CN102618738A - Smelting process for aluminum-silicon master alloy - Google Patents
Smelting process for aluminum-silicon master alloy Download PDFInfo
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- CN102618738A CN102618738A CN2012101233175A CN201210123317A CN102618738A CN 102618738 A CN102618738 A CN 102618738A CN 2012101233175 A CN2012101233175 A CN 2012101233175A CN 201210123317 A CN201210123317 A CN 201210123317A CN 102618738 A CN102618738 A CN 102618738A
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Abstract
The invention relates to a smelting process for an aluminum-silicon master alloy. 75 percent of industrial pure aluminum ingot with the aluminum content being more than or equal to 99.7 percent and 12.5 to 13 percent of 6063 aluminum remelted regenerable ingot, which are measured according to a weight percent, are added into a reverberatory furnace at the temperature of 1000 to 1200 DEG C, 12 to 12.5 percent of well-measured pure silicon is added into the reverberatory furnace after the ingot is completely smelted to generate aluminum-silicon master alloy melt, and the aluminum-silicon master alloy melt is made into the aluminum-silicon master alloy through a smelting technique, a casting technique and a sawing technique. On the premise of not increasing equipment investment, the existing aluminum alloy smelting reverberatory furnace with an environment-friendly device system, a deep well and a casting system capable of continuously casting multiple cylindrical ingots at a time are used for smelting and casting the aluminum-silicon master alloy cylindrical ingot so as to substitute a traditional outdated production technique of the aluminum-silicon master alloy adopting a small-sized ground furnace to smelt and adopting a manual pouring way and an automatic cooling way of ingot molds, so that the energy can be saved, the environment can be protected, the production efficiency can be greatly improved, the labor intensity can be alleviated, the balance of silicon content in the aluminum-silicon master alloy and adequate chemical combination of aluminum and silicon as well as refining of the crystal grains can be better guaranteed, and the transformation, upgrading and development of enterprises can be promoted.
Description
Technical field
The invention belongs to aluminum alloy materials melting and casting technology field, refer in particular to a kind of melting technology of aluminium silicon master alloy.
Background technology
Its fusing point of industry pure silicon is high, in smelting aluminium alloy, directly adds and is difficult for chemical combination, generally all adds with the master alloy form; And the melting of traditional aluminium silicon master alloy and making method mostly adopt many stove meltings of small-sized stove and artificial cast, ingot mould from cold process production, and there are a lot of defectives in this method: production efficiency is low, and every batch of silicon content is unbalanced; And cause repeatedly checking in the aluminium alloy smelting blending process and adding aluminium silicon master alloy, and silicon and calorize close not exclusively, because smelting temperature is high; Labor strength is big; Remove the gred in the melting and casting process, degasification is not thorough, and silicon oxide (siliceous skin) is difficult to remove.With the prepare burden series alloys cylinder ingots of melting and casting of this aluminium silicon master alloy, be prone to carry secretly the stain particle through the aluminium shape surface of heating extrusion production, and cause that aluminium shape surface is pulled, defective such as coarse.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective; Provide a kind of technology simple, the harmony and the aluminium silication of aluminium silicon master alloy silicon content are closed fully, and production efficiency is high; Energy-conserving and environment-protective alleviate the aluminium silicon master alloy melting technology and the making method of working strength of workers.
For addressing the above problem, take following technical scheme: a kind of melting technology of aluminium silicon master alloy may further comprise the steps:
1, batching:
1) the technical pure aluminium ingot of aluminum content >=99.7% accounts for 75%;
2) 6063 aluminum remeltings regeneration aluminium ingot accounts for 12.5-13%;
3) industrial pure silicon accounts for 12～12.5%;
2, melting:
The reverberatory furnace burner hearth is heated to 1000-1200 ℃ earlier, adds 6063 aluminum remeltings of 75% technical pure aluminium ingot that has taken by weighing and 12-12.5% regeneration ingot in the stove, until completely melted simultaneously; The temperature of aluminium liquid reaches 760 ℃, and the 12-12.5% that will take by weighing again industry pure silicon adds in the stove, until completely melted; By stirring along the inverse time, churning time 10-15 minute, aluminium liquid stopped in stove and carries out after 40 minutes being stirred to combination without repetition 2-4 time again with the permanent magnetism stirrer; Use deslagging agent, refining agent and 99.999% high pure nitrogen remove the gred degasification completely to aluminium silicon master alloy liquation; Then the liquid level scum silica frost is thoroughly removed outside the stove, let its melt leave standstill.
3, casting technique:
1) adopts high-temperature glass fibre bag and 30 height of eye temperature ceramic filter plate front and back stages aluminum filtration silicon master alloy melts before the casting.
2) casting temp is 720 ℃, adopts the casting system of 80 diameter 90mm of deep-well one-time continuous casting, utilizes isothermal, the casting of constant speed method of cooling.
3) the casting coolant water temperature is 25-30 ℃.
4, sawed-off:
Utilize the saw rod machine of saw duraluminum cylinder ingot that aluminium silicon master alloy body length ingot is sawn into some segments.
Beneficial effect of the present invention is following:
1, the present invention has improved traditional melting technology and making method, can make full use of existing installation melting and casting aluminium silicon master alloy, need not drop into by increase equipment.
2, technology is simple, and production efficiency is high, by big stove 4 people full Production Flow Chart in 8 hours, can produce 12 tons, and everyone 3 tons, and 8 hours meters of small-sized pit furnace 1 people can produce two stoves, every stove 250kg, therefore improves 6 times than small-sized pit furnace production efficiency by everyone 0.5 ton.
3, make full use of the regeneration aluminium ingot, save energy is protected environment again and is alleviated working strength of workers.
4, the duraluminum cylinder ingot of the aluminium silicon master alloy of novel process and novel method founding preparation, consistent through the section bar surface light tone that adds hot extrusion, to have eliminated and carried the stain particle in the former product secretly, quality product is largely increased.
Embodiment
Embodiment 1: get the technical pure aluminium ingot of 75% aluminium amount >=99.7%, 12.5% 6063 aluminum remeltings regeneration aluminium ingot and 12.5% industrial pure silicon are heated to 1100 ℃ with the reverberatory furnace burner hearth; Add 6063 aluminum remeltings of the 75% technical pure aluminium ingot that has taken by weighing and 12.5% regeneration ingot in the stove simultaneously; Until completely melted, when the temperature of aluminium liquid reaches 760 ℃, the 12.5% industrial pure silicon that has taken by weighing is added in the stove; Until completely melted; Stir by the suitable inverse time with the permanent magnetism stirrer, churning time 13 minutes, aluminium liquid stops in stove and carries out after 40 minutes being stirred to combination without repetition 2 times again; Twice pair of melt of Al-Ti-B silk carries out abundant grain refining behind stokehold Al-Ti-B agent and the stove; Again with 99.999% high pure nitrogen to aluminium silicon master alloy liquation remove the gred completely, degasification, then the liquid level scum silica frost is thoroughly removed outside the stove, let its melt leave standstill 8 minutes.Adopt high-temperature glass fibre bag and 30 height of eye temperature ceramic filter plate front and back stages aluminum filtration silicon master alloy melts before the casting; When the adjusting temperature of aluminum liquid is 720 ℃; Adopt the casting system of 80 diameter 90mm of deep-well one-time continuous casting; Utilize isothermal, the casting of constant speed method of cooling, the casting coolant water temperature is 25 ℃.
Embodiment 2: get the technical pure aluminium ingot of 75% aluminium amount >=99.7%, 12.3% 6063 aluminum remeltings regeneration aluminium ingot and 12.7% industrial pure silicon are heated to 1100 ℃ with the reverberatory furnace burner hearth; Add 6063 aluminum remeltings of the 75% technical pure aluminium ingot that has taken by weighing and 12.3% regeneration ingot simultaneously in the stove, until completely melted, when the temperature of aluminium liquid reaches 760 ℃; The 12.7% industrial pure silicon that has taken by weighing is added in the stove; Until completely melted, stir churning time 15 minutes with the permanent magnetism stirrer by the suitable inverse time; Aluminium liquid stops in stove and carries out after 60 minutes being stirred to combination without repetition 4 times again; Twice pair of melt of Al-Ti-B silk carries out abundant grain refining behind stokehold Al-Ti-B agent and the stove, with 99.999% high pure nitrogen aluminium silicon master alloy liquation removed the gred degasification completely again; Then the liquid level scum silica frost is thoroughly removed outside the stove, let its melt leave standstill 10 minutes.Adopt high-temperature glass fibre bag and 30 height of eye temperature ceramic filter plate front and back stages aluminum filtration silicon master alloy melts before the casting; When the adjusting temperature of aluminum liquid is 720 ℃; Adopt the casting system of 80 diameter 90mm of deep-well one-time continuous casting; Utilize isothermal, the casting of constant speed method of cooling, the casting coolant water temperature is 28 ℃.
Claims (5)
1. the melting technology of an aluminium silicon master alloy is characterized in that: may further comprise the steps: batching:
1) the technical pure aluminium ingot of aluminum content >=99.7% accounts for 75%;
2) 6063 aluminum remeltings regeneration aluminium ingot accounts for 12.5-13%;
3) industrial pure silicon accounts for 12-12.5%;
Melting:
The reverberatory furnace burner hearth is heated to 1000-1200 ℃ earlier, add in the stove fusing fully to 6063 aluminum remeltings of 75% technical pure aluminium ingot and 12-12.5% regeneration ingot simultaneously after, when aluminium liquid reaches 760 ℃; Again 12-12.5% industry pure silicon is added in the stove; Until completely melted, by stirring along the inverse time, aluminium liquid stops in stove and carries out after 40 minutes being stirred to combination without repetition 2-4 time again with the permanent magnetism stirrer; Use deslagging agent; Refining agent and 99.999% high pure nitrogen to aluminium silicon master alloy liquation remove the gred completely, degasification, then the liquid level scum silica frost is thoroughly removed outside the stove, let its melt leave standstill;
Casting technique:
1) adopts high-temperature glass fibre bag and 30 height of eye temperature ceramic filter plate front and back stages aluminum filtration silicon master alloy melts before the casting;
2) adopt the deep-well one-time continuous to cast the casting system of 80 diameter 90mm, utilize isothermal, the casting of constant speed method of cooling;
3) the casting coolant water temperature is 25-30 ℃;
Sawed-off:
Utilize the saw rod machine of saw duraluminum cylinder ingot that aluminium silicon master alloy body length ingot is sawn into some segments.
2. according to the melting technology of right 1 described aluminium silicon master alloy, it is characterized in that: described permanent magnetism stirrer was by time 10-15 minute that stirs along the inverse time.
3. according to the melting technology of right 1 described aluminium silicon master alloy, it is characterized in that: the melt time of repose is 8-10 minute after described slagging-off, the degasification completely.
4. according to the melting technology of right 1 described a kind of aluminium silicon master alloy, it is characterized in that: described refining agent is that twice pair of melt of Al-Ti-B silk carries out abundant grain refining behind stokehold Al-Ti-B agent and the stove.
5. according to the melting technology of right 1 described aluminium silicon master alloy, it is characterized in that: described casting temp is 720 ℃.
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| CN201210123317.5A CN102618738B (en) | 2012-04-24 | 2012-04-24 | Smelting process for aluminum-silicon master alloy |
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| CN201210123317.5A CN102618738B (en) | 2012-04-24 | 2012-04-24 | Smelting process for aluminum-silicon master alloy |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289696A (en) * | 2013-07-17 | 2015-01-21 | 台州市朗禾机械有限公司 | Engine aluminum cylinder body low-pressure casting method |
| CN104388769A (en) * | 2014-10-31 | 2015-03-04 | 抚顺东工冶金材料技术有限公司 | High-purity aluminum-silicon (Al-Si) intermediate alloy and production method thereof |
| CN105543517A (en) * | 2015-12-18 | 2016-05-04 | 西南铝业（集团）有限责任公司 | Preparation method for aluminum-silicon intermediate alloy |
| CN106435293A (en) * | 2016-09-18 | 2017-02-22 | 云南云铝涌鑫铝业有限公司 | Method for preparing aluminium-silicon-magnesium alloy |
| CN109609790A (en) * | 2019-01-28 | 2019-04-12 | 苏州铭恒金属科技有限公司 | A kind of aluminium alloy and its casting method |
| CN109652668A (en) * | 2019-01-31 | 2019-04-19 | 青海桥头铝电股份有限公司 | A kind of production method of aluminum bronze intermediate alloy |
| CN109881054A (en) * | 2019-04-17 | 2019-06-14 | 广东省焊接技术研究所（广东省中乌研究院） | A kind of al-si filler metal and preparation method thereof |
| CN111270111A (en) * | 2020-04-01 | 2020-06-12 | 湖南理工学院 | Aluminum-silicon alloy containing Ti and B and preparation method thereof |
| CN111378887A (en) * | 2020-02-28 | 2020-07-07 | 深圳市新星轻合金材料股份有限公司 | Silicon-aluminum alloy and preparation method thereof |
| CN112481526A (en) * | 2019-09-12 | 2021-03-12 | 晟通科技集团有限公司 | Production method of aluminum-silicon alloy rod |
| CN113774257A (en) * | 2021-08-26 | 2021-12-10 | 山东创新金属科技有限公司 | Short-flow production process of aluminum-silicon-magnesium cast aluminum alloy |
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- 2012-04-24 CN CN201210123317.5A patent/CN102618738B/en not_active Expired - Fee Related
Patent Citations (4)
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| CN101509089A (en) * | 2008-12-30 | 2009-08-19 | 毕祥玉 | Intermediate Al-Si alloy and method of manufacturing the same |
| CN101660883A (en) * | 2009-09-04 | 2010-03-03 | 东莞市奥达铝业有限公司 | Manufacturing method of vehicle aluminum alloy radiating fin |
| CN102140589A (en) * | 2011-05-05 | 2011-08-03 | 山东创新金属科技股份有限公司 | Microalloy smelting process for aluminum-magnesium-silicon aluminum alloy |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289696A (en) * | 2013-07-17 | 2015-01-21 | 台州市朗禾机械有限公司 | Engine aluminum cylinder body low-pressure casting method |
| CN104388769A (en) * | 2014-10-31 | 2015-03-04 | 抚顺东工冶金材料技术有限公司 | High-purity aluminum-silicon (Al-Si) intermediate alloy and production method thereof |
| CN105543517A (en) * | 2015-12-18 | 2016-05-04 | 西南铝业（集团）有限责任公司 | Preparation method for aluminum-silicon intermediate alloy |
| CN105543517B (en) * | 2015-12-18 | 2018-01-26 | 西南铝业（集团）有限责任公司 | A kind of aluminium silicon intermediate alloy preparation method |
| CN106435293A (en) * | 2016-09-18 | 2017-02-22 | 云南云铝涌鑫铝业有限公司 | Method for preparing aluminium-silicon-magnesium alloy |
| CN109609790B (en) * | 2019-01-28 | 2021-08-13 | 苏州铭恒金属科技有限公司 | Aluminum alloy and casting method thereof |
| CN109609790A (en) * | 2019-01-28 | 2019-04-12 | 苏州铭恒金属科技有限公司 | A kind of aluminium alloy and its casting method |
| CN109652668A (en) * | 2019-01-31 | 2019-04-19 | 青海桥头铝电股份有限公司 | A kind of production method of aluminum bronze intermediate alloy |
| CN109881054A (en) * | 2019-04-17 | 2019-06-14 | 广东省焊接技术研究所（广东省中乌研究院） | A kind of al-si filler metal and preparation method thereof |
| CN112481526A (en) * | 2019-09-12 | 2021-03-12 | 晟通科技集团有限公司 | Production method of aluminum-silicon alloy rod |
| CN111378887A (en) * | 2020-02-28 | 2020-07-07 | 深圳市新星轻合金材料股份有限公司 | Silicon-aluminum alloy and preparation method thereof |
| CN111270111A (en) * | 2020-04-01 | 2020-06-12 | 湖南理工学院 | Aluminum-silicon alloy containing Ti and B and preparation method thereof |
| CN113774257A (en) * | 2021-08-26 | 2021-12-10 | 山东创新金属科技有限公司 | Short-flow production process of aluminum-silicon-magnesium cast aluminum alloy |
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| CN102618738B (en) | 2014-07-09 |
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