Weathering steel plate is mainly corrosion-resistant and has good welding properties. At present, the technology of this type of steel plate is relatively mature in several large and medium-sized plate mills, such as Anshan Iron and Steel, Wugang, Jigang, Anshan Iron and Steel, etc. If you need this kind of product, it mainly depends on which region you are in, and then find spot transactions in the surrounding steel mills. By adding anti-aging elements, the steel material forms a layer of high-density and good adhesion to the base metal oxide layer of about 50~100μm thick between the rust layer and the base material.

Weathering steel is a high-alloy steel close to ordinary carbon steel and stainless steel. The aluminum alloy element content in weathering steel is not high, but the properties are very good. Weathering steel is widely used in various places such as railways, landscapes, highways and bridges. Today, we invite the professional staff of Shandong Jianshou Steel Sales Co., Ltd. to explain the rust principle and rust treatment of weathering steel to us.

How to rust the weathering steel plate? Rust treatment of weathering steel plate. Generally, it takes 1-2 years for weathering steel to rust naturally. In 2-3 months, there is only a slight yellow rust color, no touch, and it is easy to rust.

1. Rapidly form a stable, uniform color thickness, and rust-red oxide film that is not easy to be wiped off. Under the natural environment of outdoor temperature of 25 degrees Celsius, the rust treatment process is generally completed within 3 hours.

2. Under the rust treatment catalytic reaction plan, the surface that is quickly formed is rough and tactile, making the building more volumetric and quality, enhancing the visual impact and sensory effect, and rapidly improving the effect of landscape design, and improving economic benefits and artistic benefits.

3. It is not affected by the local location, local weather, direction, etc., and the color of the rust-red oxide film formed is uniform and stable.

4. The process is non-corrosive, will not affect the re-formation of the surface rust layer in the later stage, is environmentally friendly and harmless, and does not affect plant growth. It does not affect the interdependence of limited materials and surrounding plants, reflecting the concept of sustainable design.

Precautions for rust treatment:

1. Rust agent can be used directly without adding water. Rust agent has a slight smell. Please wear gloves and protective masks when using it. Prepare a spray bottle in advance to hold the rust agent.

2. If the material has undergone other processing such as cutting, sheet metal bending, arc rolling, etc. in the early stage, check whether there are oil stains left in the process on the surface of the material. If there are, use banana water or banana apple water to clean the oil stains, and then wash the surface with clean water. After the water is done, it is best to clean the oil stains or residues on the surface before spraying the rust agent, and rinse and dry it with water before rust treatment!!

3. Let the steel plate stand vertically. When the surface of the steel plate is dry and free of dirt, use a spray bottle to evenly sprinkle the rust agent on the surface of the steel plate. It is best to spray slowly and more from bottom to top. The surface of the steel plate will immediately show light red within 5 seconds after spraying.

4. After the surface rust remover is sprayed dry, use clean water to remove the residual rust remover on the surface of the steel plate. That is, rinse once with clean water, and try to filter as much clean water as possible. The more the better. It is best to connect a soft rubber water pipe to rinse with clean water, which is more convenient and convenient. Ensure that the residual rust remover is minimized. After the clean water is dry, you can rinse with clean water one or two more times for better results.

5. Let the moisture of the steel plate evaporate naturally. After the surface of the steel plate is completely hardened, the rust color effect will appear, and the rust treatment will be completed.

6. If the steel plate is decorated in the room or half room, if you want the weathering steel film to be thicker and darker, you can stand the steel plate upright, water and sprinkle water several times to accelerate the formation of a thicker and more stable oxide film. You don’t need to spray the rust remover several times. Spraying once is enough.

After the weathering steel surface is rusted, a certain method must be used to dry the rust layer on its surface. It is to prevent the rust from being discharged from the steel in the early stage and make the weathering steel tend to stabilize. It is similar to ordinary spraying in appearance, but ordinary spraying prevents rust by blocking the outside air and the outside of the steel, while rust stabilization promotes the stabilization of rust. There is a big difference in function. If the spraying deteriorates after spraying, it will cause the paint to peel off and rust. In order to maintain the beauty, it has to be sprayed again. However, the rust stabilization solution is to gradually melt the film, stabilize the rust, and gradually expand to the whole, covering a layer of film on the steel surface, and no maintenance is required.