KR20040021556A - 강화된 내식성을 가진 금속부재의 염욕질화(鹽浴窒化)에의한 제조방법 - Google Patents
강화된 내식성을 가진 금속부재의 염욕질화(鹽浴窒化)에의한 제조방법 Download PDFInfo
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- KR20040021556A KR20040021556A KR1020030061381A KR20030061381A KR20040021556A KR 20040021556 A KR20040021556 A KR 20040021556A KR 1020030061381 A KR1020030061381 A KR 1020030061381A KR 20030061381 A KR20030061381 A KR 20030061381A KR 20040021556 A KR20040021556 A KR 20040021556A
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- Prior art keywords
- salt bath
- salt
- washing
- metal member
- treatment
- Prior art date
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Classifications
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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
- C23C8/40—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 liquids, e.g. salt baths, liquid suspensions
- C23C8/52—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 liquids, e.g. salt baths, liquid suspensions more than one element being applied in one step
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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
- C23C8/40—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 liquids, e.g. salt baths, liquid suspensions
- C23C8/42—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 liquids, e.g. salt baths, liquid suspensions only one element being applied
- C23C8/48—Nitriding
Abstract
Description
욕 No. | NaNo3 | KNo3 | NaOH | NaNo2 |
B1 | 55 | 45 | - | - |
B2 | 52 | 43 | 5 | - |
B3 | - | 55 | - | 45 |
B4 | - | 52 | 5 | 43 |
처리 No. | 치환세정욕처리 | 처리품 |
강판(SPC) | ||
비교예 | 없음 | 240시간 |
본 발명 1 | B1 | 408시간 |
본 발명 2 | B2 | 480시간 |
본 발명 3 | B3 | 504시간 |
본 발명 4 | B4 | 816시간 |
처리 No. | 치환세정욕처리 | 처리품(연마 강철봉 S20C) | |
버프연마없음 | 버프연마있음 | ||
비교예 | 없음 | 120시간 | 96시간 |
본 발명 1 | B1 | 336시간 | 312시간 |
본 발명 2 | B2 | 408시간 | 408시간 |
본 발명 3 | B3 | 432시간 | 408시간 |
본 발명 4 | B4 | 744시간 | 720시간 |
처리 No. | 질화염욕 | 치환세정욕처리 | 녹발생시간 |
비교예 1 | 염욕 C | 없음 | 6시간 |
비교예 2 | 염욕 N | 없음 | 96시간 |
본 발명 1 | ↑ | B1 | 504시간 |
본 발명 2 | ↑ | B2 | 720시간 |
본 발명 3 | ↑ | B3 | 768시간 |
본 발명 4 | ↑ | B4 | 1200시간 |
처리 No. | 수희석성 수지코트 | 처리품 |
강판(SPCC) | ||
본 발명 1 | 없음 | 408시간 |
본 발명 2 | HYTEC S-3121 | 1056시간 |
Claims (12)
- 양이온성분으로서 Li+, Na+및 K+을, 음이온성분으로서 CNO-와 CO3 --를 포함하는 질화염욕중에 금속부재를 침지하여 그 표면에 질화층을 형성시킬 때에, 상기 질화염욕에 수산화알카리, 결합수, 자유수 및 습윤공기로 이루어지는 군에서 선택된 산화력 강화물질의 첨가에 의해 질화염욕의 산화력을 강화하고, 금속부재표면에 질화층과 동시에 그 최표면에 산화물층을 형성시키는 방법에 있어서, 질화염욕으로의 침지의 다음공정에서 알카리금속질산염을 함유하는 치환세정염욕에 침지하는 것을 특징으로 하는 내식성이 강화된 금속부재의 염욕질화방법.
- 제 1 항에 있어서, 치환세정염욕이, 질산나트륨, 질산칼륨 및 질산리튬으로 이루어지는 군에서 선택되는 적어도 1종의 알카리금속질산염을 포함하는 금속부재의 염욕질화방법.
- 제 1 항에 있어서, 치환세정염욕에, 수산화나트륨, 수산화칼륨 및 수산화리튬으로 이루어지는 군에서 선택된 적어도 1종의 수산화알카리금속을더욱 포함하는 금속부재의 염욕질화방법.
- 제 1 항에 있어서, 치환세정염욕에, 아질산나트륨, 아질산칼륨 및 아질산리튬으로 이루어지는 군에서 선택된 적어도 1종의 알카리금속 아질산염을 더욱 포함하는 금속부재의 염욕질화방법.
- 제 1 항에 있어서, 치환세정염욕에, 수산화나트륨, 수산화칼륨 및 수산화리튬으로 이루어지는 군에서 선택된 적어도 1종의 수산화알카리금속과, 아질산나트륨, 아질산칼륨 및 아질산리튬으로부터 선택된 적어도 1종의 알카리금속 아질산염을 더욱 포함하는 금속부재의 염욕질화방법.
- 제 1 항에 있어서, 치환세정염욕이, 300∼550℃의 온도로 제어되는 금속부재의 염욕질화방법.
- 제 1 항에 있어서, 치환세정염욕에 침지후, 물, 기름 및 공기로 이루어지는 군에서 선택된 냉각매체로 금속부재를 냉각한 후, 뜨거운 물로 세정하는 금속부재의 염욕질화방법.
- 제 7 항에 있어서, 뜨거운 물로 세정한 후에 물희석성 수지를 코팅하는 금속부재의 염욕질화방법.
- 제 8 항에 있어서, 물희석성 수지의 산가가 20∼300의 범위인 금속부재의 염욕질화방법.
- 제 8 항에 있어서, 물희석성 수지의 드라이코팅질량이, 0.1∼5g/m2인 금속부재의 염욕질화방법.
- 제 7 항에 있어서, 뜨거운 물 세정배수중에 시안화물을 전혀 포함하지 않는 금속부재의 염욕질화방법.
- 제 1 항에 있어서, 치환염욕에 침지된 금속부재의 가장 표면층에 있는 흑색의 산화물층의 일부를 연마하여, 흑색광택마무리로 하는 금속부재의 염욕질화방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2002258619A JP3748425B2 (ja) | 2002-09-04 | 2002-09-04 | 耐食性を強化された金属部材の塩浴窒化方法 |
JPJP-P-2002-00258619 | 2002-09-04 |
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KR20040021556A true KR20040021556A (ko) | 2004-03-10 |
KR100727226B1 KR100727226B1 (ko) | 2007-06-13 |
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KR1020030061381A KR100727226B1 (ko) | 2002-09-04 | 2003-09-03 | 강화된 내식성을 가진 금속부재의 염욕질화(鹽浴窒化)방법 |
Country Status (7)
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US (1) | US7217327B2 (ko) |
EP (1) | EP1396553B1 (ko) |
JP (1) | JP3748425B2 (ko) |
KR (1) | KR100727226B1 (ko) |
CN (1) | CN100370056C (ko) |
DE (1) | DE60316646T2 (ko) |
TW (1) | TW200416301A (ko) |
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KR100922619B1 (ko) * | 2008-11-07 | 2009-10-21 | 일진경금속 주식회사 | 고강도 강재 및 그 제조방법 |
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2002
- 2002-09-04 JP JP2002258619A patent/JP3748425B2/ja not_active Expired - Lifetime
-
2003
- 2003-08-26 TW TW092123393A patent/TW200416301A/zh unknown
- 2003-08-28 DE DE60316646T patent/DE60316646T2/de not_active Expired - Lifetime
- 2003-08-28 EP EP03019466A patent/EP1396553B1/en not_active Expired - Fee Related
- 2003-09-02 US US10/651,978 patent/US7217327B2/en not_active Expired - Lifetime
- 2003-09-03 KR KR1020030061381A patent/KR100727226B1/ko active IP Right Grant
- 2003-09-04 CN CNB031470556A patent/CN100370056C/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100812971B1 (ko) * | 2006-02-23 | 2008-03-13 | 일진경금속 주식회사 | 금속의 염욕 질화방법 및 그 방법으로 제조된 금속 |
KR101452925B1 (ko) * | 2007-07-03 | 2014-10-21 | 일진제강 주식회사 | 고강도 부품의 제조방법 및 이에 따라 제조된 고강도 부품 |
KR100922619B1 (ko) * | 2008-11-07 | 2009-10-21 | 일진경금속 주식회사 | 고강도 강재 및 그 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
TW200416301A (en) | 2004-09-01 |
JP3748425B2 (ja) | 2006-02-22 |
US7217327B2 (en) | 2007-05-15 |
DE60316646T2 (de) | 2008-07-17 |
DE60316646D1 (de) | 2007-11-15 |
JP2004091906A (ja) | 2004-03-25 |
CN100370056C (zh) | 2008-02-20 |
EP1396553A1 (en) | 2004-03-10 |
EP1396553B1 (en) | 2007-10-03 |
KR100727226B1 (ko) | 2007-06-13 |
US20040040630A1 (en) | 2004-03-04 |
CN1508282A (zh) | 2004-06-30 |
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