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GB/T 34494-2017 English PDF

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US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 34494-2017: Hydrogen decrepitation neodymium iron boron permanent magnetic powder
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 34494-2017	199	Add to Cart	3 days	Hydrogen decrepitation neodymium iron boron permanent magnetic powder	Valid

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Basic data

Standard ID: GB/T 34494-2017 (GB/T34494-2017)
Description (Translated English): Hydrogen decrepitation neodymium iron boron permanent magnetic powder
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H65
Classification of International Standard: 77.120.99
Word Count Estimation: 10,196
Date of Issue: 2017-10-14
Date of Implementation: 2018-05-01
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 34494-2017: Hydrogen decrepitation neodymium iron boron permanent magnetic 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.
Hydrogen decrepitation neodymium iron boron permanent magnetic powder ICS 77.120.99 H65 National Standards of People's Republic of China Broken NdFeB permanent magnet powder 2017-10-14 Published 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard by the National Rare Earth Standardization Technical Committee (SAC/TC229) and focal point. This standard was drafted unit. Inner Mongolia Baotou Steel Rare Earth Magnetic Materials Co., Ltd., Baotou Rare Earth Research Institute, Bayan Ebo Rare Earth Resources Research State Key Laboratory of Research and Comprehensive Utilization, Beijing Zhong Ke San Huan High-tech Co., Ltd., Anhui Dadi Xiong Xin Material Co., Ltd. The main drafters of this standard.Dong Donghua, Liu Guozheng, Cui Guoxuan, Su Manyou, Wang Yuping, Wang right, Fengxiang Dong, Xie Ping, Jin Guoshun, Zhu Minggang, Huang Xiulian, Shen Guodi. Broken NdFeB permanent magnet powder

1 Scope

This standard specifies the requirements of the hydrogen crushed NdFeB permanent magnet powder, test methods, inspection rules and signs, packaging, transportation, storage and quality certificate Ming book. This standard applies to the production of powder metallurgy NdFeB permanent magnetic powder for the production of sintered NdFeB magnets.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 223.82 steel hydrogen content Determination of inert gas pulse melting heat conduction method GB/T 8170 rounded repair rules and limit values of the representation and judgment GB/T 20170.1 rare earth metals and their compounds - Determination of physical properties - Particle size distribution of rare earth compounds GB/T 29655 NdFeB quick-setting flake alloy XB/T 617.1 Methods for chemical analysis of neodymium iron boron alloys - Part 1. Determination of total rare earths Oxalate gravimetric method XB/T 617.7 Methods for chemical analysis of neodymium iron boron alloys - Part 7. Determination of oxygen and nitrogen content Pulsed-infrared absorption method and pulse-heat Guide method

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 NdFeB quick-setting flake alloy under certain pressure through hydrogen-dehydrogenation reaction and crushed to form a powder.

4 categories and grades

4.1 Product Classification According to the total amount of rare earth and hydrogen content is divided into three grades, respectively, H-NdFeB30/9, H-NdFeB33/13, H-NdFeB39/15. 4.2 brand representation Halogenated NdFeB permanent magnetic powder grades from the product category, product symbols, product technical parameters of three parts. the first Part H, said the product category, is the "hydrogen" English "Hydrogendecrepitation" the first letter of the second part of the NdFeB, the table The symbol of the product is shown as the chemical symbol Nd of neodymium element, the chemical symbol Fe of iron element and the chemical symbol B of boron element. The third part The figure before slashes is the maximum value of mass fraction of rare earth elements of hydrogenated NdFeB permanent magnet powder [mass fraction (%)]; the figure after slash is The maximum hydrogen content [mass fraction (%)] of hydrogenated NdFeB permanent magnet powder 100 times. The three parts are connected by dash. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 34494-2017_English be delivered?

Answer: Upon your order, we will start to translate GB/T 34494-2017_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 34494-2017_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 34494-2017_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.