GB/T 11346-2018 English PDFUS$379.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 11346-2018: Radiographic testing for aluminum alloy castings -- Defect levels Status: Valid GB/T 11346: Historical versions
Basic dataStandard ID: GB/T 11346-2018 (GB/T11346-2018)Description (Translated English): Radiographic testing for aluminum alloy castings -- Defect levels Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J31 Classification of International Standard: 77.040.20 Word Count Estimation: 19,110 Date of Issue: 2018-07-13 Date of Implementation: 2018-08-01 Older Standard (superseded by this standard): GB/T 11346-1989 Quoted Standard: GB/T 5611; GB/T 5677; GB/T 9445; GB/T 12604.2 Regulation (derived from): National Standard Announcement No. 10 of 2018 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration Summary: This standard specifies the personnel requirements, film requirements, defect classification, rating and assessment records for radiographic inspection of aluminum alloy castings (hereinafter referred to as castings). This standard is applicable to the defect classification of radiographic inspection of aluminum alloy castings with a thickness of not more than 50 mm. This standard does not apply to aluminum alloy die castings. This standard does not apply to the classification of defects such as cracks, insufficient pouring, eccentricity, cold insulation and surface irregularities. GB/T 11346-2018: Radiographic testing for aluminum alloy castings -- Defect levels---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.Radiograpial testing for aluminum alloy castings.Defect levels ICS 77.040.20 J31 National Standards of People's Republic of China Replace GB/T 11346-1989 Radiographic inspection defect classification of aluminum alloy castings Published on.2018-07-13 2018-08-01 implementation State market supervision and administration China National Standardization Administration issued ContentForeword III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 personnel requirements 2 5 film requirements 2 6 defect classification 2 7 Rating 2 8 Assessment record 2 Appendix A (Normative Appendix) Defect Map 4ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 11346-1989 "X-ray photography inspection pinhole (circular) classification of aluminum alloy castings", and GB/T 11346- Compared with 1989, the main technical changes except editorial changes are as follows. --- Revised scope (see Chapter 1, Chapter 1 of the 1989 edition); --- Revised the normative reference document (see Chapter 2, Chapter 2 of the 1989 edition); --- Added terms and definitions (see Chapter 3); --- Revised personnel requirements (see Chapter 4, Chapter 3 of the 1989 edition); --- Increased the requirements for negatives on image quality (see Chapter 5, Chapter 4 of the 1989 edition); --- Increased the classification of defects such as porosity, porosity, shrinkage, etc. (see Chapter 6); --- Revised the rules for the evaluation of negatives (see Chapter 7, Chapter 6 of the 1989 edition); --- Revised the radiographic standard map of defects (see Appendix A, 5.2 of 1989). This standard is proposed and managed by the National Foundry Standardization Technical Committee (SAC/TC54). This standard is drafted by. CRRC Qishuyan Locomotive Vehicle Technology Research Institute Co., Ltd. Participated in the drafting of this standard. Shenyang Foundry Research Institute Co., Ltd., Baoding Lizhong Wheel Manufacturing Co., Ltd., Zhangzhou Jinnuo Industrial Co., Ltd. Company, Anhui Hengtai Power Technology Co., Ltd., CITIC Daika Co., Ltd., Zhejiang Wanfeng Motorcycle Co., Ltd., Shanghai Pilberg Nonferrous Parts Co., Ltd., Dongguan Yi'an Technology Co., Ltd. The main drafters of this standard. Wan Shengyun, Zheng Xiaokang, Jiang Tianfang, Li Xingjie, Feng Zhijun, Chen Yuxin, Liu Lei, Ma Zhengsong, Sun Chungui, Zhang Wenxian, Zhang Gaowei, Lan Tian, Ala Teng, Liu Jun, Lu Shiping, Liu Jianping, Zhao Haifeng, Li Yangde, Li Weirong. The previous versions of the standards replaced by this standard are. ---GB/T 11346-1989. Radiographic inspection defect classification of aluminum alloy castings1 ScopeThis standard specifies the personnel requirements, film requirements, defect classification, grade evaluation of radiographic inspection of aluminum alloy castings (hereinafter referred to as castings). Set and assess records. This standard is applicable to the defect classification of radiographic inspection of aluminum alloy castings with a thickness of not more than 50 mm. This standard does not apply to aluminum alloy die castings. This standard does not apply to the classification of defects such as cracks, insufficient pouring, eccentricity, cold insulation and surface irregularities.2 Normative referencesThe following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 5611 casting terminology GB/T 5677 steel casting radiographic inspection GB/T 9445 Non-destructive testing personnel qualification and certification GB/T 12604.2 Non-destructive testing term radiographic inspection3 Terms and definitionsThe following terms and definitions as defined in GB/T 5611 and GB/T 12604.2 apply to this document. 3.1 Inclusion foreignmaterials A particle located in or on the surface of the casting that is different from the base metal composition. Note. Inclusions appear on the film as isolated, irregular or long strips of different film blackness. Including slag, sand, paint layer, oxide, sulfide, silicic acid Salt and so on. 3.2 Stomatal gasholes Hole-like defects formed by gas in the casting. Note. The stomata appear as round or long strips on the film, with dark spots with smooth edges, present in single or in groups, or throughout the casting. The surface is smooth, mainly Pear-shaped, round and oval. Generally not exposed on the surface of the casting, large holes are often isolated, and small holes appear in groups. 3.3 Pinhole gasporosity The size of the needle is distributed over the cross section of the casting. Note. The pinholes appear on the backsheet in the form of round or strip black spots distributed throughout the casting. 3.4 Loose shrinkage Very small holes in the slow solidification zone of the casting. Note. Looseness appears on the film in a localized darker area of localized floc or honeycomb. Distributed between dendrites and dendrites, is a diffuse pore, microscopic Shrinkage and organization of coarse mixing defects reduce the compactness of the casting. 3.5 Shrinkage shrinkagecavity Holes in the casting during the solidification process due to poor shrinkage. Note. The shrinkage cavities appear in the dendrites, fibers or jagged dark areas on the film. Very irregular shape, rough wall and dendritic crystals, often found in castings The site of the final solidification.4 personnel requirementsPersonnel performing the assessment of test results shall be qualified and certified according to GB/T 9445 or equivalent standards, and the test phase shall be obtained. Level 2 or higher qualification certificates for industrial categories.5 film requirementsThe film should meet the requirements of GB/T 5677. The film shall be inspected for conformity before the evaluation, and the unqualified film shall be re-made.6 defect classification6.1 Common defects in casting ray inspection are pores, pinholes (round), pinholes (long), shrinkage holes, loose, inclusions (high density), inclusions (low density) and so on. 6.2 According to different casting thickness, pores, pinholes (circles), pinholes (long), loose, inclusions (high density), inclusions (low density) The negative reference film is divided into two groups, A and B. The shrinkage defect film is listed in group A, as shown in Table 1. Note. The thickness of the standard of Group A is 6mm, and the thickness of the standard of Group B is 20mm. 6.3 Each type of defect is divided into 8 levels, and the defective graded film is shown in Appendix A. In Appendix A, the defect reference negatives at all levels are 50mm × 50mm.7 rating7.1 Compare the film to be evaluated with the specified reference film. The areas with the most severe defects on the radiographic film of the casting were taken for evaluation. 7.2 The size of the assessment area is 50mm × 50mm. 7.3 When the defect displayed on the film to be assessed is between two adjacent levels, it is rated according to the severity level. 7.4 The pores, inclusions and shrinkage cavities in the same assessment area shall be rated according to the size, quantity and distribution of defects. The cumulative area of the trap is used to assess the defect level.8 Assessment recordThe assessment record shall include at least the casting drawing number, the film number, the assessment result, the signature of the assessor and the date of assessment. Table 1 Reference film defect types and grouping ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 11346-2018_English be delivered?Answer: Upon your order, we will start to translate GB/T 11346-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 11346-2018_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 11346-2018_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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