| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method for a clock dial plate with a little warp. SOLUTION: Using a hand mounting hole 3 arranged in the center of a dial plate base board 1, to which glass powder 4 is applied, and a through-hole 12 in a sintered jig plate 11, the dial plate base board 1 is screwed to the sintered jig plate 11 with high rigidity by means of a bolt 14 and a nut 15. Then, the dial plate base board 1, to which the glass powder 4 is applied, is heated and burnt for forming a glass melted layer 4a, and consequently, a warp due to thermal deformation of the clock dial plate 20 is reduced. COPYRIGHT: (C)2003,JPO
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