CN113600759A - Core structure for casting inclined hole and molding method thereof - Google Patents
Core structure for casting inclined hole and molding method thereof Download PDFInfo
- Publication number
- CN113600759A CN113600759A CN202110950043.6A CN202110950043A CN113600759A CN 113600759 A CN113600759 A CN 113600759A CN 202110950043 A CN202110950043 A CN 202110950043A CN 113600759 A CN113600759 A CN 113600759A
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C21/00—Flasks; Accessories therefor
- B22C21/12—Accessories
- B22C21/14—Accessories for reinforcing or securing moulding materials or cores, e.g. gaggers, chaplets, pins, bars
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- 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
- B22C9/106—Vented or reinforced cores
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention belongs to the technical field of inclined hole casting, and particularly relates to a core structure for casting an inclined hole and a molding method thereof. The invention overcomes the technical bias of making a large core print along the plane in the prior art, and effectively avoids the fracture of the inclined core and the core print through the unidirectional extension of the core print, thereby ensuring the casting quality. According to the core structure, due to the consistency of the support core print and the inclined core in the extension direction, the center of gravity is stable, the inclined core is not easy to deflect, and the inclined core and the support core print are prevented from being connected unstably and being broken, so that the inclined core is accurately and stably positioned.
Description
Technical Field
The invention belongs to the technical field of inclined hole casting, and particularly relates to a core structure for casting an inclined hole and a molding method thereof.
Background
In the existing casting process, the casting of the inclined hole is always a difficult problem, an inclined core needs to be preset in a sand box, the inclined core is difficult to be effectively positioned due to unstable gravity center, and the inclined core is easy to deflect at an original angle due to the impact of molten iron when molten iron is poured, so that the casting quality of a casting is influenced. In the prior art, a mode of manufacturing a large lower core print is adopted for stabilizing the inclined core, but the obtuse angle between the inclined core and the lower core print is extremely easy to break, and a good positioning effect cannot be achieved.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a core structure for casting an inclined hole and a molding method thereof, which can stabilize the center of gravity of an inclined core by making a large core print in an acute angle direction and make it less likely to be deflected.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a core structure for casting a slant hole includes a slant core for forming a slant hole of a casting and a support core for supporting the slant core, the support core being disposed at an acute angle to the slant core.
Furthermore, the supporting core head is formed by protruding the bottom end of the inclined core out of the lower surface of the cavity and horizontally extending towards one side, and the supporting core head is arranged in the horizontal direction.
Further, the oblique core and the support core head are integrally arranged.
A molding method for casting an inclined hole, comprising the steps of:
the method comprises the following steps: manufacturing an inclined core with a one-way enlarged lower core print according to the length and the inclination angle of the inclined hole, wherein the one-way enlarged lower core print is a supporting core print for positioning a bottom plane, the supporting core print and the inclined core form an 'angle' structure, and the angle formed by the supporting core print and the inclined core is an acute angle;
step two: setting a core, namely putting the inclined core manufactured in the step one into a lower sand box, wherein a lower positioning surface matched with the support core head is arranged at the position for positioning the inclined core in the lower sand box, and the support core head is matched and positioned with the lower positioning surface;
step three: and (5) assembling the cope flask and the drag flask.
Further, the inclined core and the supporting core head are of an integrated structure.
Further, the inclined mold core and the support core head are formed by sand washing and shaping.
Further, the length of the supporting core head in the horizontal direction is larger than the length of one third of the horizontal projection of the inclined core.
The invention has the beneficial effects that: the invention overcomes the technical bias of making a large core print along the plane in the prior art, and effectively avoids the fracture of the inclined core and the core print through the unidirectional extension of the core print, thereby ensuring the casting quality. According to the core structure, due to the consistency of the support core print and the inclined core in the extension direction, the center of gravity is stable, the inclined core is not easy to deflect, and the inclined core and the support core print are prevented from being connected unstably and being broken, so that the inclined core is accurately and stably positioned.
Drawings
FIG. 1 is a schematic view of a positioning structure of an inclined core;
in the figure: 1. an inclined core 2, a support core head 3 and a cavity.
Detailed Description
In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention.
Referring to fig. 1, a core structure for casting a slant hole includes a slant core 1 for forming a slant hole of a casting and a support core 2 for supporting the slant core, the support core 2 being disposed at an acute angle to the slant core 1.
Furthermore, the supporting core print 2 is formed by protruding the bottom end of the inclined core out of the lower surface of the cavity and horizontally extending towards one side, and the supporting core print 1 is arranged in the horizontal direction.
Further, the inclined core 1 and the support core head 2 are integrally provided. The connection strength of the inclined core 1 and the support core head 2 is ensured.
Based on the technical scheme, it needs to be explained that compared with a method for positioning the inclined core by arranging the upper core print and the lower core print, the positioning mode of the core print of the inclined core is changed from point positioning to surface positioning, so that the problems that the gravity center of the inclined core is unstable, the positioning is not firm, the inclined core is easy to be impacted by molten iron to shift when the molten iron is cast are solved, and the positioning precision is ensured. Compared with the traditional method for positioning the inclined core by enlarging the lower core print horizontally and bidirectionally, the inclined core is easy to be stressed towards the inclined side due to the fact that the gravity centers of the lower core print and the inclined core are inconsistent, and therefore the inclined core is broken with the lower core print. The positioning mode of the inclined core print of the invention ensures the consistency of the gravity center directions of the inclined core and the supporting core print, and avoids the fracture of the inclined core and the lower core print at an obtuse angle, thereby ensuring the positioning stability.
A molding method for casting an inclined hole, comprising the steps of:
the method comprises the following steps: manufacturing an inclined core with a one-way enlarged lower core print according to the length and the inclination angle of the inclined hole, wherein the one-way enlarged lower core print is a supporting core print for positioning a bottom plane, the supporting core print and the inclined core form an 'angle' structure, and the angle formed by the supporting core print and the inclined core is an acute angle;
step two: setting a core, namely putting the inclined core manufactured in the step one into a lower sand box, wherein a lower positioning surface matched with the support core head is arranged at the position for positioning the inclined core in the lower sand box, and the support core head is matched and positioned with the lower positioning surface;
step three: and (5) assembling the cope flask and the drag flask.
Furthermore, the inclined mold core and the support core head are of an integrated structure formed by sand washing and shaping.
Further, the length of the supporting core head in the horizontal direction is larger than the length of one third of the horizontal projection of the inclined core.
The above list is only the preferred embodiment of the present invention. It is obvious that the invention is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (7)
1. A core construction for casting an inclined bore, comprising: the inclined core forming device comprises an inclined core for forming an inclined hole of a casting and a supporting core head for supporting the inclined core, wherein the supporting core head and the inclined core are arranged at an acute angle.
2. The core structure for casting an inclined hole according to claim 1, wherein: the supporting core head is formed by protruding the bottom end of an inclined core out of the lower surface of the cavity and horizontally extending towards one side, and the supporting core head is arranged in the horizontal direction.
3. The core structure for casting an inclined hole according to claim 1, wherein: the inclined core and the supporting core head are integrally arranged.
4. A molding method for casting an inclined hole, comprising the steps of:
the method comprises the following steps: manufacturing an inclined core with a one-way enlarged lower core print according to the length and the inclination angle of the inclined hole, wherein the one-way enlarged lower core print is a supporting core print for positioning a bottom plane, the supporting core print and the inclined core form an 'angle' structure, and the angle formed by the supporting core print and the inclined core is an acute angle;
step two: setting a core, namely putting the inclined core manufactured in the step one into a lower sand box, wherein a lower positioning surface matched with the support core head is arranged at the position for positioning the inclined core in the lower sand box, and the support core head is matched and positioned with the lower positioning surface;
step three: and (5) assembling the cope flask and the drag flask.
5. The molding method for casting an inclined hole according to claim 4, wherein: the inclined mold core and the support core head are of an integrated structure.
6. The molding method for casting an inclined hole according to claim 4, wherein: the inclined mold core and the supporting core head are formed by sand washing and shaping.
7. The molding method for casting an inclined hole according to claim 4, wherein: the length of the supporting core head in the horizontal direction is larger than the length of the horizontal projection of one third of the inclined core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110950043.6A CN113600759B (en) | 2021-08-18 | 2021-08-18 | Core structure for casting inclined hole and molding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110950043.6A CN113600759B (en) | 2021-08-18 | 2021-08-18 | Core structure for casting inclined hole and molding method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113600759A true CN113600759A (en) | 2021-11-05 |
| CN113600759B CN113600759B (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110950043.6A Active CN113600759B (en) | 2021-08-18 | 2021-08-18 | Core structure for casting inclined hole and molding method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202123216U (en) * | 2011-05-13 | 2012-01-25 | 无锡小天鹅精密铸造有限公司 | Casting mould for casting thin and deep hole |
| CN102641996A (en) * | 2012-04-16 | 2012-08-22 | 芜湖永裕汽车工业有限公司 | Sand core structure for air flue of cylinder cover of engine |
| CN203197203U (en) * | 2013-04-22 | 2013-09-18 | 太仓林飞铸造有限公司 | Core print structure capable of preventing core from inclining |
| CN106077496A (en) * | 2016-07-27 | 2016-11-09 | 大连金河铸造有限公司 | For casting the core of oblique bed ways |
| CN106111910A (en) * | 2016-07-29 | 2016-11-16 | 共享装备股份有限公司 | The method that core print and casting mold rub sand is overlapped and is prevented in protection for casting mould |
| CN208879621U (en) * | 2018-10-18 | 2019-05-21 | 四川省犍为恒益铝业有限公司 | A kind of automobile-used cabinet draw sand core structure |
| CN112157224A (en) * | 2020-09-30 | 2021-01-01 | 大连金河铸造有限公司 | Sand core structure for elongated hole casting and positioning method |
| CN212419529U (en) * | 2020-05-29 | 2021-01-29 | 烟台冰轮智能机械科技有限公司 | Sand core positioning structure |
-
2021
- 2021-08-18 CN CN202110950043.6A patent/CN113600759B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202123216U (en) * | 2011-05-13 | 2012-01-25 | 无锡小天鹅精密铸造有限公司 | Casting mould for casting thin and deep hole |
| CN102641996A (en) * | 2012-04-16 | 2012-08-22 | 芜湖永裕汽车工业有限公司 | Sand core structure for air flue of cylinder cover of engine |
| CN203197203U (en) * | 2013-04-22 | 2013-09-18 | 太仓林飞铸造有限公司 | Core print structure capable of preventing core from inclining |
| CN106077496A (en) * | 2016-07-27 | 2016-11-09 | 大连金河铸造有限公司 | For casting the core of oblique bed ways |
| CN106111910A (en) * | 2016-07-29 | 2016-11-16 | 共享装备股份有限公司 | The method that core print and casting mold rub sand is overlapped and is prevented in protection for casting mould |
| CN208879621U (en) * | 2018-10-18 | 2019-05-21 | 四川省犍为恒益铝业有限公司 | A kind of automobile-used cabinet draw sand core structure |
| CN212419529U (en) * | 2020-05-29 | 2021-01-29 | 烟台冰轮智能机械科技有限公司 | Sand core positioning structure |
| CN112157224A (en) * | 2020-09-30 | 2021-01-01 | 大连金河铸造有限公司 | Sand core structure for elongated hole casting and positioning method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113600759B (en) | 2023-03-21 |
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