KR950018622A - 탈탄용 소둔로의 탄소재 허스롤의 표면처리방법 - Google Patents

탈탄용 소둔로의 탄소재 허스롤의 표면처리방법 Download PDF

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Publication number
KR950018622A
KR950018622A KR1019930029644A KR930029644A KR950018622A KR 950018622 A KR950018622 A KR 950018622A KR 1019930029644 A KR1019930029644 A KR 1019930029644A KR 930029644 A KR930029644 A KR 930029644A KR 950018622 A KR950018622 A KR 950018622A
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KR
South Korea
Prior art keywords
surface treatment
hearth roll
annealing furnace
carbonaceous
carbonaceous hearth
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KR1019930029644A
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English (en)
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KR960007770B1 (ko
Inventor
김진형
김종구
김준형
Original Assignee
조말수
포항종합제철 주식회사
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Priority to KR1019930029644A priority Critical patent/KR960007770B1/ko
Publication of KR950018622A publication Critical patent/KR950018622A/ko
Application granted granted Critical
Publication of KR960007770B1 publication Critical patent/KR960007770B1/ko

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

본 발명은 전기강판등의 제조시 사용되는 탈탄용소둔로의 탄소재 허스롤(hearth roll)을 표면처리하는 방법에 관한 것으로써, 적절한 표면처리용액에 탄소재 허스롤을 침적시켜 허스롤을 표면처리시킴으로써, 내구성향상 및 탈탄방지에 의한 수명향상을 가져올 수 있는 향상된 탈탄용 소둔로의 탄소재허스롤의 표면처리방법을 제공하고자 하는데, 그 목적이 있다.
본 발명은 중량%로, 41.6-50.9%의 H3PO4, 10.9-13.3%의 Al(OH)3및 35.7-43.7%의 정수를 혼합탱크에 넣어 100-105℃에 3-4시간 혼합하여 45-50% Al인산염을 제조한 다음, 상기와 같이 제조된 Al 인산염 : 87.3%-95.3%와 Cr2O3: 4.7-12.7%를 혼합탱크에 넣고 40-60분동안 혼합하여 표면처리용액을 제조하는 단계; 및 상기와 같이 제조된 표면처리용액에 탄소재 허스롤을 60-80시간 침적시킨 다음, 대기중에서 5-6일간 자연 건조시키는 단계를 포함하여 구성되는 탈탄용소둔로의 탄소재 허스롤의 표면처리방법을 그 요지로 한다.

Description

탈탄용 소둔로의 탄소재 허스롤의 표면처리방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본발명에 따라 표면처리된 탄소재 허스롤과 표면처리되지 않은 탄소재 허스롤을 탈탄성 분위기로내에서 일정기간 사용한 후의 상태를 나타내는 탄소재 허스롤의 사진.

Claims (2)

  1. 중량%로, 41.6-50.9%의 H3PO4, 10.9-13.3%의 Al(OH)3및 35.7-43.7%의 정수를 혼합탱크에 넣어 100-105℃에 3-4시간 혼합하여 45-50% Al인산염을 제조한 다음, 상기와 같이 제조된 Al 인산염 : 87.3%-95.3%와 Cr2O3: 4.7-12.7%를 혼합탱크에 넣고 40-60분동안 혼합하여 표면처리용액을 제조하는 단계; 및 상기와 같이 제조된 표면처리용액에 탄소재 허스롤를 60-80시간 침적시킨 다음, 대기중에서 5-6일간 자연 건조시키는 단계를 포함하여 구성되는 탈탄용소둔로의 탄소재 허스롤의 표면처리방법.
  2. 제1항에 있어서, 롤내로의 용액침투깊이가 2-3mm이 되도록 침적시키는 것을 특징으로 하는 탈탄용 소둔로의 탄소재 허스롤의 표면처리방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930029644A 1993-12-24 1993-12-24 탈탄용 소둔로의 탄소재 허스롤의 표면처리방법 KR960007770B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930029644A KR960007770B1 (ko) 1993-12-24 1993-12-24 탈탄용 소둔로의 탄소재 허스롤의 표면처리방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930029644A KR960007770B1 (ko) 1993-12-24 1993-12-24 탈탄용 소둔로의 탄소재 허스롤의 표면처리방법

Publications (2)

Publication Number Publication Date
KR950018622A true KR950018622A (ko) 1995-07-22
KR960007770B1 KR960007770B1 (ko) 1996-06-12

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Application Number Title Priority Date Filing Date
KR1019930029644A KR960007770B1 (ko) 1993-12-24 1993-12-24 탈탄용 소둔로의 탄소재 허스롤의 표면처리방법

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KR (1) KR960007770B1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100720531B1 (ko) 2005-12-29 2007-05-22 동부일렉트로닉스 주식회사 반도체 소자의 금속배선 및 그의 형성방법

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