The impact of the material of Marine Inboard Outboard Spark Plugs on their performance

In the ship's engine system, Marine Inboard Outboard Spark Plugs (marine internal combustion engine and outboard engine spark plugs) play a vital role. They are responsible for generating sparks in the engine combustion chamber, igniting the mixed gas, thereby driving the piston movement and achieving the engine's power output. The performance of the spark plug is directly related to the working efficiency and stability of the engine, and the material of the spark plug is one of the key factors affecting its performance.
The electrode material of the spark plug has a direct impact on ignition performance. Common electrode materials include copper, nickel alloy, silver alloy, and more advanced platinum and iridium. Although electrodes made of copper and nickel alloys are relatively low-cost, they are prone to wear and deformation in high-temperature and high-pressure engine environments, resulting in reduced ignition performance. Electrodes made of advanced materials such as platinum and iridium have higher melting points, better corrosion resistance and longer service life, which can ensure that spark plugs maintain good ignition performance in harsh working environments.
The material of the spark plug's insulator also has a significant impact on performance. The insulator mainly plays the role of isolating the electrodes and the metal parts of the engine to prevent current leakage. High-quality insulator materials should have good insulation properties, high temperature resistance and mechanical strength. Some high-performance spark plugs use ceramic as the insulator material. This material not only has excellent insulation properties, but also maintains stable physical properties at high temperatures, thus improving the reliability and durability of the spark plug.
In addition, the shell material of the spark plug cannot be ignored. The outer shell mainly plays a role in fixing and protecting the internal components. Common shell materials include steel and aluminum alloy. The steel casing has high strength and corrosion resistance and is suitable for various harsh working environments; while the aluminum alloy casing has a lighter weight and good heat dissipation performance, helping to reduce the overall weight of the engine and improve heat dissipation efficiency. .
The material of Marine Inboard Outboard Spark Plugs has a significant impact on their performance. Selecting the appropriate electrode, insulator and shell material can ensure that the spark plug maintains good ignition performance, reliability and durability under high temperature, high pressure and harsh working environment, thus improving the engine's working efficiency and stability and extending the engine's use. life. Therefore, when purchasing a spark plug, you should fully consider its material factors and make a selection based on the actual needs of the ship and the working environment.