JPS56117860A - Production of mold - Google Patents

Production of mold

Info

Publication number
JPS56117860A
JPS56117860A JP1960780A JP1960780A JPS56117860A JP S56117860 A JPS56117860 A JP S56117860A JP 1960780 A JP1960780 A JP 1960780A JP 1960780 A JP1960780 A JP 1960780A JP S56117860 A JPS56117860 A JP S56117860A
Authority
JP
Japan
Prior art keywords
pattern
mold
microwave
coated
dielectric constant
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
JP1960780A
Other languages
Japanese (ja)
Other versions
JPS6313783B2 (en
Inventor
Yoshiro Hayashi
Akiyoshi Morita
Yoshio Ekino
Tokiharu Fukuda
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 JP1960780A priority Critical patent/JPS56117860A/en
Publication of JPS56117860A publication Critical patent/JPS56117860A/en
Publication of JPS6313783B2 publication Critical patent/JPS6313783B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To produce a mold while preventing the occurrence of mold cracking owing to the expansion of a pattern by sticking a material of high dielectric constant on the surface of the microwave absorptive pattern material coated with a microwave permeable material, then performing microwave heating.
CONSTITUTION: A pattern 1 shown by (a), (b) in the figure is formed by using a microwave absorptive pattern material (e.g.; wax). Next, this pattern 1 is coated several times with an ethyl-silicate-base slurry normally used in a lost wax method and an inorg. refractory material (e.g., alumina), whereby a mold shell is formed. Thence, the entire part of the pattern coated with this refractory shell 2 is held for a predetermined time in a chamber saturated with a material of high dielectric constant, for example, steam, after which microwaves are irradiated to the entire part by ordinary means. The pattern 1 is melt-removed by this microwave irradiation to produce the mold.
COPYRIGHT: (C)1981,JPO&Japio
JP1960780A 1980-02-19 1980-02-19 Production of mold Granted JPS56117860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1960780A JPS56117860A (en) 1980-02-19 1980-02-19 Production of mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1960780A JPS56117860A (en) 1980-02-19 1980-02-19 Production of mold

Publications (2)

Publication Number Publication Date
JPS56117860A true JPS56117860A (en) 1981-09-16
JPS6313783B2 JPS6313783B2 (en) 1988-03-28

Family

ID=12003874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1960780A Granted JPS56117860A (en) 1980-02-19 1980-02-19 Production of mold

Country Status (1)

Country Link
JP (1) JPS56117860A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655276A (en) * 1986-06-02 1987-04-07 Stainless Foundry & Engineering, Inc. Method of investment casting employing microwave susceptible material
US6330904B2 (en) * 1999-02-17 2001-12-18 Micro Electronics Group Inc. Microwave-based process for dental casting
JP2007536092A (en) * 2004-05-06 2007-12-13 プロセス・テクノロジー（ユーロップ）リミテッド Improvements in investment casting

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655276A (en) * 1986-06-02 1987-04-07 Stainless Foundry & Engineering, Inc. Method of investment casting employing microwave susceptible material
US6330904B2 (en) * 1999-02-17 2001-12-18 Micro Electronics Group Inc. Microwave-based process for dental casting
JP2007536092A (en) * 2004-05-06 2007-12-13 プロセス・テクノロジー（ユーロップ）リミテッド Improvements in investment casting
KR101228166B1 (en) 2004-05-06 2013-01-30 프로세스 테크놀로지 (유럽) 리미티드 Improvements in investment casting

Also Published As

Publication number Publication date
JPS6313783B2 (en) 1988-03-28

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