EP1373586A2 - Method for producing hard metal granulated material - Google Patents
Method for producing hard metal granulated materialInfo
- Publication number
- EP1373586A2 EP1373586A2 EP02703390A EP02703390A EP1373586A2 EP 1373586 A2 EP1373586 A2 EP 1373586A2 EP 02703390 A EP02703390 A EP 02703390A EP 02703390 A EP02703390 A EP 02703390A EP 1373586 A2 EP1373586 A2 EP 1373586A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hard metal
- wet sludge
- spray
- producing
- tower
- 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.)
- Granted
Links
Classifications
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
-
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/026—Spray drying of solutions or suspensions
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Definitions
- a solids content of the wet sludge in the range from 70 to 80% by weight has proven to be particularly advantageous.
- the ratio of the amount of water supplied in liters per hour via the wet sludge, based on the tower volume in m 3, is in the range between 0.5 and 1.8 and that a maximum of 0.17 kg of wet sludge is atomized per m 3 of drying gas supplied are.
- the wet sludge has a solids content in the range of 65 to 85 wt.%.
- the temperature conditions and the amount of drying gas supplied provide the amount of energy that is sufficient for the problematic evaporation of the amount of water supplied via the wet sludge. It is advantageous if the tapered section -3-
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Glanulating (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Sludge (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT2312001 | 2001-03-29 | ||
AT0023101U AT4929U1 (en) | 2001-03-29 | 2001-03-29 | METHOD FOR PRODUCING HARD METAL GRANULES |
PCT/AT2002/000077 WO2002079532A2 (en) | 2001-03-29 | 2002-03-08 | Method for producing hard metal granulated material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1373586A2 true EP1373586A2 (en) | 2004-01-02 |
EP1373586B1 EP1373586B1 (en) | 2010-08-11 |
Family
ID=3485023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02703390A Expired - Lifetime EP1373586B1 (en) | 2001-03-29 | 2002-03-08 | Method for producing hard metal granulated material |
Country Status (12)
Country | Link |
---|---|
US (1) | US6852274B2 (en) |
EP (1) | EP1373586B1 (en) |
JP (1) | JP3697242B2 (en) |
KR (1) | KR100898842B1 (en) |
AT (2) | AT4929U1 (en) |
CA (1) | CA2406372C (en) |
CZ (1) | CZ304422B6 (en) |
DE (1) | DE50214577D1 (en) |
ES (1) | ES2346190T3 (en) |
IL (1) | IL152968A (en) |
RU (1) | RU2281835C2 (en) |
WO (1) | WO2002079532A2 (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT6486U1 (en) * | 2003-02-10 | 2003-11-25 | Plansee Tizit Ag | METHOD FOR PRODUCING A HARD METAL APPROACH |
DE102004053221B3 (en) * | 2004-11-04 | 2006-02-02 | Zschimmer & Schwarz Gmbh & Co. Kg Chemische Fabriken | Liquid and its use for the treatment of hard metals |
DE102006043581B4 (en) * | 2006-09-12 | 2011-11-03 | Artur Wiegand | Method and device for producing a cemented carbide or cermet mixture |
US20080289495A1 (en) * | 2007-05-21 | 2008-11-27 | Peter Eisenberger | System and Method for Removing Carbon Dioxide From an Atmosphere and Global Thermostat Using the Same |
US8163066B2 (en) | 2007-05-21 | 2012-04-24 | Peter Eisenberger | Carbon dioxide capture/regeneration structures and techniques |
US20140130670A1 (en) | 2012-11-14 | 2014-05-15 | Peter Eisenberger | System and method for removing carbon dioxide from an atmosphere and global thermostat using the same |
US8500857B2 (en) | 2007-05-21 | 2013-08-06 | Peter Eisenberger | Carbon dioxide capture/regeneration method using gas mixture |
DE102007024818A1 (en) * | 2007-05-29 | 2008-12-04 | Dorst Technologies Gmbh & Co. Kg | Method and arrangement for producing a metal granulate |
PL2563495T3 (en) | 2010-04-30 | 2020-05-18 | Peter Eisenberger | Method for carbon dioxide capture |
US9028592B2 (en) | 2010-04-30 | 2015-05-12 | Peter Eisenberger | System and method for carbon dioxide capture and sequestration from relatively high concentration CO2 mixtures |
CN102601378A (en) * | 2011-07-18 | 2012-07-25 | 厦门虹鹭钨钼工业有限公司 | Method for preparing ultrafine tungsten copper composite powder by low-temperature combustion method |
US20130095999A1 (en) | 2011-10-13 | 2013-04-18 | Georgia Tech Research Corporation | Methods of making the supported polyamines and structures including supported polyamines |
US11059024B2 (en) | 2012-10-25 | 2021-07-13 | Georgia Tech Research Corporation | Supported poly(allyl)amine and derivatives for CO2 capture from flue gas or ultra-dilute gas streams such as ambient air or admixtures thereof |
US9475945B2 (en) | 2013-10-03 | 2016-10-25 | Kennametal Inc. | Aqueous slurry for making a powder of hard material |
IN2013CH04500A (en) | 2013-10-04 | 2015-04-10 | Kennametal India Ltd | |
EA201691356A1 (en) | 2013-12-31 | 2016-11-30 | Питер Айзенбергер | ROTATING SYSTEM FOR LAYER MOVEMENT WITH A MULTIPLE OF MONOLITHIC LAYERS TO REMOVE COAT OF THE ATMOSPHERE |
CZ305703B6 (en) * | 2014-11-07 | 2016-02-10 | Vysoká škola chemicko- technologická v Praze | Production of nanostructured powders of cobalt alloys by two-stage mechanical alloying |
CN107699283B (en) * | 2017-11-03 | 2020-11-06 | 河源富马硬质合金股份有限公司 | Preparation method of hard alloy paraffin raw material with high wax ratio |
CN112692294B (en) * | 2020-12-22 | 2022-12-09 | 厦门钨业股份有限公司 | High-specific gravity tungsten alloy powder and preparation method thereof |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE299858C (en) | ||||
US4070184A (en) | 1976-09-24 | 1978-01-24 | Gte Sylvania Incorporated | Process for producing refractory carbide grade powder |
US4397889A (en) * | 1982-04-05 | 1983-08-09 | Gte Products Corporation | Process for producing refractory powder |
IT1262947B (en) * | 1992-06-17 | 1996-07-22 | Bayer Italia Spa | GRANULATES, PROCESS FOR THEIR PREPARATION AND USE |
SE9500473D0 (en) | 1995-02-09 | 1995-02-09 | Sandvik Ab | Method of making metal composite materials |
US5841045A (en) * | 1995-08-23 | 1998-11-24 | Nanodyne Incorporated | Cemented carbide articles and master alloy composition |
US5922978A (en) * | 1998-03-27 | 1999-07-13 | Omg Americas, Inc. | Method of preparing pressable powders of a transition metal carbide, iron group metal or mixtures thereof |
GB9814622D0 (en) * | 1998-07-06 | 1998-09-02 | Biotica Tech Ltd | Polyketides,their preparation,and materials for use therein |
-
2001
- 2001-03-29 AT AT0023101U patent/AT4929U1/en not_active IP Right Cessation
-
2002
- 2002-03-08 CA CA2406372A patent/CA2406372C/en not_active Expired - Fee Related
- 2002-03-08 IL IL152968A patent/IL152968A/en active IP Right Grant
- 2002-03-08 KR KR1020027014282A patent/KR100898842B1/en active IP Right Grant
- 2002-03-08 JP JP2002577936A patent/JP3697242B2/en not_active Expired - Lifetime
- 2002-03-08 AT AT02703390T patent/ATE477342T1/en active
- 2002-03-08 WO PCT/AT2002/000077 patent/WO2002079532A2/en active Application Filing
- 2002-03-08 RU RU2003131683/02A patent/RU2281835C2/en not_active IP Right Cessation
- 2002-03-08 ES ES02703390T patent/ES2346190T3/en not_active Expired - Lifetime
- 2002-03-08 EP EP02703390A patent/EP1373586B1/en not_active Expired - Lifetime
- 2002-03-08 CZ CZ2002-3932A patent/CZ304422B6/en not_active IP Right Cessation
- 2002-03-08 DE DE50214577T patent/DE50214577D1/en not_active Expired - Lifetime
- 2002-11-22 US US10/302,204 patent/US6852274B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO02079532A2 * |
Also Published As
Publication number | Publication date |
---|---|
KR20030007549A (en) | 2003-01-23 |
IL152968A0 (en) | 2003-06-24 |
US20030061906A1 (en) | 2003-04-03 |
US6852274B2 (en) | 2005-02-08 |
EP1373586B1 (en) | 2010-08-11 |
RU2003131683A (en) | 2005-02-10 |
ES2346190T3 (en) | 2010-10-13 |
DE50214577D1 (en) | 2010-09-23 |
KR100898842B1 (en) | 2009-05-21 |
IL152968A (en) | 2007-10-31 |
CZ304422B6 (en) | 2014-04-30 |
JP2004518825A (en) | 2004-06-24 |
WO2002079532A2 (en) | 2002-10-10 |
JP3697242B2 (en) | 2005-09-21 |
AT4929U1 (en) | 2002-01-25 |
ATE477342T1 (en) | 2010-08-15 |
WO2002079532A3 (en) | 2003-02-27 |
CA2406372C (en) | 2010-09-14 |
RU2281835C2 (en) | 2006-08-20 |
CA2406372A1 (en) | 2002-10-16 |
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