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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1395 : 1996 The Eur
2、opean Standard EN 1395 : 1996 has the status of a British Standard ICS 25.220.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Thermal spraying Acceptance inspection of thermal spraying equipment Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:05:25 GMT+00:00 2006,
3、 Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 December 1996 BSI 1996 The following BSI references relate to the work on
4、this standard: Committee reference STI/40 Draft for comment 94/501271 DC ISBN 0 580 26281 2 BS EN 1395 : 1996 Amendments issued since publication Amd. No.DateText affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee S
5、TI/40, Thermally sprayed inorganic finishes, upon which the following bodies were represented: Aluminium Federation British Iron and Steel Producers Association Ministry of Defence Society of Motor Manufacturers and Traders Limited Thermal Spraying Association Welding Institute Licensed Copy: sheffi
6、eldun sheffieldun, na, Sun Oct 29 10:05:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1395 : 1996 BSI 1996i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 13953 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:05:25 GMT+00:00 2006, Unco
7、ntrolled Copy, (c) BSI ii BSI 1996 BS EN 1395 : 1996 1)In preparation. National foreword This British Standard has been prepared by Technical Committee STI/40 and is the English language version of EN 1395 : 1996 Thermal spraying Acceptance inspection of thermal spraying equipment published by the E
8、uropean Committee for Standardization (CEN). Cross-reference Publication referred toCorresponding British Standard EN 1274 : 1996BS EN 1274 : 19971)Thermal spraying Powders Composition Technical supply conditions Compliance with a British Standard does not of itself confer immunity from legal obliga
9、tions. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:05:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 Copyright re
10、served to CEN members Ref. No. EN 1395 : 1996 E EUROPEAN STANDARDEN 1395 NORME EUROPE ENNE EUROPA ISCHE NORM March 1996 ICS 25.220.20 Descriptors: Thermal projections, equipment, acceptability, quality control, workshops, plasma : physics, electric arcs, flames, metal coatings, tests English version
11、 Thermal spraying Acceptance inspection of thermal spraying equipment Projection thermique Contro le dacceptation du mate riel de projection thermique Thermisches Spritzen Abnahmepru fungen fu r Anlagen zum thermischen Spritzen This European Standard was approved by CEN on 1996-02-10. CEN members ar
12、e 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 may be obtained on application to
13、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 Central Secretariat has the same st
14、atus 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. Licensed Copy: sheffieldun sheffieldun, na,
15、Sun Oct 29 10:05:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 1395: 1996 BSI 1996 Foreword This European Standard has been prepared by Technical Committee CEN/TC 240, Thermal spraying and thermally sprayed coatings, of which the secretariat is held by DIN. This European Standard shall be
16、given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 1996, and conflicting standards shall be withdrawn at the latest by September 1996. According to the CEN/CENELEC Internal Regulations, the national standards organization
17、s of the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. Contents Page Foreword 1Scope3 2Normative r
18、eferences3 3Purpose of acceptance inspection3 4Conditions for acceptance inspection3 5Designation3 6Principles of acceptance inspection3 6.1Plasma spraying equipment3 6.2Arc spraying system4 6.3Flame spraying equipment for powder, wire, rod and cord4 7Procedure of acceptance inspection4 7.1Plasma sp
19、raying equipment4 7.2Arc spraying equipment5 7.3Flame spraying equipment using powder, wire, rod or cord5 8Validity of inspection reports and retests6 8.1Validity of inspection report6 8.2Retests6 Annex A (informative) Inspection report for plasma spraying equipment7 Annex B (informative) Inspection
20、 report for arc spraying equipment9 Annex C (informative) Inspection report for flame spraying equipment using wire, rod or cord10 Annex D (informative) Inspection report for flame spraying equipment using spraying powder11 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:05:25 GMT+00:00 20
21、06, Uncontrolled Copy, (c) BSI Page 3 EN 1395: 1996 BSI 1996 1 Scope This European Standard specifies requirements for the acceptance inspection of thermal spraying equipment including plasma, arc and flame spraying plants used to produce high-quality sprayed coatings. 2 Normative references This Eu
22、ropean Standard incorporates by dated or undated reference, provisions 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 publicati
23、ons apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN 1274Thermal spraying Powders Composition Technical supply conditions 3 Purpose of acceptance inspection Acceptance inspecti
24、on as part of a quality assurance system for spraying equipment serves to provide proof, that the equipment is suitable for producing sprayed coatings of uniform quality in particular to satisfy the requirements of this standard. This European Standard is intended to form the basis of technical deli
25、very conditions. Proof of the suitability of equipment for thermal spraying is to be provided by the supplier when delivering a spray unit for the first time, but may also be verified by the user as described in clause 6. The values thereby obtained and any other data of significance in deciding on
26、the suitability of the equipment shall be recorded on report sheets or in an inspection report as shown in annexes A, B, C and D. The spraying equipment may be considered adequately designed if all the requirements specified in clause 6 are satisfied in the tests described in clause 7. 4 Conditions
27、for acceptance inspection Spraying equipment shall comply with the relevant safety specifications. They shall be installed so that the spraying process is not impaired by other production equipment or environmental conditions. The gas supply provided shall be adequate in volume and purity. Care shal
28、l be taken to ensure that no interference by fluctuations of the main power supply can influence the set electrical values. Every equipment shall be supplied with an operating and maintenance instruction manual. The equipment shall be tested with the gun in a fixed position and in a manner agreed be
29、tween purchaser and manufacturer. 5 Designation Acceptance inspection of thermal spraying equipment shall be designated for example: Acceptance inspection according to EN 1395. 6 Principles of acceptance inspection 6.1 Plasma spraying equipment 6.1.1 Electrical power The maximum power level for cont
30、inuous operation of the plasma spraying system shall be maintained during continuous duty, a precondition for this being that the spraying gun is designed for such performance. 6.1.2 High-voltage ignition device Other components and functions of the spraying equipment shall not be affected by operat
31、ion of the high-voltage ignition device. 6.1.3 Cooling water circuit The cooling water circuit shall be adequately sized and should include devices to maintain and control the water quality required as well as devices to measure water temperature and water flow. 6.1.4 Gases A plasma spraying unit sh
32、all be designed to permit spraying with the gases or gas mixture specified by the user. 6.1.5 Plasma nozzle Processing of the spraying powder shall be possible without this producing any disturbing deposits on and in the nozzle. 6.1.6 Powder feed unit The following requirements shall be met by the p
33、owder feed unit. a) The unit shall be a stand alone system, even if it consists of several components, and function irrespective of the setting of the gas volume flow rate or the type of electrical control of the spraying device. b) It shall be possible to control the powder feed rate. The set value
34、s shall be constant and reproducible. The test shall be carried out using the powder defined by the parties concerned. c) The unit shall permit uniform feed of the powder mixtures without demixing whilst processing the powder in accordance with the suppliers specifications. d) The feeding of fine gr
35、ained spraying powders, see EN 1274, shall be possible. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:05:25 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 1395: 1996 BSI 1996 1)Maximum permissible error expressed by percentage of measuring span. 6.1.7 Control Unit/Monitoring It sha
36、ll be possible to monitor and control, read clearly and correctly, by means of instruments, any deviations from the set values of gas pressure, gas volume flow rate, powder feed rate and arc amperage during the spraying process. The arc voltage shall also be indicated. These values shall be recorded
37、 during acceptance inspection. The limits of error of the measuring instruments shall not exceed 5 % for all set values and at least has to correspond to class 2,51)for excess pressure measuring equipment responsive to electrical measuring devices (see also 7.1.7). It shall be ensured that, in the c
38、ase of lack of water supply or excessive deviations from the selected parameters, the system shuts down automatically. 6.2 Arc spraying system 6.2.1 Electrical power The maximum level for continuous operation of an arc spraying system shall be maintained during continuous duty. A precondition for th
39、is being that the diameter of the spraying wires is adequate and that the spraying head is designed for such power ratings. 6.2.2 Atomizing gas feed The atomizing gas tube and the control device shall be designed to ensure undisturbed operation. 6.2.3 Nozzle system The nozzle system (contact tubes a
40、nd air nozzle) shall permit a constant arc to be maintained and provide atomization without causing deposits that might disturb operation. 6.2.4 Spraying wire feed system A continuously controllable, and reproducible feed of the wires shall be provided, a precondition for this being adequate constan
41、t air pressure and supply of electrical power. 6.2.5 Monitoring It shall be possible to monitor, read clearly and correctly, by means of instruments, any deviations from the set values of atomizing gas pressure, current and voltage during the spraying process. These values shall be recorded during a
42、cceptance inspection. The limits of error of the measuring instruments shall not exceed 5 % for all set values and shall correspond at least to class 2,51)in the case of pressure gauges, or in the case of electrical measuring instruments (see also 7.2.4). 6.3 Flame spraying equipment for powder, wir
43、e, rod and cord 6.3.1 Gases Flame spraying equipment shall permit spraying with the combustible gases, atomizing gas, if any, and carrier gas, if any, for which it was designed. 6.3.2 Nozzles Processing of the spraying material shall be possible without any visibly disturbing deposits on the burner
44、nozzle and air nozzle. 6.3.3 Spraying material feed unit The spraying material feed unit shall comply with following conditions: The unit shall permit uniform processing of the consumables for which it is designed. It shall be possible to adjust the spraying material feed rate. The set values shall
45、be constant and reproducible, a precondition for this being adequate and constant carrier gas pressure or actuating air pressure or supply of electrical power as appropriate. 6.3.4 Monitoring It shall be possible to monitor, read clearly and correctly, by means of instruments, any deviations from th
46、e set values of gas pressure and gas volume flow rate during the spraying process. These values shall be recorded during acceptance inspection. The limits of error of the measuring instruments shall not exceed 5 % for all set values and shall correspond at least to class 2,51)(see also 7.3.5). 7 Pro
47、cedure of acceptance inspection Spraying equipment may be deemed to have been adequately designed for all relevant spraying applications and for use with all customary spraying materials required for the spraying process if they conform to the following requirements: 7.1 Plasma spraying equipment 7.
48、1.1 Electrical power Proof of the power rating required shall be given by: 20 min of spraying with the parameters recommended for aluminium oxide as supplied by equipment manufacturer. During the test, the following items will be examined: a) gas control; b) electrical control; c) cooling temperatur
49、e. Limits of deviation: see annex A; Class A, B, C. Upon stabilization, the deviation of the voltage (variable parameter) from the set value shall not exceed 3 % (Class A), 6 % (Class B) and 12 % (Class C). The time it takes for the stabilization to be reached shall be recorded. 7.1.2 High-voltage ignition device The high-voltage ignition device shall be deemed to meet the requirements given in 6.1.2 if it does not interfere with any appliances and functions of the spraying equipment during the test as specified in 7.1.1. Licensed Copy: sheffield