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JPS57200502A - Vacuum powder molding method - Google Patents

Vacuum powder molding method

Info

Publication number
JPS57200502A
JPS57200502A JP8376881A JP8376881A JPS57200502A JP S57200502 A JPS57200502 A JP S57200502A JP 8376881 A JP8376881 A JP 8376881A JP 8376881 A JP8376881 A JP 8376881A JP S57200502 A JPS57200502 A JP S57200502A
Authority
JP
Japan
Prior art keywords
powder
die
filled
upper punch
punch
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
JP8376881A
Other languages
Japanese (ja)
Other versions
JPS5837361B2 (en
Inventor
Kanbe Kimura
Takeshi Katagiri
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.)
Yoshizuka Seiki Co Ltd
Original Assignee
Yoshizuka Seiki Co Ltd
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 Yoshizuka Seiki Co Ltd filed Critical Yoshizuka Seiki Co Ltd
Priority to JP8376881A priority Critical patent/JPS5837361B2/en
Publication of JPS57200502A publication Critical patent/JPS57200502A/en
Publication of JPS5837361B2 publication Critical patent/JPS5837361B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0005—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
    • B30B15/0017—Deairing means
    • 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
    • B22F3/02—Compacting only
    • B22F3/03—Press-moulding apparatus therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)

Abstract

PURPOSE:To prepare a high density molded product generating no crack inexpensively by a small scale apparatus by a method wherein internal air is withdrawn from the powder free space in a die to form a vacuum atmosphere and the pressurization of a powder is carried out in this atmosphere. CONSTITUTION:A powder is filled above a lower punch 2 in the central pore of a die 1 and an upper punch 3 is lowered to hermetically contact the recessed part 7 inlaid to the lower part of said upper punch 3 in a freely slidably manner with the outer periphery of the opening part of the die 1 under pressure by the force of a compression spring and a filled powder free space 8 is formed between the filled powder 4 and the upper punch 3 above the filled powder 4. In this condition, air in the central pore of the die 1 is withdrawn from the space 8 through an arranged pipe 13 by a vacuum pump not shown in a figure and, after air in the powder is discharged to increase the density of the powder, pressing is carried out by the upper punch 3 to obtain a pressed powder 17 and, at last, the pressed powder 17 is knocked out by the lower punch 2.
JP8376881A 1981-06-02 1981-06-02 Vacuum powder molding method Expired JPS5837361B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8376881A JPS5837361B2 (en) 1981-06-02 1981-06-02 Vacuum powder molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8376881A JPS5837361B2 (en) 1981-06-02 1981-06-02 Vacuum powder molding method

Publications (2)

Publication Number Publication Date
JPS57200502A true JPS57200502A (en) 1982-12-08
JPS5837361B2 JPS5837361B2 (en) 1983-08-16

Family

ID=13811765

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8376881A Expired JPS5837361B2 (en) 1981-06-02 1981-06-02 Vacuum powder molding method

Country Status (1)

Country Link
JP (1) JPS5837361B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0217080A (en) * 1988-07-04 1990-01-22 Shizen Igaku Kenkyukai:Kk Operation apparatus of living body electric acting element
JP2002239797A (en) * 2000-12-04 2002-08-28 Murata Mfg Co Ltd Compacting apparatus
WO2003028618A3 (en) * 2001-09-28 2003-08-14 Mcneil Ppc Inc Systems, methods and apparatuses for manufacturing dosage forms
EP1281494A3 (en) * 2001-07-30 2003-11-19 SACMI COOPERATIVA MECCANICI IMOLA Soc. Coop. a r.l. Mould for pressing ceramic tiles, in particular large-dimension slabs

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0217080A (en) * 1988-07-04 1990-01-22 Shizen Igaku Kenkyukai:Kk Operation apparatus of living body electric acting element
JP2002239797A (en) * 2000-12-04 2002-08-28 Murata Mfg Co Ltd Compacting apparatus
EP1281494A3 (en) * 2001-07-30 2003-11-19 SACMI COOPERATIVA MECCANICI IMOLA Soc. Coop. a r.l. Mould for pressing ceramic tiles, in particular large-dimension slabs
WO2003028618A3 (en) * 2001-09-28 2003-08-14 Mcneil Ppc Inc Systems, methods and apparatuses for manufacturing dosage forms
US6767200B2 (en) 2001-09-28 2004-07-27 Mcneil-Ppc, Inc. Systems, methods and apparatuses for manufacturing dosage forms
US7323129B2 (en) 2001-09-28 2008-01-29 Omj Ireland Limited Systems, methods and apparatuses for manufacturing dosage forms
US7361006B2 (en) 2001-09-28 2008-04-22 Mcneil-Ppc, Inc. Systems, methods and apparatuses for manufacturing dosage forms

Also Published As

Publication number Publication date
JPS5837361B2 (en) 1983-08-16

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