KR860004161A - 불연속 분위기에서의 침탄 방법 - Google Patents
불연속 분위기에서의 침탄 방법 Download PDFInfo
- Publication number
- KR860004161A KR860004161A KR1019850008474A KR850008474A KR860004161A KR 860004161 A KR860004161 A KR 860004161A KR 1019850008474 A KR1019850008474 A KR 1019850008474A KR 850008474 A KR850008474 A KR 850008474A KR 860004161 A KR860004161 A KR 860004161A
- Authority
- KR
- South Korea
- Prior art keywords
- carburizing
- discontinuous
- atmosphere
- hydrocarbon
- inert gas
- Prior art date
Links
Classifications
-
- 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
- C23C8/20—Carburising
- C23C8/22—Carburising of ferrous surfaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0031—Rotary furnaces with horizontal or slightly inclined axis
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 가로축을 절단한 로우타리 침탄로의 측단면도.
제2도는 제1도의 2-2선을 따른 단면도.
* 도면중 주요 부분에 대한 부호의 설명
10:로우타리침탄로, 12:강철셸, 14:원통형증류기, 18:침탄구역, 22:장입구, 30:열원구역, 32:방사열관.
Claims (11)
- 산화철제품이 직접 침탄 처리되는 침탄구역으로부터 열원을 물리적인 방법으로 격리시키는 형식의 침탄로 내에서 산화철제품을 침탄시키는 방법에 있어서, 산화된 탄화수소와 탄화수소 가 기체로 된 침탄 혼합물을 불활성 기체의 포함없이 단독으로 침탄구역내로 장입시키고 동시에 불활성 기체는 침탄혼합물을 포함하지 않고 열원의 구역내로 분리장입시키는 것을 특징으로 하는 불연속 분위기에서의 침탄방법.
- 제1항에 있어서, 상기 탄화수소부가 기체가 메탄인 것을 특징으로 하는 불연속 분위기에서의 침탄방법.
- 제1항에 있어서, 상기 탄화수소부가 기체가 에탄인 것을 특징으로 하는 불연속 분위기에서의 침탄방법.
- 제1항에 있어서, 상기 탄화수소부가 기체가 프로판인 것을 특징으로 하는 불연속 분위기에서의 침탄방법.
- 제1항에 있어서, 상기 불활성 기체가 질소인 것을 특징으로 하는 불연속 분위기에서의 침탄방법.
- 제1항에 있어서, 상기 침탄로가 연속형 로우타리 침탄로인 것을 특징으로 하는 불연속 분위기에서의 침탄방법.
- 제6항에 있어서, 상기 침탄로는 침탄혼합물이 장입되는 로우타리 증류기와, 불활성 기체가 장입되는 열원을 포함하는 침탄로의 셀을 갖는 것을 특징으로 하는 불연속 분위기에서의 침탄방법.
- 제1항에 있어서, 산화된 탄화수소는 알클기, 알데히드기, 에스테르기, 에테르기와 3개의 탄소원자를 갖는 그들의 혼합물로 이루어진 그룹으로부터 선택하는 것을 특징으로 하는 불연속 분위기에서의 침탄방법.
- 제1항에 있어서, 상기 산화된 탄화수소가 메탄올인 것을 특징으로 하는 불연속 분위기에서의 침탄방법.
- 제1항에 있어서, 상기 침탄혼합물은 불활성 기체의 체적에 비해 10%에 달하는 메탄올과 메탄으로 구성되는 것을 특징으로 하는 불연속 분위기에서의 침탄방법.
- ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/670,706 US4597807A (en) | 1984-11-13 | 1984-11-13 | Accelerated carburizing method with discrete atmospheres |
US670,706 | 1984-11-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR860004161A true KR860004161A (ko) | 1986-06-18 |
KR900000792B1 KR900000792B1 (ko) | 1990-02-16 |
Family
ID=24691528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019850008474A KR900000792B1 (ko) | 1984-11-13 | 1985-11-13 | 개별분위기에 의한 침탄 촉진방법 |
Country Status (8)
Country | Link |
---|---|
US (1) | US4597807A (ko) |
JP (1) | JPS61153271A (ko) |
KR (1) | KR900000792B1 (ko) |
BR (1) | BR8505713A (ko) |
CA (1) | CA1244326A (ko) |
DE (1) | DE3540282A1 (ko) |
NL (1) | NL8503126A (ko) |
ZA (1) | ZA858671B (ko) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5324415A (en) * | 1989-06-09 | 1994-06-28 | Blumenthal Robert N | Apparatus and systems for analyzing a sample of treatment atmosphere having a carbon potential |
SE466755B (sv) * | 1989-06-30 | 1992-03-30 | Aga Ab | Foerfarande foer uppkolning av staal med reducering av vaetehalten i uppkolningsskiktet |
US4966348A (en) * | 1989-06-30 | 1990-10-30 | Lindberg Corp. | Method and apparatus for monitoring atmosphere in furnaces |
JP4823670B2 (ja) * | 2005-12-13 | 2011-11-24 | 大陽日酸株式会社 | 浸炭用雰囲気ガス発生方法 |
US9365919B2 (en) * | 2010-12-17 | 2016-06-14 | Bhagavan Raghavan | Method for reduction of time in a gas carburizing process and cooling apparatus utilizing a high speed quenching oil flow rate |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2329896A (en) * | 1941-01-28 | 1943-09-21 | Leeds & Northrup Co | Method of and compound for carburizing |
US2594876A (en) * | 1947-11-24 | 1952-04-29 | Electric Furnace Co | Apparatus for carburizing steel |
AT239293B (de) * | 1962-02-10 | 1965-03-25 | Maag Zahnraeder & Maschinen Ag | Verfahren zum regelbaren Aufkohlen der Oberflächenschicht von Werkstücken aus Stahl |
US3259527A (en) * | 1963-10-21 | 1966-07-05 | Midland Ross Corp | Electric heating elements for carburizing atmospheres |
US3397875A (en) * | 1966-05-20 | 1968-08-20 | Leeds & Northrup Co | Apparatus for maintaining a carburizing atmosphere during heat treatment |
US3950192A (en) * | 1974-10-30 | 1976-04-13 | Monsanto Company | Continuous carburizing method |
US4145232A (en) * | 1977-06-03 | 1979-03-20 | Union Carbide Corporation | Process for carburizing steel |
FR2446322A2 (fr) * | 1979-01-15 | 1980-08-08 | Air Liquide | Procede de traitement thermique de l'acier et de controle dudit traitement |
JPS5630058A (en) * | 1979-08-17 | 1981-03-26 | Kawasaki Steel Corp | Preventing method for leakage of molten steel through porus brick |
JPS56146866A (en) * | 1980-04-12 | 1981-11-14 | Matsushita Electric Works Ltd | Manufacture of electrical contact material |
US4306918A (en) * | 1980-04-22 | 1981-12-22 | Air Products And Chemicals, Inc. | Process for carburizing ferrous metals |
US4317687A (en) * | 1980-05-12 | 1982-03-02 | Air Products And Chemicals, Inc. | Carburizing process utilizing atmospheres generated from nitrogen-ethanol based mixtures |
JPS59100267A (ja) * | 1982-11-29 | 1984-06-09 | Shimadzu Corp | 連続式熱処理装置 |
-
1984
- 1984-11-13 US US06/670,706 patent/US4597807A/en not_active Expired - Fee Related
-
1985
- 1985-11-06 CA CA000494728A patent/CA1244326A/en not_active Expired
- 1985-11-12 ZA ZA858671A patent/ZA858671B/xx unknown
- 1985-11-13 DE DE19853540282 patent/DE3540282A1/de active Granted
- 1985-11-13 NL NL8503126A patent/NL8503126A/nl not_active Application Discontinuation
- 1985-11-13 BR BR8505713A patent/BR8505713A/pt unknown
- 1985-11-13 JP JP60254651A patent/JPS61153271A/ja active Pending
- 1985-11-13 KR KR1019850008474A patent/KR900000792B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR900000792B1 (ko) | 1990-02-16 |
BR8505713A (pt) | 1986-08-12 |
DE3540282A1 (de) | 1986-05-22 |
US4597807A (en) | 1986-07-01 |
NL8503126A (nl) | 1986-06-02 |
CA1244326A (en) | 1988-11-08 |
JPS61153271A (ja) | 1986-07-11 |
ZA858671B (en) | 1987-07-29 |
DE3540282C2 (ko) | 1987-10-15 |
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