AS-1627.5-2003.pdf
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1、AS 1627.52003 Australian Standard Metal finishingPreparation and pretreatment of surfaces Part 5: Pickling AS 1627.5 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 20 May 2008 This Australian Standard was prepared by Committee MT-009, Metal Finishing. It was approved on behalf of the Council of Standa
2、rds Australia on 23 May 2003 and published on 11 July 2003. The following are represented on Committee MT-009: Australian Aluminium Council Australian Institute of Metal Finishing Australasian Chamber of Commerce and Industry Australian Industry Group Australian Paint Manufacturers Federation Depart
3、ment of Defence Galvanizers Association of Australia Institute of Materials Engineering Australia The Royal Australian Chemical Institute Society of Automotive EngineersAustralasia Telstra Corporation Keeping Standards up-to-date Standards are living documents which reflect progress in science, tech
4、nology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include
5、 any amendments which may have been published since the Standard was purchased. Detailed information about Standards can be found by visiting the Standards Australia web site at .au and looking up the relevant Standard in the on-line catalogue. Alternatively, the printed Catalogue provides informati
6、on current at 1 January each year, and the monthly magazine, The Global Standard, has a full listing of revisions and amendments published each month. We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies
7、or ambiguities. Contact us via email at .au, or write to the Chief Executive, Standards Australia International Ltd, GPO Box 5420, Sydney, NSW 2001. This Standard was issued in draft form for comment as DR 02449. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 20 May 2008 AS 1627.52003 Australian Stand
8、ard Metal finishingPreparation and pretreatment of surfaces Part 5: Pickling Originated as CK 9.51965. Previous edition AS 1627.51994. Third edition 2003. COPYRIGHT Standards Australia International All rights are reserved. No part of this work may be reproduced or copied in any form or by any means
9、, electronic or mechanical, including photocopying, without the written permission of the publisher. Published by Standards Australia International Ltd GPO Box 5420, Sydney, NSW 2001, Australia ISBN 0 7337 5355 8 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 20 May 2008 AS 1627.52003 2 2 PREFACE This
10、 Standard was prepared by the Australian members of the Joint Standards Australia/Standards New Zealand Committee MT-009, Metal Finishing, to supersede AS 1627.51994, Metal finishingPreparation and pretreatment of surfaces, Part 5: Pickling, descaling and oxide removal. After consultation with stake
11、holders in both countries, Standards Australia and Standards New Zealand decided to develop this Standard as an Australian Standard rather than an Australian/New Zealand Standard. During the revision of this Standard, the Committee changed the title to Metal finishing Preparation and pre-treatment o
12、f surfaces, Part: 5 Pickling. The objective of this Standard is to revise the technology in the Standard so that it meets the current practices, which are being applied in Australian industry. This Standard is Part 5 of a series of Standards covering the preparation and pretreatment of metal surface
13、s used in metal finishing. The series is as follows: AS 1627 Metal finishingPreparation and pretreatment of surfaces 1627.0 Part 0: Method selection guide 1627.1 Part 1: Removal of oil, grease and related contamination 1627.2 Part 2: Power tool cleaning 1627.4 Part 4: Abrasive blast cleaning 1627.5
14、Part 5: Pickling 1627.6 Part 6: Chemical conversion treatment of metals 1627.9 Part 9: Pictorial surface preparation standards for painting steel surfaces The terms normative and informative have been used in this Standard to determine the application of the appendix to which they apply. A normative
15、 appendix is an integral part of a Standard, whereas an informative appendix is only for information and guidance. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 20 May 2008 3 AS 1627.520033 CONTENTS Page FOREWORD4 SECTION 1 SCOPE AND GENERAL 1.1 SCOPE.5 1.2 REFERENCED DOCUMENTS.5 1.3 DEFINITIONS.6 1.
16、4 SURFACE CONDITION REQUIREMENTS AFTER TREATMENT6 1.5 SAFETY PRECAUTIONS 7 1.6 DISPOSAL OF WASTE SOLUTIONS .8 SECTION 2 PROCEDURES 2.1 GENERAL.9 2.2 EQUIPMENT 9 2.3 PICKLING AND DESCALING METHODS FOR FERROUS MATERIALS 9 2.4 CLEANING AND OXIDE REMOVAL FROM ALUMINIUM AND ALUMINIUM ALLOYS .10 2.5 CLEAN
17、ING AND OXIDE REMOVAL FROM COPPER AND COPPER ALLOYS11 2.6 CLEANING AND OXIDE REMOVAL FROM ZINC AND ZINC ALLOYS.13 2.7 CLEANING AND OXIDE REMOVAL FROM NICKEL AND NICKEL ALLOYS14 2.8 RINSING AND DRYING15 2.9 FINAL CLEANING 15 2.10 CORROSION PROTECTION.15 APPENDICES A PURCHASING GUIDELINES16 B WET SMUT
18、 TEST 17 C PRETREATMENT OF IRON OR STEEL TO REDUCE THE RISK OF HYDROGEN EMBRITTLEMENT.18 D POST-COATING TREATMENTS OF IRON OR STEEL TO REDUCE THE RISK OF HYDROGEN EMBRITTLEMENT .21 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 20 May 2008 AS 1627.52003 4 4 FOREWORD Pickling is the removal of surface
19、oxides (scale) and similar contaminants from a metal by immersion in strong chemical solution, usually an acid. It is used as pre-treatment before processes such as hot dip galvanizing, electroplating, auto catalytic plating and application of conversion coatings. It is also easily adapted to contin
20、uous applications, so used for removal of scale from large tonnage objects such as bars, blooms, sheet, strip, wire and tubing. The surface produced by pickling is generally smooth, and may not be suitable for the application of most heavy duty coatings, e.g. inorganic zinc and high-build epoxy coat
21、ings, or for metal spray coatings. Corrosion inhibitors used in rinse solutions to prevent flash rusting of a pickled surface may deposit surface residues, which are incompatible with some coatings. Coating manufacturers or suppliers should be consulted before the application of coating systems to p
22、ickled surfaces is carried out. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 20 May 2008 5 AS 1627.52003 .au Standards Australia 5 STANDARDS AUSTRALIA Australian Standard Metal finishingPreparation and pretreatment of surfaces Part 5: Pickling S E C T I O N 1 S C O P E A N D G E N E R A L 1.1 SCOPE
23、This Standard sets out procedures for preparing metal surfaces by immersion, or by other means, employing chemical solutions to remove oxidation products (scale), corrosion products and related foreign materials. The Standard includes acid and alkaline descaling for ferrous materials and also includ
24、es acid descaling for non-ferrous materials as follows: (a) Steels. (b) Cast iron. (c) Aluminium and aluminium alloys. (d) Copper and copper alloys. (e) Zinc and zinc alloys. (f) Nickel and nickel alloys. NOTE: Advice and recommendations on information to be supplied by the purchaser at the time of
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