WPS焊接工藝規(guī)程ppt課件

1、12What is a WPS?什么是焊接工藝規(guī)范什么是焊接工藝規(guī)范(WPS)?t焊接工藝規(guī)范是為了制造符合規(guī)范要求的焊縫而提供指點的、經(jīng)過焊接工藝規(guī)范是為了制造符合規(guī)范要求的焊縫而提供指點的、經(jīng)過評定合格的焊接工藝文件。它或其它文件可用于對焊工或焊機操作評定合格的焊接工藝文件。它或其它文件可用于對焊工或焊機操作工提供指點工提供指點,以保證符合規(guī)范要求。以保證符合規(guī)范要求。t t A WPS is a written qualified welding procedure prepared to provide direction for making production welds to

2、Code requirements. The WPS or other documents may be used to provide direction to the welder or welding operator to assure compliance with the Code requirements.3What is included by a WPS?WPS 的內(nèi)容的內(nèi)容t一份完好的一份完好的WPS 該當包含在該當包含在WPS中所采用的、對每中所采用的、對每一種焊接方法而言的一切重要變素、非重要變素和當一種焊接方法而言的一切重要變素、非重要變素和當需求時的附加重要變素。樣

3、表見圖需求時的附加重要變素。樣表見圖1。焊接工藝規(guī)范。焊接工藝規(guī)范其實就是規(guī)定某一焊接工藝的各種焊接變素。其實就是規(guī)定某一焊接工藝的各種焊接變素。t The completed WPS shall describe all of the essential, nonessential, and, when required, supplementary essential variables for each welding process used in the WPS. For the sample, pls see the figure 1.4Who take charge of com

4、piling WPS?WPS應(yīng)該由誰制定應(yīng)該由誰制定?t每個制造者或承包者應(yīng)按照焊接規(guī)范的規(guī)定編寫合理的WPS.詳細的說WPS是由代表廠家的焊接工程師編寫的。t Each manufacturer and contractor shall prepare written Welding Procedure Specifications which are defined in corresponding welding code.5Availability of the WPS WPS的可得性t用于產(chǎn)品焊接的WPS,該當在制造現(xiàn)場便于獲得，以供查考，并供授權(quán)檢驗師(AI)檢查。t A WPS

5、used for Code production welding shall be available for reference and review by the Authorized Inspector (AI) at the fabrication site.6Authorized by AI授權(quán)檢驗師檢查conducted by welder 焊工或焊接操作工 根據(jù)WPS進展消費compiled by welding engineer according to qualified PQR焊接工程師根據(jù)評定合格的工藝評定記錄PQR)制定恰當?shù)暮附庸に囈?guī)范 WPSsupervised b

6、y AI授權(quán)檢驗師檢查Simple connection diagram WPS關(guān)系簡圖Remarks:PQR is the qualified welding procedure procedure and test results record.備注：PQR是經(jīng)過評定合格的焊接工藝數(shù)據(jù)及相關(guān)實驗結(jié)果記錄7+FCAW藥芯焊絲維護焊SAW埋弧焊GMAW氣保焊SMAW焊條電弧焊GTAW鎢極氬弧焊+8選擇資源本錢實踐約束閱讀規(guī)范，列出可行焊接方法主要約束修訂可行焊接方法評價消費本錢選擇規(guī)范9Weld Process Selection焊接工藝選擇焊接工藝選擇The “ideal welding p

7、rocess is that which achieves the minimum specification requirements at the minimum cost.完美的焊接工藝是那種以最小本錢獲得規(guī)范要求的最低程度The Practical Welding Engineer10Variables 焊接變素焊接變素t重要變素重要變素essential variablest 影響接頭彎曲和拉伸性能的要素影響接頭彎曲和拉伸性能的要素Affect the bend ability and tension ability of jointt非重要變素非重要變素non essential

8、variablest 對彎曲和拉伸不能產(chǎn)生明顯影響的要素對彎曲和拉伸不能產(chǎn)生明顯影響的要素Cant produce visible affection on bend ability and tension ability of jointt附加重要變素附加重要變素supplemental essential variables t 影響接頭沖擊性能的要素影響接頭沖擊性能的要素Affect the toughness of joint11Essentials listed in AWS D1.1AWS 對各種焊接方法重要變素的規(guī)定12 Essentials in GMAW or FCAWGMA

9、W and FCAW中的重要變素中的重要變素(AWS)tFiller 填充資料填充資料tIncrease in filler metal classification strength添加填料的強度添加填料的強度tChange from one electrode classification to any other electrode classification，limited to FCAW從一種焊絲型號改動到另一從一種焊絲型號改動到另一種焊絲型號只限藥芯焊絲種焊絲型號只限藥芯焊絲tChange to an electrode classification not covered in

10、 AWS A5.18,A5.20,A5.28,A5.29.焊絲變?yōu)樵诤附z變?yōu)樵贏WS中沒有的型號中沒有的型號tElectrode焊絲焊絲tChange in nominal electrode diameter :焊焊絲直徑變化實芯焊絲，焊絲直徑添加絲直徑變化實芯焊絲，焊絲直徑添加藥芯焊絲藥芯焊絲13tElectrical parameters焊接參數(shù)焊接參數(shù)tA change in the amperage for each diameter每種焊絲直徑的電流變化超越每種焊絲直徑的電流變化超越10tA change in type of current (ac or dc) or polar

11、ity and mode of transfer (GMAW only)電流極性變化或電流極性變化或GMAW過渡方式變化過渡方式變化tA change in the voltage for each diameter，surpass 7%電壓改動超越電壓改動超越7tAn increase or decrease in the wire feed speed for each electrode diameter surpass 10%送絲速度改動超越送絲速度改動超越1014tA change in the travel speed surpass 25%焊接速度改動超越25tAn increa

12、se in heat input surpass 10%熱輸入添加超越10 tShielding gas維護氣tA change in shielding gas from a single gas to any other single gas or mixture of gas, or in the specified nominal percentage composition of a gas mixture, or to no gas維護氣從單種氣體變?yōu)槠渌鼏畏N氣體或混合氣體15tA change in total gas flow rate氣體流量添加大于50或減小超越20tA c

13、hange to a shielding gas not covered in。改動為不包含在AWS A5.18,5.28,A5.20,A5.29中的維護氣。tGeneral 普通條件tFor the PQR groove area, an increase or decrease 25% in the number of passes 對于與PQR坡口面積一樣的，焊道數(shù)改動超越25tA change in position not qualified焊接位置改動為未經(jīng)評定的位置。16tA change in diameter, or thickness, or both, not quali

14、fied by Table 2工件直徑或厚度未在評定范圍之外。tA change in base metal or combination of base metals not listed on the PQR 母材未經(jīng)評定tVertical Welding: For any pass from uphill to downhill or vice versa立焊：任何焊道從上到下焊接或相反tA change in groove type (e.g., single-V to double-V), 坡口方式變化例如，單V到雙V)17tA change in the type of groov

15、e to a square groove and vice versa從任何坡口方式改動為直邊或相反tA change exceeding the tolerances, including decreasing of groove angle, decreasing of root opening, increasing of root face.坡口角度減小，坡口間隙減小以及鈍邊添加超越公差范圍tThe omission, but not inclusion, of backing or back gouging取消襯墊或清根tDecrease from preheat temperatu

16、re6 by 15 Celsius degree預(yù)熱溫度降低超越15度18Figure 1. WPS sample 圖1.樣表Welding Procedure Specification (WPS)焊接工藝規(guī)范樣表19Type of qualification testWPS評定實驗工程及試樣數(shù)量、類型評定實驗工程及試樣數(shù)量、類型tThe type and number of qualification tests required to qualify a WPS for a given thickness, diameter, or both, shall conform to Tabl

17、e 2 (CJP), Table 3 (PJP) or Table 4 (fillet). Details on the individual NDT and mechanical test requirements are found in the following subsections:t 評定WPS實驗的工程及數(shù)量應(yīng)遵照表2(全焊透接頭，表3部分焊透接頭或表4角接頭。主要有以下幾種實驗工程。t (1) Visual Inspection 外觀檢驗t (2) NDT無損檢驗，含RT,MT,UT,PT等t (3) Face, root and side bend面彎，背彎及側(cè)彎t (4)

18、 Reduced Section縮截面焊縫拉伸t (5) All-Weld-Metal Tension全熔敷金屬拉伸t (6) Macroetch 宏觀浸蝕20Number and type of test specimens and range of thickness qualified-CJP評定焊縫的厚度和實驗數(shù)量及類型(全焊透接頭21Number and type of test specimens and range of thickness qualified-PJP評定焊縫的厚度和實驗數(shù)量及類型(部分焊透接頭22Number and type of test specimens

19、 and range of thickness qualified-Fillet joint評定焊縫的厚度和實驗數(shù)量及類型(角接頭23Classification of base metal 母材分類母材分類242526Square直邊Single-V單V坡口(帶襯墊)Double-V雙V形坡口(X形坡口)Groove Weld Types坡坡口方式口方式Welding variables焊接要素焊接要素27Single-bevel單邊V形坡口Double-bevelK形坡口Groove Weld Types坡口坡口方式方式Welding variables焊接要素焊接要素28Single-U

20、單面U形坡口Double-U雙面U形坡口Groove Weld Types坡口坡口方式方式Welding variables焊接要素焊接要素29Single-J單面J形坡口Double-J雙面J形坡口Groove Weld Types坡口坡口方式方式Welding variables焊接要素焊接要素30Flare-bevel卷邊接頭Flare-VV形卷邊接頭Groove Weld Types坡口坡口方式方式Welding variables焊接要素焊接要素31Welding variables焊接要素焊接要素32Welding Positions 焊接位置焊接位置 Welding variab

21、les焊接要素焊接要素坡口焊縫板焊接位置33Welding variables焊接要素焊接要素Groove weld pipe welding position 坡口焊縫管焊接位置34Welding variables焊接要素焊接要素Groove weld pipe welding position 坡口焊縫管焊接位置35Welding variables焊接要素焊接要素Groove weld pipe welding position 坡口焊縫管焊接位置36Welding variables焊接要素焊接要素Groove weld pipe welding position 坡口焊縫管焊接位置37Welding variables焊接要素焊接要素Positions of Plate fillet welds 板角焊縫位置38Welding variables焊接要素焊接要素Positions of test piping or tubing for fillet welds 管管、管板角焊縫位置39Welding variables焊接要素焊接要素40H