ISO 14919:2015 pdf download

ISO 14919:2015 pdf download

ISO 14919:2015 pdf download.Thermal spraying — Wires, rods and cords for flame and arc spraying — Classification — Technical supply conditions
1 Scope
This International Standard specifies requirements for classification of metal and non-metal wires (solid and cored), rods, cords processed by means of thermal spraying, especially by arc and flame spraying.
2 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 cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 10474:2013, Steel and steel products — Inspection documents
ISO 544:2011, Welding consumables — Technical delivery conditions for filler materials and fluxes — Type of product, dimensions, tolerances and markings
3 Classification
3.1 Classification according to the manufacturing process and resulting structure
The thermal spray materials are classified according to the manufacturing process and the resulting structure, as given in Table 1.
5 Properties
5.1 Mechanical properties
The mechanical properties of the wires shall be suitable for trouble-free feeding and processing. If required, the mechanical properties should be specified among manufacturer, supplier and customer. The temper of thermal spray wire should be suitable for uninterrupted feeding on thermal spray equipment. NOTE Very hard, poorly tempered thermal spray wires are difficult to handle, hard to straighten, and cause excessive wear on vital gun parts such as drive rolls, guides and contact tubes or nozzles. On the other hand, too soft thermal spray wires (e.g. aluminium, tin, zinc) may cause problems with feeding.
5.2 Surface properties
The surface of the thermal spray wire shall be smooth and free of corrosion products, slivers and splits, shrinkholes, splices and scales, damages as well as neckings, welds and laps. Moreover, foreign matter that would adversely affect the thermal spray material’s characteristics or properties of the sprayed coating is to be avoided. For arc spraying, martensitic and ferritic steel thermal spray wire shall be protected with a plating of copper to prevent corrosion during storage. The plating shall cover the whole wire surface without visible defects. For alloys number 5.7 (Table 7) two variants are available: 5.7a) with copper plating and 5.7b) with another suitable plating. This condition is also valid for 5.16a) and 5.16b). A very small amount of lubricant that will not degrade the sprayed coating may be applied to the thermal spray wire to permit smooth and low-friction feeding through the thermal spray equipment. Using cored wires manufactured according to Clause 3, Table 1, should not be lubricated or treated by any liquids. The surface of cords shall be smooth and free of neckings. The surface of rods shall be free of neckings and without scratches. Rods shall not exhibit end kinks or end-to-end warpage that could adversely affect rod feed.