GB/T 26643.3-2015 English PDF

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GB/T 26643.3-2015: Non-destructive testing -- Infrared flash thermography -- Part 3: Blocks
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 26643.3-2015	259	Add to Cart	3 days	Non-destructive testing -- Infrared flash thermography -- Part 3: Blocks	Valid

Similar standards

GB/T 26641   GB/T 28784.2   GB/T 28619   GB/T 26642   GB/T 26643   

Basic data

Standard ID: GB/T 26643.3-2015 (GB/T26643.3-2015)
Description (Translated English): Non-destructive testing -- Infrared flash thermography -- Part 3: Blocks
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J04
Classification of International Standard: 19.100
Word Count Estimation: 12,178
Date of Issue: 2015-10-09
Date of Implementation: 2016-06-01
Quoted Standard: GB/T 12604.9; GB/T 20737; GB/T 26643
Regulation (derived from): National Standard Announcement 2015 No.31
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Standard specifies the test block as the type, technical requirements and test methods to detect infrared lamp driver.

GB/T 26643.3-2015: Non-destructive testing -- Infrared flash thermography -- Part 3: Blocks

---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.
Non-destructive testing - Infrared flash thermography - Part 3. Blocks ICS 19.100 J04 National Standards of People's Republic of China NDT flash incentive Thermal imaging Part 3. Test Block Issued on. 2015-10-09 2016-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 test block type 1 5 Technical requirements 1 6 Test Method 3 7 Inspection Item 4 8 numeral 5 Delamination and debonding defect Appendix A (informative) foam core structure reference block Reference Example 6 Reference 9 Figure 1 Ⅰ type 2 test block Figure 2 Type 2 test block Ⅱ Figure A.1 foam sandwich structure diagram 7 Figure A.2 foam sandwich structure physical map 8 Figure A.3 0.224s time of the original heat 8 Table 1 detection capability of the test piece test item 4 Table 2 thermal excitation uniformity test items Test Block 4 Table 3 test items test block 5

Foreword

GB/T 26643 "NDT flash incentive Thermal imaging" is divided into the following sections. --- Part 1. Guidelines; --- Part 2. Test specification; --- Part 3. test block; --- Part 4. detection system. This is Part 3 GB/T 26643 of. This section drafted in accordance with GB/T 1.1-2009 given rules. Please note that some of the content of this document may involve patents. The issuing authority of this document should not bear the responsibility to identify these patents. This part of the National NDT Standardization Technical Committee (SAC/TC56) made and centralized. This section is drafted. Beijing Wei Taikai letter New Technology Co., Capital Normal University, Chongqing Normal University, China Aviation Industry Group Company Beijing Institute of Aeronautical Materials, Materials and Aerospace Technology Research Institute, Shanghai Institute of Materials. The main drafters of this section. Zeng Zhi, Wang Xun, Guo Guangping, Liuying Tao, Zhu Junhui, Tao Ning, Jin Wanping, Li Xiaoli, Zhang Cun-lin, Jin Yufei. NDT flash incentive Thermal imaging Part 3. Test Block

1 Scope

GB/T 26643 provisions of this part of the flash incentive infrared thermography for detecting the type of the test piece, technical requirements and test methods.

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 12604.9 Terminology for nondestructive testing infrared detector GB/T 20737 Non-destructive testing - General terms and definitions GB/T 26643 NDT flash incentive Thermal imaging guidance

3 Terms and Definitions

GB/T 12604.9, terms and definitions GB/T 20737 and GB/T 26643.1 defined apply to this document.

4 test block type

Test block is divided into two types. standard test blocks and test block. Among them, the standard test block is divided into test block detection capability and thermal excitation uniformity inspection Test block. Detection capability test pieces for the evaluation of thermal imaging infrared excitation flash detection system capability can also be used to periodically check the status of equipment performance. Uniformity of thermal excitation detection test for measuring the flash excitation block infrared thermal image detection system thermal excitation uniformity, can be used to regularly check Pulse excitation source heat uniformity. Reference block is used to set the flash excitation infrared thermal image detection system parameters, and measurement and defect recognition. Based on the detection head , The reference block may contain known defects test block, known defects can be a natural defect or artificial defects.

5 Technical requirements

5.1 detection capability test block 5.1.1 Materials Produced by homogeneous material from the following two. a) a metal thermal diffusion coefficient should be between 4 × 10-5m2/s ~ 9 × 10-5m2/s, such as. surface anodized (black) process Aluminum; b) a non-metallic thermal diffusion coefficient should be in the range of 2 × 10-7m2/s ~ 5 × 10-7m2/s, such as. black Bakelite. 5.1.2 shapes and sizes Test block shape is rectangular plates, flat bottom hole in the back of the processing has different depths and sizes (see 5.1.3). There are two types of test pieces, Ⅰ type specimen shape and dimensions shown in Figure 1, the shape and size of type Ⅱ test block shown in Figure 2. ......

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