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2. 发明授权

US4659410A Method of making a silk-screened gasket of enhanced sealing characteristics 失效
标题翻译：制造增强密封特性的丝印垫片的方法
公开(公告)号：US4659410A
公开(公告)日：1987-04-21
申请号：US718643
申请日：1985-04-01
申请人： Donald J. McDowell , Jerri L. Cooper
发明人： Donald J. McDowell , Jerri L. Cooper
IPC分类号： F16J15/12 , B32B31/12
CPC分类号： F16J15/123
摘要： A method of making a gasket assembly of enhanced sealing characteristics comprising the steps of providing a gasket body having an expansive metallic core and at least one compressible fiber-elastomer facing layer and defining at least one clear-through opening, providing a silk screen through which a fluid silicone sealant material is adapted to be squeezed in a desired sealing pattern onto the gasket body, squeezing through the silk screen a fluid, moisture-carbon dioxide curable, silicone sealant material which is curable in the presence of high humidity and carbon dioxide levels into a desired sealing pattern onto the facing layer without intervening barrier coats, preheating the gasket body to a temperature of from about 170.degree. F. to about 185.degree. F. for about 30 to 60 seconds without added moisture, positioning the patterned gasket body in a chamber, and exposing the gasket body in the chamber to a conditioned atmosphere of humidity of at least about 85% relative humidity and of a carbon dioxide volume percent of from about 9 to about 13%, for from about 5 to about 8 minutes, thereby to cure the silicone sealant material to form an elastomeric silicone sealing pattern on the gasket body.
摘要翻译：一种制造具有增强的密封特性的垫圈组件的方法，包括以下步骤：提供具有膨胀金属芯和至少一个可压缩纤维 - 弹性体面向层并限定至少一个透明开口的垫圈主体，提供丝网，通过该丝网流体硅酮密封剂材料适于以期望的密封图案挤压到垫片主体上，通过丝网印刷在高湿度和二氧化碳水平存在下可固化的流体，水分 - 二氧化碳可固化的硅酮密封剂材料在没有中间屏障涂层的情况下将所需的密封图案加工到面层上，将垫片主体预热至约170°F至约185°F的温度约30至60秒而不增加湿气，将图案化垫圈主体放置在一个室，并将该室中的垫圈体暴露于至少约85％相对湿度和湿度的调节气氛约9至约13％的二氧化碳体积百分数，约5至约8分钟，从而固化硅酮密封剂材料以在垫片主体上形成弹性体硅树脂密封图案。

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