الوصف

The basic conditions for high-performance engine: the spark of high-energy stable, mixed homogeneous mixture, high compression ratio.
When cylinder in working, mixed gas compression, high combustion temperature and pressure, so that spark plug temperatures up to **0 �C, at this time but also the spark plug ignition, high temperature electrode can imagine.   As silver, gold melting point is too low it can not be used as electrode materials Division, while nickel is close to the melting point of ***0 �C and the price is cheap, they were widely used. Platinum is close to ***0 �C was only melt away, its stability and resistance to natural erosion
better than nickel. The newly emerging Iridium material is higher than the melting point of platinum, so more suitable for high-performance engine for a long time, high-speed situations.