CN104624958A - Aluminum alloy impeller centrifuge casting method - Google Patents
Aluminum alloy impeller centrifuge casting method Download PDFInfo
- Publication number
- CN104624958A CN104624958A CN201310541233.8A CN201310541233A CN104624958A CN 104624958 A CN104624958 A CN 104624958A CN 201310541233 A CN201310541233 A CN 201310541233A CN 104624958 A CN104624958 A CN 104624958A
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- CN
- China
- Prior art keywords
- impeller
- melting
- preheating
- wax
- shell
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- 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.)
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Classifications
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- 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
- B22C9/04—Use of lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Dental Prosthetics (AREA)
Abstract
The invention discloses an aluminum alloy impeller centrifuge casting method. The method comprises the following steps: making an impeller wax mold; preheating the wax mold; carrying out tool treatment; melting alloy selected for an impeller; melting Al7Si aluminum ingots; adding an Al-5Ti intermediate alloy, and melting; adding a pure Mg block, and melting; adding an Al-10Sr intermediate alloy, and melting; adding the Al-10Sr intermediate alloy into a graphite crucible, stirring a melt in the graphite crucible, and carrying out degassing refining; and carrying out centrifuge casting to realize mold filling and solidification of the above alloy melt under the action of centrifugal force, solidifying for a certain period of time, demolding, and cleaning the obtained casting. The problems of high production cost of present casting methods, and poor quality and low dimension precision of the surfaces of castings are solved in the invention.
Description
Technical field
The invention belongs to casting technology field, be specifically related to a kind of centrifugal casting method of aluminum alloy impeller.
Background technology
The size of casting to impeller of aluminum alloy impeller has higher requirement, and current flange pouring technology exists the problem that production cost is high and surface quality of continuous castings is poor, dimensional accuracy is low.
Summary of the invention
In order to overcome the above-mentioned technical problem that prior art field exists, the object of the invention is to, a kind of centrifugal casting method of aluminum alloy impeller is provided, solving existing casting method and there is the problem that production cost is high and surface quality of continuous castings is poor, dimensional accuracy is low.
Centrifugal casting method of aluminum alloy impeller provided by the invention, comprises the following steps:
(1) prepare impeller wax-pattern: prepare impeller wax-pattern according to the shape of impeller, size, after then hanging sand, dewaxing being carried out to impeller wax-pattern, obtain shell of impeller;
(2) wax-pattern preheating: the shell of impeller obtained in step one is put into resistance furnace preheating, preheat temperature is 400 ~ 500 DEG C, and preheating time is 2 ~ 4 hours;
(3) instrument process: the tool surfaces contacted with aluminium liquid in casting smelting is brushed water based paint, above-mentioned water based paint is zinc oxide, talcum powder and water glass solution, then above-mentioned instrument is put into resistance furnace to dry, bake out temperature is 300 ~ 400 DEG C, and drying time is 2 ~ 4 hours;
(4) spun casting: the shell of impeller after preheating in step (2) is fixed on centrifugal casting machine, start centrifugal casting machine, the rotating speed controlling centrifugal casting machine is 500 ~ 1500r/min, then the alloy molten solution that melting in step (3) obtains is poured in the shell of impeller of rotation, above-mentioned alloy molten solution is made to fill type under the influence of centrifugal force, solidify, setting time is 3 ~ 15 minutes, finally demould, cleaning foundry goods.
Centrifugal casting method of aluminum alloy impeller provided by the invention, its beneficial effect is, overcomes operation in prior art process more, the problem that workload is large, improves production efficiency; Avoid because of the defective mass defect caused of impeller size processing, utilization rate of raw materials is high, reduces production cost; Solve existing casting method and there is the problem that production cost is high and surface quality of continuous castings is poor, dimensional accuracy is low.
Detailed description of the invention
Below in conjunction with an embodiment, centrifugal casting method of aluminum alloy impeller provided by the invention is described in detail.
Embodiment
The centrifugal casting method of aluminum alloy impeller of the present embodiment, comprises the following steps:
(1) prepare impeller wax-pattern: prepare impeller wax-pattern according to the shape of impeller, size, after then hanging sand, dewaxing being carried out to impeller wax-pattern, obtain shell of impeller;
(2) wax-pattern preheating: the shell of impeller obtained in step one is put into resistance furnace preheating, preheat temperature is 450 DEG C, and preheating time is 4 hours;
(3) instrument process: the tool surfaces contacted with aluminium liquid in casting smelting is brushed water based paint, above-mentioned water based paint is zinc oxide, talcum powder and water glass solution, then above-mentioned instrument is put into resistance furnace to dry, bake out temperature is 350 DEG C, and drying time is 3 hours;
(4) spun casting: the shell of impeller after preheating in step (2) is fixed on centrifugal casting machine, start centrifugal casting machine, the rotating speed controlling centrifugal casting machine is 1000r/min, then the alloy molten solution that melting in step (3) obtains is poured in the shell of impeller of rotation, above-mentioned alloy molten solution is made to fill type under the influence of centrifugal force, solidify, setting time is 10 minutes, finally demould, cleaning foundry goods.
Centrifugal casting method of aluminum alloy impeller, can directly cast out aluminum alloy impeller foundry goods, and without the need to machining, operation is simple, and the finished product cast size cast out is accurate, effectively ensure that casting quality.
Claims (1)
1. a centrifugal casting method of aluminum alloy impeller, is characterized in that: said method comprising the steps of:
(1) prepare impeller wax-pattern: prepare impeller wax-pattern according to the shape of impeller, size, after then hanging sand, dewaxing being carried out to impeller wax-pattern, obtain shell of impeller;
(2) wax-pattern preheating: the shell of impeller obtained in step one is put into resistance furnace preheating, preheat temperature is 400 ~ 500 DEG C, and preheating time is 2 ~ 4 hours;
(3) instrument process: the tool surfaces contacted with aluminium liquid in casting smelting is brushed water based paint, above-mentioned water based paint is zinc oxide, talcum powder and water glass solution, then above-mentioned instrument is put into resistance furnace to dry, bake out temperature is 300 ~ 400 DEG C, and drying time is 2 ~ 4 hours;
(4) spun casting: the shell of impeller after preheating in step (2) is fixed on centrifugal casting machine, start centrifugal casting machine, the rotating speed controlling centrifugal casting machine is 500 ~ 1500r/min, then the alloy molten solution that melting in step (3) obtains is poured in the shell of impeller of rotation, above-mentioned alloy molten solution is made to fill type under the influence of centrifugal force, solidify, setting time is 3 ~ 15 minutes, finally demould, cleaning foundry goods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310541233.8A CN104624958A (en) | 2013-11-06 | 2013-11-06 | Aluminum alloy impeller centrifuge casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310541233.8A CN104624958A (en) | 2013-11-06 | 2013-11-06 | Aluminum alloy impeller centrifuge casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104624958A true CN104624958A (en) | 2015-05-20 |
Family
ID=53204457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310541233.8A Pending CN104624958A (en) | 2013-11-06 | 2013-11-06 | Aluminum alloy impeller centrifuge casting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104624958A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959571A (en) * | 2015-06-17 | 2015-10-07 | 陈文建 | Titanium alloy forging method |
| CN104959572A (en) * | 2015-06-17 | 2015-10-07 | 陈文建 | Forging method of aluminum alloy |
| CN112157218A (en) * | 2020-10-09 | 2021-01-01 | 马鞍山方圆动力科技有限公司 | Special narrow groove precision casting method for blade |
| CN113798445A (en) * | 2021-09-08 | 2021-12-17 | 老河口市宇骏精密机械有限公司 | Manufacturing method of aluminum cylinder of shock absorber |
-
2013
- 2013-11-06 CN CN201310541233.8A patent/CN104624958A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959571A (en) * | 2015-06-17 | 2015-10-07 | 陈文建 | Titanium alloy forging method |
| CN104959572A (en) * | 2015-06-17 | 2015-10-07 | 陈文建 | Forging method of aluminum alloy |
| CN112157218A (en) * | 2020-10-09 | 2021-01-01 | 马鞍山方圆动力科技有限公司 | Special narrow groove precision casting method for blade |
| CN113798445A (en) * | 2021-09-08 | 2021-12-17 | 老河口市宇骏精密机械有限公司 | Manufacturing method of aluminum cylinder of shock absorber |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |
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| WD01 | Invention patent application deemed withdrawn after publication |