초록 ▼

A method for setting up and molding or forming thin coated fabrics as in the production of diaphragms, where a hard die is installed on one plate of a pair of molding plates and a comparably sized or somewhat large die cavity is provided on the opposing plate, the plate set being then assembled in a

A method for setting up and molding or forming thin coated fabrics as in the production of diaphragms, where a hard die is installed on one plate of a pair of molding plates and a comparably sized or somewhat large die cavity is provided on the opposing plate, the plate set being then assembled in a molding press in conventional fashion. The die cavity is filled with an uncured elastomer and the press closed under enough heat and pressure to mold in place an exact elastomer mating die, unique to that plate and press setup. Once the elastomer is cured or vulcanized, the mold is opened and the excess flash is trimmed off. From this point on, the mold is used in the same manner as a traditional mold for molding formed articles such as diaphragms from thin coated fabrics, until the setup is disassembled or otherwise disturbed, after which the elastomer mating die is no longer useful.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method for setting up for molding formed articles from thin sheet material on a molding press configurable with two opposing plates for holding respective matching dies and having means for maintaining consistent alignment between said plates when brought together for

[ What is claimed is:] [1.]1. A method for setting up for molding formed articles from thin sheet material on a molding press configurable with two opposing plates for holding respective matching dies and having means for maintaining consistent alignment between said plates when brought together for molding, comprising the following steps of:immovably positioning a hard die for a first side of said formed articles on a first of said plates,configuring a second of said plates with a die cavity opposite said hard die,installing said plates on said molding press,filling said die cavity with uncured elastomeric material,closing said hard die against said elastomeric material under sufficient heat and pressure to cure said elastomeric material so as to create a molded in place elastomer mating die in said die cavity, andmaintaining said hard die and said elastomer mating die undisturbed in said plates and said plates undisturbed in said press during said molding of said formed articles.