fore hearthとは 意味・読み方・使い方

The frit prepared by compounding 5 to 45 parts cerium oxide and 0.1 to 10 parts coke with 100 parts silica sand and solidifying the mixture after melting is added to base glass in a fore hearth.例文帳に追加

硅砂１００部に対し酸化セリウム５〜４５部、コークス０．１〜１０部を配合し、溶融後固化させたフリットを、フォアハースにおいてベースガラスに添加する。 - 特許庁

Because the coloring material is previously melted in the exclusive melting furnace, the generation of bubbles is decreased and the coloring material enables to be incorporated in an optional position of the fore hearth or the spout and the lowering of the temp. at the time of the incorporation is prevented.例文帳に追加

専用溶解炉で予め溶融されるので泡の発生が少なく、着色材をフォアハース、スパウトの任意の位置で混入でき、混入の際の温度低下がない。 - 特許庁