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BALANCE-SPRING FOR HOROLOGICAL MOVEMENT AND METHOD FOR MANUFACTURING SAME
BALANCE-SPRING FOR HOROLOGICAL MOVEMENT AND METHOD FOR MANUFACTURING SAME
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机译:秋季春季弹簧及其制造方法
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摘要
In particular, the present invention - niobium: balance up to 100% by weight, - titanium: 5 to 95% by weight; - trace elements selected from the group consisting of O, H, C, Fe, Ta, N, Ni, Si, Cu and Al, each of which is present in an amount from 0 to 1600 ppm by weight, all of said elements The total amount formed by 0% to 0.3% by weight of the above elements As a balance spring for balancing a watch movement, including a core made of Nb-Ti made of an alloy consisting of and the Nb-Ti core is coated with a niobium layer, and the niobium layer has a thickness of 20 nm to 10 μm.
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