JPS6431552A - Production of water soluble core - Google Patents

Production of water soluble core

Info

Publication number
JPS6431552A
JPS6431552A JP18524287A JP18524287A JPS6431552A JP S6431552 A JPS6431552 A JP S6431552A JP 18524287 A JP18524287 A JP 18524287A JP 18524287 A JP18524287 A JP 18524287A JP S6431552 A JPS6431552 A JP S6431552A
Authority
JP
Japan
Prior art keywords
core
binder
parts
gypsum
water
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
JP18524287A
Other languages
Japanese (ja)
Inventor
Hidehiko Wakuta
Akihiro Sagara
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.)
Suzuki Motor Corp
Original Assignee
Suzuki 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 Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP18524287A priority Critical patent/JPS6431552A/en
Publication of JPS6431552A publication Critical patent/JPS6431552A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads

Abstract

PURPOSE:To improve working environment and to reduce the production cost by blending the prescribed ratio of binder, gypsum and water to refractory particles and hardening a core after molding and drying. CONSTITUTION:The core is formed by mixing under ratio of 0.5-10 parts of the binder of dextrin, etc., 1-6 parts of the gypsum and 1-20 parts of the water to 100 parts of the refractory particles as aggregate. The core is hardened with dried carbon dioxide gas or hot blasting, etc. After pouring the casting, by acting the water with the core, the core is naturally collapsed for short time of about few minutes. This reason is that the binder is decomposed with heat during pouring and binding force is eliminated. Generation of poison gas during pouring is eliminated and as the gypsum and the binder as the material are obtd. at low cost, the production cost of the core is reduced.
JP18524287A 1987-07-24 1987-07-24 Production of water soluble core Pending JPS6431552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18524287A JPS6431552A (en) 1987-07-24 1987-07-24 Production of water soluble core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18524287A JPS6431552A (en) 1987-07-24 1987-07-24 Production of water soluble core

Publications (1)

Publication Number Publication Date
JPS6431552A true JPS6431552A (en) 1989-02-01

Family

ID=16167375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18524287A Pending JPS6431552A (en) 1987-07-24 1987-07-24 Production of water soluble core

Country Status (1)

Country Link
JP (1) JPS6431552A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262100A (en) * 1990-07-11 1993-11-16 Advanced Plastics Partnership Method of core removal from molded products

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5332827A (en) * 1976-09-09 1978-03-28 Nakata Giken Kk Moulding method by using waterrsoluble paste as binder
JPS54136525A (en) * 1978-04-17 1979-10-23 Hitachi Ltd Casting material
JPS5524983A (en) * 1978-08-14 1980-02-22 Ibiden Co Ltd Melt use desulfurizer and producing the same
JPS5950946A (en) * 1982-09-16 1984-03-24 Kiriyuu Kikai Kk Core sand for casting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5332827A (en) * 1976-09-09 1978-03-28 Nakata Giken Kk Moulding method by using waterrsoluble paste as binder
JPS54136525A (en) * 1978-04-17 1979-10-23 Hitachi Ltd Casting material
JPS5524983A (en) * 1978-08-14 1980-02-22 Ibiden Co Ltd Melt use desulfurizer and producing the same
JPS5950946A (en) * 1982-09-16 1984-03-24 Kiriyuu Kikai Kk Core sand for casting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262100A (en) * 1990-07-11 1993-11-16 Advanced Plastics Partnership Method of core removal from molded products

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