CN102488366A - Nickel-coated steel coin with double-face hidden pattern, and manufacturing technology thereof - Google Patents
Nickel-coated steel coin with double-face hidden pattern, and manufacturing technology thereof Download PDFInfo
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- CN102488366A CN102488366A CN201110429378XA CN201110429378A CN102488366A CN 102488366 A CN102488366 A CN 102488366A CN 201110429378X A CN201110429378X A CN 201110429378XA CN 201110429378 A CN201110429378 A CN 201110429378A CN 102488366 A CN102488366 A CN 102488366A
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Abstract
The invention discloses a nickel-coated steel coin with a double-face hidden pattern, and a manufacturing technology thereof. The coin has a steel-cored nickel-plated material. At a same position of the nickel-coated steel coin, two different hidden patterns can be observed. When observed at a certain angle, the two hidden patterns are invisible. The manufacturing technology comprises steps that: a double-face hidden pattern is designed at a same position on a coin draft by using computer-aided software; the manufactured double-face hidden pattern draft is converted into a carving profile by using CAM software; the double-face hidden pattern is carved on a mould by using a high-precision computer carving machine; the original mould is pressed into an impression mould with a multi-time rollover-pressing method; and the nickel-coated steel coin with the double-face hidden pattern is impressed by using the manufactured mould. With the manufacturing technology provided by the invention, an application of the technology on a coin with a steel-cored nickel-plated material is realized for a first time. The technical content of the coin is improved; the falsification difficulty of the coin is improved, and a good artistic expression is provided for the coin.
Description
Technical field
The present invention relates to the anti-counterfeiting technology of coin and coin, specifically a kind of nicke-clad steel coin and manufacture craft thereof with double-side hidden figure line.
Background technology
Double-side hidden engraving is exactly to show respectively after adopting CAD that two kinds of different patterns are handled that the metal surface carries out the technology of dual pattern engraving, through high-accuracy computer carving machine two kinds of different patterns engravings is being produced two kinds of different visual effects in a figure.Its concrete principle is zigzag two sides, carves two kinds of patterns respectively, thereby produces stealthy visual effect.If promptly first kind of pattern engraving is at the zigzag left surface; Second kind of pattern then carved at right flank, like this when light or point of observation be from zigzag left-hand when right, what can see only is first kind of pattern; Otherwise in the time of from right to left, also only can see second kind of pattern.
In present world coin circulation system, adopted the double-side hidden engraving technology on Japanese five one hundred days unit and the 50 yuan of two Albatra metal-coin circulation in Taiwan, on the coin circulation of steel core nickel plating material, then not seeing has application; This mainly is because steel core nickel plating material hardness is high than copper alloy; In double-side hidden engraving figure line forming process, the degree of depth loss of figure line is bigger, and then influences the definition of double-side hidden engraving figure line; Therefore; The degree of depth that how to guarantee double-side hidden engraving figure line in moulding process also is the key point and the difficult point of making this coin, therefore, on steel core nickel plating material, uses the double-side hidden engraving technology and has bigger technical difficulty.
Summary of the invention
The object of the present invention is to provide a kind of nicke-clad steel coin and manufacture craft thereof of using the double-side hidden engraving technology, after the enforcement, the popular anti-counterfeiting performance and the appearance of nicke-clad steel coin are all promoted largely.
The objective of the invention is to realize like this:
A kind of nicke-clad steel coin with double-side hidden figure line, this coin are steel core nickel plating material, can observe two kinds of different stealth figure lines at the same position of nicke-clad steel coin, observe at a certain special angle, and two kinds of stealthy figure lines are all invisible.
The manufacture craft of described nicke-clad steel coin: this process using is carried out the mode of dual pattern engraving in the metal surface, different combination of patterns is produced the different visual effect in a figure, specifically comprises following flow process:
A) double-side hidden figure line is in zigzag two sides; Carving two kinds of patterns respectively constitutes; Adopt a certain position design double-side hidden figure line of computer aided design software at coin; Its zigzag kerve spacing is 0.1～0.5mm, and zigzag kerve angle is 30～120 °, and the kerve angle of stealthy figure line is 15～90 °;
B) adopt the CAM engraving software to convert double-side hidden figure line original text to the engraving file, it is 0.01～0.09mm that the double-side hidden carving depth is set, and the carving depth of zigzag kerve is 0.01～0.10mm;
C) adopt computer carving machine or laser engraving machine engraving grand master pattern, adopt the mode of repeatedly turning over pressure to turn over making ide, on the base cake, impress out nicke-clad steel coin through marking press with double-side hidden figure line.
Description of drawings
Fig. 1 is a manufacture craft flow chart of the present invention;
Fig. 2 is a nicke-clad steel coin sketch map of the present invention;
Fig. 3 turns over compression set position sketch map for mould of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is further specified.
1) in Fig. 1; Through CASE(Computer Aided Software Engineering) AutoCAD and a certain position design double-side hidden figure line of Type3 on coin design picture proof; Zigzag kerve spacing is 0.1～0.5mm, and zigzag kerve angle is 30o～120o, and the kerve angle of stealthy figure line is 15o～90o.
2) in Fig. 1, Artcam converts the double-side hidden picture proof to the engraving file through CAM software, and setting the zigzag kerve degree of depth simultaneously is 0.01～0.1mm, and the kerve degree of depth of stealthy figure line is 0.01～0.09mm.
3) in Fig. 1, will carve in the file importing computer carving machine and carry out the grand master pattern engraving.
4) in Fig. 1, because the hardness of nicke-clad steel material is higher, in the moulding process; The loss of double-side hidden figure line wants big with distortion compared to other coin material; In order to reduce the loss and the distortion of double-side hidden figure line in the moulding process, adopt the mode of repeatedly turning over pressure to turn over making ide, guarantee that the degree of depth of double-side hidden figure line on the die loss does not take place and scheme line not deform; Specifically be with carrying out vacuum softening annealing through the die that once turns over after the pressure; Its annealing process is: vacuum drying oven is heated to 860 ℃, is incubated 2 hours, cools to room temperature then with the furnace.
5) in Fig. 3, with the die that reduces hardness again again with turning over pressure once after the grand master pattern aligned pattern, owing to a kind of nicke-clad steel coin figure line degree of depth with double-side hidden figure line is more shallow; Therefore, turn in the pressure process at secondary, figure line on the die and the figure line contraposition on the grand master pattern be difficulty comparatively; For guaranteeing to turn over once more in the pressure process, deviation does not appear in the figure line on the die, when turning over pressure for the first time; On grand master pattern, having set five positioning ports positions; Like this through once turning over die after the pressure through after the soft annealing, turn over when pressing carrying out secondary, grand master pattern just can overlap with figure line on the die fully.Through after secondary turns over pressure, the figure line on the die turns over presses clear more fullly like this, and the loss of double-side hidden figure line is just littler with distortion, thereby, can guarantee the definition of double-side hidden figure line on the nicke-clad steel product.
In Fig. 3, Reference numeral 5 is a grand master pattern, and Reference numeral 6 is the last figure line of grand master pattern, and Reference numeral 7 is the positioning port on the grand master pattern, and the degree of depth of positioning port is 0.1mm～1mm, and length is 2mm～3mm, and width is 0.5mm～1mm.
5) in Fig. 1, employing is turned over the die that presses and is impressed on the base cake of nicke-clad steel material through marking press, produces the nicke-clad steel coin with double-side hidden figure line characteristic.
Embodiment
Consult Fig. 2, through computer aided design software, design square hole and two kinds of double-side hidden figure of hexagon line; Observe from the top down or from bottom to top; Can see square hole or hexagon at the same position of nicke-clad steel coin, observe that two kinds of stealthy figure lines are then all invisible in positive vertical direction.
In Fig. 2, coin body 1 is the nicke-clad steel material, and square hole 2 is a kind of pattern; Hexagon 3 is another kind of pattern, and the degree of depth of zigzag kerve 4 is 0.08mm, and angle is that 110 ° of spacings are 0.25mm; Forming square hole and hexagonal kerve degree of depth is 0.06mm, and angle is 50 °, and spacing is 0.25mm.
Claims (3)
1. nicke-clad steel coin with double-side hidden figure line, it is characterized in that: the material of this coin is the steel core electronickelling, at the same position of coin, the different visual angle can be seen different stealth figure lines or can't see stealthy figure line.
2. coin according to claim 1 is characterized in that said double-side hidden figure line is personage, figure or ramage.
3. the manufacture craft of the said nicke-clad steel coin of claim 1 is characterized in that this process using carries out the mode of dual pattern engraving in the metal surface, and different combination of patterns is produced the different visual effect in a figure, specifically comprises following flow process:
A) double-side hidden figure line is in zigzag two sides; Carving two kinds of patterns respectively constitutes; Adopt a certain position design double-side hidden figure line of computer aided design software at coin; Its zigzag kerve spacing is 0.1～0.5mm, and zigzag kerve angle is 30～120 °, and the kerve angle of stealthy figure line is 15～90 °;
B) adopt the CAM engraving software to convert double-side hidden figure line original text to the engraving file, it is 0.01～0.09mm that the double-side hidden carving depth is set, and the carving depth of zigzag kerve is 0.01～0.10mm;
C) adopt computer carving machine or laser engraving machine engraving grand master pattern, adopt the mode of repeatedly turning over pressure to turn over making ide, on the base cake, impress out nicke-clad steel coin through marking press with double-side hidden figure line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110429378.XA CN102488366B (en) | 2011-12-20 | 2011-12-20 | Nickel-coated steel coin with double-face hidden pattern, and manufacturing technology thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110429378.XA CN102488366B (en) | 2011-12-20 | 2011-12-20 | Nickel-coated steel coin with double-face hidden pattern, and manufacturing technology thereof |
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| CN102488366A true CN102488366A (en) | 2012-06-13 |
| CN102488366B CN102488366B (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110429378.XA Active CN102488366B (en) | 2011-12-20 | 2011-12-20 | Nickel-coated steel coin with double-face hidden pattern, and manufacturing technology thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108477781A (en) * | 2018-03-21 | 2018-09-04 | 深圳市金宝盈文化股份有限公司 | A kind of reverse mould technique of illusion-colour jewelry piece |
| CN111109782A (en) * | 2019-12-24 | 2020-05-08 | 上海造币有限公司 | Anti-counterfeiting nickel-coated steel coin and manufacturing process thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108464587A (en) * | 2018-03-21 | 2018-08-31 | 深圳市金宝盈文化股份有限公司 | A kind of hard gold process of illusion-colour jewelry piece |
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| CN1403308A (en) * | 2002-09-26 | 2003-03-19 | 中国印钞造币总公司 | Method of forming changeable optical image on metal surface and thus made product |
| CN1667161A (en) * | 2004-03-08 | 2005-09-14 | 中国印钞造币总公司 | Surface protection process for copper, aluminium alloy, steel-cored nickel coin and medal |
| CN1706663A (en) * | 2004-06-08 | 2005-12-14 | 中国印钞造币总公司 | Technological process of making coin with multiple-surface concealed engraving |
| CN1830692A (en) * | 2006-04-21 | 2006-09-13 | 中国印钞造币总公司 | Dynamic hidden antifalse pattern and its manufacturing method |
| CN1830681A (en) * | 2006-04-21 | 2006-09-13 | 中国印钞造币总公司 | Manufacturing method of metal surface multiple latent image and antifalse product made by said method |
| CN101147630A (en) * | 2006-09-21 | 2008-03-26 | 中国印钞造币总公司 | Optical changeable pattern coin and manufacturing method thereof |
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2011
- 2011-12-20 CN CN201110429378.XA patent/CN102488366B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5406264A (en) * | 1994-04-18 | 1995-04-11 | Sensormatic Electronics Corporation | Gaming chip with magnetic EAS target |
| CN1403308A (en) * | 2002-09-26 | 2003-03-19 | 中国印钞造币总公司 | Method of forming changeable optical image on metal surface and thus made product |
| CN1667161A (en) * | 2004-03-08 | 2005-09-14 | 中国印钞造币总公司 | Surface protection process for copper, aluminium alloy, steel-cored nickel coin and medal |
| CN1706663A (en) * | 2004-06-08 | 2005-12-14 | 中国印钞造币总公司 | Technological process of making coin with multiple-surface concealed engraving |
| CN1830692A (en) * | 2006-04-21 | 2006-09-13 | 中国印钞造币总公司 | Dynamic hidden antifalse pattern and its manufacturing method |
| CN1830681A (en) * | 2006-04-21 | 2006-09-13 | 中国印钞造币总公司 | Manufacturing method of metal surface multiple latent image and antifalse product made by said method |
| CN101147630A (en) * | 2006-09-21 | 2008-03-26 | 中国印钞造币总公司 | Optical changeable pattern coin and manufacturing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108477781A (en) * | 2018-03-21 | 2018-09-04 | 深圳市金宝盈文化股份有限公司 | A kind of reverse mould technique of illusion-colour jewelry piece |
| CN111109782A (en) * | 2019-12-24 | 2020-05-08 | 上海造币有限公司 | Anti-counterfeiting nickel-coated steel coin and manufacturing process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102488366B (en) | 2014-05-21 |
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Address after: 200061 No. 17 Guangfu West Road, Shanghai, Putuo District Patentee after: SHANGHAI MINT Co.,Ltd. Patentee after: China Banknote Printing and Minting Group Co.,Ltd. Address before: 200061 No. 17 Guangfu West Road, Shanghai, Putuo District Patentee before: SHANGHAI MINT Co.,Ltd. Patentee before: CHINA BANKNOTE PRINTING AND MINTING Corp. |