ANSI B11 STD B11.17-2004 Safety Requirements for Horizontal Hydraulic Extrusion Presses.pdf

1、 ANSI B11.17-2004 (R2015) American National Standard for Machine Tools - Safety Requirements for Horizontal Hydraulic Extrusion Presses Secretariat and Standards Developing Organization B11 Standards, Inc. POB 690905 Houston, TX 77269 Approved: MAY 6, 2004 Reaffirmed: JULY 14, 2015 by the American N

2、ational Standards Institute ii Published by: B11 Standards, Inc. The Association For Manufacturing Technology POB 690905, Houston TX 77269, USA Copyright 2015 by B11 Standards, Inc. All rights reserved. Printed in the United States of America AMERICAN NATIONAL STANDARDS By approving this American Na

3、tional Standard, the ANSI Board of Standards Review confirms that the requirements for due process, consensus, balance and openness have been met by B11 Standards, Inc. The Association For Manufacturing Technology (the ANSI-accredited standards developing organization). American National Standards a

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15、ent should rely on his or her own independent judgment, or as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. B11 Standards, Inc. has no power, nor does it undertake to police or enforce conformance to the requiremen

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18、s standard. You may contact the Secretariat for current status information on this, or other B11 standards. Individuals interested in obtaining up-to-date information on standards can access this information at http:www.nssn.org (or by contacting ANSI). NSSN - A National Resource for Global Standard

19、s, provides a central point to search for standards information from worldwide sources and can connect those who seek standards to those who supply them. iii TABLE of CONTENTS Page FOREWORD . V EXPLANATION OF THE FORMAT, AND ANSI B11 CONVENTIONS VII INTRODUCTION VIII 1 SCOPE . 1 1.1 GENERAL . 1 1.2

20、EXCLUSIONS 1 2 NORMATIVE REFERENCES . 2 3 DEFINITIONS . 3 4 RESPONSIBILITY 6 4.1 SUPPLIERS RESPONSIBILITY . 6 4.2 USERS RESPONSIBILITY . 7 4.3 PERSONNELS RESPONSIBILITY . 8 5 HAZARD CONTROL 9 5.1 TASK AND HAZARD IDENTIFICATION . 9 5.2 RISK ASSESSMENT / RISK REDUCTION 10 6 DESIGN AND CONSTRUCTION . 1

21、1 6.1 GENERAL . 11 6.2 HYDRAULIC COMPONENTS AND CIRCUITS . 12 6.3 PNEUMATIC COMPONENTS AND CIRCUITS. 13 6.4 ELECTRICAL EQUIPMENT . 14 6.5 OPERATOR INTERFACE AND CONTROL SYSTEM 14 6.6 FLUCTUATION IN OR INTERRUPTION OF POWER SOURCES . 18 6.7 ISOLATION OF POWER SOURCES . 18 6.8 STORED ENERGY 18 6.9 EXT

22、ERNAL INTERFERENCES 18 6.10 PROVISIONS FOR TOOL ALIGNMENT . 19 6.11 PLATEN EXIT VIEWING . 19 6.12 NOISE 19 7 INSTALLATION, TESTING AND START-UP 19 7.1 GENERAL . 19 7.2 FOUNDATION 19 7.3 LIGHTING . 20 7.4 FIRE PROTECTION 20 7.5 TESTING AND START-UP 20 8 SAFEGUARDING . 21 8.1 GENERAL . 21 8.2 GUARDS 2

23、1 8.3 SAFEGUARDING (PROTECTIVE) DEVICES 21 8.4 AWARENESS BARRIERS, DEVICES AND SIGNS . 21 8.5 SAFEGUARDING METHODS 21 8.6 SAFE WORK PROCEDURES 22 8.7 COVERS AND SHIELDS 22 8.8 COMPLEMENTARY EQUIPMENT 22 8.9 SAFETY DISTANCE 22 8.10 PERFORMANCE OF THE SAFETYRELATED FUNCTION(S) . 23 iv 9 OPERATION AND

24、MAINTENANCE 24 9.1 TRAINING OF PERSONNEL . 24 9.2 LOCKOUT/TAGOUT/VERIFY 24 9.3 SET-UP 24 9.4 OPERATION 25 9.5 MAINTENANCE . 25 ANNEX A EXAMPLE FIGURES 27 ANNEX B PERFORMANCE OF THE SAFETY-RELATED FUNCTION(S) 32 ANNEX C AUDIT LIST . 32 v Foreword (This Foreword is not part of the requirements of Amer

25、ican National Standard B11.17-2004.) The primary objective of this standard is to eliminate, control or reduce hazards to individuals associated with horizontal hydraulic extrusion presses by establishing requirements for the design, construction, operation and maintenance of these machines. To acco

26、mplish this objective, responsibilities have been assigned to the supplier (e.g., manufacturer, modifier, rebuilder and integrator), the user, and individuals in the working environment. The words “safe“ and “safety“ are not absolutes. An element of safety is attitude. While the objective of this st

27、andard is to eliminate, control, or reduce hazards, this standard recognizes that hazards cannot be practically reduced to zero in any human activity. This standard is not intended to replace good judgment, proper training, and personal responsibility. Operator skill, job monotony, fatigue, and expe

28、rience are safety factors that should be considered by the user. The original B11.17 Standard was approved in 1982 and reaffirmed in 1989 as originally written. B11.17 was then revised and approved in 1996. This current standard was then revised (its third) by the B11.17 Subcommittee, processed and

29、administered by the Secretariat, and approved by the B11 Accredited Standards Committee for submittal to the ANSI Executive Standards Council as an American National Standard. Horizontal hydraulic extrusion press technology is continuously evolving. This standard reflects the most commonly used and

30、time-tested state of the art at the time of its approval. The inclusion or omission of language relative to any evolving technology, either in the requirements or explanatory area of this standard, in no way infers acceptance or rejection of such technologies. Inquiries with respect to the applicati

31、on of the substantive requirements of this standard and suggestions for its improvement are welcomed and are to be sent to the B11 Standards, Inc. POB 690905, Houston TX 77269, USA. Attention: B11 Secretariat. EFFECTIVE DATE The following is informative guidance only, and not a normative part of thi

32、s standard. This Subcommittee recognizes that some period of time after the approval date on the title page of this document is necessary for suppliers and users to develop new designs, or modify existing designs or manufacturing processes in order to incorporate the new or revised requirements of t

33、his standard into their product development or production system. This Subcommittee recommends that suppliers complete and implement design changes within 30 months of the approval of this standard. For existing or modified machines, users should confirm that the equipment / process has tolerable ri

34、sk using generally recognized risk assessment methods. If the risk assessment shows that modification(s) is necessary, refer to the requirements of this standard to implement protective measures for appropriate risk reduction. This standard was processed and submitted for ANSI approval by the B11 Ac

35、credited Standards Committee on Safety Standards for Machine Tools. Committee approval of this standard does not necessarily imply that all committee members voted for its approval. At the time this document was approved as an American National Standard, the ANSI B11 Accredited Standards Committee w

36、as composed of the following member organizations: vi John W. Russell,PE, CSP Chairman Gary D. Kopps, Vice-Chairman David A. Felinski, Secretary Organizations Represented Name of Representative Delegate Alternate Aerospace Industries Association of America Willard J. Wood Robert J. Eaker, PE, CSP Al

37、liance of American Insurers John Russell, PE, CSP Keith Lessner American Institute for Steel Construction Thomas Schlafly American Society of Safety Engineers Bruce Main, PE, CSP George Karosas, PE, CSP Association For Manufacturing Technology Russell Bensman Automotive Industry Action Group Ron Til

38、linger Can Manufacturers Institute Geoffrey Cullen General Motors Corporation Michael Taubitz Deere no deviation is permitted. The term “SHOULD” denotes a recommendation, a practice or condition among several alternatives, or a preferred method or course of action. Similarly, the term “CAN” denotes

39、a possibility, ability or capability, whether physical or causal, and the term “MAY” denotes a permissible course of action within the limits of the standard. B11 conventions: Operating rules (safe practices) are not included in either column of this standard unless they are of such nature as to be

40、vital safety requirements, equal in weight to other requirements, or guides to assist in compliance with the standard. The B11 standards do not use the term “and/or” but instead, the term “OR” is used as an inclusive disjunction, meaning one or the other or both. A distinction between the terms “ind

41、ividual” and “personnel” is drawn. Individual includes personnel (employees, subcontractors, consultants, or other contract workers under the indirect control of the supplier or user) but also encompasses persons who are not under the direct or indirect control of the supplier or user (e.g., visitor

42、s, vendors, etc.). Gauge refers to a measuring or testing instrument; gage refers to a limiting device (e.g., backgage). Suggestions for improvement of this standard will be welcome. They should be sent to B11 Standards, Inc. POB 690905, Houston TX 77269, USA - Attention: B11 Secretariat. viii Intro

43、duction The primary purpose of every machine tool is to process parts. Hazards exist that may result in injury during production, maintenance, commissioning and de-commissioning. The primary purpose of the ANSI B11 series of machine tool safety standards is to devise and propose ways to minimize ris

44、ks of the potential hazards. This can be accomplished either by an appropriate machine design, by restricting personnel or other individuals access to hazard areas, and by devising work procedures to minimize personnel exposure to hazardous situations. This is the essence of the ANSI B11 series of s

45、afety standards. The responsibility to reduce these risks to a tolerable level, or eliminate them is divided between the equipment supplier, its user and its operating personnel, as follows (numbers in parentheses refer to the clause numbers in these standards which address that responsibility): As

46、an aid to both supplier and the user, an audit checklist of important requirements has been provided in Annex C. AMERICAN NATIONAL STANDARD B11.172004 1 American National Standard for Machine Tools - Safety Requirements for Horizontal Hydraulic Extrusion Presses STANDARD REQUIREMENTS EXPLANATORY INF

47、ORMATION (Not part of the requirements of American National Standard for Machine ToolsSafety Requirements for Horizontal Hydraulic Extrusion Presses- ANSI B11.17-2004) 1 Scope 1.1 General E1.1 The requirements of this standard apply only to those horizontal hydraulically powered presses that extrude

48、 metals by means of applying sufficient pressure to an individual metal billet, confined within a container, to force the metal to be extruded through the configured openings of a die. The horizontal hydraulic extrusion press, hereafter referred to as a press, is a hydraulically powered machine that

49、 functions to extrude metals horizontally either by the direct or indirect process. It includes components necessary to handle and process metals from the loading mechanism through the platen exit or external butt shear. Components include control systems, hydraulic power systems, main force application cylinder and ram, auxiliary hydraulic and pneumatic cylinders that move components that are an integral part of the extruding machine, material loading mechanism, material pressure containment device, tooling used to