Description
Delivers unparalleled durability, high-temperature resistance, and corrosion protection for welding processes.
Industrial Welders – Extend Dowel Pin Life 50X
High-Temperature Resistant
Withstands up to 1900°C without melting, ensuring stability in extreme welding environments.
Corrosion-Proof
Resists almost all inorganic acids and many organic acids, prolonging service life in corrosive conditions.
Super-Hard Material
Mohs hardness of 9-9.5, making it one of the hardest materials globally for precise positioning.
Thermal Stability
Less affected by thermal expansion and contraction, maintaining accuracy in varying temperatures.
Features
The Silicon Nitride Positioning Pin is crafted from high-purity silicon nitride, known for its exceptional hardness (Mohs 9-9.5) and high-temperature resistance (up to 1900°C). It features a black finish and is available in standard sizes (M4-M12) as well as customized dimensions. The pin undergoes a specialized sintering process under 100 Pa gas pressure, enhancing its anti-bending strength, hardness, and impact resistance.
Benefits
This positioning pin offers unmatched durability in welding applications, reducing downtime and replacement costs. Its corrosion resistance ensures longevity even in harsh environments, while its thermal stability maintains precision in varying temperatures. The super-hard material guarantees accurate positioning, enhancing welding quality and efficiency.
Use Cases
Ideal for industrial welding processes, the Silicon Nitride Positioning Pin excels in automotive manufacturing, aerospace, and heavy machinery sectors. It is particularly suited for applications requiring high-precision positioning under extreme temperatures and corrosive conditions, such as welding dowel pins and gas nozzles.
| Product Name | Silicon Nitride Positioning Pin |
| Material | Silicon Nitride |
| High-Temperature Melting Point | 1900℃ |
| Color | Black |
| Mohs Hardness | 9~9.5 |
| Features | The strength of silicon nitride is very high, especially hot-pressed silicon nitride, which is one of the hardest materials in the world. It is extremely resistant to high temperatures of 1200°C without cooling down, then melts into a melt, which will be broken down until 1900°C. It decomposes and has amazing chemical corrosion resistance. Can withstand almost all inorganic acids and many organic acids. At the same time, it is a high-performance insulating material. |
| Dimension | M4 M5 M6 M7 M8 M10 M12 Customized Size |
| Product Advantages: | |
| ●Corrosion Preventive Due to the ceramics corrosion hardly, ceramic rolling bearings are suitable for operation under harsh conditions full of corrosive media. ●Long Service Life Due to the density of the ceramic ball being lower than that of steel, the weight is much lighter, the centrifugal effect of the outer ring can be reduced by 40% when rotating, then the service life is longer. ●Less Affected by Temperature Ceramic is less affected by thermal expansion and contraction than steel, so when the bearing gap is constant, the bearing can be allowed to work in an environment where the temperature difference changes more drastically. ●Not Deformed Since the elastic modulus of ceramic is higher than steel, it is not easy to deform when subjected to force, so it is beneficial to increase the working speed and achieve higher accuracy. |
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| Air Pressure Sintered Silicon Nitride In the welding process, silicon nitride has greater advantages and characteristics than other ceramic materials. The material sintered with a gas pressure of 100 Pa has strong advantages in various aspects such as anti-bending strength, high hardness, high-pressure impact resistance, and heat resistance. High-performance silicon nitride ceramic also has electrical insulation properties, which have proven to be a great advantage in various welding processes. Comparison of silicon nitride and other materials Although high-performance ceramics such as yttrium-stabilized zirconia have been used in the field of positioning pins for welding and alumina in the field of gas nozzles, the usage of silicon nitride as welding parts is an inevitable trend. Compared with other materials such as zirconia, alumina ceramic ceramics, KCF, DIP, etc., silicon nitride is the best choice for high-strength, high-yield, high-precision, and other use conditions in the welding process. Process method: It uses silicon powder as the raw material, firstly uses the usual molding method to make the required shape, and performs preliminary nitridation in nitrogen and at a high temperature of 1200C, so that part of the silicon powder reacts with nitrogen to form silicon nitride. At this time, the whole body already has a certain strength. Then the second nitridation is carried out in a high-temperature furnace of 1350C ~ 1450C, and the reaction becomes silicon nitride. |
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Why Choose Silicon Nitride Positioning Pins?
Silicon Nitride Positioning Pins offer unparalleled durability and high-temperature resistance, making them ideal for industrial welding applications. Their corrosion-proof properties ensure longevity in harsh environments, reducing downtime and replacement costs.
How Do They Enhance Welding Precision?
The super-hard material (Mohs 9-9.5) and thermal stability of Silicon Nitride Positioning Pins guarantee accurate positioning, even in varying temperatures. This enhances welding quality and efficiency, crucial for automotive, aerospace, and heavy machinery sectors.
What Sizes Are Available?
Silicon Nitride Positioning Pins come in standard sizes (M4-M12) and can be customized to specific dimensions, catering to diverse industrial needs.
