BS EN 577-1996 Aluminium and aluminium alloys - Liquid metal - Specifications《铝和铝合金 液体金属 规范》.pdf

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 577 : 1996 The European

2、 Standard EN 577 : 1995 has the status of a British Standard ICS 77.120.10 N No o c co op py yi in ng g w wi it th ho ou ut t B BS SI I p pe er rm mi is ss si io on n e ex xc ce ep pt t a as s p pe er rm mi it tt te ed d b by y C Co op py yr ri ig gh ht t L La aw w Aluminium and aluminium alloys Liq

3、uid metal SpecificationsThis British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 May 1996 BSI 1996 The following BSI references relate to the work on this standard: Committee

4、reference NFE/35 Draft for comment 91/47495 DC ISBN 0 580 25794 0 BS EN 577 : 1996 Amendments issued since publication Amd. No. Date Text affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee NFE/35, Light metals and t

5、heir alloys, upon which the following bodies were represented: Aluminium Federation Aluminium Stockholders Association Association of Light Alloy Refiners British Foundry Association London Metal Exchange Magnesium Industry Council Ministry of Defence The following bodies were also represented in th

6、e drafting of the standard, through subcommittees and panels: British Investment Casting Trade Association Light Metal Founders Association Society of Motor Manufacturers and Traders Limited Co-opted members BSI 1996 i BS EN 577 : 1996 Contents Page Committees responsible Inside front cover National

7、 foreword ii Foreword 2 Text of EN 577 3ii BSI 1996 BS EN 577 : 1996 National foreword This British Standard has been prepared by Technical Committee NFE/35 and is the English language vesion of EN 577 : 1995 Aluminium and aluminium alloys Liquid metal Specifications, published by the European Commi

8、ttee for Standardization (CEN). Cross-references Publication referred to Corresponding British Standard EN 576 : 1995 BS EN 576 : 1996 Aluminium and aluminium alloys Unalloyed aluminium ingots for remelting Specifications EN ISO 9000-1: 1994 BS EN ISO 9000 : 1994 Quality management and quality assur

9、ance standards Part 1 : 1994 Guidelines for selection and use Compliance with a British Standard does not of itself confer immunity from legal obligations.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stass

10、art 36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members Ref. No. EN 577 : 1995 E EUROPEAN STANDARD EN 577 NORME EUROPE ENNE EUROPA ISCHE NORM July 1995 ICS 77.120.10 Descriptors: aluminium, aluminium allo

11、ys, liquid metals, delivery, characteristics, inspection English version Aluminium and aluminium alloys Liquid metal Specifications Aluminium et alliages daluminium Me tal liquide Spe cifications Aluminium und Aluminiumlegierungen Flu ssigmetall Spezifikation This European Standard was approved by C

12、EN on 1995-06-03. 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. Up-to-date lists and bibliographical references concerning such national standards ma

13、y 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 translation under the responsibility of a CEN member into its own language and notified to the Cen

14、tral Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 577

15、 : 1995 BSI 1996 Foreword This European Standard has been prepared by the Technical Committee CEN/TC 132, Aluminium and aluminium alloys, of which the secretariat is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or

16、by endorsement, at the latest by January 1996, and conflicting national standards shall be withdrawn at the latest by January 1996. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Ge

17、rmany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Orders or tenders 3 5 Requirements 3 6 Product inspection and testing methods 4 7 Inspection

18、 documents 4 8 Delivery documents 4Page 3 EN 577 : 1995 BSI 1996 1 Scope This European Standard specifies the requirements for the delivery in liquid metal of unalloyed aluminium or aluminium alloys. 2 Normative references This European Standard incorporates by dated and undated reference, provision

19、s 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 revisions of any of these publications apply to this European Standard only when incorporated in it by am

20、endment or revision. For undated references, the latest edition of the publication referred to applies. EN 576 Aluminium and aluminium alloys Unalloyed aluminium ingots for remelting Specifications prEN 1676 Aluminium and aluminium alloys Alloyed aluminium ingots for remelting Specifications prEN 17

21、80-1 Aluminium and aluminium alloys Designation of unalloyed and alloyed aluminium ingots for remelting, master alloys and castings Part 1 : Numerical designation system prEN 1780-2 Aluminium and aluminium alloys Designation of unalloyed and alloyed aluminium ingots for remelting, master alloys and

22、castings Part 2 : Chemical symbol based designation system prEN 1780-3 Aluminium and aluminium alloys Designation of unalloyed and alloyed aluminium ingots for remelting, master alloys and castings Part 3 : Writing rules for chemical composition EN ISO 9000-1 Quality management and quality assurance

23、 standards Part 1 : Guidelines for selection and use (ISO 9000-1 : 1994) 3 Definitions For the purposes of this standard, the following definitions apply. 3.1 aluminium Metal with a minimum content of 99,0 % by mass of aluminium, provided that the content by mass of any other element does not exceed

24、 the following limits: iron + silicon contents not greater than 1,0 %; other element contents not greater than 0,10 % each, with the exception of copper which is permitted to a content of up to 0,20 % provided that neither the chromium nor the manganese content exceeds 0,05 %. NOTE. Aluminium in the

25、 liquid state or in the form of ingots for remelting is often called unalloyed aluminium. 3.2 alloy Metallic substance consisting of a mixture of the basic metallic element (the element predominating by mass) and other elements such as alloying elements and impurities. 3.3 alloying element Metallic

26、or non-metallic element intentionally added to or naturally contained by a basic metal and the amount of which is controlled within specific upper and lower limits for the purpose of giving that metal certain special properties. 3.4 impurity Metallic or non-metallic element present but which is not

27、intentionally added to a metal and for which no lower limit is specified. 4 Orders or tenders The order or tender shall define the product required and shall contain the following information: a) designation of the unalloyed aluminium or aluminium alloy, according to the relevant European Standard (

28、or the customer code after agreement between supplier and purchaser); b) form of the product (liquid metal); c) quantity: mass (in metric tonnes); quantity tolerances if required; d) any requirements for certificates of conformity, test and/or analysis reports or inspection certificates; e) any addi

29、tional requirements agreed between supplier and purchaser. 5 Requirements 5.1 Production and manufacturing processes Unless otherwise specified in the order the production and manufacturing processes shall be left to the discretion of the producer. Unless it is explicitly stated in the order, no obl

30、igation shall be placed on the producer to use the same processes for subsequent and similar orders. 5.2 Quality control The supplier shall be responsible for the performance of all inspection and tests required by the relevant European Standard and/or the particular specification, on arrival (for e

31、xample, temperature of the metal).Page 4 EN 577 : 1995 BSI 1996 5.3 Chemical composition The supplier shall supply grades with chemical composition in accordance with the relevant European Standard (EN 576 or prEN 1676). If the purchaser requires content limits for elements not specified in the stan

32、dard, these limits shall be stated on the order, after agreement between supplier and purchaser. 5.4 Transport ladles The design of liquid metal transport ladles is left to the suppliers discretion as to their shape, capacity and brickwork. Each ladle shall be numbered. The ladles shall be designed

33、so as to prevent metal leaking, even in the case of major incidents, e.g. lifting beam failure, transport accident. They shall comply with any existing regulations of the country (countries) concerned. They shall include a fastening device to secure the ladle to the truck or trailer platform. The la

34、dle output and its safety device shall be suited to the purchasers discharge method, e.g. bottom pouring discharge with or without ladle handling, tip discharge (crane or tipper), or pressure discharge. The maximum shell temperature attained shall not cause a significant reduction in the mechanical

35、properties of the ladle. 5.5 Means of transportation Details of transportation such as: suitability of transport vehicle under general traffic conditions; the position of the centre of gravity being as low as necessary for safe transportation; the vehicle being fitted with suitable fire extinguisher

36、s; the training of the driver; shall conform to the regulations and practices in force in the countries of origin, transit and destination. The procedures for acceptance, inspection and discharge shall be defined between supplier and purchaser. 5.6 Freedom from defects The liquid metal shall be reas

37、onably free from dross, inclusions or any other foreign bodies, which may affect metal quality. To this end, the supplier shall implement filling and discharge systems which are designed so as to prevent a degradation of the metal quality. He shall also establish a schedule for ladle cleaning, the f

38、requency of which shall be suited to the above mentioned requirement. 6 Product inspection and testing methods 6.1 Analysis of chemical composition Sampling procedures and analytical tests shall be carried out in accordance with quality assurance procedures (see EN ISO 9000-1). The results shall be

39、traceable to national or international standard reference materials. The capability of the analytical procedures shall be verified. The melt shall be clearly identified with a traceable heat number. The shape of the samples and the sampling conditions for chemical analysis shall be so designed that

40、they are representative of the melt being cast. Each sample shall be taken after the last metallurgical treatment of the metal before departure. Each analytical sample shall be suitably machined and, when analyzed by emission spectrometry, shall be sparked at least twice. The analysis of the sample

41、is the arithmetic mean of the sparks. Each sample shall meet the specified composition limits and the analysis of the melt is the arithmetic mean of all the samples taken from this melt. The producer shall determine and periodically check the analytical accuracy of each element analyzed. He shall be

42、 able to demonstrate the validity of the whole test procedure, including sampling, sample preparation and measurement. The analytical methods are at the discretion of the supplier who shall use methods accepted at the European or international levels. 6.2 Chemical composition If not otherwise specif

43、ied in the order, the composition shall comply with the same standard limits as described in the European Standards for unalloyed aluminium or alloyed aluminium ingots (see EN 576 and prEN 1676). The writing rules for designations and chemical composition, as given in prEN 1780-1, prEN 1780-2 and pr

44、EN 1780-3 shall be applied. 7 Inspection documents By agreement between supplier and purchaser or when specified on the order, the consignment shall be accompanied by a certificate listing the results of the analysis of the chemical elements and any other requirement which may have been requested in

45、 advance. 8 Delivery documents Unless otherwise indicated on the order, the delivery documents shall contain at least the following information: a) the supplier identification; b) the grade of aluminium or aluminium alloy; c) the results of chemical analysis in the same sequence as given in the rele

46、vant standard; d) the ladle numbers and relevant melt numbers.BS EN 577 : 1996 BSI 1996 List of references See national foreword.BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |

47、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the in

48、ternational level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services

49、. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publi