发明名称 |
Seal-less reusable vacuum bag |
摘要 |
A reusable vacuum bag is configured for application of at least one sealant bead for providing vacuum tight sealing of the reusable vacuum bag to a forming tool during fabrication of a composite part. The reusable vacuum bag comprises at least one elastomeric layer and a fluoroelastomeric strip. The elastomeric layer is sealable to the forming tool and has a sealing flange extending peripherally thereabout. The fluoroelastomeric strip extends substantially along the sealing flange and has first and second surfaces. The elastomeric layer and the fluoroelastomeric strip each have polymers and a peroxide curative. The peroxide curative initiates vulcanization wherein the polymers of each material cross-link at an elevated temperature to form double-oxygen bonds such that a permanent bond is formed between the sealing flange and the fluoroelastomeric strip at the first surface. The fluoroelastomeric strip is releaseably adhered at the second surface to the sealant bead.
|
申请公布号 |
US6851945(B2) |
申请公布日期 |
2005.02.08 |
申请号 |
US20020316564 |
申请日期 |
2002.12.11 |
申请人 |
NORTHROP GRUMMAN CORPORATION |
发明人 |
POTTER JOHN;MEAD WILLIAM |
分类号 |
B29C70/44;B29C70/54;(IPC1-7):B29C70/44 |
主分类号 |
B29C70/44 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|