Glass for sealing to molybdenum metal
    1.
    发明授权
    Glass for sealing to molybdenum metal 失效
    用于密封钼金属的玻璃

    公开(公告)号:US4255198A

    公开(公告)日:1981-03-10

    申请号:US92698

    申请日:1979-11-09

    CPC分类号: C03C3/085 C03C3/087

    摘要: This invention is directed to the production of glasses having particular utility as envelopes for tungsten-halogen incandescent lamps because of their thermal endurance and capability of use at the high temperatures at which such lamps operate, coupled with their facility for being sealed to molybdenum. The glasses manifest a strain point in excess of 730.degree. C., a liquidus temperature less than 1200.degree. C., a viscosity at the liquidus of at least 40,000 poises, axial compression at room temperature not exceeding 350 PPM and axial tension or compression at 500.degree. C. not exceeding 150 PPM when sealed to molybdenum leads, and a coefficient of thermal expansion (0.degree.-300.degree. C.) less than 48.times.10.sup.-7 /.degree. C. Such glasses consist essentially, by weight on the oxide basis, of 61-65% SiO.sub.2, 14-17% Al.sub.2 O.sub.3, 8-15% CaO, and 6-9% SrO.

    摘要翻译: 本发明涉及由于其耐热性和在这些灯操作的高温下使用的能力以及与钼的密封的设备相结合而制造的具有特殊用途的玻璃作为钨卤素白炽灯的包络。 玻璃的应变点超过730℃,液相线温度低于1200℃,液相线粘度至少为40,000泊,室温轴向压缩不超过350PPM,轴向张力或压缩 当密封到钼引线上时,500℃不超过150PPM,并且热膨胀系数(0-300℃)小于48×10 -7 /℃。这种玻璃基本上以氧化物的重量计, 的61-65%SiO 2,14-17%的Al 2 O 3,8-15%的CaO和6-9%的SrO。

    Metal shaping die assembly
    5.
    发明授权
    Metal shaping die assembly 失效
    金属成型模具总成

    公开(公告)号:US4270380A

    公开(公告)日:1981-06-02

    申请号:US42581

    申请日:1979-05-25

    IPC分类号: B21C3/02 B21C25/02

    摘要: A die assembly comprises a steel casing shrink-fitted onto and holding a ceramic die nib for extruding, drawing, ironing and the like of ferrous and nonferrous metal stock, especially in hot workable condition. The assembly includes an interlayer between the nib and casing to accommodate imperfect dimensional mating of adjacent shrink-fitted surfaces of the nib and casing. The interlayer is composed of all-crystalline ceramic material having a heating liquidus temperature within the range of 500.degree.-570.degree. C. Rigidity of solidified interlayer maintains uniform shrink-fitted compression on nib during usage of the assembly. Nib and preferred lead-zinc-borate devitrified glass interlayer are easily, jointly removable from casing and leave casing clean for reuse without affecting its case-hardening properties.

    摘要翻译: 一种模具组件包括一个钢壳体,该钢壳体被收缩配合到并保持有色金属和有色金属材料的特别是在可热加工的条件下的用于挤出,拉伸和熨烫等的陶瓷模具。 组件包括笔尖和外壳之间的中间层,以适应笔尖和外壳的相邻收缩配合表面的不完美的尺寸配合。 中间层由具有加热液相线温度在500〜-570℃范围内的全结晶陶瓷材料组成。凝固层的刚度在组装使用期间在笔尖上保持均匀的收缩配合压缩。 铁笔和优选的铅 - 锌 - 硼酸盐失透玻璃中间层容易地从壳体中脱离,并使壳体清洁以重新使用而不影响其表面硬化性质。

    Cathode ray tube panel
    6.
    发明授权
    Cathode ray tube panel 失效
    阴极射线管面板

    公开(公告)号:US4179638A

    公开(公告)日:1979-12-18

    申请号:US920150

    申请日:1978-06-29

    CPC分类号: H01J29/863

    摘要: There is disclosed an improved glass panel for a cathode ray tube adapted to use in color television reception. The panel glass undergoes a minimum amount of compaction on reheating, has a strain point greater than 470.degree. C., a liquidus below 900.degree. C., and a composition selected from a family within the SiO.sub.2 -Al.sub.2 O.sub.3 -MgO-CaO-SrO-BaO-PbO-Na.sub.2 O-K.sub.2 O field. Special additives in minor amounts include TiO.sub.2, CeO.sub.2, Sb.sub.2 O.sub.3, As.sub.2 O.sub.3, F, and oxide colorants.

    摘要翻译: 公开了一种改进的适用于彩色电视接收的阴极射线管的玻璃面板。 面板玻璃在再加热时经受最小量的压实,应变点大于470℃,液相线低于900℃,选自SiO 2 -Al 2 O 3 -MgO-CaO-SrO- BaO-PbO-Na2O-K2O场。 少量的特殊添加剂包括TiO 2,CeO 2,Sb 2 O 3,As 2 O 3,F和氧化物着色剂。

    Glasses exhibiting low thermal coefficients of elasticity
    8.
    发明授权
    Glasses exhibiting low thermal coefficients of elasticity 失效
    玻璃具有低热弹性系数

    公开(公告)号:US4855260A

    公开(公告)日:1989-08-08

    申请号:US216850

    申请日:1988-07-08

    IPC分类号: C03C3/091 C03C4/00 G01G3/16

    CPC分类号: G01G3/16 C03C3/091

    摘要: Glasses exhibiting low thermal coefficients of elastic modulus, good glass stability, low thermal expansion, and good chemical durability are provided, a first glass type including glasses consisting essentially, in weight percent on the oxide basis, of about 60-64% SiO.sub.2, 14-18% B.sub.2 O.sub.3, 8.5-10% Al.sub.2 O.sub.3, 4-7% Na.sub.2 O, and 2-12% BaO, and a second group comprising alkali silicate glasses consisting essentially, in weight percent on the oxide basis, of about 51-55% SiO.sub.2, 10-13% K.sub.2 O, 5-15% ZnO, 5-15 BaO, and 10-20% PbO.

    Very low expansion sealing frits
    9.
    发明授权
    Very low expansion sealing frits 失效
    极低膨胀密封玻璃料

    公开(公告)号:US4315991A

    公开(公告)日:1982-02-16

    申请号:US218358

    申请日:1980-12-19

    CPC分类号: C03C8/24 C03C10/0045

    摘要: This invention is drawn to thermally devitrifiable sealing glasses capable of forming sound seals with glasses, glass-ceramics, and ceramics having coefficients of thermal expansion (0.degree.-300.degree. C.) between about 0.5-5.times.10.sup.-7 /.degree. C. In finely fritted form, the glasses can be sintered and crystallized in situ at about 900.degree.-1000.degree. C. The glasses consist essentially, expressed in weight percent on the oxide basis, of about 1-2% Li.sub.2 O, 0.7-1.5% MgO, 9-13% ZnO, 19-23% Al.sub.2 O.sub.3, 62-68% SiO.sub.2, and at least 1% K.sub.2 O+Rb.sub.2 O+Cs.sub.2 O in the indicated proportions of 0-3% K.sub.2 O, 0-4% Rb.sub.2 O, and 0-6% Cs.sub.2 O.

    摘要翻译: 本发明涉及能够在约0.5-5×10 -7 /℃之间的具有热膨胀系数(0〜-300℃)的眼镜,玻璃陶瓷和陶瓷形成声音密封的热失透密封玻璃。 玻璃可以在约900°-1000℃下原位烧结和结晶。玻璃基本上以氧化物的重量百分比表示,约1-2%的Li 2 O,0.7-1.5%的MgO,9 -13%ZnO,19-23%Al2O3,62-68%SiO2和至少1%K2O + Rb2O + Cs2O,其含量为0-3%K2O,0-4%Rb2O和0-6%Cs2O 。