EP1277564A2 - Procédé de compression de matériaux en poudre - Google Patents

Procédé de compression de matériaux en poudre Download PDF

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Publication number
EP1277564A2
EP1277564A2 EP02015132A EP02015132A EP1277564A2 EP 1277564 A2 EP1277564 A2 EP 1277564A2 EP 02015132 A EP02015132 A EP 02015132A EP 02015132 A EP02015132 A EP 02015132A EP 1277564 A2 EP1277564 A2 EP 1277564A2
Authority
EP
European Patent Office
Prior art keywords
deformation
die plate
pressing
forces
punches
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
Application number
EP02015132A
Other languages
German (de)
English (en)
Other versions
EP1277564B1 (fr
EP1277564A3 (fr
Inventor
Jürgen Hinzpeter
Ulrich Zeuschner
Ingo Schmidt
Thomas Pannewitz
Udo Baltruschat
Thorsten Ehrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fette GmbH
Original Assignee
Fette GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fette GmbH filed Critical Fette GmbH
Publication of EP1277564A2 publication Critical patent/EP1277564A2/fr
Publication of EP1277564A3 publication Critical patent/EP1277564A3/fr
Application granted granted Critical
Publication of EP1277564B1 publication Critical patent/EP1277564B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/005—Control arrangements

Definitions

  • a common way to press powder material is to Form space in a so-called die plate and using a Upper and one lower stamp to produce the compact. Usually the Lower punch inserted into a predetermined position in the die hole, after which the filling with powder material takes place. Then with the help of Upper stamp of the compact shaped. With the help of such a method e.g. Pressed metal powder for the production of molded parts by the sintering process.
  • the aim is to make the compact relatively precise if possible shape in terms of its geometric dimensions and density, so that the desired dimensional accuracy is achieved later after the sintering process.
  • the invention has for its object a method for pressing To create powder material with which a compact is reproducibly manufactured can be while protecting the pressing device against unwanted Damage due to insufficient deformation of the die plate.
  • the invention is based on the fact that the bending force acting on the die plate arises from the difference between the press forces of the upper and lower punches.
  • the inventive method is a curve or a table for the dependency the deformation of the die plate from the applied pressing forces.
  • the delivery routes of the press rams is also essential to know which misalignments of the die hole change with different deformations to adjust. Therefore, in the method according to the invention during the Pressing process from time to time or continuously the pressing force to the Stamps measured to determine the respective deformation.
  • To a specific one Deformation value of the die plate includes a predetermined delivery path for the Ram. It is therefore possible using the method according to the invention during the pressing process the length of the delivery path according to the described Correct measurements. With the help of the invention it is therefore achieved that the upper punch is moved precisely to the edge of the die hole, but without touching them significantly.
  • a pressing device 10 shown in Figure 1 has a die plate 12, with a die hole 14 with which an upper punch 16 and a lower punch 18th interact.
  • the power devices that operate the punches 16, 18 are not shown. They are conventional and e.g. hydraulic acting. It is with Such pressing devices possible to position the ram in the ⁇ m range. Is between the force devices, not shown, and the punches 16, 18 one load cell 20 or 22 is arranged.
  • the die plate 12 rests complaints 24, 26
  • the actual shape space of the die bore 14 is in cross section conical or trapezoidal with two inclined surfaces 26. If a circular one Form space is present, there is naturally only a conical surface.
  • the molding space which can be seen in Figure 1 serves e.g. for the production of a compact Metal powder material for the production of an indexable insert after the sintering process, e.g. for milling or drilling tools or the like.
  • Both ram 16, 18 move into the bore 14, with the upper ram moving towards the edge 28 is and thus specifies the bearing of the top of the compact, during the Lower punch is brought up to the edge 30 in order to specify the thickness of the compact.
  • the lower punch 18 first becomes one Filling position advanced. Then it is filled with powder material. Then the upper punch 16 is actuated and moved up to the edge 28, to deform the compact by pressing. At the same time we have the lower stamp 18 driven to the edge 30.
  • the method of the pressing device is shown in the block diagram from FIG 10 clearly shown in Figure 1.
  • the function is tabulated in a computer 30 stored between the deformation force on the die plate 12 and thereby induced deformation. More specifically, is the displacement of the die hole or the edge 28 deposited relative to the deformation force.
  • the investigation this relationship can be done with the help of suitable measurements or calculations, before production starts.
  • the powder material to be pressed is known and also the density required for the compact.
  • the deformation can be in the case of the individual deformation forces, which is the difference between the pressing forces the stamp 16, 18 are formed, determine.
  • the computer If the value of the pressing forces is too low, the computer generates 30 a shutdown signal for the press device 10. This will damage avoided by stamp and die plate.
EP02015132A 2001-07-19 2002-07-06 Procédé de compression de matériaux en poudre Expired - Lifetime EP1277564B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10135283A DE10135283C2 (de) 2001-07-19 2001-07-19 Verfahren zum Verpressen von Pulvermaterial
DE10135283 2001-07-19

Publications (3)

Publication Number Publication Date
EP1277564A2 true EP1277564A2 (fr) 2003-01-22
EP1277564A3 EP1277564A3 (fr) 2004-01-28
EP1277564B1 EP1277564B1 (fr) 2006-09-13

Family

ID=7692423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015132A Expired - Lifetime EP1277564B1 (fr) 2001-07-19 2002-07-06 Procédé de compression de matériaux en poudre

Country Status (4)

Country Link
US (1) US6827889B2 (fr)
EP (1) EP1277564B1 (fr)
AT (1) ATE339298T1 (fr)
DE (2) DE10135283C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103718259A (zh) * 2011-07-27 2014-04-09 住友电气工业株式会社 压粉成形体
CN115093199A (zh) * 2022-06-30 2022-09-23 蒋波 一种负极材料碳化专用耐材坩埚及其制作工艺

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7708702B2 (en) * 2006-01-26 2010-05-04 Roche Diagnostics Operations, Inc. Stack magazine system
DE102008035301B3 (de) * 2008-07-29 2010-03-25 Fette Gmbh Pulverpresse
DE102013201312A1 (de) * 2013-01-28 2014-07-31 Robert Bosch Gmbh Kern für ein induktives Bauelement und Verfahren zur Herstellung eines Kerns für ein induktives Bauelement
EP4034375A1 (fr) 2019-09-27 2022-08-03 Korsch AG Dispositif et procédé pour surveiller une machine à comprimer de préférence en cours de fonctionnement au moyen d'un système de mesure placé sur un poinçon
CN113619177B (zh) * 2021-07-07 2023-06-30 浙江明恩新材料科技有限公司 一种耐高温改性材料制品的生产设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951716A1 (de) * 1979-12-19 1981-07-02 Mannesmann AG, 4000 Düsseldorf Verfahren und vorrichtung zum pressen von formkoerpern
JPS579600A (en) * 1980-06-19 1982-01-19 Yoshitsuka Seiki:Kk Press and detecting method of its abnormal pressing force
US5043111A (en) * 1989-06-15 1991-08-27 Mannesmann Ag Process and apparatus for the manfuacture of dimensionally accurate die-formed parts
JPH049639A (ja) * 1990-04-26 1992-01-14 Nippon Steel Corp 粉体の金型成形時の摩擦係数を求める方法
JPH0655297A (ja) * 1991-07-01 1994-03-01 Yoshitsuka Seiki:Kk 粉末成形プレスの加圧制御方法及び装置
DE19846210A1 (de) * 1998-10-07 2000-04-13 Dorst Masch & Anlagen Presse zum Herstellen von Formkörpern
US6074584A (en) * 1997-04-24 2000-06-13 Wilhelm Fette Gmbh Method and device for manufacturing pressed parts from hard metal, ceramic, sintered metal or likewise
EP1048450A2 (fr) * 1999-04-30 2000-11-02 Wilhelm Fette GmbH Procédé pour déterminer la position d'un poinçon dans une presse à poudre

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3520203A1 (de) * 1985-06-05 1986-12-11 Wilhelm Fette Gmbh, 2053 Schwarzenbek Rundlaeufer-tablettiermaschine und verfahren zur steuerung ihrer druckrollen
DE3823417A1 (de) * 1988-07-11 1990-01-18 Fette Wilhelm Gmbh Verfahren und einrichtung zum ueberwachen der presskraefte der stempel einer tablettenpresse
US5211964A (en) * 1991-05-20 1993-05-18 Westinghouse Electric Corp. Press machine with means to adjust punching force
DE10010671C2 (de) * 2000-03-04 2002-03-14 Fette Wilhelm Gmbh Verfahren zur Herstellung von Preßteilen durch Pressen von Metallpulver und anschließendes Sintern des Preßlings

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951716A1 (de) * 1979-12-19 1981-07-02 Mannesmann AG, 4000 Düsseldorf Verfahren und vorrichtung zum pressen von formkoerpern
JPS579600A (en) * 1980-06-19 1982-01-19 Yoshitsuka Seiki:Kk Press and detecting method of its abnormal pressing force
US5043111A (en) * 1989-06-15 1991-08-27 Mannesmann Ag Process and apparatus for the manfuacture of dimensionally accurate die-formed parts
JPH049639A (ja) * 1990-04-26 1992-01-14 Nippon Steel Corp 粉体の金型成形時の摩擦係数を求める方法
JPH0655297A (ja) * 1991-07-01 1994-03-01 Yoshitsuka Seiki:Kk 粉末成形プレスの加圧制御方法及び装置
US6074584A (en) * 1997-04-24 2000-06-13 Wilhelm Fette Gmbh Method and device for manufacturing pressed parts from hard metal, ceramic, sintered metal or likewise
DE19846210A1 (de) * 1998-10-07 2000-04-13 Dorst Masch & Anlagen Presse zum Herstellen von Formkörpern
EP1048450A2 (fr) * 1999-04-30 2000-11-02 Wilhelm Fette GmbH Procédé pour déterminer la position d'un poinçon dans une presse à poudre

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 069 (M-125), 30. April 1982 (1982-04-30) & JP 57 009600 A (YOSHITSUKA SEIKI:KK), 19. Januar 1982 (1982-01-19) *
PATENT ABSTRACTS OF JAPAN vol. 016, no. 159 (P-1339), 17. April 1992 (1992-04-17) & JP 04 009639 A (NIPPON STEEL CORP), 14. Januar 1992 (1992-01-14) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 289 (M-1614), 2. Juni 1994 (1994-06-02) & JP 06 055297 A (YOSHITSUKA SEIKI:KK), 1. März 1994 (1994-03-01) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103718259A (zh) * 2011-07-27 2014-04-09 住友电气工业株式会社 压粉成形体
US9251946B2 (en) 2011-07-27 2016-02-02 Sumitomo Electric Industries, Ltd. Compact
CN103718259B (zh) * 2011-07-27 2016-04-13 住友电气工业株式会社 压粉成形体
CN115093199A (zh) * 2022-06-30 2022-09-23 蒋波 一种负极材料碳化专用耐材坩埚及其制作工艺
CN115093199B (zh) * 2022-06-30 2023-12-22 青海天蓝新能源材料有限公司 一种负极材料碳化专用耐材坩埚及其制作工艺

Also Published As

Publication number Publication date
US6827889B2 (en) 2004-12-07
EP1277564B1 (fr) 2006-09-13
US20030024418A1 (en) 2003-02-06
EP1277564A3 (fr) 2004-01-28
DE10135283C2 (de) 2003-09-18
ATE339298T1 (de) 2006-10-15
DE50208114D1 (de) 2006-10-26
DE10135283A1 (de) 2003-02-20

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