Anillo de arandela aislante cerámico industrial de nitruro de boro poroso

Máquinas de corte por láser Sustrato cerámico PBN de nitruro de boro pirolítico
Elementos electrónicos de calefacción compuestos PBN PG
porous boron nitride industrial ceramic washer ring
Anillo cerámico poroso redondo de nitruro de boro pirolítico PBN 2
porous boron nitride industrial ceramic washer ring
Anillo cerámico poroso redondo de nitruro de boro pirolítico PBN 2

Anillo de arandela aislante cerámico industrial de nitruro de boro poroso

Categorías: Etiquetas: , ,
  • Descripción
  • Consulta

Anillo de arandela aislante cerámico industrial de nitruro de boro poroso

Boron nitride BN ceramic：

Nitruro de boro (BN) is a white, low porosity refractory material with physical and mechanical properties similar to Graphite.
Sin embargo, unlike Graphite, Nitruro de boro has high thermal conductivity and good thermal shock performance. The most common formulation of Boron Nitride contains boric oxide, which can cause Boron Nitride to absorb moisture, resulting in swelling and property degradation.
Propiedades materiales
ITEM
UNIT
BN-2000
BN-2300
BN-2800
BN-3000
Contenido principal
Varilla aislante de cerámica de alúmina mm
BN>99%
BN+Al2O3
BN+AlN
BN+ZrO2
Color
Varilla aislante de cerámica de alúmina mm
blanco
Light Grey
Dark Grey
Dark Grey
Densidad
g/cm3
1.95-2.00
2.25-2.35
2.75-2.85
2.90-3.00
Fuerza flexible
Mpa
30
65
85
90
Fuerza compresiva
Mpa
55
145
205
220
Electrical Resistivity
Vaya·cm
>1014
>1013
>1013
>1012
Max. Use Temp. (Air)
℃
900
1,000
1,000
1,000
Max. Use Temp. (Vacuum)
℃
1,900
1,750
1,800
1,750
Max. Use Temp. (Inerte)
℃
2,000
1,750
1,800
1,750
Bola de rodamiento de cerámica de circonio
W / m.K
35
30
85
30
Redil (25 Varilla aislante de cerámica de alúmina mm 1,000 ℃)
10-6/K
1.5
2
2.8
3.5

Anillo de arandela aislante cerámico industrial de nitruro de boro poroso

We generally choose a form known as hexagonal boron nitride (h-BN). Hexagonal BN is a composite of boron and nitrogen that is both heat and chemically resistant. It is the most robust crystalline type of boron nitride, along with graphite. Since it has a composition identical to graphite, although you will even hear it named «white graphite» since it is white in colour. What is more, hardness of hexagonal BN is similar to graphite, so it is very easily to machine the parts into required shape, only one small tip,machining work should be process in dry conditions with no cooling liquid. También, visible dust can be created during machining,so wearing mask and goggle is necessary.

Solicitud

1.Used in high voltage and high frequency electric and plasma arc insulator and various heater insulators, heating tube sleeve and high temperature, high frequency, high voltage insulation cooling parts, high frequency application of electric furnace materials.

2.high voltage and high frequency electric and plasma arc insulator and various heater insulators, heating tube sleeve and high temperature, high frequency, high voltage insulation cooling parts, high frequency application of electric furnace materials.
3.It can be manufactured high-temperature components, rocket combustion chamber lining, thermal shielding of spacecraft, corrosion resistant parts of MHD generators, etc.

Contáctenos






Productos relacionados