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GB/T 41104.3-2021 English PDF

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US$289.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 41104.3-2021: Solder wire, solid and flux cored - Specifications and test methods - Part 3: Wetting balance test method for flux cored solder wire efficacy
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 41104.3-2021	289	Add to Cart	3 days	Solder wire, solid and flux cored - Specifications and test methods - Part 3: Wetting balance test method for flux cored solder wire efficacy	Valid

Similar standards

GB/T 41116 GB/T 40801 GB/T 41112 GB/T 41107.1 GB/T 41107.2 GB/T 41104.2

Basic data

Standard ID: GB/T 41104.3-2021 (GB/T41104.3-2021)
Description (Translated English): Solder wire, solid and flux cored - Specifications and test methods - Part 3: Wetting balance test method for flux cored solder wire efficacy
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J33
Word Count Estimation: 14,155
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41104.3-2021: Solder wire, solid and flux cored - Specifications and test methods - Part 3: Wetting balance test method for flux cored solder wire efficacy

---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.
Solder wire, solid and flux cored -- Specifications and test methods -- Part 3: Wetting balance test method for flux cored solder wire efficacy ICS 25:160:50 CCSJ33 National Standards of People's Republic of China Specification and test methods for solid and flux cored solder wires Part 3: Wetting balance for the efficacy of flux-cored solder wires experiment method (ISO 12224-3:2003, MOD) Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Principle 1 5 Reagent 1 6 Instruments and Materials 2 7 Test Step 4 8 Description of test data 5 9 Test data processing 6 10 Test report 7 Appendix A (informative) Changes in the structure of this document compared to ISO 12224-3:20038 Appendix B (normative) Technical requirements for wetting balance test system 9 Reference 10

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted: This document is part 3 of GB/T 41104 "Specification and Test Methods for Solid and Flux Core Soldering Wires", GB/T 41104 has been issued The following parts are distributed: --- Part 1: Classification and performance requirements; --- Part 2: Determination of flux content; --- Part 3: Wetting balance test method for the efficacy of flux-cored solder wire: This document is modified using ISO 12224-3:2003 "Specification and test methods for solid and flux-cored solder wires - Part 3: Flux-cored soldering "Wetting Balance Test Method for Filament Efficacy": Compared with ISO 12224-3:2003, this document has many adjustments in structure: Appendix A lists this document and ISO 12224-3:2003: The chapter number comparison list: The technical differences between this document and ISO 12224-3:2003 and their reasons are as follows: --- Regarding normative reference documents, this document has made adjustments with technical differences to adapt to the technical conditions of our country and the circumstances of the adjustment: The situation is reflected in Chapter 2 "Normative References", and the specific adjustments are as follows: ● Replace IEC 60068-2-54 (see 6:2) with GB/T 2423:32-2008 which is equivalent to the international standard; ● Added reference to GB/T 686 (see 5:1); ● Added reference to HG/T 5344 (see 5:2); ● Deleted the reference to the International Standard ISO 9454-1; ● Removed reference to International Standard ISO 9455-16:1998: --- Added "Appendix B (Normative) Technical Requirements for Wetting Balance Test System" to facilitate the application of the standard: The following editorial changes have been made to this document: --- Added references: Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by the National Welding Standardization Technical Committee (SAC/TC55): This document is drafted by: Harbin Welding Research Institute Co:, Ltd:, Shenzhen Yichengda Industry Co:, Ltd:, Shenzhen Weiteou New Materials Co:, Ltd:, Zhejiang Yatong Welding Materials Co:, Ltd:, Harbin Institute of Technology, Yunnan Tin Industry Tin Materials Co:, Ltd:, North China University of Water Conservancy and Hydropower, CRRC Qingdao Sifang Rolling Stock Co:, Ltd: and Zhengzhou Machinery Research Institute Co:, Ltd: The main drafters of this document: He Peng, Xu Jinhua, Li Weijun, Zhang Lingling, Lv Xiaochun, Qin Junhu, Wang Xingxing, Jiang Chunpeng, Dong Xian, Sun Xiaomei, Su Jinhua:

Introduction

Solid and flux-cored solder wires are used as the base material in the soldering process and have a decisive influence on the quality of soldered joints: The strong foundation project being implemented in my country, the national science and technology major project "core electronic devices, high-end general-purpose chips and basic software products" and The core electronic devices, high-end chips and integrated circuit complete sets of technology in the "Special Project on VLSI Manufacturing Equipment and Complete Sets of Technology" In the research and development of technology, solid and flux-cored solder wires are the key basic materials, and the formulation of standards for their products and test methods is of great significance: Since:2001, my country has successively promulgated and implemented "Tin-Lead Soldering Materials", "Lead-Free Soldering Materials", "Solder Flux Classification and Performance Requirements" and "Solder Soldering Materials": Solid and flux-cored solder wire is an important product in soldering material, and it is reliable for the environment and solder joints: Performance and application are critical: GB/T 41104 "Specification and test methods for solid and flux-cored solder wires" is a general product for solder wires: The standard for products and test methods is intended to consist of the following parts: --- Part 1: Classification and performance requirements; --- Part 2: Determination of flux content; --- Part 3: Wetting balance test method for the efficacy of flux-cored solder wire: This document serves as the standard for test methods for solid and flux-cored solder wires: The wetting balance method is used to determine the efficacy of flux-cored solder wires: The method has the advantages of simple operation, strong applicability, accurate and reliable results, etc:, and has become an important inspection method in flux-cored solder wire products: measuring means: Specification and test methods for solid and flux cored solder wires Part 3: Wetting balance for the efficacy of flux-cored solder wires experiment method

1 Scope

This document specifies the wetting balance test method for determining the efficacy of flux-cored solder wire, including principles, reagents, instruments and materials, test procedures Procedure, test data description, test data processing, test report, etc: This document applies to the flux cored soldering of tin-lead solder alloys specified in GB/T 3131 and lead-free solder alloys specified in GB/T 20422 filament:

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document: GB/T 686 Chemical Reagent Acetone (GB/T 686-2008, ISO 6353-2:1983, NEQ) GB/T 2423:32-2008 Environmental testing of electrical and electronic products - Part 2: Test method test Ta: Wetting weighing method can be welded Sex (IEC 60068-2-54:2006, IDT) HG/T 5344 Chemical reagent 2-butanone (methyl ethyl ketone)

3 Terms and Definitions

There are no terms and definitions that need to be defined in this document:

4 Principles

Immerse the copper test piece and the flux-cored solder wire in the molten solder bath at the same time: Flux test: According to Archimedes' principle, the copper specimen is subjected to buoyancy and different surface tensions between the solder, solder and the interface of the specimen: effect: Record the change data of wetting force and time, calculate the wetting angle θ, wetting speed and overall wetting properties to determine the flux cored solder The effect of silk:

5 Reagents

5:1 Acetone Analytical grade reagents that meet the requirements of GB/T 686: 5:2 Methyl ethyl ketone Analytical grade reagents that meet the requirements of HG/T 5344: ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 41104.3-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 41104.3-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 41104.3-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 41104.3-2021_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. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.