JPS5594753A - Mold of piston for internal combustion engine - Google Patents

Mold of piston for internal combustion engine

Info

Publication number
JPS5594753A
JPS5594753A JP238879A JP238879A JPS5594753A JP S5594753 A JPS5594753 A JP S5594753A JP 238879 A JP238879 A JP 238879A JP 238879 A JP238879 A JP 238879A JP S5594753 A JPS5594753 A JP S5594753A
Authority
JP
Japan
Prior art keywords
pin
hole
mold
core
dies
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
JP238879A
Other languages
Japanese (ja)
Other versions
JPS594220B2 (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 JP238879A priority Critical patent/JPS594220B2/en
Publication of JPS5594753A publication Critical patent/JPS5594753A/en
Publication of JPS594220B2 publication Critical patent/JPS594220B2/en
Expired legal-status Critical Current

Links

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 dies having a circular space in cross section and which is capable of simultaneously casting the piston provided with a narrow insulation gap between pin-boss parts and the inside circumferential part of skirt part.
CONSTITUTION: A main core 5 is inserted into the space S of two-split outer molds 1 and its pin-boss part forming recesses 9 are opposed to the through-hole 3 of the outer dies. Thence, a sub-core 12 is inserted into the dies through the through-hole of the outer side and the end face 14 of its partition part 13 is contacted to the plate material 10 coiled and fixed to the skirt part inside surface forming part 7. At the same time, the positioning pin 16 provided to the end of the pin-hole-forming protruding part 15 into the hole 17 of the main core. If molten metal is poured into the cavity of the resultant mold, a casting 21 is obtained and the insulation gap S4 equal to the thickness of the plate material 10 is formed between the pin-boss parts 18 and the inside circumference of the skirt part 20.
COPYRIGHT: (C)1980,JPO&Japio
JP238879A 1979-01-13 1979-01-13 Mold for internal combustion engine pistons Expired JPS594220B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP238879A JPS594220B2 (en) 1979-01-13 1979-01-13 Mold for internal combustion engine pistons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP238879A JPS594220B2 (en) 1979-01-13 1979-01-13 Mold for internal combustion engine pistons

Publications (2)

Publication Number Publication Date
JPS5594753A true JPS5594753A (en) 1980-07-18
JPS594220B2 JPS594220B2 (en) 1984-01-28

Family

ID=11527839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP238879A Expired JPS594220B2 (en) 1979-01-13 1979-01-13 Mold for internal combustion engine pistons

Country Status (1)

Country Link
JP (1) JPS594220B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04327338A (en) * 1991-04-30 1992-11-16 Nissin Kogyo Kk Communicating hole forming method between cylinders in caliper body

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0520113Y2 (en) * 1986-03-05 1993-05-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04327338A (en) * 1991-04-30 1992-11-16 Nissin Kogyo Kk Communicating hole forming method between cylinders in caliper body

Also Published As

Publication number Publication date
JPS594220B2 (en) 1984-01-28

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