CN104561618B - Aluminum-copper alloy melting method - Google Patents
Aluminum-copper alloy melting method Download PDFInfo
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- CN104561618B CN104561618B CN201510030405.4A CN201510030405A CN104561618B CN 104561618 B CN104561618 B CN 104561618B CN 201510030405 A CN201510030405 A CN 201510030405A CN 104561618 B CN104561618 B CN 104561618B
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- aluminum
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- fine copper
- copper
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- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 73
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 238000002844 melting Methods 0.000 title claims abstract description 37
- 230000008018 melting Effects 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 35
- 229910052802 copper Inorganic materials 0.000 claims abstract description 116
- 239000010949 copper Substances 0.000 claims abstract description 116
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 110
- 239000007788 liquid Substances 0.000 claims abstract description 80
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 71
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000004411 aluminium Substances 0.000 claims abstract description 61
- 238000003780 insertion Methods 0.000 claims abstract description 18
- 230000037431 insertion Effects 0.000 claims abstract description 18
- 238000009792 diffusion process Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 34
- 238000007499 fusion processing Methods 0.000 claims description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- CVOFKRWYWCSDMA-UHFFFAOYSA-N 2-chloro-n-(2,6-diethylphenyl)-n-(methoxymethyl)acetamide;2,6-dinitro-n,n-dipropyl-4-(trifluoromethyl)aniline Chemical compound CCC1=CC=CC(CC)=C1N(COC)C(=O)CCl.CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O CVOFKRWYWCSDMA-UHFFFAOYSA-N 0.000 claims description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 238000005275 alloying Methods 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000005204 segregation Methods 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present invention provides a kind of aluminum-copper alloy melting method, comprises step: the N root fine copper pipe of selection caliber to be 6��8mm, wall thickness be 1��2mm; Calculate the length L of required fine copper pipePipe; Pure elemental aluminum raw material is warmed up to 730��750 DEG C and forms pure aluminium liquid; Be 0.11��0.13MPa, temperature by one end cut-in pressure of each fine copper pipe it is the non-reactive gas of room temperature, the other end is inserted in pure aluminium liquid; The length immersing the part of the fine copper pipe in pure aluminium liquid is L1 and L2 sum, the fine copper tube portion that length is the relative low temperature of L1 can continus convergence non-reactive gas, the fine copper tube portion that length is the relatively-high temperature of L2 can fuse into pure aluminium liquid formation aluminum-copper alloy liquid in 2��3 minutes, and the non-reactive gas exported from the other end makes pure aluminium liquid and aluminum-copper alloy liquid form Convention diffusion upward and outward in the region that L2 is corresponding; Every 2��3 minutes, each fine copper pipe is increased insertion length L2, until the insertion of N root fine copper pipe reaches length LPipe; Stop each fine copper pipe of insertion, continue to lead to into non-reactive gas 10��15 minutes.
Description
Technical field
The present invention relates to aluminum-copper alloy melting field, particularly relate to a kind of aluminum-copper alloy melting method.
Background technology
In aluminum-copper alloy melting, the Adding Way of copper has intermediate alloy process and direct smelting process. Intermediate alloy process to be implemented twice melting, for a long time consuming time, and energy consumption is big. Direct smelting process directly fine copper batching is added melting in aluminium liquid to obtain subject alloy. No matter being intermediate alloy process or direct smelting process, the density variation of aluminium and copper and the change of curing condition cause the aluminum-copper alloy finally obtained to there is copper component segregation. Thus in aluminum-copper alloy fusion process, also to be carried out long-time insulation and stir (being generally induction stirring). So considerably increase the energy consumption in aluminum-copper alloy fusion process to drop into and equipment investment.
Summary of the invention
In view of Problems existing in background technology, it is an object of the invention to provide a kind of aluminum-copper alloy melting method, it can obtain aluminium copper component is even, segregation is little, gas hole defect is few target aluminum-copper alloy.
In order to realize above-mentioned purpose, the present invention provides a kind of aluminum-copper alloy melting method, and it comprises step: the N root fine copper pipe of selection caliber to be 6mm��8mm, wall thickness be 1mm��2mm, N >=1; Massfraction C according to copper in the aluminum-copper alloy to be preparedCopperAnd the total mass M of the aluminum-copper alloy to be preparedAlwaysCalculate the mass M of the copper that needs addCopper, MCopper=MAlways��CCopper; Calculate the required length L consuming the fine copper pipe fallenPipe, LPipe=MCopper/(��Copper��STube section); Massfraction C according to aluminium element in the aluminum-copper alloy to be preparedAluminiumAnd the total mass M of the aluminum-copper alloy to be preparedAlwaysCalculate the quality of the pure elemental aluminum raw material that needs add; The pure elemental aluminum raw material of the aluminum-copper alloy that will prepare is warmed up to 730��750 DEG C, makes pure elemental aluminum melting sources form pure aluminium liquid, makes the liquid level of pure aluminium liquid between 100mm��300mm, and pure aluminium liquid is carried out thermal insulation deslagging; Be 0.11MPa��0.13MPa, temperature by one end cut-in pressure of each fine copper pipe of sufficient length it is the non-reactive gas of room temperature, the other end is inserted in pure aluminium liquid, non-reactive gas carried along its length by each fine copper pipe, so that immersing the thermograde that formation temperature raises gradually along its length from aluminium liquid liquid level of the fine copper tube portion in pure aluminium liquid downwards; The length immersing the part of each fine copper pipe in pure aluminium liquid downward along its length from aluminium liquid liquid level is L1 and L2 sum, wherein, the fine copper tube portion that length is the relative low temperature of L1 can non-reactive gas described in continus convergence, and the fine copper tube portion of relatively-high temperature that length is L2 can fuse into pure aluminium liquid in 2��3 minutes and forms aluminum-copper alloy liquid, and the value of L2/L1 is between 1/3��1/2, the non-reactive gas wherein exported from the other end makes pure aluminium liquid and aluminum-copper alloy liquid form Convention diffusion upward and outward in the region that L2 is corresponding; Every 2��3 minutes, each fine copper Guan Xiangchun aluminium liquid will increase insertion length L2, if the length L of fine copper pipe that required consumption is fallenPipeInteger divided by L2*N gained is K, then each fine copper pipe increases the number of times of insertion is K, until the insertion of N root fine copper pipe reaches the required length L consuming the fine copper pipe fallenPipeIf, the length L of the fine copper pipe that required consumption is fallenPipeIt is not zero divided by L2*K*N gained remainder, then last by length LPipeComplementing part divided by L2*K*N gained is shared on all or part of fine copper pipe, so that the fine copper pipe of correspondence has is less than sharing part and making the part of sharing of this correspondence fine copper pipe extend under L1 of L2; Each fine copper pipe insertion stops increasing, and continues to lead to into non-reactive gas 10��15 minutes; By each residue fine copper pipe pull out aluminium liquid liquid level, stop non-reactive gas lead to into, complete aluminum-copper alloy fusion process; Wherein: the total length L of each fine copper pipeAlwaysIt is greater than L2*K and L1 sum and guarantees to hold from outside and lead to into non-reactive gas.
The useful effect of the present invention is as follows:
Non-reacted air-flow owing to exporting from the other end of fine copper pipe directly acts on alloying region, pure aluminium liquid and aluminum-copper alloy liquid is made to form Convention diffusion upward and outward in the alloying region that L2 is corresponding, aluminum-copper alloy liquid upwards can flow with air-flow, and then flow to both sides, the aluminium liquid of different sites is made to form convection current, promote the diffusion of alloying constituent copper, lead to simultaneously into non-reactive gas can by pure aluminium liquid suck obnoxious flavour take aluminum-copper alloy outside out of, therefore, the aluminum-copper alloy melting method of the present invention is while realizing the quantitative proportioning of copper in aluminum-copper alloy, abundant Convention diffusion can also be carried out, thus it is even to obtain aluminium copper component with high-level efficiency, segregation is little, the target aluminum-copper alloy that gas hole defect is few.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the aluminum-copper alloy melting according to the present invention when starting, and for the sake of clarity, only illustrates a fine copper pipe;
Fig. 2 is the schematic diagram in the aluminum-copper alloy fusion process according to the present invention, for the sake of clarity, only illustrates a fine copper pipe.
Embodiment
Carry out the aluminum-copper alloy melting method illustrated in detail according to the present invention with reference to the accompanying drawings.
With reference to Fig. 1 and Fig. 2, comprise step according to the aluminum-copper alloy melting method of the present invention: the N root fine copper pipe of selection caliber to be 6mm��8mm, wall thickness be 1mm��2mm, N >=1; Massfraction C according to copper in the aluminum-copper alloy to be preparedCopperAnd the total mass M of the aluminum-copper alloy to be preparedAlwaysCalculate the mass M of the copper that needs addCopper, MCopper=MAlways��CCopper; Calculate the required length L consuming the fine copper pipe fallenPipe, LPipe=MCopper/(��Copper��STube section); Massfraction C according to aluminium element in the aluminum-copper alloy to be preparedAluminiumAnd the total mass M of the aluminum-copper alloy to be preparedAlwaysCalculate the quality of the pure elemental aluminum raw material that needs add, the pure elemental aluminum raw material of the aluminum-copper alloy that will prepare is warmed up to 730��750 DEG C, makes pure elemental aluminum melting sources form pure aluminium liquid, makes the liquid level of pure aluminium liquid between 100mm��300mm, and pure aluminium liquid is carried out thermal insulation deslagging, it is that (pressure is greater than 0.13MPa and there will be liquid splash 0.11MPa��0.13MPa by one end cut-in pressure of each fine copper pipe of sufficient length, pressure is less than 0.11MPa then cannot form effective liquid convection), temperature be the non-reactive gas of room temperature, the other end is inserted in pure aluminium liquid, non-reactive gas carried along its length by each fine copper pipe, so that immersing the thermograde (with reference to Fig. 1) that formation temperature raises gradually along its length from aluminium liquid liquid level of the fine copper tube portion in pure aluminium liquid downwards, the length immersing the part of each fine copper pipe in pure aluminium liquid downward along its length from aluminium liquid liquid level is L1 and L2 sum, wherein, the fine copper tube portion that length is the relative low temperature of L1 can non-reactive gas described in continus convergence, and the fine copper tube portion of relatively-high temperature that length is L2 can fuse into pure aluminium liquid in 2��3 minutes and forms aluminum-copper alloy liquid, and the value of L2/L1 is between 1/3��1/2, the non-reactive gas wherein exported from the other end makes pure aluminium liquid and aluminum-copper alloy liquid in (i.e. alloying region, region corresponding to L2, with reference to Fig. 2) form Convention diffusion upward and outward (with reference to Fig. 2), every 2��3 minutes, each fine copper Guan Xiangchun aluminium liquid will increase insertion length L2, if the length L of fine copper pipe that required consumption is fallenPipeInteger divided by L2*N gained is K, then each fine copper pipe increases the number of times of insertion is K, until the insertion of N root fine copper pipe reaches the required length L consuming the fine copper pipe fallenPipeIf, the length L of the fine copper pipe that required consumption is fallenPipeIt is not zero divided by L2*K*N gained remainder, then last by length LPipeComplementing part divided by L2*K*N gained is shared on all or part of fine copper pipe, so that the fine copper pipe of correspondence has is less than sharing part and making the part of sharing of this correspondence fine copper pipe extend under L1 of L2; Each fine copper pipe insertion stops increasing, and continues to lead to into non-reactive gas 10��15 minutes; By each residue fine copper pipe pull out aluminium liquid liquid level, stop non-reactive gas lead to into, complete aluminum-copper alloy fusion process; Wherein: the total length L of each fine copper pipeAlwaysIt is greater than L2*K and L1 sum and guarantees to hold from outside and lead to into non-reactive gas.
Non-reacted air-flow owing to exporting from the other end of fine copper pipe directly acts on alloying region, make pure aluminium liquid and aluminum-copper alloy liquid in (i.e. alloying region, alloying region corresponding to L2, with reference to Fig. 2) form Convention diffusion upward and outward, aluminum-copper alloy liquid upwards can flow with air-flow, and then flow to both sides, the aluminium liquid of different sites is made to form convection current, promote the diffusion of alloying constituent copper, lead to simultaneously into non-reactive gas can by pure aluminium liquid suck obnoxious flavour take aluminum-copper alloy outside out of, therefore, the aluminum-copper alloy melting method of the present invention is while realizing the quantitative proportioning of copper in aluminum-copper alloy, abundant Convention diffusion can also be carried out, thus it is even to obtain aluminium copper component with high-level efficiency, segregation is little, the target aluminum-copper alloy that gas hole defect is few.
In the aluminum-copper alloy melting method according to the present invention, the copper content of fine copper pipe can be 99.99%. In the aluminum-copper alloy melting method according to the present invention, nonreactive gas can be rare gas element or nitrogen.
In the aluminum-copper alloy melting method according to the present invention, rare gas element can be argon gas.
In the aluminum-copper alloy melting method according to the present invention, the other end of fine copper pipe vertically inserts or tilts in insertion (with reference to Fig. 1 and Fig. 2) pure aluminium liquid.
In the aluminum-copper alloy melting method according to the present invention, room temperature can be 20��30 DEG C.
In the aluminum-copper alloy melting method according to the present invention, N=1, and length LPipeComplementing part divided by length L2*K*N gained is all shared on a fine copper pipe.
In the aluminum-copper alloy melting method according to the present invention, N > 1, N root fine copper pipe inserts in pure aluminium liquid successively, and length LPipeComplementing part divided by length L2*K*N gained is shared on all or part of fine copper pipe.
In the aluminum-copper alloy melting method according to the present invention, N > 1, N root fine copper pipe inserts in pure aluminium liquid simultaneously, and length LPipeComplementing part divided by length L2*K*N gained is shared on all or part of fine copper pipe.
In the aluminum-copper alloy melting method according to the present invention, each fine copper Guan Shangke indicates scale, marks the L2 of every time insertion and the length L of fine copper pipe that required consumption is fallenPipe��
Claims (10)
1. an aluminum-copper alloy melting method, it is characterised in that, comprise step:
The N root fine copper pipe of selection caliber to be 6mm��8mm, wall thickness be 1mm��2mm, N >=1;
Massfraction C according to copper in the aluminum-copper alloy to be preparedCopperAnd the total mass M of the aluminum-copper alloy to be preparedAlwaysCalculate the mass M of the copper that needs addCopper, MCopper=MAlways��CCopper;
Calculate the required length L consuming the fine copper pipe fallenPipe, LPipe=MCopper/(��Copper��STube section);
Massfraction C according to aluminium element in the aluminum-copper alloy to be preparedAluminiumAnd the total mass M of the aluminum-copper alloy to be preparedAlwaysCalculate the quality of the pure elemental aluminum raw material that needs add;
The pure elemental aluminum raw material of the aluminum-copper alloy that will prepare is warmed up to 730��750 DEG C, makes pure elemental aluminum melting sources form pure aluminium liquid, makes the liquid level of pure aluminium liquid between 100mm��300mm, and pure aluminium liquid is carried out thermal insulation deslagging;
Be 0.11MPa��0.13MPa, temperature by one end cut-in pressure of each fine copper pipe of sufficient length it is the non-reactive gas of room temperature, the other end is inserted in pure aluminium liquid, non-reactive gas carried along its length by each fine copper pipe, so that immersing the thermograde that formation temperature raises gradually along its length from aluminium liquid liquid level of the fine copper tube portion in pure aluminium liquid downwards;
The length immersing the part of each fine copper pipe in pure aluminium liquid downward along its length from aluminium liquid liquid level is L1 and L2 sum, wherein, the fine copper tube portion that length is the relative low temperature of L1 can non-reactive gas described in continus convergence, and the fine copper tube portion of relatively-high temperature that length is L2 can fuse into pure aluminium liquid in 2��3 minutes and forms aluminum-copper alloy liquid, and the value of L2/L1 is between 1/3��1/2, the non-reactive gas wherein exported from the other end makes pure aluminium liquid and aluminum-copper alloy liquid form Convention diffusion upward and outward in the region that L2 is corresponding;
Every 2��3 minutes, each fine copper Guan Xiangchun aluminium liquid will increase insertion length L2, if the length L of fine copper pipe that required consumption is fallenPipeInteger divided by L2*N gained is K, then each fine copper pipe increases the number of times of insertion is K, until the insertion of N root fine copper pipe reaches the required length L consuming the fine copper pipe fallenPipeIf, the length L of the fine copper pipe that required consumption is fallenPipeRemainder divided by L2*K*N gained is not zero, then last by length LPipeComplementing part divided by L2*K*N gained is shared on all or part of fine copper pipe, so that the fine copper pipe of correspondence has is less than sharing part and making the part of sharing of this correspondence fine copper pipe extend under L1 of L2;
Each fine copper pipe insertion stops increasing, and continues to lead to into non-reactive gas 10��15 minutes;
Each residue fine copper pipe is pulled out pure aluminium liquid liquid level, stop non-reactive gas lead to into, complete aluminum-copper alloy fusion process;
Wherein:
The total length L of each fine copper pipeAlwaysIt is greater than L2*K and L1 sum and guarantees to hold from outside and lead to into non-reactive gas.
2. aluminum-copper alloy melting method according to claim 1, it is characterised in that, the copper content of fine copper pipe is 99.99%.
3. aluminum-copper alloy melting method according to claim 1, it is characterised in that, nonreactive gas is rare gas element or nitrogen.
4. aluminum-copper alloy melting method according to claim 3, it is characterised in that, rare gas element is argon gas.
5. aluminum-copper alloy melting method according to claim 1, it is characterised in that, the other end of fine copper pipe vertically inserts or tilts to insert in pure aluminium liquid.
6. aluminum-copper alloy melting method according to claim 1, it is characterised in that, room temperature is 20��30 DEG C.
7. aluminum-copper alloy melting method according to claim 1, it is characterised in that, N=1, and length LPipeComplementing part divided by length L2*K*N gained is all shared on a fine copper pipe.
8. aluminum-copper alloy melting method according to claim 1, it is characterised in that, N > 1, N root fine copper pipe inserts in pure aluminium liquid successively, and length LPipeComplementing part divided by length L2*K*N gained is shared on all or part of fine copper pipe.
9. aluminum-copper alloy melting method according to claim 1, it is characterised in that, N > 1, N root fine copper pipe inserts in pure aluminium liquid simultaneously, and length LPipeComplementing part divided by length L2*K*N gained is shared on all or part of fine copper pipe.
10. aluminum-copper alloy melting method according to any one of claim 7-9, it is characterised in that, each fine copper pipe is marked with scale, marks the L2 of insertion every time and the length L of this fine copper pipe that required consumption is fallenPipe��
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510030405.4A CN104561618B (en) | 2015-01-21 | 2015-01-21 | Aluminum-copper alloy melting method |
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| CN201510030405.4A CN104561618B (en) | 2015-01-21 | 2015-01-21 | Aluminum-copper alloy melting method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103667829A (en) * | 2013-12-27 | 2014-03-26 | 安徽欣意电缆有限公司 | Al-Cu aluminum alloy, preparation method thereof and aluminum alloy cable |
| CN103667830A (en) * | 2013-12-27 | 2014-03-26 | 安徽欣意电缆有限公司 | Al-Fe-Cu-RE aluminum alloy, preparation method thereof and aluminum alloy cable |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103667829A (en) * | 2013-12-27 | 2014-03-26 | 安徽欣意电缆有限公司 | Al-Cu aluminum alloy, preparation method thereof and aluminum alloy cable |
| CN103667830A (en) * | 2013-12-27 | 2014-03-26 | 安徽欣意电缆有限公司 | Al-Fe-Cu-RE aluminum alloy, preparation method thereof and aluminum alloy cable |
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