The use parts of Threaded Rods And Eye Bolts ( https://www.chinaweigao.com/product/bolt/threaded-rods-and-eye-bolts.html ) are very important, so it is necessary to ensure that the surface layer of the bolts is not easy to rust, so as to reasonably increase the service life and safety factor.
The whole process of rust is actually a whole process of air oxidation. Avoiding rust is to better avoid or delay the entire process of air oxidation. The common methods are hot-dip galvanizing, blackening and other organic chemical methods.
1. Hot-dip galvanizing, hot-dip galvanizing is divided into cold spray galvanizing and hot-dip galvanizing. Cold spray zinc is a way to passivate the zinc layer on the surface of stud bolts using organic chemistry to avoid corrosion. The hot-dip galvanizing process is more complicated than the cold-sprayed zinc process. Compared with the cold-sprayed galvanized process, the actual effect of anti-rust treatment is stronger.
2. The black key is used for Hexagon Flange Bolt ( https://www.chinaweigao.com/product/bolt/hexagon-socket-head-bolt.html ) above 8.8. After blackening, a layer of more reliable oil will appear on the surface of the bolt, which will completely seal the bolt. Reasonably block the gas.
3. Apply a prepreg topcoat without reducing ingredients, such as epoxy urethane or unmodified epoxy prepreg topcoat, and apply it on the surface of the stud bolt. Apply architectural coatings without volatile acids. Vibrating machinery should use solvent-free paint as much as possible.
4. When applying the melamine prepreg topcoat, the drying temperature and drying time should be adjusted. The drying temperature should be slightly higher than 130°C (such as 135°C), and the drying time should exceed 180 minutes, so the whole process must be strictly followed. Especially in the seasons of high temperature and low temperature, the rotating vibrating screen is defined according to the anti-rust treatment. The dry (dry) torque of the basic paint in the chemical plant sample may not be sufficient. The motor has a special internal appearance.
5. For stainless steel plate stud bolts, because stainless steel plate itself has a strong anti-rust treatment effect, but it will rust in a very unique natural environment, so it is necessary to develop plating and air oxidation film on the surface of stainless steel plate stud bolts. Reasonable gas protection.