CN203401045U - Fan impeller casting die - Google Patents
Fan impeller casting die Download PDFInfo
- Publication number
- CN203401045U CN203401045U CN201320392800.3U CN201320392800U CN203401045U CN 203401045 U CN203401045 U CN 203401045U CN 201320392800 U CN201320392800 U CN 201320392800U CN 203401045 U CN203401045 U CN 203401045U
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- China
- Prior art keywords
- core
- fan impeller
- die
- casting
- draught fan
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Abstract
The utility model discloses a fan impeller casting die belonging to the technical field of metal mold and sand mold combined casting dies. The fan impeller casting die is characterized in that core dies are fixed in the centers of an upper die and a lower die through a locating mandrel; the locating mandrel is fixedly connected with the lower die; the lower core die, a shaft sleeve which is provided with a groove in the circumferential direction and the upper core die are sequentially sleeved on the locating mandrel and are fastened by using nuts. Casting chambers which are same as the curved surface of a fan impeller in appearance are respectively formed between the upper die and the lower die as well as between the upper core die and the lower core die; the upper core die is provided with a sprue gate. The fan impeller casting die is poured by using a metal mold and sand mold combined structure, so that the casting defects such as sand holes, shrinkage porosity and rough surfaces of castings cast in the traditional wood pattern foundry casting way are avoided; in addition, a steel jacket inlaid inside the fan impeller is specifically processed so that steel and aluminum are combined seamlessly, and the quality of the fan impeller casting die is improved.
Description
Technical field
The utility model relates to a kind of draught fan impeller casting mould, belongs to the casting mould technical field that metal pattern and sand mo(u)ld combine.
Background technology
Draught fan impeller is the vitals in locomotive heat-exchanger rig, in production process in the past, adopts sand casting more, and its cast(ing) surface is coarse, exist the dynamic balance of sand holes, product poor, and subsequent production processing cost is high, thereby affects the normal operation of heat-exchanger rig.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the utility model object is to provide a kind of draught fan impeller casting mould, according to the design feature of product, the structure that adopts metal mold to combine with sand mold is poured into a mould this product, avoided adopting wooden model foundry casting in the past, caused foundry goods to have the casting flaws such as sand holes, shrinkage porosite, rough surface; In addition, steel bushing is inlayed in draught fan impeller inside and carry out specially treated, make steel aluminium in conjunction with seamless, improve the quality of products.
The technical scheme of the novel employing of this Shi Lu is: a kind of draught fan impeller casting mould, it mainly comprises upper die and lower die and core, described core comprises a upper core and a lower core, adopts a positioning core axle core to be fixed on to the middle position of upper die and lower die; Described positioning core axle is fixedly connected with counterdie, lower core, the axle sleeve that is circumferentially with Baltimore groove and upper core is enclosed within on positioning core axle successively, with fastening nuts; Between described patrix and counterdie and be prefabricated with the casting cavity identical with the curved surface of draught fan impeller profile between upper core and lower core, on upper core, be provided with sprue gate.
On described patrix, be provided with vertical row vent plug with fan blade casting cavity opposite position.
In the bottom annular groove of described lower core, be provided with a chill.
The metal pattern that described upper die and lower die adopt HT250 to make.
The core that described upper core and lower core adopt resin sand to make.
The utility model beneficial effect is: this draught fan impeller casting mould adopts positioning core axle core to be fixed on to the middle position of upper die and lower die, positioning core axle is fixedly connected with counterdie, lower core, the axle sleeve that is circumferentially with Baltimore groove and upper core are enclosed within on positioning core axle successively, use fastening nuts.Between patrix and counterdie and be prefabricated with the casting cavity identical with the curved surface of draught fan impeller profile between upper core and lower core, on upper core, be provided with sprue gate.Because the structure that adopts metal mold to combine with sand mold is poured into a mould this product, avoided adopting wooden model foundry casting in the past, cause foundry goods to have the casting flaws such as sand holes, shrinkage porosite, rough surface; In addition, steel bushing is inlayed in draught fan impeller inside and carry out specially treated, make steel aluminium in conjunction with seamless, improve the quality of products.
Accompanying drawing explanation
Fig. 1 is draught fan impeller casting mould structure figure.
In figure: 1, patrix, 2, draught fan impeller casting cavity, 3, upper core, 4, sprue gate, 5, positioning core axle, 6, locking nut, 7, axle sleeve, 8, venting plug, 9, lower core, 10, chill, 11, counterdie.
embodiment
Below in conjunction with accompanying drawing 1, the utility model is described in further detail:
As shown in Figure 1, this draught fan impeller casting mould mainly comprises a patrix 1, counterdie 11 and core, the metal pattern that patrix 1 and counterdie 11 are made for HT250.Core comprises a upper core 3 and a lower core 9, the core that upper core 3 and lower core 9 are made for resin sand.Positioning core axle 5 is fixedly connected with counterdie 11, and lower core 9, the axle sleeve 7 that is circumferentially with Baltimore groove and upper core 3 are enclosed within on positioning core axle 5 successively, fastening with locking nut 6.Between patrix 1 and counterdie 11 and be prefabricated with the casting cavity 2 identical with the curved surface of draught fan impeller profile between upper core 3 and lower core 9, on patrix 1, be provided with vertical row vent plug 8 with draught fan impeller casting cavity 2 opposite positions, in the bottom annular groove of lower core 9, be provided with a chill 10, on upper core 3, be provided with sprue gate 4.
The casting technique that above-mentioned casting mould adopts is as follows:
The first step: axle sleeve 7 is put into sulfuric acid and corrode, remove surface and oil contaminant and corrosion, then the surface roughness of ball blast, removal stress, change inserts, is conducive to the combination of iron aluminium; Pour into a mould to put in insulating box for first 2 hours and be preheating to 250 ℃;
Second step: will be preheating to 200-250 ℃, draught fan impeller casting cavity before patrix 1, counterdie 11 cast
2 interior graphite spraying breasts;
The 3rd step: counterdie 11 is set level, with positioning core axle 5 location, packed into core system under lower core 9(
Time put into chill);
The 4th step: with positioning core axle 5 location, pack preheated axle sleeve 7 into;
The 5th step: with upper surface and positioning core axle 5 location of axle sleeve 7, pack core 3 into again;
The 6th step: upper core 3, lower core 9 are locked with locking nut 6;
The 7th step: by patrix 1, counterdie 11 matched moulds;
The 8th step: by after the scarfing cinder of aluminium water, degasification, be heated to 740-750 ℃, simultaneously in 4 cast of two cast gates;
The 9th step: die sinking after being incubated 40 minutes, sand removal.
Result of implementation is: tensile strength >=145Mpa; Percentage elongation >=2%, HBS hardness >=50; Foundry goods is without casting flaws such as sand holes, shrinkage porosites; Size conforms drawing requirement; The monolateral residual unbalance, of dynamic balancing is less than 700mg.
The utility model advantage is: because the structure that adopts metal mold to combine with sand mold is poured into a mould this product, avoided adopting wooden model foundry casting in the past, caused foundry goods to have the casting flaws such as sand holes, shrinkage porosite, rough surface; In addition, steel bushing is inlayed in draught fan impeller inside and carry out specially treated, make steel aluminium in conjunction with seamless, improve the quality of products.
Claims (5)
1. a draught fan impeller casting mould, it mainly comprises a patrix (1), counterdie (11) and core, it is characterized in that: described core comprises a upper core (3) and a lower core (9), adopts a positioning core axle (5) core to be fixed on to the middle position of patrix (1) and counterdie (11); Described positioning core axle (5) is fixedly connected with counterdie (11), lower core (9), the axle sleeve (7) that is circumferentially with Baltimore groove and upper core (3) is enclosed within to positioning core axle (5) successively upper, fastening with locking nut (6); Between described patrix (1) and counterdie (11) and be prefabricated with the casting cavity (2) identical with the curved surface of draught fan impeller profile between upper core (3) and lower core (9), on upper core (3), be provided with sprue gate (4).
2. according to a kind of draught fan impeller casting mould claimed in claim 1, it is characterized in that: described patrix (1) is gone up and draught fan impeller casting cavity (2) opposite position is provided with vertical row vent plug (8).
3. according to a kind of draught fan impeller casting mould claimed in claim 1, it is characterized in that: in the bottom annular groove of described lower core (9), be provided with a chill (10).
4. according to a kind of draught fan impeller casting mould claimed in claim 1, it is characterized in that: the metal pattern that described patrix (1) and counterdie (11) adopt HT250 to make.
5. according to a kind of draught fan impeller casting mould claimed in claim 1, it is characterized in that: the core that described upper core (3) and lower core (9) adopt resin sand to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320392800.3U CN203401045U (en) | 2013-07-03 | 2013-07-03 | Fan impeller casting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320392800.3U CN203401045U (en) | 2013-07-03 | 2013-07-03 | Fan impeller casting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203401045U true CN203401045U (en) | 2014-01-22 |
Family
ID=49936988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320392800.3U Expired - Fee Related CN203401045U (en) | 2013-07-03 | 2013-07-03 | Fan impeller casting die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203401045U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109822050A (en) * | 2019-04-15 | 2019-05-31 | 浙江欧冶达机械制造股份有限公司 | Form good casting die |
| CN110076298A (en) * | 2019-03-15 | 2019-08-02 | 启东市聚旺铸造有限公司 | A kind of shell manufacturing process being poured double shrouded wheel |
| CN111299512A (en) * | 2018-12-11 | 2020-06-19 | 无锡众鑫模具科技有限公司 | Water pump impeller casting and production process thereof |
| CN117346952A (en) * | 2023-08-30 | 2024-01-05 | 湖北三峰透平装备股份有限公司 | Device and method for correcting dynamic balance of fan impeller |
-
2013
- 2013-07-03 CN CN201320392800.3U patent/CN203401045U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111299512A (en) * | 2018-12-11 | 2020-06-19 | 无锡众鑫模具科技有限公司 | Water pump impeller casting and production process thereof |
| CN110076298A (en) * | 2019-03-15 | 2019-08-02 | 启东市聚旺铸造有限公司 | A kind of shell manufacturing process being poured double shrouded wheel |
| CN109822050A (en) * | 2019-04-15 | 2019-05-31 | 浙江欧冶达机械制造股份有限公司 | Form good casting die |
| CN117346952A (en) * | 2023-08-30 | 2024-01-05 | 湖北三峰透平装备股份有限公司 | Device and method for correcting dynamic balance of fan impeller |
| CN117346952B (en) * | 2023-08-30 | 2024-03-22 | 湖北三峰透平装备股份有限公司 | Device and method for correcting dynamic balance of fan impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20180703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |