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热词
    • 80. 发明授权
    • Micro fabrication molding process
    • 微加工成型工艺
    • US4381963A
    • 1983-05-03
    • US173533
    • 1980-07-30
    • Irving S. GoldsteinFranklin D. KalkHarry W. Deckman
    • Irving S. GoldsteinFranklin D. KalkHarry W. Deckman
    • B29C33/38H05H1/22B29C1/14
    • G21B1/19B29C33/3878Y02E30/16Y10T29/49893
    • Identical half-section shells of microscopic size, such as hemispherical shells from which spherical laser fusion targets can be made are capable of mass production by micro fabrication molding techniques. A body (preferably a hollow glass microsphere which is called a glass microballoon) provides a pattern for the hemispherical shells, and is used to produce an original mold section. One or more master molds are formed from this original mold section by replication. Many identical replica molds are made by casting soluble material onto the master mold and removing them therefrom. The replica molds are coated with one or more layers which will form the hemispherical shell wall. The material coating the flat background around the hemispherical cavity is referred to as the flange and is removed to form free standing shells. In order to remove the flange material, the coated replica molds are overcoated with a soluble material which is etched away to the level of the flange. The remaining soluble material acts as a mask for the shell material when the flange material is etched away. The replica mold and overcoating body remain as a protective mask and are dissolved away to release the identical shell sections. These sections can be assembled to provide closed shells. Overlapping lips can be formed during flange removal so as to facilitate the assembly of the sections into the closed shells.
    • 可以通过微型制造成型技术大量生产具有微小尺寸的相同的半截面壳体,例如可以制造球形激光熔化靶的半球形壳体。 身体(优选为称为玻璃微球的中空玻璃微球)为半球形壳提供图案,并用于制造原始模具部分。 通过复制从该原始模具部分形成一个或多个主模具。 许多相同的复制模具通过将可溶性材料浇铸到母模上并将其从中除去而制成。 复制模具涂覆有一层或多层,其将形成半球形壳壁。 将半球形腔周围的平坦背景涂覆的材料称为凸缘,并被移除以形成独立的壳体。 为了去除凸缘材料,涂覆的复制模具用可蚀刻的材料进行涂覆,该可溶材料被蚀刻到凸缘的水平面上。 当法兰材料被蚀刻掉时,剩余的可溶性材料用作壳材料的掩模。 复制模具和外涂体保留作为保护面罩,并溶解掉以释放相同的外壳部分。 这些部分可以组装以提供封闭的壳。 可以在法兰移除期间形成重叠的唇缘,以便于将部件组装到封闭的壳体中。