Porcas de grafite de alta qualidade para forno de vácuo de alta temperatura

• Type: Graphite Mold
• Carbon Content: High-Carbon
• Grade: Industrial Grade
• Forming Way: Isostatic Graphite
• densidade: 1.85 g/cm3
• resistência específica: No More Than 8.5
• N ° de Modelo.: HTZKL055
• força de compressão: 34 MPa Min
• forma: Cuistomized
• material: grafite de elevada pureza
• Pacote de Transporte: Wooden Case
• Especificação: Customized
• Origem: Hebei, China
• Capacidade de Produção: 500000 Piece/Pieces Per Month

Descrição de Produto

Fields of application:

· Vacuum Furnace 
· Heat Treatment (hardening, carbonization, brazing)
· Inert Gas Furnace
· Carbon Fiber Production
· Technical Ceramic Production
·  Sintering Applicaitons
·  Cemented Carbide Production
·  CVD/PVD Coating 
 

Graphite products have been widely used in vacuum furnace, not only for heating element and heat insulation screen of vacuum furnace, but also for manufacturing structural parts such as joint parts, support, material plate, guide rail, bolt, screws, bearing, fan blade and so on. The application of graphite parts in vacuum furnace greatly simplifies the design and manufacture of vacuum furnace, reduces the consumption of metals such as molybdenum, tantalum & stainless steel, reduces the cost, improves the performance of vacuum furnace and expands the use range of vacuum furnace.
 

Why does graphite can be used for industrial furnace? 

Graphite can be bused for industrial furnace is determined by its outstanding properties.
Characteristics of graphite:
1. High temperature resistance: The melting point of graphite is 3850 ± 50 ° C and the boiling point is 4250 ° C. Even if it is burned by ultra-high temperature arc, the weight loss is small and the thermal expansion coefficient is very small. The strength of graphite increases as temperature raises. At 2000 ° C, the strength of graphite doubles.
2. Electrical and thermal conductivity: The electrical conductivity of graphite is 100 times higher than that of general metal. Thermal conductivity exceeds metal materials such as steel, iron, and aluminum.

3. Chemical stability: Graphite has good chemical stability and is resistant to acid, alkali and organic solvents.
4. Plasticity: The toughness of graphite can be cut into very thin slices.
5. Thermal shock resistance: Graphite can withstand severe changes in temperature without damage when used at normal temperature. When the temperature changes suddenly, the volume of graphite does not change much.

Advanced Equipments: 
 

Graphite Material Property: 

Property (Typical Value)	TSK	GSK	Unit
Apparent Density	≥1.68	≥1.72	g/cm^3
Max Grain Size	≤2	≤0.8	mm
Specific Electrical Resistivity	8-10	≤8.5	μΩm
Flexural Strength	≥12.5	≥15	Mpa
Compressive Strength	≥28	≥35	Mpa
Porosity	≤24	≤20	%
Ash value	≤0.3	≤0.3	%

 

Property (Typical Value)	HTG-4	HTG-5	Unit
Apparent Density	≥1.78	≥1.85	g/cm^3
Max Grain Size	≤43	≤43	µm
Ash value	≤500	≤500	ppm
Specific Electrical Resistivity	≤12	≤10	μΩm
Flexural Strength	≥35	≥40	Mpa
Compressive Strength	≥60	≥70	Mpa
Shore Hardness	≥40	≥45	HSD
Thermal Expansion (room temperature to 600ºC)	≤4.5	≤4.4	10-6/ºC

 

Property (Typical Value)	HTD-5	HTD-6	HTD-7	HTD-8	HTD-9	Unit
Apparent Density	1.85	1.90	1.82	1.90	1.82	g/cm^3
Max Grain Size	13-15	8-10	8-10	8-10		µm
Ash Content	≤500	≤500	≤500	≤500	≤500	ppm
Purified ASH Content	50	50	50	50	50	ppm
Specific Electrical Resistivity	8-10	8-9	11-13	11-13	11-13	μΩm
Flexural Strength	46	55	51	60	59	Mpa
Compressive Strength	85	95	115	135	121	Mpa
Shore Hardness	48	53	65	70	70	HSD
Thermal Expansion (room temperature to 600ºC)	4.75	4.8	5.8	5.85	5.85	10-6/ºC

Our Services:

Efficiency: Your einquiry will be replied with 24 hours 

Fast Delivery: Our produciton capability and enough mateiral stocks will make sure fast devevery
Customization: We provided OEM services based on your design and drawings

Design Service: Our professional and experienced enigneers team can disign for you, if you need
Quality and Price: We offer you high quality graphite products with the most competitive price

After-sales Services: Tracking service for feedbacks of our graphite products, and we will be responsilbe for quality problem.  

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