초록 ▼

A composite material for vehicle hulls and a hull molding process comprising a gel coat, a skin coat, a bulk fiberglass layer and adhesive applied to a top mating surface and a bottom mating surface within a top mold and a bottom mold, wherein the adhesive forms a connector. The two molds are placed

A composite material for vehicle hulls and a hull molding process comprising a gel coat, a skin coat, a bulk fiberglass layer and adhesive applied to a top mating surface and a bottom mating surface within a top mold and a bottom mold, wherein the adhesive forms a connector. The two molds are placed together, and after the adhesive sets, foam is introduced into at least one cavity formed when the molds are brought together. The molds remain closed while the foam is introduced.

대표청구항 ▼

A composite material for vehicle hulls and a hull molding process comprising a gel coat, a skin coat, a bulk fiberglass layer and adhesive applied to a top mating surface and a bottom mating surface within a top mold and a bottom mold, wherein the adhesive forms a connector. The two molds are placed

A composite material for vehicle hulls and a hull molding process comprising a gel coat, a skin coat, a bulk fiberglass layer and adhesive applied to a top mating surface and a bottom mating surface within a top mold and a bottom mold, wherein the adhesive forms a connector. The two molds are placed together, and after the adhesive sets, foam is introduced into at least one cavity formed when the molds are brought together. The molds remain closed while the foam is introduced. ng step.18. The method of claim 14, wherein the moving step includes passing the substrate through the band a plurality of times.19. The method of claim 16 wherein the moving step includes passing the substrate through the gas-liquid interface into the upper region of the chamber.20. The method of claim 19, including passing the substrate through the gas-liquid interface a plurality of times.21. The method of claim 19 further including the step of directing rinse water onto a portion of the substrate within the upper region of the chamber.22. The method of claim 14 wherein the megasonic energy is propagated in a direction normal to the substrate surface.23. The method of claim 14 wherein the megasonic energy is propagated at an angle that is less than normal to the substrate surface.24. The method of claim 1 wherein step (b) includes exposing the substrate to a cleaning fluid in the chamber.25. The method of claim 24, further including directing megasonic energy into the cleaning fluid, forming a band of megasonic energy propagating towards a surface of the substrate, and wherein the method further includes moving the substrate through the band in an edgewise direction to cause substantially the entire surface of the substrate to pass through the band.26. The method of claim 25, wherein the moving step includes passing the substrate through the band a plurality of times.27. The method of claim 25 wherein the megasonic energy induces thinning of a boundary layer on the portion of the substrate passing through the band.28. The method of claim 25 wherein during step (c) a lower region of the chamber contains cleaning fluid and an upper region of the chamber contains gas, wherein the band is adjacent to a gas-liquid interface between the cleaning fluid and gas.29. The method of claim 25 wherein the substrate includes a face having a surface area, and wherein approximately 30% or less of the surface area of the face is positioned within the band during the moving step.30. The method of claim 28 wherein the moving step includes passing the substrate through the gas-liquid interface into the upper region of the chamber.31. The method of claim 30, including passing the substrate through the gas-liquid interface a plurality of times.32. The method of claim 25 wherein the megasonic energy is propagated in a direction normal to the substrate surface.33. The method of claim 25 wherein the megasonic energy is propagated at an angle that is less than normal to the substrate surface.34. The method of claim 25, further including the step of causing cleaning fluid to flow through the chamber.35. The method of claim 34, wherein the cleaning fluid flows from a bottom portion of the chamber to an upper portion of the chamber.36. The method of claim 28, wherein the megasonic energy induces microcavitation in the band, and wherein the method further includes diffusing a gas into the cleaning fluid at the gas-liquid interface to increase the rate of microcavitation in the band.37. The method of claim 25, further including inducing acoustic streaming within the cleaning fluid by imparting megasonic energy into the cleaning fluid in a region beneath the band.38. The method of claim 24 wherein the method further includes exposing the substrate to an etching fluid in the chamber.39. The method of claim 1 wherein the drying step includes removing bulk fluid from the chamber, and introducing a drying vapor into the chamber.40. The method of claim 1 wherein, during the drying step a lower region of the chamber contains rinse fluid, and wherein the drying step includes forming an atmosphere of drying vapor in an upper region in the chamber, and withdrawing the substrate from bulk fluid in a lower region of the chamber into the upper region of the chamber.41. The method of claim 40 further including directing megasonic energy into the rinse fluid, forming a band of megasonic energy propagating towards a surface of the substrate, wherein the withdrawing step