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Customizable Size for High Purity Graphite Heater with High Temperature Resistance
Leadsun provides high-quality graphite products including graphite heaters, bottom heaters, electrodes, sheaths, and soleplates for various industrial applications. Our graphite molds offer superior performance with high temperature resistance, precise machining accuracy, uniform temperature distribution, and easy demolding capabilities.
Product Properties
High precision products manufactured using advanced machining equipment
Skilled operators and experienced engineering team
Consistent quality through stable raw material sourcing
Customized solutions based on customer specifications and applications
Leadsun provides diverse graphite products for the metallurgy industry, with customizable sizes to meet specific customer requirements. Our products are certified under the ISO9001 international quality system.
Industry Applications
Graphite products serve critical functions across multiple industries:
Photovoltaic Industry: Single crystal furnace thermal fields, polycrystalline ingot furnace thermal field components, crucibles, insulation buckets
Semiconductor Industry: Boats, trays, fixtures, CVD process components for diffusion and sintering furnaces
New Energy & Research: Fuel cell bipolar plates, nuclear energy components, high-temperature laboratory equipment
Graphite Heater
The single crystal furnace graphite heater is a crucial component within the heating system. It leverages graphite's excellent electrical and thermal conductivity to convert electrical energy into thermal energy, creating the high-temperature environment essential for single crystal growth. Manufactured from high-purity graphite (carbon content >99.9%), these heaters utilize resistance heating principles to melt and maintain polycrystalline silicon at optimal temperatures for crystal growth.
Graphite Bottom Heater
Constructed from high-purity graphite with an extremely high melting point, the graphite bottom heater converts electrical energy to thermal energy when connected to power. This heat transfers to the quartz crucible and polycrystalline silicon materials above, providing necessary thermal energy for material melting and single crystal formation. Working in conjunction with the main heater, it reduces silicon material feeding time and enhances direct pull single crystal furnace efficiency.
Graphite Electrode
As a key conductive heating component in single crystal furnace thermal field systems, graphite electrodes connect to the furnace's power system through copper electrodes, graphite connection plates, or water-cooled cables. Their threaded internal structure ensures low contact resistance and reliable conductivity. These electrodes utilize low resistivity graphite (≤12 MΩ*M) to minimize Joule heat losses.
Graphite Sheath
Graphite sheaths provide essential isolation and protection within single crystal furnace thermal fields. Components including electrode graphite sheaths, exhaust sheaths, and support rod sheaths install tightly within reserved through-holes of furnace bottom insulation components. This protection prevents silicon liquid and vapor infiltration, extends graphite carbon felt service life, enhances furnace bottom insulation, and improves thermal field insulation performance.
Additional Products
We also manufacture: Graphite Soleplate, Graphite Mandrel, Graphite Chuck, Graphite Connector, Graphite Conducting Tube, Graphite Base, Graphite Crucible, and Graphite Support Ring.
Custom manufacturing available according to your specific requirements.
Contact Us
Contact us for customized graphite solutions tailored to your industrial requirements.
Our products cover heavy & light shaped and unshaped refractories, and are widely used in power, steel & iron, non-ferrous, petrochemicals, building materials and other industries, and are exported to more than 30 countries and regions in Europe, America, Africa, Oceania, Southeast Asia... Our products cover heavy & light shaped and unshaped refractories, and are widely used in power, steel & iron, non-ferrous, petrochemicals, building materials and other industries, and are exported to more than 30 countries and regions in Europe, America, Africa, Oceania, Southeast Asia...
