How to prevent rust when cold-drawn steel pipes are stacked for a long time

First of all, we must choose a suitable storage place, clean it, have good ventilation, and be free of debris and harmful gases. Steel surfaces should be kept clean to avoid corrosion. If it is a relatively expensive metal product, you can consider storing it in a sealed warehouse, but pay attention to ventilation. For precision steel pipes, use opaque coverings for protection during storage to avoid rust and aging. The covering should be strong and reliable to ensure ventilation and prevent water vapor from collecting on the surface. When storing, there must be supports and a certain distance from the ground to ensure ventilation. When stacking, pay attention to the number of layers to avoid local stress on the pipe ends and damage to the anti-corrosion layer. At the same time, we must also pay attention to pickling precision steel pipes, which can use two methods: chemical and electrolysis. Chemical cleaning can clean the surface thoroughly, but it may not be able to remove dirt from the fine crevices. First, we need to know how to prevent rust. At the same time, it is also important to clean the surface of precision steel pipes. Solvents or emulsions can be used to remove oil and dust.

Secondly, we need to know what uses precision steel pipes have and what can be done after maintenance. Precision steel pipes can be used in manufacturing machinery and equipment, automobiles, aerospace, and other fields. To extend the life of precision steel pipes, we can choose suitable sites and warehouses to store them, keep the steel pipes clean, do not stack them with materials that are corrosive to the steel pipes and stack different types of steel pipes separately.

Thirdly, reasonable stacking should be done according to varieties and specifications, and materials of different types should be stacked separately to prevent confusion and mutual corrosion. The bottom of the stack should be elevated, solid, and flat to prevent the material from getting damp or deformed. Steel sections stacked in the open air must have wooden pads or strips of stone underneath, and the stacking surface should be slightly tilted to facilitate drainage. Pay attention to placing the materials straight to prevent bending and deformation. At the same time, a certain channel should be left between stacks. The inspection channel is generally 0.5m. The access channel depends on the size of the material and the transportation machinery and is generally 1.5 to 2.0m.

Finally, packaging and protective layers to protect materials are important measures to prevent materials from rusting. Preservatives or other plating and packaging applied before the steel factory leaves the factory must be protected during transportation and loading and unloading, and must not be damaged, which can extend the storage period of the materials. Before putting materials into storage, care should be taken to prevent them from being exposed to rain or mixed with impurities. Materials that have been exposed to rain or stained should be cleaned using different methods according to their properties. For example, wire brushes can be used for high hardness, and cloth, cotton, etc. can be used for low hardness. things. After the materials are put into storage, they should be inspected frequently. If there is any rust, the rust layer should be removed. For high-quality steel, precision steel pipes, alloy thin steel plates, thin-walled pipes, high-frequency welded steel pipes, alloy steel pipes, etc., the internal and external surfaces need to be coated with anti-rust oil after rust removal before storage. For steel pipes that are severely corroded, they should not be stored for a long time after rust removal and should be used as soon as possible.

The above methods are the simplest ways to extend the life of precision steel pipes. We only need to follow these methods to make precision steel pipes bring us great help during use. I hope you can try it to make our precision steel pipes more durable.