Learn To Operate A Evaporation Boat In Seconds

Evaporator boat is a generic term for all evaporator vessels. Depending on the purpose of use, its composition formula is different. The materials involved are boron nitride, titanium diboride, aluminum nitride, alumina, zirconia, silicon carbide, silicon nitride, and many other metallic and non-metallic compounds.

Evaporation boat operation

1. When using a new evaporation boat, control the exact time by screen operation, gradually raise the voltage for 5 minutes each time, and then raise it again (e.g., 7v-8v-9v) Holmium starts up according to the program set by the alumina machine. The evaporation boat is heated for annealing by gradually increasing the voltage in order to release the internal stresses and at the same time the gases absorbed inside the boat material are released. The aluminum wire is fused to the evaporation boat and takes approximately 20 minutes to wet. Wetting too quickly will reduce the stability of the vaporizing gas and greatly shorten the service life of the evaporation boat.

2. The longer the operating time, the hotter the evaporation boat. Must maintain a continuous drop in voltage, voltage drop at the same time, pay attention to reduce the amount of aluminum wire feed. When continuous production. The first volume of film evaporation at the end of the evaporation boat voltage than the beginning of evaporation evaporation boat to start the voltage is lower. 1500 ℃ when the high temperature resistivity is evaporation boat design use and stereotypes of the resistivity, which and evaporation of the power supply to match.

3. Evaporation boat after the first use of a brush to gently brush the boat groove surface of the aluminum slag, and each subsequent use of a wire brush to clear the brush. After each use, use a wire brush to clean the surface of the boat groove. Check the evaporator boat to make sure it is clamped, otherwise it will jump when starting.

4. When starting the evaporation boat, but one of them is not lit, do not continue to send the aluminum wire to produce an arc until the ignition, you should first adjust the aluminum wire forward close to the evaporation boat, and then start the evaporation boat, so that it is lit, otherwise it will not only destroy the fixture, but also destroy the evaporation boat and shorten the life of the evaporation boat.

5. The evaporation boat with the largest aluminum adhesion surface has a wider evaporation range, the evaporation layer is easy to control and lasts for a longer evaporation time.

6. The life of the evaporator boat is directly affected by the temperature of the working environment.