evaporation boat is the very good material for vacuum aluminizing strict requirements which has special
electrical and thermal properties.evaporation boat can meet the strict requirement for metal film and paper with good thermal shock resistance and good chemical inertness of liquid aluminum.bn boat basic composition is boron nitride (BN), boride titanium (TiB2) and aluminum nitride. There evaporation boats are also only boron nitride and boride titanium. In the past few years, evaporation boats has been used by the majority of coating manufacturers in China, and the manufacturers unanimously reflect that ceramic boat has the advantages of long service life, uniform evaporation, fast heating speed and high evaporation efficiency.ceramic evaporation boat is widely used in vacuum aluminium plating packing factory, capacitors metallized coating, screen coating, bronzing coating, anti fake mark coating, reflective coating and paper.
Density:2.8 – 3.2 g / cubic centimeter
Resistivity:200-2000 micro ohm / cm
150*30*10; 130*30*10; 125*30*10;
120*30*10; 120*24*10; 110*26*10;
110*24*10; 110*7*5; 105*20*10
Various specifications and parameters of bn boats are produced according to customer requirements
The use of conditions:
1. working current: 400-900amp.
2.working voltage: 5-15 volts
3. operating temperature: 1300-1750 DEG C
4. evaporation rate: 0.3-0.5 g / min / cm2
5. service life :10-15 hours (the cumulative number of evaporate time)