The shell buttons and ** buttons are made differently. The shell buttons are mainly processed through the following procedures: selection of shells, punching, grinding, squeezing, punching, lapping, polishing and bleaching.
The mechanical power source for the early production of shell buttons was to drive the rotation of the pulleys by pedaling. Now this is completely replaced by mechanization. For some traditional buttons, semi-manual craftsmanship is still used when making shell buttons so that the shells can be kept. The natural luster and charm. Here's a description of how shell buttons are made:
1 choice shellfish: According to the button size and requirements of different shells, but the utilization of shells is actually not high.
2 Punching: Also called blanking, it refers to making the initial button blank.
3 Polishing: Flatten the button blank on the grinding wheel.
4 button groove: Button the middle part of the button, so that the button has a concave shape.
5 punch: According to different needs to put on different holes, there are generally two and four eyes.
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