The consequences of not paying attention to cleaning the magnetic surface of precast concrete magnet
After long-term use of precast concrete magnet, the magnetic surface will be covered with residues such as concrete, iron filings, and dirt. Without cleaning off these residues, the magnet plate will not be in sufficient contact with the steel surface of the precast concrete pouring bed. This will greatly reduce the magnetic force, and the magnetic box will not be able to grasp the steel surface and thus unable to control the concrete precast formwork. Over time, magnet shuttering will lose its adsorption function and be unable to complete its work.
If the precast concrete magnet can be cleaned in time after each use of the magnet plate residue, the service life of the magnet can be greatly increased. And after being cleaned well, it can also increase efficiency for next use. The boss of the prefabricated factory certainly doesn't want to see the workers still tinkering and cleaning the dirt on the shuttering magnets while rushing to the project schedule.
How to thoroughly clean the magnetic surface of precast concrete magnet?
It is not difficult to thoroughly clean the magnetic surface of a precast concrete magnet. In most cases we recommend that you use a stainless steel knife to scrape off the concrete on it. Because the stainless steel knife is used, it will not be attracted by the magnet, allowing you to easily scrape off the residue on the magnetic surface. You can also purchase a popular magnetic cartridge cleaning machine on the market. Just place the magnetic cartridge in the groove of the cleaning machine, close the cover and do a few push-pull movements to clean the precast magnets disk. It is recommended that you wear protective gloves to protect your fingers when scraping away concrete residue.
For fine dust particles, a pneumatic gun can be used to blow dust off the surface. It is also a good method to use high-pressure water to remove dirt. This can remove the residue in the gaps of the magnetic box. After cleaning, wipe the magnet dry with a rag, place it in a safe area to air dry, and then store it away.
The magnet plate is assembled by stacking metal strips and magnets, and will rust after long-term use. Physical polishing can remove rust, but using rust remover is more scientific and can better protect the magnetic box. It is recommended that you use WD-40 rust remover to remove rust from the magnet plate. Put the magnetic box into a container filled with WD-40 rust remover, wait for 2 minutes and then fish out the magnetic box. You will see that the rust on the magnet plate has been basically removed. You can also buy bottled rust remover, spray the spray nozzle on the rusted area, let it sit for a few minutes and then wipe the rusted area with a towel to remove the rust. During operation, please be careful not to let the rust remover splash into your eyes or nose, and keep a safe distance from the nozzle.
After cleaning, how to maintain it?
The outer layer of the precast wall production magnet is wrapped in a stainless steel shell, so it is also necessary to maintain the shell of the magnet to avoid rust. First, check whether the magnet plate is flat after cleaning. If there are stubborn residues that are difficult to remove, you can use a polisher to polish them. After the bottom is flat, apply a protective layer on its surface, such as paint, nickel, zinc, epoxy resin, etc., to isolate air and moisture, thereby reducing the risk of rust. Applying a suitable anti-rust oil or anti-rust agent to the surface of the magnet can provide an additional layer of protection. Place the precast magnet in a cool and dry place. If necessary, use desiccant and moisture-proof bags to ensure the dryness of the storage environment.
Precautions
Strong magnetic fields can interfere with or damage electronics, so magnets should be kept away from electronic devices. The ambient temperature for use and storage of magnets should not be higher than 80°C. NdFeB magnets are sensitive to temperature, and high temperatures may permanently reduce their magnetism. Prolonged exposure of magnets to high temperatures should be avoided. Certain chemicals can damage the magnet's surface and its magnetic properties. Try to avoid contact with corrosive chemicals in the environment where magnets are used and stored. Although NdFeB magnets are extremely magnetic, they are relatively brittle and prone to shattering on impact. Be careful when handling magnets and avoid strong collisions. If it is not used for a long time, it can be wrapped with antistatic material to reduce dust accumulation and also help protect the magnet from physical damage. Then they are placed uniformly on stainless steel carts and stored in the warehouse.
How to prevent precast concrete shuttering magnet from getting moldy?
Generally speaking, the magnets themselves do not become moldy. Mold is a type of microorganism that requires organic matter to grow, and magnets are inorganic materials that do not provide the nutrients microorganisms need to grow. However, if there are organic material residues attached to the surface of the magnet, such as paper, cloth fragments, etc. left in a humid environment, and the environmental conditions are suitable, then the surface of these organic materials may become moldy.
In addition, rust may occur if the magnet's plating or coating is damaged, causing the iron or other rust-prone metals inside the magnet to come into contact with moist air. Rust, while not mold, can cause red or brown spots on the surface of the magnet, which can be confused with the appearance of mold growth.
Make sure the magnet is in a dry environment and properly maintain the surface of the magnet to avoid the development of mold or rust.
