真空溶融紡糸システム用窒化ホウ素るつぼ

絶縁用六角BN窒化ホウ素セラミックパイプ
電気絶縁体熱分解窒化ホウ素 PBN プレート
真空溶融紡糸システム用窒化ホウ素るつぼ
真空溶融紡糸システム用窒化ホウ素るつぼ 1
真空溶融紡糸システム用窒化ホウ素るつぼ
真空溶融紡糸システム用窒化ホウ素るつぼ 1

真空溶融紡糸システム用窒化ホウ素るつぼ

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真空溶融紡糸システム用窒化ホウ素るつぼ

六角 boron nitride (BN) is made by hot-pressed sintering,boron nitride crucible have a good self-lubricate ceramic crucibles that can withstand high temperature and maintain its lubricating capability in a high vacuum environment. boron nitride ceramic has similarly with graphite mechanically but offers excellent electrical resistance.

Boron nitride ceramic is chemically and has relatively good thermal conductivity, low thermal expansion and microwave clarity. Boron nitride can be quickly machined as well. Moreover, glass, salts and the rest of liquid metals are non-wetting. This ensures that neither of these compounds can be moistened, and it is far more immune to chemical assaults.
六方晶窒化ホウ素 (h-BN) performs very well under high heat condition and is effective in the air at temperatures of up to 900 degrees C, in the vacuum at 1,900 degrees C and in the inert environment at 2,000 degrees C. BN is self-lubricating as well, したがって、より長い寿命を保証します, it does not need the use of molecules of gas or water stuck in its layers. Because of this, in a vacuum, which is important for aerospace applications, boron nitride (BN) can work perfectly.

空気圧式ロータリーバルブ式セラミック計量ポンプ Boron Nitride Crucibles are widely used for vacuum melt spinning system,そのような :
* Nonferrous & ferrous metals such as Al, Bi, Ge, Sb, Sn, Cd, Pb, Ni, Zn, 銅, マグネシウム, Im, フェ, Stainless Steel…
* Glass melt, Soda glass, Cryolite
* Silicon molten salt, fluoride, slag

there are standard BN crucibles for this melt spinning system application, certainly we also can make by customized.

材料特性:

アイテム
単位
BN-2000
BN-2300
BN-2800
BN-3000
メインコンテンツ
–
BN>99%
BN + Al2O3
BN + AlN
BN + ZrO2
色
–
白い
Light Grey
Dark Grey
Dark Grey
密度
g / cm3
1.95-2.00
2.25-2.35
2.75-2.85
2.90-3.00
曲げ強度
Mpa
30
65
85
90
固体酸化物形燃料電池
Mpa
55
145
205
220
Electrical Resistivity
Ω·アルミナセラミックネジ
>1014
>1013
>1013
>1012
マックス. Use Temp. (Air)
°C
900
1,000
1,000
1,000
マックス. Use Temp. (Vacuum)
°C
1,900
1,750
1,800
1,750
マックス. Use Temp. (不活性)
°C
2,000
1,750
1,800
1,750
熱伝導率
W / m.K
35
30
85
30
コート (25 – 1,000 °C)
10-6/K
1.5
2
2.8
3.5

応用

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, NS.

 

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