Understanding stainless steel ball passivation is to clean with acid and alkali solution!
stainless steel ball passivation is cleaned with acid and alkali solution. The purpose of pickling is to remove the oxide scale. The heat-processed stainless steel and the welding heat-affected zone will produce a layer of oxide scale, which will affect the corrosion resistance. Acid pickling is usually carried out by two methods: acid pickling and acid paste pickling. Acid pickling is also carried out by dipping and brushing.
stainless steel ball immersion pickling solution formula (Volume fraction): Nitric acid (Density 1. 42g/c㎡) 20%, hydrofluoric acid 5%, the rest is water, and the pickling temperature is room temperature. Brushing acid formula (Volume fraction): 50% hydrochloric acid and 50% water. Acid paste formula: hydrochloric acid (Density 1. 19g/c㎡)100, of water, nitric acid (Density 1. 42g/c㎡)30 ml, bentonite 150g.
dipping method is suitable for smaller equipment and components, immersing equipment and components in pickling solution 25 ~ 45 min, rinse with water after removal; Brushing is suitable for large equipment, use a brush to pick up the pickling solution, until it is white, then rinse with water; Acid paste pickling is also suitable for large equipment. The method is to coat the prepared acid paste on the surface of the weld seam and its heat affected zone of the weldment, stay for a few minutes, and then rinse with clear water.
passivation is carried out after pickling. The formula of passivation solution is: 5ml nitric acid, 1g potassium dichromate and 95ml water. The treatment temperature is room temperature and the treatment time is 1 h. The treatment method is to wipe the passivation solution on the surface of the weld, then flush it with cold water, then scrub it carefully with cloth, then rinse it with hot water and blow it dry. Stainless steel balls are all silvery white after passivation treatment and have high corrosion resistance.
come in many forms, like hollow steel spheres for sale and hollow steel spheres supply, and they all provide efficient solution for our hollow metal spheres for sale needs.
Foshan Dongyuan limited’s goal is to achieve customer satisfaction through excellence in design, supply chain management, manufacturing and repair solutions.
We utilize our expertise to develop services that add value at each phase of thesteel balls suppliers development cycle. We evaluate and implement new strategies in response to changing customer profiles and market conditions.
The hollow steel spheres for sale hollow steel balls for sale is an all-servo system capable of storing hundreds of hollow steel spheres supply process parameters to provide custom hollow metal spheres for sale profiles for each hollow steel spheres for sale type and hollow steel spheres supply configuration.