BR0009533A - Process for inductive hardening of the edge layer of workpieces hollow - Google Patents
Process for inductive hardening of the edge layer of workpieces hollowInfo
- Publication number
- BR0009533A BR0009533A BR0009533-8A BR0009533A BR0009533A BR 0009533 A BR0009533 A BR 0009533A BR 0009533 A BR0009533 A BR 0009533A BR 0009533 A BR0009533 A BR 0009533A
- Authority
- BR
- Brazil
- Prior art keywords
- hardening
- inductor
- sudden cooling
- hollow
- inductive
- Prior art date
Links
Classifications
-
- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/14—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
-
- 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
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Patente de Invenção: "PROCESSO PARA O ENDURECIMENTO INDUTIVO DA CAMADA DE BORDA DE PEçAS A SEREM TRABALHADAS OCAS". A invenção refere a um processo para o endurecimento indutivo da camada de borda de uma peça a ser trabalhada oca, em particular, de uma peça de acionamento de um veículo automotor, sendo que o atraso de endurecimento da peça a ser trabalhada deve ser mantido o menor possível. Para isso, é empregado um dispositivo de endurecimento que abrange um indutor e uma ducha de resfriamento brusco, sendo que a ducha de resfriamento brusco está disposta acima do indutor. Quando o dispositivo de endurecimento é movimentado de cima para baixo passando pela superfície da peça a ser endurecida, então, através do indutor, ocorre um aquecimento local, e através da ducha de resfriamento brusco, ocorre um resfriamento brusco logo em seguida, e por conseguinte, o endurecimento da área referida. Ao mesmo tempo, a área aquecida é borrifada por um meio de resfriamento brusco que corre para baixo, o que leva a uma redução significativa da distorção de endurecimento com bom resultado de endurecimento.Invention Patent: "PROCESS FOR THE INDUCTIVE HARDENING OF THE PIECE EDGE OF PARTS TO BE HOLIDAY WORK". The invention relates to a process for inductive hardening of the edge layer of a workpiece hollow, in particular, of a driving part of a motor vehicle, the hardening delay of the workpiece being maintained as long as possible. as small as possible. For this, a hardening device is used that includes an inductor and a sudden cooling shower, the sudden cooling shower is arranged above the inductor. When the hardening device is moved from top to bottom passing the surface of the part to be hardened, then, through the inductor, there is a local heating, and through the sudden cooling shower, there is a sudden cooling immediately thereafter, and therefore , the hardening of the referred area. At the same time, the heated area is sprayed by an abrupt cooling device that runs downwards, which leads to a significant reduction in the hardening distortion with good hardening result.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19915264A DE19915264C1 (en) | 1999-04-03 | 1999-04-03 | Hollow workpiece, especially a vehicle transmission component e.g. a joint housing, is induction surface hardened by lowering an inductor and an overhead quench nozzle relative to the workpiece wall |
| PCT/EP2000/000930 WO2000060129A1 (en) | 1999-04-03 | 2000-02-05 | Method for induction-surface hardening hollow work pieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR0009533A true BR0009533A (en) | 2002-01-02 |
Family
ID=7903514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR0009533-8A BR0009533A (en) | 1999-04-03 | 2000-02-05 | Process for inductive hardening of the edge layer of workpieces hollow |
Country Status (3)
| Country | Link |
|---|---|
| BR (1) | BR0009533A (en) |
| DE (1) | DE19915264C1 (en) |
| WO (1) | WO2000060129A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10112295B4 (en) * | 2001-03-08 | 2004-07-29 | Berstorff Gmbh | Manufacture of a barrel of a twin screw extruder |
| DE10325986B3 (en) * | 2003-06-07 | 2004-12-09 | Daimlerchrysler Ag | Method for edge zone hardening of a one-piece workpiece |
| DE102007019172A1 (en) * | 2007-04-20 | 2008-10-23 | Esser-Werke Gmbh & Co. Kg | Hardening device for inner surface of conveyor tube has inductor and quench hardening spray held on support unit |
| DE102010005262B4 (en) * | 2009-01-21 | 2019-09-12 | Bayerische Motoren Werke Aktiengesellschaft | Process for the production of a hard material coating tools and their uses |
| US8454767B2 (en) * | 2011-03-01 | 2013-06-04 | Ntn Corporation | Heat treatment method, outer joint member, and tripod type constant velocity universal joint |
| CN104357621A (en) * | 2014-10-22 | 2015-02-18 | 广州市机电工业研究所 | Process method for grain refinement by induction quenching |
| CN104480286B (en) * | 2014-12-25 | 2016-08-17 | 马鞍山市天马冶金材料有限公司 | A kind of quenching unit for roller shell |
| CN104831021A (en) * | 2015-05-11 | 2015-08-12 | 柳州金盾机械有限公司 | Process method for crystalline grain induction quenching and refining |
| CN105177241A (en) * | 2015-07-04 | 2015-12-23 | 安徽旭鸿热处理有限公司 | Long pipe inner wall quenching device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2376515A (en) * | 1941-11-21 | 1945-05-22 | Buo Induction Heating Inc | Apparatus for and method of quenching |
| US4401485A (en) * | 1981-07-22 | 1983-08-30 | Park-Ohio Industries, Inc. | Method for inductively heating thin-walled elongated workpieces |
| US4375997A (en) * | 1982-05-13 | 1983-03-08 | General Motors Corporation | Method of inductively heat treating a thin-walled workpiece to control distortion |
| GB2182062B (en) * | 1985-10-23 | 1990-04-11 | Quinn S Oilfield Supply Ltd | Internally hardened tubes |
-
1999
- 1999-04-03 DE DE19915264A patent/DE19915264C1/en not_active Expired - Fee Related
-
2000
- 2000-02-05 BR BR0009533-8A patent/BR0009533A/en not_active Application Discontinuation
- 2000-02-05 WO PCT/EP2000/000930 patent/WO2000060129A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| DE19915264C1 (en) | 2000-06-21 |
| WO2000060129A1 (en) | 2000-10-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B06A | Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law | ||
| B11B | Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements |