CN115522100A - Alloy for jewelry and jewelry comprising same - Google Patents
Alloy for jewelry and jewelry comprising same Download PDFInfo
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- CN115522100A CN115522100A CN202211209013.0A CN202211209013A CN115522100A CN 115522100 A CN115522100 A CN 115522100A CN 202211209013 A CN202211209013 A CN 202211209013A CN 115522100 A CN115522100 A CN 115522100A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
- A44C5/0084—Bracelets in the form of a ring, band or tube of rigid material
- A44C5/0092—Bracelets in the form of a ring, band or tube of rigid material essentially made from metal
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/06—Alloys containing less than 50% by weight of each constituent containing zinc
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/02—Alloys based on gold
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/14—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of noble metals or alloys based thereon
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- Mechanical Engineering (AREA)
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Abstract
The invention relates to the technical field of noble metal alloys, in particular to an alloy for jewelry and a jewelry containing the alloy. The alloy consists of the following components: 18 to 22 weight percent of nickel, 0.3 to 0.7 weight percent of iron, 11 to 15 weight percent of zinc, and the balance of copper and inevitable impurities. The alloy can be used as a joint coating material and is matched with a noble metal taking gold as a main component to prepare ornaments, so that the ductility and the elasticity are improved, and the gold alloy can obtain more elastic deformation capacity and can be processed into ornaments with more fine shapes. Compared with gold alloy prepared by adopting the traditional repaired mouth material, the product provided by the invention has lighter weight, better elastic effect, larger deformable amplitude and lower processing difficulty.
Description
Technical Field
The invention relates to the technical field of noble metal alloys, in particular to an alloy for jewelry and a jewelry containing the alloy.
Background
Gold for jewelry is usually expressed in K or color, 24K is called thousand pure gold or nine-nine gold, and the content is 99.99%.
Taking 18K gold as an example, common jewelry contains 75% of gold, which is called 18K. About 25% of a piece of 18K gold jewelry is metal such as Ni, cu, zn, ag, etc., and these other metals used to produce gold and gold are known in the jewelry industry as patches. The repaired mouth is closely related to the processability of the gold alloy.
The repaired mouth material in the jewelry industry of China mainly depends on import, because the production technology of some alloy repaired mouths is not solved yet. In addition, the repaired mouth adopted in the prior art has the problems of heavy weight and limited deformable range of products, and the gold alloy added with the repaired mouth has limited processing and application because the ductility and the plastic deformation capability are not ideal enough, so that the ornaments with higher requirements on elastic properties are difficult to prepare.
Disclosure of Invention
A first object of the present invention is to provide an alloy consisting of:
18 to 22 weight percent of nickel, 0.3 to 0.7 weight percent of iron, 11 to 15 weight percent of zinc, and the balance of copper and inevitable impurities.
A second object of the present invention is to provide a gold alloy comprising gold and the alloy as described above.
The third object of the present invention is to provide an ornament, at least a part of which is made of the gold alloy as described above.
A fourth object of the present invention is to provide a method for manufacturing a bracelet, including:
a) Taking a gold alloy as described above and casting into an elongated metal strip;
b) Drawing the metal strip into a noble metal wire after at least one wire pressing and at least one annealing process;
c) Winding the noble metal wire into a ring shape;
d) And (5) annealing and shaping.
The alloy can be used as a repaired mouth material and is matched with a noble metal taking gold as a main component to prepare ornaments so as to improve the ductility and the elasticity, so that the gold alloy obtains more elastic deformation capability and can be processed into ornaments with finer shapes. Compared with gold alloy prepared by adopting the traditional repaired mouth material, the product provided by the invention has lighter weight, better elastic effect, larger deformable amplitude and lower processing difficulty.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a test flow of test 1 according to an embodiment of the present invention;
fig. 2 is a schematic test flow diagram of test 2 according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the invention, one or more examples of which are described below. Each example is provided by way of explanation, not limitation, of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment, can be used on another embodiment to yield a still further embodiment.
Unless otherwise defined, all terms (including technical and scientific terms) used in disclosing the invention are to be interpreted as commonly understood by one of ordinary skill in the art to which this invention belongs. The following definitions serve to better understand the teachings of the present invention by way of further guidance. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As used herein, the terms "comprising," "including," and "comprising" are synonymous, inclusive or open-ended, and do not exclude additional, unrecited members, elements, or method steps.
In the present invention, the percentages refer to mass percentages unless otherwise specified.
The recitation of numerical ranges by endpoints herein includes all numbers and fractions subsumed within that range, as well as the recited endpoints.
The present invention relates to concentration values, which include fluctuations within a certain range. For example, it may fluctuate within a corresponding accuracy range. For example, 2%, may be allowed to fluctuate within 0.1%. For values that are larger or do not require more fine control, the meaning is also allowed to include greater fluctuations. For example, 100mM, may allow fluctuations within the range of. + -. 1%, + -2%, + -5%, etc.
In the present invention, the terms "plurality" and "a plurality" mean, unless otherwise specified, 2 or more in number.
In the present invention, the technical features described in the open type include a closed technical solution composed of the listed features, and also include an open technical solution including the listed features.
In the present invention, "preferably", "better" and "preferable" are only embodiments or examples with better description, and it should be understood that the scope of the present invention is not limited by them. In the present invention, "optionally", "optional" and "optional" refer to the presence or absence, i.e., to any one of two juxtapositions selected from "present" and "absent". If multiple optional parts appear in one technical scheme, if no special description exists, and no contradiction or mutual constraint relation exists, each optional part is independent.
The invention relates to an alloy, which consists of the following components:
18 to 22 weight percent of nickel, 0.3 to 0.7 weight percent of iron, 11 to 15 weight percent of zinc, and the balance of copper and inevitable impurities.
The alloy can be used as a joint coating material and matched with a noble metal taking gold as a main component to prepare ornaments, so that the ductility and the elasticity are improved.
In some embodiments, the alloy consists of:
19 to 21 weight percent of nickel, 0.4 to 0.6 weight percent of iron, 12 to 14 weight percent of zinc, and the balance of copper and inevitable impurities.
In some embodiments, the alloy consists of:
19.5 to 20.5 weight percent of nickel, 0.45 to 0.55 weight percent of iron, 12.5 to 13.5 weight percent of zinc, and the balance of copper and inevitable impurities.
Preferably, the alloy consists of the following components: 20wt% of nickel, 0.50wt% of iron, 12.8wt% of zinc, and the balance of copper and inevitable impurities.
Preferably, the alloy consists of the following components: 20.03wt% of nickel, 0.50wt% of iron, 12.81wt% of zinc, and the balance of copper and inevitable impurities.
The invention also relates to a gold alloy comprising gold and an alloy as described above.
In some embodiments, the gold is present in an amount of 33wt% to 80wt%, and the alloy is present in an amount of 20wt% to 67wt%.
In some embodiments, the gold is present in an amount of 75wt% to 76wt%, and the alloy is present in an amount of 24wt% to 25wt%.
According to a development of the invention, the gold content of the gold alloy may be 33 wt.% to 80 wt.%, for example 35 wt.%, 40 wt.%, 45 wt.%, 50 wt.%, 55 wt.%, 60 wt.%, 65 wt.%, 70 wt.%, 71 wt.%, 72 wt.%, 73 wt.%, 74 wt.%, 75 wt.%, 75.3 wt.%, 75.4 wt.%, 75.5 wt.%, 75.6 wt.%, 75.7 wt.%, 76 wt.%, 77 wt.%, 78 wt.%, 79 wt.%.
According to a development of the invention, the content of said alloy in the gold alloy may be 20wt% to 67wt%, such as 21wt%, 22wt%, 23wt%, 24wt%, 24.3wt%, 24.4wt%, 24.5wt%, 24.6wt%, 24.7wt%, 25wt%, 26wt%, 27wt%, 28wt%, 29wt%, 30wt%, 35wt%, 40wt%, 45wt%, 50wt%, 55wt%, 60wt%, 65wt%.
The gold alloy may also be doped or undoped with some other metal, preferably a noble metal, such as one or more of silver, platinum, zinc, lead, tin. When other metals are present, it is preferred that the other metals are present in an amount of no more than 10wt%, or no more than 5wt%, or no more than 4wt%, or no more than 3wt%, or no more than 2wt%, or no more than 1wt%, or no more than 0.5wt%, or no more than 0.1wt%.
According to a further aspect of the invention, it also relates to an item of jewellery, at least part of the material of which is a gold alloy as described above.
The ornament may also comprise other decorative materials, typically platinum, silver, precious stones, or alloys of other compositions than the gold alloys defined in the present invention.
Gemstones as defined herein are broad and include natural mineral crystals such as diamonds, crystals, emeralds, rubies, sapphires, and emeralds (alexandrites, cat's eyes) glauconite, and the like; also a few are natural monomineral aggregates, such as ono, opal. There are also a few organic materials, such as amber, pearl, coral, coal essence, which are also included in the broad term gem.
In the present invention, the "ornament" refers to all decorative articles, typically jewelry, home ornaments and the like. Preferably jewelry, such as ornaments worn on the head, such as hair pins, hairpin, earrings and the like; refers to the ornaments worn on the body, such as necklaces, brooches, bracelets, rings, foot rings, etc. Since the gold alloys provided by the present invention have good elastic deformability, in some preferred embodiments the ornament has a ring formed by the gold alloy surrounding it.
In the present invention, "ring" broadly refers to any geometric figure that is hollow, such as a polygonal ring, preferably a regular polygonal ring, more preferably a circular ring. The ring may be closed or may be notched, as long as it can be secured around the neck/wrist/ankle/finger when it is a neck ring, bracelet, foot ring or ring.
In some embodiments, the gold alloy is a solid or hollow noble metal wire.
The gold alloys provided by the invention can be used for processing thinner noble metal wires, while maintaining good elastic deformability, due to the particularly significantly improved processability. In some embodiments, the noble metal wire has an outer diameter of 0.5mm to 1mm, e.g., 0.6mm, 0.7mm, 0.8mm, 0.9mm.
The "loops" may be formed by the noble metal wire being wound around (a single turn in the same plane) or wound (one or more turns in an oblique angle) to form a loop having a thickness, in some embodiments, 1, 2, 3, 4, 5, 6 or more turns of the noble metal wire, preferably substantially parallel between each turn. In further embodiments, in which a continuous noble metal wire forms a structural unit, the article may comprise at least 2 such structural units, which may also be mechanically, preferably non-detachably, connected to one another at least one end, preferably by an end piece. In particular, they can be welded or glued to the end pieces.
In some embodiments, the ring is a (single-turn) circular ring (or ring segment) with a gap.
In some embodiments, the accessory is a bracelet. In the invention, the bracelet can be used with the bracelet.
Particularly, for the bracelet with a notch, the wearing mode usually needs to apply external force from the notch to increase the diameter of the ring, but the operation can easily cause the deformation of the bracelet, particularly for the bracelet prepared by the thin and precious metal wires, and the gold alloy provided by the invention can effectively solve the problem.
According to another aspect of the present invention, there is also provided a method of manufacturing a bracelet, comprising:
a) Obtaining a gold alloy as described above and casting into an elongated metal strip;
b) Drawing the metal strip into a noble metal wire after at least one wire pressing and at least one annealing process;
c) Winding the noble metal wire into a ring shape;
d) And (6) annealing and shaping.
The metal strip is an elongated shape, but is not limited to a cross section thereof, and is preferably an elongated strip having a substantially circular cross section.
In some embodiments, the metal strip is a round strip with a diameter of 10mm to 14 mm.
In some embodiments, the annealing temperature in step b) is 580 ℃ to 680 ℃, e.g., 600 ℃, 610 ℃, 620 ℃, 630 ℃, 640 ℃, 650 ℃, 660 ℃.
In some embodiments, step b) comprises:
b 1 ) Pressing the metal strip into a first square wire with the outer diameter of 2-3 mm, and annealing at 580-680 ℃ for 20-30 minutes;
b 2 ) B is to be 1 Pressing the obtained first square line into a second square line with the thickness of 1 mm-1.2 mm, and annealing at 580-680 ℃ for 20-30 minutes;
b 3 ) B is to 2 The second square wire obtained by the treatment is drawn into a round wire with the outer diameter of 0.5 mm-0.9 mm.
In some embodiments, step b 1 ) The annealing time of (2) was 21, 22, 23, 24, 25, 26, 27, 28, 29 minutes.
In some embodiments, the annealing temperature of step d) is 550 ℃ to 650 ℃ and the annealing time is 15 to 25 minutes.
The annealing temperature in step d) can also be selected from 560 ℃, 570 ℃,580 ℃, 590 ℃, 600 ℃, 610 ℃, 620 ℃, 630 ℃ and 640 ℃.
Embodiments of the present invention will be described in detail with reference to examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The experimental procedures for the conditions not specified in the following examples, preferably with reference to the guidelines given in the present invention, may also be performed according to the experimental manual or the conventional conditions in the art, and may also be performed according to other experimental procedures known in the art, or according to the conditions suggested by the manufacturer.
In the following specific examples, the measurement parameters relating to the components of the raw materials, if not specified otherwise, may be subject to slight deviations within the accuracy of the weighing. Temperature and time parameters are involved to allow for acceptable deviation of the instrument test accuracy or operational accuracy.
Example 1
The embodiment provides a preparation method of a gold bracelet.
The preparation process comprises the following steps:
(1) preparing gold: preparing a gold alloy containing 75.5% gold and 24.5% PLAST220 allowance;
the PLAST220 oral cavity repairing component is as follows: nickel (Ni) =20.03%, iron (Fe) =0.50%, copper (Cu) =67.12%, zinc (Zn) =12.81%;
(2) melt Jin Zhutiao: casting into 12mm round bars by a continuous casting machine;
(3) line pressing: pressing the 12mm round bar into a 2.6mm square line;
(4) annealing: putting the square wire into a middle section annealing furnace for annealing, wherein the annealing temperature is 630 ℃, and the annealing time is 25 minutes;
(5) line pressing: pressing the 2.6mm square wire into a 1.1mm square wire;
(6) and (3) annealing: putting the square wire into a middle section annealing furnace for annealing, wherein the annealing temperature is 630 ℃, and the annealing time is 25 minutes;
(7) and (3) wire drawing: drawing a 1.1mm square wire into a 0.7mm round wire by using a wire drawing machine;
(8) winding: winding a 0.7mm round wire on the hand ring rod for fixing;
(9) annealing: and (4) putting the wound bracelet into an annealing furnace for annealing, wherein the annealing temperature is 600 ℃, and the annealing time is 20 minutes to finish the shaping.
Example 2
The embodiment provides a preparation method of a gold bracelet.
The preparation process comprises the following steps:
(1) preparing gold: preparing a gold alloy containing 75.5% gold and 24.5% PLAST220 allowance;
the PLAST220 oral patch comprises the following components: nickel (Ni) =18.44%, iron (Fe) =0.65%, copper (Cu) =66.71%, zinc (Zn) =14.20%;
(2) melt Jin Zhutiao: casting into 13mm round bars by a continuous casting machine;
(3) line pressing: pressing 13mm round bars into 3mm square lines;
(4) annealing: putting the square wire into a middle section annealing furnace for annealing, wherein the annealing temperature is 580 ℃, and the annealing time is 30 minutes;
(5) line pressing: pressing the 2.6mm square wire into a 1.1mm square wire;
(6) annealing: putting the square wire into a middle section annealing furnace for annealing, wherein the annealing temperature is 580 ℃, and the annealing time is 30 minutes;
(7) and (3) wire pulling: drawing a 1.1mm square wire into a 1mm round wire by using a wire drawing machine;
(8) winding: winding a 1mm round wire on the hand ring rod for fixing;
(9) annealing: and (4) putting the wound bracelet into an annealing furnace for annealing, wherein the annealing temperature is 550 ℃, and the annealing time is 25 minutes to finish the shaping.
Example 3
The embodiment provides a preparation method of a gold bracelet.
The manufacturing process comprises the following steps:
(1) preparing gold: preparing a gold alloy comprising 70% gold and 30% PLAST220 as a patch;
the PLAST220 oral patch comprises the following components: nickel (Ni) =21.63%, iron (Fe) =0.33%, copper (Cu) =66.57%, zinc (Zn) =11.47%;
(2) melt Jin Zhutiao: casting into 12mm round bars by a continuous casting machine;
(3) line pressing: pressing the 12mm round bar into a 2.3mm square line;
(4) annealing: putting the square wire into a middle section annealing furnace for annealing, wherein the annealing temperature is 680 ℃, and the annealing time is 20 minutes;
(5) line pressing: pressing the 2.6mm square wire into a 1.1mm square wire;
(6) annealing: putting the square wire into a middle section annealing furnace for annealing, wherein the annealing temperature is 680 ℃, and the annealing time is 30 minutes;
(7) and (3) wire pulling: drawing a 1.1mm square wire into a 0.7mm round wire by using a wire drawing machine;
(8) winding: winding a 0.7mm round wire on the hand ring rod for fixing;
(9) and (3) annealing: and (4) putting the wound bracelet into an annealing furnace for annealing, wherein the annealing temperature is 650 ℃, and the annealing time is 15 minutes to finish the shaping.
Example 4
The embodiment provides a preparation method of a gold bracelet.
The preparation process comprises the following steps:
(1) preparing gold: preparing a gold alloy containing 75.5% gold and 24.5% PLAST220 allowance;
the PLAST220 oral cavity repairing component is as follows: nickel (Ni) =18.44%, iron (Fe) =0.65%, copper (Cu) =66.71%, zinc (Zn) =14.20%;
(2) melt Jin Zhutiao: the continuous casting machine casts the sheet material into a sheet material with the thickness of 4mm and the width of 32 mm;
(3) line pressing: tabletting the 4mm thick 32mm wide sheet into 0.2mm thick 32mm wide cut pieces by a tabletting machine;
(4) annealing: a sheet with the thickness of 0.2mm and the width of 3.1mm is put into a middle section annealing furnace for annealing, the annealing temperature is 620 ℃, and the annealing time is 6 minutes;
(5) winding a pipe: a sheet with the thickness of 0.2mm and the width of 3.1mm passes through a line eye with the thickness of 1mm, and then a hollow pipe with the thickness of 1mm is wound on a hand ring rod by a hand ring forming machine for forming;
(6) annealing: and (4) putting the wound bracelet into an annealing furnace for annealing at the annealing temperature of 600 ℃ for 20 minutes, and finishing the shaping.
Experimental example 1
Sample description:
sample a: the pipe diameter of the hollow pipe bracelet prepared in the embodiment 4 is 1mm, the diameter of the bracelet is 56mm, and the opening is 1cm;
sample B: example 2 solid elastic thread bracelet prepared in 1mm diameter, 56mm diameter and 1cm opening
Test 1:
the two bracelets are subjected to left-right opening and closing tests by using equipment, as shown in figure 1, two ends of a long shaft of a sample bracelet are fixed at a position (A in figure 1) of a test instrument (Instron 2344 series 1000N, universal testing machine), a distance a is set to stretch the sample (maximum opening and closing distance: 35mm opening and closing times: 200 times), and if the sample can not be restored to an original shape just under the distance a (C in figure 1), a is recorded as the limit displacement of the sample.
The test results are: the ultimate displacement of sample B was 47.8mm and the ultimate displacement of sample A was 33.6mm.
And (3) testing 2:
as shown in fig. 2, a in fig. 2 is a sample state, the bracelet is opened and closed longitudinally (front and back, B in fig. 2) and transversely (left and right, C in fig. 2) by using both hands, and after the bracelet is fixed, a line is taken and placed in the middle of the bracelet, and a triangle is formed by the opening and closing distance of the bracelet, and if the opening and closing distance of the bracelet is D and the line length is L, the opening and closing angle at this time can be obtained by using the sine theorem (D in fig. 2). The experimental results show that: under the transverse limit spacing, the limit of the elastic hand ring is opened and closed to 82 degrees, and the limit of the hollow tube hand ring is opened and closed to 78 degrees; under the longitudinal limit interval, the limit of the elastic hand ring is opened to 158 degrees, and the limit of the hollow tube hand ring is opened to 156 degrees.
Experimental example 2
The conventional alloy materials were compared and the elastic deformation ability thereof was examined by the same method as in experimental example 1.
Data on the alloys used in the comparative examples
Gold alloy was obtained by using a commercially available H-889H patch, and the same gold and patch doping ratios as in example 1, and the content of main metals other than gold in the gold alloy: 0.01 per mill of chromium (Cr), 0.01 per mill of gold (Au), 0.02 per mill of iron (Fe), 36.72 per mill of copper (Cu), 130.91 per mill of zinc (Zn), 4.71 per mill of indium (In) and 827.30 per mill of silver (Ag).
Experimental tests of different alloys in the same production process flow:
sample description:
sample a: example 1 elastic thread, thread diameter 0.7mm, bracelet diameter 56mm, opening 1cm
Sample B: the comparative example adopts the elastic wire prepared by the conventional method, the wire diameter is 0.7mm, the diameter of the bracelet is 56mm, and the opening is 1cm.
Test 1:
open and shut the test about utilizing equipment to carry out two bracelets, sample A ultimate displacement is 50.2mm, and sample B ultimate displacement is 30.4mm.
And (3) testing 2:
and testing the opening and closing angle by using sine theorem. The experimental results show that: at the transverse limit separation, the sample a limit opens up to 158 °, sample B to 77 °; at the longitudinal limit separation, the sample a limit opening is 142 ° and the sample B is 66 °.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims, and the description and the drawings can be used for explaining the contents of the claims.
Claims (16)
1. An alloy consisting of the following components:
18 to 22 weight percent of nickel, 0.3 to 0.7 weight percent of iron, 11 to 15 weight percent of zinc, and the balance of copper and inevitable impurities.
2. The alloy of claim 1, consisting of:
19 to 21 weight percent of nickel, 0.4 to 0.6 weight percent of iron, 12 to 14 weight percent of zinc, and the balance of copper and inevitable impurities.
3. The alloy of claim 1, consisting of:
19.5 to 20.5 weight percent of nickel, 0.45 to 0.55 weight percent of iron, 12.5 to 13.5 weight percent of zinc, and the balance of copper and inevitable impurities.
4. A gold alloy comprising gold and the alloy of any one of claims 1 to 3.
5. The gold alloy according to claim 4, wherein the gold content is 33 to 80wt%, and the alloy content is 20 to 67wt%.
6. The gold alloy according to claim 5, wherein the gold content is 75-76 wt% and the alloy content is 24-25 wt%.
7. An ornament wherein at least a part of the material is the gold alloy according to any one of claims 4 to 6.
8. The article of claim 7 having a ring formed from the gold alloy around it.
9. The article of claim 8, the gold alloy being a solid or hollow precious metal wire.
10. The ornamental article according to claim 9, wherein the noble metal wire has an outer diameter of 0.5mm to 1mm.
11. The article of any of claims 7-10, wherein the ring is a circular ring having a gap.
12. The ornament according to any one of claims 7 to 10, which is a bracelet.
13. The preparation method of bracelet includes:
a) Obtaining a gold alloy according to any one of claims 4 to 6 and casting the gold alloy into an elongated metal strip;
b) Drawing the metal strip into a noble metal wire after at least one wire pressing and at least one annealing process treatment;
c) Winding the noble metal wire into a ring shape;
d) And (6) annealing and shaping.
14. The method for manufacturing a bracelet according to claim 13, wherein the metal strip is a round strip with a diameter of 10mm to 14 mm.
15. Method for preparing a bracelet according to claim 14, step b) comprising:
b 1 ) Pressing the metal strip into a first square wire with the outer diameter of 2-3 mm, and annealing at 580-680 ℃ for 20-30 minutes;
b 2 ) B is to 1 Pressing the obtained first square line into a second square line with the thickness of 1 mm-1.2 mm, and annealing at 580-680 ℃ for 20-30 minutes;
b 3 ) B is to 2 The second square wire obtained by the treatment is drawn into a round wire with the outer diameter of 0.5 mm-0.9 mm.
16. The method for manufacturing a bracelet according to any one of claims 13 to 15, wherein the annealing temperature in step d) is 550 ℃ to 650 ℃ and the annealing time is 15 to 25 minutes.
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| CN202211209013.0A CN115522100B (en) | 2022-09-30 | 2022-09-30 | Alloy for jewelry and jewelry comprising same |
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| CN202211209013.0A CN115522100B (en) | 2022-09-30 | 2022-09-30 | Alloy for jewelry and jewelry comprising same |
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| CN115522100B CN115522100B (en) | 2023-06-27 |
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| CN101736177A (en) * | 2010-01-19 | 2010-06-16 | 深圳市星光达珠宝首饰实业有限公司 | Material formula of 18K gold bullet and gold bracelet and preparation process of 18K gold bullet and gold bracelet |
| CN101775519A (en) * | 2010-01-19 | 2010-07-14 | 深圳市星光达珠宝首饰实业有限公司 | Noble metal jewelry formula |
| KR20120082700A (en) * | 2011-01-14 | 2012-07-24 | 충남대학교산학협력단 | Clad coin and a manufacturing method thereof |
| CN105483499A (en) * | 2015-12-09 | 2016-04-13 | 深圳市甘露珠宝首饰有限公司 | Joint coating material used for manufacturing metal ornaments and metal ornament material |
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2022
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736177A (en) * | 2010-01-19 | 2010-06-16 | 深圳市星光达珠宝首饰实业有限公司 | Material formula of 18K gold bullet and gold bracelet and preparation process of 18K gold bullet and gold bracelet |
| CN101775519A (en) * | 2010-01-19 | 2010-07-14 | 深圳市星光达珠宝首饰实业有限公司 | Noble metal jewelry formula |
| KR20120082700A (en) * | 2011-01-14 | 2012-07-24 | 충남대학교산학협력단 | Clad coin and a manufacturing method thereof |
| CN105483499A (en) * | 2015-12-09 | 2016-04-13 | 深圳市甘露珠宝首饰有限公司 | Joint coating material used for manufacturing metal ornaments and metal ornament material |
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