초록 ▼

A method for manufacturing a panel, such as an automotive panel, using the resin transfer molding (RTM) process. The method includes the steps of preforming a first mat of glass fibers into a shape approximating one side of the panel and, similarly, preforming a second mat of glass fibers into a sha

A method for manufacturing a panel, such as an automotive panel, using the resin transfer molding (RTM) process. The method includes the steps of preforming a first mat of glass fibers into a shape approximating one side of the panel and, similarly, preforming a second mat of glass fibers into a shape approximating a second side of the panel. A urethane core is sandwiched in between the preformed mats to thereby form a premolded assembly. This premolded assembly is placed into a mold and a settable resin is injected into the mold to form the panel.

대표청구항 ▼

A method for manufacturing a panel comprising the steps of: preforming a first mat of glass fibers into a shape approximating one side of the panel, preforming a second mat of glass fibers into a shape approximating a second side of the panel, sandwiching a core in between said preformed mats to the

A method for manufacturing a panel comprising the steps of: preforming a first mat of glass fibers into a shape approximating one side of the panel, preforming a second mat of glass fibers into a shape approximating a second side of the panel, sandwiching a core in between said preformed mats to thereby form a premolded assembly, placing said premolded assembly in a mold, injecting a settable resin into said mold, and placing a flexible sheet between the core and one of said mats prior to forming the premolded assembly wherein said sheet minimizes shrinkage lines on said panel.