JPS5586650A - Production of cast valve - Google Patents

Production of cast valve

Info

Publication number
JPS5586650A
JPS5586650A JP16153078A JP16153078A JPS5586650A JP S5586650 A JPS5586650 A JP S5586650A JP 16153078 A JP16153078 A JP 16153078A JP 16153078 A JP16153078 A JP 16153078A JP S5586650 A JPS5586650 A JP S5586650A
Authority
JP
Japan
Prior art keywords
mold
opening
casting
umbrella
inverted conical
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
JP16153078A
Other languages
Japanese (ja)
Inventor
Kumi Suzuki
Naoyoshi Watanabe
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 Central R&D Labs Inc
Original Assignee
Toyota Central R&D Labs Inc
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 Central R&D Labs Inc filed Critical Toyota Central R&D Labs Inc
Priority to JP16153078A priority Critical patent/JPS5586650A/en
Publication of JPS5586650A publication Critical patent/JPS5586650A/en
Pending legal-status Critical Current

Links

Landscapes

  • Casting Devices For Molds (AREA)

Abstract

PURPOSE: To produce valves free from casting defect, by placing a sand mold having an inverted conical opening coinciding with umbrella part opening, on a die having a cavity consisting of shaft part and umbrella part being placed with the umbrealla part side upwards, and using a compound mold thus formed.
CONSTITUTION: A die 1f for casting having a cavity 11 to make shaft part and umbrella part of a value is placed with the umbrella part side opening upwards, and a sand mold (shell mold) 2f of excellent ventilation property having a molten metal pouring port 26 provided with an inverted conical opening 261 coinciding with said umbrella part opening is placed thereon to form a compound mold. When casting by using said mold, a blow hole indicated by shaded zone is formed in the head part of the cast product, but since a valve is made by cutting off the part above the shaded zone, no defect is caused on the valve product. The angle of inclination θ of said inverted conical form should be preferably 25W45 degrees.
COPYRIGHT: (C)1980,JPO&Japio
JP16153078A 1978-12-26 1978-12-26 Production of cast valve Pending JPS5586650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16153078A JPS5586650A (en) 1978-12-26 1978-12-26 Production of cast valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16153078A JPS5586650A (en) 1978-12-26 1978-12-26 Production of cast valve

Publications (1)

Publication Number Publication Date
JPS5586650A true JPS5586650A (en) 1980-06-30

Family

ID=15736833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16153078A Pending JPS5586650A (en) 1978-12-26 1978-12-26 Production of cast valve

Country Status (1)

Country Link
JP (1) JPS5586650A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10347713B2 (en) 2017-09-15 2019-07-09 Kabushiki Kaisha Toshiba Semiconductor device having a triple region resurf structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10347713B2 (en) 2017-09-15 2019-07-09 Kabushiki Kaisha Toshiba Semiconductor device having a triple region resurf structure

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