MIL-STD-1687A CHG NOTICE 1

Abstract

This standard covers thermal spray processes for machinery repair and corrosion protection of Naval ship machinery, except the spraying of aluminum for corrosion protection which is covered in DOD-STD-2138. This standard does not apply to primary and secondary systems of nuclear ships. Included are requirements for the qualification of thermal spray procedures and operators, requirements and guidance for use of thermal spray material and equipment, quality assurance requirements, and descriptions of applicable qualification tests. <br>The thermal spray processes covered by this standard are: (a) wire spraying of consumable coating material using oxygen-fuel gas, or using two consumable electrodes in an electric arc system, and (b) powder spraying, using oxygen-fuel gas or plasma arc. <br>Thermal spray coatings shall be used only for machinery applications specifically permitted herein (see <a>5.5.2</a>) or for which prior approval has been obtained from the Naval Sea Systems Command (NAVSEA). <br>Requirements of this standard pertain only to the thermal spray coatings applied to ferrous and nonferrous metal substrates.