CN113458330A - Large-scale guide pump casing casting system - Google Patents
Large-scale guide pump casing casting system Download PDFInfo
- Publication number
- CN113458330A CN113458330A CN202110748184.XA CN202110748184A CN113458330A CN 113458330 A CN113458330 A CN 113458330A CN 202110748184 A CN202110748184 A CN 202110748184A CN 113458330 A CN113458330 A CN 113458330A
- Authority
- CN
- China
- Prior art keywords
- ingate
- pump shell
- cavity
- pouring
- diversion
- 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 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 229910052845 zircon Inorganic materials 0.000 claims description 4
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000004576 sand Substances 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- 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
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a large-scale guide pump shell casting system which comprises a pouring system, a guide pump shell cavity and a loam core; the pouring system comprises a sprue, a cross gate communicated with the sprue and an ingate communicated with the cross gate; the ingates comprise a first ingate, a second ingate and a third ingate; the first inner pouring gate is positioned at the upper end position inside the cavity of the diversion pump shell; the second ingate is positioned in the middle of the inner part of the cavity of the shell of the diversion pump. The casting system of the large-scale diversion pump shell is provided with the upper layer ingate, the middle layer ingate and the lower layer ingate, when in pouring, the molten metal is filled from the third ingate at the bottom layer firstly, and flows through the ingates in all layers from top to bottom along with the rise of the liquid level in the cavity of the diversion pump shell body, so the filling is stable, the gas in the cavity of the diversion pump shell body is discharged, after the filling, the temperature of the molten metal at the upper part is higher than that of the molten metal at the lower part, the sequential solidification and riser feeding are facilitated, and the defects of insufficient pouring, cold shut, air holes, shrinkage porosity and the like of a casting can be avoided.
Description
Technical Field
The invention relates to the technical field of casting, in particular to a casting system of a large-scale guide pump shell.
Background
The diversion pump shell is used as a complex casting, the product is required to have compact structure and good sealing performance, and a hydrostatic test needs to be passed. Because the wall thickness of the guide pump shell is greatly different, the thinnest part of the guide vane is less than 10mm, and the defects of insufficient casting, cold shut and the like are easily generated during casting. Because the product has higher size and larger pouring weight, the static pressure head at the bottom of the casting is larger, and because the porosity of the resin sand is larger, high-temperature molten iron is easy to permeate into sand gaps or erode sand grains to generate sand sticking defects. Therefore, how to design a casting system of the large-scale guide pump shell is the technical problem to be solved by the invention.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a casting system for a large-scale guide pump shell.
The invention solves the technical problems through the following technical means:
the large-scale guide pump shell casting system comprises a pouring system, a guide pump shell cavity and a loam core; the pouring system comprises a sprue, a cross gate communicated with the sprue and an ingate communicated with the cross gate; the ingates comprise a first ingate, a second ingate and a third ingate; the first inner pouring gate is positioned at the upper end position inside the cavity of the diversion pump shell; the second ingate is positioned in the middle of the inner part of the cavity of the shell of the diversion pump; the third ingate is positioned at the bottom end of the inner part of the cavity of the guide pump shell; and the first ingate, the second ingate and the third ingate are all communicated with the cavity of the diversion pump shell.
As an improvement of the above technical solution, in the large guide pump shell casting system, at least one riser is arranged at the top end of the guide pump shell cavity; and an air outlet is formed in the riser.
As an improvement of the above technical solution, in the large-scale draft pump casing casting system, a core rod is arranged inside the core; the core rod is wound with an air outlet rope.
As an improvement of the technical scheme, in the large guide pump shell casting system, the surface of the loam core and the inner wall surface of the guide pump shell cavity are coated with the alcohol-based zircon powder coating.
The invention has the advantages that: the casting system of the large-scale diversion pump shell is provided with the upper layer ingate, the middle layer ingate and the lower layer ingate, when in pouring, the molten metal is filled from the third ingate at the bottom layer firstly, and flows through the ingates in all layers from top to bottom along with the rise of the liquid level in the cavity of the diversion pump shell body, so the filling is stable, the gas in the cavity of the diversion pump shell body is discharged, after the filling, the temperature of the molten metal at the upper part is higher than that of the molten metal at the lower part, the sequential solidification and riser feeding are facilitated, and the defects of insufficient pouring, cold shut, air holes, shrinkage porosity and the like of a casting can be avoided.
Drawings
FIG. 1 is a schematic view (one direction) of the construction of the gating system of the present invention.
FIG. 2 is a schematic view (another direction) of the construction of the gating system of the present invention.
Fig. 3 is a schematic view of the structure of the core.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
Embodiment 1, a large-scale guide pump shell casting system comprises a pouring system 1, a guide pump shell cavity 2 and a loam core 3; the gating system 1 comprises a sprue 11, a cross runner 12 communicated with the sprue 11 and an ingate communicated with the cross runner 12; the ingates include a first ingate 131, a second ingate 132, and a third ingate 133; the first ingate 131 is positioned at the upper end inside the cavity 2 of the diversion pump shell; the second ingate 132 is positioned in the middle of the inner part of the cavity 2 of the guide pump shell; the third ingate 133 is positioned at the bottom end inside the cavity 2 of the diversion pump shell; and the first ingate 131, the second ingate 132 and the third ingate 133 are all communicated with the cavity 2 of the diversion pump shell;
because the upper layer ingate, the middle layer ingate and the lower layer ingate are arranged, when in pouring, the molten metal is firstly filled by the bottom layer third ingate 133, and flows through the ingates in each layer from top to bottom along with the rising of the liquid level in the cavity 2 of the guide pump shell, so the filling is stable, the gas in the cavity 2 of the guide pump shell is discharged, after the filling, the temperature of the molten metal at the upper part is higher than that of the molten metal at the lower part, the sequential solidification and riser feeding are facilitated, and the defects of insufficient pouring, cold shut, air holes, shrinkage porosity and the like of a casting can be avoided.
As an improvement of the above technical solution, at least one riser 4 is arranged at the top end of the cavity 2 of the diaphragm pump housing; an air outlet 41 is formed in the riser 4;
the top end of the guide pump shell cavity 2 is provided with at least one riser 4, so that shrinkage of a guide pump shell casting during solidification is supplemented, and defects such as shrinkage cavity, shrinkage porosity and the like are prevented; the gas outlet 41 has the functions of exhausting and collecting slag, and improves the quality of castings.
As an improvement of the technical scheme, a core rod is arranged inside the mud core 3; the core rod is wound with an air outlet rope;
the setting of cob improves loam core 3's overall structure intensity, and the rope of giving vent to anger twines on the cob, strengthens the exhaust of loam core, avoids the gas pocket defect, improves the foundry goods quality.
As an improvement of the technical scheme, the surface of the loam core 3 and the inner wall surface of the cavity 2 of the diversion pump shell are coated with alcohol-based zircon powder coating;
alcohol-based zircon powder coating is coated on the surface of the sand core 3 and the inner wall surface of the cavity 2 of the diversion pump shell, so that high-temperature molten iron is prevented from permeating into sand gaps or corroding sand, the sand sticking defect is avoided, and the casting quality is ensured.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. Large-scale guiding pump casing casting system, its characterized in that: comprises a pouring system (1), a diversion pump shell cavity (2) and a sand core (3); the pouring system (1) comprises a sprue (11), a cross gate (12) communicated with the sprue (11) and an ingate communicated with the cross gate (12); the ingates comprise a first ingate (131), a second ingate (132), and a third ingate (133); the first ingate (131) is positioned at the upper end position in the diversion pump shell cavity (2); the second inner pouring gate (132) is positioned in the middle of the inner part of the diversion pump shell cavity (2); the third ingate (133) is positioned at the bottom end position in the cavity (2) of the diversion pump shell; and the first ingate (131), the second ingate (132) and the third ingate (133) are communicated with the cavity (2) of the guide pump shell.
2. The large scale draft pump housing casting system according to claim 1, wherein: the top end of the diversion pump shell cavity (2) is provided with at least one riser (4); and an air outlet (41) is formed in the riser (4).
3. The large scale draft pump housing casting system according to claim 1, wherein: a core rod is arranged inside the mud core (3); the core rod is wound with an air outlet rope.
4. The large scale draft pump housing casting system according to claim 1, wherein: and alcohol-based zircon powder coating is coated on the surface of the sand core (3) and the inner wall surface of the cavity (2) of the guide pump shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110748184.XA CN113458330A (en) | 2021-07-02 | 2021-07-02 | Large-scale guide pump casing casting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110748184.XA CN113458330A (en) | 2021-07-02 | 2021-07-02 | Large-scale guide pump casing casting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113458330A true CN113458330A (en) | 2021-10-01 |
Family
ID=77877331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110748184.XA Pending CN113458330A (en) | 2021-07-02 | 2021-07-02 | Large-scale guide pump casing casting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113458330A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116618582A (en) * | 2023-06-01 | 2023-08-22 | 辽宁工程技术大学 | Casting system for rocker arm shell of coal mining machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722718A (en) * | 2015-03-13 | 2015-06-24 | 宝鸡石油机械有限责任公司 | Casting method of mud pump air dome shell for bearing pressure |
| CN106216606A (en) * | 2016-08-31 | 2016-12-14 | 安徽工程大学 | A kind of independent control method controlling runner timing switching in running gate system |
| CN107159845A (en) * | 2017-07-20 | 2017-09-15 | 河北工业大学 | The casting system and its design method of a kind of elimination ZG35 valve casting defects |
| CN207255168U (en) * | 2017-07-20 | 2018-04-20 | 河北工业大学 | A kind of casting system of elimination ZG35 valve castings defects |
| CN212191117U (en) * | 2020-05-28 | 2020-12-22 | 重庆江增机械有限公司 | System for casting wind power planet carrier |
-
2021
- 2021-07-02 CN CN202110748184.XA patent/CN113458330A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722718A (en) * | 2015-03-13 | 2015-06-24 | 宝鸡石油机械有限责任公司 | Casting method of mud pump air dome shell for bearing pressure |
| CN106216606A (en) * | 2016-08-31 | 2016-12-14 | 安徽工程大学 | A kind of independent control method controlling runner timing switching in running gate system |
| CN107159845A (en) * | 2017-07-20 | 2017-09-15 | 河北工业大学 | The casting system and its design method of a kind of elimination ZG35 valve casting defects |
| CN207255168U (en) * | 2017-07-20 | 2018-04-20 | 河北工业大学 | A kind of casting system of elimination ZG35 valve castings defects |
| CN212191117U (en) * | 2020-05-28 | 2020-12-22 | 重庆江增机械有限公司 | System for casting wind power planet carrier |
Non-Patent Citations (2)
| Title |
|---|
| 张吉雁等: "大型不锈钢导流壳的铸造工艺研究及实践", 《铸造技术》 * |
| 董新民等: "大型薄壁超低碳不锈钢铸件的制造", 《铸造》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116618582A (en) * | 2023-06-01 | 2023-08-22 | 辽宁工程技术大学 | Casting system for rocker arm shell of coal mining machine |
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Legal Events
| 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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211207 Address after: 237000 No. 188, Changhuai Road, Jin'an District, Lu'an City, Anhui Province Applicant after: Anhui Heli (Lu'an) Casting Co.,Ltd. Address before: 230000 No.98 Hezhang Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant before: HEFEI CASTING & FORGING FACTORY, ANHUI HELI Co. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211001 |