CN109082546A - A kind of ZAlCu5Mn melting cast aluminum alloy technique - Google Patents
A kind of ZAlCu5Mn melting cast aluminum alloy technique Download PDFInfo
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- CN109082546A CN109082546A CN201810972430.8A CN201810972430A CN109082546A CN 109082546 A CN109082546 A CN 109082546A CN 201810972430 A CN201810972430 A CN 201810972430A CN 109082546 A CN109082546 A CN 109082546A
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- molten aluminum
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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
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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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
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- Materials Engineering (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Continuous Casting (AREA)
Abstract
The present invention relates to a kind of ZAlCu5Mn melting cast aluminum alloy techniques, it is characterised in that: specific step is as follows: S1: the melting of aluminium ingot；S2: the temperature control of molten aluminum；S3: molten aluminum sample block it is prefabricated；S4: the chilling of molten aluminum；S5: the stirring of molten aluminum；S6: the addition of refining agent；Molten aluminum is heated to be stirred in certain temperature section in the present invention, is being further increased to a certain specific temperature, is carrying out chilling, then degasification removes the gred；Good aluminium alloy is obtained, avoids casting generation hot tearing and shrinkage cavity, casting air-tightness good；The chilling step of molten aluminum not only simple cooling, moreover it is possible to improve melt viscosity, reduce convection current, prevent from being segregated, improve nucleating condition, play refining effect；Adjacent crystal grain is hindered to grow up.
Description
Technical field
The present invention relates to aluminium alloy smelting field more particularly to a kind of ZAlCu5Mn melting cast aluminum alloy techniques.
Background technique
Aluminium alloy is the alloy general name based on aluminium, and main alloy element has copper, silicon, magnesium, zinc or manganese, secondary alloy member
It is known as nickel, iron, titanium, chromium or lithium etc..The processing performance of aluminium alloy is good, especially hypoeutectic silico-aluminum, and not only processing performance is good,
And light specific gravity, surface aesthetic and corrosion-resistant, good casting property, product comprehensive mechanical property is good, can be used for making variform
Component, aluminium and its alloy favored from ancient times due to excellent mechanical property, corrosion resistance, processability, simultaneously
In addition the low-density of 2 .17g/cm2 is used widely in many fields.Main material of the aluminium alloy as auto parts and components
Material is at home and abroad widely used in manufacturing car door, invisible position etc. in vehicle window and body structure.
The trade mark is the aluminium alloy of ZL201, also known as ZAlCu5Mn cast aluminium alloy gold；It is heat-treatable strengthened, intensity after heat treatment
Height, heat resistance and intensity be it is best in cast aluminium alloy gold, still, ZL201 aluminium alloy casting character is bad, forms hot tearing and contracting
Hole tendency is big, and linear shrinkage is big, and air-tightness is low.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of ZAlCu5Mn melting cast aluminum alloy techniques, are able to solve one
As ZAlCu5Mn cast aluminium alloy gold formed hot tearing and shrinkage cavity tendency it is big, linear shrinkage is big, the low problem of air-tightness.
In order to solve the above technical problems, the technical solution of the present invention is as follows: a kind of ZAlCu5Mn melting cast aluminum alloy technique,
Its innovative point is: specific step is as follows:
S1: the melting of aluminium ingot: being warming up to 730 DEG C of formation molten aluminums for aluminium ingot, starts stirring, stands alternately and continue to heat；
S2: the temperature control of molten aluminum: temperature of aluminum liquid is risen into 760 DEG C of -770 DEG C of constant temperature and is kept, continues to stir quiet to alternately
15min-20min；
S3: molten aluminum sample block it is prefabricated: the oxide skin on molten aluminum surface layer and slag inclusion sundries in crucible are skimmed by melting tool, use tool
A small amount of molten aluminum is scooped into clean ingot mould, cooling 5min-6min forms several prefabricated aluminium ingot sample blocks；
S4: several prefabricated aluminium ingot sample blocks of cooling 5min-6min the chilling of molten aluminum: are put into 760 DEG C -770 DEG C of molten aluminum
In to molten aluminum carry out chilling；By the quantity that control puts into prefabricated aluminium ingot sample block temperature of aluminum liquid is controlled at 730 DEG C -740 DEG C
Between cast temperature；
S5: the stirring of molten aluminum: when the temperature of molten aluminum is reduced to 730 DEG C -740 DEG C by 760 DEG C -770 DEG C, molten aluminum is stirred immediately
It mixes 5min-6min and guarantees temperature at 730 DEG C -740 DEG C；
S6: the addition of refining agent: by refining agent be divided into three parts of equivalent be added in molten aluminum in three times and three times addition refining agent it
Between time interval be 8min-10min；Third time add refining agent after immediately by the temperature of molten aluminum be reduced to 717 DEG C-
Between 723 DEG C；Refining agent scratches clean dregs after adding.
The present invention has the advantages that
1) molten aluminum is heated to be stirred in certain temperature section in the present invention, is being further increased to a certain specific temperature, carries out
Chilling, then degasification removes the gred；Good aluminium alloy is obtained, avoids casting generation hot tearing and shrinkage cavity, casting air-tightness good；Molten aluminum
Chilling step not only simple cooling, moreover it is possible to improve melt viscosity, reduce convection current, prevent from being segregated, improve nucleating condition, play refinement
Effect；Adjacent crystal grain is hindered to grow up.
Specific embodiment
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among the embodiment described range.
A kind of AlCu5Mn melting cast aluminum alloy technique, the specific steps are as follows:
S1: the melting of aluminium ingot: being warming up to 730 DEG C of formation molten aluminums for aluminium ingot, starts stirring, stands alternately and continue to heat.
S2: the temperature control of molten aluminum: temperature of aluminum liquid is risen into 760 DEG C of -770 DEG C of constant temperature and is kept, continues to stir quiet to alternately
15min-20min。
S3: molten aluminum sample block it is prefabricated: the oxide skin on molten aluminum surface layer and slag inclusion sundries in crucible are skimmed by melting tool, use
A small amount of molten aluminum is scooped into clean ingot mould by tool, and cooling 5min-6min forms several prefabricated aluminium ingot sample blocks.
S4: several prefabricated aluminium ingot sample blocks of cooling 5min-6min the chilling of molten aluminum: are put into 760 DEG C -770 DEG C
Chilling is carried out to molten aluminum in molten aluminum；By the quantity that control puts into prefabricated aluminium ingot sample block make temperature of aluminum liquid control 730 DEG C-
Cast temperature between 740 DEG C.
S5: the stirring of molten aluminum: when the temperature of molten aluminum is reduced to 730 DEG C -740 DEG C by 760 DEG C -770 DEG C, immediately to molten aluminum into
Row stirring 5min-6min simultaneously guarantees temperature at 730 DEG C -740 DEG C.
S6: the addition of refining agent: refining agent is divided into three parts of equivalent and is added in molten aluminum in three times and addition refines three times
Time interval between agent is 8min-10min；The temperature of molten aluminum is reduced to immediately after third time adds refining agent
Between 717 DEG C -723 DEG C；Refining agent scratches clean dregs after adding.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, above-described embodiment and explanation
It is merely illustrated the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
It is defined by the appending claims and its equivalent thereof.
Claims (1)
1. a kind of ZAlCu5Mn melting cast aluminum alloy technique, it is characterised in that: specific step is as follows:
S1: the melting of aluminium ingot: being warming up to 730 DEG C of formation molten aluminums for aluminium ingot, starts stirring, stands alternately and continue to heat；
S2: the temperature control of molten aluminum: temperature of aluminum liquid is risen into 760 DEG C of -770 DEG C of constant temperature and is kept, continues to stir quiet to alternately
15min-20min；
S3: molten aluminum sample block it is prefabricated: the oxide skin on molten aluminum surface layer and slag inclusion sundries in crucible are skimmed by melting tool, use tool
A small amount of molten aluminum is scooped into clean ingot mould, cooling 5min-6min forms several prefabricated aluminium ingot sample blocks；
S4: several prefabricated aluminium ingot sample blocks of cooling 5min-6min the chilling of molten aluminum: are put into 760 DEG C -770 DEG C of molten aluminum
In to molten aluminum carry out chilling；By the quantity that control puts into prefabricated aluminium ingot sample block temperature of aluminum liquid is controlled at 730 DEG C -740 DEG C
Between cast temperature；
S5: the stirring of molten aluminum: when the temperature of molten aluminum is reduced to 730 DEG C -740 DEG C by 760 DEG C -770 DEG C, molten aluminum is stirred immediately
It mixes 5min-6min and guarantees temperature at 730 DEG C -740 DEG C；
S6: the addition of refining agent: by refining agent be divided into three parts of equivalent be added in molten aluminum in three times and three times addition refining agent it
Between time interval be 8min-10min；Third time add refining agent after immediately by the temperature of molten aluminum be reduced to 717 DEG C-
Between 723 DEG C；Refining agent scratches clean dregs after adding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810972430.8A CN109082546A (en) | 2018-08-24 | 2018-08-24 | A kind of ZAlCu5Mn melting cast aluminum alloy technique |
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| CN201810972430.8A CN109082546A (en) | 2018-08-24 | 2018-08-24 | A kind of ZAlCu5Mn melting cast aluminum alloy technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106377A (en) * | 2019-06-11 | 2019-08-09 | 天津圣金特汽车配件有限公司 | A kind of automobile engine bracket aluminum melting process |
| CN110904352A (en) * | 2019-12-05 | 2020-03-24 | 南通爱尔思轻合金精密成型有限公司 | Smelting homogenization process for ZL201 cast aluminum alloy |
Citations (5)
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| CN1958818A (en) * | 2005-11-02 | 2007-05-09 | 沈阳铸造研究所 | Method for melting cast aluminum alloy |
| CN104138921A (en) * | 2014-06-16 | 2014-11-12 | 西安西工大超晶科技发展有限责任公司 | Preparation method of in-situ synthesized aluminum-based composite bar |
| CN107034372A (en) * | 2017-03-17 | 2017-08-11 | 黄河科技学院 | A kind of preparation method of High Strength Cast Aluminum Alloy |
| CN107779704A (en) * | 2017-10-24 | 2018-03-09 | 辽宁忠旺集团有限公司 | A kind of 2 line aluminium alloys and its melting and casting method |
| CN108085546A (en) * | 2018-01-30 | 2018-05-29 | 营口忠旺铝业有限公司 | A kind of 2024 aluminium alloy smelting casting methods |
-
2018
- 2018-08-24 CN CN201810972430.8A patent/CN109082546A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958818A (en) * | 2005-11-02 | 2007-05-09 | 沈阳铸造研究所 | Method for melting cast aluminum alloy |
| CN104138921A (en) * | 2014-06-16 | 2014-11-12 | 西安西工大超晶科技发展有限责任公司 | Preparation method of in-situ synthesized aluminum-based composite bar |
| CN107034372A (en) * | 2017-03-17 | 2017-08-11 | 黄河科技学院 | A kind of preparation method of High Strength Cast Aluminum Alloy |
| CN107779704A (en) * | 2017-10-24 | 2018-03-09 | 辽宁忠旺集团有限公司 | A kind of 2 line aluminium alloys and its melting and casting method |
| CN108085546A (en) * | 2018-01-30 | 2018-05-29 | 营口忠旺铝业有限公司 | A kind of 2024 aluminium alloy smelting casting methods |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106377A (en) * | 2019-06-11 | 2019-08-09 | 天津圣金特汽车配件有限公司 | A kind of automobile engine bracket aluminum melting process |
| CN110904352A (en) * | 2019-12-05 | 2020-03-24 | 南通爱尔思轻合金精密成型有限公司 | Smelting homogenization process for ZL201 cast aluminum alloy |
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