Title:
CASTING EQUIPMENT AND CASTING METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2014/142597
Kind Code:
A1
Abstract:
The present invention relates to casting equipment for producing a casting with a large cross-section for a very thick steel material and a casting method using the same, and the casting equipment includes: a casting part with a passage for a molten steel for casting the molten steel into a casting; a support part arranged separately from the casting part for receiving and supporting the casting in at least one of the sides of the casting; and a solidifying part arranged outside the casting provided with a first quality control device for solidifying the casting, whereby the casting method includes the steps of: preparing a molten steel for casting; casting the molten steel in the casting part with the passage opened or closed into a casting; conveying the casting to the solidifying part; and conveying the solidified casting to a subsequent process so as to improve the quality of the casting, thus increasing substantially the yield rate of castings. In addition, the molten steel is continuously stirred through the quality control device and a solidification inducement device from the start of casting to the end of solidifying the casting so as to enhance the equiaxed surface ratio of the casting, and decrease segregation/porosity and the internal defects such as a pipe generated at an end of the casting. Also, when producing a casting with a large cross-section for a very thick steel material, the casting part can produce another casting continuously while the previous casting is solidified in the solidifying part, thus saving the time consumed for solidifying the casting for a very thick steel material by means of the continuous solidifying part. This prevents the casting process from being stopped, thereby enhancing the productivity of a casting and the efficiency of the casting equipment.
Inventors:
OH KYUNG SHIK (KR)
LEE JOO DONG (KR)
CHOI JEONG YUN (KR)
KIM SUNG JOOL (KR)
LEE JOO DONG (KR)
CHOI JEONG YUN (KR)
KIM SUNG JOOL (KR)
Application Number:
PCT/KR2014/002153
Publication Date:
September 18, 2014
Filing Date:
March 14, 2014
Export Citation:
Assignee:
POSCO (KR)
International Classes:
B22D11/12; B22D7/06; B22D11/10; B22D11/20
Foreign References:
| KR20100139059A | 2010-12-31 | |||
| KR20100085748A | 2010-07-29 | |||
| JPH0740019A | 1995-02-10 | |||
| KR20100025929A | 2010-03-10 | |||
| KR20090065995A | 2009-06-23 |
Other References:
See also references of EP 2974810A4
None
None
Attorney, Agent or Firm:
NAM, SEUNG-HEE (KR)
남승희 (KR)
남승희 (KR)
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