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    • 31. 发明授权
    • Method of manufacturing sheet and float glass at high production rates
    • 在高产率下制造板材和浮法玻璃的方法
    • US3833388A
    • 1974-09-03
    • US34751073
    • 1973-04-03
    • PPG INDUSTRIES INC
    • OHLBERG SJONES J
    • C03B18/02C03B20060101C03B15/08C03C20060101C03C1/00C03C1/02C03C3/04C03C3/087C09K8/62C09K8/88C03B1/00
    • C03B15/08C03C1/00C03C3/087Y02P40/57Y10T428/315
    • A method of increasing the rate of production (throughput) of flat glass, particularly sheet glass manufactured by the Pittsburgh -Process, and float glass manufactured by the Float Process is disclosed. -The method involves altering the standard commercial sheet glass formulations -of the Pittsburgh Process and of the Float Process to give a lower -SiO2 and CaO containing glass which has a higher Na2O content. The new -glass composition melts and fines at lower temperatures and is a surprisingly -more soluble composition for the batch sand which makes the glass composition -faster melting. The new glass requires less salt cake for melting and -fining than conventional sheet and float glass and also retains a higher -percentage of SO3 during melting and refining in the glass than either -conventional sheet and float glass. These factors significantly reduce -the pollution hazards associated with gaseous and particulate sulfur emissions. Further, since the glass is faster melting, it helps reduce -particulate emissions due to dusting. Further, the new glass has a lower -liquidus temperature, a wider working range, can be attenuated over a wider -temperature range, and is easier to cut. Flat glass articles of the -new composition can be both thermally and chemically tempered at faster -rates. These improved properties all contribute to high throughput conditions. Although the new glass can be made at higher production -rates, commercially desirable properties, such as chemical durability, -are as good as commercially available sheet and float glass.
    • 公开了一种提高平板玻璃,特别是匹兹堡工艺制造的平板玻璃的生产率(生产量)的方法和由浮法生产的浮法玻璃。 }该方法涉及改变匹兹堡工艺和浮法工艺的标准市售玻璃制品,以得到较低Na 2 O含量的较低的含SiO2和CaO的玻璃。 新的}玻璃组合物在较低的温度下熔化和细粉,并且对于批料砂而言是令人惊奇的}更可溶的组合物,这使得玻璃组合物}更快地熔化。 与常规的片材和浮法玻璃相比,新玻璃需要比传统的片材和浮法玻璃更少的熔融和/或澄清的盐饼,并且在玻璃熔化和精炼过程中还保留了更高的比例的SO 3。 这些因素显着降低了与气体和颗粒物硫}排放相关的污染危害。 此外,由于玻璃熔化较快,因此有助于减少由于粉尘引起的颗粒物排放。 此外,新玻璃具有较低的液相线温度,更宽的工作范围可以在更宽的温度范围内衰减,并且更容易切割。 新的组合物的平板玻璃制品可以以更快的速率进行热和化学回火。 这些改进的性能都有助于高通量}条件。 虽然新玻璃可以以更高的生产率制造,但商业上期望的性能,例如化学耐久性,}与市售的片材和浮法玻璃一样好。
    • 32. 发明授权
    • Method of producing blast furnace slag products
    • 生产烤烟产品的方法
    • US3822799A
    • 1974-07-09
    • US21600072
    • 1972-01-07
    • CALUMITE CO
    • EVANS R
    • C04B5/00C03B1/00C03C1/00C03C6/10C21B3/08B65G3/02B65G65/28C03C13/00
    • C21B3/08C03C1/002
    • A blast furnace slag product adapted for use in the manufacture of glass is produced by depositing successive loads of slag each having a composition within a predetermined range, in spaced locations within a storage area so as to produce a layer composed of numerous individual loads each differing more or less in composition within said range. Several such layers are arranged one upon another after which the material required for use is removed from the storage area in a direction transverse to said layers and the material thus removed is ground and subjected to magnetic separation whreby a product of highly uniform composition is obtained.
    • 适用于制造玻璃的高炉矿渣产品是通过在存储区域内的间隔位置上沉积连续的炉渣,这些炉渣各自具有在预定范围内的组成,以产生由各种不同的各种负载组成的层 或多或少在所述范围内的组成。 几个这样的层被一个接一个地布置,之后使所需的材料在横向于所述层的方向上从存储区域中移除,并且将这样去除的材料研磨,并获得高度均匀组成的产品的磁分离。