NSP PROTOTYPES MANUFACTORY
Working principle of vacuum molding machine
NSP PROTOTYPES Technology LIMITED
TIME：2024/5/15
The working principle of the vacuum molding machine is to heat the thermoplastic material to a plastic state and then place it into the mold in a vacuum environment. Here's a detailed explanation of the process:
Prototyping: Before the reproduction process can begin, there needs to be an original model (prototype), which is usually produced through CNC machining or 3D printing.
Silicone mold making: Use the original model to make a silicone mold. In this process, silicone and curing agent are mixed and stirred evenly to form a flowing liquid, which is then poured onto the original plate and cured to form a flexible silicone mold.
Vacuum environment: Put the prepared silicone mold into the vacuum molding machine, and extract the air inside the mold to create a vacuum environment. Plasticizing Thermoplastic Materials: Heating a thermoplastic material to a plastic state so that it can flow and fill a mold.
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Pouring molding: In a vacuum state, the heated material is injected into the mold. Since the air in the mold has been removed, the material can completely fit the surface of the mold.
Cooling and shaping: The material is cooled and solidified in the mold, and finally forms the desired product shape.
Take out the product: Finally, take out the finished product from the mold, thus completing the vacuum molding process.
Overall, vacuum molding technology is widely used in prototype development and low-volume production due to its ability to quickly and accurately replicate complex models. Through this technology, high-quality prototype product samples can be produced in a shorter time and at a lower cost.
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