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1、 Reference number ISO 14344:2002(E) ISO 2002 INTERNATIONAL STANDARD ISO 14344 First edition 2002-07-15 Welding and allied processes Flux and gas shielded electrical welding processes Procurement guidelines for consumables Soudage et techniques connexes Procds de soudage lectrique sous protection gaz
2、euse et par flux Lignes directrices relatives lapprovisionnement en produits consommables Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:21:03 MDTNo reproduction or networkin
3、g permitted without license from IHS -,-,- ISO 14344:2002(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on th
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6、rm the Central Secretariat at the address given below. ISO 2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from e
7、ither ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.ch Web www.iso.ch Printed in Switzerland ii ISO 2002 All rights reserved Copyright International
8、 Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:21:03 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 14344:2002(E) ISO 2002 All rights reserved iii Foreword ISO (the I
9、nternational Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee
10、has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnica
11、l standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bod
12、ies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be held responsible for i
13、dentifying any or all such patent rights. International Standard ISO 14344 was prepared in collaboration with the International Institute of Welding which has been approved by the ISO Council as an international standardizing body in the field of welding. Copyright International Organization for Sta
14、ndardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:21:03 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with
15、 ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:21:03 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 14344:2002(E) ISO 2002 All rights reserved 1 Welding and allied processes Flux and gas shielded electrical weld
16、ing processes Procurement guidelines for consumables 1 Scope This International Standard is a tool for communication between a purchaser and a supplier of welding consumables within quality systems as might, for example, be based upon ISO 9001. This International Standard, together with an ISO or ot
17、her recognized welding consumable standard, provides a method for preparing those specific details needed for welding consumable procurement which consist of the following: a) the welding consumable classification (selected from the pertinent ISO or other welding consumable standard); b) the lot cla
18、ssification (selected from Clause 5 of this International Standard); c) the testing schedule (selected from Clause 6 of this International Standard). Selection of the specific welding consumable classification, lot classification and testing schedule will depend upon the requirements of the applicat
19、ion for which the welding consumable is being procured. 2 Normative reference The following normative document contains provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of this
20、 publication do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to
21、 applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 9001, Quality management systems Requirements 3 Terms and definitions In production, the components of welding consumables are divided into discrete, predetermined quantities so that satisfactory test
22、s with a sample from that quantity will establish that the entire quantity meets specification requirements. These quantities, known by such terms as heats, lots, blends, batches and mixes, vary in size according to the manufacturer. For identification purposes, each manufacturer assigns a unique de
23、signation to each quantity. This designation usually consists of a series of numbers or letters, or combinations thereof, which will enable the manufacturer to determine the date and time (or shift) of manufacture, the type and source of the raw materials used, and the details of the procedures used
24、 in producing the welding consumable. This designation stays with the welding consumable and can be used to identify the material later, in those cases in which identification is necessary. For the purposes of this International Standard, the following terms and definitions apply. 3.1 dry batch quan
25、tity of dry ingredients mixed at one time in one mixing vessel Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:21:03 MDTNo reproduction or networking permitted without license
26、 from IHS -,-,- ISO 14344:2002(E) 2 ISO 2002 All rights reserved NOTE Liquid binder, when added to a dry batch, produces a wet mix. A dry batch may be divided into smaller quantities, in which case addition of the liquid binder produces as many wet mixes as there were smaller quantities. 3.2 dry ble
27、nd two or more dry batches from which quantities of each are combined proportionately, then mixed in a mixing vessel to produce a larger quantity in which the ingredients are as uniformly dispersed as they would have been had the entire quantity been mixed together at one time in one large mixer NOT
28、E A dry blend, as in the case of a dry batch, may be used singly or divided into smaller quantities which, when the liquid binder is added, produce one or more wet mixes. 3.3 wet mix combination of liquid binder and a dry batch or dry blend, or a portion thereof, mixed at one time in one mixing vess
29、el 3.4 heat for consumable inserts, solid electrodes and rods, core wire for covered electrodes, and the sheath (strip or tubing of tubular cored electrode wire and rod), one of the following, depending on the method of melting and refining of the metal: the material obtained from one furnace melt,
30、where slag-metal or gas-metal reactions occur in producing the metal (e.g., open hearth, electric arc, basic oxygen, argon-oxygen processes); an uninterrupted series of melts from one controlled batch of metals and alloying ingredients in one melting furnace under the same melting conditions, each m
31、elt conforming to the chemical composition range approved by the purchaser of the material (i.e., the producer of the welding consumable) where significant chemical reactions do not occur in producing the metal (e.g., induction melting in a controlled atmosphere or in a vacuum); an uninterrupted ser
32、ies of remelts in one furnace under the same remelting conditions using one or more consumable electrodes produced from a heat, as defined, each remelt conforming to the chemical composition range approved by the purchaser of the material (i.e., the producer of the welding consumable) in processes i
33、nvolving continuous melting and casting (e.g., consumable electrode remelt). 4 Identification 4.1 General Identification of consumable inserts, solid electrode wire and strip, rods, core wire for covered electrodes, and the sheath (strip or tubing) of tubular cored electrodes and rods shall be appli
34、ed as listed in 4.2 to 4.5. 4.2 Heat Number Solid wire, electrode core wire, rod, strip and consumable inserts, identified by heat number, shall consist of material from a single heat of metal. 4.3 Controlled chemical composition Solid wire, electrode core wire, rod, strip and consumable inserts ide
35、ntified by controlled chemical composition, rather than by heat number, shall consist of mill coils of one or more heats from which samples have been taken for chemical analysis. The results of the analysis of each sample shall be within the manufacturers composition limits for that material. Coils
36、from mills that do not permit spliced-coil practice need be sampled on only one end. Coils from mills that permit spliced-coil practice shall be sampled on both ends and shall have no more than a single splice per coil. Copyright International Organization for Standardization Provided by IHS under l
37、icense with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 08:21:03 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 14344:2002(E) ISO 2002 All rights reserved 3 4.4 Covering mix In the production of covered electrodes, the covering mix sha
38、ll be identified in one of the following two manners: a) wet mix: a covering identified by wet mix shall consist of a single wet mix for each lot of electrodes; b) controlled chemical composition: a covering identified by controlled chemical composition (rather than by wet mix) shall consist of one
39、or more wet mixes and subjected to sufficient tests to assure that all wet mixes within the lot are equivalent. These tests shall include chemical analysis, the results of which shall fall within the manufacturers acceptance limits. The identification of the test procedure and the results of the tes
40、ts shall be recorded. 4.5 Core ingredients In the production of tubular cored electrode wire or rod (flux cored or metal cored welding consumables), the core ingredients shall be identified in one of the following manners: a) dry blend: core ingredients identified by dry blend shall consist of a sin
41、gle dry batch or dry blend; b) controlled chemical composition: core ingredients identified by controlled composition shall consist of one or more dry blends and be subjected to sufficient tests to assure that all dry blends within the lot are equivalent. These tests shall include chemical analysis,
42、 the results of which shall fall within the manufacturers acceptance limits. The identification of the test procedure and the results of the tests shall be recorded. 5 Lot classification 5.1 Bare solid electrode wires and strips, rods and consumable inserts 5.1.1 Class S1 A Class S1 lot of bare soli
43、d electrodes and rods or consumable inserts is the manufacturers standard lot, as defined in the manufacturers quality assurance programme. 5.1.2 Class S2 A Class S2 lot of bare solid electrodes and rods or consumable inserts is the quantity, not exceeding 45 000 kg, of one classification, size, for
44、m and temper produced in 24 h of consecutively scheduled production (i.e., consecutive normal work shifts). Class S2 solid electrodes and rods or consumable inserts shall be produced from one heat (4.2) or from material identified by controlled chemical composition (4.3). 5.1.3 Class S3 A Class S3 l
45、ot of bare solid electrodes and rods or consumable inserts is the quantity of one size produced in one production schedule from one heat (4.2). Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resal
46、e, 04/22/2007 08:21:03 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 14344:2002(E) 4 ISO 2002 All rights reserved 5.1.4 Class S4 A class S4 lot of bare solid electrodes and rods or consumable inserts is the quantity, not exceeding 45 000 kg, of one classification, siz
47、e, form and temper produced under one production schedule. Class S4 solid electrodes and rods or consumable inserts shall be produced from one heat (3.4) or from material identified by controlled chemical composition (4.3). 5.2 Tubular cored electrodes and rods 5.2.1 Class T1 A Class T1 lot of tubul
48、ar cored electrodes and rods is the manufacturers standard lot, as defined in the manufacturers quality assurance programme. 5.2.2 Class T2 A Class T2 lot of tubular cored electrodes and rods is the quantity, not exceeding 45 000 kg, of one classification and size produced in 24 h of consecutively scheduled production (i.e., consecutive normal work shifts). Class T2 tubular cored electrodes and rods shall be produced from tube or strip identified by heat number (4.2) or by controlled chemical composition (4.3). Identif