The selection of materials plays a significant role in the performance, safety, durability, and maintenance costs of marine explosion-proof lighting fixtures. Here is a detailed analysis of how different materials affect marine explosion-proof lighting fixtures:

Metallic Materials (Steel, Stainless Steel, Copper Alloys)

• Corrosion Resistance and Impact Resistance: Metallic materials such as steel and stainless steel are preferred for manufacturing marine explosion-proof lighting fixtures due to their corrosion resistance and impact resistance. These materials can withstand harsh marine environments, including high humidity and salt spray conditions.
• Protective Coating: In addition to the inherent corrosion resistance of the material, a reliable protective coating, such as galvanizing or copper-nickel-chrome plating, is necessary to prevent rust and corrosion, ensuring the lighting fixtures remain in good condition over the long term.
• Vibration and Mechanical Strength: Metallic materials must have vibration resistance to ensure that parts do not loosen, break, or deform after being subjected to vertical, horizontal, and longitudinal vibrations.

Light Alloy Materials

• Lightweight and High Strength: Light alloy materials such as aluminum alloy are used for the casing and protective mesh of portable explosion-proof lights due to their lightweight and high strength characteristics. These materials not only reduce the weight of the lighting fixtures but also maintain sufficient mechanical strength.
• Resistance to Chemical and Mechanical Effects: The light alloy casing must be able to resist the effects of chemicals and mechanics to ensure reliable operation in various environments.

Plastic Materials

• Insulation and Lightweight: Plastic materials are used for the casing of explosion-proof lights due to their insulation and lightweight properties. The plastic casing must meet specific standards for heat and chemical resistance.
• Chemical Corrosion Resistance: Plastic materials need to have good chemical corrosion resistance to adapt to the salt spray environment at sea.

Rubber Sealing Components

• Waterproof and Dustproof Performance: Rubber sealing components are used to ensure the waterproof and dustproof performance of lighting fixtures. Their hardness and resistance to aging are crucial for maintaining the protection level of the lighting fixtures.

Transparent Cover Materials (Tempered Glass or Hard Glass)

• Optical Performance and Impact Resistance: Transparent covers should be made of tempered or hard glass to maintain optical performance and withstand impact, drop, and thermal shock tests without damage.

Insulating Materials

• Resistance to Electric Arc and Heat Resistance: Insulating materials need to have resistance to electric arcs and heat resistance to ensure good mechanical strength even at high temperatures.

In summary, the choice of materials for marine explosion-proof pendant lights directly affects the performance and safety of the fixtures. The correct material selection can ensure that the lighting fixtures work reliably over the long term in harsh marine environments, reducing maintenance costs and improving safety.