In recent years, vibrating screens have been widely used. Vibrating screen equipment can be divided into three major categories by material: carbon steel, stainless steel and plastic. Among them, stainless steel has attracted particular attention. Why is that?
Stainless steel vibrating screens can be seen everywhere in the food, chemical, pharmaceutical and many other industries, where materials are often corrosive, acidic or alkaline, placing strict demands on the stainless steel material.
When using stainless steel vibrating screen equipment in production, please pay attention to the following points:
1. The corrosion resistance of a stainless steel vibrating screen is relative and conditional. The so-called rust-proof and corrosion-resistant properties of stainless steel are relative to rusting and non-resistance, and apply only under specific conditions (medium, concentration, temperature, impurities, pressure, flow velocity, etc.). So far, no stainless steel is rust-proof and corrosion-resistant in every corrosive environment. Therefore, material selection personnel must choose according to the specific service conditions. Once the stainless steel grade is selected, the user must also use it correctly in line with its characteristics. Only proper material selection plus correct use can achieve the goal of rust-proof and corrosion-resistant performance.
2. When selecting stainless steel for a vibrating screen, both its resistance to general corrosion and its resistance to localized corrosion must be considered. In some aqueous and chemical media, the latter deserves particular attention. This is because material selectors usually focus on the general corrosion resistance of stainless steel, while giving less thought to its sensitivity to localized corrosion under actual service conditions - such as stress corrosion and pitting. Localized corrosion of stainless steel often occurs in environments where general corrosion resistance is excellent, and it frequently leads to sudden failure of vibrating screen components, making it far more dangerous than general corrosion.