1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1559-6:1999 The Eur
2、opean Standard EN 1559-6:1998 has the status of a British Standard ICS 77.150.60 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Founding Technical conditions of delivery Part 6: Additional requirements for zinc alloy castingsThis British Standard, having been prepared under t
3、he direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 May 1999 BSI 05-1999 ISBN 0 580 30776 X BS EN 1559-6:1999 Amendments issued since publication Amd. No. Date Text affected National foreword This British Standard
4、 is the English language version of EN 1559-6:1998. The UK participation in its preparation was entrusted to Technical Committee NFE/8, Zinc and zinc alloys, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the inte
5、rpretation, 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 secretary. Cross-references The British Standards wh
6、ich 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 Electronic Catalogue. A British Standard does
7、not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. 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
8、 front cover, the EN title page, pages 2 to 4, an inside back cover and a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any for
9、m and by any means reserved worldwide for CEN national Members. Ref. No. EN 1559-6:1998 E EUROPEAN STANDARD EN 1559-6 NORME EUROPE ENNE EUROPA ISCHE NORM November 1998 ICS 77.150.60 Descriptors: founding, castings, zinc, zinc alloys, specifications, definitions, manufacturing, materials specificatio
10、ns, tests English version Founding Technical conditions of delivery Part 6: Additional requirements for zinc alloy castings Fonderie Conditions techniques de fourniture Partie 6: Spe cifications comple mentaires pour les pie ces moule es en alliage de zinc Gieereiwesen Technische Lieferbedingungen T
11、eil 6: Zusa tzliche Anforderungen an Gustu cke aus Zinklegierungen This European Standard was approved by CEN on 22 October 1998. 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 standa
12、rd without any 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 lan
13、guage made by 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,
14、 Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 1559-6:1998 BSI 05-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 209, Zinc and zinc alloys, the Secretariat of which is held by AFNOR. T
15、his 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 1999, and conflicting national standards shall be withdrawn at the latest by May 1999. This European Standard is one of several which specify tec
16、hnical delivery conditions for castings. The other standards in this series are: EN 1559-1, Founding Technical conditions of delivery Part 1: General. prEN 1559-2, Founding Technical conditions of delivery Part 2: Additional requirements for steel castings. EN 1559-3, Founding Technical conditions o
17、f delivery Part 3: Additional requirements for iron castings. prEN 1559-4, Founding Technical conditions of delivery Part 4: Additional requirements for aluminium alloy castings. EN 1559-5, Founding Technical conditions of delivery Part 5: Additional requirements for magnesium alloy castings. Accord
18、ing 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, Luxembourg, Netherlands, Norway, Portugal,
19、 Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 Introduction 3 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Information to be supplied by the purchaser 3 5 Designations 3 6 Manufacture 3 6.1 Manufacturing process 3 6.2 Welding operations 3 7 Requirements 3 7.1 Ge
20、neral 3 7.2 Material 3 7.3 Casting 3 8 Testing and documents on material testing 4 8.1 General 4 8.2 Inspection and testing 4 8.3 Test unit sampling 4 8.4 Samples 4 8.5 Test methods 4 8.6 Invalidation of tests 4 8.7 Retests 4 8.8 Sorting and reprocessing 4 9 Marking 4 10 Packaging and surface protec
21、tion 4 11 Complaints 4Page 3 EN 1559-6:1998 BSI 05-1999 Introduction CEN/TC 209, Zinc and zinc alloys, has prepared a product standard covering zinc alloy castings. In order to assist manufacturers and purchasers to prepare proper contractual arrangements and prevent misunderstanding, CEN/TC 190, Fo
22、undry technology, approved the preparation of a series of standards covering technical delivery conditions. These have been prepared as separate parts. This European Standard covers the additional technical delivery conditions for zinc alloy castings, e.g. optional information, manufacturing process
23、, welding operation, additional requirements regarding condition of the casting, test methods. This European Standard cannot be used alone for compiling a specification for ordering and supplying zinc alloy castings, but as a complement to EN 1559-1. The following symbols are used in this standard:
24、clauses and subclauses preceded by indicates no additional requirements to EN 1559-1; subclauses preceded by indicates requirements that are optional, which can be agreed at the time of ordering; clauses and subclauses without a symbol are mandatory. 1 Scope This part of EN 1559 applies to castings
25、made from zinc alloys produced by sand casting, permanent mould casting, pressure die casting, centrifugal casting, continuous casting or investment casting. This standard specifies the additional technical delivery conditions for zinc alloy castings. This standard does not apply to ingots, bars, bi
26、llets (or other shapes) for further reprocessing, such as remelting, grinding or extrusion. 2 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
27、 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 edition of the publication referred to applies. EN 13
28、71-1, Founding Liquid penetrant inspection Part 1: Sand, gravity die and low pressure die castings. EN 1371-2, Founding Liquid penetrant inspection Part 2: Investment castings. EN 1559-1, Founding Technical conditions of delivery Part 1: General. EN 1774, Zinc and zinc alloys Alloys for foundry purp
29、oses Ingots and liquid. prEN 12681, Founding Radiographic inspection. EN 12844, Zinc and zinc alloys Castings Specifications. 3 Definitions See EN 1559-1, EN 1774 and EN 12844. 4 Information to be supplied by the purchaser 5 Designations The designation of zinc alloy castings by alloy number or by a
30、lloy short designation shall be in accordance with EN 12844. This designation shall be used on drawings, in the order and on the product according to EN 12844. The designation describes the zinc alloy based on chemical composition. NOTE Designations of cast zinc alloys are given in EN 1774. 6 Manufa
31、cture 6.1 Manufacturing process 6.2 Welding operations 6.2.1 General 6.2.2 Production welding In addition to EN 1559-1, welding shall not be permitted for pressure die castings, but may be used for other types of castings. 7 Requirements 7.1 General 7.2 Material 7.3 Casting 7.3.1 Chemical compositio
32、n 7.3.2 Mechanical properties 7.3.3 Non-destructive testing 7.3.3.1 EN 1559-1 shall apply with the following additions. The liquid penetrant inspection shall be carried out in accordance with either EN 1371-1 or EN 1371-2, as appropriate. The radiographic inspection shall be carried out in accordanc
33、e with prEN 12681. 7.3.3.2 The surface condition of the casting shall be agreed either at the time of ordering or shall correspond to the initial sample.Page 4 EN 1559-6:1998 BSI 05-1999 7.3.3.3 For pressure die castings, unacceptable external and internal discontinuities shall lead to a rejection o
34、f the part. 7.3.3.4 7.3.4 Condition of the casting 7.3.5 Mass of the casting 7.3.6 Additional requirements regarding the condition of the casting In order to eliminate leaks in castings it is possible with the approval of the purchaser to use impregnation procedures. The impregnation medium and meth
35、od, maximum permitted size of discontinuities and retest procedures shall be agreed between the manufacturer and the purchaser. If applicable, density evaluation by weight measurements in air and water to agreed criteria shall be used to estimate the soundness of the casting. 8 Testing and documents
36、 on material testing 8.1 General 8.2 Inspection and testing See EN 1559-1, EN 1774 and EN 12844. 8.3 Test unit sampling 8.3.1 Formation of test units 8.3.2 Size of test units 8.3.3 Inspection frequency 8.4 Samples See EN 1559-1, EN 1774 and EN 12844. 8.5 Test methods See EN 1559-1, EN 1774 and EN 12
37、844. 8.6 Invalidation of tests 8.7 Retests 8.7.1 General 8.7.2 Individual values (non-sequential tests) EN 1559-1 shall apply with the following addition. If there is a disagreement between the manufacturer and the purchaser on the chemical composition of a test unit the manufacturer shall re-check
38、the chemical composition on the original test piece, whenever possible. If the disagreement persists a referee analysis shall be carried out by a mutually acceptable laboratory. 8.7.3 Sequential tests 8.8 Sorting and reprocessing 9 Marking 10 Packaging and surface protection 11 ComplaintsblankBSI 38
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