CN207372263U - The antigravity feeding shell structure of heat resisting steel volute process for suction casting - Google Patents
The antigravity feeding shell structure of heat resisting steel volute process for suction casting Download PDFInfo
- Publication number
- CN207372263U CN207372263U CN201721510403.6U CN201721510403U CN207372263U CN 207372263 U CN207372263 U CN 207372263U CN 201721510403 U CN201721510403 U CN 201721510403U CN 207372263 U CN207372263 U CN 207372263U
- Authority
- CN
- China
- Prior art keywords
- casting
- feeding
- roads
- zhi
- suction inlet
- 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.)
- Active
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a kind of antigravity feeding shell structures of heat resisting steel volute process for suction casting, it is related to Special Processes of Metal Castings technical field, the suction function that the structure passes through the acclivitous interior suction inlet Ji Zhixi roads from shell mould around to center, feeding can be carried out to casting by the antigravity effect of molten steel under conditions of no riser, improve feeding efficiency, cast-internal shrinkage porosity defect of contraction cavity is effectively solved, leakage in casting is prevented, ensures casting quality.This structure design ensure that the rising of molten steel is fallen after rise so that filling type stage molten steel can smoothly rise, and solidification packing stage molten steel is strengthened molten steel in feeding and pressure release stage Zhi Xi roads and fallen after rise rapidly.The structure design according to casting, interior suction inlet, Zhi Xi roads consecutive solidification principle, enhance the feeding capacity of casting.The pressure release after casting solidification feeding, molten steel reflux, only stays the interior suction inlet feeding neck of very little, increases substantially product yield so as to reach, the purpose for rate of reducing the number of rejects and seconds in Zhi Xi roads.
Description
Technical field
The utility model is related to Special Processes of Metal Castings technical fields, and specifically, the utility model is related to a kind of heat resisting steel volutes
The antigravity feeding shell structure of process for suction casting.
Background technology
With the development of vehicle turbine supercharging technology, the rotating speed of petrol engine requirement turbocharger is higher and higher, gives up
Gas air inflow increases, this necessarily causes supercharger volute operating temperature to increase, and up to 1100 DEG C or more, this is to Worm gear pressurizing unit scroll
Used heat-resisting material proposes high requirement.The material of Worm gear pressurizing unit scroll currently on the market is with middle high silicon molybdenum ball
Based on iron, high-Ni-Cr cast iron, this kind of 800~900 DEG C of material heat resisting temperature, oneself is gradually not suitable with novel energy-saving petrol engine
Technical quality requirement.Automobile is become using New Heat-Resistant Steel material substitution high temperature resistant Cast Iron Production automobile turbocharger volute
Manufacturing developing direction and vehicle structure lightweight, Engine Downsizing inevitable choice.
It is complicated due to heat resisting steel volute, in three-dimension curved surface streamline construction, only several kilograms of quality, the main wall thickness of volute
4~5mm, and wall thickness became uneven, casting quality requirement is high, is not allow for any casting flaw, to pass through fluorescence PT, RT and visit
Triage is surveyed；The solidification shrinkage of heat resisting steel material is big, and molten steel flow is poor, and Production Practice of Casting Technologies is poor, and casting is also easy to produce stomata, folder
The casting flaws such as slag, shrinkage cavity shrinkage porosity.Using Conventional gravity Foundry Production heat resisting steel volute, pouring temperature is at 1600 DEG C or more, one
Mould 2 or one-mold multiple-member are, it is necessary to the main riser of feeding is larger, and one big 1 or 2 casting of riser feeding, product yield
Down to 20~30%, for casting yield down to below 60~80%, production cost is high, it is difficult to meet customer requirement.
Utility model content
The utility model is mainly solving the technical problems that provide a kind of antigravity of heat resisting steel volute process for suction casting
Feeding shell structure can improve feeding efficiency, increase substantially product yield to more than 60~80%.
To achieve the above object, the utility model provides following technical solution：
The antigravity feeding shell structure of the heat resisting steel volute process for suction casting includes shell mould body, shell mould body interior
Zhi Xi roads, interior suction inlet and multiple cavities are equipped with, is equipped with buffer part at the top of Zhi Xi roads, all cavities are directly inhaled respectively by interior suction inlet
Road is connected with outer suction inlet, and multiple cavities are distributed around Zhi Xi roads circumference radial symmetric, and outer suction inlet is communicated with Zhi Xi roads, Zhi Xi roads
It is connected with all interior suction inlets, interior suction inlet is connected with cavity.
As the further optimization of the technical program, it by cavity is upwards α with the angle of horizontal plane that the interior suction inlet, which is, and
30°≤α≤60°。
As the further optimization of the technical program, the size of the interior suction inlet is designed just solidifies feeding with test casting
Terminating pressure release is advisable.
It is using the advantageous effect of above technical scheme：The antigravity feeding shell mould of the heat resisting steel volute process for suction casting
Structure can pass through molten steel by the suction function by the acclivitous interior suction inlet Ji Zhixi roads of cavity on the premise of no riser
Antigravity effect carries out feeding to casting, improves feeding efficiency, effectively solves cast-internal shrinkage porosity defect of contraction cavity, prevent in casting
Leakage ensures casting quality.The pressure release after casting solidification feeding, molten steel reflux, only stays the interior suction inlet of very little to mend in Zhi Xi roads
Necking down increases substantially product yield so as to reach, the purpose for rate of reducing the number of rejects and seconds.
Description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the sectional view of the antigravity feeding shell structure of the heat resisting steel volute process for suction casting；
Fig. 2 is the sectional view of the A-A of Fig. 1.
Wherein, 1- shell moulds body, 2- Zhi Xi roads, 21- buffer parts, the outer suction inlet of suction inlet, 4- cavities, 41- sand cores, 5- in 3-.
Specific embodiment
The antigravity feeding shell mould of the utility model heat resisting steel volute process for suction casting is described in detail below in conjunction with the accompanying drawings
The preferred embodiment of structure.
With reference to Fig. 1 and Fig. 2, the antigravity feeding shell structure of the heat resisting steel volute process for suction casting includes shell mould body
1,1 inside of shell mould body is equipped with Zhi Xi roads 2, interior suction inlet 3 and multiple cavities 4, and 2 top of Zhi Xi roads is equipped with buffer part 21, is used for
Inhale the reduced velocity flow of cast steel liquid.All cavities 4 are connected respectively by interior 3 Zhi Xi roads of suction inlet, 2 outer suction inlet 5, and multiple cavities 4 surround
The distribution of Zhi Xi roads 2 circumference radial symmetrics, cavity 4 set 2 or multiple, and outer suction inlet 5 is communicated with Zhi Xi roads 2, Zhi Xi roads 2 with it is all interior
Suction inlet 3 connects, and interior suction inlet 3 is connected with cavity 4.
Interior suction inlet 3 is α with the angle of horizontal plane upwards by cavity, and 30 °≤α≤60 °, the size of interior suction inlet 3 design with
Test casting, which just solidifies feeding, which terminates pressure release, is advisable.
Claims (2)
1. a kind of antigravity feeding shell structure of heat resisting steel volute process for suction casting, it is characterised in that：The heat resisting steel whirlpool
The antigravity feeding shell structure of shell process for suction casting includes shell mould body (1), and shell mould body (1) inside is equipped with Zhi Xi roads
(2), interior suction inlet (3) and multiple cavities (4) are equipped with buffer part (21) at the top of Zhi Xi roads (2), all cavities (4) are respectively by straight
It inhales road (2) and corresponding interior suction inlet (3) is connected with outer suction inlet (5), and multiple cavities (4) surround Zhi Xi roads (2) circumference footpath
To symmetrical, outer suction inlet (5) communicates with Zhi Xi roads (2), and Zhi Xi roads (2) are connected with all interior suction inlets (3), interior suction inlet (3) with
Cavity (4) connects.
2. the antigravity feeding shell structure of heat resisting steel volute process for suction casting according to claim 1, feature exist
In：The interior suction inlet (3) and the angle of horizontal plane are α, are and 30 °≤α≤60 ° upward by cavity (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721510403.6U CN207372263U (en) | 2017-10-30 | 2017-10-30 | The antigravity feeding shell structure of heat resisting steel volute process for suction casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721510403.6U CN207372263U (en) | 2017-10-30 | 2017-10-30 | The antigravity feeding shell structure of heat resisting steel volute process for suction casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207372263U true CN207372263U (en) | 2018-05-18 |
Family
ID=62333144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721510403.6U Active CN207372263U (en) | 2017-10-30 | 2017-10-30 | The antigravity feeding shell structure of heat resisting steel volute process for suction casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207372263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719277A (en) * | 2017-10-30 | 2019-05-07 | 科华控股股份有限公司 | The anti-gravity feeding shell structure of heat resisting steel volute process for suction casting |
-
2017
- 2017-10-30 CN CN201721510403.6U patent/CN207372263U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719277A (en) * | 2017-10-30 | 2019-05-07 | 科华控股股份有限公司 | The anti-gravity feeding shell structure of heat resisting steel volute process for suction casting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100364693C (en) | Casting method for exhaust branch pipe of thin-wall ball iron triplet | |
| CN108705034B (en) | A kind of alloy cast iron cylinder sleeve casting method | |
| CN104399881B (en) | The casting method of low-speed diesel for large-bore vessel bearing block steel-casting | |
| CN104475682A (en) | Combined wax pattern-based method of achieving precision investment casting for heat-resistant cast steel thin-wall turbine shell | |
| CN102554130B (en) | Casting method for high-nickel austenite nodular cast iron exhaust manifold | |
| CN103480804B (en) | A kind of casting method without chill marine diesel cylinder cover | |
| CN105903912A (en) | Novel pouring die structure for cast-steel double-suction impeller | |
| CN104493095A (en) | Pouring system and pouring method of thin-wall casting | |
| CN106001507A (en) | Low-pressure casting process for turbine shell of turbocharger | |
| CN207372263U (en) | The antigravity feeding shell structure of heat resisting steel volute process for suction casting | |
| CN108356234A (en) | The plane vertical pouring shell structure of thick big high-Ni-Cr cast iron volute | |
| CN106141088A (en) | A kind of metal mold gravity casting method and casting mould | |
| CN110238347B (en) | Casting system for lost foam casting cam shaft | |
| CN109719277A (en) | The anti-gravity feeding shell structure of heat resisting steel volute process for suction casting | |
| CN109877297A (en) | A kind of anti-gravity feeding shell structure of heat resisting steel volute process for suction casting | |
| CN107052242A (en) | The combined type casting method that a kind of diecasting and model casting are combined | |
| CN110238360A (en) | The high temperature alloy pressure casting mold and casting process of a kind of impeller, guide vane | |
| CN203764902U (en) | Casting mold for solid cam shaft | |
| CN106166607A (en) | The suction pouring device of cast magnesium alloy | |
| CN203737935U (en) | Impeller mould casing | |
| CN208976754U (en) | Template for flywheel sand casting vertical casting | |
| CN207971389U (en) | The plane vertical pouring shell structure of thick big high-Ni-Cr cast iron volute | |
| CN206543872U (en) | The special casting mould of low pressure molding | |
| CN207900154U (en) | A kind of Novel sand-core with negative pressure exhaust structure | |
| CN107363221A (en) | A kind of casting technique of planet carrier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |