JPS56127725A - Preparation of low phosphorus high chromium steel - Google Patents

Preparation of low phosphorus high chromium steel

Info

Publication number
JPS56127725A
JPS56127725A JP2911880A JP2911880A JPS56127725A JP S56127725 A JPS56127725 A JP S56127725A JP 2911880 A JP2911880 A JP 2911880A JP 2911880 A JP2911880 A JP 2911880A JP S56127725 A JPS56127725 A JP S56127725A
Authority
JP
Japan
Prior art keywords
steel
molten
low phosphorus
prepare
molten metal
Prior art date
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.)
Granted
Application number
JP2911880A
Other languages
Japanese (ja)
Other versions
JPS5952926B2 (en
Inventor
Kazuo Kitamura
Yoshiyuki Iwanami
Mitsunori Funazaki
Tomoo Takenouchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Steel Works Ltd
Original Assignee
Japan Steel Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Japan Steel Works Ltd filed Critical Japan Steel Works Ltd
Priority to JP55029118A priority Critical patent/JPS5952926B2/en
Publication of JPS56127725A publication Critical patent/JPS56127725A/en
Publication of JPS5952926B2 publication Critical patent/JPS5952926B2/en
Expired legal-status Critical Current

Links

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  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE: To prepare the low phosphorus high Cr steel by carrying out the melting of a high Cr steel and the dephosphorization thereof and the mxing with a low phosphorus steel in a separate container respectively.
CONSTITUTION: A ferrochrome, a waste iron or the like are molten in an arc furnace to prepare a molten metal of the high Cr steel. Subsequently, said molten metal is transferred into a laddle and, after a molten slag is removed, the ladle is covered by a lid to form an inert gas atmosphere such as an Ar atmosphere therein. CaC2 or a Ca alloy such as a Ca-Si, a Ca-Al or a Ni-Ca alloy is added from a lance pipe immersed in said molten metal to dephosphorize the high Cr molten steel. On the other hand, the high Cr molten steel subjected to the above described dephosphorization treatment is added to the low phosphorus molten steel having been prepared in a separate arc furnace from a nozzle of a ladle bottom and, after sufficient mixing, heated to a higher temp., subjected to light decarburization treatment and component adjustment and, further, the final decarburization and the component adjustment are carried out in a VOD furnace to enable to prepare the extremely low phosphours high Cr steel with a P content of below 0.010% at a low cost compared to a conventional method.
COPYRIGHT: (C)1981,JPO&Japio
JP55029118A 1980-03-10 1980-03-10 Manufacturing method of low phosphorus high chromium steel Expired JPS5952926B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55029118A JPS5952926B2 (en) 1980-03-10 1980-03-10 Manufacturing method of low phosphorus high chromium steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55029118A JPS5952926B2 (en) 1980-03-10 1980-03-10 Manufacturing method of low phosphorus high chromium steel

Publications (2)

Publication Number Publication Date
JPS56127725A true JPS56127725A (en) 1981-10-06
JPS5952926B2 JPS5952926B2 (en) 1984-12-22

Family

ID=12267389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55029118A Expired JPS5952926B2 (en) 1980-03-10 1980-03-10 Manufacturing method of low phosphorus high chromium steel

Country Status (1)

Country Link
JP (1) JPS5952926B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938320A (en) * 1982-08-28 1984-03-02 Kawasaki Steel Corp Method for mixing molten metal to refine high alloy steel
JP2010280942A (en) * 2009-06-03 2010-12-16 Nippon Yakin Kogyo Co Ltd Method for manufacturing low-phosphorus stainless steel
JP2011214125A (en) * 2010-04-02 2011-10-27 Nippon Steel Corp Method for decarburizing chromium-containing steel by blowing oxygen
CN104862577A (en) * 2014-10-14 2015-08-26 长春工业大学 Method for manufacturing high-nitrogen steel by utilization of carbon-containing ferrochrome

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222506A (en) * 1975-08-15 1977-02-19 Nippon Steel Corp Process for removal of impurities of metals or alloys
JPS52153819A (en) * 1976-06-16 1977-12-21 Nippon Steel Corp Refining molten alloy or metal
JPS531620A (en) * 1976-06-28 1978-01-09 Nippon Steel Corp Production of high chromium steel
JPS54146209A (en) * 1978-05-09 1979-11-15 Japan Steel Works Ltd Production of alloy steel
JPS54158320A (en) * 1978-06-03 1979-12-14 Nippon Steel Corp Refining method for high chromium steel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222506A (en) * 1975-08-15 1977-02-19 Nippon Steel Corp Process for removal of impurities of metals or alloys
JPS52153819A (en) * 1976-06-16 1977-12-21 Nippon Steel Corp Refining molten alloy or metal
JPS531620A (en) * 1976-06-28 1978-01-09 Nippon Steel Corp Production of high chromium steel
JPS54146209A (en) * 1978-05-09 1979-11-15 Japan Steel Works Ltd Production of alloy steel
JPS54158320A (en) * 1978-06-03 1979-12-14 Nippon Steel Corp Refining method for high chromium steel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938320A (en) * 1982-08-28 1984-03-02 Kawasaki Steel Corp Method for mixing molten metal to refine high alloy steel
JPS6223043B2 (en) * 1982-08-28 1987-05-21 Kawasaki Steel Co
JP2010280942A (en) * 2009-06-03 2010-12-16 Nippon Yakin Kogyo Co Ltd Method for manufacturing low-phosphorus stainless steel
JP2011214125A (en) * 2010-04-02 2011-10-27 Nippon Steel Corp Method for decarburizing chromium-containing steel by blowing oxygen
CN104862577A (en) * 2014-10-14 2015-08-26 长春工业大学 Method for manufacturing high-nitrogen steel by utilization of carbon-containing ferrochrome

Also Published As

Publication number Publication date
JPS5952926B2 (en) 1984-12-22

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