊）置于焊縫符號的左邊）1/4 inch bevel with a 3/8 inch weld(1/4” 的坡口和的坡口和3/8“的焊縫的焊縫) (No dimensions means com

57、plete penetration)(不標(biāo)明不標(biāo)明尺寸表示全熔透尺寸表示全熔透)WIT 4- 76 Groove Weld Dimensions - 2 of 9(坡口焊縫尺寸坡口焊縫尺寸 - 2/9) Refer to A2.4, Fig 15, pg 31(見第見第31頁頁,圖圖15, A2.4) Examples of Groove Weld Bevel & Weld Dimensions( 坡口及焊縫尺坡口及焊縫尺寸示例寸示例)l No dimensions means complete penetration )(不標(biāo)不標(biāo)明尺寸表示全熔透明尺寸表示全熔透)WIT 4- 77

58、Groove Weld Dimensions -3 of 9 ( 坡口焊縫尺寸 - 3/9)lThe Root Opening is placed within the weld symbol or just outside, and only on one side of the reference line(根部間根部間隙標(biāo)注于焊接符號內(nèi)側(cè)或隙標(biāo)注于焊接符號內(nèi)側(cè)或旁邊旁邊,并僅限于參考線的一并僅限于參考線的一側(cè)側(cè))lInches or mm per shop practice(依車間習(xí)慣依車間習(xí)慣,單位單位為英寸或毫米為英寸或毫米)WIT 4- 78 Groove Weld Dimensi

59、ons - 4 of 9 ( 坡口焊縫尺寸 - 4/9)lGroove Angle is placed just outside the weld symbol(坡坡口角度標(biāo)注于焊接符口角度標(biāo)注于焊接符號外側(cè)號外側(cè))WIT 4- 79 Groove Weld Dimensions - 5 of 9 ( 坡口焊縫尺寸 - 5/9) The length of the weld shall be placed to the right of the weld symbol. No dimension required if weld is continuous for full length of

60、 joint.(焊縫長度標(biāo)注于焊接符號右側(cè)焊縫長度標(biāo)注于焊接符號右側(cè),如焊縫如焊縫為接口全長的連續(xù)焊縫為接口全長的連續(xù)焊縫,則無須標(biāo)注長度則無須標(biāo)注長度)WIT 4- 80 Groove Weld Dimensions - 6 of 9 ( 坡口焊縫尺寸 - 6/9) Pitch is the distance between centers of adjacent weld segments. Pitch length is shown to the right of the weld length dimension following a hyphen. (焊縫間距是指相鄰兩焊縫間距是指相鄰兩段焊縫中心之間的距離段焊縫中心之間的距離,其長度標(biāo)注于焊縫長