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Isostatic Graphite

Graphite Blocks HK

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Graphite Blocks HK

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Properties isostatic

Isostatic graphite, also known as izoprasowanym or isotropic graphite is characterized by równokierunkowym distribution of crystals in the structural network. It has the same uniform structure and physical properties at every point in every direction. For these reasons, it combines high strength both in bending and compression with an adequate hardness in the whole volume of the material, regardless of the section.

Graphite blocks HK Tokai

We offer the isostatic graphite Tokai Japanese company known for producing electrodes for EDM. Electro (EDM) is a precise technology being used increasingly because of the extensive technical capabilities. Becoming more widely used in the isostatic graphite EDM, according to a comprehensive summary of labor costs per unit. The cost of the electrode material, the time of its execution, the time drilling, surface finish and electrode wear hollow depend largely on the material selected for the electrodes. Isostatic graphite are undoubtedly many advantages over traditional materials, primarily graphite provides: ease of machining, considerable mechanical strength, high performance drilling process.

Specyfication:
Type of Graphite	unit	HK-0	HK-1	HK-15	HK-2	HK-20	HK-75	HK-3
Density (min)	g/cm³	1.80	1.85	1.83	1.82	1.86	1.82	1.84
Resistance (max)	µΩm	12.0	11.0	12.5	13.5	12.0	16.5	15.5
Flexural Strength	MPa	39.0	50.0	54.0	64.0	66.0	66.0	88.0
Shore hardness (min)	shore	56	58	62	64	60	72	78
Grading of internal structure	µm	13	11	7	7	6	4	2

Performance:
Type of Graphite	destiny	Ra [µm] (CH)*
HK-0	Coarse	6,3 (36vdi)
HK-1	Coarse	3,2 (30vdi)
HK-15	Universal	2,2 (27vdi)
HK-2	Universal	1,6 (24vdi)
HK-20	fnisher	1,26(22vdi)
HK-75	fnisher	1,0 (20vdi)
HK-3	fnisher	0,63 (16vdi)
^*Ra - the average measure of the roughness of machined surfaces in microns, CH - Charmill'owski scale equivalent to the German VDI.

Usefulness of graphite for EDM Tokai HK

Types of isostatic graphite HK Tokai's are specially designed for EDM customers. The classification is designed so that each user has found the type of EDM graphite suitable for their needs and applications. HK-type graphite Tokai are used by renowned international companies including Volkswagen, Skoda, Auto-Motive, Magneti Marelli, Italy and Germany, Rolls Royce, Alstom Power, General Electric, etc. Everywhere gained modern opinion about the best material characteristics in machining and drilling process efficiency. Such opinions are the result of years of experience, continuous R & D and close collaboration with manufacturers of EDM: Sodick, Agie, Charmilles, Makino, Ona. Tokai Carbon Group sells more than 500 tons of graphite for EDM year, giving him the largest market share.

SINOGRAF SA 2010