JPS5653843A - Mold coating material countermeasure against casting defect - Google Patents

Mold coating material countermeasure against casting defect

Info

Publication number
JPS5653843A
JPS5653843A JP12927179A JP12927179A JPS5653843A JP S5653843 A JPS5653843 A JP S5653843A JP 12927179 A JP12927179 A JP 12927179A JP 12927179 A JP12927179 A JP 12927179A JP S5653843 A JPS5653843 A JP S5653843A
Authority
JP
Japan
Prior art keywords
mold
coating material
shrinkage
casting
countermeasure against
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
JP12927179A
Other languages
Japanese (ja)
Other versions
JPS6227902B2 (en
Inventor
Kazuo Nomura
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 JP12927179A priority Critical patent/JPS5653843A/en
Publication of JPS5653843A publication Critical patent/JPS5653843A/en
Publication of JPS6227902B2 publication Critical patent/JPS6227902B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a mold coating material for countermeasure against casting defects which consists in adding good conductive metal powder of Al, Cu, etc. to an aqueous hydrochloric acid soln. of amorphous alumina and which prevents shrinkage detects such as shirnkage cavity in casting and improves production efficiency.
CONSTITUTION: A titled mold coating material is a colloidal liquid prepd. by adding and mixing a suitable amount of good conductive metal powder of Al, Cu, Fe, etc. to an aqueous hydrochloric acid soln. of amorphous alumina. If this coating material 2 is applied on the side wall of a mold (b) which is at a position between the mold (a) and mold (b) where shrinkage cavity of molten metal 1 is liable to occur at the time of casting by using a metal such as Al alloy, the molten metal in this position is quickly cooled, thus the rate of shrinkage defects sich as shrinkage cavity decreases extremely, and this results in improved production efficiency and decreased costs.
COPYRIGHT: (C)1981,JPO&Japio
JP12927179A 1979-10-06 1979-10-06 Mold coating material countermeasure against casting defect Granted JPS5653843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12927179A JPS5653843A (en) 1979-10-06 1979-10-06 Mold coating material countermeasure against casting defect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12927179A JPS5653843A (en) 1979-10-06 1979-10-06 Mold coating material countermeasure against casting defect

Publications (2)

Publication Number Publication Date
JPS5653843A true JPS5653843A (en) 1981-05-13
JPS6227902B2 JPS6227902B2 (en) 1987-06-17

Family

ID=15005451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12927179A Granted JPS5653843A (en) 1979-10-06 1979-10-06 Mold coating material countermeasure against casting defect

Country Status (1)

Country Link
JP (1) JPS5653843A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5476134A (en) * 1993-12-21 1995-12-19 Aluminum Company Of America CRN coated die-casting tools for casting low aluminum iron alloys and method of making same
JP2011521786A (en) * 2008-05-28 2011-07-28 アシュランド サドヘミ ケルンフェストゲーエムベーハー Molding agent composition for casting mold and core that avoids smudge surface

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4205993A1 (en) 2021-12-30 2023-07-05 Société BIC Slim writing implement with laterally offset return spring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5476134A (en) * 1993-12-21 1995-12-19 Aluminum Company Of America CRN coated die-casting tools for casting low aluminum iron alloys and method of making same
JP2011521786A (en) * 2008-05-28 2011-07-28 アシュランド サドヘミ ケルンフェストゲーエムベーハー Molding agent composition for casting mold and core that avoids smudge surface

Also Published As

Publication number Publication date
JPS6227902B2 (en) 1987-06-17

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