Method of and apparatus for molding glass articles
    91.
    发明授权
    Method of and apparatus for molding glass articles 失效
    玻璃制品的成型方法和装置

    公开(公告)号:US4915720A

    公开(公告)日:1990-04-10

    申请号:US249179

    申请日:1988-09-26

    IPC分类号: C03B11/00 C03B11/02 C03B11/08

    摘要: A method of and an apparatus for molding glass articles. A first pressing of glass preform within a mold is carried out at a first pressing position, when the glass preform has its viscosity within a range of from 10.sup.8 to 10.sup.9.5 poises. The mold having accommodated therein the pressed glass is transferred from the first pressing position to a second pressing position where a second pressing is carried out with respect to the pressed glass within the mold when the pressed glass has its viscosity within a range of from 10.sup.10.5 to 10.sup.12 poises.

    摘要翻译: 一种用于模制玻璃制品的方法和装置。 当玻璃预成型件的粘度在108至109.5泊的范围内时,在第一按压位置下进行模具内的玻璃预制件的第一次挤压。 容纳在其中的压制玻璃的模具从第一加压位置转移到第二加压位置,当压制玻璃的粘度在1010.5〜 1012泊。

    Method of molding optical lenses
    92.
    发明授权
    Method of molding optical lenses 失效
    光学镜片成型方法

    公开(公告)号:US4738703A

    公开(公告)日:1988-04-19

    申请号:US865590

    申请日:1986-05-21

    IPC分类号: C03B23/00 C03B11/00 C03B11/08

    摘要: Optical lenses high in configurational accuracy with smooth surfaces are press molded in a carefully finished, polished and properly dimensioned mold preferably in a non-oxidizing atmosphere. The molding operation includes placing a quantity of glass having an internal viscosity of at least about 10.sup.6 poises in such a mold while maintaining the mold at a temperature at least equal to the glass transition temperature and thereafter passing the glass into a lens of predetermined configuration at a pressure of at least 100 Kg/cm.sup.2. Performing procedures are also disclosed.

    摘要翻译: 具有光滑表面的配置精度高的光学透镜优选在非氧化性气氛中以精心制作,抛光和适当尺寸的模具进行压制成型。 模制操作包括将一定量的具有至少约106泊的内部粘度的玻璃放置在这种模具中,同时将模具保持在至少等于玻璃化转变温度的温度,然后将玻璃进入预定构型的透镜 至少100Kg / cm 2的压力。 还公开了执行程序。

    Process to mold precision glass articles
    93.
    发明授权
    Process to mold precision glass articles 失效
    精密玻璃制品的制造工艺

    公开(公告)号:US4734118A

    公开(公告)日:1988-03-29

    申请号:US850180

    申请日:1986-04-10

    摘要: The present invention is directed to a four-step process for molding glass articles of high precision and excellent surface figure. A glass preform having an overall geometry closely approximating that of the desired final product is placed into a mold, the mold and preform are brought to a temperature at which the glass exhibits a viscosity between 10.sup.8 -10.sup.12 poises, a load is applied to shape the glass into conformity with the mold, and thereafter the glass shape is removed from the mold at a temperature above the transformation range of the glass and annealed.

    摘要翻译: 本发明涉及一种用于成型高精度和优异表面形状的玻璃制品的四步法。 将具有与所需最终产品的几何形状近似的总体几何形状的玻璃预成型件放入模具中,将模具和预制件置于玻璃表现出108-1012泊之间的粘度的温度,施加负载以形成 玻璃与模具一致,然后在高于玻璃的转变范围的温度下从模具中除去玻璃形状并进行退火。

    Method and device for the high-precision manufacture of glass articles,
in particular lenses
    95.
    发明授权
    Method and device for the high-precision manufacture of glass articles, in particular lenses 失效
    用于玻璃制品,特别是透镜的高精度制造的方法和装置

    公开(公告)号:US4398935A

    公开(公告)日:1983-08-16

    申请号:US344686

    申请日:1982-02-01

    CPC分类号: C03B11/08 C03B11/02

    摘要: A method of and a device are provided for the high-precision manufacture of glass lenses where a roughly metered volume of softened glass is transferred in a product holder from a furnace to a position between two moulds, the moulds being subsequently moved towards one another and the excess glass being pressed from between the moulds. The moulds and the product holder are moved at such a mutual speed that both moulds simultaneously contact the article, and the movement of the moulds is terminated when they reach a given position with respect to one another.

    摘要翻译: 提供了一种用于高精度制造玻璃透镜的方法和装置,其中将大致计量体积的软化玻璃从产品保持器从炉转移到两个模具之间的位置,模具随后朝向彼此移动, 多余的玻璃从模具之间被挤压。 模具和产品保持器以相互的速度移动,使得两个模具同时接触物品,并且当模具相对于彼此达到给定位置时,模具的移动终止。

    Precision molding of shaped bodies such as retro-reflectors
    96.
    发明授权
    Precision molding of shaped bodies such as retro-reflectors 失效
    成型体如反射镜的精密成型

    公开(公告)号:US4012215A

    公开(公告)日:1977-03-15

    申请号:US603491

    申请日:1975-08-11

    摘要: A process of forming molded bodies is provided in which precisely formed surfaces thereof have a precise interval therebetween. Such bodies are formed in a mold in which a first set of forming dies engage an interposed plastic mass of glass or the like, whereafter at least one auxiliary forming die enters the mold to engage and form the yet plastic mass. The first set of forming dies define critical surfaces and have a fixed interval therebetween following engagement with the plastic mass. The auxiliary die defines a non-critical surface on the body to be formed in the mold and enters the mold a distance determined by the mass of the plastic body.In a modified process of manufacture, the mold has an offset portion and is movable relative to the first forming dies whereby the mold cavity in which the plastic mass is disposed is reduced in volume and the desired body is formed having critical surfaces formed by the first forming dies.

    摘要翻译: 提供了一种形成成型体的方法,其中精确形成的表面之间具有精确的间隔。 这样的主体形成在第一组成形模具中与玻璃等插入的塑料块接合的模具中,然后至少一个辅助成形模具进入模具以接合和形成塑料块。 第一组成型模具定义临界表面,并且在与塑料块接合之后具有固定间隔。 辅助模具在模具中形成待形成的非临界表面,并且将塑料体质量确定的距离进入模具。

    Method and apparatus for transfer molding glass lenses
    97.
    发明授权
    Method and apparatus for transfer molding glass lenses 失效
    用于透射玻璃透镜的方法和装置

    公开(公告)号:US3844755A

    公开(公告)日:1974-10-29

    申请号:US30725472

    申请日:1972-11-16

    申请人: EASTMAN KODAK CO

    摘要: A method and apparatus for molding of glass into finished optical elements wherein optical glass is placed in a transfer chamber formed of a glasslike carbon material and is subjected to heat and pressure. The softened glass is transferred through a sprue into a mold cavity formed of the same glasslike carbon material. The walls defining the mold cavity and the transfer chamber have high surface quality and high surface accuracy, and the mold cavity is configured to produce optical elements of predetermined shapes.

    摘要翻译: 一种用于将玻璃成型为成品光学元件的方法和装置,其中将光学玻璃放置在由玻璃状碳材料形成的传送室中并经受热和压力。 软化的玻璃通过浇口转移到由相同的玻璃状碳材料形成的模腔中。 限定模腔和传送室的壁具有高表面质量和高表面精度,并且模腔被配置为产生预定形状的光学元件。