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1、BRITISH STANDARD BS EN 13236:2001 Incorporating Amendment No. 1 Safety requirements for superabrasives The European Standard EN 13236:2001, with the incorporation of amendment A1:2005, has the status of a British Standard ICS 25.100.70 ? BS EN 13236:2001 This British Standard was published under the
2、 authority of the Standards Policy and Strategy Committee on 15 June 2001 BSI ISBN 0 580 37681 8 National foreword This British Standard is the official English language version of EN 13236:2001, including amendment A1:2005. The start and finish of text introduced or altered by CEN amendment is indi
3、cated in the text by tags !“. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“. The UK participation in its preparation was entrusted to Technical Committee MTE/13, Grinding wheels, abrasive tools, paper and c
4、loths and powders, which has the responsibility to: Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 83 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since
5、 publication Amd. No. DateComments 15691March 2006 See national foreword A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may b
6、e found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are
7、 responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and
8、keep UK interests informed; monitor related international and European developments and promulgate them in the UK. EN 13236 January 2001 + A1 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM March 2005 ICS 25.100.70 English version Safety requirements for superabrasives (includes amendment A1:2005)
9、 Prescriptions de scurit pour les produits superabrasifs (inclut lamendement A1:2005) Sicherheitsanforderungen fr Schleifwerkzeuge mit Diamant oder Bornitrid (enthlt nderung A1:2005) This European Standard was approved by CEN on 5 January 2001. Amendment A1 was approved by CEN on 17 February 2005. C
10、EN 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. Up-to-date lists and bibliographical references concerning such national standards may be obtained on ap
11、plication to the 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 translation under the responsibility of a CEN member into its own language and notified to the Management Centre has th
12、e same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovak
13、ia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CEN All rights of exploitation in any form and by any means reserved worldwide
14、 for CEN national Members. Ref. No. EN 13236:2001 + A1:2005 E Page 2 EN 13236:2001 Contents PagePage Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . 3 0Introduction . . . . . . . . . . . . . . . . . 3 1Scope . . . . . . . . . . . . . . . . . . . . . . 3 2Normative references . . . . . .
15、 . . . . 4 3Definitions and symbols . . . . . . . . 4 3.1Material . . . . . . . . . . . . . . . . . . . . . 4 3.2Grinding machine . . . . . . . . . . . . . . 5 3.3Type of application . . . . . . . . . . . . . 5 3.4Method of operation . . . . . . . . . . . . 6 3.5Dimensional abbreviations for super-
16、abrasives . . . . . . . . . . . . . . . . . . . . 8 3.6Speeds, test speed factor and safety factors . . . . . . . . . . . . . . . . . . . . . . 9 3.7Other abbreviations . . . . . . . . . . .10 3.8Other definitions . . . . . . . . . . . . . .10 4List of hazards . . . . . . . . . . . . . .11 5Requirem
17、ents . . . . . . . . . . . . . . .12 5.1Requirements for superabrasive grinding wheels . . . . . . . . . . . . . .12 5.2Requirements for cutting-off wheels (saws) . . . . . . . . . . . . . . .16 5.3Requirements for diamond wire . . .21 5.4Requirements for mounted points .22 5.5Requirements for other
18、 superabrasives . . . . . . . . . . . . . . .23 5.6Marking . . . . . . . . . . . . . . . . . . . .25 5.7Blotters . . . . . . . . . . . . . . . . . . . .25 6Inspection and Testing by the manufacturer . . . . . . . . . . . . . . .25 6.1Test methods for grinding wheels .25 6.2Test methods for cutting-o
19、ff wheels (saws) . . . . . . . . . . . . . . . . . . . . .30 6.3Test methods for diamond wires . .34 6.4Test methods for mounted points .35 6.5Test methods for other superabrasives . . . . . . . . . . . . . .35 7Information for use . . . . . . . . . . .38 Annex A (normative) Marking. . . . . . . . .
20、 .39 A.1Marking . . . . . . . . . . . . . . . . . . . .39 A.1.1Content of the marking . . . . . . . . .39 A.1.2Colour codes . . . . . . . . . . . . . . . .40 A.1.3Restrictions of use . . . . . . . . . . . .41 A.1.4Additional inscriptions . . . . . . . . . .43 A.1.5Multiple or gang mounted wheels .43
21、 A.2Execution of the marking . . . . . . .43 A.2.1Superabrasives having an outside diameter D 80 mm . . . . . . . . . .43 A.2.2Superabrasives having an outside diameter D 80 mm (small abrasive products) . . . . . . .43 A.2.3Superabrasive segments . . . . . . . .44 A.2.4Colour code stripes . . . . .
22、. . . . . .44 A.3Design of the marking . . . . . . . . .44 Annex B (normative) Blotters. . . . . . . . . .46 B.1Blotters . . . . . . . . . . . . . . . . . . . .46 B.2Requirements . . . . . . . . . . . . . . .46 B.2.1Shape and dimensions . . . . . . . . .46 B.2.2Material . . . . . . . . . . . . . . .
23、 . . . . .46 B.3Supply of blotters with superabrasives . . . . . . . . . . . . . . .46 Annex C (informative) Mounted points . . . .47 C.1Mounted points . . . . . . . . . . . . . .47 C.1.1Scope . . . . . . . . . . . . . . . . . . . . .47 C.2Dimensions and designation . . . . .47 C.3Maximum speeds of
24、rotation . . . . .48 C.3.1Characteristics . . . . . . . . . . . . . . .48 C.4Calculation of the maximum speed of rotation . . . . . . . . . . . . .65 C.4.1Validity of the calculation model . .65 C.4.2Calculation model . . . . . . . . . . . . .66 Annex D (informative) Speed conversion table for speed
25、 of rotation and peripheral speed . . . . . . . . . . . . .69 Annex E (informative) Shapes and dimensions of grinding wheels and cutting- off wheels . . . . . . . . . . . . . . . . . .71 E.1Shapes and dimensions of grinding wheels and cutting- off wheels . . . . . . . . . . . . . . . . . .71 E.1.1St
26、ructure of the designation . . . . .71 E.1.2Location of the superabrasive section, see Table E.3 . . . . . . . . . . . . . . . . . .73 E.1.3Modifications, see Table E.4 . . . . .73 E.2Examples for wheel shapes and designation . . . . . . . . . . . . . . . . .77 Annex F (informative) Grain sizes and
27、concentration for diamond and cubic boron nitride . . . . . . . . . . . . . . . . . . . . . . . . . .80 F.1Grain sizes and concentration for diamond and cubic boron nitride . .80 Bibliography. . . . . . . . . . . . . . . . . . . . . . .83 Page 3 EN 13236:2001 Foreword This European Standard has been
28、 prepared 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 July 2001, and conflicting national stan
29、dards shall be withdrawn at the latest by July 2001. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland,
30、 Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 0 Introduction This standard has been prepared to be a European standard to provide one means of conforming with the Essential Safety Requirements of the Machinery Directive and associated
31、EFTA regulations. This standard is addressed to designers, manufacturers and suppliers of the grinding tools described in the scope. In addition, it helps designers, manufacturers and suppliers of grinding machines in the selection of grinding tools, in order to reduce the risks and achieve conformi
32、ty 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 standard. 1 Scope This standard is applicable to superabrasives which are manufactured or repaired after the date of issue of th
33、e standard. It specifies requirements and/or measures for the removal or reduction of hazards resulting from the design and application of the grinding tools. This standard contains also procedures and tests for verification of the compliance with the requirements as well as safety information for u
34、se which is to be made available to the user by the manufacturer. The hazards taken into consideration are listed in clause 4 of this standard. This standard applies to grinding wheels, cutting-off wheels, wires, mounted points and other grinding tools with diamond or cubic boron nitride as abrasive
35、. It does not apply to bonded abrasive products, coated abrasive products, rotating dressing tools, truers nor any non-rotating superabrasive tool. Foreword to amendment A1 This document (EN 13236:2001/A1:2005) has been prepared by Technical Committee CEN/TC 143 “Machine tools Safety“, the secretari
36、at of which is held by SNV. This Amendment to the European Standard EN 13236:2001 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2005, and conflicting national standards shall be withdrawn at the latest by Augus
37、t 2005. Except for the following amendments the content of EN 13236:2001 remains untouched. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). According to the CEN/CE
38、NELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Ma
39、lta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. This document can be applied only in conjunction with EN 13236:2001 Safety requirements for superabrasives. Page 4 EN 13236:2001 shafts ISO 565 Test sieves Metal wire cloth, perforated meta
40、l plate and electroformed sheet Nominal sizes of openings ISO 2768-1 : 1989 General tolerances; tolerances for linear and angular dimensions without individual tolerance indications 3 Definitions and symbols For the purpose of this standard the following definitions apply: 3.1 Material 3.1.1 Abrasiv
41、es Diamond, natural or synthetic and cubic boron nitride. Symbols shown in table 1. Table 1: Abrasives SymbolsDesignation Ddiamond Bcubic boron nitride (CBN) 3.1.2 Bond Table 2: Type of bond BResinoid and other thermosetting organic bonds GElectroplated, single layer and multilayer metal bonds MMeta
42、l bond VVitrified bond prEN 13218 : 1998 Machine tools Safety Stationary grinding machines ISO 286-1 ISO system of limits and fits Part 1: Bases of tolerances, deviations and fits ISO 286-2 ISO system of limits and fits Part 2: Tables of standard tolerance grades and limit deviations for holes and 2
43、 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references subsequent amendments to, or revisio
44、ns of, any of these publications apply to this European standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). Page 5 EN 13236:2001 3.2 Grinding machine 3.2.1 Stationary grinding machine
45、 Machine fixed in position during operation and capable of a combination of one or more types of operations, examples see prEN 13218 : 1998. 3.2.2 Mobile grinding machine Machine which is manually guided (but not hand-held) during grinding, e.g. joint grinding machine. 3.2.3 Hand-held grinding machi
46、ne Machine including those with flexible drive held in the hand during operation. 3.2.4 Stationary cutting-off (Sawing) machine Machine specifically designed for cutting-off applications. Included are as well mobile cutting-off machines held in position during cutting-off. 3.2.5 Mobile cutting-off (
47、Sawing) machine Machine which is manually guided (but not handheld) during cutting-off, e.g. joint cutting machine. 3.2.6 Hand-held cutting-off (Sawing) machine Machine held in the hand during operation. 3.2.7 Grinding and cutting-off (Sawing) machine with totally enclosed working area Stationary ma
48、chine for mechanically guided grinding or cutting-off with operating areas which are protected in such a way by separating guards that machining processes including loading and unloading of workpieces can be carried out inside them and persons are protected against hazards generated by bursting of a
49、n abrasive product. 3.3 Type of application Type of guidance of grinding tool and workpiece during grinding and cutting-off, see table 3. 3.3.1 Mechanically guided grinding The movements of the grinding tool and/or the workpiece are guided by mechanical means. 3.1.5 Concentration Code number for the volumetric content of abrasive in the section, the concentration 100 corresponding to 25 % diamond or cubic boron nitride volume content. 3.1.4 Grain size Code number for the size of the a
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