1. The photovoltaic single-crystal graphite hot zone components (Graphite Hot Zone Components) are an important part of the core working area of the high-temperature furnace, and are widely evaluated:
Photovoltaic single-crystal silicon growth furnace
Semiconductor combustion furnace
Vacuum heat treatment furnace
Graphitization furnace
Powder metallurgy sintering furnace
Sapphire crystal growth furnace
Silicon carbide (SiC) crystal growth furnace.
The thermal field system mainly undertakes:
✔ Heating function
✔ Thermal insulation function
✔ Conductive Function
✔ Uniform temperature control
✔ Improve product yield
✔ Reduce the concentration
In an environment with a temperature below 3000℃, graphite exhibits excellent high-temperature stability, thermal conductivity and mechanical strength, making it the most ideal material for thermal field systems.
Graphite Heater
Product Introduction
The graphite heater is the core heating component of the thermal field system.
By utilizing the principle of resistance heating, electrical energy is converted into thermal energy.
Product features
Fast speed
Uniform heating
High thermal efficiency
Capable of operating continuously at temperatures above 2500℃
Excellent thermal shock resistance performance
Graphite Insulation Cylinder
Nickname:
Graphite insulation tube
Graphite insulating cylinder
Graphite insulating cylinder body
It is an important insulation component of the heating system.
Main function:
Reduce heat loss.
Product features
✔ Reduce the concentration
✔ Improve temperature uniformity
✔ Extend the heating time for consumption
✔ Reduce fever
Application industries
Photovoltaic single crystal furnace
Vacuum heat treatment furnace
Graphitization furnace
Graphite Insulation Board Function
Heat diffusion.
Improve the insulation efficiency of the heat field.
Advantages
High temperature resistance without deformation
Low thermal expansion coefficient
High mechanical strength
Product Range
Vacuum furnace graphite components include:
Graphite heater
Graphite insulation tube
Graphic support piece
Graphite flow director
Pyramid
Graphite connector Advantages
In a vacuum environment:
Graphite has:
Does not contaminate the workpiece
Has fast heat conduction
Resists thermal shock
Has a long service life
The advantages of Jin Cheng Abrasive Mold Factory in Huixian City
Professional manufacturer of graphite processing (graphite processing manufacturer)
Established in 1995
50 graphite processing machines
Maximum processing size 1000mm
Domestic isostatic pressure graphite processing
Imported graphite processing
Drawing-based customization
Support for small batch samples
Core products
Graphite heat zone components
Graphite heater
Graphite insulating cylinder
Graphite heat field
Vacuum furnace graphite components
Semiconductor graphite components
Isostatic pressure graphite components
Customized graphite parts
| Test Item | Unit | Standard Type (STD) | High Temperature Type (HT) | Test Standard |
|---|---|---|---|---|
| Fixed Carbon Content | % | ≥ 99.95 | ≥ 99.98 | GB/T 3521-2023 |
| Ash Content | % | ≤ 0.03 | ≤ 0.02 | GB/T 3521-2023 |
| Bulk Density | g/cm³ | ≥ 1.80 | ≥ 1.82 | GB/T 24525-2009 (Hydrostatic Method) |
| Electrical Resistivity | μΩ·m | ≤ 6.5 | ≤ 6.0 | ASTM C611 (Four-probe Method) |
| Compressive Strength | MPa | ≥ 45 | ≥ 48 | GB/T 14390-2008 |
| Flexural Strength | MPa | ≥ 10.5 | ≥ 11.0 | GB/T 14390-2008 (Three-point Bending Method) |
| Open Porosity | % | 18 ~ 22 | 16 ~ 20 | GB/T 24525-2009 |
| Thermal Conductivity (20℃) | W/(m·K) | 120 ~ 140 | 140 ~ 150 | ASTM C480 |
| Coefficient of Thermal Expansion (20~1000℃) | 10⁻⁶/℃ | ≤ 4.0 | ≤ 3.5 | Dilatometer Test |
| Max. Operating Temperature | ℃ | 1600 ~ 2000 | 2000 ~ 2800 | Thermal Analysis Test |
| Thermal Shock Cycles (1000℃ → 25℃) | Cycles | ≥ 30 | ≥ 50 | Thermal Shock Test Method |
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