GB/T 5246-2023 English PDF

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GB/T 5246-2023: Electrolytic copper powder
Status: Valid

GB/T 5246: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 5246-2023	189	Add to Cart	3 days	Electrolytic copper powder	Valid
GB/T 5246-2007	679	Add to Cart	4 days	Electrolytic copper powder	Obsolete
GB/T 5246-1985	479	Add to Cart	4 days	Electrolytic copper powder	Obsolete

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Basic data

Standard ID: GB/T 5246-2023 (GB/T5246-2023)
Description (Translated English): Electrolytic copper powder
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H62
Classification of International Standard: 77.150.30
Word Count Estimation: 10,174
Date of Issue: 2023-08-06
Date of Implementation: 2024-03-01
Older Standard (superseded by this standard): GB/T 5246-2007
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 5246-2023: Electrolytic copper powder

---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.
ICS 77.150.30 CCSH62 National Standards of People's Republic of China Replace GB/T 5246-2007 electrolytic copper powder Published on 2023-08-06 2024-03-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee

Foreword

This document complies with the regulations of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents" Custom drafting. This document replaces GB/T 5246-2007 "Electrolytic Copper Powder". Compared with GB/T 5246-2007, except for structural adjustments and editorial changes In addition, the main technical changes are as follows. a) Changed the expression method of brand names, "FTD1, FTD2, FTD3, FTD4, FTD5" were changed to "FTD75, FTD48, FTD75d, FTD180, FTD48d", adding three grades of FTD38, FTD18 and FTD10 (see 4.1,.2007 edition 3.1); b) Added product marking (see 4.2); c) The composition content of electrolytic copper powder has been changed, "ignition residue after nitric acid treatment" has been changed to "nitric acid insoluble matter", As, Sb, Bi, Ni, Sn, Zn, and S are included in the "total of other impurity elements", the Cl- impurity content requirement is deleted, and the "total of other impurity elements" is added. Footnotes for "sum" and "total impurities" (see 5.1, 3.2 of the.2007 edition); d) The index values of particle size distribution, mass fraction and bulk density of electrolytic copper powder have been changed, and the table notes on the physical properties of electrolytic copper powder have been deleted. (See 5.2, 3.3 of the.2007 edition); e) The micromorphology of electrolytic copper powder has been deleted (see 3.4 of the.2007 edition); f) Change "apparent quality" to "appearance quality" (see 5.3, 3.5 of the.2007 version); g) Added the method for measuring particle size distribution of FTD18 and FTD10 products, changed the method for measuring oxygen content and moisture, and deleted the words "oxygen content, moisture content or according to the method approved by both supply and demand parties", delete the measurement method of chloride ions, delete the micro Determination method of visual appearance (see Chapter 6, Chapter 4 of the.2007 edition); h) Appendix A, Appendix B and Appendix C are deleted (see Appendix A, Appendix B and Appendix C of the.2007 version); i) Changes to inspection, acceptance, and batching rules (see 7.1, 7.2, 5.1, 5.2 of the.2007 version); j) Added provisions for numerical rounding (see 7.5.1); k) Changes in marking, packaging and transportation rules (see 8.1~8.3, 6.1 of the.2007 edition); l) The maximum storage temperature of the product has been changed from "not greater than 25℃" to "not greater than 35℃", and "electrolytic copper powder has been shipped from the factory" has been added. "The quality shelf life shall be no less than 6 months from the date" (see 8.4, 6.2 of the.2007 version); m) Added related content of accompanying files (see 8.5). Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents. This document is proposed by the China Nonferrous Metals Industry Association. This document is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243). This document was drafted by. Youyan Powder New Materials Co., Ltd., Youyan Powder New Materials (Hefei) Co., Ltd., Chongqing Youyan Heavy Metallurgy New Materials Co., Ltd., Beijing Youyan Powder New Materials Research Institute Co., Ltd., Jinchuan Group Co., Ltd. The main drafters of this document. Wang Limin, Wang Linshan, Hu Qiang, Li Zhanrong, Liu Xiangqing, Chen Lin, Bai Jie, Zhang Jingguo, Wang Zhong, Zhang Xu, Yang Shuxia. This document was first published in 1985, revised for the first time in.2007, and this is the second revision. electrolytic copper powder

1 Scope

This document stipulates the classification and labeling, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and follow-up of electrolytic copper powder. line documents and order form contents. This document applies to electrolytic copper powder produced by copper sulfate solution electrolysis. It is mainly used for powder metallurgy parts, diamond products, electric carbon products, Electrical alloys, electronic materials, friction materials and chemical catalysts, etc.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document. GB/T 1479.1 Determination of bulk density of metal powders Part 1.Funnel method GB/T 1480 Metal powder dry screening method for particle size determination GB/T 5121 (all parts) Chemical analysis methods for copper and copper alloys GB/T 5314 Powder sampling method for powder metallurgy GB/T 6283 Determination of moisture content in chemical products Karl Fischer method (general method) GB/T 8170 Numerical rounding rules and representation and determination of limit values GB/T 19077 Laser diffraction method for particle size analysis YS/T 1230.4 Chemical analysis method of anode copper Part 4.Determination of oxygen content by pulsed infrared method

3 Terms and definitions

There are no terms or definitions to be defined in this document.

4 Classification and tagging

4.1 Product classification Electrolytic copper powder is divided into FTD180, FTD75, FTD75d, FTD48, FTD48d, FTD38, There are eight grades of FTD18 and FTD10. Note. In the brand designation, "FTD" is the code name of electrolytic copper powder, and the Arabic numerals represent the powder particle size (such as. 75, which means that more than 90% of the powder particle size is smaller than 75μm). "d" represents powders with the same particle size and low bulk density. 4.2 Product marking Product markings are expressed in the order of product name, file number, and brand number. Example. Electrolytic copper powder that conforms to this document has a powder particle size of 75 μm (more than 90% of the powder particle size is less than 75 μm) and is marked as. Electrolytic copper powder GB/T 5246-FTD75 ......

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