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YS/T 1000-2014

Chinese Standard: 'YS/T 1000-2014'
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YS/T 1000-2014English199 Add to Cart Days<=3 Longitudinal wave method of ultrasonic inspection for copper and copper alloys tubes Valid YS/T 1000-2014
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Detail Information of YS/T 1000-2014; YS/T1000-2014
Description (Translated English): Longitudinal wave method of ultrasonic inspection forcopper and copper alloys tubes
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H26
Classification of International Standard: 77.040.20
Word Count Estimation: 8,827
Date of Issue: 10/14/2014
Date of Implementation: 4/1/2015
Quoted Standard: GB/T 9445; JB/T 10061; JB/T 10062
Drafting Organization: Chinalco Luoyang Copper Co., Ltd.
Administrative Organization: National non-ferrous metals Standardization Technical Committee
Regulation (derived from): People's Republic of China Ministry of Industry and Information Technology Notice 2014 No. 63; Industry Standard Filing Notice 2014 No. 12 (Overall No. 180)
Issuing agency(ies): Ministry of Industry and Information Technology of the People's Republic of China
Summary: This Standard specifies the longitudinal wave ultrasonic flaw detection method for copper and copper alloy tubing. This Standard applies to A-mode pulse longitudinal wave reflection method of wall thickness and diameter ratio �R 0.2 copper and copper alloy


YS/T 1000-2014
Longitudinal wave method of ultrasonic inspection for copper and copper alloys tubes
ICS 77.040.20
H26
People's Republic of China Nonferrous Metals Industry Standard
Copper and copper alloy tube longitudinal wave ultrasonic flaw detection method
Longitudinalwavemethodofultrasonicinspectionfor
copperandcopperaloystubes
Issued on: 2014-10-14
2015-04-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized.
This standard was drafted: Chinalco Luoyang Copper Co., Ltd. Guilin, Li Jia metal, Jiangyin Xinhua Acer Copper Co., Ltd., Wuhan
Pan-Island Alloy Co., Ltd. Vietnam.
The main drafters of this standard: Li Xianghai, Lou East Court, Wang Yueming, Wei Shaolin, Wang Nan, Wang Yan, Qin Liyun, Chen, Wang Ye A, Yao Union,
Following the text friends.
Copper and copper alloy tube longitudinal wave ultrasonic flaw detection method
1 Scope
This standard specifies the longitudinal ultrasonic wave testing method for copper and copper alloy tubing.
This standard applies to A type pulse longitudinal wave reflection method for ultrasonic wall thickness to diameter ratio of ≥0.2 copper and copper alloy pipe inspection.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 9445 NDT personnel qualification and certification
JB/T 10061 A-mode pulse reflection type ultrasonic flaw detector General technical requirements
JB/T 10062 ultrasonic flaw detection probe performance test method
3 PRINCIPLE OF THE METHOD
A basic principle of pulse reflection type ultrasonic flaw detection method is a high-frequency electrical pulses generated ultrasonic flaw detector is applied to the wafer probe, the grain
Piece high frequency vibration, the occurrence of electro-acoustic transducer, ultrasonic probe by coupling medium generated by incoming wafer to subject the workpiece, ultrasonic
When reflection interface (such as a defect or bottom) experiencing different acoustic impedance medium within the workpiece and return propagation wafer probe, wafer after another
Second electro-acoustic transducer, acoustic energy into electrical energy, and accepted by the signal processing equipment, and show the depth of defects on the flaw detector display
size.
A type pulse longitudinal wave reflection method include immersion method testing (using the longitudinal wave line focus probe), the contact detection method (dual or single crystal straight probe
Crystal straight probe) in two ways.
4 General requirements
4.1 ultrasonic testing personnel shall GB/T 9445 requirements trained, should be authorized to obtain the relevant state departments issued by the ultrasonic flaw detection technology
Surgery tier qualification certificates. Obtain inspection grade Ⅱ (including Ⅱ grade) technical level qualifications a person shall be eligible for the issuance of the inspection report.
4.2 Exploration is the pipe surface roughness Ra should not be greater than 6.3μm, and shall not affect the testing of scale, rust, oil and so on. Immersion method
When testing, the inner surface of the pipe should be clean, clean; straightness of the pipe should meet the testing requirements.
4.3 under the specified conditions of detection sensitivity, signal to noise ratio is greater than the probe pipe 8dB.
4.4 testing site could not be located in have magnetic, vibration, high frequency, spark, heat, moisture, mechanical noisy environment, so as not to affect the detection of
Stability and accuracy of detection.
4.5 coupling agent is selected, so that the body should not be, brass surface quality is compromised. Testing contact method commonly used oil as a coupling agent, the liquid immersion method
Testing generally use clean tap water as a coupling agent.
5 testing equipment
5.1 Flaw
A pulse reflection type ultrasonic flaw detector should be consistent with JB/T 10061 requirements.
Related standard:   YS/T 999-2014  YS/T 1103-2016
   
 
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