CN110064734A - A kind of thin-walled aluminium alloy castings gravity casting equipment - Google Patents
A kind of thin-walled aluminium alloy castings gravity casting equipment Download PDFInfo
- Publication number
- CN110064734A CN110064734A CN201910389765.1A CN201910389765A CN110064734A CN 110064734 A CN110064734 A CN 110064734A CN 201910389765 A CN201910389765 A CN 201910389765A CN 110064734 A CN110064734 A CN 110064734A
- Authority
- CN
- China
- Prior art keywords
- running channel
- casting
- type chamber
- sand core
- aluminium alloy
- 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.)
- Granted
Links
- 238000005266 casting Methods 0.000 title claims abstract description 82
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 23
- 230000005484 gravity Effects 0.000 title claims abstract description 15
- 239000004576 sand Substances 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
Abstract
The invention discloses a kind of thin-walled aluminium alloy castings gravity casting equipments, including support housing, sand core and running channel, support housing is filled with precoated sand, inside is cavity, sand core is located in cavity, sand core outer wall and cavity inner wall gap are casting type chamber, and running channel is set to sand core internal, and running channel is divided into sprue, tiltedly running channel, tiltedly running channel, flat running channel and bottom pour mold road on second on first.Multiple running channels are arranged in thin-walled aluminium alloy castings gravity casting equipment of the present invention in sand core, molten aluminum can enter in casting type chamber from each running channel simultaneously when casting, it avoids the molten aluminum that casting type chamber occurs since gap is too small and fills insufficient problem, it pressurizes after molten aluminum filling uniform, avoid the difference of different parts caused by pressurization unevenness, it is vented using type chamber when present invention casting, casting effect is good, can improve the aluminium alloy castings gravitational casting yield rate that wall thickness is less than 3mm to 95% or more.
Description
Technical field
The present invention relates to casting field more particularly to a kind of thin-walled aluminium alloy castings gravity casting equipments.
Background technique
Aluminum alloy materials are since density is low, specific strength is high, specific stiffness is high and machining property is excellent, in recent years in national defence
Military industry field is widely used and promotes, and compared with machined material preparation process, aluminium alloy casting is due to adapting to
Range is wide, using material ranges, wide, integral forming manufactures and produces the excellent characteristics such as at low cost in batches, has obtained domestic military project
The favor and attention of designing unit.Wimble structure aluminium alloy castings are closed as the typical aluminium in middle-size and small-size strategy and tactics missile armament
Golden casting has obtained wide with aluminium alloy castings lightweight in recent years, integration and the continuous development of precise treatment forming technique
General application.
Type initial stage alloy melt is filled when thin-walled aluminium alloy castings casting used at present to be filled from bottom to top, it is higher
It fills type head pressure scour cast surface and is also easy to produce dreg defect, and higher filling velocity causes the intracavitary portion gas of type not obtain
It to timely discharge, generates volume gas and causes loose, needle pore defect, do not obtain obtaining after timely feeding between adjacent slits running channel high-quality
Casting.
Summary of the invention
The present invention is directed to the problem that existing thin-walled aluminium alloy castings quality is difficult to control, and provides a kind of thin-walled aluminium alloy castings
Gravity casting equipment.
The technical scheme to solve the above technical problems is that a kind of thin-walled aluminium alloy castings gravity casting equipment,
Including support housing, sand core and running channel, which is characterized in that the support housing is filled with precoated sand, and inside is cavity, the sand
Core is located in cavity, and the sand core outer wall and cavity inner wall gap are casting type chamber, and the running channel is set to the sand core internal, institute
State running channel be divided into sprue, tiltedly running channel, tiltedly running channel, flat running channel and bottom pour mold road on second on first, the sprue is through described
Among sand core, oblique running channel on described first, tiltedly running channel, flat running channel and bottom pour mold road are connected to the sprue on second, and according to
Secondary to arrange from top to bottom, oblique running channel on described first, tiltedly running channel, flat running channel and bottom pour mold road are four and uniformly point on second
Cloth, tiltedly the running channel other end is connected to by tiltedly pushing up on sprue gating and the casting type chamber on first on described first, and described second
The upper oblique running channel other end is connected to by oblique sprue gating on second with the casting cavity lateral, the flat running channel other end passes through
Flat sprue gating is connected to the casting cavity lateral, and the bottom pour mold road other end passes through bottom sprue gating and the casting type chamber
Lower wall connection.
Wherein, the casting type chamber is cuboid or cylindrical body；Oblique running channel on oblique running channel and described second on described first
Level inclination is respectively 45 °~60 ° and 15 °~30 °；For the casting type chamber with a thickness of 1~3mm, outer diameter is 200~400mm, high
Degree is 300~500mm.
The beneficial effects of the present invention are: multiple pour is arranged in thin-walled aluminium alloy castings gravity casting equipment of the present invention in sand core
Road, molten aluminum can enter in casting type chamber from each running channel simultaneously when casting, avoid casting type chamber and occur since gap is too small
Molten aluminum fill insufficient problem, pressurize uniformly after molten aluminum filling, avoid pressurization it is uneven caused by different parts difference,
It is vented using type chamber when present invention casting, casting effect is good, and wall thickness can be less than to the aluminium alloy castings gravitational casting finished product of 3mm
Rate is improved to 95% or more.
Detailed description of the invention
Fig. 1 is sectional front view of the present invention；Fig. 2 is sectional view at horizontal line A；Fig. 3 is sectional view at horizontal line B；Each portion
It is respectively as follows:
1, support housing, 2, sand core, 3, sprue, oblique running channel on 4, first, oblique sprue gating on 5, first, 6, casting type
Chamber, oblique running channel on 7, second, oblique sprue gating on 8, second, 9, flat running channel, 10, flat sprue gating, 11, bottom pour mold road, 12, bottom pour mold
Road cast gate.
Specific embodiment
Below in conjunction with example, present invention is described, and the given examples are served only to explain the present invention, is not intended to limit this
The range of invention.
Embodiment 1
As shown in Figure 1, a kind of thin-walled aluminium alloy castings gravity casting equipment, including support housing 1, sand core 2 and running channel, branch
It supports shell 1 and is filled with precoated sand, inside is cavity, and sand core 2 is located in cavity, and 2 outer wall of sand core and cavity inner wall gap are casting
Type chamber 6, casting type chamber 6 are highly 300mm with a thickness of 1mm, outer diameter 200mm for cuboid, and running channel is set to inside sand core 2,
Running channel is divided on sprue 3, first on oblique running channel 4, second oblique running channel 7, flat running channel 9 and bottom pour mold road 11, and sprue 3 runs through sand core
Among 2, oblique running channel 7, flat running channel 9 and bottom pour mold road 11 are connected to sprue 3 on oblique running channel 4, second on first, and successively from upper
To lower arrangement, tiltedly tiltedly running channel 7, flat running channel 9 and bottom pour mold road 11 are four and are uniformly distributed, first on running channel 4, second on first
Upper oblique 4 level inclination of running channel is 45 °, and the other end is connected to by tiltedly pushing up on sprue gating 5 and casting type chamber 6 on first, second
Upper oblique 7 level inclination of running channel is 15 °, and the other end, which passes through oblique sprue gating 8 on second, to be connected to 6 side wall of casting type chamber, put down and pour
9 other end of road is connected to by flat sprue gating 10 with 6 side wall of casting type chamber, 11 other end of bottom pour mold road by bottom sprue gating 12 with
The connection of 6 lower wall of casting type chamber.
Embodiment 2
As shown in Figure 1-3, a kind of thin-walled aluminium alloy castings gravity casting equipment, including support housing 1, sand core 2 and running channel,
Support housing 1 is filled with precoated sand, and inside is cavity, and sand core 2 is located in cavity, and 2 outer wall of sand core and cavity inner wall gap are casting
Part type chamber 6, casting type chamber 6 are highly 500mm with a thickness of 3mm, outer diameter 400mm for cylindrical body, and running channel is set in sand core 2
Portion, running channel are divided on sprue 3, first on oblique running channel 4, second oblique running channel 7, flat running channel 9 and bottom pour mold road 11, sprue 3 and run through
Among sand core 2, oblique running channel 7, flat running channel 9 and bottom pour mold road 11 are connected to sprue 3 on oblique running channel 4, second on first, and successively
It arranges from top to bottom, oblique running channel 7, flat running channel 9 and bottom pour mold road 11 are four and are uniformly distributed on oblique running channel 4, second on first,
4 level inclination of oblique running channel is 60 ° on first, and the other end is connected to by tiltedly pushing up on sprue gating 5 and casting type chamber 6 on first,
7 level inclination of oblique running channel is 30 ° on second, the other end by second tiltedly sprue gating 8 be connected to 6 side wall of casting type chamber,
Flat 9 other end of running channel is connected to by flat sprue gating 10 with 6 side wall of casting type chamber, and 11 other end of bottom pour mold road passes through bottom sprue gating
12 are connected to 6 lower wall of casting type chamber.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of thin-walled aluminium alloy castings gravity casting equipment, including support housing, sand core and running channel, which is characterized in that described
Support housing is filled with precoated sand, and inside is cavity, and the sand core is located in cavity, the sand core outer wall and cavity inner wall gap
For casting type chamber, the running channel is set to the sand core internal, the running channel be divided into sprue, on first tiltedly running channel, on second tiltedly
Running channel, flat running channel and bottom pour mold road, the sprue among the sand core, oblique running channel on described first, oblique running channel on second,
Flat running channel and bottom pour mold road are connected to the sprue, and are successively arranged from top to bottom, oblique running channel on described first, on second tiltedly
Running channel, flat running channel and bottom pour mold road are four and are uniformly distributed, and the oblique running channel other end passes through oblique running channel on first on described first
It pushes up and is connected on cast gate and the casting type chamber, the oblique running channel other end passes through tiltedly sprue gating and the casting on second on described second
The connection of part cavity lateral, the flat running channel other end are connected to by flat sprue gating with the casting cavity lateral, the bottom pour mold
The road other end is connected to by bottom sprue gating with the casting type chamber lower wall.
2. thin-walled aluminium alloy castings gravity casting equipment according to claim 1, which is characterized in that the casting type chamber is
Cuboid or cylindrical body.
3. thin-walled aluminium alloy castings gravity casting equipment according to claim 1 or 2, which is characterized in that on described first
Tiltedly running channel level inclination is respectively 45 °~60 ° and 15 °~30 ° on oblique running channel and described second.
4. thin-walled aluminium alloy castings gravity casting equipment according to claim 1 or 2, which is characterized in that the casting type
Chamber is with a thickness of 1~3mm.
5. thin-walled aluminium alloy castings gravity casting equipment according to claim 2, which is characterized in that outside the casting type chamber
Diameter is 200~400mm, is highly 300~500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910389765.1A CN110064734B (en) | 2019-05-10 | 2019-05-10 | Gravity casting equipment for thin-wall aluminum alloy castings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910389765.1A CN110064734B (en) | 2019-05-10 | 2019-05-10 | Gravity casting equipment for thin-wall aluminum alloy castings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110064734A true CN110064734A (en) | 2019-07-30 |
| CN110064734B CN110064734B (en) | 2020-08-18 |
Family
ID=67370490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910389765.1A Active CN110064734B (en) | 2019-05-10 | 2019-05-10 | Gravity casting equipment for thin-wall aluminum alloy castings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110064734B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110899630A (en) * | 2019-11-28 | 2020-03-24 | 阿路米（无锡）有限公司 | Aluminum alloy casting mold capable of improving casting defects |
| CN112872327A (en) * | 2021-01-12 | 2021-06-01 | 重庆擎一模具制造有限公司 | Low-pressure casting die |
| CN115106485A (en) * | 2022-05-11 | 2022-09-27 | 北京航星机器制造有限公司 | Sand core assembly and mould for sand casting thin-wall structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63160747A (en) * | 1986-12-23 | 1988-07-04 | Asahi Malleable Iron Co Ltd | Casting method for cast iron-made piston |
| CN2723076Y (en) * | 2004-07-01 | 2005-09-07 | 关建云 | Metal shape casting mold for braking drum |
| CN107737878A (en) * | 2017-09-29 | 2018-02-27 | 中国航发北京航空材料研究院 | A kind of precision casting pouring system of thin-walled cone structure aluminium alloy castings |
| CN208408474U (en) * | 2018-05-03 | 2019-01-22 | 莱州金雁机械制造有限公司 | A kind of motor-car traction motor shell running gate system |
-
2019
- 2019-05-10 CN CN201910389765.1A patent/CN110064734B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63160747A (en) * | 1986-12-23 | 1988-07-04 | Asahi Malleable Iron Co Ltd | Casting method for cast iron-made piston |
| CN2723076Y (en) * | 2004-07-01 | 2005-09-07 | 关建云 | Metal shape casting mold for braking drum |
| CN107737878A (en) * | 2017-09-29 | 2018-02-27 | 中国航发北京航空材料研究院 | A kind of precision casting pouring system of thin-walled cone structure aluminium alloy castings |
| CN208408474U (en) * | 2018-05-03 | 2019-01-22 | 莱州金雁机械制造有限公司 | A kind of motor-car traction motor shell running gate system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110899630A (en) * | 2019-11-28 | 2020-03-24 | 阿路米（无锡）有限公司 | Aluminum alloy casting mold capable of improving casting defects |
| CN110899630B (en) * | 2019-11-28 | 2021-01-01 | 阿路米（无锡）有限公司 | Aluminum alloy casting mold capable of improving casting defects |
| CN112872327A (en) * | 2021-01-12 | 2021-06-01 | 重庆擎一模具制造有限公司 | Low-pressure casting die |
| CN112872327B (en) * | 2021-01-12 | 2022-03-01 | 重庆擎一模具制造有限公司 | Low-pressure casting die |
| CN115106485A (en) * | 2022-05-11 | 2022-09-27 | 北京航星机器制造有限公司 | Sand core assembly and mould for sand casting thin-wall structure |
| CN115106485B (en) * | 2022-05-11 | 2024-01-09 | 北京航星机器制造有限公司 | Sand core assembly and mold for sand casting thin-wall structure |
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| Publication number | Publication date |
|---|---|
| CN110064734B (en) | 2020-08-18 |
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Address after: No. 67 Shangzhuang Road, Fushan District, Yantai City, Shandong Province, 264000 Patentee after: Yantai Tongdingzhou Auto Parts Co.,Ltd. Address before: No. 67 Shangzhuang Road, Fushan District, Yantai City, Shandong Province, 264000 Patentee before: YANTAI TONGDINGZHOU AUTO PARTS CO.,LTD. |