发明名称 METHOD AND APPARATUS FOR MOLDING A THERMOFORMABLE SHEET MATERIAL
摘要 <p>A method and apparatus for molding thermoformable sheet material is set forth. The method includes the steps of providing a conventional stamp type mold, one section of which provides a compliant mold member which is augmented by diaphragm. The diaphragm coacts with the compliant member during a molding phase to ensure dimensional uniformity in the molded article. Further, tight or detailed areas are easily molded by making use of the compliant and diaphragm members. In a further embodiment, tension adjusting is achieved during molding by a series of discrete tension members. The tension members cooperate with the compliant and diaphragm members to significantly improve dimensional uniformity and prevent wrinkling in the molded article.</p>
申请公布号 WO2003061930(A2) 申请公布日期 2003.07.31
申请号 CA2003000051 申请日期 2003.01.17
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