بوتقات نيتريد البورون لنظام الغزل بالذوبان الفراغي
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بوتقات نيتريد البورون لنظام الغزل بالذوبان الفراغي
سداسي الشكل 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.
ال Boron Nitride Crucibles are widely used for vacuum melt spinning system,such as :
* Nonferrous & ferrous metals such as Al, Bi, Ge, Sb, Sn, Cd, Pb, ني, Zn, النحاس, ملغ, Im, Fe, ستانلس ستيل…
* 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.
خصائص المواد:
غرض | وحدة | BN-2000 | BN-2300 | BN-2800 | BN-3000 |
Main Content | - | BN>99% | BN+Al2O3 | BN + AlN | BN+ZrO2 |
اللون | - | أبيض | Light Grey | Dark Grey | Dark Grey |
كثافة | ز / سم3 | 1.95-2.00 | 2.25-2.35 | 2.75-2.85 | 2.90-3.00 |
قوة العاطفة | الآلام والكروب الذهنية | 30 | 65 | 85 | 90 |
قوة الضغط | الآلام والكروب الذهنية | 55 | 145 | 205 | 220 |
Electrical Resistivity | Ω·سم | >1014 | >1013 | >1013 | >1012 |
الأعلى. Use Temp. (Air) | درجة مئوية | 900 | 1,000 | 1,000 | 1,000 |
الأعلى. Use Temp. (Vacuum) | درجة مئوية | 1,900 | 1,750 | 1,800 | 1,750 |
الأعلى. Use Temp. (خامل) | درجة مئوية | 2,000 | 1,750 | 1,800 | 1,750 |
توصيل حراري | W / مك | 35 | 30 | 85 | 30 |
كوت (25 - 1,000 درجة مئوية) | 10-6/ك | 1.5 | 2 | 2.8 | 3.5 |
لويزيانا بيليه جريل الشاعل
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.