About Thermoforming and Vacuum Forming Equipment
Thermoforming equipment and vacuum forming equipment forms thermoplastic sheets or films over molds into finished shapes. First, the thermoplastic sheet or film is heated with electric, infrared, or natural gas heaters. Next, the thermoplastic material is stretched over a temperature-controlled, single-surface, aluminum mold. When the thermoplastic film is cooled, the formed part is trimmed from the sheet. Typically, the unused trim is reprocessed for subsequent use. There are several basic types of thermoforming equipment and vacuum forming equipment. Pressure forming equipment applies a flow of positive air pressure between the mold’s surface and the thermoplastic sheet or film. Vacuum forming equipment applies negative air pressure between the mold and thermoplastic. Twin-sheet forming equipment combines two thermoplastic sheets into a uniform part. Drape forming equipment is used to produce parts with a gradual bend. Thermoforming equipment and vacuum forming equipment that uses free blowing or simple-sheet bending techniques are also available.
Engineering Web: Thermoforming and Vacuum Forming Equipment - Machine Design
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Paintless parts | Machine Design With increased interest in large IMD parts, several thermoforming-equipment manufacturers have devised more sophisticated equipment. |
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Machine Design | Vacuum applied through holes in the die attracts the fibers to the screens and removes excess water for recirculation back into the process.' A |
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Packaging Goes Back to Nature | Consumer demand is driving... Vacuum applied through holes in the die attracts the fibers to the screens and removes excess water for recirculation back into the process.' A |
