GB/T 25717-2021 English PDF

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GB/T 25717-2021: Hot chamber die casting machines for magnesium alloys
Status: Valid

GB/T 25717: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25717-2021	209	Add to Cart	3 days	Hot chamber die casting machines for magnesium alloys	Valid
GB/T 25717-2010	559	Add to Cart	3 days	Hot chamber die casting machines for magnesium alloys	Obsolete

Similar standards

GB/T 39957   GB/T 37371   GB/T 37365   GB/T 25715   GB/T 25711   

Basic data

Standard ID: GB/T 25717-2021 (GB/T25717-2021)
Description (Translated English): Hot chamber die casting machines for magnesium alloys
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J61
Word Count Estimation: 10,199
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 25717-2021: Hot chamber die casting machines for magnesium alloys

---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.
Hot chamber die casting machines for magnesium alloys ICS 25:120:30 CCSJ61 National Standards of People's Republic of China Replacing GB/T 25717-2010 Magnesium Alloy Hot Chamber Die Casting Machine Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration

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 replaces GB/T 25717-2010 "Magnesium Alloy Hot Chamber Die Casting Machine": Compared with GB/T 25717-2010, except for structural adjustment and In addition to editorial changes, the main technical changes are as follows: --- Added the terms and definitions defined by citing JB/T 6309:1 and GB/T 21269-2018, and deleted "ejection force" and "ejection line" terms and Definitions (see Chapter 3, Chapter 3 of the:2010 edition); --- Changed Table 1, deleted two items of stroke from the nozzle, system working pressure, added two parameters of furnace capacity and melting rate (see Table 1, Table 1 of the:2010 edition); --- Added the requirement of "Medium used by die casting machine" (see 5:1:2); --- Changed the requirements for "lubrication system of die casting machine" (see 5:1:6, 5:1:6 of the:2010 edition); --- Changed the requirements for "precision of die casting machine" (see 5:2, 5:2 of the:2010 edition); --- Changed the requirements of "machine noise" (see 5:5, 5:6 of the:2010 edition); --- Changed the relevant clauses of "Security Requirements" (see 5:6, 5:7 of the:2010 edition); --- Changed the "requirements for heat-resistant parts" (see 5:8); --- Changed the "dry running requirements" (see 5:10, 5:11 of the:2010 edition); --- Changed the "load operation requirements" (see 5:11); --- Added "energy consumption index requirements" (see 5:12); --- Changed the requirements of "appearance quality of the whole machine" (see 5:13, 5:3 of the:2010 edition); --- Added "Regular Item Detection" (see 6:1); --- Changed the detailed description of "Clamping Force Detection Item" (see 6:1:2, 6:2 of the:2010 edition); --- Delete the parallelism detection of the movable mold mounting plate and the fixed mold mounting plate, and the parallelism detection of the tie rods (see 6:9 of the:2010 edition, 6:10); --- Added "Accuracy Detection" (see 6:2); --- Delete "system leakage detection" and "system pressure detection" for hydraulic system detection (see 6:7:2, 6:7:3 of the:2010 edition); --- Added the "Energy Consumption Detection" method (see 6:8); --- Added "Testing of heat-resistant parts" (see 6:10); --- Added "Dry running detection" (see 6:11); --- Added "detection of load operation" (see 6:12); --- Deleted "simple packaging or no packaging according to contract requirements" (see 8:4 of the:2010 edition): 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 by China Machinery Industry Federation: This document is under the jurisdiction of the National Standardization Technical Committee of Foundry Machinery (SAC/TC186): This document is drafted by: Shenzhen Lingwei Technology Co:, Ltd:, Shenzhen Dingzhengxin Technology Co:, Ltd:, Shanghai Yida Machinery Co:, Ltd:, Ningbo Lijin Technology Co:, Ltd:, General Research Institute of Mechanical Science (Jiangle) Semi-Solid State Technology Research Institute Co:, Ltd:, Jiafeng Industrial Technology (Huizhou) have Co:, Ltd:, Jinan Casting and Forging Institute Inspection and Testing Technology Co:, Ltd:, National Plastic Machinery Product Quality Supervision and Inspection Center, Guangdong Province Standardization Research College, Shenzhen Vocational and Technical College: The main drafters of this document: Liu Zhuoming, Pan Lingling, Shuai Huayuan, Xu Niansheng, Cui Bo, Hu Zaoren, Zhang Jun, Huang Jiehua, Li Yuanfa, Lu Jun, Zhou Gang, Guo Yiping, Gu Weixin, Huang Chunsheng, Liao Qianghua, Zhou Min, You Luanzhao, Liang Shujie, Li Chen: The previous versions of this document and its superseded documents are as follows: ---First published in:2010 as GB/T 25717-2010; ---This is the first revision: Magnesium Alloy Hot Chamber Die Casting Machine

1 Scope

This document specifies the basic parameters, technical requirements, test methods, inspection rules, as well as marking, packaging, and transportation of magnesium alloy hot chamber die casting machines: and storage: This document applies to hot chamber die casting machines (hereinafter referred to as "die casting machines") for the production of magnesium alloy die castings:

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 191 Graphical signs of packaging, storage and transportation GB 2893 Safety Color GB 2894 Safety Signs and Guidelines for their Use GB/T 3766 General rules and safety requirements for hydraulic transmission systems and their components GB 5083 General Rules for Safety and Hygiene Design of Production Equipment GB/T 5226:1-2019 Mechanical and Electrical Safety Mechanical and Electrical Equipment Part 1: General Specifications GB/T 7932 General rules and safety requirements for pneumatic systems and their components GB/T 7935 General Specifications for Hydraulic Components GB/T 9969 General Principles of Instruction Manual for Industrial Products GB/T 13306 Signs GB/T 13384 General technical conditions for packaging of mechanical and electrical products GB 20906-2007 Safety technical requirements for die-casting units GB/T 21269-2018 Cold chamber die casting machine GB/T 25371 Foundry machinery noise sound pressure level measurement method GB/T 31562-2015 Determination method of foundry machinery cleanliness GB/T 39962-2021 Energy efficiency limit value and energy efficiency grade of die casting machine JB/T 6309:1 Hot Chamber Die Casting Machine Part 1: Basic Parameters JB/T 6309:2 Hot Chamber Die Casting Machine Part 2: Accuracy Inspection JB/T 6309:3-2015 Hot Chamber Die Casting Machine Part 3: Technical Conditions JB/T 8356 Machine Tool Packaging Specifications

3 Terms and Definitions

Terms and definitions defined in JB/T 6309:1 and GB/T 21269-2018 apply to this document: ......

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Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 25717-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.