Design and Installation of Aluminum Alloy Sacrificial Anodes for Drilling Rigs

Chang Qing 13939157916

Design and Installation of Aluminum Alloy Sacrificial Anodes for Drilling Platforms

‌The main models of aluminum alloy sacrificial anodes include the following‌:

1. ‌Al-Zn-In-Cd alloy sacrificial anode‌ (Model 11), with chemical composition including 2.5-4.5% zinc, 0.018-0.050% indium, 0.005-0.02% cadmium, etc.‌1.
2. ‌Al-Zn-In-Sn alloy sacrificial anode‌ (Model 12), with chemical composition including 2.2-5.2% zinc, 0.020-0.045% indium, 0.018-0.035% tin, etc.‌1.
3. ‌Al-Zn-In-Si alloy sacrificial anode‌ (Model 13), with chemical composition including 5.5-7.0% zinc, 0.025-0.035% indium, 0.10-0.15% silicon, etc.‌1.
4. ‌Al-Zn-In-Sn-Mg alloy sacrificial anode‌ (Model 14), with chemical composition including 2.5-4.0% zinc, 0.020-0.050% indium, 0.025-0.075% tin, 0.50-1.00% magnesium, etc.‌1.
5. ‌Al-Zn-In-Mg-Ti alloy sacrificial anode‌ (Model 21), with chemical composition including 4.0-7.0% zinc, 0.020-0.050% indium, 0.50-1.50% magnesium, 0.01-0.08% titanium, etc.‌1.

Application Scenarios and Specifications of Aluminum Alloy Sacrificial Anodes

Aluminum alloy sacrificial anodes are widely used in various scenarios, with specific specifications as follows:

1. ‌Sacrificial anodes for hull cathodic protection‌: including single iron foot welded type, double iron foot welded type, and bolted connection type, with specification code H‌1.
2. ‌Sacrificial anodes for cathodic protection of ship ballast water tanks‌: specification code T‌1.
3. ‌Sacrificial anodes for cathodic protection of port and marine engineering facilities‌: specification code I‌1.
4. ‌Sacrificial anodes for cathodic protection of seawater cooling systems‌: specification code E‌1.
5. ‌Sacrificial anodes for cathodic protection of tank sediment water areas‌: specification code C‌1.