CN114833316A - Aluminum alloy fluidity detection device and method - Google Patents
Aluminum alloy fluidity detection device and method Download PDFInfo
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- CN114833316A CN114833316A CN202210230560.0A CN202210230560A CN114833316A CN 114833316 A CN114833316 A CN 114833316A CN 202210230560 A CN202210230560 A CN 202210230560A CN 114833316 A CN114833316 A CN 114833316A
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- funnel
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- aluminum alloy
- fluidity
- upper die
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims description 31
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 51
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000002344 surface layer Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 8
- 239000004411 aluminium Substances 0.000 claims description 6
- 239000010425 asbestos Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 4
- 229910052895 riebeckite Inorganic materials 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 abstract description 13
- 238000013101 initial test Methods 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000004576 sand Substances 0.000 description 7
- 239000000155 melt Substances 0.000 description 6
- 238000005266 casting Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000004321 preservation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
- B22D2/008—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass for the viscosity of the molten metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention relates to an aluminum alloy fluidity detection device, which comprises a base, an upper die arranged on the base and a funnel device matched with the upper die, wherein the center of the base is provided with a diversion trench, an inlet of the diversion trench vertically corresponds to an outlet of an upper die funnel, a funnel main body is attached to the upper die, the inlet of the upper die and the inlet of the funnel are tightly connected and arranged at the upper part of the diversion trench, the funnel main body comprises an outer side supporting part, an inner side surface layer and a lining positioned in the middle, scales are carved on the surface layer, and a control plug is arranged at the bottom of the funnel main body; meanwhile, the addition of the control plug ensures the stability of initial conditions before the start of an experiment, avoids the influence of pouring molten aluminum on the experiment, increases the repeatability of experiment operation, and ensures the stability of the volume of initial test melt due to the addition of the funnel scales.
Description
Technical Field
The application relates to the technical field of aluminum alloy smelting, in particular to a device and a method for detecting fluidity of an aluminum alloy.
Background
Currently in industrial applications, fluidity is an important measure of the castability of alloys, and is particularly important for precision casting and near-net-shape forming techniques.
Generally, the detection method of the aluminum liquid fluidity is divided into four methods: 1. vacuum suction method: one end of a quartz glass tube is connected with a vacuum pump or a single-pass rubber ball through a hose, the other end of the quartz glass tube is placed in a metal melt to be tested, the melt enters the quartz glass tube under the action of vacuum suction, the length of the metal liquid entering the quartz tube is measured by observing the rising height of a liquid column of a U-shaped tube, and the fluidity of the metal is determined. The quartz glass tube is fixed, after the molten aluminum is sucked up, the temperature of the glass tube is very high and is difficult to fix, the glass tube is heated only by the suspension force of the rubber hose, the metal left in the tube after the primary test is loosened is difficult to clean, the residual metal and oxide cause the secondary measurement data to be influenced by the influence of the molten aluminum to move upwards along the smooth glass tube for mold filling, the hot molten aluminum causes the air in the tube to expand, the liquid level of the tube rises, the test result is inaccurate, the heat conductivity coefficient of the glass tube is low, the flow channel is smooth, the difference between the test result and the actual production metal mold casting is large, and therefore the obtained data has the difference with the production.
2. Spiral flow sample test method: the method is also used for pouring a spiral mold by using a funnel, but other stabilizing measures are not provided, so that the fluidity length is greatly influenced by the pouring speed and the pouring temperature, a stable and repeatable experimental result is difficult to obtain, a pouring sample is greatly influenced by a pouring method, the obtained data is difficult to serve as a reliable data support material, a detection method for accurately controlling the fluidity of the melt is urgently needed to supplement the situation, and the invention is urgently brought forward under the consideration.
3. Thin sand plate fluidity test mold: the method continues the idea of testing the fluidity of the spiral sand mold, only replaces the sand mold with the thin sand plate, so that the operation flexibility is improved, the plug is manufactured in the pouring cup, the molten aluminum of the plug is lifted to enter the cavity when the casting is started, the mold filling speed is stable, the method has the defects that the residual melt in the pouring cup can solidify the whole pouring cup and the spiral casting into a whole, the thin sand plate and the pouring cup must be damaged in the process of taking out the casting, and the demolding process after the experiment is finished is very difficult.
4. Sand mould direct current channel resistance flow velocity determination method: the method is characterized in that after a direct-current channel sand mold is manufactured, a resistance wire is embedded in the direct-current channel part along the axis, and the mold filling speed and the mold filling length of molten metal are determined by measuring the resistance change size and speed at two ends of the resistance wire in the molten metal mold filling process.
Disclosure of Invention
The invention aims to provide an aluminum alloy fluidity detection device and method, which can be used for qualitatively detecting melt fluidity and have better heat preservation and repeatability compared with a conventional detection device.
In order to achieve the purpose, the invention provides the following technical scheme:
on one hand, the invention provides an aluminum alloy fluidity detection device, which comprises a base, an upper die arranged on the base and a funnel equipment main body matched with the upper die, and is characterized in that: the base center is provided with the guiding gutter, the guiding gutter entry corresponds from top to bottom with the export of last mould funnel, the funnel main part is laminated with last mould mutually, go up mould entry and funnel entry zonulae occludens and install on guiding gutter upper portion, the funnel main part includes outside supporting part, inboard top layer and the inside lining that is located the centre, is carved with the scale on wherein the top layer, is used for reflecting aluminium liquid volume, and the control stopper is installed funnel main part bottom control aluminium liquid flows into the guiding gutter.
In some aspects of the present invention, the flow guide groove has a spiral shape and a capacity of 2L.
In some aspects of the invention, the outer supporting part of the funnel body is an iron supporting part, the inner side of the funnel body is an AlN ceramic surface layer, the middle lining is an asbestos lining, and the AlN ceramic surface layer is provided with scales.
In some aspects of the invention, the upper die is laterally fitted with a catch for clamping the upper die.
In some aspects of the invention, the control plug is inverted funnel shaped with an angle of 45 °.
In some aspects of the invention, the control plug is iron hollow, so that the phenomenon that the temperature of the aluminum liquid is reduced too fast is avoided, and the control plug is provided with a long iron wire.
In another aspect, the present invention provides a method for detecting aluminum alloy fluidity using the above aluminum alloy fluidity detecting apparatus, which is characterized by comprising the following steps:
the method comprises the following steps: closing the base and the upper die, hooping two sides of the die by using buckles, and placing the control plug at the bottom of the funnel;
step two: pouring the taken high-temperature aluminum liquid into a funnel to enable the aluminum liquid level to be horizontal to the scale;
step three: measuring the temperature of the aluminum liquid in the funnel in real time by using a thermocouple, and quickly lifting the iron wire on the control plug when the temperature reaches 700 ℃ so as to enable the aluminum liquid to leak into the diversion trench of the lower base;
step four: and opening the upper die to separate the aluminum ingot from the die after the aluminum liquid is solidified, measuring the length of the spiral aluminum ingot, and analyzing the fluidity of the measured aluminum liquid, wherein the longer the length of the aluminum ingot is, the better the fluidity of the aluminum alloy is.
In some aspects of the invention, the aluminum liquid in step two is quantified 1L to the scale.
Compared with the prior art, the invention has the beneficial effects that:
the embodiment of the application provides equipment and a method for accurately controlling the fluidity of an aluminum alloy melt. The melt fluidity can be qualitatively detected, and the heat retaining property and the repeatability are better compared with the conventional detection device. The heat preservation device added into the funnel can reduce the reduction rate of the temperature of the melt in the waiting process of the experiment, so that the experiment is more accurate; meanwhile, the addition of the control plug ensures the stability of initial conditions before the start of the experiment, avoids the influence of pouring aluminum liquid on the experiment and increases the repeatability of experiment operation. The addition of the funnel scale also ensures a stable initial test melt volume.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a front view of an aluminum alloy fluidity testing apparatus of the present invention.
FIG. 2 is a schematic view of a control plug of the aluminum alloy fluidity detecting apparatus of the present invention.
FIG. 3 is a plan view of the aluminum alloy fluidity testing apparatus of the present invention.
FIG. 4 is a top view of the base of the aluminum alloy fluidity testing apparatus of the present invention.
In the figure: the method comprises the following steps of 1-base, 2-upper die, 3-funnel body, 4-control plug, 5-funnel surface layer, 6-funnel lining, 7-buckle and 8-diversion groove.
Detailed Description
The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1:
As shown in figure 2, an aluminum alloy mobility detection device still includes control stopper 4, control stopper 4 is the hourglass fill 3 forms that falls, and the oblique angle is 45, and the diameter phase-match of 4 sizes of control stopper and 3 bottoms of funnel avoids aluminium liquid to flow, and control stopper 4 is hollow for the iron simultaneously, can avoid because control stopper 4 quality is too big and the heat absorption is too many, causes aluminium liquid temperature to descend at the excessive speed, is a long iron wire on the control stopper 4, can control stopper 4 when the experiment begins and extract smoothly.
A method for detecting the fluidity of an aluminum alloy comprises the following steps: closing the base 1 and the upper die 2, hooping two sides of the die by using a buckle 7, and placing the control plug 4 at the bottom of the funnel 3; step two: pouring the taken high-temperature aluminum liquid into a funnel 3, and quantifying about 1L according to the scales to ensure that the aluminum liquid level is horizontal to the scales; step three: measuring the temperature of the aluminum liquid in the funnel 3 in real time by using a thermocouple, and quickly lifting an iron wire on the control plug 4 when the temperature reaches 700 ℃ so as to enable the aluminum liquid to leak into the diversion trench 8 of the lower base 1; step four: and opening the upper die 2 to separate the aluminum ingot from the die after the aluminum liquid is solidified, measuring the length of the spiral aluminum ingot, and analyzing the fluidity of the measured aluminum liquid, wherein the longer the length of the aluminum ingot is, the better the fluidity of the aluminum alloy is.
Compared with the prior art, the invention has the beneficial effects that:
the embodiment of the application provides an aluminum alloy fluidity detection device and method, which can be used for qualitatively detecting the fluidity of a melt, and has better heat preservation and repeatability compared with a conventional detection device; meanwhile, the addition of the control plug ensures the stability of initial conditions before the start of an experiment, avoids the influence of pouring molten aluminum on the experiment, increases the repeatability of experiment operation, and ensures the stability of the volume of initial test melt due to the addition of the funnel scales.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (8)
1. The utility model provides an aluminum alloy mobility detection device, includes base (1), install last mould (2) on base (1) and with last mould (2) funnel (3) equipment main part that agree with mutually, its characterized in that: base (1) center is provided with guiding gutter (8), guiding gutter (8) entry corresponds from top to bottom with the export of last mould (2) funnel (3), funnel (3) main part is laminated mutually with last mould (2), go up mould (2) entry and funnel (3) entry zonulae occludens and install on guiding gutter (8) upper portion, funnel (3) main part includes outside support section, inboard top layer (5) and be located middle inside lining (6), wherein is carved with the scale on top layer (5) for reflect aluminium liquid volume, control stopper (4) are installed funnel (3) main part bottom control aluminium liquid flows into guiding gutter (8).
2. The aluminum alloy fluidity detecting device according to claim 1, characterized in that: the diversion trench (8) is spiral and has a capacity of 2L.
3. The aluminum alloy fluidity detecting device according to claim 1, characterized in that: the outside supporting part of the main body of the funnel (3) is an iron supporting part, the inside of the main body is an AlN ceramic surface layer (5), the middle lining (6) is an asbestos lining (6), and scales are arranged on the AlN ceramic surface layer (5).
4. The aluminum alloy fluidity detecting device according to claim 1, characterized in that: and a buckle (7) for clamping the upper die (2) is arranged on the side surface of the upper die (2).
5. The aluminum alloy fluidity detecting device according to claim 1, characterized in that: the control plug (4) is in the shape of an inverted funnel (3), and the oblique angle is 45 degrees.
6. The aluminum alloy fluidity detecting device according to claim 5, characterized in that: the control plug (4) is hollow due to iron, so that the temperature of the aluminum liquid is prevented from being reduced too fast, and a long iron wire is arranged on the control plug (4).
7. A method for aluminum alloy fluidity test using the aluminum alloy fluidity test apparatus of any one of claims 1 to 6, characterized by comprising the steps of:
the method comprises the following steps: closing the base (1) and the upper die (2), hooping two sides of the die by using a buckle (7), and placing the control plug (4) at the bottom of the funnel (3);
step two: pouring the taken high-temperature aluminum liquid into a funnel (3) to enable the aluminum liquid level to be horizontal to the scale;
step three: measuring the temperature of the aluminum liquid in the funnel (3) in real time by using a thermocouple, and quickly lifting an iron wire on the control plug (4) when the temperature reaches 700 ℃ so as to enable the aluminum liquid to leak into a diversion trench (8) of the lower base (1);
step four: and opening the upper die (2) to separate the aluminum ingot from the die after the aluminum liquid is solidified, measuring the length of the spiral aluminum ingot, and analyzing the fluidity of the measured aluminum liquid, wherein the longer the length of the aluminum ingot is, the better the fluidity of the aluminum alloy is.
8. The method for detecting the fluidity of the aluminum alloy, according to claim 7, wherein: and quantifying the aluminum liquid by 1L according to the scale in the second step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210230560.0A CN114833316A (en) | 2022-03-10 | 2022-03-10 | Aluminum alloy fluidity detection device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210230560.0A CN114833316A (en) | 2022-03-10 | 2022-03-10 | Aluminum alloy fluidity detection device and method |
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| CN114833316A true CN114833316A (en) | 2022-08-02 |
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| CN202210230560.0A Pending CN114833316A (en) | 2022-03-10 | 2022-03-10 | Aluminum alloy fluidity detection device and method |
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