Keywords
Citation
(1998), "Filling porosity or voids in articles formed by spray deposition", Anti-Corrosion Methods and Materials, Vol. 45 No. 3. https://doi.org/10.1108/acmm.1998.12845cad.001
Publisher
:Emerald Group Publishing Limited
Copyright © 1998, MCB UP Limited
Filling porosity or voids in articles formed by spray deposition
Filling porosity or voids in articles formed by spray deposition
Keywords Patents, Spray deposition, Sprayform holdings, Voiding
In GB Patent 2310866, Sprayform Holdings Ltd describe a method of infill into porous regions or void regions of spray deposited articles with molten material of a differing composition which subsequently solidifies. The molten material flows to infill the porous or void regions under the influence of applied pressure or capillary type action. Typically, the sprayed material is molten metallic material, and the void porosity filling material is also metallic in composition but having a lower melting point. The material of the second composition, e.g. lead, may be introduced into these regions (e.g. of sprayed steel). Alternatively, the material of the second composition may be embedded within the sprayed deposit of material of the first composition. In a further embodiment, a spray of the first and second material, e.g. steel and aluminium, is sprayed simultaneously. The system gives increased resistance to corrosion.