WPS焊接工艺规程ppt课件

1、12What is a WPS?什么是焊接工艺规范什么是焊接工艺规范(WPS)?t焊接工艺规范是为了制造符合规范要求的焊缝而提供指点的、经过焊接工艺规范是为了制造符合规范要求的焊缝而提供指点的、经过评定合格的焊接工艺文件。它或其它文件可用于对焊工或焊机操作评定合格的焊接工艺文件。它或其它文件可用于对焊工或焊机操作工提供指点工提供指点,以保证符合规范要求。以保证符合规范要求。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 的内容的内容t一份完好的一份完好的WPS 该当包含在该当包含在WPS中所采用的、对每中所采用的、对每一种焊接方法而言的一切重要变素、非重要变素和当一种焊接方法而言的一切重要变素、非重要变素和当需求时的附加重要变素。样

3、表见图需求时的附加重要变素。样表见图1。焊接工艺规范。焊接工艺规范其实就是规定某一焊接工艺的各种焊接变素。其实就是规定某一焊接工艺的各种焊接变素。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应该由谁制定应该由谁制定?t每个制造者或承包者应按照焊接规范的规定编写合理的WPS.详细的说WPS是由代表厂家的焊接工程师编写的。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用于产品焊接的WPS,该当在制造现场便于获得，以供查考，并供授权检验师(AI)检查。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.6Remarks:PQR is the qualified welding procedure procedure and test results record.备注：PQR是经过评定合格的焊接工艺数据及相关实验结果记录7+8选择资源本钱实践约束阅读规范，列出可行焊接方法主要约束修订可行焊接方法评价消费本钱选择规范9Weld P

6、rocess Selection焊接工艺选择焊接工艺选择10Variables 焊接变素焊接变素t重要变素重要变素essential variablest 影响接头弯曲和拉伸性能的要素影响接头弯曲和拉伸性能的要素Affect the bend ability and tension ability of jointt非重要变素非重要变素non essential variablest 对弯曲和拉伸不能产生明显影响的要素对弯曲和拉伸不能产生明显影响的要素Cant produce visible affection on bend ability and tension ability of jo

7、intt附加重要变素附加重要变素supplemental essential variables t 影响接头冲击性能的要素影响接头冲击性能的要素Affect the toughness of joint11Essentials listed in AWS D1.1AWS 对各种焊接方法重要变素的规定对各种焊接方法重要变素的规定12 Essentials in GMAW or FCAWGMAW and FCAW中的重要变素中的重要变素(AWS)tFiller 填充资料填充资料tIncrease in filler metal classification strength添加填料的强度添加填料

8、的强度tChange from one electrode classification to any other electrode classification，limited to FCAW从一种焊丝型号改动到另一从一种焊丝型号改动到另一种焊丝型号只限药芯焊丝种焊丝型号只限药芯焊丝tChange to an electrode classification not covered in AWS A5.18,A5.20,A5.28,A5.29.焊丝变为在焊丝变为在AWS中没有的型号中没有的型号tElectrode焊丝焊丝tChange in nominal electrode diamet

9、er :焊焊丝直径变化实芯焊丝，焊丝直径添加丝直径变化实芯焊丝，焊丝直径添加药芯焊丝药芯焊丝13tElectrical parameters焊接参数焊接参数tA change in the amperage for each diameter每种焊丝直径的电流变化超越每种焊丝直径的电流变化超越10tA change in type of current (ac or dc) or polarity and mode of transfer (GMAW only)电流极性变化或电流极性变化或GMAW过渡方式变化过渡方式变化tA change in the voltage for each dia

10、meter，surpass 7%电压改动超越电压改动超越7tAn increase or decrease in the wire feed speed for each electrode diameter surpass 10%送丝速度改动超越送丝速度改动超越1014tA change in the travel speed surpass 25%焊接速度改动超越25tAn increase in heat input surpass 10%热输入添加超越10 tShielding gas维护气tA change in shielding gas from a single gas to

11、any other single gas or mixture of gas, or in the specified nominal percentage composition of a gas mixture, or to no gas维护气从单种气体变为其它单种气体或混合气体15tA change in total gas flow rate气体流量添加大于50或减小超越20tA change to a shielding gas not covered in。改动为不包含在AWS A5.18,5.28,A5.20,A5.29中的维护气。tGeneral 普通条件tFor the PQ

12、R groove area, an increase or decrease 25% in the number of passes 对于与PQR坡口面积一样的，焊道数改动超越25tA change in position not qualified焊接位置改动为未经评定的位置。16tA change in diameter, or thickness, or both, not qualified by Table 2工件直径或厚度未在评定范围之外。tA change in base metal or combination of base metals not listed on the

13、PQR 母材未经评定tVertical Welding: For any pass from uphill to downhill or vice versa立焊：任何焊道从上到下焊接或相反tA change in groove type (e.g., single-V to double-V), 坡口方式变化例如，单V到双V)17tA change in the type of groove to a square groove and vice versa从任何坡口方式改动为直边或相反tA change exceeding the tolerances, including decreas

14、ing of groove angle, decreasing of root opening, increasing of root face.坡口角度减小，坡口间隙减小以及钝边添加超越公差范围tThe omission, but not inclusion, of backing or back gouging取消衬垫或清根tDecrease from preheat temperature6 by 15 Celsius degree预热温度降低超越15度18Figure 1. WPS sample 图1.样表Welding Procedure Specification (WPS)焊接工

15、艺规范样表焊接工艺规范样表19Type of qualification testWPS评定实验工程及试样数量、类型评定实验工程及试样数量、类型tThe type and number of qualification tests required to qualify a WPS for a given thickness, diameter, or both, shall conform to Table 2 (CJP), Table 3 (PJP) or Table 4 (fillet). Details on the individual NDT and mechanical test

16、 requirements are found in the following subsections:t 评定WPS实验的工程及数量应遵照表2(全焊透接头，表3部分焊透接头或表4角接头。主要有以下几种实验工程。t (1) Visual Inspection 外观检验t (2) NDT无损检验，含RT,MT,UT,PT等t (3) Face, root and side bend面弯，背弯及侧弯t (4) Reduced Section缩截面焊缝拉伸t (5) All-Weld-Metal Tension全熔敷金属拉伸t (6) Macroetch 宏观浸蚀20Number and type

17、 of test specimens and range of thickness qualified-CJP评定焊缝的厚度和实验数量及类型评定焊缝的厚度和实验数量及类型(全焊透接头全焊透接头21Number and type of test specimens and range of thickness qualified-PJP评定焊缝的厚度和实验数量及类型评定焊缝的厚度和实验数量及类型(部分焊透接头部分焊透接头22Number and type of test specimens and range of thickness qualified-Fillet joint评定焊缝的厚度和

18、实验数量及类型评定焊缝的厚度和实验数量及类型(角接头角接头23Classification of base metal 母材分类母材分类242526Groove Weld Types坡口方式坡口方式Welding variables焊接要素焊接要素27Groove Weld Types坡口方式坡口方式Welding variables焊接要素焊接要素28Groove Weld Types坡口方式坡口方式Welding variables焊接要素焊接要素29Groove Weld Types坡口方式坡口方式Welding variables焊接要素焊接要素30Groove Weld Types坡

19、口方式坡口方式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 variables焊接要素焊接要素坡口焊缝板焊接位置33Welding variables焊接要素焊接要素Groove weld pipe welding position 坡口焊缝管焊接位置34Welding variables焊接要素焊接要素Groove weld pipe welding position 坡口焊缝管焊接位置35Welding variables焊接要素焊接要素Groove weld pipe welding position 坡口焊缝管焊接位置36Welding variables焊接要素焊接要素Groove weld pipe welding position 坡口焊缝管焊接位置37Welding variables焊接要素焊接要素Positions of Plate fillet welds 板角焊缝位置38Welding variables焊接要素焊接要素Positions of test piping or tubing for fillet welds 管管、管板角焊缝位置39W