Satin stainless steel passivation
Stainless steel chemical passivation belongs to the processes to modify appearance and significantly improve the corrosion protection of the treated parts. It is mostly used for the final treatment of machined and heat-shaped stainless steel products. The main goal of this technology is to remove the iron compounds and rest of iron oxides of the surface, especially from the scaling and welding areas. That ensures "free" iron surface contamination remove after the machining and mounting. Those rest impurities make a potential treat (incipient points) and can lead to the early corrosion appearance or even to the deep structural erosion of the material in case they aren't removed on time. Finally the acid passivation creates a thin, uniform transparent oxide layer on the top. That helps protect the surface from the selective corrosion and provides with uniform, pearl-bright (satin) decorative appearance.
Layer properties
- Light satin uniform layer, decorative appearance.
- Parts' surface homogenization, mechanical and chemical impurities removal.
- Attractive, unique feature, difficult to be obtained by any other method.
- Excellent surface passivation, multiply corrosion resistance of the parts and products.
Deposition - dimension
- min 1 μm (according to the customer demands)
Way of processing
- Rack
- Free immersion (max. dimensions: 1 100 x 2 100 x 1 100 mm, max. weight 350 kg.)
Basic material - substrate:
- Stainless steel
Application field:
- Home kitchen appliances - exclusive design of cases and housings.
- Cooking and food utilities for industry - cases for regenerators, ovens, holding cabinets, beverage makers, blast chillers, etc.
- Coupling material - screws, nuts, springs.
- Heat exchangers - coils, flow heater bodies, boilers.
- Sanitary equipment