CN209424499U - A kind of thin-section casting mold - Google Patents
A kind of thin-section casting mold Download PDFInfo
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- CN209424499U CN209424499U CN201822150163.4U CN201822150163U CN209424499U CN 209424499 U CN209424499 U CN 209424499U CN 201822150163 U CN201822150163 U CN 201822150163U CN 209424499 U CN209424499 U CN 209424499U
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- thin
- aluminium alloy
- section casting
- chill part
- chill
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Abstract
The utility model discloses a kind of thin-section casting molds, including metal outer mold and aluminium alloy chill part, the metal outer mold include upper die and lower die, and the lower surface of the upper mold is provided with the upper cavity being recessed upwards；The upper surface of the lower die is provided with the lower mode cavity to lower recess；The upper mould cover closes in the lower die, shape forming cavity after the upper cavity is connected with the lower mode cavity；The type of the metal outer mold is intracavitary to be provided with chill part mounting groove compatible with the aluminium alloy chill part；The aluminium alloy chill part is arranged in the chill part mounting groove；The isolated thermal center of the aluminium alloy chill part and the thin-section casting mutually agrees with.The thin-section casting mold of the utility model can carry out Quench to heat energy-saving position by chill, solidify the thermal center in advance, avoid the occurrence of shrinkage defect, to obtain castings.
Description
Technical field
The utility model relates to a kind of thin-section casting molds.
Background technique
Currently, for not being available vertical riser feeding, and thermal center part by thin wall component that sand core part is formed and
Speech, its isolated heat energy-saving position is easy to appear shrinkage defect in casting process, and therefore, it is difficult to obtain castings.
Referring to Fig. 1, for example: the 139 type pump housing, 1 ' is the critical component in engineering machinery, weight 2.561Kg, and material is
AlSi9Cu3, wall thickness 6mm, there is Φ 15mm boss at one in inner cavity.The boss can not take vertical riser to mend in casting process
Contracting and cooling water Quench (the relatively thin water cooling temperature of wall thickness is difficult to control), causing the boss to generate shrinkage defect leads to casting bolt hole
Rotten tooth.From sectional view, one on 1 ' part of the pump housing at isolate thick big 11 ' of thermal center, wall thickness and peripheral part wall thickness difference
Larger, 12 ' of thin-walled portion first solidifies when casting, solidifies after 11 ' thickness major part of thermal center, and 11 ' of thermal center then solidified is thick most of
Because of volume contraction and the molten aluminum that do not supplement very much is obtained, therefore the thick big part of thermal center just will appear shrinkage defect.
Therefore, partial isolated spot shrinkage how is prevented, obtaining qualified thin-section casting is that the applicant is dedicated to solving
The problem of.Aluminium alloy chill is preferable compared to cast iron heat-conduction-type, can increase the heat transfer of isolated thermal center by aluminium alloy chill
Property obtain qualified casting.
Utility model content
The purpose of the utility model is to overcome the defects of the prior art, provide a kind of thin-section casting mold, can be by cold
Iron carries out Quench to heat energy-saving position, solidifies the thermal center in advance, avoids the occurrence of shrinkage defect, to obtain castings.
Realize above-mentioned purpose technical solution be: a kind of thin-section casting mold, thin-section casting include thin-walled portion and and its
Connected isolated thermal center, the thin-section casting mold include metal outer mold and aluminium alloy chill part, in which:
The metal outer mold includes upper die and lower die, and the lower surface of the upper mold is provided with the upper cavity being recessed upwards；Institute
The upper surface for stating lower die is provided with lower mode cavity to lower recess；The upper mould cover closes the upper cavity and institute in the lower die
State shape forming cavity after lower mode cavity is connected；
The type of the metal outer mold is intracavitary to be provided with chill part mounting groove compatible with the aluminium alloy chill part；
The aluminium alloy chill part is arranged in the chill part mounting groove；
The isolated thermal center of the aluminium alloy chill part and the thin-section casting mutually agrees with.
Above-mentioned a kind of thin-section casting mold, wherein the metal outer mold is made of cast iron quality.
Above-mentioned a kind of thin-section casting mold, wherein the L-shaped structure of aluminium alloy chill part, the aluminium alloy chill
Part includes transverse part and longitudinal direction portion, and the front end in the longitudinal direction portion is connected with the right end of the transverse part, the aluminium alloy chill part
The interior outside of corner be arc-shaped shape respectively, and the inside of the corner of the aluminium alloy chill part and the thin-walled are cast
The isolated thermal center of part mutually agrees with.
Above-mentioned a kind of thin-section casting mold, wherein the volume of the aluminium alloy chill part is more than or equal to described thin
3 times of the volume of the isolated thermal center of wall casting.
The thin-section casting mold of the utility model, it is cold by making the aluminium alloy mutually agreed with the isolated thermal center of thin-section casting
Ironware, since chill temperature is low, thermally conductive fast characteristic, so that chilling action is carried out to heat energy-saving position by chill in casting process,
So that the thermal center solidifies in advance, shrinkage defect is avoided the occurrence of, to obtain castings.Meanwhile passing through reasonable procedure arrangement
And the accurate control of process conditions reduces the labor intensity of operator, mentions while improving work situation condition
High production efficiency.
Detailed description of the invention
Fig. 1 is the sectional view of Pump Body Parts；
The structure chart of the thin-section casting mold of Fig. 2 the utility model；
Fig. 3 a is the front view of the aluminium alloy chill part of the thin-section casting mold of the utility model；
Fig. 3 b is the side view of the aluminium alloy chill part of the thin-section casting mold of the utility model；
Fig. 3 c is the bottom view of the aluminium alloy chill part of the thin-section casting mold of the utility model；
Fig. 4 is the process for using figure of the thin-section casting mold of the utility model.
Specific embodiment
In order to make those skilled in the art be better understood when the technical solution of the utility model, below with reference to attached
Its specific embodiment is described in detail in figure:
Please refer to Fig. 2 to Fig. 3 c, the most preferred embodiment of the utility model, thin-section casting include 11 ' of thin-walled portion and and its
Connected 12 ' of isolated thermal center (see Fig. 1), a kind of thin-section casting mold include metal outer mold and aluminium alloy chill part 2.
Metal outer mold includes upper die and lower die 1, and the lower surface of upper mold is provided with the upper cavity being recessed upwards；Lower die 1 it is upper
Surface is provided with the lower mode cavity 11 to lower recess；Upper mould cover closes in lower die 1, shape forming cavity after upper cavity is connected with lower mode cavity 2；
The type of metal outer mold is intracavitary to be provided with chill part mounting groove 12 compatible with aluminium alloy chill part 2；Aluminium alloy chill part 2 is arranged
In chill part mounting groove 12；Aluminium alloy chill part 2 and the 12 ' phase of isolated thermal center of thin-section casting are agreed with.
Metal outer mold is made of cast iron quality.The L-shaped structure of aluminium alloy chill part 2, aluminium alloy chill part 2 include laterally
Portion 21 and longitudinal direction portion 22, the front end in longitudinal portion 22 are connected with the right end of transverse part 21, the corner of aluminium alloy chill part 2 it is inside and outside
Side is arc-shaped shape respectively, and the inside 23 of the corner of aluminium alloy chill part 2 and the isolated thermal center of thin-section casting mutually agree with.
The volume of aluminium alloy chill part 2 is more than or equal to 3 times of the volume of 12 ' of isolated thermal center of thin-section casting.Aluminium alloy chill part 2
It can reuse, can use at any time.
Referring to Fig. 4, the thin-section casting mold of the utility model, in processing, in use, specifically including following below scheme:
Step S1 prepares aluminium alloy chill part 2: designing blind riser at the isolated thermal center of thin-section casting, pours and outpour casting
Riser is removed afterwards, the riser removed is polished, then by the riser after polishing as aluminium alloy chill part 2, in this way, can
To guarantee that aluminium alloy chill part 2 and the isolated thermal center of thin-section casting mutually agree with, aluminium alloy chill part 2 is put into metal outer mold；
Aluminium alloy melt investment smelting furnace is turned to liquid by step S2, and by molten aluminum in 700 DEG C -750 DEG C of temperature
Science and engineering sequence obtains clean molten aluminum；
Step S3, by the type chamber of sand core tripping in metal outer mold；
Molten aluminum in step S2, is poured into the type chamber of metal outer mold by step S4, and is cooled into casting mold；
Casting mold obtained by step S4 is removed the operation of sand core and dead head, obtains the thin-walled of finished product by step S5
Casting.
In conclusion the thin-section casting mold of the utility model, is mutually agreed with by production and the isolated thermal center of thin-section casting
Aluminium alloy chill part, since chill temperature is low, thermally conductive fast characteristic, so that being carried out by chill to heat energy-saving position in casting process
Chilling action avoids the occurrence of shrinkage defect so that the thermal center solidifies in advance, to obtain castings.In addition aluminium alloy chill
Part 2 can be reused, be can use at any time, by the accurate control of reasonable procedure arrangement and process conditions, improve labor
While dynamic environmental condition, the labor intensity of operator is reduced, production efficiency is improved.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate that this is practical new
Type, and be not used as the restriction to the utility model, as long as in the spirit of the utility model, to the above
Variation, the modification of embodiment will all be fallen in the Claims scope of the utility model.
Claims (4)
1. a kind of thin-section casting mold, thin-section casting includes thin-walled portion and coupled isolated thermal center, which is characterized in that institute
Stating thin-section casting mold includes metal outer mold and aluminium alloy chill part, in which:
The metal outer mold includes upper die and lower die, and the lower surface of the upper mold is provided with the upper cavity being recessed upwards；Under described
The upper surface of mould is provided with the lower mode cavity to lower recess；The upper mould cover closes in the lower die, the upper cavity and it is described under
Shape forming cavity after die cavity is connected；
The type of the metal outer mold is intracavitary to be provided with chill part mounting groove compatible with the aluminium alloy chill part；
The aluminium alloy chill part is arranged in the chill part mounting groove；
The isolated thermal center of the aluminium alloy chill part and the thin-section casting mutually agrees with.
2. a kind of thin-section casting mold according to claim 1, which is characterized in that the metal outer mold uses cast iron quality
It is made.
3. a kind of thin-section casting mold according to claim 1, which is characterized in that the L-shaped knot of aluminium alloy chill part
Structure, the aluminium alloy chill part include transverse part and longitudinal direction portion, and the front end in the longitudinal direction portion is connected with the right end of the transverse part,
The interior outside of the corner of the aluminium alloy chill part is arc-shaped shape respectively, and the corner of the aluminium alloy chill part
Inside and the isolated thermal center of the thin-section casting mutually agree with.
4. a kind of thin-section casting mold according to claim 1, which is characterized in that the volume of the aluminium alloy chill part is big
In or equal to 3 times of volume of isolated thermal center of the thin-section casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822150163.4U CN209424499U (en) | 2018-12-20 | 2018-12-20 | A kind of thin-section casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822150163.4U CN209424499U (en) | 2018-12-20 | 2018-12-20 | A kind of thin-section casting mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209424499U true CN209424499U (en) | 2019-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822150163.4U Active CN209424499U (en) | 2018-12-20 | 2018-12-20 | A kind of thin-section casting mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112808938A (en) * | 2020-12-28 | 2021-05-18 | 滁州沃博自动化科技有限公司 | Manufacturing method of aluminum lower exhaust pipe of double-cylinder pendulum type oilless air compressor |
-
2018
- 2018-12-20 CN CN201822150163.4U patent/CN209424499U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112808938A (en) * | 2020-12-28 | 2021-05-18 | 滁州沃博自动化科技有限公司 | Manufacturing method of aluminum lower exhaust pipe of double-cylinder pendulum type oilless air compressor |
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