KR970043266A - 철강 부품의 플라즈마 확산질화 다단계 편차처리 방법 - Google Patents

철강 부품의 플라즈마 확산질화 다단계 편차처리 방법 Download PDF

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KR970043266A
KR970043266A KR1019950047713A KR19950047713A KR970043266A KR 970043266 A KR970043266 A KR 970043266A KR 1019950047713 A KR1019950047713 A KR 1019950047713A KR 19950047713 A KR19950047713 A KR 19950047713A KR 970043266 A KR970043266 A KR 970043266A
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South Korea
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treatment
plasma
primary
diffusion
nitriding
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KR1019950047713A
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KR100250220B1 (ko
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박정렬
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김종진
포항종합제철 주식회사
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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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/04—Treatment of selected surface areas, e.g. using masks
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/24—Nitriding
    • C23C8/26—Nitriding of ferrous surfaces
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/36—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding
    • C23C8/38—Treatment of ferrous surfaces

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

연질 뜨임처리 후, 정밀가공한 부품 표면을 요구 부위별로 차등적인 표면경화처리 및 표면 압축 잔류응력화를 수반함과 동시에 내구성을 극대화할 수 있는 플라즈마 확산질화 다단계 편차처리 방법에 관한 것으로, 구조 용강소재를 850℃에서 1시간 동안 용체화 처리하고 유냉하는 공정과, 690℃에서 2시간 동안 뜨임 처리를 하고 유냉하여 부품으로 가공완료하는 공정과, 무처리 표면부(4)를 열적으로 안정한 물질(금속박, 세라믹)로 1차 마스킹하는 공정과, 소정의 조건으로 플라즈마 확신질화 처리를 실시하고 노냉하는 공정과, 1차 마스킹한 부위의 마스킹을 유지한 체 1차 플라즈마 확산질화 처리된 저농도 질소 확산부(5)를 상기 1차 처리와 동일하게 마스킹하여 1차와 동일한 조건에서 3시간 동안 2차 플라즈마 확산질화 처리 및 노냉을 실시하여 중농도 질소 확산부(6)를 형성하는 공정과, 같은 방법으로 1차 및 2차 마스킹을 유지한 채, 2차 처리된 중농도 질소 확산부(6)를 1,2차 처리와 동일조건으로 3차 마스킹하고, 동일조건으로 3시간 동안 3차 플라즈마 확산질화 처리 및 노냉을 실시하여 고농도 질소 확산부(7)를 형성하고 노냉하는 공정으로 이루어져 있기 때문에, 표면압축 잔류응력이 크고 표면경도도 큰 질소 확산층을 형성시키며, 부품치수 변화도 거의 없어 추가공도 불필요하고 요구부위별로 원하는 표면경도 편차성을 확보할 수 있게 되어 부품의 부위별 기능을 증가시킬 수 있는 효과가 있다.

Description

철강 부품의 플라즈마 확산질화 다단계 편차처리 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 무변형 편차 표면강화 및 압축잔류 응력화를 위해 확산질화 편차처리된 철강부품의 표면주위 단면도이다.

Claims (1)

  1. 구조 용강소재를 850℃에서 1시간 동안 용체화 처리하고 유냉하는 공정과, 690℃에서 2시간 동안 뜨임 처리를 하고 유냉하여 부품으로 가공완료하는 공정과, 무처리 표면부(4)를 열적으로 안정한 물질(금속박, 세라믹)로 1차 마스킹하는 공정과, 소정의 조건으로 플라즈마 확신질화 처리를 실시하고 노냉하는 공정과, 1차 마스킹한 부위의 마스킹을 유지한 채 1차 플라즈마 확산질화 처리된 저농도 질소 확산부(5)를 상기 1차 처리와 동일하게 마스킹하여 1차와 동일한 조건에서 3시간 동안 2차 플라즈마 확산질화 처리 및 노냉을 실시하여 중농도 질소 확산부(6)를 형성하는 공정과, 같은 방법으로 1차 및 2차 마스킹을 유지한 채, 2차 처리된 중농도 질소 확산부(6)를 1,2차 처리와 동일조건으로 3차 마스킹하고, 동일조건으로 3시간 동안 3차 플라즈마 확산질화 처리 및 노냉을 실시하여 고농도 질소 확산부(7)를 형성하고 노냉하는 공정으로 이루어진 것을 특징으로 하는 철강부품의 플라즈마 확산질화 다단계 편차처리 방법.
KR1019950047713A 1995-12-08 1995-12-08 철강 부품의 플라즈마 확산질화 다단계 편차처리 방법 KR100250220B1 (ko)

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Application Number Priority Date Filing Date Title
KR1019950047713A KR100250220B1 (ko) 1995-12-08 1995-12-08 철강 부품의 플라즈마 확산질화 다단계 편차처리 방법

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Application Number Priority Date Filing Date Title
KR1019950047713A KR100250220B1 (ko) 1995-12-08 1995-12-08 철강 부품의 플라즈마 확산질화 다단계 편차처리 방법

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KR970043266A true KR970043266A (ko) 1997-07-26
KR100250220B1 KR100250220B1 (ko) 2000-04-01

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JPH05202464A (ja) * 1992-01-27 1993-08-10 Parker Netsushiyori Kogyo Kk 部品の部分窒化方法

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