CN113953487A - Low-pressure casting method for preventing shrinkage of bearing seat of automobile control arm - Google Patents
Low-pressure casting method for preventing shrinkage of bearing seat of automobile control arm Download PDFInfo
- Publication number
- CN113953487A CN113953487A CN202111310097.2A CN202111310097A CN113953487A CN 113953487 A CN113953487 A CN 113953487A CN 202111310097 A CN202111310097 A CN 202111310097A CN 113953487 A CN113953487 A CN 113953487A
- Authority
- CN
- China
- Prior art keywords
- control arm
- bearing seat
- iron core
- pressure casting
- low
- 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.)
- Pending
Links
- 238000005266 casting Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 230000000630 rising effect Effects 0.000 claims description 12
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003031 feeding effect Effects 0.000 abstract description 3
- 238000007711 solidification Methods 0.000 abstract description 3
- 230000008023 solidification Effects 0.000 abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a low-pressure casting method for preventing a bearing seat of an automobile control arm from shrinking, wherein an iron core is placed on a through hole of a lower die corresponding to the bearing seat of the control arm, and the bottom of the iron core is connected with a cooling pipe; in the low-pressure casting process, a heat-insulating riser is formed at the top of the through hole of the upper die corresponding to the bearing seat of the control arm, and meanwhile, the bottom of the iron core is ventilated and cooled through a cooling pipe. The invention designs the heat-insulating riser with a special structure, thereby improving the feeding effect; the feeding of the bearing seat of the control arm is completed under the action of the heat-insulating riser, and meanwhile, the bottom die iron core is cooled by air, so that the sequential solidification effect is increased, and the reject ratio of the casting is greatly reduced.
Description
Technical Field
The invention relates to the field of casting of automobile control arms, in particular to a low-pressure casting method for preventing a bearing seat of an automobile control arm from shrinking.
Background
The feeding of the existing automobile control arm is limited by the size structure of a bearing hole and cannot be enlarged, so that the bearing seat of the automobile control arm is easy to shrink in the casting process, and the quality of a casting is affected.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a low-pressure casting method for preventing the shrinkage of a bearing seat of an automobile control arm.
In order to achieve the purpose, the invention adopts the following technical scheme:
a low-pressure casting method for preventing a bearing seat of an automobile control arm from shrinking comprises the steps of placing an iron core on a through hole of a lower die corresponding to the bearing seat of the control arm, and connecting the bottom of the iron core with a cooling pipe; in the low-pressure casting process, a heat-insulating riser is formed at the top of the through hole of the upper die corresponding to the bearing seat of the control arm, and meanwhile, the bottom of the iron core is ventilated and cooled through a cooling pipe.
Furthermore, the heat preservation rising head includes middle rising head and cyclic annular rising head, middle rising head is located the through-hole top of control arm bearing frame, cyclic annular rising head encircles in the week side of middle rising head.
By adopting the technical scheme, the invention has the following beneficial technical effects: the insulating riser with a special structure is designed, so that the feeding effect is improved; the feeding of the bearing seat of the control arm is completed under the action of the heat-insulating riser, and meanwhile, the bottom die iron core is cooled by air, so that the sequential solidification effect is increased, and the reject ratio of the casting is greatly reduced.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and the detailed description;
FIG. 1 is a schematic view of the low pressure casting method of the present invention.
Detailed Description
As shown in figure 1, the invention relates to a low-pressure casting method for preventing the shrinkage of a bearing pedestal of an automobile control arm, wherein an iron core 4 is arranged on a through hole of a lower die 1 corresponding to a bearing pedestal 3 of the control arm, and the bottom of the iron core 4 is connected with a cooling pipe 5; in the low-pressure casting process, a heat-insulating riser is formed at the top of the through hole of the upper die 2 corresponding to the control arm bearing block 3, and meanwhile, the bottom of the iron core 4 is ventilated and cooled through the cooling pipe 5.
The heat-insulating riser comprises a middle riser 6 and an annular riser 7, the middle riser 6 is located at the top of the through hole of the control arm bearing block 3, and the annular riser 7 surrounds the periphery of the middle riser 6.
Because the feeding is restricted by the size structure of the bearing hole and can not be made large, the heat-insulating riser with a special structure is adopted, and the feeding effect is improved: the feeding of the bearing seat of the control arm is completed under the action of the heat-insulating riser, and the bottom die iron core is cooled by wind, so that the sequential solidification effect is increased, and the casting quality is improved. Compared with the prior art that a heat-insulating riser and cooling are not adopted, the shrinkage porosity of the bearing block of the control arm is reduced to 0 percent from 85 percent.
While the invention has been described in connection with the above embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, which are illustrative and not restrictive, and that those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (2)
1. The utility model provides a low pressure casting method that car control arm bearing frame prevented shrink which characterized in that: placing an iron core on the through hole of the lower die corresponding to the bearing seat of the control arm, and connecting the bottom of the iron core with a cooling pipe; in the low-pressure casting process, a heat-insulating riser is formed at the top of the through hole of the upper die corresponding to the bearing seat of the control arm, and meanwhile, the bottom of the iron core is ventilated and cooled through a cooling pipe.
2. The low pressure casting method of preventing shrinkage of a bearing housing of an automobile control arm as set forth in claim 1, wherein: the heat preservation rising head includes middle rising head and cyclic annular rising head, middle rising head is located the through-hole top of control arm bearing frame, cyclic annular rising head encircles in the week side of middle rising head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310097.2A CN113953487A (en) | 2021-10-29 | 2021-10-29 | Low-pressure casting method for preventing shrinkage of bearing seat of automobile control arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310097.2A CN113953487A (en) | 2021-10-29 | 2021-10-29 | Low-pressure casting method for preventing shrinkage of bearing seat of automobile control arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113953487A true CN113953487A (en) | 2022-01-21 |
Family
ID=79469524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111310097.2A Pending CN113953487A (en) | 2021-10-29 | 2021-10-29 | Low-pressure casting method for preventing shrinkage of bearing seat of automobile control arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113953487A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009255138A (en) * | 2008-04-17 | 2009-11-05 | Tajima Keikinzoku:Kk | Low-pressure casting apparatus and method |
| CN102489673A (en) * | 2011-12-01 | 2012-06-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Method for casting locomotive positioning arm castings |
| CN205110694U (en) * | 2015-07-20 | 2016-03-30 | 浙江曙光实业有限公司 | Iron core cooling device of automobile wheel hub mould |
| CN205270758U (en) * | 2016-01-18 | 2016-06-01 | 山西中设华晋铸造有限公司 | Exhaust stick structure of wheel centre bore psammitolite |
| CN106513586A (en) * | 2016-11-22 | 2017-03-22 | 鞍钢铸钢有限公司 | Mine-crusher upper frame casting method |
| CN207119780U (en) * | 2017-04-13 | 2018-03-20 | 辽宁北方精密设备有限公司 | New-energy automobile water cooling casing casting metal-mold low-pressure casting mould |
| CN212577448U (en) * | 2020-07-03 | 2021-02-23 | 浙江华强铸锻有限公司 | Bearing seat die |
-
2021
- 2021-10-29 CN CN202111310097.2A patent/CN113953487A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009255138A (en) * | 2008-04-17 | 2009-11-05 | Tajima Keikinzoku:Kk | Low-pressure casting apparatus and method |
| CN102489673A (en) * | 2011-12-01 | 2012-06-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Method for casting locomotive positioning arm castings |
| CN205110694U (en) * | 2015-07-20 | 2016-03-30 | 浙江曙光实业有限公司 | Iron core cooling device of automobile wheel hub mould |
| CN205270758U (en) * | 2016-01-18 | 2016-06-01 | 山西中设华晋铸造有限公司 | Exhaust stick structure of wheel centre bore psammitolite |
| CN106513586A (en) * | 2016-11-22 | 2017-03-22 | 鞍钢铸钢有限公司 | Mine-crusher upper frame casting method |
| CN207119780U (en) * | 2017-04-13 | 2018-03-20 | 辽宁北方精密设备有限公司 | New-energy automobile water cooling casing casting metal-mold low-pressure casting mould |
| CN212577448U (en) * | 2020-07-03 | 2021-02-23 | 浙江华强铸锻有限公司 | Bearing seat die |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220121 |