ZSBN Ceramic Break Ring for Molten Metal Casting Boron Nitride UPT-005 manufacturer from China Xiamen Unipretec Advanced Materials Co.,Ltd

ZSBN Ceramic Break Ring for Molten Metal Casting Boron Nitride

Price:	5.0~10.0 USD
Payment Terms:	T/T,WU;Paypal
Place of Origin:	Fujian, China (Mainland)


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Product Detail

Model No.: UPT-005

Production Capacity: 100000pcs/year

Delivery Date: 40days

Material: Boron Nitride

Density: 3.22g/cm3

Flexural Strength: 51Mpa

Thermal Conductivity: 20W/(m•K)

Max. Working Temperature: 960℃

Means of Transport: Ocean,Air

Packing: wooden box / carton box

Brand Name: UNIPRETEC

Color: Gray

Young's Modulus: 670Gpa

Compressive Strength: 230Mpa

Thermal shock resistance: >1500ΔT(C°)

Unipretec can supply Alumina Ceramics / Zirconia Ceramics / Machinable Glass Ceramics / Boron Nitride / Silicon Nitride

Boron Nitride is a synthetic technical ceramic material, which is available in powder, solid, aerosol and liquid forms. It has out-standing thermal characteristics; high thermal conductivity and excellent thermal shock resistance and is stable in inert and reducing atmospheres up to 2000°C, and in oxidizing atmospheres to 850°C. In its solid form, Boron Nitride can easily be machined to close tolerances in virtually any shape. After machining, it is ready for use without additional heat treating or firing operations.

ZSBN Ceramic Break Ring for Molten Metal Casting Boron Nitride

Boron Nitride Properties:

*Excellent thermal shock resistance

*High electrical resistivity

*Low density

*High thermal conductivity

*Isotropic (thermal conductance is different in different planes)

*Corrosion resistant

*Good chemical inertness

*High temperature material

*Excellent lubricating properties

*Low coefficient of friction

*Non-wetting (without oxidization)

*High dielectric breakdown strength

*Excellent Machinability

Characteristics	Unit	95 Al2O3	99 Al2O3	ZrO2	GPSi3N4	BN	Glass Ceramic
Crystal Structure	-	hexagonal	hexagonal	tetragonal	hexagonal	hexagonal	-
Color	-	white	ivory	white	gray	white	white
Density	g/cm3	3.65	3.88	5.95	3.22	2.26	2.55
Water Absorption	%	0	0	0	0	0.0-1.0	0
Young's Modulus	Gpa	280	350	205	295	670	65
Vickers Hardness	Gpa	14	20	12	18-20	-	-
Flexural Strength @R.T.	Mpa	280	300	900	650	51	100
Compressive Strength @R.T.	Mpa	2000	2500	2200	2200	230	500
Thermal Conductivity @R.T.	W/(m*k)	18-25	30	2.2	25	20	1.7
Thermal shock resistance	Δ(℃)	220	180-200	280-350	450-650	>1500	25-100
Max. Working Temperature @R.T.	℃	1500	1700	850	1200	960	800
Volume Resistivity @R.T.	Ω*cm	>10^15	>10^14	>10^12	>10^14	10^13	10^16
Dielectric Constant (1 MHz @R.T. )	-	9.5	9.8	26	8.2	4.08	6.02
Dielectric Strength	kV/mm	16	22	-	16	375	40

Typical Uses of Boron Nitride

*Electronic parts — heat sinks, substrates, coil forms, prototypes

*Boron doping wafers in silicon semiconductor processing

*Vacuum melting crucibles

*CVD crucibles

*Microcircuit packaging

*Sputtering targets

*High precision sealing, brazing, and metallizing fixtures

*Microwave tubes

*Horizontal caster break rings

*Low friction seals

*Plasma arc insulators

*High temperature furnace fixtures and supports

ZSBN Ceramic Break Ring for Molten Metal Casting Boron Nitride

Maximum Sizes for Production

L*W*H: 260mm*300mm*160mm, OD*H: Φ260mm*160mm

About UniPreTec

UniPreTec provides high-performance ceramic products in Alumina, Zirconia, Boron Nitride, Machinable Glass Ceramic, Silicon Nitride and further special materials. Along with these materials, we offer several machining from which to choose such as cutting, drilling, sawing, turning, grinding, polishing etc.. Furthermore, our technologies and equipments allow us to provide various and flexible forming processes, like dry pressing, isostatic pressing, extrusion, injection moulding and slip casting.