CN109175262A - A kind of production method of combination type blade wheel sand core - Google Patents
A kind of production method of combination type blade wheel sand core Download PDFInfo
- Publication number
- CN109175262A CN109175262A CN201811364581.1A CN201811364581A CN109175262A CN 109175262 A CN109175262 A CN 109175262A CN 201811364581 A CN201811364581 A CN 201811364581A CN 109175262 A CN109175262 A CN 109175262A
- Authority
- CN
- China
- Prior art keywords
- bulk
- breaking
- core
- sand core
- sand
- 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
Classifications
-
- 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
- B22C9/28—Moulds for peculiarly-shaped castings for wheels, rolls, or rollers
-
- 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
- B22C9/103—Multipart cores
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention relates to a kind of production methods of combination type blade wheel sand core.Production method of the invention establishes component model, is cut into component model in parts bulk-breaking model to blade forming region along center；Combined core box made of processing is surrounded as multiple core box bulk-breakings, the inner cavity work shape face of combined core box and the shape of bulk-breaking model match；Sand core bulk-breaking identical with impeller blade number to be processed is made by combined core box, and polishing and coating application are carried out to the forming area of each sand core bulk-breaking；Each sand core bulk-breaking is surrounded and is tied up and is fixed into the sand core component that central cavity and impeller size to be processed match.Sand core production method of the invention carries out coating application, polishing conveniently to sand core type chamber, ensure that the surface quality of impeller product, extend the service life of sand core.
Description
Technical field
The present invention relates to a kind of production methods of combination type blade wheel sand core, belong to pump vane casting field.
Background technique
Impeller belongs to the core part of pump, is formed using forging type.It is required that its size meets design requirement, blade thickness
Uniformly, surface is smooth, zero defect.Can the quality of Impeller Mass is directly related to whole pump operation parameter meet design requirement.
When processing impeller, first have to process the sand core that interior shape and impeller shape match, then by the metal material of molten state
Material pours into the inner cavity of sand core, takes out product after curing molding.The sand core of casting impeller is to determine whether impeller size meets to set
Count desired key.
The sand core of traditional fabrication impeller is to use monolithic construction, as shown in Figure 1, processing one first when processing sand core
With the consistent metal pattern of impeller product structure, metal pattern is located in the core box for being provided with cylindrical cavity, then to core box
Inner cavity is packed into molding sand and extracts metal pattern from molding sand out when molding sand is not fully cured, then after waiting molding sand to be fully cured etc.
To casting sand core.Since the blade of impeller is usually at distorted shape, when metal pattern is extracted from molding sand, blade, which is obstructed, to be easy to damage
Sand core makes blade forming region deformation in sand core type chamber, to influence the blade waterpower shape after casting, is unable to satisfy blade water
The requirement of power size.In addition, for guarantee cast(ing) surface smoothness, and change after casting can from the intracavitary smooth extraction of sand core type,
Before pouring into the metal material of molten state to sand core type chamber, the inner wall to sand core type chamber is needed polish and brushing paint；
However since blade is relatively thin, blade forming regional space is narrow in sand core type chamber, to type the chamber polishing of inner wall and coating herein
Surface quality that is more difficult, and then influencing casting after solidifying is brushed, the service life of sand core is reduced.
Summary of the invention
The purpose of the present invention is for the production method that solves conventional impellers sand core, that there are sand core type chambers is easily-deformable, inner wall polishing
And coating application is difficult, so that product surface quality is influenced, the short problem of sand core service life.A kind of combined type leaf is provided thus
The production method for taking turns sand core.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of production method of combination type blade wheel sand core of the invention, specifically the production method is as follows:
Component model is initially set up, component model is the cylinder that center is provided with to the type chamber that matches with impeller size to be processed
Body structure；
Then component model is cut into parts along center to blade forming region identical as impeller blade number to be processed
Bulk-breaking model；
Combined core box made of reprocessing is surrounded as multiple core box bulk-breakings, the inner cavity work shape face of combined core box and bulk-breaking mould
The shape of type matches, and the upper end of combined core box is provided with into sand channel；
By the full inner cavity for surrounding fixed combined core box by each core box bulk-breaking of molding sand filling, the shape after molding sand solidified forming
At sand core bulk-breaking, combined core box is split into each core box bulk-breaking, sand core bulk-breaking is taken out；
Sand core bulk-breaking identical with impeller blade number to be processed is made by combined core box, and to each sand core bulk-breaking
Forming area carries out polishing and coating application；
Each sand core bulk-breaking is surrounded and is tied up and is fixed into the sand core conjunction that central cavity and impeller size to be processed match
Part.
Beneficial effect
Combination type blade wheel sand core production method of the invention is avoided by way of making sand core bulk-breaking recombinant respectively
Production monoblock type sand core is extracting the problem of metal pattern is to damage sand core；The sand core made of the method for the present invention, to type
Chamber progress coating application, polishing are all very convenient, ensure that the surface quality of impeller product；After casting impeller, by disassembling sand core
Component takes out product, harmless to sand core, extends the service life of sand core；Part can be carried out to sand core component breakage to replace
It changes, reduces sand mold maintenance cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of monoblock type impeller sand core；
Fig. 2 is that component model splits schematic diagram in production method of the present invention；
Fig. 3 is the structural schematic diagram of bulk-breaking model in production method of the present invention；
Fig. 4 is the structural schematic diagram of combined core box in production method of the present invention.
Specific embodiment
The contents of the present invention are further described with reference to the accompanying drawings and examples:
Embodiment
A kind of production method of combination type blade wheel sand core of the invention, specifically the production method is as follows:
Component model is initially set up, component model is the cylinder that center is provided with to the type chamber that matches with impeller size to be processed
Body structure, as shown in Figure 2；
Then component model is cut into parts along center to blade forming region identical as impeller blade number to be processed
Bulk-breaking model, as shown in Figure 3；
Combined core box made of reprocessing is surrounded as multiple core box bulk-breakings, the inner cavity work shape face of combined core box and bulk-breaking mould
The shape of type matches, and the upper end of combined core box is provided with into sand channel, as shown in Figure 4；
By the full inner cavity for surrounding fixed combined core box by each core box bulk-breaking of molding sand filling, the shape after molding sand solidified forming
At sand core bulk-breaking, combined core box is split into each core box bulk-breaking, sand core bulk-breaking is taken out；
Sand core bulk-breaking identical with impeller blade number to be processed is made by combined core box, and to each sand core bulk-breaking
Blade forming region carries out polishing and coating application；
Each sand core bulk-breaking is surrounded and is tied up and is fixed into the sand core conjunction that central cavity and impeller size to be processed match
Part.
The combined core box of embodiment production is subjected to pump vane casting, obtained impeller product, outer dimension and surface matter
Amount meets design requirement.
Claims (1)
1. a kind of production method of combination type blade wheel sand core, it is characterized in that: specifically the production method is as follows:
Component model is initially set up, component model is the cylindrical body knot that center is provided with to the type chamber that matches with impeller size to be processed
Structure；
Then component model is cut into parts and identical point of impeller blade number to be processed along center to blade forming region
Part model；
Combined core box made of reprocessing is surrounded as multiple core box bulk-breakings, inner cavity work shape face and the bulk-breaking model of combined core box
Shape matches, and the upper end of combined core box is provided with into sand channel；
By the full inner cavity for surrounding fixed combined core box by each core box bulk-breaking of molding sand filling, sand is formed after molding sand solidified forming
Combined core box is split into each core box bulk-breaking, sand core bulk-breaking is taken out by core bulk-breaking；
Sand core bulk-breaking identical with impeller blade number to be processed, and the molding to each sand core bulk-breaking are made by combined core box
Region carries out polishing and coating application；
Each sand core bulk-breaking is surrounded and is tied up and is fixed into the sand core component that central cavity and impeller size to be processed match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811364581.1A CN109175262A (en) | 2018-11-16 | 2018-11-16 | A kind of production method of combination type blade wheel sand core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811364581.1A CN109175262A (en) | 2018-11-16 | 2018-11-16 | A kind of production method of combination type blade wheel sand core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109175262A true CN109175262A (en) | 2019-01-11 |
Family
ID=64940184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811364581.1A Pending CN109175262A (en) | 2018-11-16 | 2018-11-16 | A kind of production method of combination type blade wheel sand core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109175262A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586874A (en) * | 2019-10-28 | 2019-12-20 | 襄阳五二五泵业有限公司 | Manufacturing method of integral impeller sand core |
| CN111136223A (en) * | 2020-01-07 | 2020-05-12 | 浙江精恒铜业股份有限公司 | Impeller casting process method |
| CN113059124A (en) * | 2021-03-30 | 2021-07-02 | 陕西荣宝机械电子有限公司 | Preparation method of mold core of closed twisted blade |
| CN114393177A (en) * | 2022-01-25 | 2022-04-26 | 烟台路通精密科技股份有限公司 | Casting process and device of large thin-wall aluminum alloy supercharging impeller |
| CN114799049A (en) * | 2022-03-30 | 2022-07-29 | 西安航天发动机有限公司 | Processing die and method of sand core for variable cross-section blade casting of aerospace liquid engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203437596U (en) * | 2013-07-15 | 2014-02-19 | 广州广一泵业有限公司 | Laminating sand core and casting mold for forming pump impeller and mold for forming laminating sand core insert |
| CN105598384A (en) * | 2016-01-29 | 2016-05-25 | 刘士超 | Precoated sand casting method for submerged pump impeller |
| CN108015226A (en) * | 2016-04-22 | 2018-05-11 | 河北临泉泵业集团有限公司 | The production method of precoated sand submersible pump impeller blade sand mold |
-
2018
- 2018-11-16 CN CN201811364581.1A patent/CN109175262A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203437596U (en) * | 2013-07-15 | 2014-02-19 | 广州广一泵业有限公司 | Laminating sand core and casting mold for forming pump impeller and mold for forming laminating sand core insert |
| CN105598384A (en) * | 2016-01-29 | 2016-05-25 | 刘士超 | Precoated sand casting method for submerged pump impeller |
| CN108015226A (en) * | 2016-04-22 | 2018-05-11 | 河北临泉泵业集团有限公司 | The production method of precoated sand submersible pump impeller blade sand mold |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586874A (en) * | 2019-10-28 | 2019-12-20 | 襄阳五二五泵业有限公司 | Manufacturing method of integral impeller sand core |
| CN111136223A (en) * | 2020-01-07 | 2020-05-12 | 浙江精恒铜业股份有限公司 | Impeller casting process method |
| CN113059124A (en) * | 2021-03-30 | 2021-07-02 | 陕西荣宝机械电子有限公司 | Preparation method of mold core of closed twisted blade |
| CN114393177A (en) * | 2022-01-25 | 2022-04-26 | 烟台路通精密科技股份有限公司 | Casting process and device of large thin-wall aluminum alloy supercharging impeller |
| CN114799049A (en) * | 2022-03-30 | 2022-07-29 | 西安航天发动机有限公司 | Processing die and method of sand core for variable cross-section blade casting of aerospace liquid engine |
| CN114799049B (en) * | 2022-03-30 | 2024-02-09 | 西安航天发动机有限公司 | Processing die and method for sand core for variable-section blade casting of aerospace liquid engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109175262A (en) | A kind of production method of combination type blade wheel sand core | |
| CN107350429B (en) | A kind of mixing primary and secondary cored-up mould technique | |
| CN108044053B (en) | A kind of narrow flow road double shrouded wheel fine casting method | |
| CN104308114B (en) | A kind of centrifugal casting process of barrel structure castings | |
| CN107138683A (en) | A kind of sand core structure of turbine blade steel-casting | |
| CN107962154B (en) | A kind of forming method of large revolving body casting | |
| CN103100669A (en) | Valve body combined casting process for sluice valve with flange casting bolt hole | |
| CN108723296B (en) | A kind of manufacturing method in Powered Propulsion middle section peculiar to vessel | |
| CN104722716B (en) | A kind of complex thin-wall sand core forming method | |
| CN102672113A (en) | Method for pouring copper alloy neck mould of glass mould by using single resin sand box | |
| CN102825214B (en) | Method for manufacturing mold casing of flanging pouring cup in investment casting process | |
| CN108453220A (en) | The casting method of outer shell casting is pressed in a kind of steam turbine ultra supercritical | |
| KR102090793B1 (en) | A Mold end Manufacturing Method for the Cylinder Block of Construction Machinery | |
| CN103894553A (en) | Integral impeller casting process of narrow-sprue centrifugal pump and impeller mould case | |
| CN110586874A (en) | Manufacturing method of integral impeller sand core | |
| CN204220934U (en) | A kind of many valve gated molds | |
| CN102441640B (en) | Casting mold and molding method thereof | |
| CN105598384A (en) | Precoated sand casting method for submerged pump impeller | |
| CN104209495A (en) | Sand mold casting sprue tooling | |
| CN103042172A (en) | Upward gas discharge method of lower sand core of complicate connected cast | |
| CN205414322U (en) | Taper sleeve foundry sand mould | |
| CN207386481U (en) | A kind of molding die for being used to process water riser | |
| CN109396338A (en) | The mold and casting technique cast for liner plate under the crusher that suspends | |
| CN201752755U (en) | Mold for manufacturing wax patterns | |
| CN108672658A (en) | A kind of thrust power water inlet end pieces precision casting process method peculiar to vessel |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190111 |