Inner mold for molding glass and its regeneration process
A molding and glass technology, which is applied in the field of mold core and regeneration of molded glass, can solve the problems of thick middle layer and adverse effects of production cost, etc., and achieve the effects of short regeneration time, excellent reproducibility and enhanced adhesion
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Embodiment 1
[0029] Please refer to FIG. 1 , which is a cross-sectional view showing the structure of the mold core 1 for molding glass of the present invention. Wherein, the structure of the mold core 1 includes a substrate 100 , a first noble metal layer 101 , a second noble metal layer 102 , a third noble metal layer 103 , and a protective film 104 stacked in sequence. Wherein the protective film 104 is diamond-like carbon (DLC). In addition, the protective film 104 has a molding surface 120 thereon.
[0030]The substrate 100 is usually made of tungsten carbide, which usually contains a nickel component. Therefore, the material of the first noble metal layer 101 is preferably an iridium-rhenium alloy containing nickel to increase the distance between the first noble metal layer 101 and the substrate 100. Adhesion. In terms of the formation of the first noble metal layer 101, the surface of the substrate 100 is ground and polished first, and a layer of nickel-containing iridium-rhenium...
Embodiment 2
[0037] Please refer to FIGS. 2A-2C , which are a series of cross-sectional views showing the flow of the method for regenerating the mold core 1 for glass molding according to the present invention.
[0038] Because the carbon in the protective film 104 and the third noble metal layer 103 of the mold core 1 of the molded glass of the present invention shown in FIG. 1 can be etched and removed by oxygen plasma. Therefore, when the use of the mold core 1 is about to expire or reaches its molding life, it will be replaced from the production line for regeneration. First, in FIG. 2A, the protective film 104 and the third noble metal layer 103 are etched and removed by oxygen plasma 200, wherein, whether the third noble metal layer 103 is arranged in a superlattice between carbon atoms and noble metal atoms, or the surface is infiltrated In the carbon-treated noble metal layer, when the carbon atoms are etched and removed by the oxygen plasma 200 , the remaining noble metal atoms w...
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