CN104561618A - Aluminum-copper alloy smelting method - Google Patents
Aluminum-copper alloy smelting method Download PDFInfo
- Publication number
- CN104561618A CN104561618A CN201510030405.4A CN201510030405A CN104561618A CN 104561618 A CN104561618 A CN 104561618A CN 201510030405 A CN201510030405 A CN 201510030405A CN 104561618 A CN104561618 A CN 104561618A
- Authority
- CN
- China
- Prior art keywords
- aluminum
- pure
- length
- copper tube
- pure copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses an aluminum-copper alloy smelting method. The aluminum-copper alloy smelting method comprises the following steps: selecting N pure copper tubes, wherein the pipe diameters of the pure copper tubes are 6mm-8mm, and the wall thicknesses of the pure copper tubes are 1mm-2mm; counting the length Ltube of the required pure copper tube; heating a pure aluminum element raw material to be 730-750 DEG C to form pure molten aluminum; feeding one end of each pure copper tube into non-reactive gas with the pressure of 0.11MPa-0.13MPa at room temperature, and inserting the other end of each pure copper tube into the pure molten aluminum, wherein the length of the pure copper tube part dipped in the pure molten aluminum is equal to the sum of L1 and L2, the relative-low-temperature pure copper tube part with the length of L1 can be utilized for continuously conveying non-reactive gas, the relative-high-temperature pure copper tube part with the length of L2 can be fused into the pure molten aluminum within 2-3 minutes to form aluminum-copper alloying liquid, and the pure molten aluminum and the aluminum-copper alloying liquid are convected and diffused upwards and outwards in the corresponding region of L2 by virtue of non-reactive gas output from the other end of the relative-high-temperature pure copper tube part; inserting each pure copper tube by the length L2 by every 2-3 minutes until the lengths of the N inserted pure copper tubes reach the length Ltube; stopping the insertion of each pure copper tube, and further supplying non-reactive gas for 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 will implement twice melting, for a long time consuming time, and energy consumption is large.Direct smelting process directly fine copper batching is added melting in aluminium liquid to obtain subject alloy.No matter be 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 carry out insulation for a long time and stir (being generally induction stirring).The energy consumption so considerably increased in aluminum-copper alloy fusion process drops into and equipment investment.
Summary of the invention
In view of Problems existing in background technology, the object of the present invention is to provide a kind of aluminum-copper alloy melting method, the target aluminum-copper alloy that it can obtain aluminum bronze uniform composition, segregation is little, gas hole defect is few.
To achieve these goals, the invention provides a kind of aluminum-copper alloy melting method, it comprises step: the N root pure copper tube that selection caliber is 6mm ~ 8mm, wall thickness is 1mm ~ 2mm, N>=1; According to the massfraction C of copper in the aluminum-copper alloy that will prepare
copperand the total mass M of the aluminum-copper alloy that will prepare
alwayscalculate the mass M needing the copper added
copper, M
copper=M
always× C
copper; Calculate the length L of required used up pure copper tube
pipe, L
pipe=M
copper/ (ρ
copper× S
tube section); According to the massfraction C of aluminium element in the aluminum-copper alloy that will prepare
aluminiumand the total mass M of the aluminum-copper alloy that will prepare
alwayscalculate the quality needing the pure elemental aluminum raw material added; 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 fine aluminium liquid, makes the liquid level of fine aluminium liquid between 100mm ~ 300mm, and carry out thermal insulation deslagging to fine aluminium liquid; Be 0.11MPa ~ 0.13MPa by one end cut-in pressure of each pure copper tube of sufficient length, temperature is the non-reactive gas of room temperature, the other end is inserted in fine aluminium liquid, each pure copper tube carries non-reactive gas along its length, to make the downward thermograde that raises gradually of formation temperature along its length from aluminium liquid liquid level of the pure copper tube part in immersion fine aluminium liquid; The length that the part of each pure copper tube in immersion fine aluminium liquid is downward along its length from aluminium liquid liquid level is L1 and L2 sum, wherein, the pure copper tube part of the relative low temperature that length is L1 can non-reactive gas described in continus convergence, and the pure copper tube part that length is the relatively-high temperature of L2 can fuse into fine aluminium liquid formation aluminum-copper alloy liquid in 2 ~ 3 minutes, and the value of L2/L1 is between 1/3 ~ 1/2, the non-reactive gas wherein exported from the other end makes fine 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 pure copper tube is increased intubating length L2 in fine aluminium liquid, if the length L of required used up pure copper tube
pipeinteger divided by L2*N gained is K, then each pure copper tube increases the number of times inserted is K, until N root pure copper tube inserts the length L reaching required used up pure copper tube
pipeif, the length L of required used up pure copper tube
pipenon-vanishing divided by L2*K*N gained remainder, then in the end by length L
pipecomplementing part divided by L2*K*N gained is shared on all or part of pure copper tube, is less than sharing part and making the part of sharing of this corresponding pure copper tube extend under L1 of L2 to make corresponding pure copper tube have; Each pure copper tube insertion stops increasing, and continues to pass into non-reactive gas 10 ~ 15 minutes; By each residue pure copper tube pull-out aluminium liquid liquid level, stop passing into of non-reactive gas, complete aluminum-copper alloy fusion process; Wherein: the total length L of each pure copper tube
alwaysbe greater than L2*K and L1 sum and guarantee hold from outside and pass into non-reactive gas.
Beneficial effect of the present invention is as follows:
Because the non-reacted air-flow exported from the other end of pure copper tube directly acts on alloying region, fine 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, the non-reactive gas simultaneously passed into can take the obnoxious flavour that fine aluminium liquid sucks out of aluminum-copper alloy outside, therefore, aluminum-copper alloy melting method of the present invention is while the quantitative proportioning realizing copper in aluminum-copper alloy, abundant Convention diffusion can also be carried out, thus obtain aluminum bronze uniform composition 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 aluminum-copper alloy melting according to the present invention when starting, and for the sake of clarity, a pure copper tube is only shown;
Fig. 2 is according to the schematic diagram in aluminum-copper alloy fusion process of the present invention, for the sake of clarity, a pure copper tube is only shown.
Embodiment
Describe in detail with reference to the accompanying drawings according to aluminum-copper alloy melting method of the present invention.
See figures.1.and.2, aluminum-copper alloy melting method according to the present invention comprises step: the N root pure copper tube that selection caliber is 6mm ~ 8mm, wall thickness is 1mm ~ 2mm, N>=1, according to the massfraction C of copper in the aluminum-copper alloy that will prepare
copperand the total mass M of the aluminum-copper alloy that will prepare
alwayscalculate the mass M needing the copper added
copper, M
copper=M
always× C
copper, calculate the length L of required used up pure copper tube
pipe, L
pipe=M
copper/ (ρ
copper× S
tube section), according to the massfraction C of aluminium element in the aluminum-copper alloy that will prepare
aluminiumand the total mass M of the aluminum-copper alloy that will prepare
alwayscalculate the quality needing the pure elemental aluminum raw material added, 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 fine aluminium liquid, makes the liquid level of fine aluminium liquid between 100mm ~ 300mm, and carry out thermal insulation deslagging to fine aluminium liquid, be 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 pure copper tube of sufficient length, pressure is less than 0.11MPa then cannot form effective liquid convection), temperature is the non-reactive gas of room temperature, the other end is inserted in fine aluminium liquid, each pure copper tube carries non-reactive gas along its length, to make the downward thermograde (with reference to Fig. 1) that raises gradually of formation temperature along its length from aluminium liquid liquid level of the pure copper tube part in immersion fine aluminium liquid, the length that the part of each pure copper tube in immersion fine aluminium liquid is downward along its length from aluminium liquid liquid level is L1 and L2 sum, wherein, the pure copper tube part of the relative low temperature that length is L1 can non-reactive gas described in continus convergence, and the pure copper tube part that length is the relatively-high temperature of L2 can fuse into fine aluminium liquid formation aluminum-copper alloy liquid in 2 ~ 3 minutes, and the value of L2/L1 is between 1/3 ~ 1/2, the non-reactive gas wherein exported from the other end makes fine aluminium liquid and aluminum-copper alloy liquid in (i.e. alloying region, region corresponding to L2, with reference to Fig. 2) formation Convention diffusion upward and outward (with reference to Fig. 2), every 2 ~ 3 minutes, each pure copper tube is increased intubating length L2 in fine aluminium liquid, if the length L of required used up pure copper tube
pipeinteger divided by L2*N gained is K, then each pure copper tube increases the number of times inserted is K, until N root pure copper tube inserts the length L reaching required used up pure copper tube
pipeif, the length L of required used up pure copper tube
pipenon-vanishing divided by L2*K*N gained remainder, then in the end by length L
pipecomplementing part divided by L2*K*N gained is shared on all or part of pure copper tube, is less than sharing part and making the part of sharing of this corresponding pure copper tube extend under L1 of L2 to make corresponding pure copper tube have, each pure copper tube insertion stops increasing, and continues to pass into non-reactive gas 10 ~ 15 minutes, by each residue pure copper tube pull-out aluminium liquid liquid level, stop passing into of non-reactive gas, complete aluminum-copper alloy fusion process, wherein: the total length L of each pure copper tube
alwaysbe greater than L2*K and L1 sum and guarantee hold from outside and pass into non-reactive gas.
Because the non-reacted air-flow exported from the other end of pure copper tube directly acts on alloying region, make fine aluminium liquid and aluminum-copper alloy liquid in (i.e. alloying region, alloying region corresponding to L2, with reference to Fig. 2) formation 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, the non-reactive gas simultaneously passed into can take the obnoxious flavour that fine aluminium liquid sucks out of aluminum-copper alloy outside, therefore, aluminum-copper alloy melting method of the present invention is while the quantitative proportioning realizing copper in aluminum-copper alloy, abundant Convention diffusion can also be carried out, thus obtain aluminum bronze uniform composition with high-level efficiency, segregation is little, the target aluminum-copper alloy that gas hole defect is few.
In aluminum-copper alloy melting method according to the present invention, the copper content of pure copper tube can be 99.99%.In aluminum-copper alloy melting method according to the present invention, nonreactive gas can be rare gas element or nitrogen.
In aluminum-copper alloy melting method according to the present invention, rare gas element can be argon gas.
In aluminum-copper alloy melting method according to the present invention, the other end of pure copper tube vertically inserts or tilts to insert in (seeing figures.1.and.2) fine aluminium liquid.
In aluminum-copper alloy melting method according to the present invention, room temperature can be 20 ~ 30 DEG C.
In aluminum-copper alloy melting method according to the present invention, N=1, and length L
pipecomplementing part divided by length L2*K*N gained is all shared on a pure copper tube.
In aluminum-copper alloy melting method according to the present invention, N>1, N root pure copper tube inserts in fine aluminium liquid successively, and length L
pipecomplementing part divided by length L2*K*N gained is shared on all or part of pure copper tube.
In aluminum-copper alloy melting method according to the present invention, N>1, N root pure copper tube inserts in fine aluminium liquid simultaneously, and length L
pipecomplementing part divided by length L2*K*N gained is shared on all or part of pure copper tube.
In aluminum-copper alloy melting method according to the present invention, each pure copper tube can indicate scale, mark each L2 of insertion and the length L of required used up pure copper tube
pipe.
Claims (10)
1. an aluminum-copper alloy melting method, is characterized in that, comprises step:
The N root pure copper tube that selection caliber is 6mm ~ 8mm, wall thickness is 1mm ~ 2mm, N >=1;
According to the massfraction C of copper in the aluminum-copper alloy that will prepare
copperand the total mass M of the aluminum-copper alloy that will prepare
alwayscalculate the mass M needing the copper added
copper, M
copper=M
always× C
copper;
Calculate the length L of required used up pure copper tube
pipe, L
pipe=M
copper/ (ρ
copper× S
tube section);
According to the massfraction C of aluminium element in the aluminum-copper alloy that will prepare
aluminiumand the total mass M of the aluminum-copper alloy that will prepare
alwayscalculate the quality needing the pure elemental aluminum raw material added;
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 fine aluminium liquid, makes the liquid level of fine aluminium liquid between 100mm ~ 300mm, and carry out thermal insulation deslagging to fine aluminium liquid;
Be 0.11MPa ~ 0.13MPa by one end cut-in pressure of each pure copper tube of sufficient length, temperature is the non-reactive gas of room temperature, the other end is inserted in fine aluminium liquid, each pure copper tube carries non-reactive gas along its length, to make the downward thermograde that raises gradually of formation temperature along its length from aluminium liquid liquid level of the pure copper tube part in immersion fine aluminium liquid;
The length that the part of each pure copper tube in immersion fine aluminium liquid is downward along its length from aluminium liquid liquid level is L1 and L2 sum, wherein, the pure copper tube part of the relative low temperature that length is L1 can non-reactive gas described in continus convergence, and the pure copper tube part that length is the relatively-high temperature of L2 can fuse into fine aluminium liquid formation aluminum-copper alloy liquid in 2 ~ 3 minutes, and the value of L2/L1 is between 1/3 ~ 1/2, the non-reactive gas wherein exported from the other end makes fine 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 pure copper tube is increased intubating length L2 in fine aluminium liquid, if the length L of required used up pure copper tube
pipeinteger divided by L2*N gained is K, then each pure copper tube increases the number of times inserted is K, until N root pure copper tube inserts the length L reaching required used up pure copper tube
pipeif, the length L of required used up pure copper tube
piperemainder divided by L2*K*N gained is non-vanishing, then in the end by length L
pipecomplementing part divided by L2*K*N gained is shared on all or part of pure copper tube, is less than sharing part and making the part of sharing of this corresponding pure copper tube extend under L1 of L2 to make corresponding pure copper tube have;
Each pure copper tube insertion stops increasing, and continues to pass into non-reactive gas 10 ~ 15 minutes;
By each residue pure copper tube pull-out fine aluminium liquid liquid level, stop passing into of non-reactive gas, complete aluminum-copper alloy fusion process;
Wherein:
The total length L of each pure copper tube
alwaysbe greater than L2*K and L1 sum and guarantee hold from outside and pass into non-reactive gas.
2. aluminum-copper alloy melting method according to claim 1, is characterized in that, the copper content of pure copper tube is 99.99%.
3. aluminum-copper alloy melting method according to claim 1, is characterized in that, nonreactive gas is rare gas element or nitrogen.
4. aluminum-copper alloy melting method according to claim 3, is characterized in that, rare gas element is argon gas.
5. aluminum-copper alloy melting method according to claim 1, is characterized in that, the other end of pure copper tube vertically inserts or tilts to insert in fine aluminium liquid.
6. aluminum-copper alloy melting method according to claim 1, is characterized in that, room temperature is 20 ~ 30 DEG C.
7. aluminum-copper alloy melting method according to claim 1, is characterized in that, N=1, and length L
pipecomplementing part divided by length L2*K*N gained is all shared on a pure copper tube.
8. aluminum-copper alloy melting method according to claim 1, is characterized in that, N>1, N root pure copper tube inserts in fine aluminium liquid successively, and length L
pipecomplementing part divided by length L2*K*N gained is shared on all or part of pure copper tube.
9. aluminum-copper alloy melting method according to claim 1, is characterized in that, N>1, N root pure copper tube inserts in fine aluminium liquid simultaneously, and length L
pipecomplementing part divided by length L2*K*N gained is shared on all or part of pure copper tube.
10. the aluminum-copper alloy melting method according to any one of claim 7-9, is characterized in that, each pure copper tube is marked with scale, marks each L2 of insertion and the length L of required this pure copper tube used up
pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510030405.4A CN104561618B (en) | 2015-01-21 | 2015-01-21 | Aluminum-copper alloy melting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510030405.4A CN104561618B (en) | 2015-01-21 | 2015-01-21 | Aluminum-copper alloy melting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104561618A true CN104561618A (en) | 2015-04-29 |
| CN104561618B CN104561618B (en) | 2016-06-01 |
Family
ID=53078686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510030405.4A Active CN104561618B (en) | 2015-01-21 | 2015-01-21 | Aluminum-copper alloy melting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104561618B (en) |
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 |
-
2015
- 2015-01-21 CN CN201510030405.4A patent/CN104561618B/en active Active
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 |
Non-Patent Citations (1)
| Title |
|---|
| 杨双平: "《冶金炉料处理工艺》", 30 April 2008 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104561618B (en) | 2016-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104353696B (en) | Manufacturing method for fine copper-silver alloy wires | |
| CN107988567B (en) | Production process and equipment of contact wire for large-length copper-based amorphous alloy high-speed railway | |
| CN105986134A (en) | Method for preparing high silicon aluminum alloy electronic packaging material | |
| CN102121079B (en) | Method for preparing zinc base alloy | |
| CN105648257A (en) | Continuous hot isostatic pressure dipping method for preparing large-size carbon and copper composite materials | |
| CN103394826A (en) | Technological method for reducing defect of extrusion rod | |
| CN104264015B (en) | A kind of manufacture method of high-strength rust-preventing aluminum alloy slab ingot | |
| CN104561618A (en) | Aluminum-copper alloy smelting method | |
| CN106435325A (en) | Multielement alloy sealing material and preparation method thereof | |
| CN104911408A (en) | Hard aluminum conductor filament and preparation method thereof | |
| CN104616880A (en) | Method for producing sintered NdFeB magnets | |
| CN101831566B (en) | Method for preparing composite membrane for improving oxidation resistance of copper lead of integrated circuit | |
| CN107838576A (en) | A kind of microwave magnetron sealing alloy solder | |
| CN107739891A (en) | A kind of preparation method of nickel molybdenum intermediate alloy | |
| CN109338130B (en) | Process for improving appearance quality of zinc alloy | |
| CN106086542A (en) | A kind of computer capillary radiating tube rare earth aluminium alloy and preparation method thereof | |
| CN102634689A (en) | Rare earth copper alloy rod for petrochemical engineering equipment and preparation method of rare earth copper alloy rod | |
| CN104928561A (en) | Spheroidizing agent and preparation method thereof | |
| CN113245530A (en) | Vacuum continuous smelting casting method for copper alloy | |
| CN105506340A (en) | Preparation method for anode of copper-phosphorus alloy | |
| CN210548817U (en) | Self-propagating welding crucible | |
| CN104400260A (en) | Production process of extrusion ingot containing copper phosphorus brazing filler metal | |
| CN210399956U (en) | Smelting device for alloy smelting | |
| CN102492879A (en) | Aluminum alloy thin-wall tube and preparation method | |
| CN106834813A (en) | A kind of high intensity element containing gadolinium aluminium alloy conductor and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |