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Precious Metals in Spark Plugs

Precious metals such as platinum, iridium, and sometimes gold are used in spark plugs due to their unique properties that enhance the performance, durability, and efficiency of the plugs. These metals are selected because they meet the demanding requirements of modern combustion engines, which operate under extreme conditions. Here are the key reasons why precious metals are used in spark plugs:

1. High Melting Points

Precious metals have exceptionally high melting points, making them highly resistant to the intense heat produced in an engine’s combustion chamber. For example:

Iridium** has a melting point of 2,447°C (4,437°F), one of the highest among metals.

Platinum** melts at 1,768°C (3,214°F).

The high melting point allows spark plugs with precious metal electrodes to maintain their shape and functionality at higher temperatures, which prevents wear and prolongs the life of the spark plug. This is especially important in high-performance and modern turbocharged engines, where temperatures can be extremely high.

2. Improved Durability and Longevity

Precious metals are highly resistant to corrosion and erosion caused by constant sparking, high temperatures, and exposure to combustion byproducts like fuel additives and residues. This durability allows spark plugs to last significantly longer than those made with conventional metals such as nickel or copper.

-Platinum and iridium electrodes can last 60,000 to 120,000 miles or more, depending on the application.

- In contrast, traditional spark plugs with copper or nickel alloys may need replacement every 20,000 to 30,000 miles.

 3.Superior Electrical Conductivity

Precious metals offer excellent electrical conductivity, ensuring that a strong, consistent spark is generated every time. This results in more efficient combustion of the air-fuel mixture, which enhances the engine's performance, fuel efficiency, and emissions control.

Although the replaced waste car spark plugs have no practical value in automobiles, they can also be turned into valuable waste. Hand over the waste spark plugs to the Dingfeng Precious Metal Recycling and Refining Factory for recycling and refining. The Dingfeng Precious Metal Recycling and Refining Factory will provide corresponding quotes for recycling and processing based on the recovered spark plugs. Dingfeng Precious Metal Recycling approved by the environmental protection department, is a formal enterprise specialized in precious metal recycling and purification. It has been engaged in precious metal waste recycling and processing for more than 20 years. For a long time, it has been engaged in electrical DENSO spark plug, Bosch BOSCH spark plug, NGK spark plug, DECO ACDELCO spark plug, torch TORCH spark plug, champion CHAMPION spark plug, Cummins spark plug, iridium spark plug, platinum spark plug, iridium platinum spark plug, dual platinum spark plug Double Iridium Spark Plug, Linker LYNK&CO Spark Plug, Volvo Spark Plug, BMW Spark Plug, Mercedes Benz Spark Plug, Mazda Spark Plug, Ford Spark Plug, etc. If you have any demand for recycling of waste spark plugs, please call our 24-hour service hotline. Dingfeng Precious Metal Recycling and Refining Factory has its own recycling and refining factory without intermediaries to earn price differences. Our professional technical team and customer service personnel provide one-on-one services to ensure customer privacy during the recycling process.