Features of straight vacuum forming (vacuum molding)
マツバ技研工業
Vacuum forming (vacuum molding) is the most basic molding method. First, a sheet of thermoplastic resin is fixed in a clamp frame and heated to soften it. Next, the mold is raised to expel the air between the sheet and the mold, allowing the molding to take place. In the case of pressure forming, the difference lies in sealing the area around the mold and covering it with a frame to blow in compressed air for pressure molding, but fundamentally, the molding method remains the same.
**Features**
1. The molding process is easy due to the few and simple adjustment factors for molding conditions.
2. The outer surface of the molded product contacts the mold, resulting in high dimensional accuracy of the outer shape.
3. Since any scratches or very small debris on the mold will appear on the outer surface, careful mold management is necessary for molded products that emphasize the outer appearance.
4. Deep drawing is not possible; the limit is about 1/2 of the opening of the molded product.
5. There is a lot of uneven thickness, particularly at the corners of the bottom, which tend to be thin.
6. In cases of multiple parts being produced, they do not affect each other when adjacent to each other. Therefore, producing multiple parts is easy.
7. As the molded product cools, it shrinks in the direction of separation from the mold, making demolding easy.
8. The stretching direction is relatively balanced in the biaxial direction, and since there is no directional strength imparted to the molded product, it has relatively high strength.
Inquiry about this news
Contact Us OnlineMore Details & Registration
Details & Registration
Related Links
Related catalog(3)
![[Case Study] Vacuum Forming Frozen Food Tray](https://image.mono.ipros.com/public/catalog/image/01/170/600969/IPROS63374966474164074851.jpeg?w=120&h=170)
Distributors
