Development of preservative compound VNIINM-31/89 for drill bit protection

Abstract

Enamel paints MS-17 and KhV-110 are used to protect drill bits during transportation and storage. But this requires the surface to be prepared carefully, which is often difficult under production conditions. Some of the promising anticorrosion agents are film-forming inhibited petroleum compounds (FIPC) - materials derived from high-temperature petroleum products blended with corrosion inhibitors and a solvent. Such compounds are used to protect unpainted and painted surfaces; this shortens the preservation process, and generally dispenses which depreservation. Further, they can be used to protect moist, wet, greasy, and rusted surfaces, and concealed inner areas where paint is difficult to apply. The purpose of this work was to obtain a film-forming inhibited petroleum compound that has high protective properties, can be applied on unprepared metal surfaces, and meets the following requirements: drill bit protection time during transportation and storage at least 24 months, coat adhesion to the metal at least of force 2, drop point > 90{degrees}C, the material must be applied by pneumatic spraying, in toxicity and inflammability the compound must be of class three, and coat drying time at 60{degrees}C not more than 12 min. The anticorrosion agents are described.