CN116174684A - Semi-solid die casting die for magnesium alloy - Google Patents
Semi-solid die casting die for magnesium alloy Download PDFInfo
- Publication number
- CN116174684A CN116174684A CN202111429599.7A CN202111429599A CN116174684A CN 116174684 A CN116174684 A CN 116174684A CN 202111429599 A CN202111429599 A CN 202111429599A CN 116174684 A CN116174684 A CN 116174684A
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- CN
- China
- Prior art keywords
- hot runner
- runner plate
- magnesium alloy
- die casting
- fastening block
- 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
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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
- 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
-
- 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
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
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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
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2272—Sprue channels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention provides a magnesium alloy semi-solid die casting die which comprises an annular fastening block and a hot runner plate assembly, wherein the hot runner plate assembly comprises a front hot runner plate, a rear hot runner plate, a left hot runner plate and a right hot runner plate; the joint of the left hot runner plate, the front hot runner plate and the rear hot runner plate is sleeved with an annular fastening block; the joint of the right hot runner plate, the front hot runner plate and the rear hot runner plate is sleeved with an annular fastening block. The invention strengthens the strength among the components and improves the production efficiency; the hot runner can be kept at high temperature, the temperature loss of the aluminum liquid at the position is reduced, and the phenomenon that cold materials and hot runners are blocked on products is reduced.
Description
Technical Field
The invention mainly relates to the field of semi-solid die casting dies, in particular to a magnesium alloy semi-solid die casting die.
Background
At present, the whole casting industry is pursued for light weight, and some magnesium alloy products are required for higher quality, a semi-solid die casting machine is selected, however, because the die temperature fields are different in the production of the die casting die, the thermal expansion areas of the die are also different, the die parts are made into a plurality of parts, some parts cannot be well connected, the strength of the whole assembly is reduced, the replacement is damaged, 6H is required, and the production efficiency is low;
in addition, in the production of the die casting die, cold isolation is easy to occur on the product, and the runner is blocked due to low temperature of the hot runner.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a magnesium alloy semi-solid die casting die which comprises an annular fastening block 1 and a hot runner plate assembly, wherein the hot runner plate assembly comprises a front hot runner plate 2, a rear hot runner plate 3, a left hot runner plate 4 and a right hot runner plate 5, the front hot runner plate 2 and the rear hot runner plate 3 are mutually attached to each other along one side of a nozzle and an internal runner, both ends of the front hot runner plate 2 and the rear hot runner plate 3 are provided with a left hot runner plate 4 and a right hot runner plate 5, and channels inside the left hot runner plate 4 and the right hot runner plate 5 are communicated with the internal runners of the front hot runner plate 2 and the rear hot runner plate 3 in a front-back manner;
the annular fastening block 1 is sleeved outside the joint of the left hot runner plate 4, the front hot runner plate 2 and the rear hot runner plate 3;
the joint of the right hot runner plate 5, the front hot runner plate 2 and the rear hot runner plate 3 is sleeved with an annular fastening block 1.
Preferably, the upper and lower end surfaces of the hot runner plate assembly are each provided with a plurality of layers of heat insulation gaskets 6.
Preferably, the tops of the front hot runner plate 2 and the rear hot runner plate 3 are symmetrically provided with strip-shaped multi-layer heat insulation gaskets 6 on the areas avoiding the nozzles and the screw holes, and the tops of the left hot runner plate 4 and the right hot runner plate 5 are provided with square multi-layer heat insulation gaskets 6.
Preferably, the bottom surface of the hot runner plate assembly is provided with three multi-layered heat insulation gaskets 6, and the sizes of the bottoms of the left hot runner plate 4, the right hot runner plate 5, the front hot runner plate 2 and the rear hot runner plate 3 are the same as those of the bottoms of the left hot runner plate 4, the right hot runner plate 5, the front hot runner plate 2 and the rear hot runner plate 3 respectively.
Preferably, the annular fastening block 1 is provided with pin holes 7, and the pin holes 7 are provided with a pair.
Preferably, screw holes are also formed at the top of the left hot runner plate 4 and the right hot runner plate 5 corresponding to the pin holes 7, and the pin holes 7 and the screw holes are coaxially arranged and fastened through pins.
Preferably, the width of the annular fastening block 1 does not exceed the width of the hot runner plate assembly.
The invention has the beneficial effects that:
1. the annular fastening mechanism is adopted, so that the problems of connection, assembly and matching between the components are effectively solved, the strength between the components is further enhanced, and the production efficiency is improved;
2. by adopting the mechanism of the multi-layer heat insulation plate, solid contact thermal resistance exists between the multi-layer heat insulation plate, which is not beneficial to heat transfer, and can keep the hot runner at high temperature, reduce the temperature loss of molten aluminum at the position, and reduce the phenomena of cold materials and blockage of the hot runner on products.
Drawings
FIG. 1 is a perspective view of the present invention with the right hot runner plate omitted;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a top view of the present invention, excluding the annular fastening block;
FIG. 5 is a bottom view of the present invention, excluding the annular fastening block;
in the drawing the view of the figure,
1. an annular fastening block; 2. a front hot runner plate; 3. a rear hot runner plate; 4. a left hot runner plate;
5. a right hot runner plate; 6. a multi-layer insulating mat; 7. pin holes.
Detailed Description
The present invention will be further described with reference to the following examples in order to better understand the technical solutions of the present invention and to make the above features, objects and advantages of the present invention more clearly understood. The examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 5, the present invention includes: the annular fastening block 1 and the hot runner plate assembly comprise a front hot runner plate 2, a rear hot runner plate 3, a left hot runner plate 4 and a right hot runner plate 5, wherein the front hot runner plate 2 and the rear hot runner plate 3 are mutually attached to each other along one side of a nozzle and an internal runner, the left hot runner plate 4 and the right hot runner plate 5 are arranged at two ends of the front hot runner plate 2 and the rear hot runner plate 3, and channels inside the left hot runner plate 4 and the right hot runner plate 5 are communicated with the internal runners of the front hot runner plate 2 and the rear hot runner plate 3;
the annular fastening block 1 is sleeved outside the joint of the left hot runner plate 4, the front hot runner plate 2 and the rear hot runner plate 3;
the joint of the right hot runner plate 5, the front hot runner plate 2 and the rear hot runner plate 3 is sleeved with an annular fastening block 1.
In this embodiment, preferably, a plurality of layers of heat insulation gaskets 6 are provided on the upper and lower end surfaces of the hot runner plate assembly.
In this embodiment, preferably, the tops of the front hot runner plate 2 and the rear hot runner plate 3 are symmetrically provided with elongated multi-layer heat insulation gaskets 6 on the areas avoiding the nozzles and the screw holes, and the tops of the left hot runner plate 4 and the right hot runner plate 5 are provided with square multi-layer heat insulation gaskets 6.
In this embodiment, preferably, three multi-layered heat insulation gaskets 6 are provided on the bottom surface of the hot runner plate assembly, and have the same size as the bottoms of the left hot runner plate 4, the right hot runner plate 5, the front hot runner plate 2 and the rear hot runner plate 3, respectively.
By means of the structure, the multi-layer heat insulation gasket with proper size is designed according to the difference of the upper shape and the lower shape of the hot runner plate assembly, and solid contact thermal resistance is generated under the condition that the operation of the whole structure is not affected, so that the purpose of reducing heat transfer is achieved.
In this embodiment, the annular fastening block 1 is preferably provided with pin holes 7, and the pin holes 7 are provided with a pair.
In this embodiment, screw holes are preferably also formed at the top of the left and right hot runner plates 4 and 5 corresponding to the pin holes 7, and the pin holes 7 and screw holes are coaxially formed and fastened through pins.
In this embodiment, it is preferable that the width of the annular fastening block 1 does not exceed the width of the hot runner plate assembly.
By the arrangement of the structure, the pin holes are designed in the annular fastening blocks, so that the hot runner plate can be integrally taken when being required to be maintained, the maintenance time is shortened, and the situation that the hot runner plate is blocked due to dislocation in the use process and cannot be taken out is avoided.
In use, because the whole hot runner is longer, in order to ensure that the magnesium liquid is kept in a solid solution state in the whole hot runner, the whole hot runner plate is required to be heated, in order to avoid heat loss, a plurality of layers of heat insulation gaskets are added on the upper surface and the lower surface of the hot runner plate assembly, solid contact thermal resistance exists between the plurality of layers of plates, heat transfer is not facilitated, the hot runner plate assembly can be kept in a high-temperature state, magnesium particles are kept in a solid solution state in the runner, the occurrence of the situation that the hot runner is blocked due to low temperature of the hot runner plate and unbalanced overall mold temperature is avoided, and the times of replacing or maintaining the hot runner plate can be reduced;
on the other hand, because the whole hot runner plate assembly is separately made into 4 parts due to processing reasons, the problems of matching and assembling among the parts are difficult to realize, a loop-shaped fastening block in a 'back' shape is added among the parts of the hot runner plate at present, the problem that the front direction, the back direction, the upper direction and the lower direction among the parts are not matched well in the assembling process is solved, the disassembly and the assembly can be convenient, the time is saved, and the working efficiency is improved.
The above-described embodiments are merely illustrative of the principles of the present application and their effectiveness, and are not intended to limit the present application. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications and variations which may be accomplished by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the claims of this patent application.
Claims (7)
1. The magnesium alloy semi-solid die casting die is characterized by comprising an annular fastening block (1) and a hot runner plate assembly, wherein the hot runner plate assembly comprises a front hot runner plate (2), a rear hot runner plate (3), a left hot runner plate (4) and a right hot runner plate (5), the front hot runner plate (2) and the rear hot runner plate (3) are mutually attached to each other along one side of a nozzle and an internal runner, the left hot runner plate (4) and the right hot runner plate (5) are arranged at two ends of the front hot runner plate (2) and the rear hot runner plate (3), and channels inside the left hot runner plate (4) and the right hot runner plate (5) are communicated with the front and the rear of the internal runners of the front hot runner plate (2) and the rear hot runner plate (3);
an annular fastening block (1) is sleeved outside the joint of the left hot runner plate (4) and the front hot runner plate (2) and the rear hot runner plate (3);
the annular fastening block (1) is sleeved outside the joint of the right hot runner plate (5) and the front hot runner plate (2) and the rear hot runner plate (3).
2. The magnesium alloy semi-solid state die casting die according to claim 1, wherein: and the upper end face and the lower end face of the hot runner plate assembly are respectively provided with a plurality of layers of heat insulation gaskets (6).
3. The magnesium alloy semi-solid state die casting die according to claim 2, wherein: the top of preceding hot runner board (2) and back hot runner board (3) is provided with rectangular multilayer heat insulating pad (6) on the region of avoiding nozzle and screw symmetry, the top of left hot runner board (4) and right hot runner board (5) is provided with square multilayer heat insulating pad (6).
4. A magnesium alloy semi-solid state die casting mold according to claim 3, wherein: the bottom surface of hot runner plate subassembly is provided with three multilayer heat insulating gasket (6), and is the same with the bottom size of left hot runner plate (4), right hot runner plate (5), preceding hot runner plate (2) and back hot runner plate (3) respectively.
5. The magnesium alloy semi-solid state die casting mold according to claim 4, wherein: the annular fastening block (1) is provided with a pin hole (7), and the pin hole (7) is provided with a pair.
6. The magnesium alloy semi-solid state die casting mold according to claim 5, wherein: screw holes are also formed in the tops of the left hot runner plate (4) and the right hot runner plate (5) corresponding to the pin holes (7), the pin holes (7) and the screw holes are coaxially arranged, and the pin holes and the screw holes penetrate through pins to fasten the pin holes.
7. The magnesium alloy semi-solid state die casting mold according to claim 6, wherein: the width of the annular fastening block (1) does not exceed the width of the hot runner plate assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111429599.7A CN116174684A (en) | 2021-11-29 | 2021-11-29 | Semi-solid die casting die for magnesium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111429599.7A CN116174684A (en) | 2021-11-29 | 2021-11-29 | Semi-solid die casting die for magnesium alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116174684A true CN116174684A (en) | 2023-05-30 |
Family
ID=86440837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111429599.7A Pending CN116174684A (en) | 2021-11-29 | 2021-11-29 | Semi-solid die casting die for magnesium alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116174684A (en) |
-
2021
- 2021-11-29 CN CN202111429599.7A patent/CN116174684A/en active Pending
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