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Calibration Specification for Electric and Pneumatic Torque wrenches
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JJF 1610-2017
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Basic data Standard ID | JJF 1610-2017 (JJF1610-2017) | Description (Translated English) | Calibration Specification for Electric and Pneumatic Torque wrenches | Sector / Industry | Metrology & Measurement Industry Standard | Classification of Chinese Standard | A53 | Classification of International Standard | 17.100 | Word Count Estimation | 20,271 | Date of Issue | 2017-02-28 | Date of Implementation | 2017-05-28 | Quoted Standard | GB/T 5621-2008; GB/T 16823.2; GB/T 16823.3-2010; GB/T 26547-2011 | Regulation (derived from) | General Administration of Quality Supervision, Inspection and Quarantine No. 23 of 2017 | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | Summary | This standard applies to the calibration of electric torque wrench, pneumatic torque wrench, bolt tightening machine and so on. This standard does not apply to the impact of the wrench calibration. |
JJF 1610-2017: Calibration Specification for Electric and Pneumatic Torque wrenches---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Calibration Specification for Electric and Pneumatic Torque wrenches
National Metrological Technical Code of the People's Republic of China
Code for calibration of electric and pneumatic torque wrenches
2017-02-28 released
2017-05-28 Implementation
State Administration of Quality Supervision, Inspection and Quarantine issued
Code for calibration of electric and pneumatic torque wrenches
Unit. National force hardness measurement technology committee
The main drafting unit. Henan Institute of Metrology
China Institute of Metrology
Participated in the drafting unit. Guangdong Institute of Metrology
Shaanxi Eastern Airlines Instrument Co., Ltd.
Atlas Copco (China) Investment Limited
This specification entrusts the National Strength Hardness Metrology Technical Committee to explain
The main drafters of this specification.
Wang Guangjun (Henan Institute of Metrology)
Zhang Zhongjie (Henan Institute of Metrology)
Meng Feng (China Institute of Metrology)
Participate in the drafters.
Fu Jianghong (Henan Institute of Metrology)
Li Chuang (Guangdong Institute of Metrology)
Feng Junjie (Shaanxi Eastern Airlines Instrument Co., Ltd.)
Zhang wei [Atlas Copco (China) Investment Co., Ltd.]
table of Contents
Introduction (II)
1 Scope (1)
2 References (1)
3 Terminology (1)
3.1 Bolt nut torque connection simulator (1)
3.2 High torque rate (1)
3.3 Low torque rate (1)
3.4 Tightening torque (1)
4 Overview (1)
5 Metering characteristics (1)
5.1 High torque rate indication relative error (1)
5.2 High torque rate indication repeatability (1)
5.3 Low torque rate indication relative error (1)
5.4 Low torque rate indication repeatability (2)
5.5 interpolation error (2)
6 Calibration conditions (2)
6.1 Environmental conditions (2)
6.2 Measurement standards and other equipment (2)
7 Calibration items and calibration methods (2)
7.1 Calibration items (2)
7.2 Calibration method (3)
8 Calibration results (4)
9 re-school time interval (5)
Appendix A Method for determining the uncertainty of the calibration of the electric and pneumatic torque wrench error (6)
Appendix B Electric, Pneumatic Torque Wrench Calibration Record Format (13)
Appendix C Electric, Pneumatic Torque Wrench Calibration Certificate Page Format (15)
Introduction
This specification is compiled according to JJF 1071-2010 "Rules for the preparation of national metrological calibration standards".
The main reference to this specification GB/T 16823.2 "Thread fasteners fastening general rules", GB/T 16823.3-2010
"Fastener torque clamping force test", GB/T 26547-2011 "threaded fasteners with rotary tool performance test
Method "and GB/T 5621-2008" rock drilling machinery and pneumatic tool performance test method "and so on.
This specification is the first release.
Code for calibration of electric and pneumatic torque wrenches
1 Scope
This specification applies to the calibration of electric torque wrenches, pneumatic torque wrenches, bolt tighteners, etc.
This specification does not apply to the impact of the wrench calibration.
2 reference file
This specification refers to the following documents.
Test method for performance of drilling machinery and pneumatic tools GB/T 5621-2008
General rules for fastening of threaded fasteners
Torque - clamping force test for fasteners
Test method for performance of rotary tools for threaded fasteners GB/T 26547-2011
For dated references, only the dated edition applies to this specification; references that are not dated
, The latest version (including all modifications) applies to this specification.
3 terminology
3.1 bolts and nuts torque connection simulator experimentalthreadedjoint
A connector that simulates a different thread connection state and a buffering function (hereinafter referred to as a simulator). Simulator
Including high torque rates and low torque rate simulators.
3.2 high torque rate hightorquerate
Torque from the test torque level of 10% to 100%, the corresponding angular displacement of not more than 27 °.
3.3 Low torque rate lowtorquerate
Torque from the test torque level of 10% to 100%, the corresponding angular displacement of not less than 650 °.
3.4 tightening torque tighteningtorque
To achieve the required tightening force to tighten the bolts or nuts required torque.
4 Overview
Electric, pneumatic torque wrench (hereinafter referred to as torque wrench) is able to output the set torque of the tightening bolt fasteners
With the rotary power tool, by the motor, torque control mechanism, torque output mechanism and other components, the use of dynamic energy
The source is generally driven by electric energy and air kinetic energy. The output torque control method uses a clutch, current, air pressure, etc.
Several forms. Common types of mechanical - pneumatic twist wrench, clutch type - pneumatic twist wrench, current type Torsion
Electric wrench and electric screw tightening machine.
5 measurement characteristics
5.1 High torque rate indication relative error
5.2 High torque rate indication repeatability
5.3 Low torque ratio indication relative error
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