JPS5594752A - Mold of piston for internal combustion engine - Google Patents

Mold of piston for internal combustion engine

Info

Publication number
JPS5594752A
JPS5594752A JP238779A JP238779A JPS5594752A JP S5594752 A JPS5594752 A JP S5594752A JP 238779 A JP238779 A JP 238779A JP 238779 A JP238779 A JP 238779A JP S5594752 A JPS5594752 A JP S5594752A
Authority
JP
Japan
Prior art keywords
pin
hole
core
mold
main core
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
JP238779A
Other languages
Japanese (ja)
Other versions
JPS594219B2 (en
Inventor
Shigekado Sakakibara
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP238779A priority Critical patent/JPS594219B2/en
Publication of JPS5594752A publication Critical patent/JPS5594752A/en
Publication of JPS594219B2 publication Critical patent/JPS594219B2/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/04—Thermal properties
    • F05C2251/042—Expansivity

Landscapes

  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE: The mold which comprises fitting the main core and sub-core of the specific shapes in the two-split outer molds whose cross section has a circular space and which is simultaneously castable the piston provided with a narrow insulation gap between the pin-boss part and the inside circumferential surface of the skirt part.
CONSTITUTION: A main core 5 is inserted into the space S of two-split outer dies 1 and its pin-boss part-forming recesses 9 are opposed to the through-hole 3 of the outer die. Thence, a sub-core 10 is inserted into the dies through the through-hole of the outer sides and the end edge outside circumference of its partition part 11 is fitted to the inside circumferntial edge of the recesses 9. At the same time, the positioning pin 14 provided at the end of the pin-hole-forming protruding part 13 is engaged in the hole 15 of the main core. If molten metal is poured into the cavity of the mold assembled in this way, a casting 19 is formed and the piston provided with a narrow insulation gap S4 between the pin-boss part 16 and the inside circumferenital surface of the skirt part 18 is readily obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP238779A 1979-01-13 1979-01-13 Mold for internal combustion engine pistons Expired JPS594219B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP238779A JPS594219B2 (en) 1979-01-13 1979-01-13 Mold for internal combustion engine pistons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP238779A JPS594219B2 (en) 1979-01-13 1979-01-13 Mold for internal combustion engine pistons

Publications (2)

Publication Number Publication Date
JPS5594752A true JPS5594752A (en) 1980-07-18
JPS594219B2 JPS594219B2 (en) 1984-01-28

Family

ID=11527815

Family Applications (1)

Application Number Title Priority Date Filing Date
JP238779A Expired JPS594219B2 (en) 1979-01-13 1979-01-13 Mold for internal combustion engine pistons

Country Status (1)

Country Link
JP (1) JPS594219B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010187696A (en) * 2010-04-27 2010-09-02 Iseki & Co Ltd Thresher
JP2011188865A (en) * 2011-05-30 2011-09-29 Iseki & Co Ltd Thresher

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010187696A (en) * 2010-04-27 2010-09-02 Iseki & Co Ltd Thresher
JP2011188865A (en) * 2011-05-30 2011-09-29 Iseki & Co Ltd Thresher

Also Published As

Publication number Publication date
JPS594219B2 (en) 1984-01-28

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