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Hot map, will be different shapes and colors of hot drilling, according to the actual needs of the pattern, is generally lined up in a layer of white on the grain of plastic, and then covered with a layer of transparent plastic film to do protection.
The process of making a hot drawing is called the platoon drill.
There are two ways of manual and automatic:
A, Manual drilling: Use the laser to hollow out the required pattern on the cardboard, and then use a brush or a cloth will be hot drilling swept to the hollow part, if there is missing, you can repeatedly sweep several times, if there is a leak drill or diamond direction is wrong, you can use crayons to do correction.
The following diagram of the specific process:
B, automatic drilling: The use of ultrasonic principle, automatic hot drilling in the plastic film on the machine; At present, there is no more mature of this automatic machine, foreign countries such as South Korea, Germany imports mainly, but the speed of the automated machine is relatively slow, and high cost, so it has not been widely used by domestic manufacturers.