Casting mold for multiple aluminum alloy samples
By designing multiple sample cavities and setting upper and lower horizontal and vertical runners in the aluminum alloy casting mold, the problems of shrinkage porosity and gas porosity in aluminum alloy casting are solved, the casting quality and yield are improved, and the production cost is reduced.
Patent Information
- Application Number
- CN202520338654.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The existing aluminum alloy casting process is prone to shrinkage porosity and gas porosity defects, resulting in low casting yield, material waste and increased production costs.
Design a multi-aluminum alloy sample casting mold, including multiple sample cavities formed between a first template and a second template, and upper and lower horizontal runners and vertical runners set at the top and bottom of the mold cavities. Liquid aluminum alloy in the vertical runner flows evenly into the mold cavity, and feeding is carried out through the riser of the upper horizontal runner to reduce the riser size and prevent the formation of defects.
It improved casting quality and process yield, reduced material waste and production costs, and increased sample preparation efficiency.
Smart Images
Figure CN223848043U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of casting mould design, and specifically relates to a multi-aluminum alloy sample casting mould. BACKGROUND
[0002] Aluminum alloy has good casting performance, corrosion resistance, high specific strength, excellent plasticity and impact toughness and the like, and is widely applied to the manufacturing fields of aerospace, automobiles and the like. Therefore, when designing aluminum alloy, different aluminum alloy compositions are often designed to meet different service performance requirements. This requires that the designed alloy composition be rapidly sampled to prepare aluminum alloy as-cast samples of different specifications, and the rationality of the alloy composition design is fed back through performance testing of different composition samples. Therefore, during aluminum alloy research and development, how to rapidly carry out preparation of aluminum alloy samples is a key to aluminum alloy composition optimization and iteration.
[0003] Nowadays, when aluminum alloy casting is carried out, the aluminum alloy melt needs to be poured into a round or square metal or graphite mould, and the aluminum alloy forming casting can be completed after the raw material is cooled. During the casting process, defects such as shrinkage and pores are formed due to liquid feeding or gas not being able to completely escape, thereby reducing the aluminum alloy casting quality. Therefore, conventional aluminum alloy casting often needs large riser design, which reduces the casting process yield and causes waste of alloy material, low production efficiency and increased production cost due to the coarse structure of the core of the casting. SUMMARY
[0004] Therefore, the utility model provides a multi-aluminum alloy sample casting mould, which can overcome the technical problems in the related art that the multi-aluminum alloy sample casting mould is designed with a large riser to prevent defects such as shrinkage and pores during aluminum alloy forming casting, thereby reducing the casting process yield, causing waste of alloy material and increasing production cost.
[0005] In order to solve the above problems, the utility model provides a multi-aluminum alloy sample casting mould, which comprises a first mould plate and a second mould plate that are oppositely buckled and form at least two sample mould cavities therebetween, and a vertical sprue, a lower horizontal sprue and an upper horizontal sprue are further formed between the first mould plate and the second mould plate, wherein the cavity top region of each sample mould cavity is communicated with the upper horizontal sprue, the cavity bottom region of each sample mould cavity is communicated with the lower horizontal sprue, the vertical sprue is communicated with the lower horizontal sprue, the top opening of the vertical sprue is a sprue cup, and a riser is arranged on the upper horizontal sprue.
[0006] In some embodiments, the vertical sprue is a blind hole structure, and the communication position of the lower horizontal sprue and the vertical sprue is above the hole bottom wall of the blind hole structure; and / or the material of the first mould plate and the second mould plate is copper or graphite.
[0007] In some embodiments, the cross-sectional area of the lower runner is greater than the cross-sectional area of the vertical runner.
[0008] In some embodiments, the cross-sectional area of the lower runner is 1.2 times the cross-sectional area of the vertical runner.
[0009] In some embodiments, the vertical runner and each of the sample cavities extend vertically.
[0010] In some embodiments, each of the sample cavities comprises at least one of a tensile sample cavity and an impact sample cavity.
[0011] In some embodiments, the four corner regions of the first and second molds are respectively provided with positioning pins, the positioning pins penetrating the mold closing surfaces of the first and second molds and the two ends of the positioning pins being respectively located inside the first and second molds.
[0012] In some embodiments, the four corner regions of the first and second molds are respectively provided with a set of clamp assemblies, the clamp assemblies being used to connect the first and second molds together.
[0013] In some embodiments, the clamp assembly comprises a U-shaped fastener and a bolt member threadedly connected to the U-shaped fastener, the free end of the screw rod of the bolt member abutting against the outer side surface of the first or second mold.
[0014] In some embodiments, the head of the bolt member is formed as a cross structure.
[0015] The multi-aluminum alloy sample casting mold has the following beneficial effects:
[0016] By forming a plurality of sample cavities between the first and second molds and respectively providing an upper runner and a lower runner at the top and bottom of each sample cavity, the liquid aluminum alloy poured into the vertical runner can be uniformly poured into each sample cavity through the lower runner and flow out from the top of the upper runner, thereby filling each sample cavity with aluminum alloy liquid, ensuring the casting quality, and since the upper runner is located at the top of each sample cavity and inside the riser, it can play a certain role in the riser and perform a feeding function, thereby allowing the overall size of the riser to be relatively small, which can reduce material waste, improve the casting process yield, and thus reduce production costs to a certain extent. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. The drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be derived from the provided drawings without creative labor.
[0018] Figure 1 is a perspective view of the multi-aluminum alloy sample casting mold in the embodiment of the present application;
[0019] Figure 2 is Figure 1 a top view of the multi-aluminum alloy sample casting mold in
[0020] Figure 3 is Figure 1 a front view of the multi-aluminum alloy sample casting mold in
[0021] The reference signs are:
[0022] 11, first mold plate; 12, second mold plate; 21, vertical gate; 211, gate cup; 22, lower cross gate; 23, upper cross gate; 24, riser; 3, positioning pin; 4, clamp assembly; 41, U-shaped fastener; 42, bolt piece; 421, cross structure; 100, sample mold cavity. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.
[0024] In the description of the present application, it is understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the protection scope of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.
[0025] For purposes of the description hereinafter, spatial relations terms, such as "above", "below", "top", "bottom", "side", "higher", "lower", "upper", "lower", "horizontal", "vertical", "front", "back", "rear", "up", "down", and the like, can be used herein for describing the spatial relationship between one device or feature to another device or feature as illustrated in the figures. It is to be understood that the spatial relations terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is inverted, then a device described as "above" or "up" other devices or structures can be oriented "below" or "down" the other devices or structures. Accordingly, the exemplary terms "above" and "below" can encompass both orientations "above" and "below". The devices can also be oriented in other ways (rotated 90° or at other orientations) and the spatial relationship terms are interpreted accordingly.
[0026] In addition, it should be noted that the use of "first", "second", and the like words to qualify parts, is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the utility model.
[0027] Referring to Figures 1 to 3 As shown, according to the embodiment of the utility model, a multi-aluminum alloy sample casting mold is provided, that is, a casting mold capable of single casting of at least two or at least two kinds of aluminum alloy samples, comprising a first mold plate 11 and a second mold plate 12 that are relatively buckled and form at least two sample mold cavities 100 therebetween, each sample mold cavity 100 can be a plurality of different types of sample mold cavities, such as a tensile sample cavity and an impact sample cavity, or can be the same type of sample mold cavity, the same or different specifications, which can be reasonably configured according to actual needs, the first mold plate 11 and the second mold plate 12 also form a vertical gate 21, a lower horizontal gate 22, and an upper horizontal gate 23, wherein the top region of each sample mold cavity 100 is communicated with the upper horizontal gate 23, and the bottom region of each sample mold cavity 100 is communicated with the lower horizontal gate 22, that is, the upper horizontal gate 23 and the lower horizontal gate 22 are respectively located at the upper and lower end regions of each sample mold cavity 100, the vertical gate 21 is communicated with the lower horizontal gate 22, the top opening of the vertical gate 21 is a gate cup 211, and the upper horizontal gate 23 is provided with a riser 24.
[0028] In the technical solution, a plurality of sample cavities 100 are formed between the first template 11 and the second template 12, and the upper cross runner 23 and the lower cross runner 22 are arranged at the top and bottom of each sample cavity 100 respectively, so that the liquid aluminum alloy poured into the vertical runner 21 can uniformly enter each sample cavity 100 through the lower cross runner 22 and flow out from the riser 24 of the upper cross runner 23 at the top, forming the filling of the aluminum alloy liquid to each sample cavity 100, ensuring the casting quality, and at the same time, the upper cross runner 23 is at the top of each sample cavity 100 and inside the riser 24, which can play a certain role of the riser and has a feeding effect, so that the overall size of the riser 24 can be designed to be relatively small, which can reduce the waste of materials (the larger the riser, the more the waste of materials), improve the casting process yield, and thus reduce the production cost to a certain extent.
[0029] In some embodiments, the vertical runner 21 is a blind hole structure, that is, the bottom thereof is a sealing structure, and the communication position of the lower cross runner 22 and the vertical runner 21 is above the hole bottom wall of the blind hole structure, which is generally 2-3 cm high, so that the liquid droplets generated by the impact of the aluminum alloy liquid poured into the sprue cup 211 of the vertical runner 21 and the bottom wall of the vertical runner 21 can be prevented from splashing into the subsequent lower cross runner 22 and each sample cavity 100, ensuring the final quality of the sample casting (the splashed liquid droplets are prone to condensation and solidification into metal particles).
[0030] In a preferred embodiment, the material of the first template 11 and the second template 12 is copper or graphite, and the copper or graphite used has high thermal conductivity, which can ensure that the aluminum alloy liquid in the mold can be cooled and solidified more quickly, which can significantly improve the sample preparation efficiency.
[0031] In some embodiments, the cross-sectional area of the lower cross runner 22 is greater than the cross-sectional area of the vertical runner 21, and in a specific embodiment, the cross-sectional area of the lower cross runner 22 is 1.2 times the cross-sectional area of the vertical runner 21. It can be understood that, in an embodiment as shown in the drawings, the cross-sectional area of the lower cross runner 22 refers to a vertical plane, and the cross-sectional area of the vertical runner 21 refers to a horizontal plane. Figure 3
[0032] In the technical solution, the cross-sectional area of the lower cross runner 22 is designed to be greater than the cross-sectional area of the vertical runner 21, the flow area of the aluminum alloy liquid during pouring is increased, which can make the aluminum alloy liquid flow smoothly and improve the uniformity of the casting.
[0033] Specifically refer to Figure 3 As shown, the sprue 21 and each of the sample cavities 100 extend vertically along the vertical direction, and each of the sample cavities 100 includes at least one of a tensile sample cavity and an impact sample cavity, as shown in detail in Figure 1 As shown, in this embodiment, there are seven tensile sample cavities, three of which on the left side are larger in size (large-size tensile sample cavities) than the four on the right side (small-size sample cavities), and there are four impact sample cavities. In one embodiment, the large-size tensile sample cavities form tensile samples with a clamping section diameter of 18 mm and a parallel section diameter of 11 mm, and the small-size tensile sample cavities form tensile samples with a clamping section diameter of 7 mm and a parallel section diameter of 4 mm. The impact sample cavities form impact samples with a size of 11x11x55 mm. It can be understood that the sizes of the sample cavities 100 are basically the same as the sizes of the samples to be formed, i.e., the sizes of the samples formed by casting are close to the net-shaped samples, which reduces the amount of cutting work and saves a large amount of metal material, further improving the casting process yield.
[0034] In some embodiments, the four corner regions of the first mold plate 11 and the second mold plate 12 are respectively provided with positioning pins 3 that penetrate the mold closing surfaces of the first mold plate 11 and the second mold plate 12 and have their two ends inside the first mold plate 11 and the second mold plate 12, respectively, so that the relative closing of the sample cavities 100 of the first mold plate 11 and the second mold plate 12 is more accurate when they are buckled, and the relative position is also more stable. It can be understood that the melting point of the aforementioned positioning pins 3 should not be lower than the melting point of the first mold plate 11 and the second mold plate 12.
[0035] In some embodiments, the four corner regions of the first mold plate 11 and the second mold plate 12 are respectively provided with a set of clamp assemblies 4 for buckling and connecting the first mold plate 11 and the second mold plate 12 into one body, so as to ensure that the first mold plate 11 and the second mold plate 12 are stably in the buckled state and that the relative position of the first mold plate 11 and the second mold plate 12 does not deviate due to high-temperature deformation during the casting process.
[0036] In some embodiments, the clamp assembly 4 comprises a U-shaped fastener 41 and a bolt 42 screwed with the U-shaped fastener 41, the U-shaped fastener 41 comprising two parallel sections (not labeled in the figure) and a connecting section (not labeled in the figure) connecting corresponding ends of the two parallel sections, thus forming an integrated structure with an opening, and the free end of the screw rod of the bolt 42 abuts against the outer side of the first mold plate 11 or the second mold plate 12, and in particular, the bolt 42 is screwed with one of the two parallel sections. It can be understood that the inner distance between the two parallel sections of the U-shaped fastener should be slightly greater than the sum of the thicknesses of the first mold plate 11 and the second mold plate 12, so that the first mold plate 11 and the second mold plate 12 can be smoothly accommodated in the clamped state as the basic principle.
[0037] In the technical solution, the U-shaped fastener 41 is arranged at the four corner regions of the first mold plate 11 and the second mold plate 12, so that the four corners of the two mold plates in the clamped state are accommodated and constrained in the opening of the U-shaped fastener 41, and the reliable clamping of the two mold plates is finally achieved by screwing the bolt 42, which is simple in structure and easy to implement. In order to facilitate the screwing of the bolt 42 by the operator, the head of the bolt 42 is formed as a cross structure 421.
[0038] It can be easily understood by those skilled in the art that the advantageous technical features of the above-mentioned modes can be freely combined and superimposed without conflict.
[0039] The above description is only the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above description is only the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A multi-aluminum alloy test specimen casting mold characterized by, The application discloses a first mold plate (11) and a second mold plate (12) which are relatively buckled and form at least two sample mold cavities (100) therebetween, and a vertical gate (21), a lower cross gate (22) and an upper cross gate (23) are further formed between the first mold plate (11) and the second mold plate (12), wherein a cavity top region of each sample mold cavity (100) is communicated with the upper cross gate (23), a cavity bottom region of each sample mold cavity (100) is communicated with the lower cross gate (22), the vertical gate (21) is communicated with the lower cross gate (22), and a top opening of the vertical gate (21) is a gate cup (211), and a riser (24) is arranged on the upper cross gate (23).
2. The multi-aluminum alloy test specimen casting mold of claim 1, wherein, The vertical gate (21) is a blind hole structure, and the communication position of the lower cross gate (22) and the vertical gate (21) is above a hole bottom wall of the blind hole structure; and / or the material of the first mold plate (11) and the second mold plate (12) is copper or graphite.
3. The multi-aluminum alloy test specimen casting mold of claim 2, wherein, The cross-sectional area of the lower cross gate (22) is greater than the cross-sectional area of the vertical gate (21).
4. The multi-aluminum alloy test specimen casting mold of claim 3, wherein, The cross-sectional area of the lower cross gate (22) is 1.2 times the cross-sectional area of the vertical gate (21).
5. The multi-aluminum alloy test specimen casting mold of claim 1, wherein, The vertical gate (21) and each sample mold cavity (100) extend in a vertical direction.
6. The multi-aluminum alloy test specimen casting mold of claim 1, wherein, Each sample mold cavity (100) comprises at least one of a tensile sample cavity and an impact sample cavity.
7. The multi-aluminum alloy test specimen casting mold of claim 1, wherein, The four corner regions of the first mold plate (11) and the second mold plate (12) are respectively provided with positioning pins (3) which penetrate the mold closing surfaces of the first mold plate (11) and the second mold plate (12) and the two ends of the positioning pins (3) are respectively located in the first mold plate (11) and the second mold plate (12).
8. The multi-aluminum alloy test specimen casting mold of claim 1, wherein, The four corner regions of the first mold plate (11) and the second mold plate (12) are respectively provided with a group of clamp assemblies (4) which are used for buckling and connecting the first mold plate (11) and the second mold plate (12) into one body.
9. The multi-aluminum alloy test specimen casting mold of claim 8, wherein, The clamp assembly (4) comprises a U-shaped fastener (41) and a bolt member (42) which is threadedly connected with the U-shaped fastener (41), and the free end of the screw rod of the bolt member (42) abuts against the outer side surface of the first mold plate (11) or the second mold plate (12).
10. The multi-aluminum alloy test specimen casting mold of claim 9, wherein, The head of the bolt member (42) is formed in a cross structure (421).