BS EN 4707-2014 Aerospace series Acid pickling of aluminum and aluminum alloy without hexavalent chromium《航空航天系列 不含六价铬的铝及铝合金酸渍》.pdf
《BS EN 4707-2014 Aerospace series Acid pickling of aluminum and aluminum alloy without hexavalent chromium《航空航天系列 不含六价铬的铝及铝合金酸渍》.pdf》由会员分享,可在线阅读,更多相关《BS EN 4707-2014 Aerospace series Acid pickling of aluminum and aluminum alloy without hexavalent chromium《航空航天系列 不含六价铬的铝及铝合金酸渍》.pdf(14页珍藏版)》请在麦多课文档分享上搜索。
1、BSI Standards PublicationBS EN 4707:2014Aerospace series Acidpickling of aluminum andaluminum alloy withouthexavalent chromiumBS EN 4707:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4707:2014.The UK participation in its preparation was entrusted to Techn
2、icalCommittee ACE/65/-/3, Paints, Surface Finish and ProtectiveTreatments for Aerospace Purposes.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsi
3、ble for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 84529 1ICS 25.220.20; 49.025.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theSt
4、andards Policy and Strategy Committee on 31 May 2014.Amendments issued since publicationDate Text affectedBS EN 4707:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4707 April 2014 ICS 25.220.20; 49.025.20 English Version Aerospace series - Acid pickling of aluminum and aluminum alloy witho
5、ut hexavalent chromium Srie arospatiale - Dcapage acid de lluminium et des alliages dluminium sans chrome hexavalent Luft- und Raumfahrt - Beizen von Aluminium und Aluminiumlegierungen ohne sechswertiges Chrom This European Standard was approved by CEN on 27 December 2013. CEN members are bound to c
6、omply 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 may be obtained on application to the CEN-CENE
7、LEC Management Centre 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-CENELEC Management Centre has the
8、 same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembo
9、urg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
10、 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4707:2014 EBS EN 4707:2014EN 4707:2014 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Purpose of process .4 3 Normative references 4 4 Information for the processor 4 5 Condition of
11、 parts prior to processing 5 6 Process schedule 5 7 Pre-treatments 6 8 Treatment 6 9 Rinsing 7 10 Drying 7 11 Required characteristics and inspection 7 11.1 Parts 7 11.1.1 Inspection before treatment .7 11.1.2 Cleanliness .7 11.1.3 Inspection after treatment .7 11.2 Process .7 12 Quality assurance 8
12、 12.1 Approval of the processor 8 12.2 Process approval .8 12.3 Acceptance .8 13 Health, safety and environmental aspects 8 Annex A (normative) Pickling bath .9 BS EN 4707:2014EN 4707:2014 (E) 3 Foreword This document (EN 4707:2014) has been prepared by the Aerospace and Defence Industries Associati
13、on of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This Eur
14、opean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2014, and conflicting national standards shall be withdrawn at the latest by October 2014. Attention is drawn to the possibility that some of the el
15、ements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this
16、European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia,
17、 Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4707:2014EN 4707:2014 (E) 4 1 Scope This standard specifies the acid pickling of aluminium and aluminium alloys. It is applicable whenever referenced. 2 Purpose of process 2.1 Pre-treatment before penetrant testing/penetrant
18、 inspection. 2.2 Pre-treatment before anodizing. 2.3 Final treatment for parts prior to adhesive bonding application. 2.4 Final treatment before welding or brazing. 2.5 Pre-treatment before chemical milling. 2.6 Final treatment for parts prior to painting application. 2.7 Pre-treatment for parts pri
19、or to surface conversion coatings. 2.8 Desmutting (Blanchiment), after alkaline etching or acid pickling. 3 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition
20、 cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 9100, Quality Management Systems - Requirements for Aviation, Space and Defense Organizations 4 Information for the processor Designation; Number of the material standard and
21、metallurgical condition of the latter; Sequence of operations; Areas to be processed; Treatment. 5 Condition of parts prior to processing Fabrication of the parts shall have been completed before pickling. Toolings: Toolings, fixturings, and metal tooling masking must be protected from the corrosion
22、 and/or free from corrosion or another deterioration prejudicial to the treatment during their use. Design of the toolings and racking must be achieved in order to: avoid any retention of air or solution on the parts, BS EN 4707:2014EN 4707:2014 (E) 5 allow the neutralisation and the suppression of
23、the solutions during rinsing operations, avoid any accidental contact during treatment between parts and tank equipments, and between various parts. Tanks and rackings: Materials used must be resistant to temperature and chemically compatible with the products involved in the sequence of operations.
24、 6 Process schedule The pickling process shall be performed according to Table 1. Table 1 Post Pickling processes Process schedule Penetrant testing/ penetrant inspection Anodizing Adhesive bonding application Welding Or brazing Preparation before masking for chemical milling Painting application Su
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- BSEN47072014AEROSPACESERIESACIDPICKLINGOFALUMINUMANDALUMINUMALLOYWITHOUTHEXAVALENTCHROMIUM 航空航天 系列 不含六价铬
链接地址:http://www.mydoc123.com/p-551848.html