JPS55114440A - Mold molding method - Google Patents

Mold molding method

Info

Publication number
JPS55114440A
JPS55114440A JP13965879A JP13965879A JPS55114440A JP S55114440 A JPS55114440 A JP S55114440A JP 13965879 A JP13965879 A JP 13965879A JP 13965879 A JP13965879 A JP 13965879A JP S55114440 A JPS55114440 A JP S55114440A
Authority
JP
Japan
Prior art keywords
mold
facing sand
sand
pattern
facing
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
JP13965879A
Other languages
Japanese (ja)
Other versions
JPS5614380B2 (en
Inventor
Taro Murahashi
Yukio Ogino
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.)
KOKOKU CHIYUUKOUSHIYO KK
KOUKOKU CHIYUUKOUSHIYO KK
Original Assignee
KOKOKU CHIYUUKOUSHIYO KK
KOUKOKU CHIYUUKOUSHIYO KK
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 KOKOKU CHIYUUKOUSHIYO KK, KOUKOKU CHIYUUKOUSHIYO KK filed Critical KOKOKU CHIYUUKOUSHIYO KK
Priority to JP13965879A priority Critical patent/JPS55114440A/en
Publication of JPS55114440A publication Critical patent/JPS55114440A/en
Publication of JPS5614380B2 publication Critical patent/JPS5614380B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To increase heat resistance and gas permeability by forming a facing sand layer on the mold pattern through the use of thin-plate-form facing sand having plasticity, packing backing sand and rapping the mold then coating water glass solution and the specific coat agent on the facing sand layer, and firing the mold.
CONSTITUTION: The thin-plate-form facing sand 4 having plasticity formed through kneading of organic binder such as latex is torn to suitable sizes and is affixed onto the surface of the mold pattern 2 placed on a molding board 1 and is connected by a suitable method. Thence, backing sand 5 is put between the pattern 2 and flask 3 and is then rammed and molded by a rammer 6 and stamp 7. Thence, the mold is rapped and a water glass solution is sprayed on the facing sand layer. Further, alcohol zirconium coat is coated thereon and is ignited to fire. This mold molding method results in decreased use amount of the facing sand, decreased molding cost and reduced gas evolution amount at the pouring.
COPYRIGHT: (C)1980,JPO&Japio
JP13965879A 1979-10-29 1979-10-29 Mold molding method Granted JPS55114440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13965879A JPS55114440A (en) 1979-10-29 1979-10-29 Mold molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13965879A JPS55114440A (en) 1979-10-29 1979-10-29 Mold molding method

Publications (2)

Publication Number Publication Date
JPS55114440A true JPS55114440A (en) 1980-09-03
JPS5614380B2 JPS5614380B2 (en) 1981-04-03

Family

ID=15250386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13965879A Granted JPS55114440A (en) 1979-10-29 1979-10-29 Mold molding method

Country Status (1)

Country Link
JP (1) JPS55114440A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60193483A (en) * 1984-03-16 1985-10-01 株式会社ソフイア Ball projection device of pinball machine

Also Published As

Publication number Publication date
JPS5614380B2 (en) 1981-04-03

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