JPS579558A - Collapsible core - Google Patents

Collapsible core

Info

Publication number
JPS579558A
JPS579558A JP8311180A JP8311180A JPS579558A JP S579558 A JPS579558 A JP S579558A JP 8311180 A JP8311180 A JP 8311180A JP 8311180 A JP8311180 A JP 8311180A JP S579558 A JPS579558 A JP S579558A
Authority
JP
Japan
Prior art keywords
core
pressure casting
melt
molded
bending strength
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
JP8311180A
Other languages
Japanese (ja)
Inventor
Tamio Hayasaka
Mitsuyoshi Sato
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor 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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP8311180A priority Critical patent/JPS579558A/en
Publication of JPS579558A publication Critical patent/JPS579558A/en
Pending legal-status Critical Current

Links

Landscapes

  • Mold Materials And Core Materials (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE: To prevent the failure of a core during pressure casting, and facilitate the collapsion and removal of the core by providing a melt-sprayed layer of specific composition metal on the surface of the core molded to specific bending strength.
CONSTITUTION: A core 1 of about ≤30kg/cm2 bending strength is molded by adjusting the amount of addition of a binder in sand core, calcining temp., etc.. Next, a melt-sprayed layer 2 of Fe-0.3W0.8wt% C in component is provided to 0.02W 0.2mm thicknesses on the surface of the core 1. Thence, a mold coating material is coated on the surface, the core is put in the prescribed position of metallic molds, and pressure casting is accomplished. Said core is adaptable to low pressure casting, centrifugal casting, high pressure solidifying, etc.
COPYRIGHT: (C)1982,JPO&Japio
JP8311180A 1980-06-19 1980-06-19 Collapsible core Pending JPS579558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8311180A JPS579558A (en) 1980-06-19 1980-06-19 Collapsible core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8311180A JPS579558A (en) 1980-06-19 1980-06-19 Collapsible core

Publications (1)

Publication Number Publication Date
JPS579558A true JPS579558A (en) 1982-01-19

Family

ID=13793081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8311180A Pending JPS579558A (en) 1980-06-19 1980-06-19 Collapsible core

Country Status (1)

Country Link
JP (1) JPS579558A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63252661A (en) * 1987-04-08 1988-10-19 Ube Ind Ltd Sand core for pressure molding
WO2009092850A1 (en) * 2008-01-25 2009-07-30 Alteams Oy Core for high-pressure die-casting and method in high-pressure die-casting and high-pressure die-cast piece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63252661A (en) * 1987-04-08 1988-10-19 Ube Ind Ltd Sand core for pressure molding
WO2009092850A1 (en) * 2008-01-25 2009-07-30 Alteams Oy Core for high-pressure die-casting and method in high-pressure die-casting and high-pressure die-cast piece

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