GB/T 12796.2-2012 English PDF

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GB/T 12796.2-2012: Permanent ferrite magnets -- Part 2: Sectional specification for permanent ferrite magnets for use in micromotors
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 12796.2-2012	189	Add to Cart	3 days	Permanent ferrite magnets -- Part 2: Sectional specification for permanent ferrite magnets for use in micromotors	Valid

Similar standards

GB/Z 40842   GB/T 36103.1   SJ/T 10410   GB/T 43795   GB/T 43870.1   GB/T 12796.1   

Basic data

Standard ID: GB/T 12796.2-2012 (GB/T12796.2-2012)
Description (Translated English): Permanent ferrite magnets -- Part 2: Sectional specification for permanent ferrite magnets for use in micromotors
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L19
Classification of International Standard: 29.100.10
Word Count Estimation: 8,850
Older Standard (superseded by this standard): GB/T 12797-1991
Quoted Standard: GB/T 1958-2004; GB/T 10610; GB/T 12796.1-2012; SJ/T 10742; SJ/T 11247
Regulation (derived from): National Standards Bulletin 2012 No. 41
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
Summary: This standard specifies the micro-motor with permanent ferrite sintered magnet (hereinafter referred to as " magnet ") performance and test requirements. And from GB/T 12796. 1-2012 is selected for detailed specification test methods. This section applies

GB/T 12796.2-2012: Permanent ferrite magnets -- Part 2: Sectional specification for permanent ferrite magnets for use in micromotors

---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.
ICS29.100.10 L19 National Standards of People's Republic of China Replacing GB/T 12797-1991 Permanent ferrite magnets Part 2. Micro-motor with permanent ferrite magnets Specification Part 2. Sectionalspecificationforpermanentferrite Issued on. 2013-06-01 2012-12-31 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 12796 "permanent ferrite magnets" is divided into the following sections. --- Part 1. Generic specification; --- Part 2. Micro-motor specification for permanent ferrite magnets. This is Part 2 GB/T 12796 in. Rules in this section in accordance with GB/T 1.1-2009 given draft. This Part replaces GB/T 12797-1991 "micro-motor specification for permanent ferrite magnets." This section compared with GB/T 12797-1991, the following changes. --- Increasing the magnet surface roughness, geometric tolerances and appearance requirements and test methods, and in the identification of inspection and quality conformance inspection Experiments increase the corresponding test items (see Chapter 4); --- Increasing the temperature coefficient of the residual magnetic flux density αBr, methods of measurement in the temperature coefficient of intrinsic coercivity αHCJ (see 4.2.3); --- Standard standard name and number have been adjusted; --- Edit the format re-adjusted. This part is proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This part of the National Magnetic components and ferrite materials Standardization Technical Committee (SAC/TC89) centralized. This section drafted by. Yi Bin Jinchuan Electronics Co., Ltd. The main drafters of this section. Liliang Jun, Wang, Xu Xiaoli, Huang Jialin, Pengshu Tang. This part of the standard replaces the previous editions are. --- GB/T 12797-1991. Permanent ferrite magnets Part 2. Micro-motor with permanent ferrite magnets Specification

1 Scope

This section GB/T 12796 requirements of micro motor with permanent ferrite sintered magnet (hereinafter referred to as "magnet") to test the performance and Beg. And select the test methods suitable for detailed specifications from GB/T 12796.1-2012 in. This section applies to a variety of micro-motor with a ring, tile and other shaped magnet.

2 Normative references

The following documents for the application of this document is more than essential. For dated references, only the dated edition applies to this article Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 1958-2004 Geometrical Product Specifications (GPS) shape and position tolerance testing requirements GB/T 10610 Geometrical Product Specifications Surface texture Profile method - Rules and procedures for evaluation of the surface structure GB/T 12796.1-2012 permanent ferrite magnets - Part 1. Generic specification SJ/T10742 electronic ceramic parts tolerance SJ/T11247 permanent ferrite tile-shaped magnets tolerances and shape defects

3 Classification and requirements

3.1 Classification Magnets are classified according to the following provisions. a) shape, such as a ring magnet, tile-shaped magnets; b) size, for example. H85 × 45 × 10, CW52 × 44 × 29; c) material category or level. Typically, the detail specification shall be one shape, one category or grade magnets. Note. Because no complete material category or level requirements, so each detail specification shall specify the materials used categories or levels. 3.2 Requirements The detail specification shall prepared in accordance with this section and shall comply with the appropriate blank detail specification requirements. The magnet structure, dimensions, surface roughness, magnetic materials and magnets and magnet mechanical and environmental resistance should be detailed Fine predetermined specifications, and meet the following requirements. a) are not magnet NOTE dimensional tolerances and geometric tolerances shall comply with SJ/T10742 of; b) allowing the magnet leakage grinding, but the size of the magnet should be within their tolerance range; c) Unless otherwise specified, the appearance of the magnet should be consistent with the provisions of a detailed specification, and meet the following requirements. 1) magnet cosmetic defects (loose debris, residue or attachment surface, off-chip, cracks and other defects) does not affect the meet The minimum required magnetic performance micro-motor electric energy requirements; ......

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