product description

High-purity graphite screw bolts are fasteners made of artificial graphite with a purity of up to 99.9%. They have unique properties and show advantages that metal bolts cannot replace in specific industrial scenarios.

High-purity graphite screw bolt have excellent high-temperature resistance. In an inert gas environment, they can withstand a high temperature of 3000°C. In an oxidizing gas environment, graphite screw bolt can withstand a high temperature of 1800°C. These performances far exceed the high-temperature resistance of metal bolts.

The chemical inertness of graphite screw bolt allows them to withstand corrosion from strong acids, strong alkalis, and organic solvents (metals are easily corroded and require coating protection). In addition, graphite screw bolts have metal-grade electrical conductivity and ultra-high thermal conductivity.

The above characteristics make it an important application component in some specific fields:

1. High-temperature vacuum equipment: graphite screw bolt is used for sealing the furnace chamber of single crystal furnaces and vacuum sintering furnaces, which helps to avoid metal volatilization pollution;

2. Strong corrosive environment: graphite screw bolt can be used for connecting bipolar plates in fuel cells and assembling hydrometallurgical electrolyzers;

3. Semiconductor manufacturing: graphite screw bolt can be used in wafer etching equipment to help avoid metal ion contamination of sensitive processes;

4. Special electrolysis: graphite screw bolt can be used to fix electrodes in molten salt electrolyzers, and have both conductive and corrosion-resistant functions.