JJG 704-2005 焊接检验尺

中华人民共和国国家计量检定规程

JJG704-2005

焊接检验尺

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2005一03一03发布2005一09一03实施

国家质量监督检验检疫总局发布

JJG704-2005

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JJG704-2005

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本规程经国家质量监督检验检疫总局于2005年3月3日批准，并自

2005年9月3日起施行。

归口单位:全国几何量工程参量计量技术委员会

主要起草单位:陕西省计量测试研究所

参加起草单位:西安建筑科技大学

本规程委托全国几何量工程参量计量技术委员会负责解释

JJG704-2005

本规程主要起草人:

王彩霞(陕西省计量测试研究所)

常青(陕西省计量测试研究所)

张磊(陕西省计量测试研究所)

参加起草人:

王平安(西安建筑科技大学)

JJG704-2005

目录

1范围·(1)

2引用文献·········································，·······································…·…(1)

3概述·······························································，························…·…(1)

4计量性能要求·············································································……(1)

4.1高度尺、咬边深度尺和多用尺指标线棱边至主尺标记面的距离············……(1)

4.2标尺标记的宽度和宽度差····························································……(1)

4.3测量面的表面粗糙度··································································……(1)

4.4测量面的平面度·····································································…·…(2)

4.5角度样板的偏差和测角尺的示值误差············································……(3)

4.6主尺边缘线性标尺的示值误差············，···········，····························……(3)

4.7高度尺的零值误差和示值误差·····················································……(3)

4.8咬边深度尺的零值误差和示值误差················································……(3)

4.9宽度尺的示值误差·····································································……(3)

4.10间隙尺的示值误差·······，·，························································……(3)

5通用技术要求·············································································……(3)

6计量器具控制··············································································……(3)

6.1检定条件·················································································……(3)

6.2检定项目·················································································……(4)

6.3检定方法················································································…·…(5)

6.4检定结果的处理········································································……(7)

6.5检定周期·················································································……(7)

附录A专用样板的技术要求····························································……(8)

附录B咬边深度尺示值误差的测量结果不确定度评定···························……(9)

附录C测角尺示值误差的测量结果不确定度评定···································一(12)

附录n检定证书和检定结果通知书内页格式·······································……(ia)

Jac704-2005

焊接检验尺检定规程

范围

本规程适用于焊接检验尺的首次检定、后续检定和使用中检验。

2引用文献

本规程引用下列文献:

JJF1001-1998通用计量术语及定义

JJF1059-1999测量不确定度评定与表示

JJF1094-2002测量仪器特性评定

使用本规程时，应注意使用上述引用文献的现行有效版本。

3概述

焊接检验尺是利用线纹和游标测量等原理，检验焊接件的焊缝宽度、高度、焊接间

隙、坡口角度、咬边深度等的计量器具。主要结构形式分为工型(图1),II型(图2),

Iff型(图3)和N型(图4)0

主尺高度尺咬边深度尺(宽度尺标记)多用尺锁紧装置

角度尺标记)

〔间隙尺标记)

(正面)(反面)

图1焊接检验尺工型

4计量性能要求

4.1高度尺、咬边深度尺和多用尺指标线棱边至主尺标记面的距离

不大于0.3mmo

4.2标尺标记的宽度和宽度差

标尺标记的宽度应为(0.15士0.05)mm，宽度差0.05mmo

4.3测量面的表面粗糙度

不大于R,0.81emo

ITG704-2005

高度尺(宽度尺标记)多用尺锁紧装置

辛

角度尺标记)

(间隙尺标记)

(反面)

图2焊接检验尺n型

主尺高度尺多用尺锁紧装置(角度尺标记)

(宽度

间隙尺标记)

(正面)(反面)

图3焊接检验尺m型

主尺高度尺

锁紧装置

(角度尺标记)

犷

多用尺

!，川。升‘带1飞。

(宽度尺标记)

(正面)