CN102451901A - Vacuum cast molding process and vacuum casting die assembly thereof - Google Patents
Vacuum cast molding process and vacuum casting die assembly thereof Download PDFInfo
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- CN102451901A CN102451901A CN2010105172400A CN201010517240A CN102451901A CN 102451901 A CN102451901 A CN 102451901A CN 2010105172400 A CN2010105172400 A CN 2010105172400A CN 201010517240 A CN201010517240 A CN 201010517240A CN 102451901 A CN102451901 A CN 102451901A
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Abstract
The invention relates to a vacuum cast molding process and a vacuum casting die assembly thereof. Molten steel enters a steel ingot die from a ladle through a central casting pipe, and is solidified and molded in the steel ingot die. The vacuum cast molding process is characterized in that: the molten steel enters the steel ingot die from a hole at the bottom of the steel ingot die through the central casting pipe connected with the lower part of the ladle after flowing through the ladle. Due to the adoption of the technical scheme, the molten steel is solidified from the periphery to the center, gradually advances to the upper part, and is finally solidified into an entire steel ingot. The casting mode has the outstanding advantages that: the solidifying form of the molten steel in the die is changed, and iquid molten steel is kept at the central position of the die for a long time in the solidifying process and is always communicated with the molten steel on a feeder head part, so that a good feeding function is achieved; the defects of loosening, shrinkage cavities and the like in the center of a cast ingot are effectively transferred to the feeder head part, so that the defects of loosening, shrinkage cavities and the like in the center of the cast ingot are overcome, the subsequent forging process is easy to operate, and the yield is greatly increased.
Description
Technical field
The present invention relates to a kind of metallurgical technology, especially a kind of vacuum casting moulding process and vacuum casting die assembly thereof.
Background technology
The technology of conventional vacuum induction furnace teeming is injected the goods that obtain anticipated shape in the ingot mould after the condensation to molten metal liquid from ladle through the vacuum casting die assembly, is at present to adopt the casting mode of annotating that goes up; As shown in Figure 1; The vacuum casting die assembly comprises shunting disk 1 and ingot mould 2, and shunting disk 1 is provided with and drops down 3, and molten steel is gone into shunting disk 1 from ladle and flowed into ingot mould 2 through dropping down 3; Molten steel is suitable for reading to the ingot mould bottom from ingot mould; The ingot mould bottom is airtight, and molten steel solidification is upwards progressively carried out by the ingot mould bottom, and final set becomes whole steel ingot.This casting mode is easy to be shaped, but exists Ingot Surface Quality relatively poor, and ingot casting heart portion forms defectives such as loose shrinkage cavity easily.Ingot Surface Quality is relatively poor to be owing to adopt this casting mode; Molten steel can be splashed to the surface of ingot mould behind impact ingot mould bottom under the gravity effect; The ingot mould surface temperature is lower, and these drops solidify rapidly after being splashed to the ingot mould surface, behind the molten steel solidification that arrives soon after; There is the interface between the two, causes blemish.Heart portion is loose to be because this kind casting mode is solidified by the integral body form of solidifying and undertaken with shrinkage cavity; Because setting rate is very fast relatively; At the molten steel of steel ingot heart location and the molten steel of rising head position; Along with the carrying out that solidifies can not keep connecting always, emit the molten steel of notch portion just can not play the effect of feeding, thereby produce internal shrinkage and defective such as loosen the solidification shrinkage of heart portion molten steel.These defectives add trade union to the forging in road afterwards and produce fatal influence, cause forging crack, can not become a useful person, thereby cause whole stove steel to be scrapped.
Summary of the invention
To above-mentioned existing problems, the present invention provides a kind of vacuum casting moulding process, adopts casting process down, through the improvement of casting die assembly and technology, thereby improves steel ingot casting quality.
In order to reach above purpose, the present invention takes following technical scheme, a kind of vacuum casting moulding process; Molten steel gets into ingot mould from ladle through dropping down, and molten steel is coagulation forming in ingot mould, it is characterized in that: said molten steel is behind ladle; Feed trumpet through being connected under the gravity effect with the ladle bottom; Flow through and drop down, get into ingot mould by ingot mould bottom hole, molten steel waters full ingot mould and reaches rising head upper position after coagulation.
Because the present invention relates to and taked above technical scheme, molten steel is behind ladle, through the feed trumpet that is connected with the ladle bottom; Get into ingot mould by ingot mould bottom hole; Molten steel solidification is carried out to the center by periphery, and progressively passes to top, finally is frozen into whole steel ingot.The outstanding advantage of this casting mode is to have changed the solidify form of molten steel in mould; Make that the mold center position maintains liquid molten steel in the long time in the process of setting, and can keep always with rising head in molten steel be communicated with, thereby play good feeding effect; The defectives such as loose and shrinkage cavity of ingot casting heart portion are effectively transferred to the rising head position; Thereby eliminated ingot casting heart portion loose with defective such as shrinkage cavity, make follow-up forging process be easy to carry out, improved lumber recovery greatly.
Description of drawings
Fig. 1 is a top casting mode vacuum casting die assembly structural representation
Fig. 2 is casting mode vacuum casting die assembly structural representation under the present invention
1, ladle 2, ingot mould 3, drop down 4, feed trumpet 5, hot top
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Embodiment one
A kind of vacuum casting moulding process; Molten steel gets into ingot mould from ladle 1 through dropping down 3, and molten steel is coagulation forming in ingot mould, it is characterized in that: said molten steel is behind ladle; Feed trumpet through being connected under the gravity effect with the ladle bottom; Flow through and drop down, get into ingot mould by ingot mould bottom hole, molten steel waters full ingot mould and reaches rising head upper position after coagulation.
The outstanding advantage of this casting mode is to have changed the solidify form of molten steel in mould; Make that the mold center position maintains liquid molten steel in the long time in the process of setting, and keep being communicated with, thereby play good feeding effect in the molten steel that emits notch portion; The defectives such as loose and shrinkage cavity of ingot casting heart portion are effectively transferred to the rising head position; Thereby eliminated ingot casting heart portion loose with defective such as shrinkage cavity, make follow-up forging process be easy to carry out, improved lumber recovery greatly.
Embodiment two
As shown in Figure 2, the vacuum casting die assembly of vacuum casting moulding process of the present invention comprises ladle 1 and ingot mould 2, and said ladle 1 time is feed trumpet 4 even, and feed trumpet 4 is connected with ingot mould 2 bottoms through dropping down 3.Molten steel gets into from the ingot mould bottom and arrives ingot mould, and is suitable for reading until hot top 5.
Embodiment three
With a kind of vacuum casting die assembly of embodiment two, its difference is: said ingot mould has one at least.
Embodiment four
With a kind of vacuum casting moulding process of embodiment two, its difference is: said ingot mould has when a plurality of, and being distributed in the feed trumpet is on the same circumference at center.
Embodiment five
With a kind of vacuum casting moulding process of embodiment two, its difference is: distance equates between said adjacent steel ingot mould.
Except that the foregoing description, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (5)
1. vacuum casting moulding process; Molten steel gets into ingot mould from the ladle feed trumpet of flowing through, and molten steel is coagulation forming in ingot mould, it is characterized in that: said molten steel is behind ladle; Through the feed trumpet that is connected with the ladle bottom, get into ingot mould by ingot mould bottom hole.
2. a vacuum casting die assembly that adopts the described vacuum casting moulding process of claim 1 comprises ladle and ingot mould, it is characterized in that: connect feed trumpet under the said ladle, feed trumpet is connected through dropping down with the ingot mould bottom.
3. a kind of vacuum casting die assembly according to claim 2 is characterized in that: said ingot mould has one at least.
4. a kind of vacuum casting die assembly according to claim 3 is characterized in that: said ingot mould has when a plurality of, and being distributed in the feed trumpet is on the same circumference at center.
5. a kind of vacuum casting die assembly according to claim 4 is characterized in that: distance equates between said adjacent steel ingot mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105172400A CN102451901A (en) | 2010-10-25 | 2010-10-25 | Vacuum cast molding process and vacuum casting die assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105172400A CN102451901A (en) | 2010-10-25 | 2010-10-25 | Vacuum cast molding process and vacuum casting die assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102451901A true CN102451901A (en) | 2012-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105172400A Pending CN102451901A (en) | 2010-10-25 | 2010-10-25 | Vacuum cast molding process and vacuum casting die assembly thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102451901A (en) |
Cited By (2)
| 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 |
| CN114101637A (en) * | 2022-01-05 | 2022-03-01 | 安徽富凯特材有限公司 | Casting device for electroslag remelting and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2289629Y (en) * | 1996-02-09 | 1998-09-02 | 包头钢铁公司冶金研究所 | Asymmetric bottom pouring single-layer flat bottom plate |
| CN1584096A (en) * | 2004-06-11 | 2005-02-23 | 宝钢集团上海五钢有限公司 | Production of clean high carbon chromic bearing steel |
| CN101011734A (en) * | 2007-01-16 | 2007-08-08 | 李正鼎 | Mould for manufacturing clad steel and clad plate and casting process |
| CN201067795Y (en) * | 2007-05-25 | 2008-06-04 | 丹阳市精密合金厂 | Vacuum induction smelting steel ingot casting component |
| CN101804535A (en) * | 2010-03-25 | 2010-08-18 | 河北五维航电科技有限公司 | Method for preparing parent metal of nuclear-electric welding material with ultrahigh purity |
| CN201832983U (en) * | 2010-10-25 | 2011-05-18 | 丹阳市精密合金厂有限公司 | Vacuum casting mold assembly |
-
2010
- 2010-10-25 CN CN2010105172400A patent/CN102451901A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2289629Y (en) * | 1996-02-09 | 1998-09-02 | 包头钢铁公司冶金研究所 | Asymmetric bottom pouring single-layer flat bottom plate |
| CN1584096A (en) * | 2004-06-11 | 2005-02-23 | 宝钢集团上海五钢有限公司 | Production of clean high carbon chromic bearing steel |
| CN101011734A (en) * | 2007-01-16 | 2007-08-08 | 李正鼎 | Mould for manufacturing clad steel and clad plate and casting process |
| CN201067795Y (en) * | 2007-05-25 | 2008-06-04 | 丹阳市精密合金厂 | Vacuum induction smelting steel ingot casting component |
| CN101804535A (en) * | 2010-03-25 | 2010-08-18 | 河北五维航电科技有限公司 | Method for preparing parent metal of nuclear-electric welding material with ultrahigh purity |
| CN201832983U (en) * | 2010-10-25 | 2011-05-18 | 丹阳市精密合金厂有限公司 | Vacuum casting mold assembly |
Cited By (2)
| 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 |
| CN114101637A (en) * | 2022-01-05 | 2022-03-01 | 安徽富凯特材有限公司 | Casting device for electroslag remelting and application thereof |
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Application publication date: 20120516 |