GLASS CERAMICS HAVING LOW RHODIUM LEVELS
    2.
    发明申请
    GLASS CERAMICS HAVING LOW RHODIUM LEVELS 审中-公开
    具有低铑水平的玻璃陶瓷

    公开(公告)号:US20160311718A1

    公开(公告)日:2016-10-27

    申请号:US15200571

    申请日:2016-07-01

    Abstract: A glass ceramic precursor glass and a glass ceramic having low levels of rhodium and a method of controlling the amount of rhodium in such glasses and glass ceramics. The precursor glass and glass ceramic contain from about 1 ppm to about 10 ppm and, in certain embodiments, from about 1 ppm to about 6 ppm rhodium. The method of controlling of reducing rhodium dissolution from a rhodium-containing material such as, for example, an alloy into a glass melt comprises controlling and/or lowering the partial pressure of oxygen at the rhodium-containing vessel/glass interface by imposing a high humidity condition around the external (non-glass-contact) surface of the rhodium-containing material. The lower concentration of rhodium minimizes its coloring effect on the white color of the glass ceramic.

    Abstract translation: 玻璃陶瓷前体玻璃和具有低水平铑的玻璃陶瓷和控制这种玻璃和玻璃陶瓷中铑的量的方法。 前体玻璃和玻璃陶瓷含有约1ppm至约10ppm,在某些实施方案中含有约1ppm至约6ppm的铑。 控制从含铑材料(例如合金)将铑溶解还原成玻璃熔体的方法包括通过施加高的温度来控制和/或降低含铑容器/玻璃界面处的氧的分压 含铑材料的外部(非玻璃接触)表面附近的湿度条件。 较低浓度的铑使其对玻璃陶瓷的白色的着色效果最小化。

    Multi-piece layered honeycomb extrusion dies and methods of making same

    公开(公告)号:US12049022B2

    公开(公告)日:2024-07-30

    申请号:US18243929

    申请日:2023-09-08

    CPC classification number: B28B3/269

    Abstract: Extrusion dies and methods of manufacturing extrusions dies, the extrusion die including a first plate and a second plate. The first plate has first upstream and downstream surfaces. A first material of the first plate has a first elastic modulus. The first plate includes pins formed between a plurality of slots. The pins and slots define a discharge face for the extrusion die at the first downstream surface of the first plate. The second plate has second upstream and downstream surfaces. The second plate is joined at the second downstream surface to the first upstream surface of the first plate. A second material of the second plate has a second elastic modulus. The second elastic modulus is greater than the first elastic modulus. A plurality of feed holes extend from the second upstream surface of the second plate through the extrusion die into communication with the slots.

    MULTI-PIECE LAYERED HONEYCOMB EXTRUSION DIES AND METHODS OF MAKING SAME

    公开(公告)号:US20230415374A1

    公开(公告)日:2023-12-28

    申请号:US18243929

    申请日:2023-09-08

    CPC classification number: B28B3/269

    Abstract: Extrusion dies and methods of manufacturing extrusions dies, the extrusion die including a first plate and a second plate. The first plate has first upstream and downstream surfaces. A first material of the first plate has a first elastic modulus. The first plate includes pins formed between a plurality of slots. The pins and slots define a discharge face for the extrusion die at the first downstream surface of the first plate. The second plate has second upstream and downstream surfaces. The second plate is joined at the second downstream surface to the first upstream surface of the first plate. A second material of the second plate has a second elastic modulus. The second elastic modulus is greater than the first elastic modulus. A plurality of feed holes extend from the second upstream surface of the second plate through the extrusion die into communication with the slots.

    Multi-piece layered honeycomb extrusion dies and methods of making same

    公开(公告)号:US11780115B2

    公开(公告)日:2023-10-10

    申请号:US17103524

    申请日:2020-11-24

    CPC classification number: B28B3/269

    Abstract: Extrusion dies and methods of manufacturing extrusions dies, the extrusion die including a first plate and a second plate. The first plate has first upstream and downstream surfaces. A first material of the first plate has a first elastic modulus. The first plate includes pins formed between a plurality of slots. The pins and slots define a discharge face for the extrusion die at the first downstream surface of the first plate. The second plate has second upstream and downstream surfaces. The second plate is joined at the second downstream surface to the first upstream surface of the first plate. A second material of the second plate has a second elastic modulus. The second elastic modulus is greater than the first elastic modulus. A plurality of feed holes extend from the second upstream surface of the second plate through the extrusion die into communication with the slots.

    MULTI-PIECE LAYERED HONEYCOMB EXTRUSION DIES AND METHODS OF MAKING SAME

    公开(公告)号:US20210154885A1

    公开(公告)日:2021-05-27

    申请号:US17103524

    申请日:2020-11-24

    Abstract: Extrusion dies and methods of manufacturing extrusions dies, the extrusion die including a first plate and a second plate. The first plate has first upstream and downstream surfaces. A first material of the first plate has a first elastic modulus. The first plate includes pins formed between a plurality of slots. The pins and slots define a discharge face for the extrusion die at the first downstream surface of the first plate. The second plate has second upstream and downstream surfaces. The second plate is joined at the second downstream surface to the first upstream surface of the first plate. A second material of the second plate has a second elastic modulus. The second elastic modulus is greater than the first elastic modulus. A plurality of feed holes extend from the second upstream surface of the second plate through the extrusion die into communication with the slots.

    APPARATUS AND METHOD FOR MITIGATING ELECTROCHEMICAL ATTACK OF PRECIOUS METAL COMPONENTS IN A GLASS MAKING PROCESS

    公开(公告)号:US20210387887A1

    公开(公告)日:2021-12-16

    申请号:US17279950

    申请日:2019-09-20

    Abstract: Apparatus and methods are disclosed for forming a glass article in which molten glass is heated in a refractory vessel defining a space interior to the refractory vessel. A precious metal component is exposed to the interior space. The apparatus includes first and second electrodes exposed to the interior space. A first electrical power source configured to supply a first electrical current is connected between the first and second electrodes. A second electrical power source is connected between the precious metal component and at least one of the first electrode or a first auxiliary electrode and configured to provide a second electrical current out-of-phase with the first electrical current. A third electrical power source is connected between the precious metal component and at least one of the second electrode or a second auxiliary electrode and configured to provide a third electrical current out-of-phase with the first

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