How to keep the screw bright and not rusty

A hardware company in Dongguan is a professional manufacturer of stainless steel fittings. Recently, the company has produced a batch of stainless steel 303 material and six angle screw fittings. It needs stainless steel passivation to prevent the surface of the workpiece from rust and the salt fog for 48 hours.
Stainless steel 303 is an austenitic type of easy to cut stainless steel and wear resistant acid steel, and it contains 0.15% sulfur, so it is easy to cut. After receiving the workpiece, caymeng technician, according to the stainless steel passivation process, first needs to use caymeng brand fast cleaning agent to clean the workpiece surface first, and caymeng brand fast cleaning agent can effectively improve the gloss of the workpiece surface. And quickly remove the oil contamination on the surface of the workpiece to achieve the cleaning effect.
After cleaning, the 303 material of stainless steel needs to be treated with sulfur removal. It is necessary to use the caymeng disulfide removal agent to remove sulfur and soak the water for 5 minutes at normal temperature to remove the feeling of cleaning. Then, according to the requirements of the stainless steel 303 and the salt mist for 48 hours, the technician adopts the caymeng brand unrust iron passivation solution ID3000. This product is suitable for the passivation of austenitic stainless steel and duplex stainless steel, which can greatly improve the anti rust ability of the material. The passivation film produced by the micro chemical reaction of stainless steel passivating liquid with the metal element on the stainless steel surface only takes place in the molecular structure change, and therefore uses Kay. The stainless steel passivation solution treated by ID3000 has the characteristics of no change in color and size, and the test performance of neutral salt mist can improve the perfect effect of 5-20 times. After washing – stainless steel passivation, the workpiece also needs to be closed by caymeng sealant to improve the anti rust ability of the product, heat the sealing agent to 45 degrees, and then put six corners of the screw into the container for 5 minutes, remove the workpiece, blow dry, and do not need further water treatment.
The most important and critical time after a series of processes is to see the effect of salt fog, put in the salt mist machine 48 hours after the six corners of the screw, drops of water, bright a new, the perfect clearance of the sample.