CN1778493A - Cap agent with light alkaline particle steel coating - Google Patents

Cap agent with light alkaline particle steel coating Download PDF

Info

Publication number
CN1778493A
CN1778493A CNA2004100843367A CN200410084336A CN1778493A CN 1778493 A CN1778493 A CN 1778493A CN A2004100843367 A CNA2004100843367 A CN A2004100843367A CN 200410084336 A CN200410084336 A CN 200410084336A CN 1778493 A CN1778493 A CN 1778493A
Authority
CN
China
Prior art keywords
steel coating
cap agent
alkaline particle
particle steel
ladle
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
CNA2004100843367A
Other languages
Chinese (zh)
Other versions
CN100446895C (en
Inventor
徐永斌
王兆达
丁劲光
徐兵
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.)
SHANGHAI BAOYI THERMAL-INSULATION MATERIAL Co Ltd
Original Assignee
SHANGHAI BAOYI THERMAL-INSULATION MATERIAL Co 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 SHANGHAI BAOYI THERMAL-INSULATION MATERIAL Co Ltd filed Critical SHANGHAI BAOYI THERMAL-INSULATION MATERIAL Co Ltd
Priority to CNB2004100843367A priority Critical patent/CN100446895C/en
Publication of CN1778493A publication Critical patent/CN1778493A/en
Application granted granted Critical
Publication of CN100446895C publication Critical patent/CN100446895C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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

Abstract

A light-weight alkaline particle used as the covering agent of steel ladle contains siO2 (18-26 Wt%), CaO (26-34), MgO (6-12), Al2O3 (5-8), Fe2O3 (0.5-2.0), and stabilized C (18-26). Its advantages are low specific bulk weight, high insulating performance, and high effect to prevent oxidization of molten steel and decrease the corrosion to refractory of ladle.

Description

A kind of cap agent with light alkaline particle steel coating
Technical field
The present invention relates to a kind of ladle covering agent, particularly a kind of cap agent with light alkaline particle steel coating.
Background technology
The basic steel covering agent bulk density that adopts both at home and abroad is bigger at present, though have the performance of certain dross inclusion adsorption, heat insulation effect is not good.Though have a heat-insulating property preferably and acid chrome black covering agent bulk density is less, cause secondary oxidation of steel easily, and acid coverture can cause erosion to the anti-material of alkaline ladle.
Summary of the invention
The purpose of this invention is to provide a kind of alkaline granule steel ladle covering agent that reducible oxide-based composition content is low, bulk density is little that has.The present invention designs a kind of cap agent with light alkaline particle steel coating, it is characterized in that having following constituent and percentage by weight to constitute: SiO 218%～26%; CaO26%～34%; MgO6%～12%; Al 2O 35%～8%; Fe 2O 30.5%～2%; Fixed carbon 18%～26%.Bulk density is 0.4～0.7g/cm 3Advantage of the present invention is: the bulk density of coverture is little, has good heat-insulating property; And containing higher fixed carbon, the heat that can utilize its chemical reaction to produce further remedies the heat loss of molten steel, improves heat insulation effect; Fusing point is suitable, can form three layers of melting structure rapidly, and reducible oxide-based composition content is low, can prevent secondary oxidation of steel; Basicity CaO/SiO 21.1～1.8, have field trash ability in certain absorption molten steel, can not corrode the ladle basic refractory, help prolonging the bag age of ladle.
Concrete mode
Below in conjunction with embodiment the present invention is elaborated:
Embodiment 1: get SiO 225 kilograms, CaO31 kilogram, MgO10 kilogram, Al 2O 37.5 kilogram, Fe 2O 31.5 kilogram, 25 kilograms in fixed carbon.Be mixed into 100 kilograms of mixtures, add suitable quantity of water and mix thoroughly and be baked to moisture less than 1% after making the particle of Φ 8～10mm * 8～25mm by extruder grain, packing again after the screening.
Embodiment 2: get SiO 222 kilograms, CaO33 kilogram, MgO11 kilogram, Al 2O 37 kilograms, Fe 2O 31 kilogram, 26 kilograms in fixed carbon.Be mixed into 100 kilograms of mixtures, add suitable quantity of water and mix thoroughly and be baked to moisture less than 1% after making the particle of Φ 8～10mm * 8～25mm by extruder grain, packing again after the screening.This coverture forms three-decker rapidly after adding ladle during use.Because the bulk density of coverture is little, has good heat-insulating property; And contain higher fixed carbon, and utilize the heat of its chemical reaction generation, can further remedy the heat loss of molten steel, improve heat insulation effect; Because reducible oxide-based composition content is low, can prevent secondary oxidation of steel; Because coverture is an alkalescence, can not corrode the ladle basic refractory, helps prolonging the bag age of ladle.

Claims (2)

1, a kind of cap agent with light alkaline particle steel coating is characterized in that having following constituent and percentage by weight to constitute:
SiO 2?18％～26％，
CaO?26％～34％，
MgO?6％～12％，
Al 2O 3?5％～8％，
Fe 2O 3?0.5％～2％，
Fixed carbon 18%～26%.
2, by the described a kind of cap agent with light alkaline particle steel coating of claim 1, it is characterized in that: the bulk density of cap agent with light alkaline particle steel coating is 0.4～0.7g/cm 3
CNB2004100843367A 2004-11-18 2004-11-18 Cap agent with light alkaline particle steel coating Expired - Fee Related CN100446895C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2004100843367A CN100446895C (en) 2004-11-18 2004-11-18 Cap agent with light alkaline particle steel coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2004100843367A CN100446895C (en) 2004-11-18 2004-11-18 Cap agent with light alkaline particle steel coating

Publications (2)

Publication Number Publication Date
CN1778493A true CN1778493A (en) 2006-05-31
CN100446895C CN100446895C (en) 2008-12-31

Family

ID=36769025

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004100843367A Expired - Fee Related CN100446895C (en) 2004-11-18 2004-11-18 Cap agent with light alkaline particle steel coating

Country Status (1)

Country Link
CN (1) CN100446895C (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100371105C (en) * 2006-08-25 2008-02-27 重庆大学 Molten steel covering agent and its preparation method
CN101892332A (en) * 2010-07-05 2010-11-24 北京科技大学 Energy-saving slag thermal insulator
CN102643955A (en) * 2012-05-11 2012-08-22 西峡县兴宝冶金保温耐材有限公司 Method for producing iron ladle or steel ladle rare residue heat preservation agent by using coal gangue
CN104017937A (en) * 2013-03-02 2014-09-03 太原钢铁(集团)有限公司 Micro carbon alkaline particle covering agent and production method thereof
CN105328150A (en) * 2015-11-18 2016-02-17 武汉钢铁(集团)公司 Heating type particulate molten steel thermal insulation agent and preparation method thereof
TWI664297B (en) * 2018-10-26 2019-07-01 中國鋼鐵股份有限公司 Thermal insulation covering agent for molten steel and manufacturing method thereof
CN112570676A (en) * 2020-11-12 2021-03-30 安阳钢铁股份有限公司 Method for producing high-carbon steel by double-flow slab continuous casting machine
CN115229146A (en) * 2022-08-08 2022-10-25 山东莱钢永锋钢铁有限公司 Method for improving alkalinity of steel slag in tundish of continuous casting machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926246A (en) * 1972-09-18 1975-12-16 Scm Corp Flux for continuous casting of steel
JPS55141514A (en) * 1979-04-19 1980-11-05 Koji Uchida Molten steel surface covering agent utilizing chiefly slag produced at refining of mg and a
JPS595058B2 (en) * 1979-06-30 1984-02-02 新日本製鐵株式会社 Granular powder for continuous steel casting
JPS57202950A (en) * 1981-06-06 1982-12-13 Nippon Steel Corp Mold additive for continuous casting
CN1151901C (en) * 2001-02-23 2004-06-02 上海宝谊保温材料有限公司 Alkaline granule steel ladle covering agent
CN2476337Y (en) * 2001-04-10 2002-02-13 上海宝谊保温材料有限公司 Hollow cylindrical granular steel cladding cover agent
CN1257783C (en) * 2001-11-06 2006-05-31 上海宝谊保温材料有限公司 Double-layered alkali grain covering agent for middle ladle
CN1257031C (en) * 2002-12-31 2006-05-24 上海宝谊保温材料有限公司 Carbonless prremelt hollow type alkali pouring basket covering agent

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100371105C (en) * 2006-08-25 2008-02-27 重庆大学 Molten steel covering agent and its preparation method
CN101892332A (en) * 2010-07-05 2010-11-24 北京科技大学 Energy-saving slag thermal insulator
CN102643955A (en) * 2012-05-11 2012-08-22 西峡县兴宝冶金保温耐材有限公司 Method for producing iron ladle or steel ladle rare residue heat preservation agent by using coal gangue
CN104017937A (en) * 2013-03-02 2014-09-03 太原钢铁(集团)有限公司 Micro carbon alkaline particle covering agent and production method thereof
CN104017937B (en) * 2013-03-02 2015-10-28 太原钢铁(集团)有限公司 A kind of micro-carbon alkali grain insulating covering agent and production method thereof
CN105328150A (en) * 2015-11-18 2016-02-17 武汉钢铁(集团)公司 Heating type particulate molten steel thermal insulation agent and preparation method thereof
TWI664297B (en) * 2018-10-26 2019-07-01 中國鋼鐵股份有限公司 Thermal insulation covering agent for molten steel and manufacturing method thereof
CN112570676A (en) * 2020-11-12 2021-03-30 安阳钢铁股份有限公司 Method for producing high-carbon steel by double-flow slab continuous casting machine
CN115229146A (en) * 2022-08-08 2022-10-25 山东莱钢永锋钢铁有限公司 Method for improving alkalinity of steel slag in tundish of continuous casting machine

Also Published As

Publication number Publication date
CN100446895C (en) 2008-12-31

Similar Documents

Publication Publication Date Title
CN104226947B (en) A kind of tundish covering flux used for ultra-low-carbon steel
CN1778493A (en) Cap agent with light alkaline particle steel coating
CN1151901C (en) Alkaline granule steel ladle covering agent
US5366535A (en) Basic tundish covering compound
CN100371105C (en) Molten steel covering agent and its preparation method
CN102230049B (en) Molten iron desulfurizing agent, preparation method thereof and desulfurization method using molten iron desulfurizing agent
CN1257783C (en) Double-layered alkali grain covering agent for middle ladle
CN102191355A (en) Covering agent for steel smelting, and preparation method thereof
JP2002060832A (en) Calcium aluminate-based desulfurizing agent
CN1869252A (en) Superlight, carbonless granular ladle covering agent resource saving and environment type
CN102296150B (en) Submerged arc foaming refining agent and preparation method thereof
CN113337670B (en) Molten steel heat-preservation covering agent capable of supplementing heat
CN101486587A (en) Double-layer tundish covering agent
CN102107265A (en) Ladle covering flux and use method thereof
CN102744381A (en) High-alkalinity tundish covering agent
JP2007290023A (en) Heat insulating material for molten metal vessel
CN101798611A (en) Freon-free slagging agent for rotating furnace
CN1257031C (en) Carbonless prremelt hollow type alkali pouring basket covering agent
CN101215620A (en) Micro-alloying refined synthetic slag and preparation method thereof
CN102794419A (en) Fluorine-free sodium-free ladle covering agent
JPH0425325B2 (en)
JPH0673728B2 (en) Exothermic mold powder for continuous casting
CN102747191A (en) Molten steel desulfurizer and preparation method thereof
CN105414506A (en) Light heat preservation melting covering agent
CN101435044A (en) Method for smelting calloy by aluminum electric warming

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20081231

Termination date: 20091218