东海的东海的 HKHK 石墨材料石墨材料

Tokai Confidential 2

MATERIAL AVG DENSITY(g/cc) SR(m Ohm.cm) STRENGTH(Mpa) HARDNESS(Shore) AVG GRAIN SIZE

HK-0 1.8 12 39 56 13HK-1 1.85 11 50 58 11HK-15 1.83 12.5 54 62 7HK-2 1.82 13.5 64 64 7HK-75 1.82 16.5 66 72 4HK-3 1.84 15.5 88 78 2

东海碳素的放电加工用石墨材料东海碳素的放电加工用石墨材料

Tokai Confidential 3

电极材料选定

材料显微照片 加工速度 电极消耗 面粗度 粒子径 适用于

HK-0 快 大 粗 大 大型模具

HK-1 大型模具

HK-15 一般模具

HK-2 一般模具

HK-75 精密模具

HK-3 慢 小 细 小 超精密模具

Tokai Confidential 4

各种用途各种用途HK0

HK1

HK15

HK2

HK75

HK3

普遍使用用途：较大的加工面，粗加工最适合。例、鍛造用模具 SURFACE FINISHES OF (6.3m, 250inch, 36vdi) 普遍使用用途：塑料模具的粗加工、鍛造用模具的精加工 SURFACE FINISHES OF (3.2m, 125inch, 30vdi) 高性能用途：低消耗和加工速度都有要求 SURFACE FINISHES OF (2.2m, 88inch, 27vdi)

高性能用途：低消耗和高精度，较高要求的精加工。 SURFACE FINISHES OF (1.6m, 63inch, 24vdi)

高精密用途：非常高要求精加工，低消耗的边角精密塑料模具 SURFACE FINISHES OF (1m, 40inch, 20vdi)

超精密用途：最高級的精度和边角部分的低消耗、还有微細加工特性超精密加工最合适的材料 SURFACE FINISHES OF (0.63m, 25.2inch, 16vdi)

Tokai Confidential 5

HK-0HK-0 　　汽车引擎部件汽车引擎部件

SURFACE FINISHES OF (6.3m, 250inch, 36vdi)

Average grain size13μm

Tokai Confidential 6

　　汽车门拉手汽车门拉手

HK-1HK-1 　SURFACE FINISHES OF (3.2m, 125inch, 30vdi)

Average grain size11μm

汽车内饰件

Tokai Confidential 7

HK-15HK-15 汽车后视镜汽车后视镜

SURFACE FINISHES OF (2.2m, 88inch, 27vdi)

Average grain size７ μm

Tokai Confidential 8

HK-2HK-2 　　汽车前挡风板汽车前挡风板

SURFACE FINISHES OF (1.6m, 63inch, 24vdi)

Average grain size７ μm

Tokai Confidential 9

HK-75HK-75 　　喇叭网喇叭网

SURFACE FINISHES OF (1m, 40inch, 20vdi)

Average grain size4μm

Tokai Confidential 10

HK-3HK-3 　　汽车前车灯配件汽车前车灯配件

SURFACE FINISHES OF (0.63m, 25.2inch, 16vdi)

Average grain size2μm

Tokai Confidential 11

东海的新的东海的新的 EDMEDM 等级 等级 --- --- HK-6HK-6

Tokai Confidential 12

Specific

Gravity

SpecificResistanc

e(μΩm ）

FlexuralStrength

(Mpa)

ShoreHardnes

s

AverageGrain Size(μm)

SurfaceFinish

HK-6 1.86 12 85 68 316(VDI)

Ra=0.63μmRmax=5μm

EDM3 1.75 14 98 65 No Data21(VDI)

Ra=1.12μmRmax=9μm

HK-6 SpecificationsHK-6 Specifications

HK-3

16(VDI)

Ra=0.63μm

Rmax=5μm88 78 21.84 15.5