JPS55148713A - Production of high silicon spring steel of superior fatigue resistance - Google Patents

Production of high silicon spring steel of superior fatigue resistance

Info

Publication number
JPS55148713A
JPS55148713A JP5604979A JP5604979A JPS55148713A JP S55148713 A JPS55148713 A JP S55148713A JP 5604979 A JP5604979 A JP 5604979A JP 5604979 A JP5604979 A JP 5604979A JP S55148713 A JPS55148713 A JP S55148713A
Authority
JP
Japan
Prior art keywords
molten steel
amount
gas
ladle
production
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
JP5604979A
Other languages
Japanese (ja)
Other versions
JPS607001B2 (en
Inventor
Kiyoshi Shiaku
Hirofumi Sugawara
Jiro Koarai
Kunio Ishimitsu
Matsuhide Aoki
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP54056049A priority Critical patent/JPS607001B2/en
Publication of JPS55148713A publication Critical patent/JPS55148713A/en
Publication of JPS607001B2 publication Critical patent/JPS607001B2/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE: To accelerate the reaction of Si deoxidation and reduce the amount of large-size inclusions such as of calcia base and alumina base by adding a silicon deoxidizer into the molten steel in a ladle then controlling the slag to basicity and stirring the molten steel by blowing Ar gas therein thereby accelerating Si deoxidation reaction.
CONSTITUTION: A silicon deoxidizer (e.g., ferrosilicon of low Al low Ti) is added into the molten steel 3 in a ladle 1, after which the basicity of the slag is controlled to preferably about 2 or more. Next, a cover 2 is placed on the ladle 1 and the spacing at the top surface of the molten steel 3 is made Ar gas atmosphere. At the same time, Ar gas or the premelt flux containing CaO; 50W90%, Al2O3; 10W30% and CaF2; 5W40% together with the Ar gas is blown through the lance 4 immersed in the molten steel, whereby the molten steel 3 is stirred. According to this method, the low oxygen steel of 0 amount about 40ppm (total 0 amount) or less is obtained and since oxidizers such as Ca, Al are not used, the amount of non-ductile and nearly spherical inclusions may be considerably reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP54056049A 1979-05-07 1979-05-07 Manufacturing method for high-silicon spring steel with excellent fatigue resistance Expired JPS607001B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54056049A JPS607001B2 (en) 1979-05-07 1979-05-07 Manufacturing method for high-silicon spring steel with excellent fatigue resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54056049A JPS607001B2 (en) 1979-05-07 1979-05-07 Manufacturing method for high-silicon spring steel with excellent fatigue resistance

Publications (2)

Publication Number Publication Date
JPS55148713A true JPS55148713A (en) 1980-11-19
JPS607001B2 JPS607001B2 (en) 1985-02-21

Family

ID=13016220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54056049A Expired JPS607001B2 (en) 1979-05-07 1979-05-07 Manufacturing method for high-silicon spring steel with excellent fatigue resistance

Country Status (1)

Country Link
JP (1) JPS607001B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5899606U (en) * 1981-12-28 1983-07-06 東芝機械株式会社 Measuring device
JPS62227029A (en) * 1986-03-28 1987-10-06 Sumitomo Metal Ind Ltd Production of clean steel
CN103060509A (en) * 2012-03-31 2013-04-24 上海梅山钢铁股份有限公司 High-silicon molten iron smelting method
CN113502372A (en) * 2021-05-26 2021-10-15 山东鲁丽钢铁有限公司 Rapid white slag making material for 120tLF refining furnace and process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61234302A (en) * 1985-04-10 1986-10-18 Hino Motors Ltd Wheel alignment gauge attachment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5899606U (en) * 1981-12-28 1983-07-06 東芝機械株式会社 Measuring device
JPH0233122Y2 (en) * 1981-12-28 1990-09-06
JPS62227029A (en) * 1986-03-28 1987-10-06 Sumitomo Metal Ind Ltd Production of clean steel
JPH0469207B2 (en) * 1986-03-28 1992-11-05 Sumitomo Kinzoku Kogyo Kk
CN103060509A (en) * 2012-03-31 2013-04-24 上海梅山钢铁股份有限公司 High-silicon molten iron smelting method
CN113502372A (en) * 2021-05-26 2021-10-15 山东鲁丽钢铁有限公司 Rapid white slag making material for 120tLF refining furnace and process

Also Published As

Publication number Publication date
JPS607001B2 (en) 1985-02-21

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