CN112921197A - Smelting process of die-casting aluminum alloy for automobile parts - Google Patents
Smelting process of die-casting aluminum alloy for automobile parts Download PDFInfo
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- CN112921197A CN112921197A CN202110114201.4A CN202110114201A CN112921197A CN 112921197 A CN112921197 A CN 112921197A CN 202110114201 A CN202110114201 A CN 202110114201A CN 112921197 A CN112921197 A CN 112921197A
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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
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/06—Obtaining aluminium refining
- C22B21/066—Treatment of circulating aluminium, e.g. by filtration
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
- C22B9/055—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ while the metal is circulating, e.g. combined with filtration
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
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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
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- 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
Abstract
The invention discloses a smelting process of automobile part die-casting aluminum alloy, belonging to the field of aluminum alloy smelting, and the smelting process comprises the following steps: s1, firstly, crushing aluminum alloy ingots into small blocks, then putting the small blocks into a smelting furnace, preheating the smelting furnace to dry moisture, then sealing a furnace cover and pumping out air in the smelting furnace, in the scheme, the smelting high temperature is utilized to enable gas to be heated and expanded so as to enable a refining aid disc to be broken, zinc chloride and chlorine can generate chemical reaction in the furnace to generate gaseous aluminum chloride, impurities, gas and the like are adsorbed together to float upwards in the floating process, the purification effect is effectively improved, aluminum alloy and manganese chloride react to generate aluminum chloride as well, the purification effect is deepened, the consumption of manganese chloride enables the nitrogen to be released, the nitrogen forms bubbles to take away the aluminum oxide and the hydrogen, the slag removal and degassing effects are further improved, and the catcher can take away suspended aluminum oxide to the liquid level in the floating process of the broken refining aid disc so as to improve the slag removal.
Description
Technical Field
The invention relates to the field of aluminum alloy smelting, in particular to a smelting process of die-casting aluminum alloy for automobile parts.
Background
Smelting, namely a pyrometallurgical process in which metal materials and other auxiliary materials are put into a heating furnace to be melted and tempered, and the materials of furnace materials are subjected to certain physical and chemical changes in the high-temperature (1300-1600K) furnace to produce crude metal or metal concentrates and furnace slag. In addition to concentrates, calcines, sinter, etc., the charge sometimes needs to be supplemented with fluxes for the charge to melt easily and with reducing agents for some reactions. In addition, to provide the necessary temperature, fuel is often added for combustion and air or oxygen-enriched air is fed. The crude metal or metal concentrate is separated due to its low miscibility with molten slag and density differential into two layers. The concentrate includes matte, yellow slag, etc., which must be processed by converting or other methods to obtain metal.
The primary metal product obtained by smelting is typically crude metal (multi-component alloy melt) or an intermediate product matte, which requires further treatment to obtain crude metal. The crude metal is often enriched with precious metals and other valuable components and further refining is required to obtain a final metal product suitable for various uses and to recover the precious metals and other valuable components in an integrated manner. Smelting also produces another important product slag. The non-ferrous metal slag is an oxide melt mainly comprising ferrosilicate (2 FeO. SiO2), mainly consists of FeO-SiO2-CaO ternary system and accounts for about 80-90% of the total slag. The amount of slag often equals or exceeds the yield of the main metal product, and its properties greatly affect whether the smelting process can be carried out smoothly.
The aluminum alloy used for manufacturing automobile parts can generate furnace slag due to moisture and air inclusion in the smelting process, in the existing smelting process, deslagging and hydrogen removal are mainly carried out by adding a deslagging agent and introducing gas, but because the specific gravity of aluminum oxide is very close to that of the aluminum alloy, the aluminum oxide remains in the aluminum liquid and cannot automatically float to the upper liquid level, so the treatment effect is not good, the applied equipment and operation are complex, and the production cost is increased.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a die-casting aluminum alloy melting process for automobile parts, which effectively improves the removal rate of slag and hydrogen by adding a smelting-assisting disc, firstly, gas is heated and expanded by utilizing the high temperature of melting so that the smelting-assisting disc is broken to release inert gas, alumina and hydrogen are taken away in the floating process of the inert gas, zinc chloride and chlorine can generate chemical reaction in a furnace to generate gaseous aluminum chloride, impurities, gas and the like are adsorbed and float upwards in the floating process, the purification effect is effectively improved, aluminum alloy and manganese chloride react to generate aluminum chloride, the purification effect is deepened, the consumption of manganese chloride enables nitrogen to be released, the nitrogen forms bubbles to take away the alumina and the hydrogen, the deslagging and degassing effects are further improved, the broken smelting-assisting disc is made of ceramic materials, and the melting point of the ceramic materials is higher than that of the aluminum alloy, The specific gravity of the aluminum alloy is smaller than that of aluminum alloy, so the aluminum alloy floating filter can float upwards, and the catcher can take suspended aluminum oxide to the liquid level in the floating process to improve the slag removal rate.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A smelting process of die-casting aluminum alloy for automobile parts comprises the following steps:
s1, firstly, crushing an aluminum alloy ingot into small blocks, then putting the small blocks into a smelting furnace, preheating the smelting furnace to dry moisture, and then sealing a furnace cover and pumping out air in the smelting furnace;
s2, heating the smelting furnace to carry out primary smelting, exhausting in the primary smelting process, opening the furnace to remove slag at regular time, and extracting mixed air after closing the furnace cover each time;
s3, continuing to heat up to keep the temperature of the smelting furnace between 720 and 750 ℃, and adding a proper amount of smelting-assisting discs into the smelting furnace and slowly stirring;
and S4, in the stirring process, the broken smelting-assisting disc and the slag are fished up by a strainer with a filter screen, the unbroken smelting-assisting disc is thrown back into the smelting furnace again, and the stirring and the slag fishing are carried out continuously until no slag appears.
Further, the proportion of the refining aid disc and the aluminum alloy liquid which are put into the step S3 is 1-2%, so that the efficient purification effect can be ensured without influencing the components of the aluminum alloy.
Further, the milling assisting disc in the step S3 is disc-shaped and comprises an intermediate body and two sealing bodies, the intermediate body is located between the two sealing bodies, and the two sealing bodies are broken into a plurality of small fragments to release chlorine and powdery chloride salt during breakage, so that the intermediate body releases nitrogen.
Further, the midbody is of a hollow structure, nitrogen is filled in the midbody, a plurality of air outlets are formed in the side walls of the two sides of the midbody, crystalline chlorine salt is filled in the air outlets, the crystalline chlorine salt is manganese chloride, aluminum alloy reacts with the manganese chloride to generate aluminum chloride, the aluminum chloride is in a gaseous state in the smelting furnace, and alumina and hydrogen are taken away in the floating process of the rest nitrogen to achieve the purification effect.
Furthermore, a plurality of pre-fracture cavities are formed in the sealing body, inert gas is filled in the pre-fracture cavities, and the inert gas is expanded in the pre-fracture cavities due to the high temperature of the aluminum alloy liquid, so that the sealing body is fractured.
Furthermore, the pre-fracture cavity comprises a spherical cavity, the periphery of the spherical cavity is communicated with a plurality of conical cavities, and the inclined planes of the conical cavities improve the permeability of gas, so that the fracture difficulty of the sealing body is reduced.
Furthermore, a mixture of chlorine and powdery chloride salt is filled between the inner wall of the intermediate body and the inner wall of the sealing body, the mixing ratio of the chlorine to the powdery chloride salt is 2:1, the powdery chloride salt is zinc chloride, the zinc chloride and the chlorine can generate chemical reaction in the furnace to generate gaseous aluminum chloride, impurities, gas and the like are adsorbed together to float in the floating process, and the purification effect is effectively improved.
Furthermore, the side wall of the intermediate body and the inner and outer walls of the sealing body are fixedly connected with a plurality of traps which are arranged at equal intervals, and suspended alumina can be taken away by the traps to the liquid level in the floating process so as to improve the deslagging rate.
Furthermore, the catcher is composed of two hook-shaped metal wires which are combined together, so that impurities can be hooked, and is made of high-melting-point alloy materials, and the melting point of the catcher is higher than that of aluminum alloy, so that the catcher is ensured not to be melted.
Furthermore, the intermediate body and the sealing body are both made of ceramic materials, and the melting point of the ceramic is higher than that of the aluminum alloy, and the specific gravity of the ceramic is smaller than that of the aluminum alloy, so that the ceramic can float to the liquid level to avoid remaining in the aluminum alloy.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme effectively improves the removal rate of slag and hydrogen by adding the smelting-assisting disc, firstly, gas is heated to expand by utilizing the high temperature of smelting so that the smelting-assisting disc is broken to release inert gas, aluminum oxide and hydrogen are taken away in the floating process of the inert gas, zinc chloride and chlorine can generate chemical reaction in the furnace to generate gaseous aluminum chloride, impurities, gas and the like are adsorbed and float together in the floating process, the purification effect is effectively improved, aluminum alloy reacts with manganese chloride to generate aluminum chloride, the purification effect is enhanced, the consumption of the manganese chloride enables the nitrogen to be released, the nitrogen forms bubbles to take away the aluminum oxide and the hydrogen, the effects of deslagging and degassing are further improved, the broken smelting-assisting disc is made of ceramic materials, the melting point is higher than that of the aluminum alloy, the specific gravity is smaller than that of the aluminum alloy, and the, in addition, the catcher can take suspended alumina to the liquid surface in the floating process so as to improve the slag removal rate.
(2) The proportion of the milling-assisting disc and the aluminum alloy liquid which are put into the step S3 is 1-2%, so that the components of the aluminum alloy are not influenced and the efficient purification effect can be ensured.
(3) The refining assisting disc in the step S3 is disc-shaped and comprises an intermediate body and two sealing bodies, the intermediate body is located between the two sealing bodies, and the two sealing bodies are broken into a plurality of small fragments to release chlorine and powdery chlorine salt when the two sealing bodies are broken, so that the intermediate body releases nitrogen.
(4) The midbody is hollow structure, and the inside packing of midbody has nitrogen gas, and a plurality of ventholes have all been seted up to the both sides lateral wall of midbody, and fill in the venthole and have been filled with crystalline chloride salt, and crystalline chloride salt is manganese chloride, and aluminum alloy and manganese chloride reaction produce aluminium chloride, and aluminium chloride is the gaseous state in the smelting pot, and alumina and hydrogen are taken away to the in-process of all the other nitrogen gas come-up to play the effect of purification.
(5) A plurality of pre-fracture cavities are formed in the sealing body, inert gas is filled in the pre-fracture cavities, and the inert gas is expanded in the pre-fracture cavities due to the high temperature of the aluminum alloy liquid, so that the sealing body is fractured.
(6) The pre-fracture cavity comprises a spherical cavity, the periphery of the spherical cavity is communicated with a plurality of conical cavities, and the inclined surfaces of the conical cavities improve the permeability of gas, so that the fracture difficulty of the sealing body is reduced.
(7) The mixture of chlorine and powdery chloride salt is filled between the inner wall of the intermediate and the inner wall of the sealing body, the mixing ratio of the chlorine to the powdery chloride salt is 2:1, the powdery chloride salt is zinc chloride, the zinc chloride and the chlorine can generate chemical reaction in the furnace to generate gaseous aluminum chloride, impurities, gas and the like are adsorbed and floated together in the floating process, and the purification effect is effectively improved.
(8) The side wall of midbody and the interior outer wall of seal all fixedly connected with a plurality of traps that equidistant set up, the in-process trap of come-up can take away suspended aluminium oxide to the liquid level in order to improve the slagging rate.
(9) The trap consists of two combined hook-shaped metal wires for hooking impurities, and is made of high-melting-point alloy material, and the melting point of the trap is higher than that of aluminum alloy so as to ensure that the trap cannot be melted.
(10) The intermediate and the sealing body are both made of ceramic materials, the melting point of the ceramic is higher than that of the aluminum alloy, and the specific gravity of the ceramic is smaller than that of the aluminum alloy, so that the ceramic can float to the liquid level to avoid remaining in the aluminum alloy.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic cross-sectional view of a refining aid pan of the present invention;
FIG. 3 is a schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic view of the structure of the refining aid disk of the present invention at the time of rupture.
The reference numbers in the figures illustrate:
1 intermediate, 2 sealing bodies, 3 air outlet holes, 4 crystalline chlorine salt, 5 pre-breaking cavities, 6 powdered chlorine salt and 7 traps.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
referring to fig. 1-4, a process for melting an aluminum alloy for die casting of an automobile part, referring to fig. 1, includes the following steps:
s1, firstly, crushing an aluminum alloy ingot into small blocks, then putting the small blocks into a smelting furnace, preheating the smelting furnace to dry moisture, and then sealing a furnace cover and pumping out air in the smelting furnace;
s2, heating the smelting furnace to carry out primary smelting, exhausting in the primary smelting process, opening the furnace to remove slag at regular time, and extracting mixed air after closing the furnace cover each time;
s3, continuing to heat up to keep the temperature of the smelting furnace between 720 and 750 ℃, and adding a proper amount of smelting-assisting discs into the smelting furnace and slowly stirring;
and S4, in the stirring process, the broken smelting-assisting disc and the slag are fished up by a strainer with a filter screen, the unbroken smelting-assisting disc is thrown back into the smelting furnace again, and the stirring and the slag fishing are carried out continuously until no slag appears.
The proportion of the smelting-assisting disc and the aluminum alloy liquid which are put into the step S3 is 1-2%, so that the components of the aluminum alloy are not influenced and the efficient purification effect can be ensured;
referring to fig. 2-3, the refining aid disc in the step S3 is disc-shaped, the refining aid disc includes an intermediate body 1 and two sealing bodies 2, the intermediate body 1 and the sealing bodies 2 are made of ceramic materials, the melting point of the ceramic is higher than that of the aluminum alloy, and the specific gravity of the ceramic is smaller than that of the aluminum alloy, so that the ceramic can float up to the liquid surface to avoid remaining in the aluminum alloy, the intermediate body 1 is located between the two sealing bodies 2, when the intermediate body 2 is broken, the two sealing bodies 2 are broken into a plurality of small fragments to release chlorine gas and powdery chloride salt 6, further the intermediate body 1 releases nitrogen gas, a mixture of chlorine gas and the powdery chloride salt 6 is filled between the inner wall of the intermediate body 1 and the inner wall of the sealing body 2, the mixing ratio of the chlorine gas and the powdery chloride salt 6 is 2:1, the powdery chloride salt 6 is zinc chloride, the, The gas and the like are adsorbed to float upwards together, the purification effect is effectively improved, a plurality of traps 7 which are arranged at equal intervals are fixedly connected to the side wall of the intermediate body 1 and the inner and outer walls of the sealing body 2, suspended alumina can be taken away by the traps 7 to the liquid level in the floating process so as to improve the slag removal rate, the traps 7 are composed of two hook-shaped metal wires which are combined together and are used for hooking impurities, the traps 7 are made of high-melting-point alloy materials, and the melting point of the traps 7 is higher than that of aluminum alloy so as to ensure that the traps 7 cannot be melted;
referring to fig. 3-4, the intermediate body 1 is a hollow structure, nitrogen is filled in the intermediate body 1, a plurality of air outlet holes 3 are formed in the side walls of the two sides of the intermediate body 1, crystalline chlorine salt 4 is filled in the air outlet holes 3, the crystalline chlorine salt 4 is manganese chloride, aluminum alloy reacts with the manganese chloride to generate aluminum chloride, the aluminum chloride is in a gaseous state in a smelting furnace, alumina and hydrogen are taken away in the floating process of the rest nitrogen to achieve a purification effect, a plurality of pre-fracture cavities 5 are formed in the sealing body 2, the pre-fracture cavities 5 comprise spherical cavities, the peripheries of the spherical cavities are communicated with a plurality of conical cavities, the inclined planes of the conical cavities improve the permeability of the gas, so that the fracture difficulty of the sealing body 2 is reduced, inert gas is filled in the pre-fracture cavities 5, and the inert gas is expanded in the pre-fracture cavities 5 due to the high temperature of the aluminum alloy.
The scheme effectively improves the removal rate of slag and hydrogen by adding the smelting-assisting disc, firstly, gas is heated to expand by utilizing the high temperature of smelting so that the smelting-assisting disc is broken to release inert gas, aluminum oxide and hydrogen are taken away in the floating process of the inert gas, zinc chloride and chlorine can generate chemical reaction in the furnace to generate gaseous aluminum chloride, impurities, gas and the like are adsorbed and float together in the floating process, the purification effect is effectively improved, aluminum alloy reacts with manganese chloride to generate aluminum chloride, the purification effect is enhanced, the consumption of the manganese chloride enables the nitrogen to be released, the nitrogen forms bubbles to take away the aluminum oxide and the hydrogen, the effects of deslagging and degassing are further improved, the broken smelting-assisting disc is made of ceramic materials, the melting point is higher than that of the aluminum alloy, the specific gravity is smaller than that of the aluminum alloy, and the, in addition, the catcher can take suspended alumina to the liquid surface in the floating process so as to improve the slag removal rate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.
Claims (10)
1. A smelting process of die-casting aluminum alloy for automobile parts is characterized by comprising the following steps: the method comprises the following steps:
s1, firstly, crushing an aluminum alloy ingot into small blocks, then putting the small blocks into a smelting furnace, preheating the smelting furnace to dry moisture, and then sealing a furnace cover and pumping out air in the smelting furnace;
s2, heating the smelting furnace to carry out primary smelting, exhausting in the primary smelting process, opening the furnace to remove slag at regular time, and extracting mixed air after closing the furnace cover each time;
s3, continuing to heat up to keep the temperature of the smelting furnace between 720 and 750 ℃, and adding a proper amount of smelting-assisting discs into the smelting furnace and slowly stirring;
and S4, in the stirring process, the broken smelting-assisting disc and the slag are fished up by a strainer with a filter screen, the unbroken smelting-assisting disc is thrown back into the smelting furnace again, and the stirring and the slag fishing are carried out continuously until no slag appears.
2. The die-casting aluminum alloy smelting process for the automobile parts as claimed in claim 1, wherein: the proportion of the milling-assisting disc and the aluminum alloy liquid which are put into the step S3 is 1-2%.
3. The die-casting aluminum alloy smelting process for the automobile parts as claimed in claim 1, wherein: the mixing assisting disc in the step S3 is disc-shaped and comprises an intermediate body (1) and two sealing bodies (2), and the intermediate body (1) is located between the two sealing bodies (2).
4. The die-casting aluminum alloy smelting process for the automobile parts as claimed in claim 3, wherein: midbody (1) is hollow structure, the inside packing of midbody (1) has nitrogen gas, a plurality of ventholes (3) have all been seted up to the both sides lateral wall of midbody (1), and pack in venthole (3) and have crystalline chlorine salt (4), crystalline chlorine salt (4) are manganese chloride.
5. The die-casting aluminum alloy smelting process for the automobile parts as claimed in claim 3, wherein: a plurality of pre-cracking cavities (5) are formed in the sealing body (2), and inert gas is filled in the pre-cracking cavities (5).
6. The die-casting aluminum alloy smelting process for the automobile parts as claimed in claim 5, wherein: the pre-breaking cavity (5) comprises a spherical cavity, and the periphery of the spherical cavity is communicated with a plurality of conical cavities.
7. The die-casting aluminum alloy smelting process for the automobile parts as claimed in claim 3, wherein: a mixture of chlorine and powdery chloride salt (6) is filled between the inner wall of the intermediate (1) and the inner wall of the sealing body (2), the mixing ratio of the chlorine to the powdery chloride salt (6) is 2:1, and the powdery chloride salt (6) is zinc chloride.
8. The die-casting aluminum alloy smelting process for the automobile parts as claimed in claim 3, wherein: the side wall of the intermediate body (1) and the inner and outer walls of the sealing body (2) are fixedly connected with a plurality of traps (7) arranged at equal intervals.
9. The die-casting aluminum alloy smelting process for the automobile parts as claimed in claim 8, wherein: the catcher (7) is composed of two jointed hook-shaped metal wires, and the catcher (7) is made of high-melting-point alloy material.
10. The die-casting aluminum alloy smelting process for the automobile parts as claimed in claim 3, wherein: the intermediate body (1) and the sealing body (2) are both made of ceramic materials.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114058875A (en) * | 2021-09-27 | 2022-02-18 | 王俊艳 | Aluminum alloy casting sinking and floating type degassing method |
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| CN110983124A (en) * | 2019-12-26 | 2020-04-10 | 营口忠旺铝业有限公司 | High-conductivity 6-series aluminum alloy and production process thereof |
| CN111057889A (en) * | 2020-01-02 | 2020-04-24 | 西安昆仑工业（集团）有限责任公司 | Preparation method of die-casting aluminum alloy material |
| CN112226654A (en) * | 2020-10-09 | 2021-01-15 | 合肥坤擎机械科技有限公司 | Die-casting aluminum alloy for 5G communication base station shell and preparation method thereof |
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