BS EN 1395-7-2007 Thermal spraying — Acceptance inspection of thermal spraying equipment —Part 7 Powder feed systems.pdf
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1、BRITISH STANDARD BS EN 1395-7:2007 Thermal spraying Acceptance inspection of thermal spraying equipment Part 7: Powder feed systems The European Standard EN 1395-7:2007 has the status of a British Standard ICS 25.220.20 ? BS EN 1395-7:2007 This British Standard was published under the authority of t
2、he Standards Policy and Strategy Committee on 28 February 2007 BSI 2007 ISBN 978 0 580 50275 0 National foreword This British Standard was published by BSI. It is the UK implementation of EN 1395-7:2007. This standard together with BS EN 1395-1, BS EN 1395-2, BS EN 1395-3, BS EN 1395-4, BS EN 1395-5
3、 and BS EN 1395-6 supersedes BS EN 1395:1996. The UK participation in its preparation was entrusted to Technical Committee STI/40, Thermally sprayed inorganic finishes. A list of organizations represented on STI/40 can be obtained on request to its secretary. This publication does not purport to inc
4、lude all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1395-7
5、January 2007 ICS 25.220.20Supersedes EN 1395:1996 English Version Thermal spraying - Acceptance inspection of thermal spraying equipment - Part 7: Powder feed systems Projection thermique - Contrle dacceptation du matriel de projection thermique - Partie 7: Systmes dalimentation de poudre Thermische
6、s Spritzen - Abnahmeprfungen fr Anlagen zum thermischen Spritzen - Teil 7: Pulverfrdersysteme This European Standard was approved by CEN on 23 December 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the
7、 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 Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Germa
8、n). 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Re
9、public, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN
10、DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1395-7:2007: E EN 1395-7:2007 (E) 2 Contents Page Foreword3 1Scope 4 2Normat
11、ive references4 3Terms and definitions .4 4Conditions of acceptance inspection4 5Procedure of acceptance inspection.5 6Designation 5 7Inspection report5 Annex A (informative) Inspection report for a powder feed unit (initial test/retest).6 A.1Function test 6 A.2Set value on the spraying equipment wh
12、en testing the powder feed unit:.6 A.3Mass flow inspection test .6 A.4Powder de-mixing test Particle size distribution.7 A.5Measuring equipment capability7 Bibliography8 ? EN 1395-7:2007 (E) 3 Foreword This document (EN 1395-7:2007) has been prepared by Technical Committee CEN/TC 240 “ Thermal spray
13、ing and thermally sprayed coatings” , the secretariat of which is held by DIN. This 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 July 2007, and conflicting national standards shall be withdrawn at t
14、he latest by July 2007. This document together with EN 1395-1, 1395-2, 1395-3, 1395-4, 1395-5 and 1395-6 supersedes EN 1395:1996. EN 1395 consists of the following Parts, under the general title Thermal spraying Acceptance inspection of thermal spraying equipment: Part 1: General requirements; Part
15、2: Flame spraying including HVOF; Part 3: Arc spraying; Part 4: Plasma spraying; Part 5: Plasma spraying in chambers; Part 6: Manipulator systems; Part 7: Powder feed systems. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound
16、 to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Swi
17、tzerland and United Kingdom. ? EN 1395-7:2007 (E) 4 1 Scope This European Standard specifies requirements for the acceptance inspection of thermal spraying equipment in the case of powder feed units used in spray jobs to produce thermally sprayed coatings of reproducible quality. This part should be
18、 used in conjunction with EN 1395-1, which includes general requirements and explanations of procedures. This part should be used in addition to EN 1395-2 when carrying out acceptance inspection for flame and/or HVOF (high velocity oxygen-fuel) spraying equipment, or EN 1395-4 when carrying out acce
19、ptance inspection for plasma spraying equipment. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including an
20、y amendments) applies. EN 657:2005, Thermal spraying Terminology, classification EN 1274:2004, Thermal spraying Powders Composition, technical supply conditions 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 657:2005 apply. 4 Conditions of acceptance
21、 inspection 4.1 General Clause 4 and clause 5 specify state of the art technology in thermal spraying equipment and the minimum requirements concerning stable parameter settings and maintenance according to the classes given in Annex A. 4.2 Powder feed unit 4.2.1 General The powder feed unit shall b
22、e suitable for operation with the spraying equipment to be tested. This means the carrier gas pressure and flow shall operate under the specific condition of the spraying process, e.g. in the low pressure atmosphere in the chamber or against the high pressure in the combustion chamber of the burner.
23、 The class of the powder feed unit has to correlate with the class of the spraying equipment itself. The unit shall permit uniform processing of the spraying powder for which it is designed. It shall be possible to adjust the powder feed rate. The set values shall be constant and reproducible, a pre
24、condition for this being adequate flow and constant carrier gas pressure or actuating air pressure, as appropriate. 4.2.2 Stand-alone powder feed unit This type of powder feed unit uses a carrier gas. A change in the primary gas flow of the spraying equipment, as indicated on the control panel, shal
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