Ultrasonic assisted deposition of anti-stick films on metal oxides
AssigneeKorry Electronics Co.
InventorsTimothy R. Robinson, Leonard Y. Nelson
Life of this patent
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Abstract
A method and apparatus for ultrasonic assisted deposition of a release agent onto a workpiece is disclosed. The release agent can be any fluorinated or non-fluorinated phosphorous-containing organic acid. The workpiece can be any workpiece desired to be coated with the release agent, such as a surface needing an anti-stick coating required in a plastic casting or injection mold. Metal oxide workpiece surfaces strongly bond to fluorinated phosphorus-containing organic acids. In particular, the present invention can deposit anti-stick coatings onto smooth or porous surfaces, such as anodized aluminum and its alloys, using ultrasonic assisted deposition
Claims61
A method for depositing a release agent on a surface of a workpiece, comprising steps for:
- providing a workpiece having a desired feature to be coated with a suitable release agent;
- providing a solution comprising the mold release agent and water, wherein the workpiece can be placed within said solution;
- and
- providing ultrasonic energy to the solution, said workpiece being exposed to said energy at a suitable power level and for a suitable time to provide the feature with a film containing the release agent.
A method for making a thermoset molded body, comprising steps for:
- providing a workpiece having an ultrasonically applied release agent at a mold feature;
- providing a suitable thermoset resin in contact with the mold feature;
- curing the resin to form a molded body;
- and
- separating the molded body from the workpiece.
A system for making molded bodies, comprising:
- a once-anodized aluminum workpiece;
- a solution comprising a suitable release agent wherein the workpiece can be suitably placed in said solution;
- and
- an ultrasonic tool located in a suitable relationship to the workpiece to deliver ultrasonic energy to the workpiece when the workpiece is placed in the solution.
A mold for making molded bodies, comprising:
- a suitable mold feature, and
- an ultrasonically-applied release agent on said mold feature.
Dependencies are inferred from the claim text.