If you want stainless steel seamless elbows to last longer, you must do this!
The measures to extend the service life of stainless steel seamless elbows need to be combined with the optimization of the entire process of corrosion prevention, installation, and maintenance!
1. Strengthen surface protection
Coating treatment:
Spray anti-corrosion coating or electroplating protective film to block medium erosion (such as chemical pipelines coming into contact with acidic and alkaline media).
Hot dip galvanizing is suitable for high temperature and high humidity environments, enhancing its antioxidant capacity.
Alloy upgrade:
Select high-performance stainless steel containing molybdenum and nickel elements (such as 316L) to enhance pitting corrosion resistance.
2. Precise installation and sealing
Welding process control:
Using argon arc welding to ensure uniform welding and avoid intergranular corrosion in the heat affected zone.
Selection of sealing material:
Use polytetrafluoroethylene gaskets or rubber gaskets at the connection to prevent corrosion caused by medium leakage.
Pressure test after installation:
Apply 1.5 times the working pressure to detect leaks, and maintain the pressure for 30 minutes without any pressure drop.
3. Periodic maintenance management
Regular cleaning: Rinse the inside of the pipeline every 3 months to remove scaling (especially when transporting media that are prone to sedimentation).
Corrosion inspection: Use a wire brush to remove floating rust, with a focus on inspecting the back of the elbow and the weld area.
Sandblasting rust removal: Sandblasting is used to treat thick rust layers, forming a uniform rough surface to enhance coating adhesion.
4. Use environmental control
Temperature and humidity monitoring: The ambient temperature is maintained within the range of -20 ℃~150 ℃, and the humidity is ≤ 60% to slow down electrochemical corrosion.
External protection: Install shock-absorbing brackets to prevent mechanical impact from causing cracking or deformation of bends.
The inspection frequency needs to be increased for blind spots such as the back of stainless steel seamless elbows, where the corrosion rate can reach three times that of flat areas!
If you want stainless steel seamless elbows to last longer, you must do this!
The measures to extend the service life of stainless steel seamless elbows need to be combined with the optimization of the entire process of corrosion prevention, installation, and maintenance!
1. Strengthen surface protection
Coating treatment:
Spray anti-corrosion coating or electroplating protective film to block medium erosion (such as chemical pipelines coming into contact with acidic and alkaline media).
Hot dip galvanizing is suitable for high temperature and high humidity environments, enhancing its antioxidant capacity.
Alloy upgrade:
Select high-performance stainless steel containing molybdenum and nickel elements (such as 316L) to enhance pitting corrosion resistance.
2. Precise installation and sealing
Welding process control:
Using argon arc welding to ensure uniform welding and avoid intergranular corrosion in the heat affected zone.
Selection of sealing material:
Use polytetrafluoroethylene gaskets or rubber gaskets at the connection to prevent corrosion caused by medium leakage.
Pressure test after installation:
Apply 1.5 times the working pressure to detect leaks, and maintain the pressure for 30 minutes without any pressure drop.
3. Periodic maintenance management
Regular cleaning: Rinse the inside of the pipeline every 3 months to remove scaling (especially when transporting media that are prone to sedimentation).
Corrosion inspection: Use a wire brush to remove floating rust, with a focus on inspecting the back of the elbow and the weld area.
Sandblasting rust removal: Sandblasting is used to treat thick rust layers, forming a uniform rough surface to enhance coating adhesion.
4. Use environmental control
Temperature and humidity monitoring: The ambient temperature is maintained within the range of -20 ℃~150 ℃, and the humidity is ≤ 60% to slow down electrochemical corrosion.
External protection: Install shock-absorbing brackets to prevent mechanical impact from causing cracking or deformation of bends.
The inspection frequency needs to be increased for blind spots such as the back of stainless steel seamless elbows, where the corrosion rate can reach three times that of flat areas!