《BS-EN-710-1998.pdf》由会员分享,可在线阅读,更多相关《BS-EN-710-1998.pdf(66页珍藏版)》请在三一文库上搜索。
1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 710 : 1998 The Euro
2、pean Standard EN 710 : 1997 has the status of a British Standard ICS 25.120.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Safety requirements for foundry moulding and coremaking machinery and plant and associated equipment This British Standard, having been prepared under
3、 the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 January 1998 BSI 1998 ISBN 0 580 28911 7 BS EN 710 : 1998 Amendments issued since publication Amd. No.DateText affected National foreword This British Standard is the
4、English language version of EN 710 : 1997. The UK participation in its preparation was entrusted by Technical Committee MCE/3 Safeguarding of machinery, to Subcommittee MCE/3/10, Foundry machines Safety, which has the responsibility to: aid enquirers to understand the text; present to the responsibl
5、e European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secret
6、ary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Elec
7、tronic Catalogue. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 62, an inside back cover and a back cover. CEN European Committee for Standardi
8、zation Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref. No. 710 : 1997 E EUROPEAN STANDARDEN 710 NORME EUROPE
9、 ENNE EUROPA ISCHE NORM August 1997 ICS 25.120.30 Descriptors: Moulding equipment, foundry equipment, safety of machinery, dangerous machines, safety requirements, accident prevention, hazardous areas, hazards, safety measures, safety devices, verification, marking, technical notices English version
10、 Safety requirements for foundry moulding and coremaking machinery and plant and associated equipment Prescriptions de se curite applicables aux machines et chantiers de moulage et de noyautage en fonderie et a leurs e quipements annexes Sicherheitsanforderungen an Gieereimaschinen und -anlagen der
11、Form- und Kernherstellung und dazugeho rige Einrichtungen This European Standard was approved by CEN on 1997-08-02. 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
12、 alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by
13、translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Irel
14、and, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Page 2 EN 710 : 1997 BSI 1998 Foreword This European Standard has been prepared by Technical Committee CEN/TC 202, Foundry machinery, the secretariat of which is held by DIN. This European Standard
15、shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 1998, and conflicting national standards shall be withdrawn at the latest by February 1998. For relationship with EU Directives, see informative annex ZA, which i
16、s an integral part of this standard. 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, Ireland, Italy,
17、 Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 0Introduction3 1Scope3 2Normative references3 3Definitions5 3.1Moulding5 3.2Coremaking5 3.3Associated equipment6 3.4Knock-out equipment6 3.5Modes of operation7 4Hazards7 5Safety req
18、uirements and measures7 5.1General7 5.2Conditioning and reclamation equipment10 5.3Moulding machinery and plants17 5.4Coremaking machinery and plants27 5.5Knock-out equipment31 Page 5.6Handling of machines and heavy component parts for maintenance and repair32 5.7Fire/explosion when coating moulds a
19、nd cores32 5.8Maintenance and setting activities33 6Verification of the safety requirements and preventative measures according to clause 535 6.1Safety systems35 6.2Electrical safety35 6.3Pressure release of dust explosions35 6.4Explosiveness of coal dust or coal dust substitutes35 6.5Stress analysi
20、s35 6.6Airborne substances generated during operation35 6.7Noise35 6.8Vibration35 6.9Safety marking35 7Information for use35 7.1Marking35 7.2Technical data and description for safety35 7.3Operation manual36 7.4Maintenance manual36 Annexes A(normative) Examples of solutions for 3.8 of EN 292-2 Preven
21、ting hazards from hydraulic and pneumatic equipment37 B(informative) Main components of hazardous gases and fumes during the application of moulding material binders and coatings for cores and moulds57 C(normative) Hazardous areas and corresponding preventative measures59 ZA(informative) Clauses of
22、this European Standard addressing essential requirements or other provisions of EU Directives62 Page 3 EN 710 : 1997 BSI 1998 0 Introduction This European standard is a type C standard as defined in EN 292-1. The machinery concerned and the extent to which hazards are covered is indicated in the sco
23、pe of this standard. In addition, machinery shall comply as appropriate with EN 292-1 and EN 292-2 for hazards which are not covered by this standard and if applicable the other standards referenced in clause 2. 1 Scope This standard specifies safety requirements to be met by the manufacturer for ma
24、chines and plant used in foundries for the production of castings in disposable moulds. It takes into account the foreseeable significant hazards due to design, construction and installation that may occur during commissioning, operation, maintenance and decommissioning. It specifies preventative me
25、asures and verification means for the elimination or reduction of these hazards. It specifies requirements for information to be provided by the manufacturer to the user on safe operation and maintenance. This standard applies to the following equipment: machinery and plant constructed to condition
26、and/or reclaim foundry sands; moulding machinery and plants; coremaking machinery and plants; knock-out equipment; other directly associated equipment. The foreseeable significant hazards covered are listed in clause 5 and include: mechanical hazards, movement of machinery and workpieces, ejection o
27、f material, of liquids and gases, inadequacy of the mechanical strength; explosion, fire, exothermic reactions; contact with hot parts, gases and flames; noise and vibration; thermal heat radiation and conduction; harmful by-products, poisoning, pollution of operators breathing air. This standard ap
28、plies to equipment which is placed on the market after the date of issue of this standard. This standard does not cover the safety requirements for wax- and lost foam pattern production and wax removal equipment and drying ovens. This standard does not apply to crane installations, winches, continuo
29、us conveyors or handling systems which could be an integral part of the above equipment. The standard does not cover dust reduction equipment. 2 Normative references This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references are
30、 cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest ed
31、ition of the publication referred to applies. EN 286-1 : 1991Simple unfired pressure vessels designed to contain air or nitrogen Part 1: Design, manufacture and testing EN 292-1 : 1991Safety of machinery Basic concepts, general principles for design Part 1: Basic terminology, methodology EN 292-2 :
32、1991Safety of machinery Basic concepts, general principles for design Part 2: Technical principles and specifications EN 292-2/A1 : 1995Safety of machinery Basic concepts, general principles for design Part 2: Technical principles and specifications EN 294 : 1992Safety of machinery Safety distances
33、to prevent danger zones being reached by the upper limbs EN 349 : 1993Safety of machinery Minimum distances to avoid crushing of parts of the human body EN 418 : 1992Safety of machinery Emergency stop equipment, functional aspects Principles for design ENV 1070Safety of machinery Terminology EN 1088
34、 : 1995Safety of machinery Interlocking devices with and without guard locking General principles and specifications for design EN 60204-1 : 1992Safety of machinery Electrical equipment of machines Part 1: General requirements Page 4 EN 710 : 1997 BSI 1998 EN 61310-1 : 1994Safety of machinery Indica
35、ting, marking and actuating principles Part 1: Visual, audible and tactile signals prEN 574 : 1991Safety of machinery Two-hand control device prEN 614-1 : 1994Safety of machinery Ergonomic design principles Part 1: Terminology and general principles prEN 746-2 : 1992Industrial thermoprocessing equip
36、ment Part 2: Safety requirements for combustion and fuel handling systems prEN 953 : 1992Safety of machinery Guarding of machinery Fixed and movable guards prEN 954-1 : 1996Safety of machinery Safety related parts of control systems Part 1: General principles for design prEN 982 : 1995Safety of mach
37、inery Safety requirements for fluid power systems and their components hydraulics prEN 983 : 1994Safety of machinery Safety requirements for fluid power systems and their components pneumatics prEN 999 : 1993Safety of machinery Hand/arm speed; approach speed of parts of the body for the positioning
38、of safety devices prEN 1005-2 : 1995 (2nd revision) Safety of machinery Human physical performance Part 2: Manual handling of machinery and component parts of machinery prEN 1093-1 : 1993Safety of machinery Evaluation of the emission of airborne hazardous substances Part 1: Selection of test methods
39、 prEN 1265 : 1993Noise test code for foundry machines and equipment prEN 1539 : 1994Dryers and ovens in which flammable substances are released from coating materials Safety requirements prEN 1921 : 1995Industrial automation systems Safety of integrated manufacturing systems Basic requirements prEN
40、50100-1 : 1992Safety of machinery Electro-sensitive protective devices Part 1: Specifications for general requirements ISO 6184-1 : 1985Explosion protection systems Part 1: Determination of explosion indices of combustible dusts in air ISO/TR 11688-1 : 1995 Acoustics Recommended practice for the des
41、ign of low-noise machinery and equipment Part 1: Planning Page 5 EN 710 : 1997 BSI 1998 3 Definitions For the purposes of this standard, the definitions given in ENV 1070 apply. Other terms, definitions and characteristics are as follows: Term/Type of machineDefinition/Description, Character, Functi
42、ons 3.1 Moulding 3.1.1 Moulding machineryMachines used to make sand moulds. There are various machinery types which compact granular moulding materials including: jolt moulding machines (compaction by jolting the moulding machine deck); squeeze moulding machines (compaction by squeezing the pattern
43、equipment and the moulding sand together); jolt and squeeze moulding machines; shoot-/blow- and squeeze moulding machines; impulse moulding machines (the moulding sand is compacted by a compression wave which acts on the top of the sand fill); air-flow-squeeze moulding machines (similar to impulse-m
44、oulding machines, except that the compressed air escapes through nozzles in the pattern plate); dynamic squeeze moulding machines (compensating pressure squeeze pistons act on the top of the sand fill); suction and squeeze moulding machines (the pressure differential between the moulding box and the
45、 pattern draws in the moulding sand); vacuum-moulding machines (unbonded sand is compacted by vacuum); sand slingers (the moulding sand is flung into the moulding box by the centrifugal force of a rotating wheel). 3.1.2 Moulding plantAll the equipment used to make ready-to-pour sand moulds. A mouldi
46、ng plant consists of moulding stations (automatic moulding machines for complete moulds) or several moulding machines (moulding group) that produce the moulding parts separately. It may also include lines for core setting, mould closing, weighting or clamping, pouring, cooling, knocking-out of the m
47、ould parts and emptying of the boxes as well as integral transfer systems linking the various stations and lines. 3.1.3 Disposable mouldA mould that is destroyed to remove the casting. 3.2 Coremaking 3.2.1 Coremaking machineryMachines used to make solid and/or hollow cores. Coremaking machinery is c
48、lassified into core shooters and core blowers. The principle of core shooting is to rapidly expand compressed air via the sand cylinder into the sand. The cylinder is equipped with openings and a provision for sandfilling (indirect working). The sand is then conveyed along in the airstream. The prin
49、ciple of core blowing is to transport the sand by means of compressed air into the corebox (direct working). The sand is conveyed along in front of the compressed air. 3.2.2 Coremaking plantAll the equipment used to make ready-to-use cores (single cores and/or core assemblies). A plant may consist of a sand preparation plant, coremaking machine, equipment for handling, deflashing, assembling, coating and drying of cores. Page 6 EN 710 : 1997 BSI 1998
链接地址:https://www.31doc.com/p-3744878.html