In corrosive environments, the damage caused by chemical or electrochemical interactions between metals and surrounding media is called corrosion.
In corrosive environments, the damage caused by chemical or electrochemical interactions between metals and surrounding media is called corrosion. In corrosive environments, corrosion is also caused when stainless steel is not properly selected. Corrosion has many classification methods:
1. According to the nature of the action can be divided into chemical corrosion and electrochemical corrosion.
2. According to the form of corrosion, it can be divided into general (comprehensive, uniform) corrosion. The so-called general corrosion, the corrosion is distributed on the entire stainless steel surface, so-called local corrosion pitting, crevice corrosion, stress corrosion, corrosion fatigue, selective corrosion, Scour corrosion and so on.
3. According to the environment and conditions of corrosion, it can be divided into atmospheric corrosion, industrial water corrosion, soil corrosion, acid, alkali, salt corrosion, seawater corrosion, high temperature corrosion, (including liquid metal, molten salt, gas corrosion).
What are the precautions for storing seamless steel pipes?
1. Choose a suitable venue and warehouse; 2. Reasonable stacking, advanced first; 3. Packaging and protective layers of protective materials; 4. Keep warehouse clean and strengthen material maintenance.
Significance of Proximity Effect on the Production of High-frequency Longitudinal Welded Pipes
In addition to the skin effect, the proximity effect is another feature of current. When alternating currents of equal magnitude and opposite directions pass through two adjacent conductors, the current will flow through the adjacent inner surface layers of the two conductors, and when the two conductors pass When alternating currents of the same size and direction, the current will flow through the outer surface layers of the two conductors. The proximity effect of the current makes the current in the conductors further uneven. It is this unevenness that makes the high-frequency welded pipe(ERW).
Summary of Advantages and Disadvantages of High-Frequency Welded Pipe Forming Methods
Advantages and disadvantages of high-frequency welded pipe forming methods
