Stainless steel acid treatment

Details Stainless steel acid treatment Stainless steel acid treatment

C - Chemistry, Metallurgy

23

C

C23C 22/50 (2006.01) C23G 1/08 (2006.01)

Patent

CA 2200587

The invention includes a method for cleaning and passivating a stainless steel surface comprising: 1) contacting the surface with 15-48 ml/liter of an acid formulation comprising between about 1 and 60 % acid component, about 1-15 % surfactant, and between about 39 and 98 % water; 2) maintaining contact to dislodge and remove residue from the surface; 3) continuing contact to complex free iron ions liberated from the surface to form an oxide film on the surface; and 4) continuing contact to precipitate the complexed ions into the oxide film.

Méthode de nettoyage et de passivation d'une surface d'acier inoxydable consistant à: 1) exposer la surface à une formulation acide de 15 à 48 ml/litre comprenant de 1 à 60 % environ d'un composant acide, de 1 à 15 % environ d'un tensio-actif et de 39 à 98 % environ d'eau; 2) maintenir ce contact pour déloger et extraire les résidus de la surface; 3) maintenir ce contact pour complexer les ions fer libres libérés de la surface pour former sur cette surface un film oxyde; et 4) maintenir ce contact pour précipiter les ions complexés dans le film oxyde.

Affiliated with

Also associated with

Rating

Stainless steel acid treatment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stainless steel acid treatment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stainless steel acid treatment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1660345