Production Process Of Vacuum Aluminized Film
DATE：2019/8/27 8:47:15 / READ： / SOURCE：This station
Production process of vacuum aluminized film:
The vacuum evaporation process has two types of indirect vapor deposition and direct vapor deposition. The direct evaporation process has three types of equipment: batch, semi-continuous and continuous. The key to the continuous evaporation equipment is that the vaporized substrate film is placed outside the vacuum chamber and can be automatically rolled and reelled. It is sealed with the vacuum chamber by an air lock or a dynamics pumped chamber. The substrate film enters and exits. The air lock has good airtightness, so that vapor deposition can be continuously performed. Without affecting the high vacuum chamber
The degree of vacuum.
The advantages of the batch process are:
(1) Investment costs are relatively low;
(2) The system can easily reposition the bracket according to different substrates and components, and easily change the components in the vacuum chamber;
(3) It is easy to change the evaporation system to adapt to different vapor deposition metals of different substrates;
(4) Operation and maintenance are relatively simple;
(5) The equipment is highly reliable and requires no special design. The biggest disadvantage is that in order to discharge the water vapor on the walls and mechanical parts at the start of production, it takes a long time and the energy utilization rate is low.
The advantages of a continuous process are:
(1) The production efficiency is relatively high, and the time required for restarting and the energy when pumping to high vacuum are not required;
(2) The coating quality is higher and the pinholes are less;
(3) The cost is relatively low, which saves energy by saving the energy of restarting the pump to a high vacuum.
The biggest drawback is that the equipment investment is large, and special technology is required, and the maintenance and repair requirements are high. The substrate width of the vapor-deposited film is 609.6 to 2133.6 mm, and the film is automatically controlled by a torque motor to speed up the unwinding and winding, so that it always has a uniform constant linear velocity and thus has a uniform coating thickness. The thickness of the coating is controlled by the volatilization speed of the aluminum wire and the linear velocity of the film. Increasing the amount of melting enthalpy current and amplifying the melt gasification rate can increase the thickness of the plating layer. Conversely, increasing the film winding speed, the thickness of the plating layer is reduced. The film rewinding and unwinding is driven by two synchronous torque motors.
The vacuum evaporation process has two types of indirect vapor deposition and direct vapor deposition. The direct evaporation process has three types of equipment: batch, semi-continuous and continuous. The key to the continuous evaporation equipment is that the vaporized substrate film is placed outside the vacuum chamber and can be automatically rolled and reelled. It is sealed with the vacuum chamber by an air lock or a dynamics pumped chamber. The substrate film enters and exits. The air lock has good airtightness, so that vapor deposition can be continuously performed. Without affecting the high vacuum chamber
The degree of vacuum.
The advantages of the batch process are:
(1) Investment costs are relatively low;
(2) The system can easily reposition the bracket according to different substrates and components, and easily change the components in the vacuum chamber;
(3) It is easy to change the evaporation system to adapt to different vapor deposition metals of different substrates;
(4) Operation and maintenance are relatively simple;
(5) The equipment is highly reliable and requires no special design. The biggest disadvantage is that in order to discharge the water vapor on the walls and mechanical parts at the start of production, it takes a long time and the energy utilization rate is low.
The advantages of a continuous process are:
(1) The production efficiency is relatively high, and the time required for restarting and the energy when pumping to high vacuum are not required;
(2) The coating quality is higher and the pinholes are less;
(3) The cost is relatively low, which saves energy by saving the energy of restarting the pump to a high vacuum.
The biggest drawback is that the equipment investment is large, and special technology is required, and the maintenance and repair requirements are high. The substrate width of the vapor-deposited film is 609.6 to 2133.6 mm, and the film is automatically controlled by a torque motor to speed up the unwinding and winding, so that it always has a uniform constant linear velocity and thus has a uniform coating thickness. The thickness of the coating is controlled by the volatilization speed of the aluminum wire and the linear velocity of the film. Increasing the amount of melting enthalpy current and amplifying the melt gasification rate can increase the thickness of the plating layer. Conversely, increasing the film winding speed, the thickness of the plating layer is reduced. The film rewinding and unwinding is driven by two synchronous torque motors.
Author：admin