什么是焊接程序规范(WPS)

什么是焊接程序规范(WPS)

焊接工艺规范(WPS)是mal written document describing welding procedures, which provides direction to the welder or welding operators for making sound and quality production welds as per the code requirements . The purpose of the document is to guide welders to the accepted procedures so that repeatable and trusted welding techniques are used. A WPS is developed for each material alloy and for each welding type used. Specific codes and/or engineering societies are often the driving force behind the development of a company’s WPS. A WPS is supported by a Procedure Qualification Record (PQR or WPQR). A PQR is a record of a test weld performed and tested (more rigorously) to ensure that the procedure will produce a good weld. Individual welders are certified with a qualification test documented in a Welder Qualification Test Record (WQTR) that shows they have the understanding and demonstrated ability to work within the specified WPS.

根据这一点美国焊接学会(AWS),WPS详细规定了特定应用所需的焊接变量,以确保受训练的焊工的可重复性。AWS将PQR定义为焊接变量的记录,用于产生可接受的测试焊接和在焊接上进行的测试结果,以限定焊接程序规范。对于钢结构(土木工程结构)AWS D1.1是一种广泛使用的标准。它指定了一个资格预审选项(第3章)或a资格选项(第4章),供焊接过程批准。

美国机械工程师协会(ASME)类似地将WPS定义为书面文档,该文件提供给焊机或焊接操作员的方向,用于按照代码要求制作生产焊接.ASME还将焊接PQR定义为在测试优惠券焊接期间记录的变量记录。记录还包含测试标本的测试结果。

阅读更多 :Welding Inspection Tools –焊仪的类型

What is WPS :

“焊接程序规格是一种形式,包含焊接槽的细节,待采用的焊接方法,电极和/或焊接杆型和直径,电流,电压,焊接位置,焊接运行号码和根据其CODES相关项目标准编写的类似信息(ASME和/或en标准)。

WPS由制造商/子承包商编写,并在工作开始前受授权检验机构批准。“

它包含有足够的细节,以使任何能力的人能够应用信息并产生可接受的质量焊接。在WPS上指定的细节和对照水平取决于要焊接的关节的应用和临界性。

应在W.PS上录制的典型项目: -

  • Procedure number
  • 过程类型
  • Consumable Size, Type and full Codification.
  • 可消耗的烘焙要求,如果适用
  • 母材级和规格。
  • 厚度范围。
  • 板材或管道,直径范围
  • 焊接位置
  • 关节贴合,制备,清洁,尺寸等。
  • 背带,后退刨刨信息。
  • Pre-Heat (Min Temp and Method)
  • 如果需要的是接口(记录的最高温度)
  • 焊接后热处理。如果需要(时间和温度)
  • 焊接技术(编织,最大运行宽度等)
  • Arc Energy Limits should be stated if impact tests are required or if the material being welded is sensitive to heat input.

需要包括联合配置的草图,其应包括焊接制剂的基本尺寸。

焊接程序规范
焊接程序规范

Sachin Thorat.

Sachin is a B-TECH graduate in Mechanical Engineering from a reputed Engineering college. Currently, he is working in the sheet metal industry as a designer. Additionally, he has interested in Product Design, Animation, and Project design. He also likes to write articles related to the mechanical engineering field and tries to motivate other mechanical engineering students by his innovative project ideas, design, models and videos.

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