| 摘要 |
An aluminum insert for a rice cooker is coated before drawing with a three-layer release coating. The coated insert is then deep drawn without damaging the coating. The coating has a high proportion of polytetrafluoroethylene to polyamide-imide and a low level of colloidal silica in the primer. After drawing, the uncoated exterior of the insert may be anodized to provide a durable, attractive finish.
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