DEFSTAN 02-828/1(2000) : 2000
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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THERMAL SPRAY DEPOSITION OF METALS AND CERAMICS FOR ENGINEERING PURPOSES
16-12-2005
12-01-2013
TITLE PAGE
SCOPE
FOREWORD
Sponsorship
Conditions of Release
General
MOD Tender or Contract Process
Related Documents
Health and Safety
Warning
CONTENTS
SECTION 1 - PROCESSES AND EQUIPMENTS
1.1 Flame Spraying, Unfused Coatings
1.2 Flame Spraying, Fused Coatings
1.3 Electric Arc
1.4 Plasma, Non-transferred Arc
1.5 Plasma, Transferred Arc
1.6 High Velocity Oxy-Fuel
1.7 Equipment Costs and Operating Costs
1.8 Deposition Rates
1.9 Portability of Equipment
1.10 Bond Strengths
1.11 Porosity and Density of Deposits
1.12 Application and Limitations of Processes
SECTION 2 - APPROVAL OF PROCEDURES
2.1 Qualification of Procedures
SECTION 3 - APPROVAL OF OPERATORS
SECTION 4 - TEST METHODS
4.1 Visual Examination
4.2 Non-destructive Examination
4.3 Coating Thickness
4.4 Hardness
4.5 Bend Test
4.6 Bond Strength
4.7 Metallographic Examination
SECTION 5 - CONSUMABLES
5.1 Selection of Coating
5.2 Shrinkage Characteristics
5.3 Bond Coatings
5.4 Buffer Coatings
5.5 Graded Coatings
5.6 Care and Storage of Consumables
SECTION 6 - DESIGN ASPECTS
6.1 Access
6.2 Edge and End Preparations
6.3 Stress Concentrations
6.4 Thickness of Coatings
SECTION 7 - PREPARATION FOR COALING
7.1 Preliminary Examination
7.2 Previous Coatings
7.3 Cleaning
7.4 Preliminary Machining
7.5 Surface Preparation
7.6 Use of Coolant
7.7 Surface Hardened Components
7.8 Grit Blasting
7.9 Chilled Iron Grit
7.10 Aluminium Oxide Grit
7.11 Compressed Air Supply
7.12 Masking
7.13 Clearance of Grit
SECTION 8 - DEPOSITION PROCEDURE
8.1 Cleanliness after Preparation
8.2 Interval between Preparation and Spraying
8.3 Masking for Spraying
8.4 Pre-heating
8.5 Spraying Technique
8.6 Dust and Fume Removal
8.7 Continuity of Spraying
8.8 Temperature Control
8.9 Inspection after Spraying
8.10 Cooling on Completion
SECTION 9 - DISTORTION
9.1 Grit Blasting
9.2 Pre-heating and Spraying
9.3 Fusing and Cooling
SECTION 10 - SPRAY FUSED COATINGS
10.1 Torch Fusing
SECTION 11 - SEALING
11.1 Sealing Materials
11.2 Methods
SECTION 12 - FINISHING
12.1 Grinding
12.2 Machining
12.3 Removal of Overspray
12.4 Hand Finishing
SECTION 13 - ACCEPTANCE STANDARDS
13.1 Visual
13.2 Dye-penetrant Inspection
13.3 Dimensional and Surface Finish Check
SECTION 14 - REPAIR OF DEFECTIVE COATINGS
SECTION 15 - PACKAGING
SECTION 16 - RECORDS
ANNEX A - RELATED DOCUMENTS
ANNEX B - DEFINITIONS AND ABBREVIATIONS
ANNEX C - TYPICAL USE OF COATINGS IN NAVAL APPLICATIONS
ANNEX D - SPECIMEN PROCEDURE
ANNEX E - TEST METHOD FOR ADHESION OR COHESIVE STRENGTH OF
FLAME-SPRAYED COATINGS
ALPHABETICAL INDEX
States the requirements for thermal spray deposition of coatings using automatic or semi automatic methods onto engineering components.
| DevelopmentNote |
This is a redesignation of NES 828. (01/2001)
|
| DocumentType |
Standard
|
| PublisherName |
UK Ministry of Defence Standards
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| DEFSTAN 02-304(PT4)/2(2002) : 2002 | SHAFTING SYSTEMS AND PROPULSORS - PART 4: REQUIREMENTS FOR REPAIR OF MAIN PROPULSION SHAFTING |
| BS 4495:1969 | Recommendations for the flame spraying of ceramic and cermet coatings |
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