Graphite Bolt For Vacuum Furnace

Graphite bolt for vacuum furnace is extremely high temperature resistant fasteners, which are very suitable for use in vacuum, high temperature and complex thermal cycle environments.

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Products Description

Graphite bolt for vacuum furnace is extremely high temperature resistant fasteners, which are very suitable for use in vacuum, high temperature and complex thermal cycle environments.

Graphite can withstand temperatures above 2000℃ in vacuum and inert atmosphere, and the mechanical strength of graphite bolts increases instead of decreasing under high temperature environments, and its tensile strength far exceeds that of materials such as stainless steel. Graphite bolts have a low thermal expansion coefficient and can maintain dimensional stability under rapid temperature rise and fall. This feature avoids thread jamming or seal failure due to thermal stress, and its high thermal conductivity reduces local thermal stress accumulation.

Graphite materials hardly diffuse with metal materials in high temperature vacuum environments, so graphite bolts processed from them can effectively avoid intergranular corrosion and oxidation problems common in metal fasteners, thereby greatly reducing the interference of material degassing on vacuum. In addition, graphite bolts have excellent self-lubrication. Its use can prevent the cold welding effect of metal contact surfaces at high temperatures, making it easier to disassemble and maintain equipment.

Graphite bolts are light in weight and can reduce the inertial load of moving parts of vacuum furnaces. At the same time, its excellent electrical conductivity and anti-electromagnetic interference ability make it suitable for use in scenarios that require current conduction or magnetic field shielding, such as single crystal silicon growth furnaces. These characteristics make graphite bolts the first choice for high-temperature vacuum connection components in high-end processes such as semiconductor manufacturing and aerospace material heat treatment, taking into account reliability, economy and process adaptability.