Process for manufacturing a round tube type jewelry

Abstract

The application discloses a manufacturing process of a round pipe type jewelry and relates to the technical field of the jewelry. The manufacturing process comprises the following steps: mixing gold powder and aqua regia in a container according to a proportion, dissolving the gold powder, and starting a stirring device; heating the container during the stirring process, and adding HNO3 into the container during the heating process. The manufacturing process of the round pipe type jewelry can change the stress distribution of the round pipe type jewelry at the joint between two ends by the multi-section splicing structure with different sizes of cross sections, thereby improving the strength of the round pipe type jewelry, and the shape with the spacing between the two sides of the middle part being greater than the spacing between the two sides of the end part can be set as an irregular sphere or a solid structure such as a rhombic spheroid, an ellipsoid or the like. On the one hand, compared with other embodiments, the surface of the bracelet body is round, the edges and corners are reduced, and the wearing experience of a user is improved.

Description

Technical Field

[0001] This invention belongs to the field of jewelry, specifically, it relates to a manufacturing process for a cylindrical jewelry piece. Background Technology

[0002] Traditional jewelry consists of ring-shaped pieces made of cylindrical tubes of equal diameter, such as bracelets and anklets. These pieces are usually made of gold, but because gold is relatively soft, it is prone to deformation during use.

[0003] In view of this, the present invention is proposed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a manufacturing process for round tube-shaped jewelry.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0006] A manufacturing process for a cylindrical jewelry piece includes the following steps:

[0007] Step 1: Mix gold powder and aqua regia in a container according to the specified ratio to dissolve the gold powder, and start the stirring device; the ratio of gold powder to aqua regia is 1:2-4; then heat the container while stirring, and add HNO3 during the heating process; the heating temperature is 80-90℃, and the heating time is 4-7 hours. During the addition of HNO3, yellow smoke will be emitted. When no more yellow smoke is emitted from the container, stop adding HNO3; observe the gold powder. After the gold powder is completely mixed with the solution and reacted, filter and process it to obtain gold ingots; when the gold powder and solution are completely mixed, add H2O to dilute it, and then add H2C2O4. When the solution turns light yellow, the reaction of the solution is complete.

[0008] The processing steps include:

[0009] First, allow the reaction solution to stand and precipitate, then perform solid-liquid separation;

[0010] The remaining solids were then repeatedly washed with hot distilled water, and HNO3 was used for partial washing during the washing process.

[0011] After washing, it can be melted and shaped using high temperature.

[0012] Step 2: Melt the gold ingot at high temperature, and pour the molten material into a mold for cooling and shaping; repeatedly press the cooled gold ingot through a sheet press to obtain gold sheets; weld the gold sheets and form them into spring shapes through a tube drawing and forming machine; cut the spring-shaped material into multiple segments; first, adjust the round opening of the spring-shaped material, and then cut it into arc-shaped segments.

[0013] The welding process includes the following steps:

[0014] S01: Roll up the extruded raw material sheet;

[0015] S02: The two sides of the rolled-up ends are initially welded using a welding machine;

[0016] S03: Clamp the first welded end with a pipe pulling machine and pull the pipe;

[0017] S04: During the pipe pulling process, start the welding machine to perform welding work simultaneously;

[0018] Step 3: Heat and bend the cut segmented material, and trim the ends of the transition section to form a transition section; arrange at least two different specifications of segmented material in an alternating ring, with a transition section between adjacent segments, and perform preliminary welding to obtain a cylindrical jewelry piece; wherein the transition section can be any one of L-shape, V-shape, or U-shape; the transition section has a first end and a second end, with the first end being longer than the second end, and the first end and the second end being connected to the segmented material on both sides respectively; wherein the differences between the different specifications include the length, cross-sectional diameter, and shape of the segment, and the segment can be any one or more of the following: an arc-shaped cylindrical structure, an ellipsoidal structure, or a structure with a width in the middle greater than the width at both ends;

[0019] Step 4: Perform secondary welding on the initially welded cylindrical jewelry and add at least one reinforcing rib between adjacent sections; grind, polish, and straighten the cylindrical jewelry after secondary welding; the reinforcing rib is set at the connection between adjacent two segmented structures and is located on the inner wall of the bracelet; during the secondary welding process, decorative items to enhance the appearance of the jewelry can also be welded onto the cylindrical jewelry.

[0020] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0021] The manufacturing process of the cylindrical jewelry proposed in this invention utilizes a multi-segment splicing structure with different cross-sectional sizes. This allows for changes in the stress distribution at the joints between the two ends, thereby increasing the strength of the cylindrical jewelry. Furthermore, the shape, where the distance between the two sides of the middle section is greater than the distance between the two sides of the ends, can be designed as an irregular sphere or three-dimensional structure such as a rhombus or ellipsoid. On one hand, compared to other embodiments, this makes the surface of the bracelet body smoother, reduces sharp edges, and enhances the user's wearing experience. On the other hand, it enables each segment to reduce stress concentration, thus increasing the strength of the jewelry body. The reinforcing ribs at the joints between two segments connect and fix the joints between adjacent segments, providing support and reinforcement, thereby increasing the strength of the cylindrical jewelry and reducing deformation.

[0022] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0023] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0024] Figure 1 This is a process flow diagram of the present invention.

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] The invention will now be described in further detail with reference to the accompanying drawings.

[0027] Example 1: Please refer to Figure 1 As shown, this embodiment provides a manufacturing process for a cylindrical jewelry piece, including the following steps:

[0028] Step 1: Mix gold powder and aqua regia in a container according to the specified ratio to dissolve the gold powder, and start the stirring device; the ratio of gold powder to aqua regia is 1:2-4; then heat the container while stirring, and add HNO3 during the heating process; the heating temperature is 80-90℃, and the heating time is 4-7 hours. During the addition of HNO3, yellow smoke will be emitted. When no more yellow smoke is emitted from the container, stop adding HNO3; observe the gold powder. After the gold powder is completely mixed with the solution and reacted, filter and process it to obtain gold ingots; when the gold powder and solution are completely mixed, add H2O to dilute it, and then add H2C2O4. When the solution turns light yellow, the reaction of the solution is complete.

[0029] The processing steps include:

[0030] First, allow the reaction solution to stand and precipitate, then perform solid-liquid separation;

[0031] The remaining solids were then repeatedly washed with hot distilled water, and HNO3 was used for partial washing during the washing process.

[0032] After washing, it can be melted and shaped using high temperature.

[0033] Step 2: Melt the gold ingot at high temperature, and pour the molten material into a mold for cooling and shaping; repeatedly press the cooled gold ingot through a sheet press to obtain gold sheets; weld the gold sheets and form them into spring shapes through a tube drawing and forming machine; cut the spring-shaped material into multiple segments; first, adjust the round opening of the spring-shaped material, and then cut it into arc-shaped segments.

[0034] The welding process includes the following steps:

[0035] S01: Roll up the extruded raw material sheet;

[0036] S02: The two sides of the rolled-up ends are initially welded using a welding machine;

[0037] S03: Clamp the first welded end with a pipe pulling machine and pull the pipe;

[0038] S04: During the pipe pulling process, start the welding machine to perform welding work simultaneously;

[0039] Step 3: Heat and bend the cut segmented material, and trim the ends of the transition section to form a transition section; arrange at least two different specifications of segmented material in an alternating ring, with a transition section between adjacent segments, and perform preliminary welding to obtain a cylindrical jewelry piece; wherein the transition section can be any one of L-shape, V-shape, or U-shape; the transition section has a first end and a second end, with the first end being longer than the second end, and the first end and the second end being connected to the segmented material on both sides respectively; wherein the differences between the different specifications include the length, cross-sectional diameter, and shape of the segment, and the segment can be any one or more of the following: an arc-shaped cylindrical structure, an ellipsoidal structure, or a structure with a width in the middle greater than the width at both ends;

[0040] Step 4: Perform secondary welding on the initially welded cylindrical jewelry and add at least one reinforcing rib between adjacent sections; grind, polish, and straighten the cylindrical jewelry after secondary welding; the reinforcing rib is set at the connection between adjacent two segmented structures and is located on the inner wall of the bracelet; during the secondary welding process, decorative items to enhance the appearance of the jewelry can also be welded onto the cylindrical jewelry.

[0041] Example 2: After the above process steps are completed, washing wastewater and separation liquid will be generated, which need to be collected and recycled. The recycling steps include the following:

[0042] Add a saturated oxalic acid solution to the recovery liquid and let it stand.

[0043] After filtering and allowing the recovered liquid to stand and separate, crude gold powder is obtained, which can be used in step one of Example 1.

[0044] Zinc is added to the separated filtrate for displacement, and then filtered, washed, and dried to obtain platinum concentrate.

[0045] The settling time in this embodiment is 9-12 hours.

[0046] Example 3: When welding multiple sections of gold, manual welding can also be used, including the following:

[0047] 1) Align the two gold semi-finished workpieces;

[0048] 2) Adjust the flame temperature of the welding tool to a range of 900-1100℃;

[0049] 3) Preheat the workpiece to be welded with the flame of the welding tool for 1-5 seconds;

[0050] 4) Integrate the two workpieces to be welded and use a flame to weld them intermittently for 1-3 seconds to melt and connect them.

[0051] Specifically: Through the above steps, the jewelry to be joined is used as the base. The welding torch is used to preheat, heat, melt and weld the parts to be welded, so that the semi-finished jewelry workpiece is naturally welded into a whole and no auxiliary solder is needed in the welding process.

[0052] The welding tools can be either oxy-fuel welding torches or water welding torches.

[0053] Example 3.1, when welding thin-walled cylindrical jewelry:

[0054] 1. Align the two semi-finished gold workpieces;

[0055] 2. Adjust the flame temperature of the welding tool to a range of 900°C;

[0056] 3. Preheat the workpiece to be welded with the flame of the welding tool for 2 seconds;

[0057] 4. Integrate the two workpieces to be welded and weld them with a flame intermittently for 1 second, so that the workpieces melt and connect.

[0058] Example 3.2, when welding thin-walled cylindrical jewelry:

[0059] 1. Align the two semi-finished gold workpieces;

[0060] 2. Adjust the flame temperature of the welding tool to a range of 1000℃;

[0061] 3. Preheat the workpiece to be welded with the flame of the welding tool for 1 second;

[0062] 4. Integrate the two workpieces to be welded and weld them with a flame intermittently for 1 second, so that the workpieces melt and connect.

[0063] Example 3.3, when welding thick-walled cylindrical jewelry:

[0064] 1. Align the two semi-finished gold workpieces;

[0065] 2. Adjust the flame temperature of the welding tool to a range of 1100℃;

[0066] 3. Preheat the workpiece to be welded with the flame of the welding tool for 3 seconds;

[0067] 4. Integrate the two workpieces to be welded and weld them with a flame intermittently for 2 seconds to melt and connect them.

[0068] Example 3.4, when welding thick-walled cylindrical jewelry:

[0069] 1. Align the two semi-finished gold workpieces;

[0070] 2. Adjust the flame temperature of the welding tool to a range of 1100℃;

[0071] 3. Preheat the workpiece to be welded with the flame of the welding tool for 5 seconds;

[0072] 4. Integrate the two workpieces to be welded and weld them with a flame intermittently for 1 second, so that the workpieces melt and connect.

[0073] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A manufacturing process for a cylindrical jewelry piece, characterized in that, Includes the following steps: Step 1: Mix gold powder and aqua regia in a container according to the specified ratio to dissolve the gold powder, and start the stirring device; then heat the container while stirring, and add HNO3 to the container during the heating process; observe the gold powder, and after the gold powder is completely mixed with the solution and reacted, filter and process it to obtain gold ingots; Step 2: Melt the gold ingot at high temperature, and pour the molten material into a mold for cooling and shaping; repeatedly press the cooled gold ingot through a sheet press to obtain gold sheets; weld the gold sheets and form them into spring shapes through a tube drawing and forming machine; cut the spring-shaped material into multiple segments; Step 3: Heat and bend the cut segmented material, and trim the two ends of the transition section; arrange at least two different sizes of segmented material in an alternating ring, and set a transition section between adjacent segments, and perform preliminary welding to obtain a cylindrical jewelry; wherein, the transition section can be any one of L-shape, V-shape, or U-shape; the transition section has a first end and a second end, the length of the first end of the transition section is greater than the length of the second end, and the first end and the second end are respectively connected to the segmented material on both sides; Step 4: Perform a second welding on the initially welded cylindrical jewelry, and add at least one reinforcing rib between adjacent sections; grind, polish, and straighten the cylindrical jewelry after the second welding is completed; In step one, the ratio of gold powder to aqua regia is 1:2-4; In step one, the heating temperature is 80-90℃ and the heating time is 4-7 hours. During the process of adding HNO3, yellow smoke will be emitted. When no more yellow smoke is emitted from the container, the addition of HNO3 can be stopped. In step one, when the gold powder and solution are completely mixed, H2O is added for dilution, and then H2C2O4 is added. When the solution turns light yellow, the reaction of the solution is complete. In step one, the processing includes: First, allow the reaction solution to stand and precipitate, then perform solid-liquid separation; The remaining solids were then repeatedly washed with hot distilled water, and HNO3 was used for partial washing during the washing process. After washing, it can be melted and shaped using high temperature. Step two also includes the following steps: S01: Roll up the extruded gold sheet; S02: The two sides of the rolled-up ends are initially welded using a welding machine; S03: Clamp the first welded end using a tube forming machine and pull the tube; S04: During the pipe drawing process, the welding work of the weld seam of the rolled round pipe is carried out simultaneously; In step two, the spring-shaped raw material is first adjusted to have a round opening, and then it is cut into arc-shaped segments. In step three, the differences between the different specifications include the length, cross-sectional diameter, and shape of the segmented material; The segmented material can be any one or more of the following: an arc-shaped circular tube structure, an ellipsoidal structure, or a structure whose width in the middle is greater than the width at both ends; In step four, the reinforcing ribs are set at the connection between two adjacent segments of material and are located on the inner wall of the cylindrical jewelry. During the secondary welding process, decorative items to enhance the appearance of the jewelry can also be welded onto the cylindrical jewelry.

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