CN215467928U - Die for preparing aluminum alloy tensile sample - Google Patents
Die for preparing aluminum alloy tensile sample Download PDFInfo
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- CN215467928U CN215467928U CN202120687279.0U CN202120687279U CN215467928U CN 215467928 U CN215467928 U CN 215467928U CN 202120687279 U CN202120687279 U CN 202120687279U CN 215467928 U CN215467928 U CN 215467928U
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Abstract
The utility model discloses a die for preparing an aluminum alloy tensile sample, which comprises an upper die and a lower die, wherein an upper die cavity is formed in the bottom surface of the upper die, a lower die cavity is formed in the top surface of the lower die, the upper die cavity and the lower die cavity are assembled to form a die cavity, two ends of the die cavity are respectively communicated with two casting channels, the two casting channels are symmetrically arranged, a heat conduction sleeve is sleeved in the die cavity, and the heat conduction sleeve is of a split structure. The utility model can forcibly change the solidification sequence of the sample to achieve the purpose of riser feeding.
Description
Technical Field
The utility model relates to the field of production and manufacturing of aluminum alloy tensile samples, in particular to a die for manufacturing aluminum alloy tensile samples.
Background
The aluminum alloy tensile sample is generally cast by a special die, a test bar blank is cast by a die for processing the aluminum alloy tensile sample, and then turning is carried out to manufacture the tensile test bar meeting the GB/T1173-2013 standard requirement. The test bar blank is generally made of hypoeutectic modified alloy, however, the crystallization range of the hypoeutectic modified alloy is wide (557-613 ℃), and in addition, the fluidity is reduced after modification, so that the feeding capacity of the alloy is poor during casting, and the actual production shows that the sample forming rate is low, and the mechanical property cannot meet the requirements, so that the re-sampling detection is caused, and the repeated work is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a die for preparing an aluminum alloy tensile sample, which aims to solve the problems in the prior art, effectively improve the forming rate of the sample and obviously improve the shrinkage porosity phenomenon.
In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a die for preparing an aluminum alloy tensile sample, which comprises an upper die and a lower die, wherein an upper die cavity is formed in the bottom surface of the upper die, a lower die cavity is formed in the top surface of the lower die, the upper die cavity and the lower die cavity are assembled to form a die cavity, two ends of the die cavity are respectively communicated with two casting channels, the two casting channels are symmetrically arranged, any one casting channel is communicated with a casting opening, the other casting channel is communicated with a riser, the casting opening and the riser are communicated with the outside, a heat conduction sleeve is sleeved in the die cavity, and the heat conduction sleeve is of a split structure.
Preferably, the heat conducting sleeve is composed of two identical semicircular sleeves, any one semicircular sleeve is fixed in the upper cavity, and the other semicircular sleeve is fixed in the lower cavity.
Preferably, the heat conducting sleeve is a copper sleeve.
Preferably, the side wall of the semicircular sleeve is arranged to be in a step shape, the step on the side wall of the semicircular sleeve takes the central position of the side wall of the semicircular sleeve as the highest point, and the height of the step decreases towards the two ends of the semicircular sleeve in a step shape.
Preferably, the end face of each step of the side wall of the semicircular sleeve is respectively connected with a heating plate in a contact manner, and the heating plates are embedded on the bottom surface of the lower cavity.
Preferably, a cooling water pipe penetrates through the side wall of the lower die from the outside inwards, a plurality of U-shaped pipes are arranged on the cooling water pipe at intervals in sequence, two pipe openings of the U-shaped pipes are communicated with the cooling water pipe, and the end face, far away from the cooling water pipe, of each U-shaped pipe extends out of the top face of the lower die and is in contact connection with the stepped end face of the side wall of the semicircular sleeve.
The utility model discloses the following technical effects: the utility model adopts a split type heat conduction sleeve to be fixed in a cavity, alloy liquid is poured into a casting opening after the die is closed, so that the alloy liquid enters the cavity along a casting channel, the heat of the alloy liquid at the cavity part can be quickly dissipated by utilizing the design of the heat conduction sleeve, the alloy liquid can be firstly solidified, namely, a sample part is firstly solidified, and the alloy liquid in the casting channel is then solidified, so that the sample in the cavity can be fed through a riser under the condition that the alloy liquid in the casting channel is not solidified.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a sectional view of a die for producing an aluminum alloy tensile specimen in example 1;
FIG. 2 is a sectional view of a die for producing an aluminum alloy tensile specimen in example 2;
FIG. 3 is a side view of a thermally conductive sleeve of the present invention;
the casting mold comprises an upper mold 1, a lower mold 2, a cavity 3, a casting channel 4, a casting opening 5, a semicircular sleeve 6, a step 7, a heating plate 8, a cooling water pipe 9, a U-shaped pipe 10 and a riser 11.
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.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1
Referring to fig. 1 and 3, the utility model provides a mold for preparing an aluminum alloy tensile sample, which comprises an upper mold 1 and a lower mold 2, wherein an upper cavity is formed in the bottom surface of the upper mold 1, a lower cavity is formed in the top surface of the lower mold 2, a cavity 3 is formed after the upper cavity and the lower cavity are assembled, two ends of the cavity 3 are respectively communicated with two casting channels 4, the two casting channels 4 are symmetrically arranged, any one casting channel 4 is communicated with a casting opening 5, the other casting channel 4 is communicated with a riser 11, the casting opening 5 and the riser 11 are communicated with the outside, a heat conduction sleeve is sleeved in the cavity 3, and the heat conduction sleeve is of a split structure. In this embodiment, the test bar is made of hypoeutectic metamorphic alloy.
The mould adopts an opening-closing type mould of an upper mould 1 and a lower mould 2, mould steel with proper size is selected to be processed into the overall dimension of the mould, then a groove with certain depth is processed inside the mould steel by a milling machine, the length is the length of a test bar, the width is slightly larger than the maximum diameter of the test bar, and the depth is slightly larger than the maximum radius of the test bar. And then processing a split type heat conduction sleeve with a corresponding size and embedding the split type heat conduction sleeve in the groove to obtain a cavity 3 of the die, wherein the heat conduction sleeve is a copper sleeve, and the heat conduction of different metals is utilized, so that the heat conduction of the copper sleeve is stronger than that of die steel, therefore, the alloy liquid at the position of the copper sleeve is firstly solidified, the alloy liquid in the casting channel 4 is then solidified, the solidification sequence of the sample is forcibly changed, and the purpose of feeding a riser 11 is achieved.
According to the further optimized scheme, the heat conduction sleeve is composed of two identical semicircular sleeves 6, any one semicircular sleeve 6 is fixed in the upper cavity, the other semicircular sleeve 6 is fixed in the lower cavity, and after the upper die 1 and the lower die 2 are assembled, the two semicircular sleeves 6 are buckled to form the heat conduction sleeve.
According to the further optimized scheme, the side wall of the semicircular sleeve 6 is in a step shape, the step 7 on the side wall of the semicircular sleeve 6 takes the center position of the side wall of the semicircular sleeve 6 as the highest point, the height of the step is gradually reduced towards the two ends of the semicircular sleeve 6 in the step shape, the side wall of the stepped semicircular sleeve 6 is arranged, the wall thickness of the center part of the stepped semicircular sleeve is the thickest, the heat conduction efficiency is the highest, the center part can be solidified firstly, and then the solidification is carried out towards the two ends step by step, so that the feeding process is carried out from inside to outside, and the forming rate of a sample is improved.
Further optimization scheme, it is connected with hot plate 8, a plurality of to contact respectively on the terminal surface of every ladder 7 of 6 lateral walls of semi-circular sleeve hot plate 8 inlays to be established on the bottom surface of die cavity down, hot plate 8 and external controller electric connection, specific control mode is prior art, no longer gives unnecessary details, if be applicable to the test rod of other alloy models with this mould, should debug during using this mould, become by the casting of above-mentioned method in the mould, the shrinkage pool defect on its surface is observed to the test rod that obtains, hot plate 8 that corresponds the position in die cavity 3 improves heating temperature, make this position reduce the solidification rate, can correspond and carry out the feeding, the back is accomplished in the adjustment, can improve the sample shaping rate.
Example 2
Referring to fig. 2, the difference from the above embodiment 1 is that a cooling water pipe 9 penetrates through the side wall of the lower mold 2 from the outside inwards, a plurality of U-shaped pipes 10 are arranged on the cooling water pipe 9 at intervals in sequence, two pipe orifices of the U-shaped pipes 10 are communicated with the cooling water pipe 9, an electromagnetic valve (not shown) is arranged at the pipe orifice of each U-shaped pipe 10, the end surface of the U-shaped pipe 10 far away from the cooling water pipe 9 extends out of the top surface of the lower mold 2 and is in contact connection with the end surface of the step 7 on the side wall of the semicircular sleeve 6, cooling water is introduced into the cooling water pipe 9, the end surface of each step 7 can be cooled circularly, the solidification rate is improved, the mold is mainly suitable for casting and molding of samples of other alloy types, the mold is debugged when used, the test bar obtained by the above method is cast and molded in the mold, and the shrinkage pool defect on the surface is observed, the U-shaped pipe 10 at the corresponding position in the cavity 3 is closed, so that the solidification speed at the position is reduced, corresponding feeding can be performed, and the sample forming rate can be improved after the adjustment is finished.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (6)
1. The utility model provides a prepare mould of aluminum alloy tensile sample, includes mould (1) and lower mould (2), last die cavity has been seted up on the bottom surface of mould (1), lower die cavity has been seted up on the top surface of lower mould (2), it forms die cavity (3) its characterized in that with lower die cavity compound die to go up the die cavity: the two ends of the cavity (3) are respectively communicated with a casting channel (4), the two casting channels (4) are symmetrically arranged, the casting channel (4) is communicated with a casting opening (5), the other casting channel (4) is communicated with a riser (11), the casting opening (5) and the riser (11) are communicated with the outside, a heat conduction sleeve is sleeved in the cavity (3), and the heat conduction sleeve is of a split structure.
2. The die for preparing the aluminum alloy tensile sample according to claim 1, wherein: the heat conduction sleeve is composed of two identical semicircular sleeves (6), any one semicircular sleeve (6) is fixed in the upper cavity, and the other semicircular sleeve (6) is fixed in the lower cavity.
3. The die for preparing the aluminum alloy tensile sample according to claim 1, wherein: the heat conducting sleeve is a copper sleeve.
4. The die for preparing the aluminum alloy tensile sample according to claim 2, wherein: the side wall of the semicircular sleeve (6) is in a step shape, the steps (7) on the side wall of the semicircular sleeve (6) take the central position of the side wall of the semicircular sleeve (6) as the highest point, and the height of the steps decreases towards the two ends of the semicircular sleeve (6) in a step shape.
5. The die for preparing the aluminum alloy tensile sample according to claim 4, wherein: the end face of each step (7) on the side wall of the semicircular sleeve (6) is respectively connected with a heating plate (8) in a contact mode, and the heating plates (8) are embedded on the bottom face of the lower cavity.
6. The die for preparing the aluminum alloy tensile sample according to claim 4, wherein: the cooling water pipe (9) is arranged on the side wall of the lower die (2) in a penetrating mode from the outside to the inside, a plurality of U-shaped pipes (10) which are arranged at intervals in sequence are arranged on the cooling water pipe (9), two pipe openings of the U-shaped pipes (10) are communicated with the cooling water pipe (9), the U-shaped pipes (10) are far away from the end face of the cooling water pipe (9) and extend out of the top face of the lower die (2) and are connected with the end face of a ladder (7) of the side wall of the semicircular sleeve (6) in a contacting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120687279.0U CN215467928U (en) | 2021-04-01 | 2021-04-01 | Die for preparing aluminum alloy tensile sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120687279.0U CN215467928U (en) | 2021-04-01 | 2021-04-01 | Die for preparing aluminum alloy tensile sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215467928U true CN215467928U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120687279.0U Active CN215467928U (en) | 2021-04-01 | 2021-04-01 | Die for preparing aluminum alloy tensile sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215467928U (en) |
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2021
- 2021-04-01 CN CN202120687279.0U patent/CN215467928U/en active Active
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