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    BS EN 13236-2010 Safety requirements for superabrasive products《超级磨料产品的安全性要求》.pdf

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    BS EN 13236-2010 Safety requirements for superabrasive products《超级磨料产品的安全性要求》.pdf

    1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13236:2010Safety requirements forsuperabrasive productsLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 30/03/2011 03:22, Uncontrolled Copy, (c) BSIBS EN 13236:2010 B

    2、RITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13236:2010. Itsupersedes BS EN 13236:2001 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MTE/13, Grinding wheels, abrasive tools, paper andcloths, and powders.A list o

    3、f organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 64438 2ICS 25.100.70Compliance with a British Stan

    4、dard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2010.Amendments issued since publicationDate Text affectedLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 30/03/2011 03:22, Un

    5、controlled Copy, (c) BSIBS EN 13236:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13236 November 2010 ICS 25.100.70 Supersedes EN 13236:2001English Version Safety requirements for superabrasive products Prescriptions de scurit pour les produits superabrasifs Sicherheitsanforderungen fr Sc

    6、hleifwerkzeuge mit Diamant oder Bornitrid This European Standard was approved by CEN on 16 October 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration

    7、. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translati

    8、on under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, G

    9、ermany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORM

    10、UNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13236:2010: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 30/03/2011 03:22, Uncontrolled Copy, (c) BSIBS EN 132

    11、36:2010EN 13236:2010 (E) 2 Contents Page Foreword 4Introduction . 61 Scope 72 Normative references 73 Terms, definitions and symbols . 73.1 General 73.2 Grinding machines 73.3 Grinding method 83.4 Type of application 83.5 Symbols 103.6 Other symbols 114 List of significant hazards 115 Safety require

    12、ments 115.1 General requirements 115.2 Requirements for precision superabrasive grinding and cutting-off wheels . 125.3 Requirements for non-precision cutting-off wheels 135.4 Requirements for diamond wires . 205.5 Requirements for mounted points . 215.6 Requirements for other superabrasive products

    13、 for non-precision grinding . 215.7 Marking . 226 Verification of the safety requirements . 226.1 Verification of the general requirements . 226.2 Verification of the strength requirements . 236.3 Verification of marking 286.4 Verification of the requirements for blotters 287 Information for use 28A

    14、nnex A (normative) Marking 30A.1 Content of the marking . 30A.2 Execution of the marking 33Annex B (normative) Colour codes . 34Annex C (informative) Mounted points . 35C.1 Example of calculation of the maximum permissible speed of rotation 35C.2 Example for the application of the calculation method

    15、 . 38Annex D (normative) Reconditioning of cutting-off wheels according to 5.3.6.4 42D.1 Preconditions for reconditioning . 42D.2 Additional marking requirements 43Annex E (informative) Speed conversion table 44Bibliography 47Figures Figure 1 Position of cuts and openings in steel blanks . 17Figure

    16、2 Example of cut-outs and openings . 18Figure 3 Segmented cutting-off wheels: Dimensions of segment height X1. 23Figure 4 Example of a bending test device for segmented cutting-off wheels . 24Figure 5 Cutting-off wheels with continuous rim: Dimensions of segment height X125Licensed Copy: Wang Bin, I

    17、SO/EXCHANGE CHINA STANDARDS, 30/03/2011 03:22, Uncontrolled Copy, (c) BSIBS EN 13236:2010EN 13236:2010 (E) 3 Figure 6 Example of a bending test device for cutting-off wheels with continuous rim 25Figure 7 Example of a shearing force test device 26Figure 8 Example of the test piece . 28Figure 9 Examp

    18、le of a tensile test 28Figure C.1 Volume division for mounted points with reduced spindle (ZYA) . 36Tables Table 1 Grinding method, type of machine, type of application . 9Table 2 Symbols . 10Table 3 Other symbols . 11Table 4 List of significant hazards . 11Table 5 Safety factors for precision super

    19、abrasive grinding and cutting-off wheels 12Table 6 Maximum operating speeds as a function of the bond type 13Table 7 Safety factors for non-precision cutting-off wheels . 14Table 8 Maximum operating speeds as a function of the bond type 14Table 9 Dimensions of blanks for dry cutting-off . 15Table 10

    20、 Dimensions of blanks for wet cutting-off . 16Table 11 Bending strength bfor cutting-off wheels for the use on hand-held cutting-off machines depending on segment height X1and segment length L2. 19Table 12 Minimum bending moment Mb19Table 13 Safety factors for other superabrasive products for non-pr

    21、ecision grinding 21Table 14 Maximum operating speeds as a function of the bond type 22Table A.1 Marking of superabrasive products 30Table A.2 Restrictions of use (RE) . 32Table B.1 Colour codes and design of colour codes . 34Table C.1 Designation of the calculation quantities . 37Table C.2 Designati

    22、on of mounted points . 38Table C.3 Characteristics for the calculation of maximum speeds of rotation . 39Table C.4 Mounted points, cylindrical shape, plain spindles (ZYN) vitrified bond (V) . 40Table C.5 Mounted points, cylindrical shape, reduced spindles (ZYA), vitrified bond (V) . 40Table C.6 Moun

    23、ted points, cylindrical shape, plain spindle Schaft (ZYN), electroplated bond (G) 41Table E.1 Speed conversion . 44Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 30/03/2011 03:22, Uncontrolled Copy, (c) BSIBS EN 13236:2010EN 13236:2010 (E) 4 Foreword This document (EN 13236:2010) has been pr

    24、epared by Technical Committee CEN/TC 143 “Machine tools - Safety”, the secretariat of which is held by SNV. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2011, and conflicting national stand

    25、ards shall be withdrawn at the latest by November 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. The provisions of this Europea

    26、n Standard need not to be mandatory to superabrasive products manufactured the first 12 months after publication of this European Standard. This document supersedes EN 13236:2001. Significant changes against EN 13236:2001 are as follows: a) The standard was technically and editorially revised and pa

    27、rtly adapted to EN 12413:2007 about bonded abrasive products and EN 13743:2009 about coated abrasive products; b) the term “burst speed factor“ was included in Table 2, Table 5, Table 7 and Table 13; c) in the requirements it is now distinguished between precision and non-precision cutting-off wheel

    28、s; d) new 5.3.5.3 defines restrictions in design and position of cuts and openings in the metal blank of cutting-off wheels for hand-held applications; e) changed 5.3.6.2 on dimensional limitations and bending moment for segmented non-precision cutting-off wheels for hand-held applications, with req

    29、uirements now depending on segment height and segment length; f) requirements for reconditioned non-precision cutting-off wheels were included in new 5.3.6.4 and new normative Annex D; g) Clause 6 was shortened to verification of safety requirements. The scope of inspection and testing has been dele

    30、ted because it is the responsibility of the manufacturer to put in place respective test procedures that give them the confidence that all safety requirements defined in this standard are respected. h) the requirements for colour code stripes were deleted in Annex A and are now presented in new Anne

    31、x B; i) Table A.3 and Table A.4 about restrictions for use were combined to one table and thereby adapted to EN 12413 and EN 13743; j) Clause A.2 about execution of the marking was simplified; k) Annex B about blotters was deleted and part of its content was included in 5.2.5; l) Annex C about mount

    32、ed points was completely revised and shortened; m) Annex D with the speed conversion table (now Annex E) was editorially revised and maximum operating speeds above 320 m/s were deleted; Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 30/03/2011 03:22, Uncontrolled Copy, (c) BSIBS EN 13236:201

    33、0EN 13236:2010 (E) 5 n) Annex E about shapes and dimensions of grinding wheels and cutting-off wheels had become obsolete with publication of ISO 6104 and was therefore deleted; o) Annex F about grain sizes and concentration for diamond and cubic boron nitride had become obsolete with publication of

    34、 ISO 6106 and was therefore deleted. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germa

    35、ny, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 30/03/2011 03:22, Uncontrolled Copy, (c) B

    36、SIBS EN 13236:2010EN 13236:2010 (E) 6 Introduction This European Standard has been prepared to provide one means of conforming with essential safety requirements, e.g. of the General Product Safety Directive and associated EFTA regulations. This European Standard is addressed to designers, manufactu

    37、rers and suppliers of the superabrasive products described in the scope as well as to those who are reconditioning superabrasive cutting-off wheels. In addition, it helps designers, manufacturers and suppliers of grinding machines in the selection of superabrasive products, in order to reduce the ri

    38、sks and achieve conformity of the respective machinery with the Essential Safety Requirements of the Machinery Directive. The extent to which hazards are covered is indicated in the scope of this European Standard. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 30/03/2011 03:22, Uncontrolled

    39、 Copy, (c) BSIBS EN 13236:2010EN 13236:2010 (E) 7 1 Scope This European Standard is applicable to the following superabrasive products: precision superabrasive grinding and cutting-off wheels, non-precision cutting-off wheels, diamond wires, mounted points and other superabrasive products for non-pr

    40、ecision grinding. It also applies to reconditioned superabrasive cutting-off wheels. This European Standard specifies requirements and/or measures for the removal or reduction of hazards resulting from the design and application of the superabrasive products. This European Standard contains also pro

    41、cedures and tests for verification of the compliance with the requirements as well as safety information for use which is to be made available to the user by the manufacturer. The hazards taken into consideration are listed in Clause 4. This European Standard does not apply to bonded abrasive produc

    42、ts, coated abrasive products, rotating dressing tools, truers nor any non-rotating superabrasive products. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, t

    43、he latest edition of the referenced document (including any amendments) applies. EN ISO 286-2:2010, Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts (ISO 286-2:2010) ISO 2291

    44、7, Superabrasives Limit deviations and run-out tolerances for grinding wheels with diamond or cubic boron nitride 3 Terms, definitions and symbols For the purposes of this document the following terms and definitions apply. 3.1 General 3.1.1 superabrasive product abrasive product containing natural

    45、or synthetic diamond or cubic boron nitride in a bond 3.2 Grinding machines 3.2.1 stationary grinding machine grinding machine being fixed in position during operation NOTE See for example EN 13218. 3.2.2 mobile grinding machine grinding machine not being fixed in position during operation NOTE Mobi

    46、le grinding machines are manually guided (but not supported) by hand during use, e.g. floor grinding machines. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 30/03/2011 03:22, Uncontrolled Copy, (c) BSIBS EN 13236:2010EN 13236:2010 (E) 8 3.2.3 hand-held grinding machine grinding machine bein

    47、g held in the hand during the grinding process NOTE See for example EN 792-7, EN 792-9, EN 60745-2-3 and EN ISO 19432. 3.2.4 grinding machine with totally enclosed working area stationary grinding machine being protected in such a way by separating guards that machining processes including loading a

    48、nd unloading of workpieces are carried out inside them and persons are protected against hazards generated by bursting of an abrasive product 3.3 Grinding method 3.3.1 peripheral grinding grinding with the periphery of the wheel with no or limited side loads 3.3.2 face grinding grinding with the fac

    49、e of the wheel 3.3.3 cutting-off slotting with the periphery of the cutting-off wheel 3.4 Type of application See Table 1. 3.4.1 mechanically guided grinding grinding process with feed movements of the abrasive product and/or workpiece guided by mechanical means 3.4.2 manually guided grinding grinding pro


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