CN110965088A - Ancient restoring process of gold and ancient restoring gold - Google Patents
Ancient restoring process of gold and ancient restoring gold Download PDFInfo
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- CN110965088A CN110965088A CN201910798383.4A CN201910798383A CN110965088A CN 110965088 A CN110965088 A CN 110965088A CN 201910798383 A CN201910798383 A CN 201910798383A CN 110965088 A CN110965088 A CN 110965088A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/50—Electroplating: Baths therefor from solutions of platinum group metals
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
- C25D5/52—After-treatment of electroplated surfaces by brightening or burnishing
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Abstract
The invention provides a gold antique process, which comprises the following steps: A) carrying out a mold holding procedure on the gold casting mold blank; B) electroplating black ruthenium on the gold subjected to die holding: taking ruthenium metal as an anode and gold to be plated as a cathode for electroplating; C) performing die-holding black removal and polishing on the electroplated gold; D) and performing acid treatment, mold-holding embedding assembly and grinding on the polished gold to obtain the product. The invention solves the problem that the gold cannot be oxidized and worn due to stable chemical property by matching the electroplating of black ruthenium with the specific die-holding black removing and polishing process. The effect is different from other common gold effect processes, the product of the process has slightly dark effect color, and black is left at partial positions, so that the lines of the product are clearer, layered and chronologically felt. The whole product is an ancient element, and the color and weight of the product are not affected basically.
Description
Technical Field
The invention relates to a gold surface treatment process, in particular to an ancient restoring process of gold and ancient restoring gold.
Background
Along with the popularization of gold, people have more and more requirements on gold, and along with the rising of the pure silver antique finishing process, the research on the antique finishing process of gold enters a new stage.
However, the prior art generally considers that the gold of the handicraft is not easy to make old, the gold is difficult to make old, and the gold is not easy to oxidize like silver, and is relatively stable, and the natural oxidation is generally changed into red and can not turn black or gray.
Therefore, it is necessary to develop a new gold retro process which can solve the problem that the gold has stable chemical properties and cannot be oxidized and worn on the surface.
Disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is to provide a gold retro process, the gold made by the gold retro process provided by the present invention has a slightly dark color, and a black color is left at a part of the gold retro process, so that the product lines are clearer, layered and chronologically perceived.
The invention provides a gold antique process, which comprises the following steps:
A) carrying out a mold holding procedure on the gold casting mold blank;
B) electroplating black ruthenium on the gold subjected to die holding: taking ruthenium metal as an anode and gold to be plated as a cathode for electroplating;
C) performing die-holding black removal and polishing on the electroplated gold;
D) and performing acid treatment, mold-holding embedding assembly and grinding on the polished gold to obtain the product.
Preferably, the step a) is specifically:
removing burrs and blank peaks of the gold casting mold blank, finishing the shape, and then sequentially rubbing the surface of the product with 400#, 800# and 1200# sandpaper to smooth.
Preferably, the electroplating is specifically:
the electroplating voltage is 1-10V; the current is 0.3 to 5.0A/dm2The content of ruthenium is 2-10 g/L, the pH value is 0.5-2.5, and the density of the electrolyte solution composed of the positive ions of the metal ruthenium is 0.8-2.5 g/cm3The electroplating time is 6-30 minutes, and the workpiece swings for 30-20 revolutions per second. The ruthenium plating temperature is 25-44 ℃.
Preferably, the die-holding black removing specifically comprises: and reserving a black line at the concave line and the seam, and rubbing off black parts at other places by using No. 800-1200 abrasive paper.
Preferably, the polishing is specifically: polishing the raised part of the product by adopting polishing solution in a polishing machine, wherein the polishing solution is a polishing cleaning solution special for jewelry; the present invention is not limited thereto, and may be commercially available as is well known to those skilled in the art; the polishing time is 5-60 min; the polishing machine is one of a magnetic needle polishing machine or a ball polishing machine.
Preferably, the acid is sulfuric acid; the acid treatment temperature is 240-260 ℃; the time is 5-20 s; the acid concentration is greater than or equal to 92.5% industrial sulfuric acid.
Preferably, the die-holding embedding assembly specifically comprises:
assembling and welding the gold main body and the accessory; the accessories include necklaces, keepers or badges.
Preferably, the polishing specifically comprises: and manually polishing and brightening the parts requiring high brightness by using a tungsten pen and an agate knife.
Preferably, the gold mold blank is 99.9% gold.
The invention provides retro gold prepared by any one of the processes in the technical scheme.
Compared with the prior art, the invention provides a gold antique process, which comprises the following steps: A) carrying out a mold holding procedure on the gold casting mold blank; B) electroplating black ruthenium on the gold subjected to die holding: taking ruthenium metal as an anode and gold to be plated as a cathode for electroplating; C) performing die-holding black removal and polishing on the electroplated gold; D) and performing acid treatment, mold-holding embedding assembly and grinding on the polished gold to obtain the product. The invention solves the problem that the gold cannot be oxidized and worn due to stable chemical property by matching the electroplating of black ruthenium with the specific die-holding black removing and polishing process. The effect is different from other common gold effect processes, the product of the process has slightly dark effect color, and black is left at partial positions, so that the lines of the product are clearer, layered and chronologically felt. The whole product is an ancient element, and the color and weight of the product are not affected basically.
Drawings
FIG. 1 is a diagram showing the results of the gold casting mold blank process in example 1 of the present invention;
FIG. 2 is a graph showing the results of the black ruthenium plating process in example 1 of the present invention;
FIG. 3 is a view after polishing in example 1 of the present invention;
FIG. 4 shows a pattern after sanding in accordance with the present invention in example 1;
FIG. 5 is a diagram of untreated plain gold;
FIG. 6 is a composite golden diagram prepared in example 2 of the present invention;
FIG. 7 is a drawing showing the electroplating of example 3 of the present invention;
FIG. 8 is a diagram of a product prepared in example 3 of the present invention;
FIG. 9 is a graph showing the results of the rhodium electroplating process in comparative example 2 of the present invention.
Detailed Description
The invention provides a gold retro process and retro gold, and a person skilled in the art can use the contents of the process for reference and appropriately improve the process parameters to realize the gold retro process. It is expressly intended that all such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the scope of the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
The invention provides a gold antique process, which comprises the following steps:
A) carrying out a mold holding procedure on the gold casting mold blank;
B) electroplating black ruthenium on the gold subjected to die holding: taking ruthenium metal as an anode and gold to be plated as a cathode for electroplating;
C) performing die-holding black removal and polishing on the electroplated gold;
D) and performing acid treatment, mold-holding embedding assembly and grinding on the polished gold to obtain the product.
The gold retro process provided by the invention firstly carries out a mould holding procedure on a gold mould blank.
The gold casting mould blank of the invention is 99.9% gold.
The die holding process of the invention specifically comprises the following steps:
removing burrs and blank peaks of the gold casting mold blank, finishing the shape, and then sequentially rubbing the surface of the product with 400#, 800# and 1200# sandpaper to smooth. The treatment time is preferably 10-60 minutes according to different sizes of product structures.
The method for removing the burrs and the blank peaks of the gold casting mold blank is not limited, and tools such as a file, sand paper, a sand needle, a laser welding machine and the like which are well known by the technical personnel in the field can be used.
Electroplating black ruthenium on the gold subjected to die holding: taking ruthenium as an anode and taking gold to be plated as a cathode for electroplating.
The electroplated metal element ruthenium and the element symbol RU are black, and the electro-black ruthenium mainly forms a metal coating on the surface of the product, and is black, and the electro-black ruthenium has the function of adding color to the gold product, so that the three-dimensional layering of the product is more obvious.
The process of electroplating ruthenium according to the invention is essentially as follows:
taking ruthenium metal as an anode and gold to be plated as a cathode;
an electrolyte solution composed of positive ions of metallic ruthenium; the density of the electrolyte is preferably 0.8-2.5 g/cm3；
After the power supply of direct current is applied, the metal of the anode is oxidized (loses electrons), and positive ions in the solution are reduced (get electrons) to atoms at the cathode and are accumulated on the surface layer of the cathode.
The method specifically comprises the following steps:
the electroplating voltage is preferably 1-10V; more preferably 1.5-8V; most preferably 1.5-5V;
the current is preferably 0.3 to 5.0A/dm2More preferably 0.5 to 3.0A/dm2Most preferably 1.5 to 2.0A/dm2；
The content of ruthenium is preferably 2-10 g/L, more preferably 3-8 g/L, and most preferably 5-7 g/L;
the pH is preferably 0.5 to 2.5, more preferably 0.6 to 1.1.
The temperature is 25-44 ℃,
the density of the electrolyte solution composed of positive ions of metallic ruthenium is preferably 0.8-2.5 g/cm3More preferably 1 to 2.0g/cm3Most preferably 1.02g/cm3～1.5g/cm3Particularly preferably 1.02g/cm3。
The electroplating time is preferably 6 to 30 minutes, more preferably 8 to 14 minutes,
the workpiece swings for 30-20 revolutions per second.
By controlling the electroplating parameters, the invention ensures that the electroplated object has good aesthetic property and stability after being electroplated.
And (5) performing die-holding black removal and polishing on the electroplated gold.
The mold-holding black removing specifically comprises the following steps: and reserving a black line at the concave line and the seam, and rubbing off black parts at other places by using No. 800-1200 abrasive paper.
The black and ruthenium parts of the product needing polishing are removed, a craftsman rubs off the black parts by using 800-1200# abrasive paper, a black line is mainly reserved on the concave line and the seam, and the rest parts are reserved as polishing surfaces.
The invention creatively reserves a black line for the concave line and the seam position, and the process ensures that the antique effect of the invention is good. The technical effects of clear lines and stronger layering are achieved.
The polishing of the invention specifically comprises the following steps: and polishing the convex part of the product by using polishing liquid in a polishing machine.
The process comprises the following steps of putting a product into a polishing machine, wherein the polishing machine comprises a magnetic needle polishing machine and a ball polishing machine, adding polishing liquid to polish the convex part of the product, and the polishing liquid is a polishing cleaning liquid special for jewelry; the present inventors do not limit this and may use commercially available products well known to those skilled in the art. So as to form a contrast effect with the black part, and the time is preferably 5-60 min; more preferably 15 to 30 min.
The invention uses polishing technique to polish the gold product with black ruthenium, which can form unique gold color (dark black golden gold).
And performing acid treatment, mold-holding embedding assembly and grinding on the polished gold to obtain the product.
The invention carries out acid treatment on the polished gold,
according to the invention, the acid is preferably sulfuric acid; the acid treatment temperature is preferably 240-260 ℃; the time is preferably 5-20 s; more preferably 2-30 s; the acid concentration is greater than or equal to 92.5 percent industrial sulfuric acid
The process is to soak the product in hot sulfuric acid to remove surface grease and other foreign matters.
After the acid treatment, the invention is embedded and assembled by a holding die; the mold holding embedding assembly specifically comprises the following steps: assembling and welding the gold main body and the accessory; the accessories include necklaces, keepers or badges. The jewel and the gold product can be jointed and assembled by using tools such as pliers, clamps and the like.
The present invention is not limited to the specific parameters of the weld, as would be known to one skilled in the art.
And (5) carrying out die holding, embedding and assembling, and then polishing to obtain the product.
The polishing of the invention is preferably as follows: and manually polishing and brightening the parts requiring high brightness by using a tungsten pen and an agate knife.
The invention provides retro gold prepared by any one of the processes in the technical scheme.
FIG. 1 is a color effect of a common process gold; FIG. 2 shows the color effect of the ancient technological gold of the invention.
It can be seen that the ancient process gold color of the invention is slightly dark, and black is left at partial positions, so that the product lines are clearer, layered and chronologically.
The invention provides a gold antique process, which comprises the following steps: A) carrying out a mold holding procedure on the gold casting mold blank; B) electroplating black ruthenium on the gold subjected to die holding: taking ruthenium metal as an anode and gold to be plated as a cathode for electroplating; C) performing die-holding black removal and polishing on the electroplated gold; D) and performing acid treatment, mold-holding embedding assembly and grinding on the polished gold to obtain the product. The invention solves the problem that the gold cannot be oxidized and worn due to stable chemical property by matching the electroplating of black ruthenium with the specific die-holding black removing and polishing process. The effect is different from other common gold effect processes, the product of the process has slightly dark effect color, and black is left at partial positions, so that the lines of the product are clearer, layered and chronologically felt. The whole product is an ancient element, and the color and weight of the product are not affected basically.
In order to further explain the invention, the ancient process and ancient gold provided by the invention are described in detail below with reference to the examples.
Example 1
The method comprises the steps of adopting 99.9% gold casting blank, removing burrs and blank peaks of a product by using tools such as a file, abrasive paper, a sand needle, a laser welding machine and the like, finishing the shape, and then sequentially rubbing the surface of the product by using 400#, 800# and 1200# abrasive paper to be smooth. (as shown in figure 1) of the drawings,
electroplating black ruthenium on the gold subjected to die holding, as shown in fig. 2; plating ruthenium metal on the anode; the product to be plated is arranged at the cathode; the cathode and the anode are connected by electrolyte solution consisting of positive ions of plated metal ruthenium. The electroplating parameters are as follows: constant voltage of 1.5V and current of 0.5A/dm2The ruthenium content is 3g/L, the PH value is 0.6, the temperature is 25 ℃, the density of the metal liquid is 0.8g/cm3, and the electroplating time is 8 minutes; swinging the workpiece for 30-20 revolutions per second; after the power supply of direct current is applied, the metal of the anode is oxidized (loses electrons), and positive ions in the solution are reduced (get electrons) to atoms at the cathode and are accumulated on the surface layer of the cathode.
The black and the nails of the product to be polished are removed, the craftsman rubs off the black part by using 800-. As shown in fig. 3. Putting the product into a magnetic needle polishing machine, adding a special polishing cleaning solution for jewelry into the polishing machine to polish the convex part of the product to achieve the effect of forming contrast with the black part for 15 minutes;
soaking the product in hot sulfuric acid to remove surface oil and other foreign matters. The temperature was 250 ℃ and 5 seconds of soaking.
The process of welding together the body of the product with other accessories, including necklaces and placard assemblies. Some products comprise embedded gems, and the gems are jointed and assembled with gold products by using tools such as pliers, clamps and the like; the product has high brightness as required, and is polished manually by a tungsten steel pen and an agate knife. As shown in fig. 4.
As can be seen from fig. 4, the pseudo-classic gold ring prepared in the embodiment 1 of the invention is darker in color, has a historical sense, a chronological sense and a vicious sense after aging, wherein the black part can highlight lines and layers of a main body, so that the ring looks more textured and is lower in tone.
Example 2
The method comprises the steps of adopting 99.9% gold casting blank, removing burrs and blank peaks of a product by using tools such as a file, abrasive paper, a sand needle, a laser welding machine and the like, finishing the shape, and then sequentially rubbing the surface of the product by using 400#, 800# and 1200# abrasive paper to be smooth.
Electroplating black ruthenium on the gold subjected to die holding: plating ruthenium metal on the anode; the product to be plated is arranged at the cathode; the cathode and the anode are connected by electrolyte solution consisting of positive ions of plated metal ruthenium. The electroplating parameters are as follows: constant voltage of 1.5V and current of 1.5A/dm2The ruthenium content is 5g/L, the PH value is 1.1, the temperature is 35 ℃, the density of the metal liquid is 1.02/cm3, and the electroplating time is 12 minutes; swinging the workpiece for 30-20 revolutions per second; after the power supply of direct current is applied, the metal of the anode is oxidized (loses electrons), and positive ions in the solution are reduced (get electrons) to atoms at the cathode and are accumulated on the surface layer of the cathode.
The black and the nails of the product to be polished are removed, the craftsman rubs off the black part by using 800-. Putting the product into a magnetic needle polishing machine, adding a special polishing cleaning solution for jewelry into the polishing machine to polish the convex part of the product to achieve the effect of forming contrast with the black part for 15 minutes;
soaking the product in hot sulfuric acid to remove surface oil and other foreign matters. The temperature was 250 ℃ and the immersion was carried out for 7 seconds.
The process of welding together the body of the product with other accessories, including necklaces and placard assemblies. Some products comprise embedded gems, and the gems are jointed and assembled with gold products by using tools such as pliers, clamps and the like; the product has high brightness as required, and is polished manually by a tungsten steel pen and an agate knife.
The composite gold prepared in the embodiment 2 of the invention is shown in fig. 6, and the untreated common gold is shown in fig. 5, and the comparison shows that the antique gold prepared in the embodiment 2 of the invention is darker than the common gold in color, has historical sense, chronological sense and vicissitude sense after years of milling, wherein the black part can highlight the lines and the layering sense of the main body, and is more textured, and is lower in tone than the glittering and shining of the common gold.
Example 3
The method comprises the steps of adopting 99.9% gold casting blank, removing burrs and blank peaks of a product by using tools such as a file, abrasive paper, a sand needle, a laser welding machine and the like, finishing the shape, and then sequentially rubbing the surface of the product by using 400#, 800# and 1200# abrasive paper to be smooth.
Electroplating black ruthenium on the gold subjected to die holding: plating ruthenium metal on the anode; the product to be plated is arranged at the cathode; the cathode and the anode are connected by electrolyte solution consisting of positive ions of plated metal ruthenium. The electroplating parameters are as follows: constant voltage of 1.5V and current of 3.0A/dm2Ruthenium content of 7g/L, pH value of 0.8, temperature of 40 ℃ and molten metal density of 1.5/cm3Electroplating for 14 minutes; swinging the workpiece for 30-20 revolutions per second; after the power supply of direct current is applied, the metal of the anode is oxidized (loses electrons), and positive ions in the solution are reduced (get electrons) to atoms at the cathode and are accumulated on the surface layer of the cathode. The image after the plating is shown in fig. 7, and the whole appears black.
The black and the nails of the product to be polished are removed, the craftsman rubs off the black part by using 800-. Putting the product into a magnetic needle polishing machine, adding a special polishing cleaning solution for jewelry into the polishing machine to polish the convex part of the product to achieve the effect of forming contrast with the black part for 30 minutes;
soaking the product in hot sulfuric acid to remove surface oil and other foreign matters. The temperature is 250 ℃ and the soaking is carried out for 10 seconds.
The process of welding together the body of the product with other accessories, including necklaces and placard assemblies. Some products comprise embedded gems, and the gems are jointed and assembled with gold products by using tools such as pliers, clamps and the like; the product has high brightness as required, and is polished manually by a tungsten steel pen and an agate knife.
As shown in FIG. 8, the ancient golden color prepared in the embodiment 3 of the invention is darker, has a historical sense and a chronological sense, and has a vicissitude sense after years of milling, wherein the black part can highlight the lines and the layering sense of the main body, and the ancient golden color prepared in the embodiment 3 of the invention is more textured and lower.
Comparative example 1
The method comprises the steps of adopting 99.9% gold casting blank, removing burrs and blank peaks of a product by using tools such as a file, abrasive paper, a sand needle, a laser welding machine and the like, finishing the shape, and then sequentially rubbing the surface of the product by using 400#, 800# and 1200# abrasive paper to be smooth.
Electroplating black ruthenium on the gold subjected to die holding: plating ruthenium metal on the anode; the product to be plated is arranged at the cathode; the cathode and the anode are connected by electrolyte solution consisting of positive ions of plated metal ruthenium. The electroplating parameters are as follows: constant voltage of 11.5V and current of 5.5A/dm2The ruthenium content is 11g/L, the pH value is 3.5, the temperature is 35 ℃, and the density of the molten metal is 3.5/cm3Electroplating for 33 minutes; swinging the workpiece for 30-20 revolutions per second; after the power supply of direct current is applied, the metal of the anode is oxidized (loses electrons), and positive ions in the solution are reduced (get electrons) to atoms at the cathode and are accumulated on the surface layer of the cathode.
The black and the nails of the product to be polished are removed, the craftsman rubs off the black part by using 800-. Putting the product into a magnetic needle polishing machine, adding a special polishing cleaning solution for jewelry into the polishing machine to polish the convex part of the product to achieve the effect of forming contrast with the black part for 15 minutes;
soaking the product in hot sulfuric acid to remove surface oil and other foreign matters. The temperature was 250 ℃ and the immersion was carried out for 7 seconds.
The process of welding together the body of the product with other accessories, including necklaces and placard assemblies. Some products comprise embedded gems, and the gems are jointed and assembled with gold products by using tools such as pliers, clamps and the like; the product has high brightness as required, and is polished manually by a tungsten steel pen and an agate knife.
The obtained product has light color, and the plating layer is thicker due to different electroplating parameters, so that the color of the gold main body is influenced, and the color is poor.
Comparative example 2
The electroplating rhodium principle is similar to the electroplating black and ruthenium principle, but the electroplating black and ruthenium antiquing effect is more obvious than the electroplating rhodium effect, the black color of the effect of electroplating rhodium in the color is brighter, the surface of the product is too smooth and has no texture, the electroplating black and ruthenium color effect is black and matte texture, the antiquing effect of the surface of the product is more prominent, and huge contrast is formed between the electroplating black and ruthenium color effect and the polished bright surface of the product, so that the antiquing requirement can be met.
Black rhodium electroplating process
1) Electroplating black rhodium) mainly comprises a metal element ruthenium, wherein the element symbol RH is black, and the electroplating black rhodium mainly forms a metal coating on the surface of a product to be black, and has the function of adding color to the gold product to make the three-dimensional layering of the product more obvious. The process of ruthenium plating is essentially as follows:
coating rhodium metal on anode
The product to be plated is on the cathode
The cathode and the anode are connected by electrolyte solution consisting of positive ions of plated metal rhodium
After the power supply of direct current is applied, the metal of the anode is oxidized (loses electrons), and positive ions in the solution are reduced (get electrons) to atoms at the cathode and are accumulated on the surface layer of the cathode.
The appearance of the electroplated object after electroplating is related to the current magnitude.
Constant pressure is 1.8-3.0V;
the current is 1.0-1.5A/dm2；
The rhodium content is 2.0 g/L;
the pH value is less than 1;
the temperature is 18-25 ℃;
the density of molten metal is 10.2g/cm3；
The electroplating time is about 6 to 30 minutes;
the workpiece swings for 30-20 revolutions per second.
The product is shown in FIG. 9, wherein a is an inverted mold blank, b is after electro rhodium, c is after black removal, and d is after polishing.
As can be seen from fig. 9, the rhodium plating process of comparative example 2 of the present invention is not very colored, is somewhat grayish, looks dirty, and is somewhat reflective, like the semi-finished old article, and is inferior in retro process.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An ancient technology of gold is characterized by comprising the following steps:
A) carrying out a mold holding procedure on the gold casting mold blank;
B) electroplating black ruthenium on the gold subjected to die holding: taking ruthenium metal as an anode and gold to be plated as a cathode for electroplating;
C) performing die-holding black removal and polishing on the electroplated gold;
D) and performing acid treatment, mold-holding embedding assembly and grinding on the polished gold to obtain the product.
2. The process according to claim 1, wherein step a) is in particular:
removing burrs and blank peaks of the gold casting mold blank, finishing the shape, and then sequentially rubbing the surface of the product with 400#, 800# and 1200# sandpaper to smooth.
3. The process according to claim 1, wherein the electroplating is in particular:
the electroplating voltage is 1-10V; the current is 0.3 to 5.0A/dm2The content of ruthenium is 2-10 g/L, the pH value is 0.5-2.5, the temperature is 25-44 ℃, and the density of an electrolyte solution consisting of positive ions of metal ruthenium is 0.8-2.5 g/cm3Electroplating time is 6-30 minutes, and workpiece sways every time30-20 turns per second.
4. The process as claimed in claim 1, wherein the die-cut blackening is performed by: and reserving a black line at the concave line and the seam, and rubbing off black parts at other places by using No. 800-1200 abrasive paper.
5. The process according to claim 1, characterized in that the polishing is in particular: polishing the raised part of the product by adopting polishing solution in a polishing machine, wherein the polishing solution is jewelry polishing cleaning solution; the polishing time is 5-60 min; the polishing machine is one of a magnetic needle polishing machine or a ball polishing machine.
6. The process of claim 1, wherein the acid is sulfuric acid; the acid treatment temperature is 240-260 ℃; the time is 5-20 s; the acid concentration is greater than or equal to 92.5% industrial sulfuric acid.
7. The process of claim 1, wherein the die-cut insert assembly is specifically: assembling and welding the gold main body and the accessory; the accessories include necklaces, keepers or badges.
8. The process according to claim 1, wherein the grinding is in particular: and manually polishing and brightening the parts requiring high brightness by using a tungsten pen and an agate knife.
9. The process of claim 1, wherein the gold ingot blank is 99.9% gold.
10. Ancient gold prepared by the process of any one of claims 1 to 9.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111560632A (en) * | 2020-05-29 | 2020-08-21 | 深圳市尚美金品有限公司 | Metal antiquing process and metal surface polishing equipment |
| CN112410773A (en) * | 2020-11-02 | 2021-02-26 | 山东恒银珠宝有限公司 | Gold antique finishing method and antique gold |
| CN113774435A (en) * | 2021-09-08 | 2021-12-10 | 周大福珠宝金行（深圳）有限公司 | Ancient technology for gold |
| WO2022077614A1 (en) * | 2020-10-13 | 2022-04-21 | 欣强电子清远有限公司 | Method for improving surface evenness of electroplated platinum, and polishing device used by method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319148A (en) * | 1999-08-03 | 2001-10-24 | 株式会社日矿材料 | Black ruthenium plating soluton |
| CN1729884A (en) * | 2005-08-25 | 2006-02-08 | 陈亿斌 | Colorful palau decorations and its manufacturing method |
| CN101255509A (en) * | 2008-04-02 | 2008-09-03 | 深圳市粤豪珠宝有限公司 | Production technique of chromatic gold ornaments |
| CN101675185A (en) * | 2007-03-28 | 2010-03-17 | 尤米科尔电镀技术有限公司 | Electrolyte and method for depositing decorative and technical layers of black ruthenium |
| CN101684565A (en) * | 2009-08-10 | 2010-03-31 | 成都宏明双新科技股份有限公司 | Black ruthenium plating process |
| ES2355283T3 (en) * | 2008-11-21 | 2011-03-24 | Umicore Galvanotechnik Gmbh | SEQUENCE OF LAYERS WITH CONTENT IN PRECIOUS METALS FOR DECORATIVE ITEMS. |
| CN104040033A (en) * | 2011-06-17 | 2014-09-10 | 优美科电镀技术有限公司 | Electrolyte and its use for the deposition of black ruthenium coatings and coatings obtained in this way |
| CN107183856A (en) * | 2017-06-26 | 2017-09-22 | 深圳市瑞麒珠宝首饰有限公司 | A kind of preparation method of high back flash light metal artificial diamond |
-
2019
- 2019-08-27 CN CN201910798383.4A patent/CN110965088A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319148A (en) * | 1999-08-03 | 2001-10-24 | 株式会社日矿材料 | Black ruthenium plating soluton |
| CN1729884A (en) * | 2005-08-25 | 2006-02-08 | 陈亿斌 | Colorful palau decorations and its manufacturing method |
| CN101675185A (en) * | 2007-03-28 | 2010-03-17 | 尤米科尔电镀技术有限公司 | Electrolyte and method for depositing decorative and technical layers of black ruthenium |
| CN101255509A (en) * | 2008-04-02 | 2008-09-03 | 深圳市粤豪珠宝有限公司 | Production technique of chromatic gold ornaments |
| ES2355283T3 (en) * | 2008-11-21 | 2011-03-24 | Umicore Galvanotechnik Gmbh | SEQUENCE OF LAYERS WITH CONTENT IN PRECIOUS METALS FOR DECORATIVE ITEMS. |
| CN102224280A (en) * | 2008-11-21 | 2011-10-19 | 尤米科尔电镀技术有限公司 | Noble metal-containing layer sequence for decorative articles |
| CN101684565A (en) * | 2009-08-10 | 2010-03-31 | 成都宏明双新科技股份有限公司 | Black ruthenium plating process |
| CN104040033A (en) * | 2011-06-17 | 2014-09-10 | 优美科电镀技术有限公司 | Electrolyte and its use for the deposition of black ruthenium coatings and coatings obtained in this way |
| CN107183856A (en) * | 2017-06-26 | 2017-09-22 | 深圳市瑞麒珠宝首饰有限公司 | A kind of preparation method of high back flash light metal artificial diamond |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111560632A (en) * | 2020-05-29 | 2020-08-21 | 深圳市尚美金品有限公司 | Metal antiquing process and metal surface polishing equipment |
| CN111560632B (en) * | 2020-05-29 | 2021-08-13 | 深圳市华乐珠宝首饰有限公司 | Metal antiquing process and metal surface polishing equipment |
| WO2022077614A1 (en) * | 2020-10-13 | 2022-04-21 | 欣强电子清远有限公司 | Method for improving surface evenness of electroplated platinum, and polishing device used by method |
| CN112410773A (en) * | 2020-11-02 | 2021-02-26 | 山东恒银珠宝有限公司 | Gold antique finishing method and antique gold |
| CN113774435A (en) * | 2021-09-08 | 2021-12-10 | 周大福珠宝金行（深圳）有限公司 | Ancient technology for gold |
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