CN112893805A - Semi-solid rheologic die casting device and die casting method thereof - Google Patents
Semi-solid rheologic die casting device and die casting method thereof Download PDFInfo
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- CN112893805A CN112893805A CN202110056200.9A CN202110056200A CN112893805A CN 112893805 A CN112893805 A CN 112893805A CN 202110056200 A CN202110056200 A CN 202110056200A CN 112893805 A CN112893805 A CN 112893805A
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/007—Semi-solid pressure die casting
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/32—Controlling equipment
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Abstract
The invention discloses a semi-solid rheologic die-casting device which comprises a closed support, a base, a box cover, a first conveying plate, a second conveying plate, a feeding device and a die-casting device, wherein the bottom end of the closed support is connected with the upper end of the base, the top end of the closed support is connected with the box cover, an air outlet pipe is arranged on one side of the box cover connected with the closed support, a pouring cup is arranged at the upper end of the box cover, and a fourth thermocouple is arranged in the pouring cup. According to the semi-solid rheological die-casting device and the die-casting method thereof, the closed support is an enclosed space, works in the enclosed environment, factors influencing system heat exchange are reduced, control of system heat balance is facilitated, gas protection can be effectively performed, oxidation is prevented, quality of semi-solid rheological materials is improved, the semi-solid rheological materials flow into the shaping cavity through the graphite sleeve, the semi-solid rheological materials are die-cast through the punch, the lower die falls after die-casting is completed, workers demold the semi-solid rheological materials, and the whole device is simple to operate and does not need a large amount of labor.
Description
Technical Field
The invention relates to the technical field of semi-solid rheologic die casting devices, in particular to a semi-solid rheologic die casting device and a die casting method thereof.
Background
The die casting device hydraulically injects molten metal into a die to be cooled and formed under the action of pressure, and a solid metal casting can be obtained after die opening. Compared with the traditional liquid forming, the semi-solid forming can obviously improve the quality of a formed part, achieve the forging performance, realize the replacement of forging by casting, reduce the energy consumption and the cost and meet the requirement of light weight. The semi-solid rheoforming process has short technological process and short production period. Compared with thixoforming, the method avoids energy loss caused by secondary heating, and has lower cost and short period.
In the prior art, the die-casting precision and stability are not high, the quality of materials is reduced, and the oxidation condition is caused due to the influence of temperature and working environment.
Disclosure of Invention
The invention aims to provide a semi-solid rheological die-casting device and a die-casting method thereof.A closed support is a closed space, works in a closed environment, reduces factors influencing system heat exchange, is beneficial to controlling system heat balance, improving the precision and stability of temperature control, reducing heat loss, saving energy and reducing consumption, can effectively perform gas protection, preventing oxidation and improving the quality of semi-solid rheological materials so as to prevent the semi-solid rheological materials from being oxidized, the semi-solid rheological materials flow into a shaping cavity through a graphite sleeve, the semi-solid rheological materials are die-cast through a punch, a lower die falls after die casting is completed, and workers demold the semi-solid rheological materials, so that the problems in the prior art can be solved.
In order to achieve the purpose, the invention provides the following technical scheme:
a semi-solid rheologic die-casting device comprises a closed support, a base, a box cover, a first conveying plate, a second conveying plate, a feeding device and a die-casting device, wherein the bottom end of the closed support is connected with the upper end of the base, the top end of the closed support is connected with the box cover, an air outlet pipe is arranged on one side of the box cover connected with the closed support, a pouring cup is arranged at the upper end of the box cover, a fourth thermocouple is arranged in the pouring cup, a cooling plate is arranged at the lower end of the pouring cup, the cooling plate, the first conveying plate and the second conveying plate are arranged on one side of the inner wall of the closed support, the first conveying plate is arranged at the lower end of the cooling plate, the second conveying plate is arranged at the lower end of the first conveying plate, an air inlet pipe is arranged on one side of the closed support connected with the base, the die-casting device is arranged at, and a second thermocouple is arranged in the second conveying plate.
The die-casting device comprises an upper film, a lower film, a convex block, a shell, a fixed cavity, an upper cover, a graphite sleeve, a joint, a pipeline and a punch, wherein the convex block is arranged at the joint of the two ends of the upper film and the lower film, the fixed cavity is formed in the middle of the upper film and the lower film, the shell is arranged at the upper end of the upper film, the graphite sleeve is arranged on the two sides of the inner wall of the shell, the punch is arranged on the outer wall of the graphite sleeve, the upper cover is arranged at the upper end of the.
The feeding device comprises a valve, a feeding box, a feeding cavity, a heating rod, a movable baffle, a protection box, a heating coil and a third thermocouple, one end of the valve is connected with a pipeline arranged on one side of the shell, the other end of the valve is connected with the feeding box, the feeding cavity is arranged in the feeding box, the heating rod is installed in the feeding cavity, the protection box is installed at the upper end of the feeding box, the movable baffle is arranged at the joint of the protection box and the feeding box, and the heating coil and the third thermocouple are arranged on the inner wall of the protection box.
Preferably, one side of the outer wall of the shell is provided with a joint, and the joint penetrates through the shell and the graphite sleeve to be connected with one side of the punch.
Preferably, the cooling medium of the cooling plate is water or oil.
Preferably, a sealing ring is arranged between the upper cover and the shell.
Preferably, a guide post is arranged in the base.
Preferably, the first conveying plate and the second conveying plate are inclined plates, and the first conveying plate, the second conveying plate and the cooling plate are positioned on the same side,
another technical problem to be solved by the present invention is to provide a die casting method for a semi-solid rheologic die casting device, comprising the following steps:
s1: the semi-solid rheological material enters the pouring cup at a certain temperature.
S2: the lower end of the pouring cup is provided with an opening, and the semisolid rheological material flows into the upper end of the cooling plate through the opening.
S3: semi-solid state rheological material flows into first delivery board through the cooling plate end on, and first delivery board is the hang plate, and semi-solid state rheological material flows into to second delivery board upper end under the action of gravity, and the second delivery board is the hang plate, and semi-solid state rheological material flows into to the guard box in.
S4: when the temperature is reduced to a preset degree, the movable baffle at the bottom end of the protection box is opened, the semi-solid rheological material flows into the feeding box, and the heating rod in the feeding box heats the semi-solid rheological material at constant temperature again.
S5: when the temperature is reduced to a preset degree, a valve at one side of the feeding box is opened, and the semi-solid rheological material flows into the graphite sleeve through the pipeline.
S6: and the semi-solid rheological material flows into the shaping cavity through the graphite sleeve, and is die-cast through the punch.
Compared with the prior art, the invention has the following beneficial effects:
the invention relates to a semi-solid rheologic die casting device and a die casting method thereof.A first thermocouple, a second thermocouple and a third thermocouple can directly measure the temperature, convert the temperature signal into a thermal electromotive force signal, convert the thermal electromotive force signal into the temperature of a measured medium through an electric instrument, a closed bracket is a closed space, works in a closed environment, reduces the factors influencing the heat exchange of a system, is beneficial to the control of the heat balance of the system, is beneficial to improving the precision and the stability of temperature control, reduces the heat loss, is beneficial to energy conservation and consumption reduction, can also effectively carry out gas protection, prevents oxidation, improves the quality of semi-solid rheologic materials so as to prevent the semi-solid rheologic materials from being oxidized, when the semi-solid rheologic materials do not flow in, an upper film and a lower film are in a closed state, when a valve is opened after the semi-solid rheologic materials flow into a shaping cavity through, die-casting is carried out to semi-solid state rheology material through the drift, and the lower mould whereabouts after the die-casting is accomplished, and the staff demolds semi-solid state rheology material, and whole device easy operation does not need a large amount of manual works.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the die casting apparatus of the present invention;
FIG. 3 is a sectional view of the feeding device according to the present invention;
FIG. 4 is a schematic view of a first transfer plate of the present invention;
fig. 5 is a schematic view of a second conveying plate of the present invention.
In the figure: 1. closing the bracket; 101. a gear set; 2. a base; 3. a box cover; 4. a first conveying plate; 401. a first thermocouple; 5. a second conveyance board; 505. a second thermocouple; 6. a feeding device; 601. a valve; 602. a feeding box; 603. a feeding cavity; 604. a heating rod; 605. a movable baffle; 606. a protection box; 607. a heating coil; 608. a third thermocouple; 7. a die casting device; 701. coating a film; 702. a lower die; 703. a bump; 704. a housing; 705. a cavity is determined; 706. an upper cover; 707. a graphite sleeve; 708. a joint; 709. a pipeline; 710. a punch; 8. an air outlet pipe; 9. pouring a cup; 901. a fourth thermocouple; 10. a cooling plate; 11. an air inlet pipe.
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 of the embodiments. 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 invention.
Referring to fig. 1-5, a semi-solid rheologic die casting device comprises a closed support 1, a base 2, a box cover 3, a first conveying plate 4, a second conveying plate 5, a feeding device 6 and a die casting device 7, wherein the bottom end of the closed support 1 is connected with the upper end of the base 2, a guide post is arranged in the base 2, the top end of the closed support 1 is connected with the box cover 3, an air outlet pipe 8 is arranged at one side of the box cover 3 connected with the closed support 1, a pouring cup 9 is arranged at the upper end of the box cover 3, a fourth thermocouple 901 is arranged in the pouring cup 9, a cooling plate 10 is arranged at the lower end of the pouring cup 9, a cooling medium of the cooling plate 10 is water or oil, the cooling plate 10, the first conveying plate 4 and the second conveying plate 5 are arranged at one side of the inner wall of the closed support 1, the first conveying plate 4 and the second conveying plate 5 are both inclined plates, the first conveying plate 4, the second conveying plate 5 and the cooling, the lower end of the first conveying plate 4 is provided with a second conveying plate 5, one side, connected with the base 2, of the bottom end of the closed support 1 is provided with an air inlet pipe 11, the upper end of the base 2 is provided with a die-casting device 7, one end of the die-casting device 7 is provided with a feeding device 6, a first thermocouple 401 is arranged in the first conveying plate 4, a gear set 101 is arranged at the joint of the second conveying plate 5 and the closed support 1, and a second thermocouple 505 is arranged in the second conveying plate 5.
The die-casting device 7 comprises an upper film 701, a lower film 702, a bump 703, a shell 704, a fixed cavity 705, an upper cover 706, a graphite sleeve 707, a joint 708, a pipeline 709 and a punch 710, wherein the bump 703 is arranged at the joint of the two ends of the upper film 701 and the lower film 702, the fixed cavity 705 is arranged between the upper film 701 and the lower film 702, the shell 704 is arranged at the upper end of the upper film 701, the graphite sleeve 707 is arranged on the two sides of the inner wall of the shell 704, the punch 710 is arranged on the outer wall of the graphite sleeve 707, the upper cover 706 is arranged at the upper end of the shell 704, a sealing ring is arranged between the upper cover 706 and the shell 704, the joint 708 is arranged on one side of the outer wall of the shell 704, the joint 708 penetrates through the shell 704.
The feeding device 6 comprises a valve 601, a feeding box 602, a feeding cavity 603, a heating rod 604, a movable baffle 605, a protection box 606, a heating coil 607 and a third thermocouple 608, one end of the valve 601 is connected with a pipeline 709 arranged on one side of the outer shell 704, the other end of the valve 601 is connected with the feeding box 602, the feeding cavity 603 is arranged in the feeding box 602, the heating rod 604 is arranged in the feeding cavity 603, the protection box 606 is arranged at the upper end of the feeding box 602, the movable baffle 605 is arranged at the joint of the protection box 606 and the feeding box 602, and the heating coil 607 and the third thermocouple 608 are arranged on the inner wall of the protection box 606.
The first thermocouple 401, the second thermocouple 505 and the third thermocouple 608 can directly measure the temperature, and convert the temperature signal into a thermal electromotive force signal, and convert the thermal electromotive force signal into the temperature of a measured medium through an electric instrument, the closed bracket 1 is a closed space, works in a closed environment, the factors influencing the heat exchange of the system are reduced, the control of the heat balance of the system is facilitated, the precision and the stability of the temperature control are facilitated to be improved, the heat loss is reduced, the energy conservation and the consumption reduction are facilitated, the gas protection can be effectively carried out, the oxidation is prevented, the quality of the semi-solid rheological material is improved, the oxidation of the semi-solid rheological material is prevented, the upper film 701 and the lower film 702 are in a closed state when the semi-solid rheological material does not flow in, the valve 601 is opened after the semi-solid rheological material flows into the shaping cavity 705 through the graphite sleeve 707, the semi-solid rheological material is die-cast, the lower mould 702 falls after die-casting is completed, the worker demolds the semi-solid rheological material, and the whole device is simple to operate and does not need a large amount of labor.
A semi-solid rheologic die casting device and a die casting method thereof comprise the following steps:
the first step is as follows: the semi-solid rheological material enters the pouring cup 9 at a certain temperature.
The second step is that: the lower end of the pouring cup 9 is provided with an opening, and the semi-solid rheological material flows into the upper end of the cooling plate 10 through the opening.
The third step: semi-solid rheological material flows into the first conveying plate 4 through the tail end of the cooling plate 10, the first conveying plate 4 is an inclined plate, the semi-solid rheological material flows into the upper end of the second conveying plate 5 under the action of gravity, the second conveying plate 5 is an inclined plate, and the semi-solid rheological material flows into the protection box 606.
The fourth step: when the temperature is reduced to a preset degree, the movable baffle 605 at the bottom end of the protection box 606 is opened, the semi-solid rheological material flows into the feeding box 602, and the heating rod 604 in the feeding box 602 heats the semi-solid rheological material again at a constant temperature.
The fifth step: when the temperature drops to a predetermined level, the valve 601 at the side of the feed box 602 is opened and the semi-solid rheological material flows into the graphite sleeve 707 through the conduit 709.
And a sixth step: the semi-solid rheological material flows into the sizing cavity 705 through the graphite sleeve 707, and the semi-solid rheological material is die-cast through the punch 710.
In summary, according to the semi-solid rheologic die casting device and the die casting method thereof, the first thermocouple 401, the second thermocouple 505 and the third thermocouple 608 can directly measure the temperature, convert the temperature signal into the thermal electromotive force signal, convert the thermal electromotive force signal into the temperature of the measured medium through the electric instrument, the closed bracket 1 is a closed space, works in a closed environment, reduces the factors influencing the heat exchange of the system, is beneficial to the control of the heat balance of the system, is beneficial to improving the precision and the stability of the temperature control, reduces the heat loss, is beneficial to saving energy and reducing consumption, can also effectively perform gas protection, prevents oxidation, improves the quality of the semi-solid rheologic material, prevents the semi-solid rheologic material from being oxidized, when the semi-solid rheologic material does not flow in, the upper film 701 and the lower film 702 are in a closed state, when the valve 601 is opened after the flow, the semi-solid rheologic material flows into the sizing cavity, the semi-solid rheological material is die-cast through the punch 710, the lower die 702 falls after die-casting is completed, a worker demolds the semi-solid rheological material, and the whole device is simple to operate and does not need a large amount of labor.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a semi-solid state rheology die-casting device, includes closed support (1), base (2), case lid (3), first delivery board (4), second delivery board (5), pan feeding device (6) and die-casting device (7), its characterized in that: the bottom end of the closed support (1) is connected with the upper end of the base (2), the top end of the closed support (1) is connected with the box cover (3), an air outlet pipe (8) is installed on one side, connected with the closed support (1), of the box cover (3), a pouring cup (9) is installed at the upper end of the box cover (3), a fourth thermocouple (901) is arranged in the pouring cup (9), a cooling plate (10) is installed at the lower end of the pouring cup (9), the cooling plate (10), a first conveying plate (4) and a second conveying plate (5) are installed on one side of the inner wall of the closed support (1), the first conveying plate (4) is installed at the lower end of the cooling plate (10), the second conveying plate (5) is installed at the lower end of the first conveying plate (4), an air inlet pipe (11) is arranged on one side, connected with the base (2), a die-casting device (7) is arranged at the upper end of the, a first thermocouple (401) is arranged in the first conveying plate (4), a gear set (101) is arranged at the joint of the second conveying plate (5) and the closed bracket (1), and a second thermocouple (505) is arranged in the second conveying plate (5);
the die-casting device (7) comprises an upper film (701), a lower die (702), a bump (703), a shell (704), a sizing cavity (705), an upper cover (706), a graphite sleeve (707), a joint (708), a pipeline (709) and a punch (710), wherein the bump (703) is arranged at the joint of the two ends of the upper film (701) and the lower die (702), the sizing cavity (705) is formed between the upper film (701) and the lower die (702), the shell (704) is arranged at the upper end of the upper film (701), the graphite sleeve (707) is formed on the two sides of the inner wall of the shell (704), the punch (710) is arranged on the outer wall of the graphite sleeve (707), the upper cover (706) is arranged at the upper end of the shell (704), the joint (708) is arranged on one side of the outer;
the feeding device (6) comprises a valve (601), a feeding box (602), a feeding cavity (603), a heating rod (604), a movable baffle (605), a protection box (606), a heating coil (607) and a third thermocouple (608), one end of the valve (601) is connected with a pipeline (709) formed in one side of the shell (704), the other end of the valve (601) is connected with the feeding box (602), the feeding cavity (603) is formed in the feeding box (602), the heating rod (604) is installed in the feeding cavity (603), the protection box (606) is installed at the upper end of the feeding box (602), the movable baffle (605) is arranged at the joint of the protection box (606) and the feeding box (602), and the heating coil (607) and the third thermocouple (608) are arranged on the inner wall of the protection box (606).
2. A semi-solid rheocasting apparatus according to claim 1, wherein: and a joint (708) is arranged on one side of the outer wall of the shell (704), and the joint (708) penetrates through the shell (704) and the graphite sleeve (707) to be connected with one side of the punch (710).
3. A semi-solid rheocasting apparatus according to claim 1, wherein: the cooling medium of the cooling plate (10) is water or oil.
4. A semi-solid rheocasting apparatus according to claim 1, wherein: and a sealing ring is arranged between the upper cover (706) and the shell (704).
5. A semi-solid rheocasting apparatus according to claim 1, wherein: a guide post is arranged in the base (2).
6. A semi-solid rheocasting apparatus according to claim 1, wherein: the first conveying plate (4) and the second conveying plate (5) are inclined plates, and the first conveying plate (4), the second conveying plate (5) and the cooling plate (10) are located on the same side.
7. A method of die casting the semi-solid rheocasting apparatus of claim 1, comprising the steps of:
s1: the semi-solid rheological material enters the pouring cup (9) at a certain temperature;
s2: an opening is arranged at the lower end of the pouring cup (9), and the semisolid rheological material flows into the upper end of the cooling plate (10) through the opening;
s3: semi-solid rheological materials flow onto the first conveying plate (4) through the tail end of the cooling plate (10), the first conveying plate (4) is an inclined plate, the semi-solid rheological materials flow into the upper end of the second conveying plate (5) under the action of gravity, the second conveying plate (5) is an inclined plate, and the semi-solid rheological materials flow into the protection box (606);
s4: when the temperature is reduced to a preset degree, a movable baffle (605) at the bottom end of a protection box (606) is opened, the semi-solid rheological material flows into a feeding box (602), and a heating rod (604) in the feeding box (602) heats the semi-solid rheological material again at a constant temperature;
s5: when the temperature is reduced to a preset degree, a valve (601) at one side of a feeding box (602) is opened, and the semi-solid rheological material flows into a graphite sleeve (707) through a pipeline (709);
s6: the semi-solid rheological material flows into the fixed cavity (705) through the graphite sleeve (707), and is die-cast through the punch head (710).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110056200.9A CN112893805A (en) | 2021-01-15 | 2021-01-15 | Semi-solid rheologic die casting device and die casting method thereof |
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| CN202110056200.9A CN112893805A (en) | 2021-01-15 | 2021-01-15 | Semi-solid rheologic die casting device and die casting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050011626A1 (en) * | 2003-07-15 | 2005-01-20 | Deepak Saha | Semi-solid metal casting process of hypereutectic aluminum alloys |
| CN101602099A (en) * | 2009-06-30 | 2009-12-16 | 昆明理工大学 | A kind of device of metal parts semi-solid rheological molding |
| CN201427182Y (en) * | 2009-06-30 | 2010-03-24 | 昆明理工大学 | Semi-solid rheoforming device of metal parts |
| CN211758365U (en) * | 2019-12-25 | 2020-10-27 | 浙江方泰铝业有限公司 | Semi-solid rheoforming device for aluminum alloy |
-
2021
- 2021-01-15 CN CN202110056200.9A patent/CN112893805A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050011626A1 (en) * | 2003-07-15 | 2005-01-20 | Deepak Saha | Semi-solid metal casting process of hypereutectic aluminum alloys |
| CN101602099A (en) * | 2009-06-30 | 2009-12-16 | 昆明理工大学 | A kind of device of metal parts semi-solid rheological molding |
| CN201427182Y (en) * | 2009-06-30 | 2010-03-24 | 昆明理工大学 | Semi-solid rheoforming device of metal parts |
| CN211758365U (en) * | 2019-12-25 | 2020-10-27 | 浙江方泰铝业有限公司 | Semi-solid rheoforming device for aluminum alloy |
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Application publication date: 20210604 |