首页> 外文期刊>Journal of prosthetics and orthotics: JPO >Eliminating Distortion by Internal Surface Cooling of Thermoplastics Vacuum Pulled on Polyurethane Molds to Manufacture Ankle-Foot Orthoses
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Eliminating Distortion by Internal Surface Cooling of Thermoplastics Vacuum Pulled on Polyurethane Molds to Manufacture Ankle-Foot Orthoses

机译:通过在聚氨酯模具上抽真空的热塑性塑料的内表面冷却来消除变形,以制造脚踝矫形器

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摘要

The purpose of this study is to determine a process that will allow for copolymer ankle-foot orthoses (AFOs) to be cooled in a relatively short period while eliminating the distortion associated with force-cooling thermoplastics. This is accomplished by force-cooling the internal surface of the AFO using tap water. The results of this study show copolymer AFOs manufactured using a polyurethane mold could be cooled in 10 to 15 minutes with time starting the instant the thermoplastic is removed from the oven. By dramatically decreasing the amount of time it takes to cool the AFO and strengthening the internal surface, manufacturers are able to offer patients a turnaround time of less than 3 hours.
机译:这项研究的目的是确定一种过程,该过程将允许在相对较短的时间内冷却共聚物踝足矫形器(AFO),同时消除与强制冷却热塑性塑料相关的变形。这可以通过使用自来水强制冷却AFO的内表面来实现。这项研究的结果表明,使用聚氨酯模具制造的共聚物AFO可以在10到15分钟内冷却,随着时间的流逝,立即将热塑性塑料从烤箱中取出。通过显着减少冷却AFO和加固内表面所需的时间,制造商可以为患者提供不到3小时的周转时间。

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