JPS644304A - Working method for loose piece for extrusion forming - Google Patents

Working method for loose piece for extrusion forming

Info

Publication number
JPS644304A
JPS644304A JP16024087A JP16024087A JPS644304A JP S644304 A JPS644304 A JP S644304A JP 16024087 A JP16024087 A JP 16024087A JP 16024087 A JP16024087 A JP 16024087A JP S644304 A JPS644304 A JP S644304A
Authority
JP
Japan
Prior art keywords
loose piece
shape
working
split pin
piece
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.)
Pending
Application number
JP16024087A
Other languages
Japanese (ja)
Inventor
Satoru Horide
Shinichi Hashimoto
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.)
Inax Corp
Original Assignee
Inax Corp
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 Inax Corp filed Critical Inax Corp
Priority to JP16024087A priority Critical patent/JPS644304A/en
Publication of JPS644304A publication Critical patent/JPS644304A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To prevent the quality deterioration caused by the change, etc. of the surface shape of a tile due to the asymmetry of a split pin by forming the upper and lower surfaces of a the split pin by using the working of electrical discharge. CONSTITUTION:The preform 1a of the blocklike loose piece similar to a loose piece 1 after completion obtained by lathe working, is formed, and said piece is composed of the supporting part 2a of a rectangular pillar shape and the formed part 3a with a rectangular section. Next, the discharging electrode 20 of a rectangular shape is provided, and the electrode is provided with the shape of a through hole 20a similar to the sectional shape of the formed part of the loose piece after its completion. This discharging electrode 20 is fitted into the formed part 3a of said preform of the loose piece and the working of electrical discharge is carried out, and then the allowance S to be shaved is removed. Consequently, the side surface of the formed part 3 is formed, and simultaneously the upper and lower surface of a split pin are formed. Then, the loose piece 1 may be obtained by forming the residual unworked part.
JP16024087A 1987-06-26 1987-06-26 Working method for loose piece for extrusion forming Pending JPS644304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16024087A JPS644304A (en) 1987-06-26 1987-06-26 Working method for loose piece for extrusion forming

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16024087A JPS644304A (en) 1987-06-26 1987-06-26 Working method for loose piece for extrusion forming

Publications (1)

Publication Number Publication Date
JPS644304A true JPS644304A (en) 1989-01-09

Family

ID=15710732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16024087A Pending JPS644304A (en) 1987-06-26 1987-06-26 Working method for loose piece for extrusion forming

Country Status (1)

Country Link
JP (1) JPS644304A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102179867A (en) * 2011-03-29 2011-09-14 赵培龙 Novel machine neck for vacuum brick extruder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032606A (en) * 1983-08-01 1985-02-19 イビデン株式会社 Silicon carbide molding die and manufacture thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032606A (en) * 1983-08-01 1985-02-19 イビデン株式会社 Silicon carbide molding die and manufacture thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102179867A (en) * 2011-03-29 2011-09-14 赵培龙 Novel machine neck for vacuum brick extruder

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