1、ASD STANDARD NORME ASD ASD NORM prEN 4637 Edition P 1 June 2008 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 763 3565 - www.asd-stan.orgICS: Descriptors: ENGLISH VERSION Aerospa
2、ce series Blast media White corundum Srie arospatiale Produit de projetage Corindon blanc Luft- und Raumfahrt Strahlmittel Edelkorung, Wei This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standard
3、ization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeab
4、ility is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformatio
5、n to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 30 June 2008 Comments should be sent withi
6、n six months after the date of publication to ASD-STAN Material Domain Copyright 2008 by ASD-STAN prEN 4637:20082 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Terms and definitions .3 4 Characteristics.3 Annex A (normative) Characteristics of corundum.4 Annex B (normative) Tyler type
7、 splitting method33 Annex C (normative) Stack Splitting Method.34 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Metallic Material Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual,
8、 this standard has received approval for Publication. prEN 4637:2008 (E) 3 1 Scope This standard specifies the characteristics of white corundum used as blast media for aerospace applications. 2 Normative references The following referenced documents are indispensable for the application of this doc
9、ument. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 565, Test sieves Metal wire cloth, perforated metal plate and electroformed sheet Nominal sizes of openings. ISO 8486-1, Bonded a
10、brasives Determination and designation of grain size distribution Part 1: Macrogrits F4 to F220. ISO 8486-2, Bonded abrasives Determination and designation of grain size distribution Part 2: Microgrits F230 to F2000. 3 Terms and definitions For the purposes of this document, the following terms and
11、definitions apply. 3.1 ds3 max. the grain size (theoretical grain diameter) must not exceed the maximum permissible ds3valueat the 3 % point of the grain size distribution curve 3.2 ds50the median grain size (theoretical grain diameter) must be within the specified tolerances of the ds50valueat the
12、50 % point of the grain size distribution curve 3.3 ds94 min. the grain size (theoretical grain diameter) must at least attain the ds94valueat the 94 % point of the grain size distribution curve 4 Characteristics The characteristics for each product are specified in the following Annexes. prEN 4637:
13、20084 Annex A (normative) Characteristics of corundum DESIGNATION: White corundum F 12 GRAIN SIZE: 1,20 mm to 2,80 mm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOR: White Main use: (for information) Surface preparation Surface reconditioning 1 ORIGINE: Artificial 2 CHEMI
14、CAL COMPOSITION: - Alumina 99 % - Free silica 0,1 % 3 CONTROLED CHEMICAL COMPONENTS: None 4 GRAIN SHAPE: Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2(Knoop hardness) 9 (Mohs hardness) 6 DENSITY: - True with pycnometer - 3 940 kg/m37 GRAIN SIZE DISTRIBUTION: GRAIN SIZE DISTRIBU
15、TION ISO 565 TEST SIEVES - APERTURE 2,80 mm 2 mm 1,40 mm % RESIDUE 0 20 70 TEST SIEVES - APERTURE 1,20 mm % REMAINDER 3 8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. prEN 4637:
16、20085 DESIGNATION: White corundum F 14 GRAIN SIZE: 1 mm to 2,40 mm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOR: White Main use: (for information) Surface preparation Surface reconditioning 1 ORIGINE: Artificial 2 CHEMICAL COMPOSITION: - Alumina 99 % - Free silica 0,1 %
17、 3 CONTROLED CHEMICAL COMPONENTS: None 4 GRAIN SHAPE: Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2(Knoop hardness) 9 (Mohs hardness) 6 DENSITY: - True with pycnometer - 3 940 kg/m37 GRAIN SIZE DISTRIBUTION: GRAIN SIZE DISTRIBUTION ISO 565 TEST SIEVES - APERTURE 2,40 mm 1,70 mm
18、 1,20 mm % RESIDUE 0 20 70 TEST SIEVES - APERTURE 1 mm % REMAINDER 3 8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. prEN 4637:20086 DESIGNATION: White corundum F 16 GRAIN SIZE:
19、850 m to 2 mm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOR: White Main use: (for information) Surface preparation Surface reconditioning 1 ORIGINE: Artificial 2 CHEMICAL COMPOSITION: - Alumina 99 % - Free silica 0,1 % 3 CONTROLED CHEMICAL COMPONENTS: None 4 GRAIN SHAPE:
20、 Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2(Knoop hardness) 9 (Mohs hardness) 6 DENSITY: - True with pycnometer - 3 940 kg/m37 GRAIN SIZE DISTRIBUTION: GRAIN SIZE DISTRIBUTION ISO 565 TEST SIEVES - APERTURE 2 mm 1,40 mm 1 mm % RESIDUE 0 20 70 TEST SIEVES - APERTURE 850 m % R
21、EMAINDER 3 8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. prEN 4637:20087 DESIGNATION: White corundum F 20 GRAIN SIZE: 710 m to 1,70 mm DESCRIPTION: fused aluminium oxide ASPECT
22、: MATERIAL: Ground corundum COLOR: White Main use: (for information) Surface preparation Surface reconditioning 1 ORIGINE: Artificial 2 CHEMICAL COMPOSITION: - Alumina 99 % - Free silica 0,1 % 3 CONTROLED CHEMICAL COMPONENTS: None 4 GRAIN SHAPE: Angular and massive grain 5 HARDNESS (typical values):
23、 2 100 kg/mm2(Knoop hardness) 9 (Mohs hardness) 6 DENSITY: - True with pycnometer - 3 940 kg/m37 GRAIN SIZE DISTRIBUTION: GRAIN SIZE DISTRIBUTION ISO 565 TEST SIEVES - APERTURE 1,70 mm 1,18 mm 850 m % RESIDUE 0 20 70 TEST SIEVES - APERTURE 710 m % REMAINDER 3 8 METHOD OF DETERMINATION OF GRAIN SIZE
24、DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. prEN 4637:2008 8 DESIGNATION: White corundum F 22 GRAIN SIZE: 600 m to 1,40 mm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOR: White Main use:
25、 (for information) Surface preparation Surface reconditioning 1 ORIGINE: Artificial 2 CHEMICAL COMPOSITION: - Alumina 99 % - Free silica 0,1 % 3 CONTROLED CHEMICAL COMPONENTS: None 4 GRAIN SHAPE: Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2(Knoop hardness) 9 (Mohs hardness) 6
26、DENSITY: - True with pycnometer - 3 940 kg/m37 GRAIN SIZE DISTRIBUTION: GRAIN SIZE DISTRIBUTION ISO 565 TEST SIEVES - APERTURE 1,40 mm 1 mm 710 m % RESIDUE 0 20 70 TEST SIEVES - APERTURE 600 m % REMAINDER 3 8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling m
27、ethods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. prEN 4637:20089 DESIGNATION: White corundum F 24 GRAIN SIZE: 500 m to 1,18 mm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOR: White Main use: (for information) Surface preparation Surface recondi
28、tioning 1 ORIGINE: Artificial 2 CHEMICAL COMPOSITION: - Alumina 99 % - Free silica 0,1 % 3 CONTROLED CHEMICAL COMPONENTS: None 4 GRAIN SHAPE: Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2(Knoop hardness) 9 (Mohs hardness) 6 DENSITY: - True with pycnometer - 3 940 kg/m37 GRAIN S
29、IZE DISTRIBUTION: GRAIN SIZE DISTRIBUTION ISO 565 TEST SIEVES - APERTURE 1,18 mm 850 m 600 m % RESIDUE 0 25 65 TEST SIEVES - APERTURE 500 m % REMAINDER 3 8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPEC
30、IAL INSTRUCTIONS: None. prEN 4637:200810 DESIGNATION: White corundum F 30 GRAIN SIZE: 430 m to 1 mm DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOR: White Main use: (for information) Surface preparation Surface reconditioning 1 ORIGINE: Artificial 2 CHEMICAL COMPOSITION: -
31、 Alumina 99 % - Free silica 0,1 % 3 CONTROLED CHEMICAL COMPONENTS: None 4 GRAIN SHAPE: Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2(Knoop hardness) 9 (Mohs hardness) 6 DENSITY: - True with pycnometer - 3 940 kg/m37 GRAIN SIZE DISTRIBUTION: GRAIN SIZE DISTRIBUTION ISO 565 TEST
32、SIEVES - APERTURE 1 mm 710 m 500 m % RESIDUE 0 25 65 TEST SIEVES - APERTURE 425 m % REMAINDER 3 8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. prEN 4637:2008 11 DESIGNATION: Whi
33、te corundum F 36 GRAIN SIZE: 360 m to 850 m DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOR: White Main use: (for information) Surface preparation Surface reconditioning 1 ORIGINE: Artificial 2 CHEMICAL COMPOSITION: - Alumina 99 % - Free silica 0,1 % 3 CONTROLED CHEMICAL C
34、OMPONENTS: None 4 GRAIN SHAPE: Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2(Knoop hardness) 9 (Mohs hardness) 6 DENSITY: - True with pycnometer - 3 940 kg/m37 GRAIN SIZE DISTRIBUTION: GRAIN SIZE DISTRIBUTION ISO 565 (m) TEST SIEVES - APERTURE 850 600 425 % RESIDUE 0 25 65 TEST
35、 SIEVES - APERTURE 355 % REMAINDER 3 8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. prEN 4637:2008 12 DESIGNATION: White corundum F 40 GRAIN SIZE: 300 m to 710 m DESCRIPTION: fu
36、sed aluminium oxide ASPECT: MATERIAL: Ground corundum COLOR: White Main use: (for information) Surface preparation Surface reconditioning 1 ORIGINE: Artificial 2 CHEMICAL COMPOSITION: - Alumina 99 % - Free silica 0,1 % 3 CONTROLED CHEMICAL COMPONENTS: None 4 GRAIN SHAPE: Angular and massive grain 5
37、HARDNESS (typical values): 2 100 kg/mm2(Knoop hardness) 9 (Mohs hardness) 6 DENSITY: - True with pycnometer - 3 940 kg/m37 GRAIN SIZE DISTRIBUTION: GRAIN SIZE DISTRIBUTION ISO 565 (m) TEST SIEVES - APERTURE 710 500 355 % RESIDUE 0 30 65 TEST SIEVES - APERTURE 300 % REMAINDER 3 8 METHOD OF DETERMINAT
38、ION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. prEN 4637:200813 DESIGNATION: White corundum F 46 GRAIN SIZE: 250 m to 600 m DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOR:
39、 White Main use: (for information) Surface preparation Surface reconditioning 1 ORIGINE: Artificial 2 CHEMICAL COMPOSITION: - Alumina 99 % - Free silica 0,1 % 3 CONTROLED CHEMICAL COMPONENTS: None 4 GRAIN SHAPE: Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2(Knoop hardness) 9 (M
40、ohs hardness) 6 DENSITY: - True with pycnometer - 3 940 kg/m37 GRAIN SIZE DISTRIBUTION: GRAIN SIZE DISTRIBUTION ISO 565 (m) TEST SIEVES - APERTURE 600 425 300 % RESIDUE 0 30 65 TEST SIEVES - APERTURE 250 % REMAINDER 3 8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for
41、 sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. prEN 4637:200814 DESIGNATION: White corundum F 54 GRAIN SIZE: 210 m to 500 m DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOR: White Main use: (for information) Surface preparation Surfa
42、ce reconditioning 1 ORIGINE: Artificial 2 CHEMICAL COMPOSITION: - Alumina 99 % - Free silica 0,1 % 3 CONTROLED CHEMICAL COMPONENTS: None 4 GRAIN SHAPE: Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2(Knoop hardness) 9 (Mohs hardness) 6 DENSITY: - True with pycnometer - 3 940 kg/m
43、37 GRAIN SIZE DISTRIBUTION: GRAIN SIZE DISTRIBUTION ISO 565 (m) TEST SIEVES - APERTURE 500 355 250 % RESIDUE 0 30 65 TEST SIEVES - APERTURE 212 % REMAINDER 3 8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9
44、SPECIAL INSTRUCTIONS: None. prEN 4637:200815 DESIGNATION: White corundum F 60 GRAIN SIZE: 180 m to 430 m DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOR: White Main use: (for information) Surface preparation Surface reconditioning 1 ORIGINE: Artificial 2 CHEMICAL COMPOSITI
45、ON: - Alumina 99 % - Free silica 0,1 % 3 CONTROLED CHEMICAL COMPONENTS: None 4 GRAIN SHAPE: Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2(Knoop hardness) 9 (Mohs hardness) 6 DENSITY: - True with pycnometer - 3 940 kg/m37 GRAIN SIZE DISTRIBUTION: GRAIN SIZE DISTRIBUTION ISO 565
46、(m) TEST SIEVES - APERTURE 425 300 212 % RESIDUE 0 30 65 TEST SIEVES - APERTURE 180 % REMAINDER 3 8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None. prEN 4637:200816 DESIGNATION: Wh
47、ite corundum F 70 GRAIN SIZE: 150 m to 360 m DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOR: White Main use: (for information) Surface preparation Surface reconditioning 1 ORIGINE: Artificial 2 CHEMICAL COMPOSITION: - Alumina 99 % - Free silica 0,1 % 3 CONTROLED CHEMICAL
48、COMPONENTS: None 4 GRAIN SHAPE: Angular and massive grain 5 HARDNESS (typical values): 2 100 kg/mm2(Knoop hardness) 9 (Mohs hardness) 6 DENSITY: - True with pycnometer - 3 940 kg/m37 GRAIN SIZE DISTRIBUTION: GRAIN SIZE DISTRIBUTION ISO 565 (m) TEST SIEVES - APERTURE 355 250 180 % RESIDUE 0 25 65 TES
49、T SIEVES - APERTURE 150 % REMAINDER 3 8 METHOD OF DETERMINATION OF GRAIN SIZE DISTRIBUTION: according to ISO 8486-1 (for sampling methods, see Annexes B and C of this standard). 9 SPECIAL INSTRUCTIONS: None prEN 4637:2008 17 DESIGNATION: White corundum F 80 GRAIN SIZE: 130 m to 300 m DESCRIPTION: fused aluminium oxide ASPECT: MATERIAL: Ground corundum COLOR
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