KR950017852A - Magnesia Spherical Powder Spraying Method - Google Patents

Magnesia Spherical Powder Spraying Method Download PDF

Info

Publication number
KR950017852A
KR950017852A KR1019930029662A KR930029662A KR950017852A KR 950017852 A KR950017852 A KR 950017852A KR 1019930029662 A KR1019930029662 A KR 1019930029662A KR 930029662 A KR930029662 A KR 930029662A KR 950017852 A KR950017852 A KR 950017852A
Authority
KR
South Korea
Prior art keywords
powder
magnesia
spray
less
blended
Prior art date
Application number
KR1019930029662A
Other languages
Korean (ko)
Other versions
KR960006239B1 (en
Inventor
박노형
김인술
Original Assignee
조말수
포항종합제철주식회사
백덕현
재단법인산업과학기술연구소
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 조말수, 포항종합제철주식회사, 백덕현, 재단법인산업과학기술연구소 filed Critical 조말수
Priority to KR1019930029662A priority Critical patent/KR960006239B1/en
Publication of KR950017852A publication Critical patent/KR950017852A/en
Application granted granted Critical
Publication of KR960006239B1 publication Critical patent/KR960006239B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/6261—Milling
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/4505—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements characterised by the method of application
    • C04B41/4535—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements characterised by the method of application applied as a solution, emulsion, dispersion or suspension
    • C04B41/4543—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements characterised by the method of application applied as a solution, emulsion, dispersion or suspension by spraying, e.g. by atomising
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

본 발명은 용융금속의 운반, 취련, 저장등을 위해 이용되는 각종 설비의 내장 내화물의 손상부위를 화염용사법으로 보수하는데 사용되는 분말용사 보수재료에 관한 것으로서, 용사재료를 구상분말화함으로써 제조공정의 단순화를 기하고, 용사효율을 높임과 동시에 용사시공체의 특성을 향상시킬 수 있는 마그네시아계 구상분말 용사재료를 제조하고자 하는데, 그 목적이 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder spray repair material used to repair damaged parts of internal refractories of various equipments used for transporting, blowing, and storing molten metal by a flame spray method. In order to simplify and to increase the spraying efficiency and at the same time to improve the properties of the sprayed body to manufacture a magnesia spherical powder spraying material, the purpose is to.

본 발명은 마고네시아계 용사분말을 제조하는 방법에 있어서, 중량%로, 마그네시아 분말 : 45-92%, 전로슬래그 : 5-25%, 스피넬 분말 1종 또는 스피넬분말과 알루미나 분말의 2종 : 30%이하, 및 금속분말 : 0.1-3.0%를 배합하고, 이 배합원료의 중량에 대하여 수용성 바인더를 0.4-0.7% 첨가하여 습식으로 분쇄한 후, 스프레이드라이로 0.5mm이하인 입자크기로 구상화하는 것을 특징으로 하는 마그네시아계 구상분말 용사재료의 제조방법을 그 요지로 한다.The present invention relates to a method for producing a magonesia-based spray powder, magnesia powder: 45-92%, converter slag: 5-25%, spinel powder 1 type or spinel powder and alumina powder: 30 % Or less, and metal powder: 0.1-3.0% is blended, 0.4-0.7% of a water-soluble binder is added to the weight of the blended material, and then pulverized in wet form, and then spheroidized to a particle size of 0.5 mm or less with a spray dry. The manufacturing method of the magnesia spheroidal powder spraying material made into the summary is made into the summary.

Description

마그네시아계 구상 분말 용사재료 제조방법Magnesia spherical powder spraying material manufacturing method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따라 마그네시아계 구상 분말 용사재료를 제조하는 공정을 나타내는 공정도.1 is a process chart showing a process for producing a magnesia spherical powder spraying material according to the present invention.

제2도는 본 발명에 의해 제조된 마그네시아계 혼합구상 분말의 모식도.Figure 2 is a schematic diagram of the magnesia-based mixed spherical powder produced by the present invention.

Claims (2)

마그네시아계 용사분말을 제조하는 방법에 있어서, 중량%로, 마그네시아 분말:45-92%, 전로 슬래그:5-25%, 스피넬 분말 1종 또는 스피넬 분말과 알루미나 분말의 2종:30% 이하, 및 금속분말:0.1-3.0%를 배합하고, 이 배합원료의 중량에 대하여 수용성 바인더를 0.4-0.7% 첨가한 다음, 습식으로 분쇄한후, 스프레이드라이로 0.5mm 이하의 입자크기로 구상화하는 것을 특징으로 하는 마그네시아계 구상 분말용사재료의 제조방법.In the method for producing a magnesia thermal spray powder, magnesia powder: 45-92%, converter slag: 5-25%, spinel powder 1 kind or two kinds: spinel powder and alumina powder: 30% or less in weight%, and Metal powder: 0.1-3.0% is blended, 0.4-0.7% water-soluble binder is added to the weight of the blended raw material, and then pulverized by wet and spheroidized to a particle size of 0.5 mm or less with a spray dry. A method for producing a magnesia-based spherical powder spraying material. 제1항에 있어서, 금속분말이 Al분말 또는 Mg-Al 합금분말인 것을 특징으로 하는 마그네시아계 구상 분말 용사재료의 제조방법.The method for producing a magnesia-based spherical powder spraying material according to claim 1, wherein the metal powder is Al powder or Mg-Al alloy powder. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930029662A 1993-12-24 1993-12-24 Process for the preparation of magnesia powders KR960006239B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930029662A KR960006239B1 (en) 1993-12-24 1993-12-24 Process for the preparation of magnesia powders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930029662A KR960006239B1 (en) 1993-12-24 1993-12-24 Process for the preparation of magnesia powders

Publications (2)

Publication Number Publication Date
KR950017852A true KR950017852A (en) 1995-07-20
KR960006239B1 KR960006239B1 (en) 1996-05-11

Family

ID=19372697

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930029662A KR960006239B1 (en) 1993-12-24 1993-12-24 Process for the preparation of magnesia powders

Country Status (1)

Country Link
KR (1) KR960006239B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030071444A (en) * 2002-02-28 2003-09-03 주식회사 한타엠엔비 Preparation of powder for Thermal spray coatings from steel powder slags
KR100601082B1 (en) * 1998-12-29 2006-09-27 재단법인 포항산업과학연구원 Magnesia-Graphite Spray Material and Manufacturing Method Thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101244208B1 (en) * 2010-12-27 2013-03-18 재단법인 포항산업과학연구원 Sleeve for repairing of a pouring hole of a converter and method for repair the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100601082B1 (en) * 1998-12-29 2006-09-27 재단법인 포항산업과학연구원 Magnesia-Graphite Spray Material and Manufacturing Method Thereof
KR20030071444A (en) * 2002-02-28 2003-09-03 주식회사 한타엠엔비 Preparation of powder for Thermal spray coatings from steel powder slags

Also Published As

Publication number Publication date
KR960006239B1 (en) 1996-05-11

Similar Documents

Publication Publication Date Title
EP0640573A4 (en) Heat-insulating refractory material.
KR950017852A (en) Magnesia Spherical Powder Spraying Method
KR910004824A (en) Method for producing nodules of fired pellets
CA2101132A1 (en) MgO-C Brick Containing a Novel Graphite
KR927003856A (en) Dry method for cold briquetting of metallurgical dust
CN104909776B (en) A kind of MnZn ferrite sintered mullite ceramic load bearing board
JPS57102967A (en) Heat-insulating coat composition
JPS5767654A (en) Polyester composition
CN1032746C (en) Aluminium carbon integrated filler rod
KR927003469A (en) Cement matrix
JPH03290352A (en) High-strength ceramics having low thermal expansion and production thereof
CA2061373A1 (en) Alkaline resol phenol-aldehyde resin binder compositions
Xiong et al. Introduction to a new technology- cold gas dynamic spray
CN1094437A (en) A kind of light coal and production method thereof
JPS57126964A (en) Flame spray coating material
KR940002197A (en) MgO-Al₂O₃-based powder spraying materials for hot repair of industrial furnaces
Kim et al. Development of MgO Bearing Powder for Flame Spraying Repair
KR950014033A (en) Magnesia Powder for Flame and Manufacturing Method
KR970043192A (en) High strength lightweight insulation sintered body manufacturing method
KR910004503A (en) Manufacturing method of lightweight ceramic heat-resistant magnetics
Chitwood Micropores in MIM provide material savings
Lackmann et al. Measurement of the Charged Profile in the Blast Furnace With a Radar Probe
RU2001132205A (en) COMPOSITION FOR PRODUCTION OF HYDROCHLORIC ACID IN INACTIVE FORM
Kim et al. Flame Spraying Properties of MgO Bearing Materials
JPS6469574A (en) Amorphous refractory

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20030506

Year of fee payment: 8

LAPS Lapse due to unpaid annual fee