CN113549791A - High heat conduction aluminum alloy manufacturing installation for die-casting - Google Patents

High heat conduction aluminum alloy manufacturing installation for die-casting Download PDF

Info

Publication number
CN113549791A
CN113549791A CN202110744273.7A CN202110744273A CN113549791A CN 113549791 A CN113549791 A CN 113549791A CN 202110744273 A CN202110744273 A CN 202110744273A CN 113549791 A CN113549791 A CN 113549791A
Authority
CN
China
Prior art keywords
percent
quantitative
batching
storage tank
station
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.)
Pending
Application number
CN202110744273.7A
Other languages
Chinese (zh)
Inventor
杨辛
杨潆奎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Fuzerui Metal Technology Co ltd
Original Assignee
Shandong Fuzerui Metal Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong Fuzerui Metal Technology Co ltd filed Critical Shandong Fuzerui Metal Technology Co ltd
Priority to CN202010856218.2A priority Critical patent/CN111926221A/en
Priority to CN202110744273.7A priority patent/CN113549791A/en
Publication of CN113549791A publication Critical patent/CN113549791A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/02Making alloys by melting
    • C22C1/026Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/02Making alloys by melting
    • C22C1/03Making alloys by melting using master alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/02Alloys based on aluminium with silicon as the next major constituent

Abstract

The invention relates to a manufacturing device and a preparation method of high-thermal-conductivity aluminum alloy for die casting, wherein the high-thermal-conductivity aluminum alloy comprises the following components in parts by weight: 7.0-11.5% of silicon; 0.15-0.65% of magnesium; 0.10 to 0.65 percent of iron; manganese is less than or equal to 0.15 percent; copper is less than or equal to 1.5 percent; 0.01-0.05% of boron; 0.01-0.05% of titanium; 0.05-0.25% of chromium; zinc is less than or equal to 0.03 percent; the rest is aluminum; the total interval of the magnesium content, the titanium content and the ten-fold boron content is between 0.3 and 0.8 percent, namely between 0.3 and 0.8 percent of Mg percent and between 5 multiplied by Ti percent and 10 multiplied by B percent and between 0.8 percent; the sampling heat conductivity coefficient of the high-heat-conductivity aluminum alloy is more than 180W/m.K, and the product of strength and elongation is more than 1000 MPa; the invention has reasonable design, compact structure and convenient use.

Description

High heat conduction aluminum alloy manufacturing installation for die-casting
Technical Field
The invention relates to a manufacturing device of high-heat-conductivity aluminum alloy for automobile die casting.
Background
The high-pressure casting molding technology is one of the most common molding methods for aluminum and aluminum alloy castings, and is widely applied to the industries of automobiles, communication, energy, consumer electronics and the like. Generally, pressure cast aluminum alloy parts have the advantages of complex structure, thin wall, light weight, easy recycling, and the like. Nowadays, with the rapid development of new energy and communication technology, the requirements for large-scale structure and function integration impose severe requirements on advanced materials. The prior aluminum alloy material design is two-dimensional optimization of balance between high strength and high plasticity, namely maximization of the product of the strength and the plasticity. Because the requirements of some die-cast aluminum alloy parts, particularly heat dissipation parts of communication and new energy automobiles are increased rapidly, the requirement on the aspect of heat conduction is increased, a three-dimensional optimization system of strength, plasticity and heat conductivity needs to be provided, the requirements on the process aspects of ultrahigh fluidity, solidification property and the like of large-scale complex structural parts are also considered, and the die-cast aluminum alloy material needs to be redesigned. Therefore, the mechanical properties and heat conductivity of the cast product need to be greatly improved by combining the material design and the smelting preparation process.
At present, the common die-casting aluminum alloy takes AlSi9Cu3 and ADC12 as examples, the thermal conductivity is about 100-120W/m.K, the as-cast yield strength is between 130 and 150MPa, and the elongation is within 3% (the product of strength and elongation is less than 500 MPa). Although the traditional die-casting material has good formability, the phenomenon that structural parts such as electronics, electricity, communication, electromechanics and the like generate excessive heat due to components and the like in the service process cannot be effectively met. The requirement of the integration of the structure and the function cannot be well solved by common die-casting aluminum alloy.
Disclosure of Invention
The invention aims to solve the technical problem of providing a manufacturing device of high-heat-conductivity aluminum alloy for die casting and a preparation method thereof. In order to solve the defects, starting from the composition design of the alloy, the volume fractions of a strengthening phase and solid solution atoms and precipitated phases for obstructing heat dissipation are optimized by adopting a thermodynamic calculation method, and meanwhile, the flowing and solidifying characteristics of the material are optimized according to an experimental result. The high-thermal-conductivity aluminum alloy for die casting and the preparation method thereof are provided, wherein the aluminum alloy has good alloy fluidity, excellent mechanical properties, high thermal conductivity and good corrosion resistance. A high-thermal-conductivity aluminum alloy manufacturing device for mother case CN202010856218.2 die casting and a preparation method thereof; application No. CN 202010856218.2; application date 20200824.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a preparation method of a high-thermal-conductivity aluminum alloy for die casting comprises the following components in parts by weight: 7.0-11.5% of silicon; 0.15-0.65% of magnesium; 0.10 to 0.65 percent of iron; manganese is less than or equal to 0.15 percent; copper is less than or equal to 1.5 percent; 0.01-0.05% of boron; 0.01-0.05% of titanium; 0.05-0.25% of chromium; zinc is less than or equal to 0.03 percent; the rest is aluminum; the total interval of the magnesium content, the titanium content and the ten-fold boron content is between 0.3 and 0.8 percent, namely between 0.3 and 0.8 percent of Mg percent and between 5 multiplied by Ti percent and 10 multiplied by B percent and between 0.8 percent; the sampling heat conductivity coefficient of the high-heat-conductivity aluminum alloy is more than 180W/m.K, and the product of strength and elongation is more than 1000 MPa;
the method comprises the following steps:
s1, blending according to the components; the contents of all ingredients are as follows: 7.0-11.5% of silicon; 0.15-0.65% of magnesium; 0.10 to 0.65 percent of iron; manganese is less than or equal to 0.15 percent; copper is less than or equal to 1.5 percent; 0.01-0.05% of boron; 0.01-0.05% of titanium; 0.05-0.25% of chromium; zinc is less than or equal to 0.03 percent; the rest is aluminum; the total interval of the magnesium content, the titanium content and the ten-fold boron content is between 0.3 and 0.8 percent, namely between 0.3 and 0.8 percent of Mg percent and between 5 multiplied by Ti percent and 10 multiplied by B percent and between 0.8 percent;
s2, adding the prepared aluminum alloy ingot with the purity into a melting furnace, and keeping the temperature in the range of T1 and T1 at 760-780 ℃;
s3, adding pure silicon, smelting and keeping the temperature in the range of 720-740 ℃ of T2 and T2;
s4, adding an aluminum-manganese intermediate alloy, an aluminum-chromium intermediate alloy and an aluminum-titanium intermediate alloy, smelting, and then cooling, wherein the temperature is kept in the range of T3 and T3 of 680-700 ℃ for more than 30 minutes (T4-T3);
s5, adding magnesium, smelting, and heating to the temperature of T2 and the temperature of 720-740 ℃ in the range of T2;
s6, adding an aluminum boron intermediate alloy, smelting, and then heating, wherein the temperature is kept in the range of T1 and T1 of 760-780 ℃;
s7, firstly, stirring the aluminum alloy liquid for 5-15 minutes to make the components uniform; then, deslagging and standing for 30-60 minutes (t6-t5), sampling and assaying;
s8, adjusting the content of each element component according to the test result until reaching the required range;
and S9, refining and degassing, wherein the refining agent is blown into the bottom of the aluminum alloy liquid through nitrogen to carry out refining and degassing until the refining is finished.
As a further improvement of the above technical solution:
in steps S1 and S3, the alloying element silicon is high purity industrial silicon, the purity is higher than 99.5%, and the high purity aluminum alloy ingot is a00 or a pure aluminum ingot with a purity of 99.8%;
the smelting furnace is a resistance furnace induction furnace or a reverberatory furnace.
By means of a manufacturing device; the manufacturing apparatus includes a furnace section and/or a purge section.
A preparation method of high-thermal-conductivity aluminum alloy for die casting comprises the following steps;
firstly, heating ingredients in various feeding materials to a molten state in a heating melting furnace; then, the molten ingredients are dripped into the quantitative storage tank from the opening through an ingredient output pipe; secondly, after the ingredients in the quantitative storage tank reach the set weight, the quantitative storage tank swings to be light in weight at the quantitative support, and the melted ingredients flow downwards into the electric heating furnace of the corresponding station from the feeding upper opening; thirdly, according to the set temperature, heating the electric heating furnace of each station to the set condition, and stirring the electric heating furnace in a stirring kettle of the quantitative storage tank; then, outputting the prepared ingredients at a lower discharging station;
step two, firstly, the driving shaft drives the eccentric shaft to rotate in the hoisting hole to drive the inclined bottom net frame to rock in the subpackaging heating furnace, so that molten accessories in the subpackaging heating furnace are stirred, and meanwhile, sundries are prevented from blocking meshes; then, the telescopic rod drives the eccentric shaft to separate from the hoisting hole, and meanwhile, the lifting lug takes out the inclined bottom net frame with sundries larger than the mesh opening; next, the batch heating furnace was heated by standing.
A manufacturing device of high-heat-conductivity aluminum alloy for die casting comprises a melting furnace part and/or an impurity removing part.
As a further improvement of the above technical solution:
a suspension bracket is hinged on the end articulated shaft, guide elongated slots are arranged on two sides of the lower end of the suspension bracket, suspension shafts are arranged in the guide elongated slots, an electric heating furnace is arranged between the suspension shafts, and a poking arm is arranged on one side of the electric heating furnace;
a first batching station, a second batching station, a third batching station, an Nth batching station and a lower discharging station are distributed on the rotary center frame;
the first batching station, the second batching station, the third batching station and the Nth batching station are used for loading parts of corresponding batching; the lower discharging station is positioned below the rotating center frame;
the feeding part comprises a preheating furnace for heating the ingredients to a molten state; a batching output pipe with a heating wire is arranged at an output port at the lower end of the preheating smelting furnace, a quantitative support is arranged at the lower end of the batching output pipe, the middle front part of a quantitative storage tank is hinged on the quantitative support through a hinged shaft, an opening is arranged at the upper part of a feeding upper opening of the quantitative storage tank, and the opening corresponds to the lower outlet of the batching output pipe and is provided with a stop valve;
a counterweight is arranged on the quantitative storage tank, and the counterweight with the corresponding weight is configured according to the weight of the added ingredients;
when the quantitative storage tank is unloaded, the head of the quantitative storage tank is light and heavy; when the ingredient output pipe is filled with the molten liquid ingredient in the quantitative storage tank, when the added weight of the ingredient reaches the set weight, the quantitative storage tank swings on the quantitative support to be light, and the molten ingredient flows down into the electric heating furnace from the feeding upper opening;
a quantitative heating coil is arranged on the quantitative storage tank, a quantitative electric slip ring connected with the quantitative heating coil is sleeved on a hinged shaft of the quantitative support, and a terminal contacted with the quantitative electric slip ring is arranged on the quantitative support;
a guide inclined plate is arranged on the inlet side of the lower discharging station and is used for contacting with a shifting arm, and the shifting arm slides on the guide inclined plate in the descending process of the heating smelting furnace, so that the quantitative storage tank is tilted downwards for discharging;
a heating smelting furnace is arranged at the lower discharging station, and is provided with a lower discharging hole;
the impurity removing part comprises a split charging heating furnace positioned below the lower discharging station, and an inclined bottom screen frame with lifting lugs is arranged in the split charging heating furnace; an eccentric shaft driven by a driving shaft of a vibration motor through a telescopic rod is movably arranged on the lifting hole;
the eccentric shaft rotates in the hoisting hole to drive the inclined bottom net frame to rock in the split charging heating furnace.
Compared with the prior art, the invention has the advantages that: the invention has the advantages of high heat conductivity coefficient more than 160W-/m.K, good die-casting performance and corrosion resistance, good machining performance, low raw material cost and the like, can be widely applied to the electro-mechanical and electrical communication industry, and can effectively solve the problem that the phenomenon that the work is influenced by the heating of components and the like during the work in the electro-mechanical and electrical communication industry has good effect on reducing the production cost.
According to the invention, through adjusting the alloy components, the adding sequence of the intermediate alloy in the smelting process and the adjustment of the temperature and the holding time, the die-casting aluminum alloy is ensured to have high thermal conductivity (more than 180W/m.K) under the as-cast condition, the product of strength and elongation exceeds 1000MPa, the die-casting performance and the corrosion resistance are good, and the problem of the structural-function integrated die-casting part is effectively solved.
The invention has the advantages of reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, capital saving, compact structure and convenient use.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a graph of the temperature control of the present invention;
fig. 3 is a schematic view of a heating use structure of the present invention.
FIG. 4 is a schematic view of the fused structure of the present invention.
Fig. 5 is a schematic illustration of the resting structure of the invention.
Fig. 6 is a schematic diagram of the frame structure of the present invention.
Wherein: 1. Rotating the central frame; 2. a lengthening arm; 3. an end hinge shaft; 4. a suspension bracket; 5. a guide long groove; 6. a suspension shaft; 7. an electric heating furnace; 8. a poking arm; 9. preheating a melting furnace; 10. a burdening output pipe; 11. a quantitative support; 12. a quantitative storage tank; 13. the feeding upper opening; 14. a counterweight; 15. a guide sloping plate; 16. a quantitative heating coil; 17. a quantitative electric slip ring; 18. a first batching station; 19. a second batching station; 20. a third batching station; 21. an Nth batching station; 22. a lower discharge station; 23. heating the furnace; 24. a lower discharge port; 25. split charging a heating furnace; 26. a lug support; 27. hoisting holes; 28. an eccentric shaft; 29. a drive shaft; 30. inclining the bottom net frame; 31. and lifting the lifting lug.
Detailed Description
As shown in fig. 1 to 6, in the preparation method of the high thermal conductivity aluminum alloy for die casting according to the embodiment, the contents of the ingredients of the high thermal conductivity aluminum alloy are as follows: 7.0-11.5% of silicon; 0.15-0.65% of magnesium; 0.10 to 0.65 percent of iron; manganese is less than or equal to 0.15 percent; copper is less than or equal to 1.5 percent; 0.01-0.05% of boron; 0.01-0.05% of titanium; 0.05-0.25% of chromium; zinc is less than or equal to 0.03 percent; the rest is aluminum; the total interval of the magnesium content, the titanium content and the ten-fold boron content is between 0.3 and 0.8 percent, namely between 0.3 and 0.8 percent of Mg percent and between 5 multiplied by Ti percent and 10 multiplied by B percent and between 0.8 percent; the sampling heat conductivity coefficient of the high-heat-conductivity aluminum alloy is more than 180W/m.K, and the product of strength and elongation is more than 1000 MPa;
the method comprises the following steps:
s1, blending according to the components; the contents of all ingredients are as follows: 7.0-11.5% of silicon; 0.15-0.65% of magnesium; 0.10 to 0.65 percent of iron; manganese is less than or equal to 0.15 percent; copper is less than or equal to 1.5 percent; 0.01-0.05% of boron; 0.01-0.05% of titanium; 0.05-0.25% of chromium; zinc is less than or equal to 0.03 percent; the rest is aluminum; the total interval of the magnesium content, the titanium content and the ten-fold boron content is between 0.3 and 0.8 percent, namely between 0.3 and 0.8 percent of Mg percent and between 5 multiplied by Ti percent and 10 multiplied by B percent and between 0.8 percent;
s2, adding the prepared aluminum alloy ingot with the purity into a melting furnace, and keeping the temperature in the range of T1 and T1 at 760-780 ℃;
s3, adding pure silicon, smelting and keeping the temperature in the range of 720-740 ℃ of T2 and T2;
s4, adding an aluminum-manganese intermediate alloy, an aluminum-chromium intermediate alloy and an aluminum-titanium intermediate alloy, smelting, and then cooling, wherein the temperature is kept in the range of T3 and T3 of 680-700 ℃ for more than 30 minutes (T4-T3);
s5, adding magnesium, smelting, and heating to the temperature of T2 and the temperature of 720-740 ℃ in the range of T2;
s6, adding an aluminum boron intermediate alloy, smelting, and then heating, wherein the temperature is kept in the range of T1 and T1 of 760-780 ℃;
s7, firstly, stirring the aluminum alloy liquid for 5-15 minutes to make the components uniform; then, deslagging and standing for 30-60 minutes (t6-t5), sampling and assaying;
s8, adjusting the content of each element component according to the test result until reaching the required range;
and S9, refining and degassing, wherein the refining agent is blown into the bottom of the aluminum alloy liquid through nitrogen to carry out refining and degassing until the refining is finished.
In steps S1 and S3, the alloying element silicon is high purity industrial silicon, the purity is higher than 99.5%, and the high purity aluminum alloy ingot is a00 or a pure aluminum ingot with a purity of 99.8%;
the smelting furnace is a resistance furnace induction furnace or a reverberatory furnace.
By means of a manufacturing device; the manufacturing apparatus includes a furnace section and/or a purge section.
The preparation method of the high-thermal-conductivity aluminum alloy for die casting of the embodiment comprises the following steps;
for S1-S6, step one, first, the batch materials are heated to a molten state in a heating furnace 9 in each charge; then, the molten ingredients are dripped into a quantitative storage tank 12 from the opening through an ingredient output pipe 10; secondly, after the ingredients in the quantitative storage tank 12 reach the set weight, the quantitative storage tank 12 swings to be light in weight at the quantitative support 11, and the melted ingredients flow downwards into the electric heating furnace 7 at the corresponding station from the feeding upper opening 13; thirdly, according to the set temperature, the electric heating furnaces 7 of all the stations are heated to set conditions, and stirred in a stirring kettle of the quantitative storage tank 12; subsequently, the configured ingredients are output at the lower discharging station 22;
in step two of S7, firstly, the driving shaft 29 drives the eccentric shaft 28 to rotate in the hoisting hole 27, and drives the inclined bottom screen frame 30 to rock in the split charging heating furnace 25, so as to stir the molten accessories in the split charging heating furnace 25 and prevent the mesh holes from being blocked by impurities; then, the telescopic rod drives the eccentric shaft 28 to separate from the hoisting hole 27, and meanwhile, the lifting lug 31 takes out the inclined bottom net frame 30 with sundries larger than the net holes; next, the charging furnace 25 is heated by standing.
The device for manufacturing the high-heat-conductivity aluminum alloy for die casting comprises a melting furnace part and/or an impurity removing part.
A suspension bracket 4 is hinged on the end hinge shaft 3, guide long grooves 5 are arranged on two sides of the lower end of the suspension bracket 4, suspension shafts 6 are arranged in the guide long grooves 5, an electric heating furnace 7 is arranged between the suspension shafts 6, and a shifting arm 8 is arranged on one side of the electric heating furnace 7;
a first batching station 18, a second batching station 19, a third batching station 20, an Nth batching station 21 and a lower discharging station 22 are distributed on the rotary central frame 1;
the first batching station 18, the second batching station 19, the third batching station 20 and the Nth batching station 21 are used for the loading part of the corresponding batching; the lower discharging station 22 is positioned below the rotary central frame 1;
the charging section comprises a preheating furnace 9 for heating the batch to a molten state; a batching output pipe 10 with a heating wire is arranged at an output port at the lower end of the preheating furnace 9, a quantitative support 11 is arranged at the lower end of the batching output pipe 10, the quantitative support 11 is hinged with the middle front part of a quantitative storage tank 12 through a hinged shaft, and the upper part of a feeding upper opening 13 of the quantitative storage tank 12 is provided with a notch which corresponds to the lower outlet of the batching output pipe 10 and is provided with a stop valve;
a counterweight 14 is arranged on the quantitative storage tank 12, and the counterweight 14 with corresponding weight is configured according to the weight of the added ingredients;
when the quantitative storage tank 12 is empty, the quantitative storage tank 12 is light in head and heavy in feet; when the ingredient output pipe 10 is filled with the molten liquid ingredient in the quantitative storage tank 12, when the added weight of the ingredient reaches the set weight, the quantitative storage tank 12 swings on the quantitative support 11 to be light, and the molten ingredient flows into the electric heating furnace 7 from the feeding upper opening 13;
a quantitative heating coil 16 is arranged on the quantitative storage tank 12, a quantitative electric slip ring 17 connected with the quantitative heating coil 16 is sleeved on a hinged shaft of the quantitative bracket 11, and a terminal contacted with the quantitative electric slip ring 17 is arranged on the quantitative bracket 11;
a guide inclined plate 15 is arranged on the inlet side of the lower discharging station 22, the guide inclined plate 15 is used for being in contact with the shifting arm 8, and the shifting arm 8 slides on the guide inclined plate 15 in the descending process of the heating smelting furnace 23, so that the quantitative storage tank 12 is tilted downwards for discharging;
a heating furnace 23 is arranged at the lower discharging station 22, and the heating furnace 23 is provided with a lower discharging hole 24;
the impurity removing part comprises a sub-packaging heating furnace 25 positioned below the lower discharging station 22, and an inclined bottom mesh frame 30 with a lifting lug 31 is arranged in the sub-packaging heating furnace 25; a lug seat 26 is arranged above the inclined bottom screen frame 30, a hoisting hole 27 is arranged on the lug seat 26, and an eccentric shaft 28 driven by a driving shaft 29 of a vibration motor through a telescopic rod is movably arranged on the hoisting hole 27;
the eccentric shaft 28 rotates in the lifting hole 27 to drive the inclined bottom screen frame 30 to swing in the split charging heating furnace 25.
Example 1
The following components were prepared: silicon: 7.5 percent; 0.3 percent of magnesium and 5 percent of magnesium; iron: 0.3% and 5%; manganese: 0.3% and 5%; copper: 0.05 percent; boron: 0.013%; titanium: 0.02 percent; chromium: 0.25 percent; zinc: 0.02 percent; the rest is aluminum; mg% +5Ti% +10 XB% =0.58% < 0.8%
As shown in fig. 1, the above material is prepared by the following steps:
(1) preparing materials according to the components;
(2) adding the prepared aluminum alloy ingot with the purity into a melting furnace, and keeping the temperature at T1(760 ℃);
(3) adding pure silicon, smelting and keeping the temperature at T2(740 ℃);
(4) adding an aluminum-manganese intermediate alloy, an aluminum-chromium intermediate alloy and an aluminum-titanium intermediate alloy, smelting, cooling, keeping the temperature at T3(700 ℃) for 60 minutes (T4-T3);
(5) adding magnesium, smelting, and heating to T2(720 deg.C);
(6) adding an aluminum-boron intermediate alloy, smelting, and then heating, and keeping the temperature at T1(77 ℃);
(7) stirring the aluminum alloy liquid for 5-15 minutes to make the components uniform, deslagging and standing for 45 minutes (t6-t5), sampling and testing;
(8) adjusting the content of each element component according to the test result until reaching the required range;
(9) refining degassing, blowing a refining agent into the bottom of the aluminum alloy liquid through nitrogen to carry out refining degassing until the refining is finished.
The thermal conductivity of the high-thermal-conductivity high-toughness aluminum alloy obtained in the embodiment 1 is 182W/m.K, the yield strength is 145MPa, the elongation is 8.5%, and the product of strength and elongation is 1232.5MPa% and is more than 1000 MPa%;
example 2
The following components were prepared: silicon: 9.5 percent; 0.28 percent of magnesium; iron: 0.45 percent; manganese: 0.45 percent; copper: 0.25 percent; boron: 0.018%; titanium: 0.03 percent; chromium: 0.25 percent; zinc: 0.02 percent; the rest is aluminum; mg% +5Ti% +10 × B% =0.61% < 0.8%;
as shown in fig. 1, the above material is prepared by the following steps:
(1) preparing materials according to the components;
(2) adding the prepared aluminum alloy ingot with the purity into a melting furnace, and keeping the temperature at T1(770 ℃);
(3) adding pure silicon, smelting and keeping the temperature at T2(730 ℃);
(4) adding an aluminum-manganese intermediate alloy, an aluminum-chromium intermediate alloy and an aluminum-titanium intermediate alloy, smelting, cooling, keeping the temperature of T3(690 ℃) for 45 minutes (T4-T3);
(5) adding magnesium, smelting, and heating to T2(720 deg.C);
(6) adding an aluminum-boron intermediate alloy, smelting, and then heating, and keeping the temperature at T1(780 ℃);
(7) stirring the aluminum alloy liquid for 5-15 minutes to make the components uniform, deslagging and standing for 60 minutes (t6-t5), sampling and testing;
(8) adjusting the content of each element component according to the test result until reaching the required range;
(9) refining degassing, blowing a refining agent into the bottom of the aluminum alloy liquid through nitrogen to carry out refining degassing until the refining is finished.
The thermal conductivity of the obtained high-thermal-conductivity high-strength and high-toughness aluminum alloy is 187W/m.K, the yield strength is 132MPa, the elongation is 9.5%, and the product of strength and elongation is 1254MPa% and is more than 1000 MPa;
example 3 the following components were prepared: silicon: 8.5 percent; 0.48 percent of magnesium; iron: 0.25 percent; manganese: 0.55 percent; copper: 0.25 percent; boron: 0.025 percent; titanium: 0.01 percent; chromium: 0.20 percent; zinc: 0.03 percent; the rest is aluminum; mg% +5Ti% +10 XB% =0.78% < 0.8%
As shown in fig. 1, the above material is prepared by the following steps:
(1) preparing materials according to the components;
(2) adding the prepared aluminum alloy ingot with the purity into a melting furnace, and keeping the temperature at T1(760 ℃);
(3) adding pure silicon, smelting and keeping the temperature at T2(720 ℃);
(4) adding an aluminum-manganese intermediate alloy, an aluminum-chromium intermediate alloy and an aluminum-titanium intermediate alloy, smelting, cooling, keeping the temperature of T3(690 ℃) for 45 minutes (T4-T3);
(5) adding magnesium, smelting, and heating to T2(720 deg.C);
(6) adding an aluminum-boron intermediate alloy, smelting, heating, and keeping at T1(770 ℃);
(7) stirring the aluminum alloy liquid for 5-15 minutes to make the components uniform, deslagging and standing for 60 minutes (t6-t5), sampling and testing;
(8) adjusting the content of each element component according to the test result until reaching the required range;
(9) refining degassing, blowing a refining agent into the bottom of the aluminum alloy liquid through nitrogen to carry out refining degassing until the refining is finished.
The thermal conductivity of the high-thermal-conductivity high-strength and high-toughness aluminum alloy obtained in the embodiment 3 is 185W/m.K, the yield strength is 165MPa, the elongation is 6.4%, and the product of strength and elongation is 1256MPa% and is more than 1000 MPa.
Example 4, the following components were prepared: silicon: 7 percent; 0.15 percent of magnesium; iron: 0.1 percent; manganese: 0.01 percent; copper: 0.01 percent; boron: 0.05 percent; titanium: 0.01 percent; chromium: 0.05 percent; zinc: 0.01 percent; the rest is aluminum;
T1(760℃);T2(720℃); T3(680℃), Mg%+5Ti%+10×B%=0.5%<0.8%;
the thermal conductivity of the obtained high-thermal-conductivity high-strength and high-toughness aluminum alloy is 192W/m.K, the yield strength is 148MPa, the elongation is 8.7%, and the product of strength and elongation is 1210MPa% and is more than 1000 MPa;
example 5, the following components were prepared: silicon: 11.5 percent; 0.45 percent of magnesium; iron: 0.65 percent; manganese: 0.15 percent; copper: 1.5 percent; boron: 0.01 percent; titanium: 0.01 percent; chromium: 0.25 percent; zinc: 0.03 percent; the rest is aluminum;
Mg%+5Ti%+10×B%=0.6%<0.8% ;
T1(760℃);T2(720℃); T3(680℃),
the thermal conductivity of the obtained high-thermal-conductivity high-strength and high-toughness aluminum alloy is 188W/m.K, the yield strength is 135MPa, the elongation is 8.1 percent, and the product of strength and elongation is 1278MPa% and is more than 1000 MPa;
example 6, the following components were prepared: silicon: 11.5 percent; 0.15 percent of magnesium; iron: 0.65 percent; manganese: 0.14 percent; copper: 1.4 percent; boron: 0.01 percent; titanium: 0.05 percent; chromium: 0.25 percent; zinc: 0.03 percent; the rest is aluminum;
Mg%+5Ti%+10×B%=0.7%<0.8%;
T1(780℃);T2(740℃); T3(700℃)。
the thermal conductivity of the obtained high-thermal-conductivity high-strength and high-toughness aluminum alloy is 190W/m.K, the yield strength is 151MPa, the elongation is 8.9%, and the product of strength and elongation is 1278MPa% and is more than 1000 MPa.
The invention realizes the connection of all working procedures by rotating the center frame 1, expands the space by lengthening the arm 2, realizes the compatibility of all working stations, has the end hinge shaft 3 with a short shaft structure, avoids the middle, is not polluted by melting ingredients, realizes the suspension of the suspension bracket 4, realizes the compatibility of the guide long groove 5, and reduces the components such as bearings and the like. Flexible rotation is also ensured, and an opening is preferably arranged on the long groove. Thereby facilitating disassembly and assembly, the suspension shaft 6 and the electric heating furnace 7 realize split charging heating, the whole is divided into a plurality of single parts, thereby satisfying heating in different areas, reducing energy consumption, the shifting arm 8 can be provided with a roller to reduce friction force, the preheating furnace 9 realizes independent heating of each ingredient into molten state, thereby avoiding time for solid adding and waiting to be changed into molten state, the ingredient output pipe 10 realizes accurate output, the quantitative support 11 is used as support, the quantitative storage tank 12 realizes weighing with the counterweight 14 by using gravity, when the molten state ingredient in the tank is more than set weight, the feeding upper opening 13 of the tank body swings down for feeding, the guiding inclined plate 15 and the shifting arm 8 ensure that the electric heating furnace 7 gradually tilts, thereby enabling molten liquid to flow out, the quantitative heating coil 16 realizes continuous heating, the quantitative electric slip ring 17 realizes contact energization with a terminal in swinging, the device comprises a first batching station 18, a second batching station 19, a third batching station 20, an Nth batching station 21 can be increased or decreased according to batching, an output is realized at a lower discharging station 22, a heating furnace 23 realizes continuous heating, a lower discharging port 24 realizes heating, a subpackaging heating furnace 25 realizes heat preservation heating, a support lug seat 26 realizes suspension, a lifting hole 27 is matched with an eccentric shaft 28 to realize shaking, stirring and separation of an inclined bottom net frame 30 in the subpackaging heating furnace 25, large-particle impurities are stored, a lifting lug 31 realizes lifting, an eccentric driving is realized at a driving shaft 29, and separation is realized through an expansion link. The integral heating is divided into single heating, so that the efficiency is improved and the energy is saved. The maintenance and the disassembly are convenient.
The present invention has been described in sufficient detail for clarity of disclosure and is not exhaustive of the prior art.

Claims (1)

1. The utility model provides a die-casting is with high heat conduction aluminum alloy manufacturing installation which characterized in that: comprises a smelting furnace part and/or an impurity removing part; the furnace part comprises a rotating centre frame (1); the roots of a plurality of elongated arms (2) are circumferentially distributed on the rotating center frame (1) in an array manner;
an end articulated shaft (3) is arranged at the cantilever end of the lengthened arm (2), a suspension bracket (4) is articulated on the end articulated shaft (3), guide long grooves (5) are arranged at two sides of the lower end of the suspension bracket (4), suspension shafts (6) are arranged in the guide long grooves (5), an electric heating furnace (7) is arranged between the suspension shafts (6), and a shifting arm (8) is arranged at one side of the electric heating furnace (7);
a first batching station (18), a second batching station (19), a third batching station (20), an Nth batching station (21) and a lower discharging station (22) are distributed on the rotary central frame (1);
the first batching station (18), the second batching station (19), the third batching station (20) and the Nth batching station (21) are used for a feeding part of corresponding batching; the lower discharging station (22) is positioned below the rotating center frame (1);
the feeding part comprises a preheating furnace (9) for heating the ingredients to a molten state; a batching output pipe (10) with a heating wire is arranged at an output port at the lower end of the preheating smelting furnace (9), a quantitative support (11) is arranged at the lower end of the batching output pipe (10), the quantitative support (11) is hinged with the middle front part of a quantitative storage tank (12) through a hinged shaft, a notch is arranged at the upper part of a feeding upper opening (13) of the quantitative storage tank (12), and the notch corresponds to the lower outlet of the batching output pipe (10) and is provided with a stop valve;
a counterweight (14) is arranged on the quantitative storage tank (12), and the counterweight (14) with the corresponding weight is configured according to the weight of the added ingredients;
when the quantitative storage tank (12) is unloaded, the quantitative storage tank (12) is light in head and heavy in feet; when the ingredient output pipe (10) is filled with the molten liquid ingredient in the quantitative storage tank (12), when the weight of the added ingredient reaches the set weight, the quantitative storage tank (12) swings to be light in weight at the quantitative support (11), and the molten ingredient flows down into the electric heating furnace (7) from the feeding upper opening (13);
a quantitative heating coil (16) is arranged on the quantitative storage tank (12), a quantitative electric slip ring (17) connected with the quantitative heating coil (16) is sleeved on a hinged shaft of the quantitative support (11), and a terminal contacted with the quantitative electric slip ring (17) is arranged on the quantitative support (11);
a guide inclined plate (15) is arranged on the inlet side of the lower discharging station (22), the guide inclined plate (15) is used for being in contact with the shifting arm (8), and the shifting arm (8) slides on the guide inclined plate (15) in the descending process of the heating smelting furnace (23), so that the quantitative storage tank (12) is tilted downwards for discharging;
a heating furnace (23) is arranged at the lower discharging station (22), and the heating furnace (23) is provided with a lower discharging hole (24);
the impurity removing part comprises a sub-packaging heating furnace (25) positioned below the lower discharging station (22), and an inclined bottom mesh frame (30) with a lifting lug (31) is arranged in the sub-packaging heating furnace (25); a supporting lug seat (26) is arranged above the inclined bottom screen frame (30), a hoisting hole (27) is arranged on the supporting lug seat (26), and an eccentric shaft (28) driven by a driving shaft (29) of a vibration motor through a telescopic rod is movably arranged on the hoisting hole (27);
the eccentric shaft (28) rotates in the hoisting hole (27) to drive the inclined bottom net frame (30) to rock in the split charging heating furnace (25).
CN202110744273.7A 2020-08-24 2020-08-24 High heat conduction aluminum alloy manufacturing installation for die-casting Pending CN113549791A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010856218.2A CN111926221A (en) 2020-08-24 2020-08-24 Preparation equipment and preparation method of high-thermal-conductivity aluminum alloy for die casting
CN202110744273.7A CN113549791A (en) 2020-08-24 2020-08-24 High heat conduction aluminum alloy manufacturing installation for die-casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110744273.7A CN113549791A (en) 2020-08-24 2020-08-24 High heat conduction aluminum alloy manufacturing installation for die-casting

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN202010856218.2A Division CN111926221A (en) 2020-08-24 2020-08-24 Preparation equipment and preparation method of high-thermal-conductivity aluminum alloy for die casting

Publications (1)

Publication Number Publication Date
CN113549791A true CN113549791A (en) 2021-10-26

Family

ID=73305036

Family Applications (3)

Application Number Title Priority Date Filing Date
CN202110744273.7A Pending CN113549791A (en) 2020-08-24 2020-08-24 High heat conduction aluminum alloy manufacturing installation for die-casting
CN202110744447.XA Pending CN113564394A (en) 2020-08-24 2020-08-24 Manufacturing process of die-casting high-heat-conductivity aluminum alloy for automobile
CN202010856218.2A Pending CN111926221A (en) 2020-08-24 2020-08-24 Preparation equipment and preparation method of high-thermal-conductivity aluminum alloy for die casting

Family Applications After (2)

Application Number Title Priority Date Filing Date
CN202110744447.XA Pending CN113564394A (en) 2020-08-24 2020-08-24 Manufacturing process of die-casting high-heat-conductivity aluminum alloy for automobile
CN202010856218.2A Pending CN111926221A (en) 2020-08-24 2020-08-24 Preparation equipment and preparation method of high-thermal-conductivity aluminum alloy for die casting

Country Status (1)

Country Link
CN (3) CN113549791A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113025855A (en) * 2021-03-04 2021-06-25 卓尔博(宁波)精密机电股份有限公司 High heat dissipation type alloy material motor casing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105750521A (en) * 2016-03-02 2016-07-13 慈溪阿尔特新材料有限公司 Semi-solid rheologic die-casting method capable of refining primary silicon of high-silicon aluminum alloy and device thereof
CN205980756U (en) * 2016-07-31 2017-02-22 浙江跃岭股份有限公司 Low pressure cast aluminium alloy wheel hub's aluminium pig preheats smelting pot device
CN109226712A (en) * 2018-11-05 2019-01-18 佛山市南海镕信金属制品有限公司 A kind of die casting machine clout waste material recovery device and treatment process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009036056A1 (en) * 2009-08-04 2011-02-10 Daimler Ag Impact-resistant aluminum alloy suitable for thick-walled die castings, especially crank cases, has specified composition
CN104498784A (en) * 2014-12-25 2015-04-08 马鸿斌 Novel aluminum-titanium alloy and preparation process thereof
MX2016010352A (en) * 2015-04-15 2018-02-09 Daiki Aluminium Ind Co Ltd Aluminum alloy for die casting, and die-cast aluminum alloy using same.
CN105256185B (en) * 2015-11-11 2017-09-08 天津爱田汽车部件有限公司 A kind of high heat conduction cast aluminium alloy gold
CN106367639A (en) * 2016-10-09 2017-02-01 马鸿斌 High-thermal-conductivity aluminum alloy and preparing method thereof
JP6852146B2 (en) * 2017-04-13 2021-03-31 株式会社大紀アルミニウム工業所 Aluminum alloy for die casting and aluminum alloy die casting using this
CN208162587U (en) * 2018-03-30 2018-11-30 常州卡斯特铝精密铸造科技有限公司 Low-pressure casting apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105750521A (en) * 2016-03-02 2016-07-13 慈溪阿尔特新材料有限公司 Semi-solid rheologic die-casting method capable of refining primary silicon of high-silicon aluminum alloy and device thereof
CN205980756U (en) * 2016-07-31 2017-02-22 浙江跃岭股份有限公司 Low pressure cast aluminium alloy wheel hub's aluminium pig preheats smelting pot device
CN109226712A (en) * 2018-11-05 2019-01-18 佛山市南海镕信金属制品有限公司 A kind of die casting machine clout waste material recovery device and treatment process

Also Published As

Publication number Publication date
CN113564394A (en) 2021-10-29
CN111926221A (en) 2020-11-13

Similar Documents

Publication Publication Date Title
CN107058785B (en) SiC particulate reinforced aluminum matrix composites preparation method
CN106555076A (en) A kind of resistance to 650 DEG C of high-temperature titanium alloy materials and preparation method thereof
CN206624907U (en) Crucible lifting formula vacuum melting furnace
CN113549791A (en) High heat conduction aluminum alloy manufacturing installation for die-casting
JP2005206927A (en) Compressor impeller made of aluminum alloy casting for turbocharger having excellent heat resistant strength
CN110000344B (en) Device and method for continuously preparing semi-solid slurry by inhibiting tin element segregation of ZCuSn10P1 alloy
CN110453115B (en) Novel automobile transmission shell die-casting aluminum alloy and preparation process thereof
CN100355519C (en) Magnesium alloy liquid controlling device
CN111876637A (en) Heat-resistant and wear-resistant Al-Si-Cu-Ni aluminum alloy and preparation method and application thereof
CN111575545A (en) High-strength die-casting alloy material for mobile phone middle plate and preparation method and application thereof
JP2012025986A (en) Aluminum-alloy cast compressor impeller and its manufacturing method
CN1757459A (en) Method for preparing semi-solidified slurry of aluminium alloy, and its forming apparatus
CN107254596A (en) A kind of achievable alloy refining degasification removal of impurities and churned mechanically multi-function device
CN102358922B (en) Light alloy semi-solid slurry preparation device
CN104357702B (en) One prepares nanometer Al 2o 3the device and method of particle enhanced aluminum-based composite material semi solid slurry
CN109825747A (en) A kind of high Squeezing ground Cutting free bismuth-containing aluminium alloy of low cost and preparation method thereof
CN112575230B (en) Semisolid die-casting aluminum alloy and preparation method and application thereof
CN112048645A (en) Preparation method and equipment of die-casting aluminum alloy material
CN1693012A (en) Method for founding aluminium alloy slab ingot
CN111961896A (en) Preparation method of aluminum alloy casting
CN111230059B (en) Continuous casting and rolling process method for aluminum alloy and aluminum-based composite material
CN111519060A (en) Device and method for preparing carbon-reinforced aluminum-based composite material
CN202322960U (en) Device for preparing light alloy semisolid slurry
CN101240381A (en) Composite thinning for aluminum alloy units of low-pressure casting automobile wheel
WO2020052129A1 (en) Rare-earth aluminum alloy material having high ductility and high strength and preparation method therefor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination