CN115555523A - Casting fluidity test mold - Google Patents
Casting fluidity test mold Download PDFInfo
- Publication number
- CN115555523A CN115555523A CN202211303497.5A CN202211303497A CN115555523A CN 115555523 A CN115555523 A CN 115555523A CN 202211303497 A CN202211303497 A CN 202211303497A CN 115555523 A CN115555523 A CN 115555523A
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- China
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- template
- mold
- cavity
- test
- transverse flow
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/068—Semi-permanent moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
Abstract
The invention provides a casting fluidity test mold, which comprises: a transverse flow passage; the main pouring gate is arranged above the transverse flow passage; the first template is arranged above the transverse flow channel; the second template is arranged above the transverse flow channel, the shape of a cavity of the second template is the same as that of the first template, and the sectional dimension of the cavity of the second template is smaller than that of the cavity of the first template; the third template is arranged above the transverse flow channel, and the shape of a cavity of the third template is different from that of the cavity of the first template; the main pouring gate, the first template, the second template and the third template are sequentially arranged according to a preset sequence, and a die cavity is formed between the main pouring gate, the first template, the second template and the third template and the transverse flow channel. According to the invention, through the design of the cavities of the first template, the second template and the third template, the casting fluidity of the metal melt in the cavities of different shapes can be tested.
Description
Technical Field
The invention relates to the technical field of casting molds, in particular to a casting fluidity testing mold.
Background
The mold cavity of the existing casting fluidity test mold is fixed, which is suitable for conventional metal fluidity test, but for the casting fluidity analysis scene of large thin-wall castings for aerospace engines, the time for manufacturing the integral mold is very long, and the mold cost is high. Such a mould has the following disadvantages: 1. for a scene needing to test the fluidity in various die cavities at the same time, the manufacturing of the original die is time-consuming; 2. for a scene needing to test the fluidity in a special-shaped die cavity, the original method needs to specially manufacture an integral die and cannot realize the universality of accessories such as a die pouring channel, a flow channel and the like, so the cost of the die is higher; 3. after the mould is scrapped in the original method, the mould can not be recycled, which is a waste of materials.
Through search, the following results are found:
the application publication number is CN201310346264.8, which discloses a metal mold for testing the casting fluidity of non-ferrous alloy, mainly comprising a metal mold upper mold and a metal mold lower mold; the metal upper die is divided into a left half die and a right half die and is connected with a slideway of the metal lower die through an insert block guide rail; the insert of the slow flow block is arranged between the left half die and the right half die, and the sample ejection plug block is positioned below the sprue pit of the metal lower die. The molten metal flows through the flow slowing block through the pouring cup, flows into the sprue and the pouring gate pit after controlling the speed through the flow slowing hole, and then flows into the spiral cavity to form a spiral sample. The test mould is provided with a through hole for heating and temperature measurement, and a heating rod can be used for heating the mould and measuring the temperature by a thermocouple, so that the fluidity of alloy casting under different mould temperature conditions can be conveniently tested; the invention can test non-ferrous alloy such as magnesium, aluminum and the like, has simple die structure, convenient operation and obvious test effect, and can realize the test of alloy fluidity under the conditions of temperature control and speed control. However, the mold still has the following problems: the method is only suitable for the scene of single-shape die cavity fluidity test and is not suitable for high-melting-point metal such as high-temperature alloy and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a casting fluidity test die.
According to an aspect of the present invention, there is provided a casting fluidity test mold, comprising:
a transverse flow passage;
the main pouring gate is arranged above the transverse flow passage;
the first template is arranged above the transverse flow channel;
the second template is arranged above the transverse flow channel, the shape of a cavity of the second template is the same as that of the first template, and the sectional dimension of the cavity of the second template is smaller than that of the cavity of the first template;
the third template is arranged above the transverse flow channel, and the shape of a cavity of the third template is different from that of the cavity of the first template;
the main pouring gate, the first template, the second template and the third template are sequentially arranged according to a preset sequence to form a die cavity between the main pouring gate, the first template, the second template and the third template and the transverse flow channel.
Further, the dimensions of the main runner, the first die plate, the second die plate and the third die plate are determined according to the dimensions of the mold cavity required to test the casting fluidity of the metal melt.
Further, the shapes of the inner cavities of the main runner, the first die plate, the second die plate and the third die plate, and the mounting sequence and the number of the mounting on the cross runners are determined according to the shape of the cavity required for testing the casting fluidity of the molten metal.
Furthermore, the mould also comprises a cover plate for covering the transverse flow passage, and the cover plate is arranged on the transverse flow passage.
Furthermore, bottom grooves are formed in the bottoms of the two ends of the structure formed by the main pouring gate, the first template, the second template, the third template and the cover plate after the main pouring gate, the first template, the second template, the third template and the cover plate are sequentially arranged according to a preset sequence, surface grooves are formed in the transverse flow channel, and the bottom grooves are matched with the surface grooves.
Further, the total length of bottom grooves at the bottoms of the main pouring channel, the first template, the second template, the third template and the cover plate is equal to the length of a surface groove of the transverse flow channel, so that the mold cavity is closed and metal melt does not overflow.
Furthermore, the positions of the bottom groove and the surface groove which are matched are wrapped by refractory materials.
Further, the main pouring gate is of a pouring gate and riser integrated structure so as to realize metal melt pouring and feeding.
Further, the material of the die is determined according to the type of the test metal.
Further, the mold is made of a ceramic material to test the casting fluidity of the high melting point metal; alternatively, the mold is manufactured using a metal material or a graphite material to test the casting fluidity of the low melting point metal.
Compared with the prior art, the invention has the following beneficial effects:
1. the casting fluidity testing mold can be used for testing the casting fluidity of metal melt in mold cavities with different shapes and sizes through the design of the mold cavities of the first mold plate, the second mold plate and the third mold plate.
2. The casting fluidity test mold has the advantages that the time is saved by replacing the mold cavity and the test efficiency is high due to the limit matching of the grooves between the mold plate and the transverse flow channel.
3. According to the casting fluidity test mold, after the mold is scrapped, intact mold accessories can be recycled, so that the material waste can be reduced.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a three-dimensional schematic view of a casting fluidity test mold according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a casting fluidity test mold in an embodiment of the present invention;
FIG. 3 is a schematic top view of a casting flowability test mold in accordance with an embodiment of the present invention;
FIG. 4 is a three-dimensional schematic view of a cross flow channel of a casting fluidity test mold according to an embodiment of the present invention;
FIG. 5 is a three-dimensional schematic view of a mold plate and a cover plate of a casting flowability test mold according to an embodiment of the present invention;
in the figure: 1 is a transverse flow passage, 2 is a main pouring channel, 3 is a first template, 4 is a second template, 5 is a third template, and 6 is a cover plate.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the invention.
The embodiment of the invention provides a casting fluidity test mold, and referring to fig. 1-3, the mold comprises a transverse flow passage 1, a main pouring channel 2, a first mold plate 3, a second mold plate 4 and a third mold plate 5, wherein: the transverse runner 1 is used for introducing molten metal into the cavities of the templates so as to connect the main runner 2 with the cavities of the templates; the main pouring gate 2 is arranged above the transverse flow passage 1, the main pouring gate 2 is used as a pouring passage of the alloy, and the flow guide of the alloy in the pouring process is realized through the transverse flow passage 1 and the main pouring gate 2; the first template 3 is arranged above the transverse flow passage 1; the second template 4 is arranged above the transverse flow channel 1, the shape of the cavity of the second template 4 is the same as that of the first template 3, and the sectional dimension of the cavity of the second template 4 is smaller than that of the cavity of the first template 3, so that the casting fluidity of the metal melt in the cavities of the same shape and different sizes can be tested; the third mold plate 5 is installed above the cross runner 1, and the shape of the cavity of the third mold plate 5 is different from the shape of the cavity of the first mold plate 3, for example, the first mold plate 3 and the second mold plate 4 have rectangular cavities, the first mold plate 3 is a thick-walled mold plate, the second mold plate 4 is a thin-walled mold plate, and the third mold plate 5 has a cylindrical cavity, although the first mold plate 3, the second mold plate 4, and the third mold plate 5 may have other shapes, and each mold plate may be replaced; the main pouring gate 2, the first template 3, the second template 4 and the third template 5 are sequentially arranged according to a preset sequence to form a die cavity with the transverse flow passage 1; the design of the cavities of the first template 3, the second template 4 and the third template 5 can test the casting fluidity of the metal melt in the cavities with different shapes and sizes.
The larger the size of the main pouring gate 2 is, the faster the pouring speed is, but the more the metal liquid is wasted; the smaller the size of the main runner 2, the longer the pouring time, which results in premature solidification of the molten metal without filling the die plates, the dimensions of the main runner 2, the first die plate 3, the second die plate 4 and the third die plate 5 being determined according to the dimensions of the cavity required to test the casting fluidity of the molten metal. The dimensions of the main runner 2, the first template 3, the second template 4, and the third template 5 are configured to be changeable by replacing the different-sized runner 1, the main runner 2, the first template 3, the second template 4, the third template 5, and the like, to test the casting fluidity of the molten metal in the different-sized mold cavities.
In some embodiments, the shapes of the inner cavities of the main runner 2, the first pattern plate 3, the second pattern plate 4 and the third pattern plate 5, and the installation order (preset order) and the number of installations on the cross runner 1 are determined according to the shape of the cavity required for testing the casting fluidity of the metal melt. The larger the volume of the die plate, the slower the filling, and the higher the solidification rate of the metal, so that the die plate with the larger volume is arranged close to the main pouring channel 2 to avoid the phenomenon that the filling is not full due to too fast cooling. The installation sequence, the installation number and the inner cavity shape of the main pouring channel 2, the first template 3, the second template 4 and the third template 5 on the transverse flow channel 1 are all constructed to be changeable, and the casting fluidity of the metal melt in the mold cavities with different shapes can be tested by replacing the transverse flow channel 1, the main pouring channel 2, the first template 3, the second template 4, the third template 5 and the like.
In some embodiments, the mold further comprises a cover plate 6, the cover plate 6 is mounted on the cross runner 1, and the cover plate 6 is used for covering the cross runner 1.
Referring to fig. 4, the transverse flow channel 1 is a straight runner with an opening at the top, in order to realize that the main runner 2, the first template 3, the second template 4, the third template 5, the cover plate 6 and the like are matched with the transverse flow channel 1 to form a mold cavity, bottom grooves are arranged at the bottoms of two ends of a structure formed by the main runner 2, the first template 3, the second template 4, the third template 5 and the cover plate 6 which are sequentially arranged in a preset sequence, as shown in fig. 5, bottom grooves are arranged at the bottoms of two ends of a structure formed by the main runner 2, the first template 3, the second template 4, the third template 5 and the cover plate 6 which are sequentially and adjacently arranged, namely, the bottom grooves are structures of concave parts on the wall surface in the width direction of the mold, and the bottom grooves are concave structures at the bottoms of side walls at the end parts of the main runner 2 and the cover plate 6; be equipped with the surface recess on the cross runner 1, the surface recess forms the integral opening on the cross runner 1, and the bottom recess cooperatees with the surface recess, as shown in fig. 4, the surface recess is the structure of depressed part on the length direction wall of cross runner 1, and the bottom recess blocks mutually with the surface recess together, through bottom recess and surface recess, can inject the position of each template, avoids the template to slide and leaves the hole and lead to the metal liquid excessive. Moreover, the template is fixed on the transverse flow channel 1 in a groove matching mode, so that the template is convenient to exchange, and the time for replacing the template can be saved. The total length of the bottom grooves at the bottoms of the main pouring gate 2, the first template 3, the second template 4, the third template 5 and the cover plate 6 is equal to the length of the surface groove (top opening) of the transverse flow passage 1, namely the total length of the bottom grooves after the main pouring gate 2, the first template 3, the second template 4, the third template 5 and the cover plate 6 are adjacently arranged is equal to the length of the surface groove of the transverse flow passage 1, so that all the bottom surfaces and the side surfaces of the whole die are in a closed state, and the die cavity is closed to prevent metal melt from overflowing.
In some embodiments, the positions where the bottom groove and the surface groove are matched are all wrapped by a refractory material for heat preservation, so that a large amount of casting defects caused by rapid cooling of molten metal are avoided, and the refractory material can be asbestos, so that the main runner 2, the first template 3, the second template 4, the third template 5, the cover plate 6 and the like are matched with the transverse runner 1 to form a closed mold cavity with heat preservation performance. Of course, in some other embodiments, other types of matching manners may also be adopted, and the embodiment of the present invention is not particularly limited thereto.
In some embodiments, the main pouring gate 2 is a gate and riser integrated structure, and the number of the main pouring gate 2 can be one or more, so as to realize the pouring and feeding of the metal melt.
The material of the die is determined according to the type of the test metal. In some embodiments, the mold is fabricated using a ceramic material, such as an oxide ceramic, to test the casting fluidity of high melting point metals, such as superalloys, stainless steel, titanium alloys, steel, and the like. In order to achieve the purpose of testing the casting fluidity of metals and alloys with different melting points, the materials of the transverse flow channel 1, the main pouring gate 2, the first template 3, the second template 4, the third template 5, the cover plate 6 and the like can be changed, in some optional embodiments, the mold is made of metal materials such as steel and the like or graphite materials so as to test the casting fluidity of low-melting-point metals such as aluminum alloy and magnesium alloy, and the mold is wide in applicability. In other embodiments, other types of mold materials may be used, as long as the same function as in the embodiments of the present invention is achieved.
In the above embodiment, the main runner 2, the first mold plate 3, the second mold plate 4, the third mold plate 5, etc. are installed along the length direction of the cross runner 1, and the installation sequence, the installation number, the cavity shape, etc. are variable, so as to achieve the purpose of testing the casting fluidity of the metal melt in the mold cavities of different shapes, and the total length of the bottom grooves after adjacent arrangement is equal to the length of the top opening of the cross runner 1, so as to achieve the purposes of closing the mold cavity and preventing the metal melt from overflowing; the main pouring gate 2 integrates a pouring gate and a riser so as to achieve the purposes of metal melt pouring and feeding; in the embodiment of the invention, the casting fluidity of the metal melt in the die cavities with different shapes and sizes can be tested by replacing the transverse runner 1, the main runner 2, the first die plate 3, the second die plate 4, the third die plate 5 and the like.
The above embodiment of the invention has the following beneficial effects: according to the casting fluidity testing mold disclosed by the embodiment of the invention, through the cavity design of the first template, the second template and the third template, and the parts such as the transverse flow channel, the main pouring channel, the first template, the second template and the third template can be replaced, so that the casting fluidity testing mold can be suitable for testing the casting fluidity of different metals and alloys in the cavities with different shapes, the time is saved by replacing the cavities, and the testing efficiency can be improved. In the scene of the steel mould, after the mould is scrapped, intact mould accessories can be recycled, so that the material waste can be reduced, and the mould cost and the mould material can be saved.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The above-described preferred features may be used in any combination without conflict with each other.
Claims (10)
1. A casting fluidity test mold, characterized by comprising:
a transverse flow passage;
the main pouring gate is arranged above the transverse flow passage;
the first template is arranged above the transverse flow channel;
the second template is arranged above the transverse flow channel, the shape of a cavity of the second template is the same as that of the first template, and the sectional dimension of the cavity of the second template is smaller than that of the cavity of the first template;
the third template is arranged above the transverse flow channel, and the shape of a cavity of the third template is different from that of the cavity of the first template; the main pouring gate, the first template, the second template and the third template are sequentially arranged according to a preset sequence, and a die cavity is formed between the main pouring gate, the first template, the second template and the third template and the transverse flow channel.
2. The cast fluidity testing mold according to claim 1, wherein the size of the main runner, the first template, the second template and the third template is determined according to the size of the cavity required to test the cast fluidity of the metal melt.
3. The casting fluidity testing mold according to claim 1, wherein the shape of the inner cavities of the main runner, the first pattern plate, the second pattern plate and the third pattern plate, and the order and number of the installations on the cross runners are determined according to the shape of the cavities required for testing the casting fluidity of the metal melt.
4. The casting fluidity test mold according to claim 1, further comprising a cover plate for covering the cross flow channel, the cover plate being mounted on the cross flow channel.
5. The casting fluidity testing mold according to claim 4, wherein bottom grooves are formed at the bottoms of the two ends of the structure formed by the main runner, the first template, the second template, the third template and the cover plate which are sequentially arranged according to a preset sequence, surface grooves are formed on the cross runner, and the bottom grooves are matched with the surface grooves.
6. The casting fluidity testing mold according to claim 5, wherein the total length of the bottom grooves of the bottoms of the main runner, the first template, the second template, the third template and the cover plate is equal to the length of the surface grooves of the cross runners, so as to close the mold cavity without overflowing the molten metal.
7. The cast flowability test mold of claim 5, wherein the mating locations of the bottom recess and the surface recess are both encapsulated with a refractory material.
8. The cast flowability test mold according to claim 1, wherein the main runner is a gate and riser integrated structure to achieve metal melt pouring and feeding.
9. The cast flowability test die as claimed in claim 1, wherein the material of the die is determined according to the kind of test metal.
10. The casting fluidity testing mold according to claim 9, wherein the mold is made of a ceramic material to test the casting fluidity of the high melting point metal; alternatively, the mold is manufactured using a metal material or a graphite material to test the casting fluidity of the low melting point metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211303497.5A CN115555523A (en) | 2022-10-24 | 2022-10-24 | Casting fluidity test mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211303497.5A CN115555523A (en) | 2022-10-24 | 2022-10-24 | Casting fluidity test mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115555523A true CN115555523A (en) | 2023-01-03 |
Family
ID=84746768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211303497.5A Pending CN115555523A (en) | 2022-10-24 | 2022-10-24 | Casting fluidity test mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115555523A (en) |
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2022
- 2022-10-24 CN CN202211303497.5A patent/CN115555523A/en active Pending
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