EP0332926A3 - Continuous furnace for sintering pressed metal powders - Google Patents
Continuous furnace for sintering pressed metal powders Download PDFInfo
- Publication number
- EP0332926A3 EP0332926A3 EP89103492A EP89103492A EP0332926A3 EP 0332926 A3 EP0332926 A3 EP 0332926A3 EP 89103492 A EP89103492 A EP 89103492A EP 89103492 A EP89103492 A EP 89103492A EP 0332926 A3 EP0332926 A3 EP 0332926A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal powders
- pressed metal
- continuous furnace
- furnace
- sintering pressed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0073—Seals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
- F27B9/045—Furnaces with controlled atmosphere
- F27B9/047—Furnaces with controlled atmosphere the atmosphere consisting of protective gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
- F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
- F27D1/0009—Comprising ceramic fibre elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D2001/0059—Construction elements of a furnace
- F27D2001/0069—Means to prevent heat conduction
- F27D2001/0073—Surrounding protection around the furnace, e.g. covers, circulation of gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/02—Skids or tracks for heavy objects
- F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Tunnel Furnaces (AREA)
Abstract
Continuous furnace for sintering pressed metal powders,
constituted by a furnace traversed by a plurality of
transverse, parallel, adjacent and continuously rotating
rollers (9) made of refractory material which operate in an
inert-gas atmosphere, and comprising gas sealing means (11)
and burners arranged at the inlet and at the outlet of the
furnace and adapted to eliminate by combustion any traces of
oxidating gases.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT337288 | 1988-03-15 | ||
IT03372/88A IT1220312B (en) | 1988-03-15 | 1988-03-15 | OVEN WITH CONTINUOUS FEEDING OF THE PIECES FOR THE SINTERING OF PRESSED METAL POWDERS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0332926A2 EP0332926A2 (en) | 1989-09-20 |
EP0332926A3 true EP0332926A3 (en) | 1990-02-28 |
Family
ID=11105896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89103492A Withdrawn EP0332926A3 (en) | 1988-03-15 | 1989-02-28 | Continuous furnace for sintering pressed metal powders |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0332926A3 (en) |
IT (1) | IT1220312B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9205383U1 (en) * | 1992-04-18 | 1993-09-09 | Keller GmbH, 49479 Ibbenbüren | Tunnel kiln |
DE9205385U1 (en) * | 1992-04-18 | 1993-08-12 | Keller GmbH, 49479 Ibbenbüren | Tunnel kiln for firing ceramic moldings |
DE4228006A1 (en) * | 1992-08-24 | 1994-03-03 | Ngk Insulators Ltd | Continuous roller hearth furnace |
IT1306298B1 (en) * | 1998-06-18 | 2001-06-04 | Tecnochimica Sassolese S R L | SEALING AND ROLLER HANDLING DEVICE TRANSPORT OF A ROLLER OVEN |
CN103438700B (en) * | 2013-08-02 | 2016-01-20 | 浙江吉利汽车研究院有限公司 | For the heating furnace of hot forming production line |
CN103453770A (en) * | 2013-08-29 | 2013-12-18 | 江苏高皓工业炉有限公司 | Energy-saving cover type sintering furnace |
CN112743076A (en) * | 2021-01-12 | 2021-05-04 | 江苏威拉里新材料科技有限公司 | Metal powder smelting integrated furnace with automatic material collecting structure |
CN115634983A (en) * | 2021-07-19 | 2023-01-24 | 苏州普热斯勒先进成型技术有限公司 | Heating furnace |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2175834A (en) * | 1938-09-30 | 1939-10-10 | Westinghouse Electric & Mfg Co | Heat treating furnace |
GB563225A (en) * | 1943-02-05 | 1944-08-03 | Bernard Joseph Moore | Improvements in industrial kilns and ovens |
US3575398A (en) * | 1968-11-13 | 1971-04-20 | Midland Ross Corp | Apparatus for minimizing atmosphere upset in a furnace for heat treating articles |
FR2385060A1 (en) * | 1977-03-24 | 1978-10-20 | Autoclave Eng Inc | AUTOCLAVE OVEN |
FR2405449A1 (en) * | 1977-10-07 | 1979-05-04 | Welko Ind Spa | SUPPORT FOR ROTATING ROLLERS FORMING THE ADVANCEMENT PLAN OF CERAMIC MATERIALS IN THE COOKING OVENS |
GB2135032A (en) * | 1983-02-10 | 1984-08-22 | Boc Group Plc | Heat treatment of workpieces |
-
1988
- 1988-03-15 IT IT03372/88A patent/IT1220312B/en active
-
1989
- 1989-02-28 EP EP89103492A patent/EP0332926A3/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2175834A (en) * | 1938-09-30 | 1939-10-10 | Westinghouse Electric & Mfg Co | Heat treating furnace |
GB563225A (en) * | 1943-02-05 | 1944-08-03 | Bernard Joseph Moore | Improvements in industrial kilns and ovens |
US3575398A (en) * | 1968-11-13 | 1971-04-20 | Midland Ross Corp | Apparatus for minimizing atmosphere upset in a furnace for heat treating articles |
FR2385060A1 (en) * | 1977-03-24 | 1978-10-20 | Autoclave Eng Inc | AUTOCLAVE OVEN |
FR2405449A1 (en) * | 1977-10-07 | 1979-05-04 | Welko Ind Spa | SUPPORT FOR ROTATING ROLLERS FORMING THE ADVANCEMENT PLAN OF CERAMIC MATERIALS IN THE COOKING OVENS |
GB2135032A (en) * | 1983-02-10 | 1984-08-22 | Boc Group Plc | Heat treatment of workpieces |
Also Published As
Publication number | Publication date |
---|---|
IT8803372A0 (en) | 1988-03-15 |
IT1220312B (en) | 1990-06-15 |
EP0332926A2 (en) | 1989-09-20 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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RHK1 | Main classification (correction) |
Ipc: F27B 9/24 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19900829 |