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Diamond Tools Sintered Graphite Products

Product introduction

Sangao graphite is high-purity graphite with high purity, high density and high strength. When high-purity graphite is used, the carbon content is more than 99.99%. It is an ideal non-metallic graphite crucible, graphite boat and single crystal furnace in the graphite industry. The heating elements are graphite heaters, EDM graphite processing, sintering molds, electronic semiconductors, etc.

Diamond Tools Sintered Graphite Products Introduction:

1:Sangao graphite is high-purity graphite with high purity, high density and high strength. When high-purity graphite is used, the carbon content is more than 99.99%. It is an ideal non-metallic graphite crucible, graphite boat and single crystal furnace in the graphite industry. The heating elements are graphite heaters, EDM graphite processing, sintering molds, electronic semiconductors, etc.

2:Sangao graphite has many advantages such as small resistivity, high temperature resistance, corrosion resistance, oxidation resistance, good thermal shock resistance, good electrical and thermal conductivity, self-lubricating, stable chemical properties and easy processing. Of course, these characteristics of isostatic graphite are very prominent as a fine product in graphite. Isostatic graphite is three-high graphite, but three-high graphite is not necessarily isostatic graphite. Why do you say this? Because isostatic graphite is pressed from high-purity graphite, isostatic graphite is an internationally recognized new product and is closely related to today's technology.

3:The application of three-high graphite products is usually used in the fields of electrical conductivity and metallurgy of heavy industry. Almost all of them are made of three-high graphite as raw materials, and are made of graphite products processed by CNC lathes, CNC and other precision equipment. After design and programming, three-high graphite products can be Graphite processing produces three-high graphite products of various shapes, specifications and applications. It has good self-lubrication and wear resistance, high temperature resistance, electrical conductivity, etc., and has significant advantages such as wear resistance, corrosion resistance, easy processing and production, and unique mechanical strength. Three high graphite products are made of three high graphite materials. Processed, graphite crucibles, sintered graphite fixtures, graphite fixtures, etc. are almost all three-high graphite products. Three-high graphite products have good electrical conductivity, high temperature resistance, and wear resistance. According to the various characteristics of three-high graphite products , The application of three high graphite products is usually used in industrial fields such as refractory, metallurgy, electrical conductivity, glass sealing and sintering.

Technical Data

Physical and chemical indicators of molded three-high graphite
Project Unit X-4 X-5 H-5 F-5 H-6 W-6 X-7 X-8
Bulk density g/cm3 1.75 1.85 1.68 1.75 1.90 1.91 1.85 1.91
Resistivity μ Ω·m 8.5 8.5 13 9-10 8-9 8-9 11-13 11-13
Thermal conductivity (10℃) W/(m·K) 121.1 139.2 139.5 140 140 140 85 85
CTE(room temperature-600℃) 10-6/℃ 5.46 4.75 4.9 4.9 5.1 5.4 5.6 5.85
Shore hardness HSD 42 48 49 56 53 53 65 70
Flexural strength Mpa 38 46 38 43 55 55 51 60
Compressive strength Mpa 65 85 86 86 95 95 115 135
Elastic Modulus Gpa 9 11.8 18 11 10 11 11 12
porosity % 16 13 16 12 11 11 12 11
Ash PPM 500 500 500 500 / / / /
Purified ash PPM 50 50 50 50 50 50 50 50
Graininess μm 12-15 12-15 12-15 12-15 10-12 8-10 8-10 8-10

 

Physical and chemical indicators of purified graphite
Technical indicators    Typical Properties Grades
XWT- 1 XWT-II XWT- 1 XWT-II
Bulk Density(g/cm3)(≮) 1.6 1.7 * *
Porosity(%)(≯) 27 23 * *
Compression Strength(Mpa)(≮) 28 30 * *
 Specific Electrical Resistance(μ Ω·m)(≯) 10 8 * *
Graininess * * 320 250
Ash(PPm) (≯) 10 10 10 50
Sizes(mm) Φ6*300 Φ8|Φ10|Φ13|Φ15              length are 300 Spectrally pure graphite powder High purity graphite powder

 

Physical and chemical indicators of ultra-high power graphite electrodes
Item Unit Nominal Diameter (mm)
ᶲ 300〜ᶲ  400 ᶲ 450〜ᶲ 500 ᶲ  550〜ᶲ  600 ᶲ 650〜ᶲ 700
Resistivity Electrode μ Ω·m 6.2 6.3 6.3 6.3
Nipple 5.0 5.0 4.5 4.5
Flexural strength ≮ Electrode Mpa 10.5 10.6 11.0 11.0
Nipple 18.0 18.0 20.0 22.0
Modulus elasticity ≯ Electrode Gpa 14.0 14.0 14.0 14.0
Nipple 18.0 18.0 22.0 22.0
Bulk density ≮ Electrode g/cm3 1.66 1.66 1.66 1.66
Nipple 1.73 1.74 1.75 1.78
CTE ≯ (100 〜600 °C) Electrode x10-6/℃ 1.5 1.5 1.4 1.4
Nipple 1.4 1.4 1.2 1.2
Ash content ≯ % 0.3 0.3 0.5 0.5
Note: Ash content and coefficient of thermal expansion  are reference indiex

 

Physical and chemical indexes of Donghai isostatically pressed graphite material
Project G330 G347 G458
Density g/cm3 1.79 1.85 1.86
Flexural strength Mpa 39.2 49.0 53.9
Tensile strength Mpa 25.5 31.4 35.3
Young's modulus 9.8 10.8 11.3
Shore hardness 56 58 54
CTE x10-6/℃ 4.8 5.5 4.4
Thermal conductivity W/m·K 104 116 139
Resistivity μ Ω·m  13 11.0 9.5

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