EP1373585A2 - Method for producing a hard metal projection - Google Patents
Method for producing a hard metal projectionInfo
- Publication number
- EP1373585A2 EP1373585A2 EP02703388A EP02703388A EP1373585A2 EP 1373585 A2 EP1373585 A2 EP 1373585A2 EP 02703388 A EP02703388 A EP 02703388A EP 02703388 A EP02703388 A EP 02703388A EP 1373585 A2 EP1373585 A2 EP 1373585A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hard metal
- wet sludge
- producing
- drying
- spray
- 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
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1084—Alloys containing non-metals by mechanical alloying (blending, milling)
-
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic 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
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- 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
Definitions
- Paraffin as a pressing aid and water as a grinding medium.
- the powder mixture is then cooled as quickly as possible in order to limit oxidation of the powder.
- the powder mixture is kneaded. After cooling, if not already present in the powder mixture, the binder metal components are added and the powder mixture is ground in water. The resulting wet sludge is then e.g.
- FIG. 1 shows the basic illustration of a spray tower for the particularly advantageous production of hard metal granules from a wet sludge produced according to the invention.
- the spray tower -1- consists of a cylindrical section -2- and an adjoining, tapered section -3-.
- the spray tower -1- works in countercurrent on the fountain principle, ie the gas stream for drying the wet sludge is fed in at the upper end -11- of the cylindrical section -2- and blown downwards, while the wet sludge to be atomized is blown at the lower end of the cylindrical section Section -2- is sprayed over a spray lance -4- with a nozzle opening -5- according to the principle of a fountain upwards against the direction of the gas flow -6-.
- a waxed hard metal granulate with an average grain size of 125 ⁇ m, consisting of, apart from the 2% wax content (paraffin), 6% by weight cobalt, 0.4% by weight vanadium carbide, the rest tungsten carbide, 36 kg cobalt powder with a medium Grain size of approximately 0.8 ⁇ m FSSS and an oxygen content of 0.56% by weight, 2.4 kg of vanadium carbide powder with an average grain size of approximately 1.2 ⁇ m FSSS and an oxygen content of 0.25% by weight and 561.6 kg
- 2000 kg of hard metal balls with a diameter of 9 mm were used as grinding media, the attritor speed was 78 rpm, the
- the spray tower was designed to work in counterflow according to the fountain principle. Air was used as the gas for drying the wet sludge, which air was fed to the spray tower at 4000 m 3 / h.
- FIG. 3 shows an image of the hard metal granulate produced according to the example with an average grain size of 125 ⁇ m in a 50-fold magnification.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Glanulating (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Crushing And Grinding (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Collating Specific Patterns (AREA)
- Treatment Of Sludge (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK02703388T DK1373585T4 (en) | 2001-03-29 | 2002-03-08 | Process for making a portion of hard metal |
AT02703388T ATE295903T1 (en) | 2001-03-29 | 2002-03-08 | METHOD FOR PRODUCING A CARBIDE METAL APPROACH |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0023001U AT4928U1 (en) | 2001-03-29 | 2001-03-29 | METHOD FOR PRODUCING A HARD METAL APPROACH |
AT2302001 | 2001-03-29 | ||
PCT/AT2002/000075 WO2002079531A2 (en) | 2001-03-29 | 2002-03-08 | Method for producing a hard metal projection |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1373585A2 true EP1373585A2 (en) | 2004-01-02 |
EP1373585B1 EP1373585B1 (en) | 2005-05-18 |
EP1373585B2 EP1373585B2 (en) | 2009-07-29 |
Family
ID=3484997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02703388A Expired - Lifetime EP1373585B2 (en) | 2001-03-29 | 2002-03-08 | Method for producing a hard metal projection |
Country Status (17)
Country | Link |
---|---|
US (1) | US6733562B2 (en) |
EP (1) | EP1373585B2 (en) |
JP (1) | JP4044441B2 (en) |
KR (1) | KR100896827B1 (en) |
CN (1) | CN1206381C (en) |
AT (2) | AT4928U1 (en) |
BG (1) | BG65809B1 (en) |
BR (1) | BR0204680B1 (en) |
CA (1) | CA2409394C (en) |
DE (1) | DE50203144D1 (en) |
DK (1) | DK1373585T4 (en) |
ES (1) | ES2240693T5 (en) |
IL (1) | IL152969A (en) |
MX (1) | MXPA02011766A (en) |
PL (1) | PL201615B1 (en) |
TW (1) | TW565482B (en) |
WO (1) | WO2002079531A2 (en) |
Families Citing this family (41)
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 |
DE102004053222B3 (en) * | 2004-11-04 | 2006-01-26 | Zschimmer & Schwarz Gmbh & Co. Kg Chemische Fabriken | Liquid, its use for the preparation of powder mixtures based on iron or stainless steel, and a process for the preparation of powder mixtures based on iron or stainless steel |
US7470307B2 (en) * | 2005-03-29 | 2008-12-30 | Climax Engineered Materials, Llc | Metal powders and methods for producing the same |
AT9143U1 (en) * | 2006-05-02 | 2007-05-15 | Ceratizit Austria Gmbh | METHOD FOR PRODUCING A HARDMETAL PRODUCT |
DE102006043581B4 (en) * | 2006-09-12 | 2011-11-03 | Artur Wiegand | Method and device for producing a cemented carbide or cermet mixture |
DE102007004937B4 (en) * | 2007-01-26 | 2008-10-23 | H.C. Starck Gmbh | metal formulations |
US8500857B2 (en) | 2007-05-21 | 2013-08-06 | Peter Eisenberger | Carbon dioxide capture/regeneration method using gas 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 |
US8197885B2 (en) * | 2008-01-11 | 2012-06-12 | Climax Engineered Materials, Llc | Methods for producing sodium/molybdenum power compacts |
SE533922C2 (en) * | 2008-12-18 | 2011-03-01 | Seco Tools Ab | Ways to manufacture cemented carbide products |
EP2246113A1 (en) * | 2009-04-29 | 2010-11-03 | Sandvik Intellectual Property AB | Process for milling cermet or cemented carbide powder mixtures |
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 |
US9332776B1 (en) * | 2010-09-27 | 2016-05-10 | ZoomEssence, Inc. | Methods and apparatus for low heat spray drying |
CN102717061A (en) * | 2011-03-29 | 2012-10-10 | 厦门钨业股份有限公司 | A paraffin base compound forming agent for a water base cemented carbide mixture |
CN102974831B (en) * | 2011-09-05 | 2015-12-02 | 龙岩市华锐硬质合金工具有限公司 | The recovery and reusing and recycling method of waste and old tungsten carbide tipped tool |
US20130095999A1 (en) | 2011-10-13 | 2013-04-18 | Georgia Tech Research Corporation | Methods of making the supported polyamines and structures including supported polyamines |
CN102649156A (en) * | 2012-03-09 | 2012-08-29 | 成都邦普合金材料有限公司 | Method for adding hard alloy mixture paraffin wax shaping agent |
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 |
AU2015374114B2 (en) | 2014-12-29 | 2018-07-26 | Bioventus, Llc | Systems and methods for improved delivery of osteoinductive molecules in bone repair |
CN104785771B (en) * | 2015-03-17 | 2019-04-19 | 厦门钨业股份有限公司 | Ultra-fine emulsifying wax forming agent and preparation method suitable for the water base mixture of hard alloy |
CN106319317A (en) * | 2015-06-18 | 2017-01-11 | 河北小蜜蜂工具集团有限公司 | Blank formula for high-strength petroleum drill bit and preparation method thereof |
CN105642904B (en) * | 2016-01-05 | 2019-07-09 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | A kind of preparation method and device of nano metal composite coating material |
CN106269158A (en) * | 2016-08-25 | 2017-01-04 | 贺州市创伟冶金耐材有限公司 | A kind of production method making steel covering slag |
CN106544538B (en) * | 2016-12-23 | 2018-09-07 | 苏州新锐合金工具股份有限公司 | The control method of powder oxygen content in a kind of Investigation for Super-fine Cermets preparation process |
FI128311B (en) | 2017-02-17 | 2020-03-13 | Teknologian Tutkimuskeskus Vtt Oy | Method for producing Hard Metal Powder and Hard Metal Powder |
US9993787B1 (en) | 2017-08-04 | 2018-06-12 | ZoomEssence, Inc. | Ultrahigh efficiency spray drying apparatus and process |
WO2019028446A1 (en) | 2017-08-04 | 2019-02-07 | ZoomEssence, Inc. | Ultrahigh efficiency spray drying apparatus and process |
US10486173B2 (en) | 2017-08-04 | 2019-11-26 | ZoomEssence, Inc. | Ultrahigh efficiency spray drying apparatus and process |
US9861945B1 (en) | 2017-08-04 | 2018-01-09 | ZoomEssence, Inc. | Ultrahigh efficiency spray drying apparatus and process |
US10155234B1 (en) | 2017-08-04 | 2018-12-18 | ZoomEssence, Inc. | Ultrahigh efficiency spray drying apparatus and process |
US10569244B2 (en) | 2018-04-28 | 2020-02-25 | ZoomEssence, Inc. | Low temperature spray drying of carrier-free compositions |
CN109365823B (en) * | 2018-10-25 | 2021-02-02 | 上海材料研究所 | Integral hard alloy hob and manufacturing process thereof |
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 |
CN117772382A (en) * | 2024-02-28 | 2024-03-29 | 中科雅丽科技有限公司 | Fine control adjustment method for fineness of glass microsphere grinding powder |
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DE281359C (en) | ||||
US4070184A (en) * | 1976-09-24 | 1978-01-24 | Gte Sylvania Incorporated | Process for producing refractory carbide grade powder |
US4456484A (en) * | 1982-04-05 | 1984-06-26 | Gte Products Corporation | Process for producing refractory powder |
US4478888A (en) * | 1982-04-05 | 1984-10-23 | Gte Products Corporation | Process for producing refractory powder |
US4397889A (en) | 1982-04-05 | 1983-08-09 | Gte Products Corporation | Process for producing refractory powder |
US4902471A (en) * | 1989-09-11 | 1990-02-20 | Gte Products Corporation | Method for producing metal carbide grade powders |
US5045277A (en) * | 1990-09-10 | 1991-09-03 | Gte Products Corporation | Method of producing metal carbide grade powders and controlling the shrinkage of articles made therefrom |
US5007957A (en) * | 1990-09-10 | 1991-04-16 | Gte Products Corporation | Method for producing tungsten carbide grade powders suitable for isostatic compaction |
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 |
-
2001
- 2001-03-29 AT AT0023001U patent/AT4928U1/en not_active IP Right Cessation
-
2002
- 2002-02-22 TW TW091103118A patent/TW565482B/en not_active IP Right Cessation
- 2002-03-08 CA CA002409394A patent/CA2409394C/en not_active Expired - Fee Related
- 2002-03-08 BR BRPI0204680-6A patent/BR0204680B1/en not_active IP Right Cessation
- 2002-03-08 PL PL359344A patent/PL201615B1/en unknown
- 2002-03-08 IL IL152969A patent/IL152969A/en active IP Right Grant
- 2002-03-08 MX MXPA02011766A patent/MXPA02011766A/en active IP Right Grant
- 2002-03-08 ES ES02703388T patent/ES2240693T5/en not_active Expired - Lifetime
- 2002-03-08 EP EP02703388A patent/EP1373585B2/en not_active Expired - Lifetime
- 2002-03-08 CN CNB028010051A patent/CN1206381C/en not_active Expired - Fee Related
- 2002-03-08 DE DE50203144T patent/DE50203144D1/en not_active Expired - Lifetime
- 2002-03-08 AT AT02703388T patent/ATE295903T1/en active
- 2002-03-08 KR KR1020027014246A patent/KR100896827B1/en active IP Right Grant
- 2002-03-08 DK DK02703388T patent/DK1373585T4/en active
- 2002-03-08 JP JP2002577935A patent/JP4044441B2/en not_active Expired - Lifetime
- 2002-03-08 WO PCT/AT2002/000075 patent/WO2002079531A2/en active IP Right Grant
- 2002-10-28 BG BG107223A patent/BG65809B1/en unknown
- 2002-11-22 US US10/302,216 patent/US6733562B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO02079531A3 * |
Also Published As
Publication number | Publication date |
---|---|
JP4044441B2 (en) | 2008-02-06 |
IL152969A (en) | 2006-06-11 |
US20030075012A1 (en) | 2003-04-24 |
CN1460126A (en) | 2003-12-03 |
MXPA02011766A (en) | 2003-04-10 |
DE50203144D1 (en) | 2005-06-23 |
BR0204680A (en) | 2003-06-10 |
JP2004518824A (en) | 2004-06-24 |
CN1206381C (en) | 2005-06-15 |
DK1373585T3 (en) | 2005-09-05 |
ES2240693T3 (en) | 2005-10-16 |
AT4928U1 (en) | 2002-01-25 |
KR20030007547A (en) | 2003-01-23 |
CA2409394C (en) | 2007-06-19 |
KR100896827B1 (en) | 2009-05-12 |
CA2409394A1 (en) | 2002-11-19 |
US6733562B2 (en) | 2004-05-11 |
TW565482B (en) | 2003-12-11 |
PL201615B1 (en) | 2009-04-30 |
ES2240693T5 (en) | 2009-10-30 |
BR0204680B1 (en) | 2010-10-05 |
ATE295903T1 (en) | 2005-06-15 |
IL152969A0 (en) | 2003-06-24 |
WO2002079531A3 (en) | 2002-11-28 |
BG107223A (en) | 2003-07-31 |
EP1373585B2 (en) | 2009-07-29 |
BG65809B1 (en) | 2009-12-31 |
WO2002079531A2 (en) | 2002-10-10 |
PL359344A1 (en) | 2004-08-23 |
DK1373585T4 (en) | 2009-11-09 |
EP1373585B1 (en) | 2005-05-18 |
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