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    • 31. 发明授权
    • Method for manufacturing a fluorescent lamp
    • 荧光灯制造方法
    • US06560995B2
    • 2003-05-13
    • US09731122
    • 2000-12-06
    • Toshiyoshi OgaMasaru SaitohKozo Shirai
    • Toshiyoshi OgaMasaru SaitohKozo Shirai
    • C03B2313
    • C03B33/085C03B23/0473C03B23/11C03B23/13C03B23/207H01J9/247Y02P40/57
    • A method for manufacturing a glass tube used for a fluorescent lamp having an arc tube constructed by joining a plurality of glass tubes is provided. According to this method, a straight glass tube held at both ends is rotated, and a predetermined cutting portion of the glass tube is softened by heating, and then the glass tube is moved in the heated state in the direction toward the predetermined cutting portion to form a glass accumulated portion at the area of the predetermined cutting portion. Next, the glass tube is drawn away in the direction receding from the predetermined cutting portion, and the predetermined cutting portion of the glass tube is cut into two glass tubes having self-closing end walls. In this way, the end walls of the self-closed glass tubes can be formed thicker and more uniform compared to those obtained by the conventional techniques, and the mechanical strength of the end walls also can be improved. As a result, the defective percentage of the lamps during the manufacturing process and on the market due to cracks, leakage, or damages in the end walls of the glass tubes can be reduced.
    • 提供一种用于制造具有通过连接多个玻璃管构成的具有电弧管的荧光灯的玻璃管的制造方法。 根据该方法,将保持在两端的直的玻璃管旋转,通过加热使玻璃管的规定的切断部软化,然后使玻璃管沿着朝向预定切削部的方向以加热状态移动, 在预定切割部分的区域处形成玻璃积聚部分。 接下来,将玻璃管沿着从预定切割部分退出的方向拉出,将玻璃管的预定切割部分切割成具有自闭合端壁的两个玻璃管。 以这种方式,与通过常规技术获得的那些相比,自封闭玻璃管的端壁可以形成得更厚和更均匀,并且端壁的机械强度也可以提高。 结果,可以减少在制造过程中和由于玻璃管的端壁中的裂缝,泄漏或损坏而在市场上的灯的不良百分比。