초록 ▼

A method of manufacturing a resin impregnated article includes the steps of providing a mold onto which a reinforcing material is placed, sealing the reinforcing material with an impervious sheet and regulating the pressure on the material and temperature of the material and resin by placing a fluid

A method of manufacturing a resin impregnated article includes the steps of providing a mold onto which a reinforcing material is placed, sealing the reinforcing material with an impervious sheet and regulating the pressure on the material and temperature of the material and resin by placing a fluid in contact with the impervious sheet and regulating the pressure and temperature of the fluid.

대표청구항 ▼

A method of manufacturing a resin impregnated article includes the steps of providing a mold onto which a reinforcing material is placed, sealing the reinforcing material with an impervious sheet and regulating the pressure on the material and temperature of the material and resin by placing a fluid

A method of manufacturing a resin impregnated article includes the steps of providing a mold onto which a reinforcing material is placed, sealing the reinforcing material with an impervious sheet and regulating the pressure on the material and temperature of the material and resin by placing a fluid in contact with the impervious sheet and regulating the pressure and temperature of the fluid. ting power and conventional radiative/convective heat energy to reduce the temperature differential between a surface temperature and a core temperature of the ceramic article, the improvement wherein: the ceramic article is subjected to microwave heating power from an adjustable microwave power generator in a series of separate firing segments, each firing segment including a segment target time, a starting temperature and an ending temperature, and each segment being conducted at one of constant microwave power, microwave power ramped from a low output to a higher output, and/or microwave power ramped from a high output to a lower output; the core temperature of the article is measured during each segment and the segment target time or segment microwave power are adjusted if needed to reach the ending temperature; the surface temperature of the article is measured during each segment; and the difference between the surface temperature and the core temperature of the ceramic article is reduced by adjusting the amount of conventional radiative/convective heat energy supplied during the segment needed to change the surface temperature of the, article. 9. A method in accordance with claim 8 wherein: the core temperature of the article is used to calculate a surface temperature setpoint corresponding to a surface temperature providing a temperature differential between the surface and core temperatures that is sufficiently reduced to avoid cracking or distortion of the ceramic article, and the amount of conventional heating is adjusted to control the surface temperature of the article and reach the sufficiently reduced temperature differential.