Golden alloy production process

Abstract

The invention discloses a golden alloy production process, and relates to the technical field of alloy production, and the golden alloy production process comprises the following steps: S1, burdening; s2, smelting; s3, refining; s4, casting; and S5, processing. According to the golden alloy production process, the proportioned raw materials are put into a vacuum smelting furnace in batches to be smelted step by step, smelting of different metals is adapted by controlling the furnace temperature in stages, impurity substances of aluminum-containing liquid can be removed by adding a proper amount of silicon powder during refining processing, and smelting uniformity is achieved through stirring during refining; the top of the vacuum smelting furnace is connected with negative pressure air suction equipment for extracting toxic waste gas containing arsenic and lead, and meanwhile, chromium is smelted in the alloy, so that the alloy can be ensured to have fire resistance and high-temperature corrosion resistance at high temperature, and the produced golden alloy is ensured to have the characteristics of no toxicity, high-temperature corrosion resistance and high purity.

Description

Technical Field

[0001] The invention relates to the technical field of alloy production, in particular to a golden alloy production process. Background Art

[0002] Gold alloy is a metal alloy made of a mixture of various metal elements, including gold, copper, silver, nickel and zinc. The proportion of each material can be adjusted according to specific needs, and the different proportions make the color and physical properties of gold alloy different. Gold alloy is usually harder than pure gold and more wear-resistant, so it is widely used in the production of jewelry, watches and other precision instruments.

[0003] After the gold alloy is produced into a product, it is easy to be corroded in a high temperature environment and during actual use, and the processed gold alloy has high impurities, which can easily affect the use of the gold alloy. Summary of the invention

[0004] The object of the present invention is to provide a gold alloy production process to solve the problems raised by the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a gold alloy production process, comprising the following steps: S1. Ingredients: The ingredients are prepared according to the alloy ratio, including 53.51% copper, 0.006% nickel, 0.024% iron, 0.005% lead, 0.189% silicon, 0.003% chromium, 0.009% magnesium, 0.002% arsenic, 0.005% bismuth, 0.007% phosphorus, 0.014% silver, 0.031% cobalt, 0.573% aluminum, 0.006% sulfur, 0.001% boron, 0.008% carbon, 0.02% selenium, 0.002% antimony, 0.005% tin, and 45.57% zinc; S2. Melting: A vacuum melting furnace is used as the furnace body for melting the alloy, and mixed melting is performed by adding ingredients in batches; S3, refining: evenly cover the surface of the melt with well-proportioned silicon powder, so that silicon and molten aluminum solution form an alloy, improving the strength and corrosion resistance of aluminum; S4, casting: pouring the molten metal liquid into a mold, allowing the molten metal liquid to cool and solidify for casting; S5. Processing: The cast alloy is processed by cold rolling, milling, cutting, grinding and polishing to obtain a golden alloy product.

[0006] Preferably, the S2 further comprises the following steps: Step 1: Add boron, chromium, iron, cobalt and nickel respectively, pressurize the vacuum melting furnace, and control the melting temperature to 1490-2300℃; Step 2: Cool down the vacuum melting furnace, then add copper, silver, aluminum, antimony and magnesium into the vacuum melting furnace, and control the melting temperature to 700-1100℃; Step 3: After the above alloys are melted, the arsenic with a good ratio is placed in a vacuum melting furnace, and the melting temperature is controlled at 600-800°C. After the arsenic is melted, zinc, tin, bismuth, selenium and sulfur are added to continue melting; Step 4: After all the above alloys are melted, the well-proportioned lead and phosphorus in the form of white phosphorus are placed in a vacuum melting furnace.

[0007] Preferably, after the boron, chromium, iron, cobalt and nickel are smelted, carbon powder with a good proportion is covered on the surface of the melt to keep the alloy solution warm and allow the high temperature resistant boron and chromium to continue to melt.

[0008] Preferably, the refining temperature is controlled at 1150-1300° C., the refining time is 15 minutes, and during the refining process, a mixing and stirring device is used to fully stir the molten metal solution of the alloy.

[0009] Preferably, the top of the vacuum smelting furnace is connected to a pipeline, and a valve is installed on the pipeline. A negative pressure suction device is connected to the pipeline to extract toxic arsenic- and lead-containing waste gas.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the golden alloy production process puts the raw materials with good proportions into the vacuum melting furnace in batches for step-by-step melting, and controls the furnace temperature in stages to adapt to the melting of different metals. During the refining process, an appropriate amount of silicon powder is added to remove impurities in the aluminum-containing liquid, and the melting uniformity is achieved by stirring during the refining. A negative pressure suction device is connected to the top of the vacuum melting furnace to extract toxic arsenic-containing and lead-containing waste gases, and chromium elements are melted in the alloy at the same time, which can ensure that the alloy has fire resistance and high-temperature corrosion resistance at high temperatures, thereby ensuring that the produced golden alloy has the characteristics of non-toxicity, high-temperature corrosion resistance and high purity. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the process flow of the present invention. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] See also Figure 1The present invention provides a technical solution: a golden alloy production process, comprising the following steps: S1. Ingredients: The ingredients are prepared according to the alloy ratio, including 53.51% copper, 0.006% nickel, 0.024% iron, 0.005% lead, 0.189% silicon, 0.003% chromium, 0.009% magnesium, 0.002% arsenic, 0.005% bismuth, 0.007% phosphorus, 0.014% silver, 0.031% cobalt, 0.573% aluminum, 0.006% sulfur, 0.001% boron, 0.008% carbon, 0.02% selenium, 0.002% antimony, 0.005% tin, and 45.57% zinc; S2. Melting: A vacuum melting furnace is used as the furnace body for melting the alloy. Mixed melting is performed by adding ingredients in batches. The first step of melting is to add boron, chromium, iron, cobalt, and nickel respectively, and pressurize the vacuum melting furnace. At the same time, the melting temperature is controlled to be 1490-2300°C. After the melting of boron, chromium, iron, cobalt, and nickel is completed, carbon powder with a good ratio is covered on the surface of the melt to keep the alloy solution warm, so that the high-temperature resistant boron and chromium are continuously melted; The second step of smelting requires cooling the vacuum melting furnace, adding copper, silver, aluminum, antimony and magnesium into the vacuum melting furnace, and controlling the melting temperature to 700-1100°C; The third step of smelting requires placing the well-proportioned arsenic in a vacuum smelting furnace, while controlling the smelting temperature to 600-800°C. After the arsenic is smelted, zinc, tin, bismuth, selenium and sulfur are added to continue smelting; The fourth step of smelting requires that the lead and phosphorus in the form of white phosphorus with a good ratio be placed in a vacuum melting furnace for mixing, and a pipeline is connected at the top of the vacuum melting furnace, and a valve is installed on the pipeline, and a negative pressure suction device is connected to the pipeline to extract toxic arsenic and lead-containing waste gas; S3, refining: evenly cover the surface of the melt with silicon powder of good proportion, so that silicon and molten aluminum solution form an alloy, improve the strength and corrosion resistance of aluminum, and the refining temperature is controlled at 1150-1300℃, the refining time is 15 minutes, and the alloy molten metal solution is fully stirred by using a mixing and stirring device during the refining process; S4, casting: pouring the molten metal liquid into a mold, allowing the molten metal liquid to cool and solidify for casting; S5. Processing: The cast alloy is processed by cold rolling, milling, cutting, grinding and polishing to obtain a golden alloy product. The cooled golden alloy is rolled thin by a cold rolling machine, and then the rolled thin alloy product can be processed into a specific shape by a milling machine and cutting equipment. After that, the processed golden alloy product is surface treated by grinding and polishing to make the golden alloy product smoother and free of burrs.

[0014] In a specific implementation, multiple elements such as copper, nickel, iron, lead, silicon, chromium, magnesium, arsenic, bismuth, phosphorus, silver, cobalt, aluminum, sulfur, boron, carbon, selenium, antimony, tin and zinc are put into a vacuum melting furnace in batches for step-by-step melting. The vacuum melting furnace is then used to evacuate the arsenic to prevent oxidation and the generation of toxic arsenic compounds that overflow from the furnace body. In addition, an appropriate amount of silicon powder is added during the refining process to refine the aluminum liquid and remove impurities therein, thereby ensuring that the gold alloy can reduce impurities during melting. By connecting negative pressure suction equipment to the top of the vacuum melting furnace to extract toxic arsenic and lead-containing waste gases, the toxic vapor can be collected and processed during vacuum melting of various alloys. At the same time, chromium elements are melted in the alloy to ensure that the alloy has fire resistance and high temperature corrosion resistance at high temperatures.

[0015] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0016] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A golden alloy production process, characterized in that: The following steps are involved: S1. Ingredients: The ingredients are prepared according to the alloy ratio, including 53.51% copper, 0.006% nickel, 0.024% iron, 0.005% lead, 0.189% silicon, 0.003% chromium, 0.009% magnesium, 0.002% arsenic, 0.005% bismuth, 0.007% phosphorus, 0.014% silver, 0.031% cobalt, 0.573% aluminum, 0.006% sulfur, 0.001% boron, 0.008% carbon, 0.02% selenium, 0.002% antimony, 0.005% tin, and 45.57% zinc; S2. Melting: A vacuum melting furnace is used as the furnace body for melting the alloy, and mixed melting is performed by adding ingredients in batches; S3, refining: evenly cover the surface of the melt with well-proportioned silicon powder, so that silicon and molten aluminum solution form an alloy, improving the strength and corrosion resistance of aluminum; S4, casting: pouring the molten metal liquid into a mold, allowing the molten metal liquid to cool and solidify for casting; S5. Processing: The cast alloy is processed by cold rolling, milling, cutting, grinding and polishing to obtain a golden alloy product.

2. A gold alloy production process according to claim 1, characterized in that: The S2 further comprises the following steps: Step 1: Add boron, chromium, iron, cobalt and nickel respectively, pressurize the vacuum melting furnace, and control the melting temperature to 1490-2300℃; Step 2: Cool down the vacuum melting furnace, then add copper, silver, aluminum, antimony and magnesium into the vacuum melting furnace, and control the melting temperature to 700-1100℃; Step 3: After the above alloys are melted, the arsenic with a good ratio is placed in a vacuum melting furnace, and the melting temperature is controlled at 600-800°C. After the arsenic is melted, zinc, tin, bismuth, selenium and sulfur are added to continue melting; Step 4: After all the above alloys are melted, the well-proportioned lead and phosphorus in the form of white phosphorus are placed in a vacuum melting furnace.

3. A golden alloy production process according to claim 2, characterized in that: After the boron, chromium, iron, cobalt and nickel are smelted, the carbon powder with a good ratio is covered on the surface of the melt to keep the alloy solution warm and allow the high-temperature resistant boron and chromium to continue melting.

4. A gold alloy production process according to claim 1, characterized in that: The refining temperature is controlled at 1150-1300° C., the refining time is 15 minutes, and during the refining process, a mixing and stirring device is used to fully stir the molten metal solution of the alloy.

5. A gold alloy production process according to claim 1, characterized in that: The top of the vacuum smelting furnace is connected to a pipeline, and a valve is installed on the pipeline. A negative pressure suction device is connected to the pipeline to extract toxic arsenic- and lead-containing waste gas.

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