Precious Metals in Spark Plugs

For ships, precious metals in spark plugs use iridium-platinum alloy to resist salt spray corrosion. They need carbon cleaning every 500 hours. For aircraft, precious metals in spark plugs use nickel-based alloy to handle sudden temperature changes from -50°C to 1000°C. Check for cracks after every few takeoffs and landings. For luxury cars, precious metals in spark plugs have an iridium center electrode and platinum side electrode. They give a very fast ignition response in 0.8 milliseconds. After these three types of precious metals in spark plugs wear out, they are all melted at high temperatures. The recovered platinum powder is supplied directly to make electrodes for new precious metals in spark plugs. Acid treatment purifies the nickel alloy so it can be reused to cast bases again. DONGSHENG specializes in recycling precious metals in spark plugs. This helps lower the manufacturing costs for the spark plug industry.