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    • 9. 发明公开
    • Heating vessel lid construction
    • Deckelkonstruktion einesSchmelzbehälters。
    • EP0297406A1
    • 1989-01-04
    • EP88109881.8
    • 1988-06-22
    • PPG INDUSTRIES, INC.
    • Kunkle, Gerald ErasmusPecoraro, George AnthonyDemarest, Henry Martin, jr.Hughes, Gary Noel
    • C03B5/16F27B14/12F27D1/12
    • C03B3/02C03B5/42
    • A lid (28) of a glass batch melting vessel is subjected to corrosive and thermal degra­dation. The lid (28) is cooled and the temperature of the exposed inner surface of the lid is controlled such that particulate and molten materials entrained in exhaust gas circulating within the vessel (10) adhere to the lid (28) surface forming a pro­tective, insulating coating (54) that prolongs the service life of the lid. In addition, a multilayered, cooled metal lid (128) for a heating vessel (10) has a main support plate (148) fabricated from low carbon steel and a chromium steel overlay (150) that is exposed to the hot interior portions of the vessel (10). The chromium steel overlay (150) has a chromium content by weight of approximately 10 to 25 percent.
    • 玻璃批量熔化容器的盖(28)经受腐蚀和热降解。 盖(28)被冷却,并且控制盖的暴露的内表面的温度,使得夹带在容器(10)内循环的废气中的颗粒和熔融材料粘附到盖(28)表面上,形成保护绝缘 涂层(54),延长盖的使用寿命。 此外,用于加热容器(10)的多层冷却金属盖(128)具有由低碳钢制成的主支撑板(148)和暴露于所述的热内部的铬钢覆层(150) 容器(10)。 铬钢覆层(150)的铬含量约为10〜25%。