JPS6444706A - Molded object and molding process - Google Patents

Molded object and molding process

Info

Publication number
JPS6444706A
JPS6444706A JP20165087A JP20165087A JPS6444706A JP S6444706 A JPS6444706 A JP S6444706A JP 20165087 A JP20165087 A JP 20165087A JP 20165087 A JP20165087 A JP 20165087A JP S6444706 A JPS6444706 A JP S6444706A
Authority
JP
Japan
Prior art keywords
mold
molded object
split
ridge
molding
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
JP20165087A
Other languages
Japanese (ja)
Other versions
JPH0720615B2 (en
Inventor
Hiroshi Shirakawa
Kokichi Togawa
Shigeo Ito
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.)
Fuji Yogyo Kk
NGK Insulators Ltd
Original Assignee
Fuji Yogyo Kk
NGK Insulators 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 Fuji Yogyo Kk, NGK Insulators Ltd filed Critical Fuji Yogyo Kk
Priority to JP20165087A priority Critical patent/JPH0720615B2/en
Publication of JPS6444706A publication Critical patent/JPS6444706A/en
Publication of JPH0720615B2 publication Critical patent/JPH0720615B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Moulds, Cores, Or Mandrels (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

PURPOSE:To cause cracks not to be generated in the process in which a molded object is taken out from a mold after molding by a method in which a ridge is formed on the position corresponding to the mating part of the mutual mold pieces of a split mond on the surface of a molded object, and a recessed groove is formed in the mating part of each mold piece of the split mold. CONSTITUTION:A molded object 5 has a cylindrical shape as a whole, and has ridges 6 integrally formed respectively along the axial split lines of this cylindrical body on its peripheral surface. The ridge 6 is provided with the angle-shape in cross-section with the vertical angle of about 90 deg.. The vertical angle of the ridge 6 is preferably 90-150 deg., and its height is preferably about 1-5mm. A split mold 7 is composed of the outer mold made of the combination of two arcuate mold pieces 8, an almost columnar inner mold 9 and the bottom mold 11 closing the bottom end of a vertical and cylindrical molding cavity 10. When two mold pieces 8 are assembled into a cylindrical body by using a tightening band 13, on the molding surface 8b of the outer periphery of the molding cavity the recessed groove 14 of V-shape extending to the side of the molding cavity along the mating part 8a of the adjacent mold pieces, is formed.
JP20165087A 1987-08-12 1987-08-12 Molded article and its molding method Expired - Fee Related JPH0720615B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20165087A JPH0720615B2 (en) 1987-08-12 1987-08-12 Molded article and its molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20165087A JPH0720615B2 (en) 1987-08-12 1987-08-12 Molded article and its molding method

Publications (2)

Publication Number Publication Date
JPS6444706A true JPS6444706A (en) 1989-02-17
JPH0720615B2 JPH0720615B2 (en) 1995-03-08

Family

ID=16444604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20165087A Expired - Fee Related JPH0720615B2 (en) 1987-08-12 1987-08-12 Molded article and its molding method

Country Status (1)

Country Link
JP (1) JPH0720615B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004183281A (en) * 2002-12-02 2004-07-02 Hokuriku Regional Development Bureau Ministry Land Infrastructure & Transport Construction method for concrete structure, form block used in the method, and form block manufacturing method
CN104493962A (en) * 2014-12-31 2015-04-08 娄底市高盛板业有限公司 Formwork casing component bottom plate mold and manufacturing method thereof
CN108556271A (en) * 2018-05-30 2018-09-21 芜湖优聚塑模有限公司 A kind of lower pool body molding die of leak-proof digestion tank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004183281A (en) * 2002-12-02 2004-07-02 Hokuriku Regional Development Bureau Ministry Land Infrastructure & Transport Construction method for concrete structure, form block used in the method, and form block manufacturing method
CN104493962A (en) * 2014-12-31 2015-04-08 娄底市高盛板业有限公司 Formwork casing component bottom plate mold and manufacturing method thereof
CN108556271A (en) * 2018-05-30 2018-09-21 芜湖优聚塑模有限公司 A kind of lower pool body molding die of leak-proof digestion tank

Also Published As

Publication number Publication date
JPH0720615B2 (en) 1995-03-08

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees