Procédés et appareil pour fabriquer du verre

    公开(公告)号:FR3153091A1

    公开(公告)日:2025-03-21

    申请号:FR2309703

    申请日:2023-09-14

    Applicant: CORNING INC

    Abstract: Un appareil de fabrication à base de verre comprend un appareil de distribution transportant du verre fondu dans une direction de déplacement (107). L’appareil de fabrication à base de verre comprend un premier rouleau de formage (701) comprenant une poche texturée qui reçoit le verre fondu et communique une forme définie correspondante au verre fondu (103). La poche texturée comprend une première extrémité de poche, une deuxième extrémité de poche et une région de poche centrale s’étendant de manière circonférentielle entre la première extrémité de poche et la deuxième extrémité de poche. L’appareil de fabrication à base de verre comprend un moule (113) positionné pour recevoir le verre fondu comprenant la forme définie à l’intérieur d’une cavité de moule (201) du moule. Les procédés pour fabriquer du verre sont également prévus. Figure 7

    Continuously casting rod with cross-sectional compsn. gradient

    公开(公告)号:FR2733224A1

    公开(公告)日:1996-10-25

    申请号:FR9504646

    申请日:1995-04-19

    Applicant: CORNING INC

    Abstract: A rod of material having a cross-sectional compsn. gradient is obtd. by simultaneously passing a core stream of one compsn. and a concentric annular sheathing stream of a different compsn. into a casting tube. Appts. includes at least two reservoirs having concentric discharge orifices through which the materials flow by gravity into a concentric casting tube. A heating system controls the temp. profile of the material as it flows through the tube and provision is made for controlling the rate of flow. From its outlet the materials pass in laminar flow to a concentric mould of greater cross-section. Pref. the compsn. gradient is controlled by adjusting the flow rates and temp. at a selected interface position between core and sheath.

    Device for casting large dial glass rods with high quality surface finish

    公开(公告)号:FR2733225A1

    公开(公告)日:1996-10-25

    申请号:FR9504647

    申请日:1995-04-19

    Applicant: CORNING INC

    Abstract: Appts. comprises a mould having a porous cylindrical internal wall through which gas is injected to create a surface film separating the glass from the mould. Also claimed are glass rods formed by casting a glassy material in a molten state in a mould; and a method of shaping glassy material into rods in the mould, the material not being in direct contact with the mould wall. Pref. the mould wall is formed from graphite, stainless steel, nickel alloy, bronze, or ceramic. Casting may proceed continuously in an open-bottomed mould below which are guide rolls that control the discharge rate of the casting.

    Process and device for producing sheet of vitreous material

    公开(公告)号:FR2741335A1

    公开(公告)日:1997-05-23

    申请号:FR9513877

    申请日:1995-11-22

    Applicant: CORNING INC

    Abstract: Producing a sheet from a vitreous material by pressing between contra-rotating rolls to reduce at least locally the thickness of the sheet (F) to a predetermined thickness. The thickness of the sheet is reduced progressively by a sequence of successive passes through the contra-rotating rolls (1i, 2i, 3i) whilst maintaining the average viscosity of the sheet between 5.104 and 109 poise, at least before the last pass between the rolls. The sheet is reduced from its initial thickness (e) in a succession of small steps (e1 , e2 , e3 ) in order to overcome problems associated with differential shrinkage. Also claimed are (I) a device consisting of a number of pairs of contra-rotating rolls (1i, 2i, 3i), a set of conveyors (4i ) and heating systems (5I) between the pairs of rolls, and, (II) a control plate for a flat screen for displaying cathode ray images, consisting of a network of electrodes carried by a glass sheet.

    CRACK-RESISTANT GLASS-CERAMIC ARTICLES AND METHODS FOR MAKING THE SAME
    8.
    发明申请
    CRACK-RESISTANT GLASS-CERAMIC ARTICLES AND METHODS FOR MAKING THE SAME 审中-公开
    防腐玻璃陶瓷制品及其制造方法

    公开(公告)号:WO2015054456A2

    公开(公告)日:2015-04-16

    申请号:PCT/US2014059833

    申请日:2014-10-09

    Applicant: CORNING INC

    Abstract: Glass-ceramics exhibiting a Vickers indentation crack initiation threshold of at least 15 kgf are disclosed. These glass-ceramics may be ion exchangeable or ion exchanged. The glass-ceramics include a crystalline and amorphous phases generated by subjecting a thin precursor glass article to ceramming cycle having an average cooling rate in the range from about 10 °C/minute to about 25 °C/minute. In one or more embodiments, the crystalline phase may comprise at least 20 wt% of the glass-ceramics. The glass-ceramics may include β-spodumene ss as the predominant crystalline phase and may exhibit an opacity ≥ about 85% over the wavelength range of 400-700nm for an about 0.8mm thickness and colors an observer angle of 10° and a CIE illuminant F02 determined with specular reflectance included of a* between -3 and +3, b* between -6 and +6, and L* between 88 and 97.

    Abstract translation: 公开了具有至少15kgf的维氏体压痕裂纹起始阈值的玻璃陶瓷。 这些玻璃陶瓷可以是离子交换的或离子交换的。 玻璃陶瓷包括通过使薄的前体玻璃制品经受平均冷却速度在约10℃/分钟至约25℃/分钟范围内的陶瓷循环而产生的结晶和非晶相。 在一个或多个实施方案中,结晶相可以包含至少20wt%的玻璃陶瓷。 玻璃陶瓷可以包括作为主要结晶相的β-锂辉石β,并且在400-700nm的波长范围内可以表现出大约85%的不透明度,约0.8mm厚度,并且观察角度为10°,CIE光源 F02用包括-3和+3之间的* *,-6和+6之间的b *,以及88和97之间的L *的镜面反射率确定。

    METHODS AND APPARATUSES FOR PRODUCING LAMINATED GLASS SHEETS
    9.
    发明申请
    METHODS AND APPARATUSES FOR PRODUCING LAMINATED GLASS SHEETS 审中-公开
    生产层压玻璃板的方法和装置

    公开(公告)号:WO2014009766A3

    公开(公告)日:2014-03-13

    申请号:PCT/IB2012001715

    申请日:2012-07-13

    Abstract: According to one embodiment, a method for forming a laminated glass sheet includes forming a multi-layer glass melt (300) from a molten core glass (106) and at least one molten cladding glass (126). The multi-layer glass melt (300) has a width Wm, a melt thickness Tm and a core to cladding thickness ratio TC:TCl. The multi-layer glass melt (300) is directed onto the surface of a molten metal bath (162) contained in a float tank (160). The width Wm of the multi-layer glass melt (300) is less than the width Wf of the float tank (160) prior to the multi-layer glass melt (300) entering the float tank (160). The multilayer glass melt (300) flows over the surface of the molten metal bath (162) such that the width Wm of the multi-layer glass melt (300) increases, the melt thickness Tm decreases, and the core to cladding thickness ratio TC:TCl remains constant as the multi-layer glass melt (300) solidifies into a laminated glass sheet. The invention also relates to the associated apparatus.

    Abstract translation: 根据一个实施例,一种用于形成夹层玻璃板的方法包括从熔融芯玻璃(106)和至少一个熔融包层玻璃(126)形成多层玻璃熔体(300)。 多层玻璃熔体(300)具有宽度Wm,熔体厚度Tm和芯与包层厚度比TC:TCl。 多层玻璃熔体(300)被引导到包含在浮子罐(160)中的熔融金属浴(162)的表面上。 多层玻璃熔体(300)的宽度Wm小于多层玻璃熔体(300)进入浮子槽(160)之前的浮子槽(160)的宽度Wf。 多层玻璃熔体(300)流过熔融金属浴(162)的表面,使得多层玻璃熔体(300)的宽度Wm增加,熔体厚度Tm降低,芯与包层厚度比TC :多层玻璃熔体(300)凝固成夹层玻璃板时,TCl保持恒定。 本发明还涉及相关联的装置。

    FUSION DRAW APPARATUS AND METHODS
    10.
    发明申请
    FUSION DRAW APPARATUS AND METHODS 审中-公开
    熔融拉丝装置和方法

    公开(公告)号:WO2012158232A2

    公开(公告)日:2012-11-22

    申请号:PCT/US2012026512

    申请日:2012-02-24

    CPC classification number: C03B17/068 C03B17/064 C03B21/02 C03B33/0215

    Abstract: A fusion draw apparatus includes a pair of engagement rollers. At least one of the pair of engagement rollers includes a circumferential knife edge configured to cooperate with the other of the pair of engagement rollers to thin the edge portion or sever the edge portion from a central portion of the glass ribbon within the viscous zone of the glass ribbon. In further examples, fusion draw methods include the step of thinning the edge portion or severing the edge portion from the central portion of the glass ribbon within the viscous zone.

    Abstract translation: 一种熔接装置包括一对啮合辊。 一对接合辊中的至少一个包括圆周刀边缘,其被配置为与一对接合辊中的另一个配合,以使边缘部分变薄或者将边缘部分从玻璃带的中心部分切除在玻璃带的粘性区域内 玻璃丝带。 在另外的实施例中,熔融拉伸法包括使边缘部分变薄或从粘性区域内的玻璃带的中心部分切断边缘部分的步骤。

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