Corrosion Problem Of Neutral Blocks? The Solution Can Be Found Here

As a key component of circuit connections, neutral blocks often corrode due to environmental humidity, chemical erosion, or incompatible metal materials, resulting in increased contact resistance, decreased conductivity, and even equipment failure or fire hazards. The following are targeted solutions:

1、 Analysis of Corrosion Causes

Environmental factors: Moisture, salt spray, and chemical gases (such as acidic substances) can accelerate the oxidation of terminal surfaces, forming copper rust or white oxides.

Material incompatibility: When copper and aluminum come into direct contact, electrochemical corrosion occurs due to the potential difference, resulting in the formation of copper sulfate with poor conductivity.

Design flaw: Poor terminal sealing or insufficient protection, exposing internal metal to corrosive environments.

2、 Solution

Material optimization

Choose corrosion-resistant materials such as tin plated or silver plated terminals, or use stainless steel materials to enhance corrosion resistance.

Isolate dissimilar metals: When connecting copper and aluminum, use transition terminals or apply antioxidant paste (such as conductive paste) to block electrochemical corrosion.

Protective treatment

Surface cleaning and coating: Use alcohol or specialized cleaning agents to remove oil and dust, then spray rust inhibitor or insulation paint to form a protective film.

Sealing reinforcement: Use waterproof terminals or sealant to seal in humid environments to prevent moisture from entering.

environmental control

Reduce humidity: Control environmental humidity through ventilation or dehumidification equipment to reduce the risk of corrosion.

Avoid pollution: Keep the production environment clean and prevent dust and oil stains from adhering to the surface of the terminals.

Regular maintenance

Cleaning inspection: Regularly sand the oxide layer with sandpaper, apply conductive paste to prevent oxidation, and tighten loose screws.

Replace aging terminals: Replace severely corroded or deformed terminals in a timely manner to avoid the accumulation of hidden dangers.

3、 Preventive measures

Selection matching: Select the terminal type (such as waterproof type, high current type) based on current, environment, and wire diameter.

Standard operation: When crimping, avoid crushing the insulation layer and use wire crimping pliers that match the specifications to prevent excessive compression.

Add protective structure: Use terminals with stress relief design (such as snap on type) to reduce damage caused by external pulling.