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GB/T 10046-2018: Silver brazing filler metals Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 10046: Historical versions
Similar standardsGB/T 10046-2018: Silver brazing filler metals---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT10046-2018GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 25.160.50 J 33 Replacing GB/T 10046-2008 Silver brazing filler metals (ISO 17672.2016, Brazing - Filler metals, MOD) Issued on. MAY 14, 2018 Implemented on. DECEMBER 01, 2018 Issued by. State Administration for Market Regulation; Standardization Administration of the PRC. Table of ContentsForeword... 4 1 Scope... 7 2 Normative references... 7 3 Model... 8 3.1 Method of model preparation... 8 3.2 Model example... 8 4 Technical requirements... 8 4.1 Product form... 8 4.2 Chemical composition... 9 4.3 Dimensions and tolerances... 13 4.4 Supply status... 15 5 Test methods... 15 5.1 Chemical composition analysis of brazing filler metals... 15 5.2 Mechanical property test of brazed and soldered joint... 15 5.3 Wettability test of brazing filler metals... 15 6 Inspection rules... 16 6.1 Heat number division... 16 6.2 Sampling method... 16 6.3 Acceptance... 16 6.4 Reinspection... 16 7 Packaging, marking, quality certification... 17 7.1 Packaging... 17 7.2 Marking... 17 7.3 Quality certification... 17 Annex A (Informative) Structural changes of this Standard compared with ISO 17672.2016... 18 Annex B (Normative) Determination of silver content... 19 Annex C (Normative) Determination of copper content - Electrolysis- spectrophotometry... 24 Annex D (Normative) Determination of zinc and cadmium content - EDTA titration method... 29 Annex E (Normative) Determination of nickel content... 35 Annex F (Normative) Determination of tin content - Potassium iodate titration method... 43 Annex G (Normative) Determination of lithium content - Atomic absorption spectrometry... 48 Annex H (Normative) Determination of indium content... 52 Annex I (Normative) Determination of aluminum content - Sodium fluoride replacement -EDTA titration method... 59 Annex J (Normative) Determination of manganese content... 63 Annex K (Normative) Inductively coupled plasma atomic emission spectrometry ... 69 Annex L (Informative) Model comparison of brazing filler metals... 79ForewordThis Standard is drafted in accordance with the rules given in GB/T 1.1-2009. This Standard replaces GB/T 10046-2008 "Silver brazing filler metals". Compared with GB/T 10046-2008, the main technical changes are as follows. - Delete the classification table of brazing filler metals (see Clause 3 of the 2008 edition); - ADD the method of preparing the model of brazing filler metals (see Clause 3); - Delete the BAg21CuZnCdSi brazing filler metal in the previous standard; ADD 11 models of brazing filler metals (see 4.2; 4.1 of the 2008 edition); - COMBINE "Technical conditions and chemical composition" into "Technical requirements" (see Clause 4); - DIVIDE "Test methods and inspection rules" into Clause 5 "Test methods" and Clause 6 "Inspection rules" (see Clause 5 and Clause 6; Clause 6 of the 2008 edition); - Adjust and tighten the dimensions and tolerances of brazing filler metals (see 4.3; 5.2 of the 2008 edition). This Standard uses the redraft law to modify and adopt ISO 17672.2016 "Brazing - Filler metals" (English edition). Compared with ISO 17672.2016, this Standard has many adjustments in structure. Annex A lists the comparison table for clause-subclause number of this Standard and ISO 17672.2016. The technical differences between this Standard and ISO 17672.2016 and their reasons are as follows. - As for the normative references, this Standard has made adjustments with technical differences, to adapt to the technical conditions of China. The adjustments are mainly reflected in Clause 2 “Normative references”. The specific adjustments are as follows. Delete the referenced international standards ISO 80000-1.2009 and ISO 3677; ADD reference to GB/T 8170 (see 4.2), GB/T 11363 (see 5.2), and GB/T 11364 (see 5.3) standards. - Delete the composition requirements of other brazing filler metal alloys in Table 5 and Table 7 to Table 13.Other brazing filler metal alloys are not within the scope of this Standard; - Delete the model representation and example of brazing filler metal in Clause 6.They are different from the model preparation method and model example of brazing filler metal in China; - Delete Clause 8 Metal hazards. The hazards of cadmium contained in a small part of the brazing filler metals are common sense; there is no need to list it; - Delete the normative Annex A about the model coding requirements of brazing filler metal. They are different from the model coding requirements of brazing filler metal in China; - ADD Clause 3 Model. Refer to Clause 6 of the international standard for the model representation of brazing filler metals and industry habits, to compile China's model of brazing filler metals; - ADD Clause 5 "Test methods" and Clause 6 "Inspection rules" regarding the test and acceptance requirements of brazing filler metals. The requirements of test methods and inspection rules are an important acceptance basis for product quality; - ADD the normative Annex B ~ Annex K "analysis methods of elements of brazing filler metals". The analysis method of elements of brazing filler metals is an important basis for inspecting alloy elements in brazing filler metal products. This Standard has made the following editorial changes. - CHANGE the standard name to "Silver brazing filler metals"; - ADD an informative Annex L "Model comparison of brazing filler metals", to facilitate the comparison with brazing filler metal products in other relevant standards in application. This Standard was proposed by and shall be under the jurisdiction of National Technical Committee 55 on Welding of Standardization Administration of China (SAC/TC 55). Drafting organizations of this Standard. Hangzhou Huaguang Advanced Welding Materials Co., Ltd., Harbin Welding Institute Co., Ltd., Zhengzhou Research Institute of Mechanical Engineering Co., Ltd., Jinhua Jinzhong Welding Materials Co., Ltd., Changshu Huayin Filler Metals Co., Ltd., Hebei Yuguang Welding Co., Ltd., Shanghai Mick Welding Material Co., Ltd., Zhejiang Seleno Science and Technology Co., Ltd., Zhejiang Asia General Soldering & Brazing Material Co., Ltd., Zhejiang Yinlun Machinery Co., Ltd. Main drafters of this Standard. Lv Xiaochun, Long Weimin, Wang Xiaorong, Luo Huaming, Yang Jingqiu, Gu Liyong, Zheng Hong, Li Jiancheng, Wu Bin, Su Jinhua, Zhang Licheng, Shi Lei, Mai Xiaobo. The previous editions of the standard replaced by this Standard were released as follows. - GB/T 10046-1988, GB/T 10046-2000, GB/T 10046-2008. Silver brazing filler metals1 ScopeThis Standard specifies the requirements such as model, technical requirements, test methods, inspection rules, packaging, marking, quality certification of silver brazing filler metals.2 Normative referencesThe following documents are indispensable for the application of this document. For the dated references, only the editions with the dates indicated are applicable to this document. For the undated references, the latest edition (including all the amendments) are applicable to this document. GB/T 6682 Water for analytical laboratory use - Specification and test methods (GB/T 6682-2008, ISO 3696.1987, MOD) GB/T 8170 Rules of rounding off for numerical values and expression and judgement of limiting values3 ModelSee Annex L for the model comparison between this Standard and other standards. Example of complete model of brazing filler metal in this Standard is as follows.4 Technical requirementsThe chemical composition of brazing filler metals shall meet the requirements of Table 1.The impurity element composition of the brazing filler metal for vacuum brazing or service under vacuum conditions and similar limited conditions shall also meet the requirements of Table 2.5 Test methodsThe mechanical property test of brazed and soldered joints shall be carried out in accordance with GB/T 11363. The wettability test of brazing filler metals shall be carried out in accordance with GB/T 11364.6 Inspection rulesFinished brazing filler metals are inspected by the manufacturer's quality inspection department according to the heat number. During the inspection of each furnace of brazing filler metals, according to the required quantity, representative samples shall be taken from at least three locations. doubled reinspection shall meet the requirements of this item.7 Packaging, marking, quality certificationThe minimum package of each brazing filler metal product shall at least clearly mark the following information. For each furnace of brazing filler metals, the manufacturer shall issue quality certification such as chemical composition, dimensions and appearance. When the user requests, the manufacturer shall provide a copy of inspection results and the recommended brazing process specifications. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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