Metal Black Oxide Coating

If rust or scale is present on the part additional steps such as acid pickling or alkaline de scaling may have to be.

Metal black oxide coating. We have specialized in black oxide for over twenty five years. Black oxide is a conversion coating formed by a chemical reaction formed when parts are dipped into an alkaline salt solution. How black oxide coating works. Black oxide can also provide corrosion resistance for equipment gear or parts when the treated metal is oiled.

Offers several different types of metal finishings and coatings to suit the needs of our customers. Is the largest black oxide shop in the continental united states. Our services include processess such as black oxide finishing phosphate coating passivation ndt blasting and deburring. Other names for black oxide are.

Black oxide or blackening is a conversion coating for ferrous materials stainless steel copper and copper based alloys zinc powdered metals and silver solder. Was the first metal finishing and fastener sorting company in the u s. Black oxide does not exhibit a smoothing effect like plating or painting. Acton metal processing corp a specialty metal finishing job shop has been providing superior quality and service since 1960 and is a recognized industry leader in the application of black coatings on metal.

The part shall show no evidence of pitting intergranular attack or etching. Black penetrate black magic black n and gun bluing. Black oxide does not effect the dimension of the part. One of its advantages over other coatings is.

It is used to add mild corrosion resistance for appearance and to minimize light reflection. The point of the black oxide process is to create magnetite fe3o4 an alloy of iron and oxygen molecules on the surface of the metal. Dipping a metal part into a heated alkaline liquid for a specific period of time triggers the chemical process that forms magnetite on the part s surface. The black oxide coating shall cover the basis metal completely and shall be a uniform shade of black.

Black oxide is a conversion coating formed by a chemical reaction with the iron in the metal to form an integral protective surface. Some hardened and specialized steel alloys may blacken to a deeper black finish when activated using our black oxide activator. Black oxide is a type of conversion coating that provides metals with a matte black appearance and dimensional stability. To achieve maximal corrosion resistance the black oxide must be impregnated with oil or wax.

To receive iso 14001 certification. Contrasted to an applied coating which bonds to the metal but does not react chemically a black oxide conversion coating is applied to ferrous alloys when oxidizing salts react with the iron to. What is black oxide.