Production Technology Of Composite Ceramic Evaporation Boat

The composite ceramic evaporation boat is mainly used in the production of coating in the packaging industry can also be used in the integrated circuit coating lamp industry, there is no doubt that the composite ceramic evaporation boat is the main force of the aluminum plating industry. Widely used, the following is to explain the production technology of composite ceramic evaporation boat.

Evaporation boat products using the production technology is "hot pressing sintering". This production technology refers to the sintering of the body under high temperature and high pressure, and the molding and firing of the body are completed at the same time.

At present, the temperature of the finalized products in China is between 1700-1900℃, and the temperature of the new high-tech electric furnace can reach more than 2300℃. Under this condition, the evaporation boat is of high quality. It has been proved that the evaporation boat manufactured in new America is heated to 1900℃. The improvement of temperature to the product in the process of sintering (hot pressing) so that the density of the body is higher, you can obtain the products without porosity, so that the product anti-bending anti-seismic evaporation spread and other properties, because the evaporation boat physical indicators are mainly two, density and resistivity. In the process of use should have the corresponding density and the corresponding resistivity.

The working temperature of composite ceramic evaporation boat in vacuum coating machine is generally about 450℃, and the service life of the general evaporation boat is 12 to 15 hours.

In the production of evaporation boat, BN, TiB2, ALN according to a fixed proportion of tempered into the mold, high temperature and high pressure, and then, waiting for cooling mold, molding products for cutting running-in, we need to produce boron nitride ceramic - composite ceramic evaporation boat.