CN101524745A - Casting mould for producing round ingot and casting method - Google Patents
Casting mould for producing round ingot and casting method Download PDFInfo
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- CN101524745A CN101524745A CN200910059084A CN200910059084A CN101524745A CN 101524745 A CN101524745 A CN 101524745A CN 200910059084 A CN200910059084 A CN 200910059084A CN 200910059084 A CN200910059084 A CN 200910059084A CN 101524745 A CN101524745 A CN 101524745A
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Abstract
The invention discloses a casting mould for producing a round ingot and a casting method. The inner diameter of an upper port of a mould cavity (2) of an ingot mould (1) of the casting mould is larger than that of a lower port of the mould cavity (2) of the ingot mould (1) of the casting mould. The casting method is characterized in that: speed of teeming line of the ingot body of the round ingot is between 70 and 90mm/min; and speed of stuffing line of the cap part is between 30 and 40mm/min. In the round ingot produced by the casting mould and the casting method, defects of aliquation, macroporosity, shrinkage cavity and surface crack are effectively controlled, and rejection rate of the product is greatly reduced.
Description
Technical field
The present invention relates to steel ingot and water mold and casting method, especially a kind of produce round ingot water mold and casting method.
Background technology
The product that adopts the polygon steel ingot to roll out, its surface easily forms fold defect, and the amount of repairing a die and to cut useless amount bigger, and lumber recovery is lower; In addition, the mold production process complexity of polygon steel ingot, cost is also higher.
At invention disclosed patent on the 11st CN 101195153A June in 2008, provide a kind of produce round ingot water mold and casting method.But, adopt this round ingot to water the round ingot that mold and casting method are produced, segregation, macroscopic view are loose, shrinkage cavity and surface crack defect are comparatively serious, cause the percent defective of product higher.
Summary of the invention
Technical problem to be solved by this invention provides a kind ofly can reduce that round ingot segregation, macroscopic view are loose, the production round ingot of shrinkage cavity and surface crack defect water mold and casting method.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of mold that waters of producing round ingot, the internal diameter suitable for reading of ingot mould die cavity is greater than its end opening internal diameter.
Annular is evenly equipped with 2 above molten steel rises mouths on the described ingot mould bottom end face.
The base plate of described ingot mould below be provided with ingot mould on the corresponding molten steel rises mouth of molten steel rises mouth.
Described ingot mould wall thickness is 0.12～0.15 times of die cavity internal diameter suitable for reading.
Conical hot top is equipped with in described ingot mould die cavity upper end.
Described coniform hot top internal diameter suitable for reading is less than the end opening internal diameter.
Described coniform hot top upper end wall thickness is greater than the lower end wall thickness.
The present invention produces the casting method of round ingot, and its step comprises: cast, cooling, the demoulding and level, and round ingot ingot body teeming line speed is 70～90mm/min, cap portion interstitial wire speed is 30～40mm/min.The casting liquid steel temperature is 1490～1550 ℃.The casting molten steel overheat is 20～30 ℃.
The round ingot that adopts ingot mould of the present invention and casting method to produce, its segregation, macroscopic view are loose, shrinkage cavity and surface crack defect have obtained effective control, and the percent defective of product reduces greatly.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation that waters mold that the present invention produces round ingot.
Wherein, Reference numeral: 1 is ingot mould, and 2 is the ingot mould die cavity, and 3 is the molten steel rises mouth on the ingot mould, and 4 is base plate, and 5 is the molten steel rises mouth on the base plate, and 6 is hot top, and 7 is feed trumpet.
The specific embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
As shown in Figure 1, the mold that waters that the present invention produces round ingot comprises ingot mould 1, base plate 4 and feed trumpet 7, and ingot mould 1 and feed trumpet 7 are installed on the base plate 4, and for to improve casting efficient be that the center is uniform with feed trumpet 7 on base plate 4 generally 2～8 ingot moulds 1 is installed.For the molten steel that makes ingot mould die cavity 2 internal upper parts is saved more heat, thereby be the feeding of steel ingot bottom better, to reduce loose, the shrinkage cavity of face crack and macroscopic view, so the present invention is designed to internal diameter suitable for reading greater than its end opening internal diameter with ingot mould die cavity 2.According to the intensity and the insulation requirement of die cavity 2, die cavity 2 wall thickness of ingot mould 1 are 0.12～0.15 times of die cavity 2 internal diameters suitable for reading.
In order to make the liquid steel temperature in the ingot mould die cavity 2 even, the chill thickness that molten steel solidification forms is even, reduce surface of steel ingot crackle and segregation, annular uniform 2 the above molten steel rises mouths 3 of offering on ingot mould 1 bottom end face, also offer on the base plate 4 with ingot mould 1 on molten steel rises mouth 3 corresponding molten steel rises mouths 5, the concrete quantity of molten steel rises mouth 3,5 can be determined according to the cross section of steel ingot size; During installation, the molten steel rises mouth 3 on the ingot mould 1 should align with molten steel rises mouth 5 on the base plate 4, and its coaxiality error should be less than 3mm.
In order to slow down the setting rate of steel ingot, reduce the internal stress in the steel ingot, prolong cool time, improve ingot quality, conical hot top 6 is stamped in the upper end of ingot mould die cavity 2 during the casting round ingot, and its internal diameter suitable for reading is less than the end opening internal diameter, and the upper end wall thickness is greater than the lower end wall thickness, these hot top 6 high insulating effect and easy to loading and unloading.
The present invention produces the casting method of round ingot, adopts above-mentioned ingot mould, is the method for making a bet during casting, and its step comprises: cast, cooling, the demoulding and level, above operation is traditional handicraft.But, for guaranteeing the dense internal organization of steel ingot, avoid steel ingot to produce loose and shrinkage cavity, round ingot ingot body teeming line speed is 70～90mm/min, cap portion interstitial wire speed is 30～40mm/min.Simultaneously, according to the component difference of molten steel, determine that the casting liquid steel temperature is 1490～1550 ℃.The casting molten steel overheat is 20～30 ℃, if the degree of superheat of molten steel is too big, the thermal stress in the time of can causing ingot solidification increases, thereby causes steel ingot crack defect to occur.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (10)
1, a kind of mold that waters of producing round ingot, it is characterized in that: the internal diameter suitable for reading of ingot mould (1) die cavity (2) is greater than its end opening internal diameter.
2, production round ingot according to claim 1 water mold, it is characterized in that: annular is evenly equipped with 2 above molten steel rises mouths (3) on described ingot mould (1) bottom end face.
3, production round ingot according to claim 1 water mold, it is characterized in that: the base plate (4) of described ingot mould (1) below be provided with ingot mould (1) on the corresponding molten steel rises mouth of molten steel rises mouth (3) (5).
4, production round ingot according to claim 1 water mold, it is characterized in that: described ingot mould (1) wall thickness is 0.12～0.15 times of die cavity (2) internal diameter suitable for reading.
5, production round ingot according to claim 1 water mold, it is characterized in that: conical hot top (6) is equipped with in described ingot mould (1) die cavity (2) upper end.
6, production round ingot according to claim 5 water mold, it is characterized in that: described coniform hot top (6) internal diameter suitable for reading is less than the end opening internal diameter.
7, according to the mold that waters of claim 5 or 6 described production round ingots, it is characterized in that: described coniform hot top (6) upper end wall thickness is greater than the lower end wall thickness.
8, a kind ofly adopt the casting method that mold is produced round ingot that waters as claimed in claim 1, its step comprises: cast, cooling, the demoulding and level, it is characterized in that: round ingot ingot body teeming line speed is 70～90mm/min, and cap portion interstitial wire speed is 30～40mm/min.
9, the casting method of production round ingot according to claim 8 is characterized in that: the casting liquid steel temperature is 1490～1550 ℃.
10, the casting method of production round ingot according to claim 7 is characterized in that: the casting molten steel overheat is 20～30 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910059084A CN101524745A (en) | 2009-04-27 | 2009-04-27 | Casting mould for producing round ingot and casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910059084A CN101524745A (en) | 2009-04-27 | 2009-04-27 | Casting mould for producing round ingot and casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101524745A true CN101524745A (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910059084A Pending CN101524745A (en) | 2009-04-27 | 2009-04-27 | Casting mould for producing round ingot and casting method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012174991A1 (en) * | 2011-06-20 | 2012-12-27 | Zhu Shucheng | Pouring device for liquid state molten steel |
| CN104001878A (en) * | 2014-05-22 | 2014-08-27 | 山东宝鼎重工实业有限公司 | Steel ingot water-cooling crystallization process using riser |
| CN104889350A (en) * | 2015-06-26 | 2015-09-09 | 攀钢集团成都钢钒有限公司 | Round ingot die and round ingot manufacturing method |
| CN106424610A (en) * | 2016-12-16 | 2017-02-22 | 攀枝花市蓝天锻造有限公司 | Round steel ingot pouring mould |
-
2009
- 2009-04-27 CN CN200910059084A patent/CN101524745A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012174991A1 (en) * | 2011-06-20 | 2012-12-27 | Zhu Shucheng | Pouring device for liquid state molten steel |
| CN104001878A (en) * | 2014-05-22 | 2014-08-27 | 山东宝鼎重工实业有限公司 | Steel ingot water-cooling crystallization process using riser |
| CN104001878B (en) * | 2014-05-22 | 2017-01-04 | 山东宝鼎重工实业有限公司 | One has rising head steel ingot water-cooled crystallization processes |
| CN104889350A (en) * | 2015-06-26 | 2015-09-09 | 攀钢集团成都钢钒有限公司 | Round ingot die and round ingot manufacturing method |
| CN106424610A (en) * | 2016-12-16 | 2017-02-22 | 攀枝花市蓝天锻造有限公司 | Round steel ingot pouring mould |
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Open date: 20090909 |