The preparation method that a kind of double-colored pattern crystal of inserted gold and silver is set a table
Technical field
The present invention relates to crystal works field, and in particular to the making that a kind of inserted double-colored pattern crystal of gold and silver is set a table
Method.
Background technology
With the lifting of people's consuming capacity, crystal works more and more come into the life of people.Crystal works
A great variety, different modeling, it is common one kind that crystal, which is set a table, crystal surface is gold-plated or silver after can more lift value.In water
Simple gold-plated/the silver in brilliant surface is excessively dull, also without stereoeffect, can have fine pattern and rich it is desirable to crystal surface
The demand of rich color is more and more stronger.
The content of the invention
Goal of the invention:To overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of inserted gold and silver is double-colored
The preparation method that pattern crystal is set a table, makes the outer shroud that crystal is set a table form obvious shade deviation with inner core by embedded structure
It is different, while lifting the third dimension and ornamental value of crystal works.
Technical scheme:The present invention provides the preparation method that a kind of inserted double-colored pattern crystal of gold and silver is set a table, including following
Step:
(1) crystal is processed into inner core and the outer shroud being set in outside inner core respectively;
(2) core surface sputters one layer of bright copper;
(3) inner core side sputtering silverskin;
(4) the silverskin surface obtained in step (3) coats photoresist, upper hanger, coat photoresist inner core preceding surface and
Surface is exposed to afterwards carries out gold-plated in electroplate liquid, obtains gold-plated film;
(5) the gold-plated inner core for obtaining step (4) is put into acetone, and ultrasound removes photoresist, cleans drying;
(6) inner core is embedded on outer shroud.
Preferably, the thickness of the bright copper described in step (2) is 50nm.
Preferably, the thickness of silverskin described in step (3) is 2~5 μm.
Preferably, the technological parameter of plating gold is in step (4):The electrolyte of plating gold includes 30~50g/ of sulfurous acid gold
L, 2- be thio -5,5- dimethyl hydantoins, 10~120g/L, 10~50g/L of succimide, 10~40g/L of potassium citrate,
40~100g/L of citric acid, 1~3g/L of potassium antimony tartrate, 0.5~2g/L of polyethylene glycol, 20~150g/L of sodium sulfite, different cigarette
2~10g/L of acid, the pH of the electroplate liquid is 4.1~5.4, and current density is 0.5~1A/dm2。
Preferably, the thickness of gold-plated film described in step (4) is 20~50 μm.
Preferably, the gap between when inner core and outer shroud inlay cooperation in step (6) is 0.05~0.1mm.
Preferably, inner core is at the center of outer shroud in step (1), and the geometry of inner core is rotation oar shape or regular polygon
Shape.
Beneficial effect:The present invention has advantages below compared with prior art:Compared with prior art, the present invention is provided
The preparation method that a kind of double-colored pattern crystal of inserted gold and silver is set a table, is set a table by the structure lifting for setting inner core and outer shroud to inlay
Three-dimensional contouring, the inner core side in mosaic texture is silver-plated, and front and rear surfaces difference is gold-plated, can improve color and luster contrast and pendulum
The stereo admiring of part.The preparation method is simple and quick, reproducible.
Embodiment
Technical solution of the present invention is described in detail below, but protection scope of the present invention is not limited to the implementation
Example.
Embodiment 1
One block of circular crystal is set a table after cleaning up, the inner core of rotation oar shape is processed into respectively and is set in outside inner core
Outer shroud;Core surface sputters one layer of bright copper, and the thickness of the bright copper layers is 50nm, wherein, the side of inner core sputters 3 μm of silver
Film simultaneously coats photoresist on its surface, and the preceding surface and rear surface of inner core are exposed in electroplate liquid and carry out gold-plated, electricity by upper hanger
Gold-plated electrolyte include sulfurous acid gold 50g/L, 2- it is thio -5,5- dimethyl hydantoins 120g/L, succimide 50g/
L, potassium citrate 40g/L, citric acid 70g/L, potassium antimony tartrate 2g/L, polyethylene glycol 1g/L, sodium sulfite 100g/L, isonicotinic acid
6g/L, the pH of the electroplate liquid is 4.1, and current density is 0.5A/dm2, obtain the gold-plated film of 35 μ m-thicks.Then in after will be gold-plated
Core is put into acetone soln, ultrasonic 10min, removes photoresist, is cleaned drying, finally inner core is mounted on outer shroud, Liang Zhepei
Gap between during conjunction is 0.05mm.
Embodiment 2
One block of square crystal is set a table after cleaning up, the inner core of rotation oar shape is processed into respectively and is set in outside inner core
Outer shroud;Core surface sputters one layer of bright copper, and the thickness of the bright copper layers is 50nm, wherein, the side of inner core sputters 2 μm of silver
Film, and its surface coat photoresist, upper hanger, by the preceding surface and rear surface of inner core be exposed to electroplate liquid in carry out it is gold-plated,
Plating gold electrolyte include sulfurous acid gold 30g/L, 2- it is thio -5,5- dimethyl hydantoins 60g/L, succimide 30g/
L, potassium citrate 20g/L, citric acid 100g/L, potassium antimony tartrate 3g/L, polyethylene glycol 2g/L, sodium sulfite 150g/L, different cigarette
Sour 10g/L, the pH of the electroplate liquid is 5.4, and current density is 1.0A/dm2, obtain the gold-plated film of 50 μ m-thicks.Then after will be gold-plated
Inner core be put into acetone soln, ultrasonic 10min, remove photoresist, clean drying, finally inner core is mounted on outer shroud, two
Gap between when person coordinates is 0.07mm.
Embodiment 3
One block of fan-shaped crystal is set a table after cleaning up, the inner core of rotation oar shape is processed into respectively and is set in outside inner core
Outer shroud;Core surface sputters one layer of bright copper, and the thickness of the bright copper layers is 50nm, wherein, the side of inner core sputters 5 μm of silver
Film simultaneously coats photoresist on its surface, and the preceding surface and rear surface of inner core are exposed in electroplate liquid and carry out gold-plated, electricity by upper hanger
Gold-plated electrolyte include sulfurous acid gold 30g/L, 2- it is thio -5,5- dimethyl hydantoins 10g/L, succimide 10g/L,
Potassium citrate 10g/L, citric acid 40g/L, potassium antimony tartrate 1g/L, polyethylene glycol 1g/L, sodium sulfite 20g/L, isonicotinic acid 2g/
L, the pH of the electroplate liquid is 4.1, and current density is 1.0A/dm2, obtain the gold-plated film of 20 μ m-thicks.Then the inner core after will be gold-plated
It is put into acetone soln, ultrasonic 10min, removes photoresist, clean drying, finally inner core is mounted on outer shroud, both coordinates
When between gap be 0.10mm.
Above example is that explanation example effect is played to the technical concept of the present invention, can not limit the present invention with this
Protection domain, those skilled in the art modify and are equal in the spirit and scope for not departing from technical solution of the present invention
Replace, all should fall within the scope and spirit of the invention.