There are generally three types of blister packaging molds: plaster mold, electroplated copper mold and aluminum mold.
Gypsum mold: use gypsum to carve into shape in a semi-wet state, and then dry it to form a mold. The cost of the plaster mold is low and it is easy to modify, but the accuracy of the plaster mold is not high enough, the surface is not smooth and fragile and not durable, so it is often used for casting. Pretend to be a mold for electroplating copper molds or some blister molds for low-volume production.
Aluminum mold: Machined from aluminum ingots (lathes, milling machines, CNC, etc.). Aluminum molds have high precision, smooth surface and durability, but the price is very expensive. Aluminum molds are generally used on plastic products that cannot be achieved by copper molds with high precision requirements.
Electroplating copper mold: After the sample is made of plaster mold, electroplating a layer of copper shell is the electroplating copper mold. The cost is higher than that of the plaster mold, but it is much cheaper than the aluminum mold. Copper mold is the most commonly used plastic mold.
