Gold coin manufacturing process, gold coin and clock

A manufacturing process and technology of gold coins, applied in the field of minting technology, can solve the problems of single luster of gold coins, achieve high value, enhance visual effects and sense of value, and enhance market competitiveness

Active Publication Date: 2018-09-04
深圳市帕玛精品制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a gold coin manufacturing process, gold coins and clocks to solve the technical problem in the prior art that the surface of gold coins can only present a single luster

Method used

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  • Gold coin manufacturing process, gold coin and clock
  • Gold coin manufacturing process, gold coin and clock
  • Gold coin manufacturing process, gold coin and clock

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Embodiment approach

[0050] Further, see figure 1 , as a specific implementation of the gold coin manufacturing process provided by the present invention, the above step S40 specifically includes the following steps:

[0051] S41. Put the cut gold piece into the above-mentioned accommodating cavity 111, and the top surface of the gold piece faces the bottom surface of the accommodating cavity 111;

[0052] S42, placing the buffer sheet on the bottom surface of the gold sheet;

[0053] S43, splitting the second extrusion die against the buffer sheet;

[0054] S44. Apply pressure to the second extrusion die to extrude the gold sheet into gold coins 2 .

[0055] Specifically, in step S40, the above-mentioned extrusion die is first installed on the hydraulic press, the first extrusion die split 11 is fixed on the hydraulic press workbench, the second extrusion die split is installed on the hydraulic press slider, and then the completed The top surface of the cut gold sheet faces the bottom surface ...

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Abstract

The invention provides a gold coin manufacturing process. The gold coin manufacturing process comprises the following steps of: S10, processing a gold material into a gold sheet through multi-time rolling; S20, polishing the grinded top surface of the rolled gold sheet into a mirror surface; S30, cutting the polished gold sheet into a gold sheet adaptive to the shape of an extrusion mould; S40, placing the cut gold sheet into the extrusion mould for extruding to form the gold coin; S50, putting the formed gold coin into a trimming mould for trimming; and S60, clearing burrs left on the gold coin and cleaning the gold coin, wherein the extrusion mould comprises a first extrusion mould sub body, the first extrusion mould sub body comprises an accommodating cavity and an image-text cavity, and surface grains of the accommodating cavity are not same with those of the image-text cavity. The gold coin manufacturing process adopts the extrusion mould, and different surface grains are processed out on the accommodating cavity of the first extrusion mould sub body and the surface of the image-text cavity, so that the surface of the extruded gold coin at least can show two different kinds ofgloss, and therefore, the problem that the surface of the gold coin only can show single gloss is solved.

Description

technical field [0001] The invention belongs to the technical field of minting technology, and more specifically relates to a gold coin manufacturing technology, gold coins and clocks and watches. Background technique [0002] At present, in the manufacture of general gold coins, no matter by casting or stamping methods, the surface of the produced gold coins will form patterns and / or characters with relief effects. However, the patterns and / or characters and the surface of the gold coin body can only present Single luster, lack of change, slightly dull. Contents of the invention [0003] The object of the present invention is to provide a gold coin manufacturing process, a gold coin and a clock to solve the technical problem in the prior art that the surface of the gold coin can only present a single luster. [0004] In order to achieve the above object, the technical solution adopted in the present invention is: a kind of gold coin manufacturing process is provided, com...

Claims

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Application Information

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IPC IPC(8): B23P15/00B21C25/02G04B19/10
CPCB21C25/02B23P15/00G04B19/103
Inventor 刘德新陈思楚詹俊叶运锋张剑利
Owner 深圳市帕玛精品制造有限公司
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