| 摘要 |
<p>PURPOSE:To obtain the titled laminate that will be less liable to be warped, by placing laminates each having a metal foil on resin-impregnated substrates and metal plates alternatively between press hot platens, and molding them by hot- pressing under a specified temperature rising condition. CONSTITUTION:A metal foil such as an aluminium foil is placed on a prescribed number of resin-impregnated substrates obtained by impregnating a substrate, for example, of glass fibers, for example, with a phenolic resin to produce a laminate, and such laminates and metal plates such as stainless steel plates are stacked alternatively between hot platens. Then they are molded by hot-pressing under such conditions that the heating rate of the laminates is 0.8-5 deg.C/min at 90-130 deg.C, with the heating rate gradual at higher temperature, and the heating rate of the laminate on the resin-impregnated substrate side is 1.5-3.5 deg.C, so that the desired laminates are produced.</p> |
