CN111809085A - High-voltage electrical system transmission case and casting process thereof - Google Patents
High-voltage electrical system transmission case and casting process thereof Download PDFInfo
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- CN111809085A CN111809085A CN202010679627.XA CN202010679627A CN111809085A CN 111809085 A CN111809085 A CN 111809085A CN 202010679627 A CN202010679627 A CN 202010679627A CN 111809085 A CN111809085 A CN 111809085A
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- transmission case
- electrical system
- voltage electrical
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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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
- C22C1/026—Alloys based on aluminium
-
- 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
Abstract
The invention discloses a high-voltage electric system transmission case and a casting process thereof, wherein the high-voltage electric system transmission case comprises the following components in percentage by weight: gb 0.5-0.7%, Nb0.2-0.4%, Co0.8-1.0%, Ni0.1-0.3%, Si 6.5-7.5%, Fe0.1-0.3%, Cu0.1-0.3%, Mn0.1-0.2%, Mg0.25-0.45%, Sr0.008-0.015%, Zn0.1-0.2%, Ti0.1-0.3%, and the balance of Al and inevitable impurities. The addition of the element Gb has a consumption effect on Si element, so that the alloy has an obvious modification effect on the interior of the alloy, the crystal grains are refined, and the mechanical property of a transmission case of a high-voltage electrical system is improved; the Nb element is added as a superconducting material, so that the conductivity of a transmission case of a high-voltage electrical system can be greatly improved, and the current loss is reduced; the addition of Co element improves the physical property and heat resistance of the transmission case of the high-voltage electrical system, improves the overall performance of the transmission case of the high-voltage electrical system and ensures the service life of the transmission case.
Description
Technical Field
The invention relates to the technical field of casting of high-voltage electric system transmission boxes, in particular to a high-voltage electric system transmission box and a casting process thereof.
Background
In the national power industry, such as high-voltage electrical systems of power stations, substations and the like, transmission cases are required. The performance of a high-voltage electrical system transmission box as part of a high-voltage electrical system directly affects the stability of the operation of the high-voltage electrical system. The transmission case of the high-voltage electrical system also has the main performance of mechanical property. Therefore, the technical problem to be solved by the invention is how to design the high-voltage electric system transmission case with excellent mechanical property and the casting process thereof.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the high-voltage electric system transmission case with excellent mechanical property and the casting process thereof.
The invention solves the technical problems through the following technical means:
the transmission case of the high-voltage electrical system comprises the following components in percentage by weight: gb 0.5-0.7%, Nb0.2-0.4%, Co0.8-1.0%, Ni0.1-0.3%, Si 6.5-7.5%, Fe0.1-0.3%, Cu0.1-0.3%, Mn0.1-0.2%, Mg0.25-0.45%, Sr0.008-0.015%, Zn0.1-0.2%, Ti0.1-0.3%, and the balance of Al and inevitable impurities.
Preferably, the casting process of the high-voltage electric system transmission case comprises the following steps:
(1) adding an aluminum ingot into a smelting furnace for melting, adding silicon when the temperature of molten metal is raised to 810-820 ℃, stirring the molten metal until the silicon is completely melted, and standing for 5-7 min; then the temperature is raised to 840 ℃ and 860 ℃, Nb, Co, Fe, Cu, Mn and Zn are added into the molten metal; stirring the molten metal and heating the molten metal, adding Ni, Mg and Sr when the molten metal reaches 870-; adding Gb and Ti, and stirring for 15-25 min;
(2) cooling the aluminum alloy melt to 750-770 ℃, adding a refining agent, spraying nitrogen or inert gas for refining, and keeping the temperature for refining for 20-25min each time; then, slagging off and filtering are sequentially carried out to obtain refined aluminum alloy melt; sampling and testing the chemical components of the alloy, comparing the difference between the designed components and the actually measured components, and finely adjusting to ensure that the alloy components meet the requirements of the designed components;
(3) injecting the refined molten aluminum alloy which is qualified in the test into a high-voltage electric system transmission case die, and performing casting molding; and cooling to room temperature to obtain the high-voltage electric system transmission case.
The refining agent is potassium tetrafluoroaluminate, and the addition amount of the refining agent is 0.2-0.3% of that of the aluminum alloy solution.
The invention has the advantages that: the addition of the element Gb has a consumption effect on Si element, so that the alloy has an obvious modification effect on the interior of the alloy, the crystal grains are refined, and the mechanical property of a transmission case of a high-voltage electrical system is improved; the Nb element is added as a superconducting material, so that the conductivity of a transmission case of a high-voltage electrical system can be greatly improved, and the current loss is reduced; the addition of Co element improves the physical property and heat resistance of the transmission case of the high-voltage electrical system, improves the overall performance of the transmission case of the high-voltage electrical system and ensures the service life of the transmission case.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The transmission case of the high-voltage electrical system comprises the following components in percentage by weight: gb 0.5-0.7%, Nb0.2-0.4%, Co0.8-1.0%, Ni0.1-0.3%, Si 6.5-7.5%, Fe0.1-0.3%, Cu0.1-0.3%, Mn0.1-0.2%, Mg0.25-0.45%, Sr0.008-0.015%, Zn0.1-0.2%, Ti0.1-0.3%, and the balance of Al and inevitable impurities.
Preferably, the casting process of the high-voltage electric system transmission case comprises the following steps:
(1) adding an aluminum ingot into a smelting furnace for melting, adding silicon when the temperature of molten metal is raised to 810-820 ℃, stirring the molten metal until the silicon is completely melted, and standing for 5-7 min; then the temperature is raised to 840 ℃ and 860 ℃, Nb, Co, Fe, Cu, Mn and Zn are added into the molten metal; stirring the molten metal and heating the molten metal, adding Ni, Mg and Sr when the molten metal reaches 870-; adding Gb and Ti, and stirring for 15-25 min;
(2) cooling the aluminum alloy melt to 750-770 ℃, adding a refining agent, spraying nitrogen or inert gas for refining, and keeping the temperature for refining for 20-25min each time; then, slagging off and filtering are sequentially carried out to obtain refined aluminum alloy melt; sampling and testing the chemical components of the alloy, comparing the difference between the designed components and the actually measured components, and finely adjusting to ensure that the alloy components meet the requirements of the designed components;
(3) injecting the refined molten aluminum alloy which is qualified in the test into a high-voltage electric system transmission case die, and performing casting molding; and cooling to room temperature to obtain the high-voltage electric system transmission case.
The refining agent is potassium tetrafluoroaluminate, and the addition amount of the refining agent is 0.2-0.3% of that of the aluminum alloy solution.
The addition of the element Gb has a consumption effect on Si element, so that the alloy has an obvious modification effect on the interior of the alloy, the crystal grains are refined, and the mechanical property of a transmission case of a high-voltage electrical system is improved; the Nb element is added as a superconducting material, so that the conductivity of a transmission case of a high-voltage electrical system can be greatly improved, and the current loss is reduced; the addition of Co element improves the physical property and heat resistance of the transmission case of the high-voltage electrical system, improves the overall performance of the transmission case of the high-voltage electrical system and ensures the service life of the transmission case.
Embodiment 1, a high voltage electrical system transmission case comprising the following components in weight percent: gb0.5%, nb0.2%, co0.8%, ni0.1%, si 6.5%, fe0.1%, cu0.1%, mn0.1%, mg0.25%, sr0.008%, zn0.1%, ti0.1%, and the balance Al and inevitable impurities.
Embodiment 2, a high voltage electrical system transmission case comprising the following components in weight percent: gb0.6%, nb0.3%, co0.9%, ni0.2%, Si 7%, fe0.2%, cu0.2%, mn0.15%, mg0.35%, sr0.012%, zn0.15%, ti0.2%, and the balance Al and inevitable impurities.
Embodiment 3, a high voltage electrical system transmission case, comprising the following components in weight percent: gb0.7%, nb0.4%, co1.0%, ni0.3%, si 7.5%, fe0.3%, cu0.3%, mn0.2%, mg0.45%, sr0.015%, zn0.2%, ti0.3%, and the balance Al and inevitable impurities.
Comparative example 1, a high voltage electrical system transmission case comprising the following components in weight percent: 0.3% of Nb0.3%, 0.9% of Co0.9%, 0.2% of Ni0%, 7% of Si, 0.2% of Fe0.2%, 0.2% of Cu0.15%, 0.35% of Mn0.15%, 0.012% of Mg0.35%, 0.15% of Zn0.2%, and the balance of Al and inevitable impurities.
Comparative example 2, a high voltage electrical system transmission case comprising the following components in weight percent: gb0.6%, nb0.3%, ni0.2%, Si 7%, fe0.2%, cu0.2%, mn0.15%, mg0.35%, sr0.012%, zn0.15%, ti0.2%, and the balance Al and inevitable impurities.
Comparative example 3, a high voltage electrical system transmission case comprising the following components in weight percent: gb0.6%, co0.9%, ni0.2%, Si 7%, fe0.2%, cu0.2%, mn0.15%, mg0.35%, sr0.012%, zn0.15%, ti0.2%, and the balance Al and inevitable impurities.
The samples prepared in examples 1 to 3 and comparative examples 1 to 3 were subjected to performance tests, and the test results are shown in the following table;
it is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (3)
1. The transmission case of the high-voltage electrical system is characterized by comprising the following components in percentage by weight: gb 0.5-0.7%, Nb0.2-0.4%, Co0.8-1.0%, Ni0.1-0.3%, Si 6.5-7.5%, Fe0.1-0.3%, Cu0.1-0.3%, Mn0.1-0.2%, Mg0.25-0.45%, Sr0.008-0.015%, Zn0.1-0.2%, Ti0.1-0.3%, and the balance of Al and inevitable impurities.
2. A casting process of a transmission case of a high-voltage electrical system according to claim 1, comprising the steps of:
(1) adding an aluminum ingot into a smelting furnace for melting, adding silicon when the temperature of molten metal is raised to 810-820 ℃, stirring the molten metal until the silicon is completely melted, and standing for 5-7 min; then the temperature is raised to 840 ℃ and 860 ℃, Nb, Co, Fe, Cu, Mn and Zn are added into the molten metal; stirring the molten metal and heating the molten metal, adding Ni, Mg and Sr when the molten metal reaches 870-; adding Gb and Ti, and stirring for 15-25 min;
(2) cooling the aluminum alloy melt to 750-770 ℃, adding a refining agent, spraying nitrogen or inert gas for refining, and keeping the temperature for refining for 20-25min each time; then, slagging off and filtering are sequentially carried out to obtain refined aluminum alloy melt; sampling and testing the chemical components of the alloy, comparing the difference between the designed components and the actually measured components, and finely adjusting to ensure that the alloy components meet the requirements of the designed components;
(3) injecting the refined molten aluminum alloy which is qualified in the test into a high-voltage electric system transmission case die, and performing casting molding; and cooling to room temperature to obtain the high-voltage electric system transmission case.
3. The casting process of the high-voltage electrical system transmission case according to claim 2, wherein: in the step (2), the refining agent is potassium tetrafluoroaluminate, and the addition amount of the refining agent is 0.2-0.3% of that of the aluminum alloy solution.
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| CN202010679627.XA CN111809085A (en) | 2020-07-15 | 2020-07-15 | High-voltage electrical system transmission case and casting process thereof |
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| CN202010679627.XA CN111809085A (en) | 2020-07-15 | 2020-07-15 | High-voltage electrical system transmission case and casting process thereof |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6263639A (en) * | 1985-09-17 | 1987-03-20 | Taiho Kogyo Co Ltd | Aluminum bearing alloy |
| CN101311283A (en) * | 2007-05-24 | 2008-11-26 | 莱茵费尔登炼铝厂有限责任公司 | High-temperature aluminium alloy |
| EP2112242A1 (en) * | 2008-04-18 | 2009-10-28 | United Technologies Corporation | Heat treatable L12 aluminium alloys |
| EP2173916A2 (en) * | 2007-07-18 | 2010-04-14 | Technische Universität Clausthal | Cast aluminum alloy, and use thereof |
| JP2011042861A (en) * | 2009-08-24 | 2011-03-03 | Toyota Central R&D Labs Inc | Aluminum alloy, heat resistant aluminum alloy material, and method for producing the same |
| CN104294109A (en) * | 2014-10-23 | 2015-01-21 | 重庆大学 | Samarium and/or gadolinium-containing heat-resisting cast aluminum alloy and preparation method thereof |
| CN104862546A (en) * | 2015-04-14 | 2015-08-26 | 芜湖市鸿坤汽车零部件有限公司 | Engine cylinder cover aluminium alloy material smelt by utilizing aluminium scrap and preparation method thereof |
| CN106282685A (en) * | 2016-08-31 | 2017-01-04 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of high strength cast aluminum alloys and preparation method thereof |
| CN106523176A (en) * | 2016-11-10 | 2017-03-22 | 无锡市明盛强力风机有限公司 | Aluminum alloy cylinder cover |
| CN107034393A (en) * | 2017-04-19 | 2017-08-11 | 安徽固齐线路器材有限公司 | A kind of electric armour clamp high-strength abrasion-proof aluminum alloy |
| CN107217180A (en) * | 2017-06-07 | 2017-09-29 | 合肥励仙电力工程有限公司 | A kind of high pressure resistant high-temperature electric conduction line and its preparation technology |
| CN107267819A (en) * | 2017-07-04 | 2017-10-20 | 合肥市大卓电力有限责任公司 | It is a kind of for alloy material of electric wire and preparation method thereof |
| CN107923004A (en) * | 2015-08-13 | 2018-04-17 | 美铝美国公司 | Improved 3XX ceralumins and preparation method thereof |
| CN110629086A (en) * | 2019-10-01 | 2019-12-31 | 湖南七纬科技有限公司 | Die-casting aluminum alloy material for 5G communication base station shell and preparation method thereof |
| CN111032897A (en) * | 2017-08-14 | 2020-04-17 | 伦敦布鲁内尔大学 | Method of forming cast aluminum alloy |
-
2020
- 2020-07-15 CN CN202010679627.XA patent/CN111809085A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6263639A (en) * | 1985-09-17 | 1987-03-20 | Taiho Kogyo Co Ltd | Aluminum bearing alloy |
| CN101311283A (en) * | 2007-05-24 | 2008-11-26 | 莱茵费尔登炼铝厂有限责任公司 | High-temperature aluminium alloy |
| EP2173916A2 (en) * | 2007-07-18 | 2010-04-14 | Technische Universität Clausthal | Cast aluminum alloy, and use thereof |
| EP2112242A1 (en) * | 2008-04-18 | 2009-10-28 | United Technologies Corporation | Heat treatable L12 aluminium alloys |
| JP2011042861A (en) * | 2009-08-24 | 2011-03-03 | Toyota Central R&D Labs Inc | Aluminum alloy, heat resistant aluminum alloy material, and method for producing the same |
| CN104294109A (en) * | 2014-10-23 | 2015-01-21 | 重庆大学 | Samarium and/or gadolinium-containing heat-resisting cast aluminum alloy and preparation method thereof |
| CN104862546A (en) * | 2015-04-14 | 2015-08-26 | 芜湖市鸿坤汽车零部件有限公司 | Engine cylinder cover aluminium alloy material smelt by utilizing aluminium scrap and preparation method thereof |
| CN107923004A (en) * | 2015-08-13 | 2018-04-17 | 美铝美国公司 | Improved 3XX ceralumins and preparation method thereof |
| CN106282685A (en) * | 2016-08-31 | 2017-01-04 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of high strength cast aluminum alloys and preparation method thereof |
| CN106523176A (en) * | 2016-11-10 | 2017-03-22 | 无锡市明盛强力风机有限公司 | Aluminum alloy cylinder cover |
| CN107034393A (en) * | 2017-04-19 | 2017-08-11 | 安徽固齐线路器材有限公司 | A kind of electric armour clamp high-strength abrasion-proof aluminum alloy |
| CN107217180A (en) * | 2017-06-07 | 2017-09-29 | 合肥励仙电力工程有限公司 | A kind of high pressure resistant high-temperature electric conduction line and its preparation technology |
| CN107267819A (en) * | 2017-07-04 | 2017-10-20 | 合肥市大卓电力有限责任公司 | It is a kind of for alloy material of electric wire and preparation method thereof |
| CN111032897A (en) * | 2017-08-14 | 2020-04-17 | 伦敦布鲁内尔大学 | Method of forming cast aluminum alloy |
| CN110629086A (en) * | 2019-10-01 | 2019-12-31 | 湖南七纬科技有限公司 | Die-casting aluminum alloy material for 5G communication base station shell and preparation method thereof |
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Application publication date: 20201023 |