CN105543575B - A kind of aluminium alloy plate ingot rich in silicon, copper and titanium elements and preparation method thereof - Google Patents
A kind of aluminium alloy plate ingot rich in silicon, copper and titanium elements and preparation method thereof Download PDFInfo
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- CN105543575B CN105543575B CN201510960957.5A CN201510960957A CN105543575B CN 105543575 B CN105543575 B CN 105543575B CN 201510960957 A CN201510960957 A CN 201510960957A CN 105543575 B CN105543575 B CN 105543575B
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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
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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
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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Abstract
The invention discloses a kind of aluminium alloy plate ingot rich in silicon, copper and titanium elements and preparation method thereof, it contains the following component in terms of weight/mass percentage composition：0.6% ~ 0.8% Si, 0.4% ~ 0.6% Fe, 0.4% ~ 0.6% Cu, 1.1% ~ 1.4% Mn and 0.1% ~ 0.2% Ti, surplus are Al and inevitable impurity, and the impurity is the Mg that weight/mass percentage composition is less than or equal to 0.05%.Its preparation method comprises the following steps：Aluminum bronze intermediate alloy, addition Mn agent, Si agent, Fe agent and Ti crystal grain thinnings, semi-continuous casting and annealing are added after the fusing of aluminium ingot part.The aluminium alloy plate ingot of the present invention have the advantages that intensity compared with it is strong, plasticity is good, resistance to stress and decay resistance are preferable；The preparation method of the present invention has the advantages that step is simple, easily operated.
Description
Technical field
The invention discloses a kind of aluminium alloy plate ingot rich in silicon, copper and titanium elements, the invention also discloses one kind to be rich in
The preparation method of the aluminium alloy plate ingot of silicon, copper and titanium elements.
Background technology
Heat exchanger is to realize heat transfer between material between a kind of two kinds in different temperatures or two or more fluids
Energy-saving equipment, it is heat is passed to the relatively low fluid of temperature by higher fluid, fluid temperature (F.T.) is reached the finger of flow specification
Mark, to meet the needs of process condition, while also improve one of capital equipment of energy utilization rate.Heat exchanger industry is related to
Nearly 30 multi industries such as HVAC, pressure vessel, sewerage disposing equipment, mutually form industry chain (supply chain).
Heat exchanger fin is the main part in heat exchanger component, and the quality of its quality directly decides the good of heat exchanger quality
It is bad.Plate ingot is usually as the fin material of heat exchanger, the heat exchange of high plasticity, high intensity, high resistance to stress and corrosion resistance
Device fin, the slump resistance energy for the core body that can aid in after soldering, moreover it is possible to ensure the circulation heat expansion in the heat exchanger course of work
Support under shrinkage environment, and effective operating under the stronger operating mode of working environment or heat-exchange fluid corrosivity, thus
It can be seen that the performance quality of plate ingot directly influences the quality and service life of heat exchanger, therefore, the intensity of plate ingot, plasticity and
Stress resistance can be particularly important.
However, plate ingot intensity, plasticity, resistance to stress and corrosive nature of the prior art can not reach and meanwhile preferably,
So as to influence the quality of heat exchanger, and also shorten the service life of heat exchanger.
The content of the invention
An object of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of intensity is relatively strong, plasticity, anti-
Stress and decay resistance are preferably rich in the aluminium alloy plate ingot of silicon, copper and titanium elements.
It is a further object of the present invention to provide a kind of preparation method of the aluminium alloy plate ingot rich in silicon, copper and titanium elements.
According to technical scheme provided by the invention, the aluminium alloy plate ingot rich in silicon, copper and titanium elements, it contains with matter
Measure the following component of percentage composition meter：0.6% ~ 0.8% Si, 0.4% ~ 0.6% Fe, 0.4% ~ 0.6% Cu, 1.1% ~ 1.4%
Mn and 0.1% ~ 0.2% Ti, surplus are Al and inevitable impurity, and the impurity is less than or equal to for weight/mass percentage composition
0.05% Mg.
A kind of preparation method of the aluminium alloy plate ingot rich in silicon, copper and titanium elements comprises the following steps：
A, aluminium ingot to be put into smelting furnace, temperature of smelting furnace is warming up to 740 ~ 760 DEG C, after the fusing of aluminium ingot part, forms molten bath,
When can just flooding aluminum bronze intermediate alloy with the melt in molten bath, aluminum bronze intermediate alloy is added into molten bath and from pressing close to stove
Bottom lowest part steadily stirs upwards, is skimmed after the material in smelting furnace all fusing；
B, skim and Mn agent is added in backward smelting furnace；After being completely melt Deng the Mn agent in smelting furnace, to smelting furnace in simultaneously add Si
Agent and Fe agent；After being completely melt Deng the Si agent in smelting furnace and Fe agent, to smelting furnace in add Ti crystal grain thinnings；It is thin Deng the Ti in smelting furnace
After change crystal grain is completely melt, aluminium alloy mixed molten liquid is obtained；
The temperature control of aluminium alloy mixed molten liquid is poured into the casting mould of uniform forward motion after 705 ~ 710 DEG C c,
Semi-continuous casting is carried out in die cavity, the casting speed of casting mould is controlled in 65 ~ 73mm/min, the cooling water pressure of casting mould
Control is controlled at 20 ~ 35 DEG C in 0.08 ~ 0.1MPa, the cooling water temperature of casting mould, obtains aluminium alloy plate ingot semi-finished product；
D, aluminium alloy plate ingot semi-finished product are put into homogenizing annealing stove and annealed, annealing temperature is controlled 605 ~ 620
DEG C, annealing soaking time control obtained aluminium alloy plate ingot at 8 ~ 10 hours.
The aluminium alloy plate ingot of the present invention have intensity compared with it is strong, plasticity is good, resistance to stress and decay resistance are preferable etc. excellent
Point；The preparation method of the present invention has the advantages that step is simple, easily operated.
Embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment 1
A kind of preparation method of the aluminium alloy plate ingot rich in silicon, copper and titanium elements comprises the following steps：
A, aluminium ingot to be put into smelting furnace, temperature of smelting furnace is warming up to 740 ~ 760 DEG C, after the fusing of aluminium ingot part, forms molten bath,
When can just flooding aluminum bronze intermediate alloy with the melt in molten bath, aluminum bronze intermediate alloy is added into molten bath and from pressing close to stove
Bottom lowest part steadily stirs upwards, is skimmed after the material in smelting furnace all fusing；
B, skim and Mn agent is added in backward smelting furnace；After being completely melt Deng the Mn agent in smelting furnace, to smelting furnace in simultaneously add Si
Agent and Fe agent；After being completely melt Deng the Si agent in smelting furnace and Fe agent, to smelting furnace in add Ti crystal grain thinnings；It is thin Deng the Ti in smelting furnace
After change crystal grain is completely melt, aluminium alloy mixed molten liquid is obtained；
The temperature control of aluminium alloy mixed molten liquid is poured into the casting mould of uniform forward motion after 705 ~ 710 DEG C c,
Semi-continuous casting is carried out in die cavity, the casting speed of casting mould is controlled in 65 ~ 73mm/min, the cooling water pressure of casting mould
Control is controlled at 20 ~ 35 DEG C in 0.08 ~ 0.1MPa, the cooling water temperature of casting mould, obtains aluminium alloy plate ingot semi-finished product；
D, aluminium alloy plate ingot semi-finished product are put into homogenizing annealing stove and annealed, annealing temperature is controlled 605 ~ 620
DEG C, annealing soaking time control obtained aluminium alloy plate ingot at 8 ~ 10 hours.
Aluminium alloy plate ingot obtained by embodiment 1, it contains the following component in terms of weight/mass percentage composition：0.6% Si,
0.4% Fe, 0.4% Cu, 1.1% Mn and 0.1% Ti, surplus are Al and inevitable impurity, and the impurity is quality hundred
The Mg for dividing content to be less than or equal to 0.05%.
By the aluminium alloy plate ingot that embodiment 1 obtains be rolled into thickness be 0.2mm states be " H14 " aluminium strip after, test it
Tensile strength is 175MPa, elongation percentage 6%.
Embodiment 2
A kind of preparation method of the aluminium alloy plate ingot rich in silicon, copper and titanium elements comprises the following steps：
A, aluminium ingot to be put into smelting furnace, temperature of smelting furnace is warming up to 740 ~ 760 DEG C, after the fusing of aluminium ingot part, forms molten bath,
When can just flooding aluminum bronze intermediate alloy with the melt in molten bath, aluminum bronze intermediate alloy is added into molten bath and from pressing close to stove
Bottom lowest part steadily stirs upwards, is skimmed after the material in smelting furnace all fusing；
B, skim and Mn agent is added in backward smelting furnace；After being completely melt Deng the Mn agent in smelting furnace, to smelting furnace in simultaneously add Si
Agent and Fe agent；After being completely melt Deng the Si agent in smelting furnace and Fe agent, to smelting furnace in add Ti crystal grain thinnings；It is thin Deng the Ti in smelting furnace
After change crystal grain is completely melt, aluminium alloy mixed molten liquid is obtained；
The temperature control of aluminium alloy mixed molten liquid is poured into the casting mould of uniform forward motion after 705 ~ 710 DEG C c,
Semi-continuous casting is carried out in die cavity, the casting speed of casting mould is controlled in 65 ~ 73mm/min, the cooling water pressure of casting mould
Control is controlled at 20 ~ 35 DEG C in 0.08 ~ 0.1MPa, the cooling water temperature of casting mould, obtains aluminium alloy plate ingot semi-finished product；
D, aluminium alloy plate ingot semi-finished product are put into homogenizing annealing stove and annealed, annealing temperature is controlled 605 ~ 620
DEG C, annealing soaking time control obtained aluminium alloy plate ingot at 8 ~ 10 hours.
Aluminium alloy plate ingot obtained by embodiment 2, it contains the following component in terms of weight/mass percentage composition：0.7% Si,
0.5% Fe, 0.5 Cu, 1.2% Mn and 0.15% Ti, surplus are Al and inevitable impurity, and the impurity is quality hundred
The Mg for dividing content to be less than or equal to 0.05%.
The thickness that is rolled into by the aluminium alloy plate ingot that embodiment 2 obtains is test after the aluminium strip that 0.2mm states are " H14 "
Its tensile strength is 171MPa, elongation percentage 8%.
Embodiment 3
A kind of preparation method of the aluminium alloy plate ingot rich in silicon, copper and titanium elements comprises the following steps：
A, aluminium ingot to be put into smelting furnace, temperature of smelting furnace is warming up to 740 ~ 760 DEG C, after the fusing of aluminium ingot part, forms molten bath,
When can just flooding aluminum bronze intermediate alloy with the melt in molten bath, aluminum bronze intermediate alloy is added into molten bath and from pressing close to stove
Bottom lowest part steadily stirs upwards, is skimmed after the material in smelting furnace all fusing；
B, skim and Mn agent is added in backward smelting furnace；After being completely melt Deng the Mn agent in smelting furnace, to smelting furnace in simultaneously add Si
Agent and Fe agent；After being completely melt Deng the Si agent in smelting furnace and Fe agent, to smelting furnace in add Ti crystal grain thinnings；It is thin Deng the Ti in smelting furnace
After change crystal grain is completely melt, aluminium alloy mixed molten liquid is obtained；
The temperature control of aluminium alloy mixed molten liquid is poured into the casting mould of uniform forward motion after 705 ~ 710 DEG C c,
Semi-continuous casting is carried out in die cavity, the casting speed of casting mould is controlled in 65 ~ 73mm/min, the cooling water pressure of casting mould
Control is controlled at 20 ~ 35 DEG C in 0.08 ~ 0.1MPa, the cooling water temperature of casting mould, obtains aluminium alloy plate ingot semi-finished product；
D, aluminium alloy plate ingot semi-finished product are put into homogenizing annealing stove and annealed, annealing temperature is controlled 605 ~ 620
DEG C, annealing soaking time control obtained aluminium alloy plate ingot at 8 ~ 10 hours.
Aluminium alloy plate ingot obtained by embodiment 3, it contains the following component in terms of weight/mass percentage composition：0.8% Si,
0.6% Fe, 0.6% Cu, 1.4% Mn and 0.2% Ti, surplus are Al and inevitable impurity, and the impurity is quality hundred
The Mg for dividing content to be less than or equal to 0.05%.
By the aluminium alloy plate ingot that embodiment 3 obtains be rolled into thickness be 0.2mm states be " H14 " aluminium strip after, test it
Tensile strength is 177MPa, elongation percentage 6%.
The aluminium alloy plate ingot is mainly used in the fin material of heat exchanger, by being heat-treated solution strengthening, is keeping high intensity
While, meet the plasticity requirements of fin, the core body slump resistance energy contributed to after soldering.Meanwhile its timeliness reinforcing property can
Make to keep intensity not reduce during core body long-term use, and Cu resistance to stress performance guarantee heat exchanger is in the course of the work
The support expanded with heat and contract with cold under environment is circulated, so as to effectively improve the service life of heat exchanger.
By adding magnesium, titanium and zirconium, and the composition ratio of each element is adjusted in good time, it is of the prior art so as to overcome
Plate ingot can not meet simultaneously intensity, plasticity and stress resistance can requirement and influence heat exchanger quality problems, and then protecting
While holding high intensity, also meet the requirement of plasticity, and stress resistance also preferably can improve heat exchanger quality, extend
The service life of heat exchanger.
It should be appreciated by those skilled in the art that those skilled in the art combine prior art and above-described embodiment can be real
The existing change case, will not be described here.Such change case has no effect on the substantive content of the present invention, will not be described here.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as giving reality with the common mode in this area
Apply；Any those skilled in the art, many possible changes and modifications are made not departing from technical solution of the present invention, or
The equivalent embodiment of equivalent variations is revised as, this has no effect on the substantive content of the present invention.Therefore, it is every without departing from skill of the present invention
The content of art scheme, the technical spirit according to the present invention to any simple modification made for any of the above embodiments, equivalent variations and are repaiied
Decorations, still fall within technical solution of the present invention protection in the range of.
Claims (1)
1. a kind of preparation method of the aluminium alloy plate ingot rich in silicon, copper and titanium elements, the aluminium rich in silicon, copper and titanium elements closes
Golden plate ingot contains the following component in terms of weight/mass percentage composition：0.6% ~ 0.8% Si, 0.4% ~ 0.6% Fe, 0.4% ~ 0.6%
Cu, 1.1% ~ 1.4% Mn and 0.1% ~ 0.2% Ti, surplus are Al and inevitable impurity, and the impurity is weight/mass percentage composition
Mg less than or equal to 0.05%；It is characterized in that this method comprises the following steps：
A, aluminium ingot is put into smelting furnace, temperature of smelting furnace is warming up to 740 ~ 760 DEG C, after the fusing of aluminium ingot part, molten bath is formed, with molten
When melt in pond can just flood aluminum bronze intermediate alloy, aluminum bronze intermediate alloy is added into molten bath and from pressing close to furnace bottom most
Lower steadily stirs upwards, is skimmed after the material in smelting furnace all fusing；
B, skim and Mn agent is added in backward smelting furnace；After being completely melt Deng the Mn agent in smelting furnace, to smelting furnace in simultaneously add Si agent and
Fe agent；After being completely melt Deng the Si agent in smelting furnace and Fe agent, to smelting furnace in add Ti crystal grain thinnings；Crystalline substance is refined Deng the Ti in smelting furnace
After grain is completely melt, aluminium alloy mixed molten liquid is obtained；
The temperature control of aluminium alloy mixed molten liquid is poured into the die cavity of the casting mould of uniform forward motion after 705 ~ 710 DEG C c,
Interior carry out semi-continuous casting, the casting speed control of casting mould control in 65 ~ 73mm/min, the cooling water pressure of casting mould
In 0.08 ~ 0.1MPa, the cooling water temperature of casting mould is controlled at 20 ~ 35 DEG C, obtains aluminium alloy plate ingot semi-finished product；
D, aluminium alloy plate ingot semi-finished product are put into homogenizing annealing stove and annealed, annealing temperature is controlled at 605 ~ 620 DEG C, is moved back
Fiery soaking time control obtained aluminium alloy plate ingot at 8 ~ 10 hours.
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