Jet polishing method for coinage moulds

A spray and mold technology, applied in the field of mold spray polishing, can solve the problem of polishing without using a coinage mold, and achieve the effect of good combination, flexible polishing method and quality improvement.

Inactive Publication Date: 2020-08-07
SHENYANG MINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, the main application in China is in the automotive industry, the field of final finishing of high-precision parts, and it is not used in the polishing of coinage molds

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] After the machine is turned on, the operator holds the mold with gloves. The surface of the mold is at an angle of 45 degrees to the abrasive nozzle. The distance between the mold and the nozzle is about 100MM to ensure that the abrasive is splashed on the surface of the mold, and then the pre-plating polishing process is performed. Use a polishing machine Instead of manual polishing tools such as brushes and felt wheels, polish the part of the mold that needs a bright surface effect, and then open the mold after polishing. The process is as follows:

[0020] Mold copper brush brush surface - automatic polishing machine polishing - sandpaper, paper, abrasive paste open surface;

[0021] The specific parameters of automatic polishing machine polishing are determined according to the surface effect of the mold and laser requirements. Different brightness and pattern distribution correspond to different polishing parameters, and different brightness has different alignment ...

Embodiment 2

[0029] Post Plating Polishing:

[0030] Use a polishing machine instead of a polishing tool such as a felt wheel to demist the entire coating. Different coatings have different polishing parameters, and the parameters are determined according to the coating and electroplating mist conditions. The effect of polishing PVD electroplating films is uniform, there is no obvious color difference, and the brightness of the mold is good.

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PUM

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Abstract

The invention relates to a jet polishing method for coinage moulds. The jet polishing method comprises the following steps that a, parameters of tap position, frequency and polishing time are correspondingly adjusted; b, grinding materials of different grinding degrees are selected; c, the polishing effects of the moulds under different parameters are recorded; d, according to the polishing effects, a parameter range of the top position, the frequency and the polishing time and a selecting range are obtained through contrastive analysis; e, the moulds of different textures, patterns and technological requirements are tested to optimize the parameters; f, the optimized parameters are tidied and recorded; g, the optimized parameters are selected according to the difference of the textures, the patterns and the technological requirements; and h, the moulds are polished by equipment with the optimized parameters. The jet polishing method for the coinage moulds has the beneficial effects that polishing is carried out without covering, the polishing mode is flexible, and the quality problems such as shallow pattern-line grinding, grinding leakage and corner angle deformation are solved;the effect of brushing and brightening pattern-line relief details can be realized; and the yield after plating of the mould is improved, and the working efficiency is obviously improved.

Description

technical field [0001] The present invention relates to an equipment-based jet polishing method for molds, and more particularly to a jet polishing method for coinage molds. Background technique [0002] Because the coinage industry has high requirements on the precision and surface quality of mold metal surface polishing, the domestic and foreign coinage industries have continued to use manual polishing, that is, polishing by combining different types of abrasive pastes with felt wheels. The polishing principle is that the rotation of the felt wheel drives the movement of the abrasive paste particles, so as to achieve the purpose of polishing on the metal surface. However, in the long-term production practice, it is found that the manual polishing method will lead to problems of low yield and efficiency. [0003] Jet polishing technology is an automatic polishing technology based on equipment, which makes the workpiece smooth and bright through the high-speed fluid rotatio...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B24C1/08
CPCB24C1/08
Inventor张珠慧刘洪鹏赵大仲刘勇马麟唐炫慧李佳林邵伟李忘贤李宇冯立新
OwnerSHENYANG MINT CO LTD