CN110129593B - Method for preparing alloy - Google Patents
Method for preparing alloy Download PDFInfo
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- CN110129593B CN110129593B CN201910313081.3A CN201910313081A CN110129593B CN 110129593 B CN110129593 B CN 110129593B CN 201910313081 A CN201910313081 A CN 201910313081A CN 110129593 B CN110129593 B CN 110129593B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C11/00—Alloys based on lead
- C22C11/06—Alloys based on lead with tin as the next major constituent
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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
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Abstract
The invention discloses a method for preparing alloy, which comprises the following steps: adding the lead-tin alloy into a smelting furnace, heating the temperature in the smelting furnace to 600-700 ℃, and mixing and stirring the lead-tin alloy in real time in the heating process; after heating for 5-9min, controlling the mixing and stirring speed at 80-120 r/min, then adding copper chloride into the mixture in the stirring process, continuously mixing and stirring for 2 hours to obtain molten metal, and casting and molding the molten metal to obtain the alloy; the obtained alloy is tested for the internal components by a spectrometer, the copper content in the alloy is controlled between 0.08 percent and 0.12 percent, and then whether the copper content meets the requirements or not is judged. The invention can well replace the metal to be configured into the alloy to be configured, has very uniform distribution and compact structure, has very compact structure of crystal boundary, and can play a good corrosion-resistant effect.
Description
Technical Field
The invention relates to the technical field of alloy preparation, in particular to a method for preparing an alloy.
Background
One of failure modes of the lead-acid storage battery is corrosion of a grid, the service life of the lead-acid storage battery can be greatly prolonged by slowing down the corrosion of the grid, in order to overcome the defect, scientists have studied and tested to invent various alloy materials, and the research and the test prove that the alloy materials can really achieve a good effect.
Disclosure of Invention
The present invention provides a method for preparing alloy, which solves the problems in the background art.
The invention provides a method for preparing alloy, which comprises the following steps:
s1: selecting a lead-tin alloy, placing the lead-tin alloy in an ultrasonic cleaning machine, and cleaning the surface of the lead-tin alloy at the temperature of 60-80 ℃ for 4-6min, so that the cleanliness of the lead-tin alloy can be ensured, and the quality of alloy preparation can be improved;
s2: adding the lead-tin alloy treated in the step S1 into a smelting furnace, heating the temperature in the smelting furnace to 600-700 ℃, and mixing and stirring the lead-tin alloy in real time in the heating process;
s3: after heating for 5-9min, controlling the mixing and stirring speed at 80-120 r/min, then adding copper chloride into the mixture in the stirring process, continuously mixing and stirring for 2 hours to obtain molten metal, and casting and molding the molten metal to obtain the alloy;
and S4, testing the internal components of the obtained alloy by using a spectrometer, controlling the copper content in the alloy to be between 0.08 and 0.12 percent, judging whether the copper content meets the requirement, and using the alloy after the copper content is qualified.
Preferably, the amount of lead-tin alloy added in S1 is determined by the amount of tin in the alloy after placement, and the amount lost by heating and stirring, except for being replaced, is controlled to be between 0.02% and 0.04%.
Preferably, after adding copper chloride in S3, the loss of copper chloride in the preparation process is ensured to be 45-55%.
The method for preparing the alloy has the advantages that: according to the method for preparing the alloy, in the molten alloy, the metal salt can replace the metal behind the metal salt in the active sequence, so that the metal to be prepared can be well replaced into the alloy to be prepared, the distribution is very uniform, the structure is compact, the crystal boundary is very compact, and the good corrosion resistance effect can be achieved.
Detailed Description
The invention is further illustrated by the following examples.
Example 1
The invention provides a method for preparing alloy, which comprises the following steps:
s1: selecting a lead-tin alloy, wherein the addition amount of the lead-tin alloy is determined by the amount of tin in the alloy after the alloy is prepared, except for the replaced lead-tin alloy, the loss amount needs to be controlled between 0.02% and 0.04% due to heating and stirring, placing the lead-tin alloy in an ultrasonic cleaning machine, cleaning the surface of the lead-tin alloy at the temperature of 60 ℃, wherein the cleaning time is 4min, so that the cleanliness of the lead-tin alloy can be ensured, and the quality of the alloy preparation can be improved;
s2: adding the lead-tin alloy treated in the step S1 into a smelting furnace, heating the temperature in the smelting furnace to 600 ℃, and mixing and stirring the lead-tin alloy in the smelting furnace in real time in the heating process;
s3: after the alloy is heated for 5min, controlling the mixing and stirring speed at 80-120 r/min, then adding copper chloride into the mixture in the stirring process, continuously mixing and stirring for 2 h, ensuring that the loss of the copper chloride in the preparation process is 45% -55% after the copper chloride is added, obtaining molten metal, and casting and molding the molten metal to obtain the alloy;
and S4, testing the internal components of the obtained alloy by using a spectrometer, controlling the copper content in the alloy to be between 0.08 and 0.12 percent, judging whether the copper content meets the requirement, and using the alloy after the copper content is qualified.
Example 2
The invention provides a method for preparing alloy, which comprises the following steps:
s1: selecting a lead-tin alloy, wherein the addition amount of the lead-tin alloy is determined by the amount of tin in the alloy after the alloy is prepared, except for the replaced lead-tin alloy, the loss amount needs to be controlled between 0.02% and 0.04% due to heating and stirring, placing the lead-tin alloy in an ultrasonic cleaning machine, cleaning the surface of the lead-tin alloy at 65 ℃, wherein the cleaning time is 4.5min, and the cleanliness of the lead-tin alloy can be ensured, so that the quality of the alloy preparation can be improved;
s2: adding the lead-tin alloy treated in the step S1 into a smelting furnace, heating the temperature in the smelting furnace to 625 ℃, and mixing and stirring the lead-tin alloy in the smelting furnace in real time in the heating process;
s3: after the alloy is heated for 6min, controlling the mixing and stirring speed at 80-120 r/min, then adding copper chloride into the mixture in the stirring process, continuously mixing and stirring for 2 h, ensuring that the loss of the copper chloride in the preparation process is 45% -55% after the copper chloride is added, obtaining molten metal, and casting and molding the molten metal to obtain the alloy;
and S4, testing the internal components of the obtained alloy by using a spectrometer, controlling the copper content in the alloy to be between 0.08 and 0.12 percent, judging whether the copper content meets the requirement, and using the alloy after the copper content is qualified.
Example 3
The invention provides a method for preparing alloy, which comprises the following steps:
s1: selecting a lead-tin alloy, wherein the addition amount of the lead-tin alloy is determined by the amount of tin in the alloy after the alloy is prepared, except for the replaced lead-tin alloy, the loss amount needs to be controlled between 0.02% and 0.04% due to heating and stirring, placing the lead-tin alloy in an ultrasonic cleaning machine, cleaning the surface of the lead-tin alloy at 70 ℃, wherein the cleaning time is 5min, the cleanliness of the lead-tin alloy can be ensured, and the quality of the alloy preparation can be improved;
s2: adding the lead-tin alloy treated in the step S1 into a smelting furnace, heating the temperature in the smelting furnace to 650 ℃, and mixing and stirring the lead-tin alloy in the smelting furnace in real time in the heating process;
s3: after the alloy is heated for 7min, controlling the mixing and stirring speed at 80-120 r/min, then adding copper chloride into the mixture in the stirring process, continuously mixing and stirring for 2 h, ensuring that the loss of the copper chloride in the preparation process is 45% -55% after the copper chloride is added, obtaining molten metal, and casting and molding the molten metal to obtain the alloy;
and S4, testing the internal components of the obtained alloy by using a spectrometer, controlling the copper content in the alloy to be between 0.08 and 0.12 percent, judging whether the copper content meets the requirement, and using the alloy after the copper content is qualified.
Example 4
The invention provides a method for preparing alloy, which comprises the following steps:
s1: selecting a lead-tin alloy, wherein the addition amount of the lead-tin alloy is determined by the amount of tin in the alloy after the alloy is prepared, except for the replaced lead-tin alloy, the loss amount needs to be controlled between 0.02% and 0.04% due to heating and stirring, placing the lead-tin alloy in an ultrasonic cleaning machine, cleaning the surface of the lead-tin alloy at 75 ℃, wherein the cleaning time is 5.5min, and the cleanliness of the lead-tin alloy can be ensured, so that the quality of the alloy preparation can be improved;
s2: adding the lead-tin alloy treated in the S1 into a smelting furnace, heating the temperature in the smelting furnace to 675 ℃, and mixing and stirring the lead-tin alloy in the smelting furnace in real time in the heating process;
s3: after the alloy is heated for 8min, controlling the mixing and stirring speed at 80-120 r/min, then adding copper chloride into the mixture in the stirring process, continuously mixing and stirring for 2 h, ensuring that the loss of the copper chloride in the preparation process is 45% -55% after the copper chloride is added, obtaining molten metal, and casting and molding the molten metal to obtain the alloy;
and S4, testing the internal components of the obtained alloy by using a spectrometer, controlling the copper content in the alloy to be between 0.08 and 0.12 percent, judging whether the copper content meets the requirement, and using the alloy after the copper content is qualified.
Example 5
The invention provides a method for preparing alloy, which comprises the following steps:
s1: selecting a lead-tin alloy, wherein the addition amount of the lead-tin alloy is determined by the amount of tin in the alloy after the alloy is prepared, except for the replaced lead-tin alloy, the loss amount needs to be controlled between 0.02% and 0.04% due to heating and stirring, placing the lead-tin alloy in an ultrasonic cleaning machine, cleaning the surface of the lead-tin alloy at the temperature of 80 ℃, wherein the cleaning time is 6min, and the cleanliness of the lead-tin alloy can be ensured, so that the quality of the alloy preparation can be improved;
s2: adding the lead-tin alloy treated in the step S1 into a smelting furnace, heating the temperature in the smelting furnace to 700 ℃, and mixing and stirring the lead-tin alloy in the smelting furnace in real time in the heating process;
s3: after the alloy is heated for 9min, controlling the mixing and stirring speed at 80-120 r/min, then adding copper chloride into the mixture in the stirring process, continuously mixing and stirring for 2 h, ensuring that the loss of the copper chloride in the preparation process is 45% -55% after the copper chloride is added, obtaining molten metal, and casting and molding the molten metal to obtain the alloy;
and S4, testing the internal components of the obtained alloy by using a spectrometer, controlling the copper content in the alloy to be between 0.08 and 0.12 percent, judging whether the copper content meets the requirement, and using the alloy after the copper content is qualified.
Example 6
The test results of the alloy components before and after the preparation are as follows:
| tin Sn | Copper Cu | |
| Before the experiment | 1.568％ | 0％ |
| After the experiment | 1.431％↓ | 0.103％↑ |
By adopting the alloy configuration method, the required alloy can be effectively configured, the included alloy is not limited to the lead-copper alloy exemplified above, all alloys which are difficult to configure can be configured by adopting the method, in the molten alloy, metal salts can replace the metal behind the metal salts in an active sequence, so that the metal which needs to be configured can be well replaced into the alloy which needs to be configured, the distribution is very uniform, the structure is compact, the crystal boundary is very compact in structure, and the good corrosion resistance effect can be achieved.
For example, the lead-tin alloy is configured into a lead-tin-copper alloy, namely, if copper element is added into the original lead-tin alloy, tin is originally uniformly dispersed in the lead-tin alloy, and if copper chloride (copper salt) is added, tin is in front of copper due to the metal activity sequence, the reaction can occur, CuCl2+ Sn → Cu + SnCl2, copper generated by the reaction is uniformly dissolved in the lead-Sn alloy during replacement, and the problem of adding the copper element to the back does not exist.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. A method of configuring an alloy, comprising the steps of: s1: selecting a lead-tin alloy, placing the lead-tin alloy in an ultrasonic cleaning machine, and cleaning the surface of the lead-tin alloy at the temperature of 60-80 ℃ for 4-6min, so that the cleanliness of the lead-tin alloy can be ensured, and the quality of alloy preparation can be improved; s2: adding the lead-tin alloy treated in the step S1 into a smelting furnace, heating the temperature in the smelting furnace to 600-700 ℃, and mixing and stirring the lead-tin alloy in real time in the heating process; s3: after heating for 5-9min, controlling the mixing and stirring speed at 80-120 r/min, then adding copper chloride into the mixture in the stirring process, continuously mixing and stirring for 2 hours to obtain molten metal, and casting and molding the molten metal to obtain the alloy; and S4, testing the internal components of the obtained alloy by using a spectrometer, controlling the copper content in the alloy to be between 0.08 and 0.12 percent, judging whether the copper content meets the requirement, and using the alloy after the copper content is qualified.
2. A method of configuring an alloy as claimed in claim 1, wherein: the amount of lead-tin alloy added in S1 is determined by the amount of tin in the alloy after placement, and the amount of loss due to heating and stirring, except for replacement, needs to be controlled to be between 0.02% and 0.04%.
3. A method of configuring an alloy as claimed in claim 1, wherein: after the copper chloride is added in S3, the loss of the copper chloride in the preparation process is ensured to be 45-55%.
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| CN201910313081.3A CN110129593B (en) | 2019-04-18 | 2019-04-18 | Method for preparing alloy |
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| CN201910313081.3A CN110129593B (en) | 2019-04-18 | 2019-04-18 | Method for preparing alloy |
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| JPS60148692A (en) * | 1984-01-17 | 1985-08-05 | Furukawa Electric Co Ltd:The | Pb base high melting solder |
| CZ288963B6 (en) * | 1994-12-09 | 2001-10-17 | Glyco-Metall-Werke Glyco B. V. & Co. Kg | Multilayer material for sliding elements and process and means for the production thereof |
| CN101748453B (en) * | 2009-12-31 | 2011-06-08 | 合肥工业大学 | Double pulse plating solution for preparing lead-free Sn-Cu alloy solder and plating process |
| CN101949031A (en) * | 2010-10-18 | 2011-01-19 | 中南大学 | Composite porous electrode for sulfuric acid system and preparation method thereof |
| CN109517989B (en) * | 2018-11-19 | 2020-08-11 | 北京科技大学 | Refining method of tin-lead-containing scrap copper |
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Denomination of invention: A Method of Alloying Alloys Effective date of registration: 20230317 Granted publication date: 20200804 Pledgee: Bank of Beijing Limited by Share Ltd. Shenzhen branch Pledgor: ZHAOQING LEOCH BATTERY TECHNOLOGY Co.,Ltd. Registration number: Y2023980035318 |