BN's main features:Since BN has high thermal resistance (2800 °C in an inert gas does not soften), high thermal conductivity (and, like iron), low thermal expansion coefficient (a very good thermal shock resistance), excellent electrical properties (a ceramic The best high temperature insulation materials), and ease of processing performance and other characteristics make it applicable to a variety of devices that require fast heating, such as: 1. Graphite heating electrode casing - for high-temperature vacuum tube furnace graphite electrodes, characteristics: high temperature, high temperature insulation, thermal shock, arc resistance, long life, maintenance-free! 2. Nitride insulator - for high temperature vacuum furnaces and heating wall will separate the graphite electrodes, graphite electrodes are not heated to ensure that short wall; characteristics: high temperature resistance, good insulation, thermal shock resistance, arc good, long life! Sets in through the heating wall at the graphite electrode, arc-resistant ceramic is much higher than corundum, deformation will not melt! 3. Nitride vacuum furnace parts - high temperature, for wearing a tungsten wire, molybdenum wire accessories, such as fever or Sri Lanka as the electrode fixing bolts 1. Boron nitride material structure, the bulk density ≥ 2.4g/cm3, compressive strength ≥ 300MPa, apparent porosity ≤ 0.5%;2. Organization delicate, smooth wear, no cracks, no delamination;3. Temperature above 1600 degrees;4. Thermal expansion coefficient.For injection of molten metal alloy to the cooling by moving the substrate to produce rapid cooling and solidification of rapidly solidified metal rib