VCFERROUS - HOT BLACKENING SALT
VCFERROUS is a hot blackening salt used in the process of creating a black oxide finish on metal surfaces, particularly steel. This process, also known as hot black oxide or hot chemical blackening, involves immersing the metal parts in a heated solution of blackening salts, typically composed of sodium hydroxide, nitrites, and nitrates, at temperatures around 275-295°F (135-146°C) (Dorsetware Limited) (Manufacturing on Demand).
The hot blackening process involves several key steps:
1. Surface Preparation: The metal is thoroughly cleaned to remove any contaminants like dirt, grease, or rust.
2. Immersion in Blackening Solution: The cleaned metal is submerged in the hot blackening solution, where the surface reacts chemically to form a black oxide layer, primarily magnetite (Fe3O4). #VCFERROUS - HOT BLACKENING SALT Manufacturer.
