35kg|23kg|16kg|10kg High-Efficiency Aluminum Alloy Sacrificial Anode
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35kg|23kg|16kg|10kg High-Efficiency Aluminum Alloy Sacrificial Anode
In addition to gas absorption during melting, cast aluminum alloys also absorb gas when poured into the mold. As the temperature of the molten metal inside the mold decreases, the solubility of gas decreases, causing excess gas to precipitate. Some of the gas that cannot escape remains in the casting, forming pores, commonly referred to as "pinholes." Sometimes, gas combines with shrinkage cavities, where the gas precipitated from the aluminum melt remains within the shrinkage cavity. If the pressure generated by the gas bubble is high, the pore surface is smooth, with a bright layer around the hole. If the pressure generated by the gas bubble is low, the inner surface of the pore is wrinkled, resembling "fly legs," and upon closer inspection, it exhibits characteristics of shrinkage cavities. The higher the hydrogen content in the cast aluminum alloy melt, the more pinholes are produced in the casting. Pinholes in aluminum castings not only reduce the air tightness and corrosion resistance of the casting but also diminish the mechanical properties of the alloy. The key to obtaining aluminum castings free of or with fewer pores lies in the melting conditions. If a covering agent is added during melting for protection, gas absorption by the alloy is significantly reduced. Refining the aluminum melt can effectively control the hydrogen content in the aluminum liquid.
Main Products:
Magnesium Alloy Sacrificial Anode | Zinc Alloy Sacrificial Anode | Aluminum Alloy Sacrificial Anode |
Cathodic Protection Test Station | Zinc Ribbon, Magnesium Ribbon | Reference Electrode |
High Silicon Cast Iron Anode | Deep Well Anode | MMO Flexible Anode |
Potentiostat | Casing Anode | Polarization Probe |
Solid-State Decoupler | Spark Gap Protector | Equipotential Connector |
Explosion-Proof Junction Box | Copper-Clad Steel Strand | Lightning Protection Equipment |
Exothermic Welding | Damage Repair Materials | Pipe Support |
Balance Pressure Bag | Potential Transmitter | Aluminum Alloy Lifting Pole |
1. Product Introduction
Our company develops and produces aluminum alloy sacrificial anodes (referred to as aluminum anodes) in accordance with GB/T 4948-2002. These are suitable for the cathodic protection of metals in seawater environments, including ships, mechanical equipment, ballast water tanks, storage tank interiors, coastal facilities, submarine pipelines, dock steel piles, offshore platforms, cables, and other facilities.
2. Chemical Composition of Aluminum Anode
Type | Zn | In | Cd | Sn | Mg | Si | Ti | Impurities, not more than | Al | ||
Si | Fe | Cu | |||||||||
Al-Zn-In-Cd | 2.5-4.5 | 0.018-0.050 | 0.005-0.02 | — | — | — | — | 0.10 | 0.15 | Balance | |
Al-Zn-In -Sn | 2.2-5.2 | 0.020-0.045 | — | 0.018-0.035 | — | — | — | 0.10 | 0.15 | Balance | |
Al-Zn-In -Si | 5.5-7.0 | 0.025-0.035 | — | — | — | 0.10-0.15 | — | 0.10 | 0.15 | Balance | |
Al-Zn-In -Sn-Mg | 2.5-4.0 | 0.020-0.050 | — | 0.025-0.075 | 0.50-1.00 | — | — | 0.10 | 0.15 | Balance | |
Al-Zn-In -Mg-Ti | 4.0-7.0 | 0.020-0.050 | — | — | 0.50-1.50 | — | 0.01-0.08 | 0.10 | 0.15 | Balance | |
3. Electrochemical Performance of Aluminum Anode
Performance Type Indicator | Open Circuit Potential | Working Potential | Actual Capacity A·h/kg | Current Efficiency | Dissolution Condition |
Ordinary Aluminum Alloy Anode | 1.10-1.18 | 1.05-1.12 | ≥2400 | ≥85 | Corrosion products easily fall off, surface dissolves uniformly. |
High-Efficiency Aluminum Alloy Anode | 1.10-1.18 | 1.05-1.12 | ≥2600 | ≥90 | |
High-Activation Aluminum Alloy Anode | 1.45-1.50 | 1.40-1.45 | ≥2080 | ≥70 |
| Industry Category | Metallurgy & Minerals/Non-Ferrous Processed Materials/Non-Ferrous Metal Sheets |
|---|---|
| Product Category | |
| Brand: | |
| Spec: | 35kg|23kg|16kg|10kg |
| Stock: | 5000 |
| Manufacturer: | |
| Origin: | China / Henan / Jiaozuoshi |
