Invention Grant
US08128857B2 Method of shortening the time to compression mold a roofing shingle or tile and apparatus for facilitating same
有权
缩短压缩模具屋顶瓦房或瓷砖的时间的方法和便于其使用的装置
- Patent Title: Method of shortening the time to compression mold a roofing shingle or tile and apparatus for facilitating same
- Patent Title (中): 缩短压缩模具屋顶瓦房或瓷砖的时间的方法和便于其使用的装置
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Application No.: US12636024Application Date: 2009-12-11
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Publication No.: US08128857B2Publication Date: 2012-03-06
- Inventor: Thomas Kevin MacKinnon , David Nelson , Nolan Loy Son , Trevor Reeve
- Applicant: Thomas Kevin MacKinnon , David Nelson , Nolan Loy Son , Trevor Reeve
- Applicant Address: US PA Valley Forge
- Assignee: CertainTeed Corporation
- Current Assignee: CertainTeed Corporation
- Current Assignee Address: US PA Valley Forge
- Agency: Paul and Paul
- Main IPC: D01D5/16
- IPC: D01D5/16 ; B27N5/18 ; H05B6/02 ; B29C67/00 ; A01J21/00 ; B32B27/32

Abstract:
A method of shortening cycle time required to compression mold shingle or tile is provided, wherein carrier plates are comprised of a surface material and a base, and receive a thermoplastic material, thereon. The roofing material is applied to the carrier plate and the carrier plate is subjected to induction heating, by which its surface material has its temperature raised, without substantially raising the temperature of the carrier plate base, such that the thermoplastic material applied thereto is kept heated in the compression mold. Cooling of the thermoplastic material is by heat transfer from the carrier plate surface material to the carrier plate base, and with both materials having good heat conduction capability. The carrier plate surface material has a high receptivity to being heated by induction heating relative the carrier plate base. The carrier plates are serially delivered through the process, to the compression mold.
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