Best Tungsten Carbide Valve Seat
We have been a professional supplier specializing in customized production of various hard alloy molds for over 35 years.
Hard alloy valve seat
Product details
Tungsten carbide, also known as wolfram carbide, is a compound of tungsten and carbon with the chemical formula WC. It is an extremely hard material second only to diamond in terms of its hardness on the Mohs scale. Due to its remarkable properties, tungsten carbide is used in a variety of applications, including the manufacturing of valve seats for internal combustion engines.
The performance of Tungsten Carbide Valve Seat can be attributed to several key characteristics:
1. Extreme Hardness: Tungsten carbide's hardness allows it to resist wear and deformation, making it ideal for high-stress environments like those found in engine valve seats.
2. High Melting Point: With a melting point over 2,700°C (4,900°F), tungsten carbide can endure the high temperatures generated by combustion without degrading or losing structural integrity.
3. Low Thermal Expansion: Its coefficient of thermal expansion is relatively low, which means that it expands less than many other materials when heated. This property helps maintain a stable fit with the valve under varying temperature conditions.
4. Corrosion Resistance: Tungsten carbide is resistant to corrosion from the fuel and oil residues that come into contact with the valve seat during engine operation.
5. Fatigue Resistance: It has a high fatigue limit, meaning it can withstand repeated stresses without cracking or breaking.
6. Abrasion Resistance: The surface of tungsten carbide is highly resistant to abrasion, which is crucial in the context of valve seats where the valve stem repeatedly contacts the seat during engine cycles.
The primary use of tungsten carbide in valve seats is to improve the durability and longevity of internal combustion engines. When compared to traditional valve seat materials such as steel or alloys, tungsten carbide offers superior performance in the following ways:
Increased Durability: Tungsten carbide valve seats last much longer than their softer counterparts before needing replacement.
Improved Efficiency: Because they maintain their shape and size better, tungsten carbide valve seats help ensure consistent valve sealing, leading to better engine efficiency and power output.
Reduced Maintenance: Less frequent valve seat replacements mean reduced maintenance costs and downtime for vehicles and machinery that use them.
Enhanced Reliability: In high-performance and high-heat applications, such as racing engines, the reliability of tungsten carbide valve seats is paramount in preventing engine failure.
In conclusion, tungsten carbide valve seats are a testament to the material's exceptional combination of hardness, heat resistance, and durability. They play a critical role in enhancing the performance and extending the service life of internal combustion engines, making them an indispensable component in the pursuit of more efficient and reliable automotive engineering.
Popular products
Online
Message
If you have any suggestions or feedback about our company, please fill in the relevant information on this page and submit it. Our staff will contact you in a timely manner, or please call us directly.
ZIGONG XINGYU CEMENTED CARBIDE DIES&TOOLS
FOCUS ON CEMENTED CARBIDE PARTS AND DIE MANUFACTURING
MESSAGECONTACT US
Service hotline： +86 139-0900-9601（Mr. ray）
TEL： +86-813-5107175
FAX： +86-813-5106678
E-MAIL：xymj@zgxymj.com
ADD：No. 6 Fuchuan Second Branch Road, Bancang High tech Industrial Park, Zigong City, Sichuan Province, China
MOBILE WEBSITE