JPS5639143A - Repairing method of wood pattern for casting - Google Patents

Repairing method of wood pattern for casting

Info

Publication number
JPS5639143A
JPS5639143A JP11284979A JP11284979A JPS5639143A JP S5639143 A JPS5639143 A JP S5639143A JP 11284979 A JP11284979 A JP 11284979A JP 11284979 A JP11284979 A JP 11284979A JP S5639143 A JPS5639143 A JP S5639143A
Authority
JP
Japan
Prior art keywords
pattern
mold
wood
corrected
reinforcing coating
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
JP11284979A
Other languages
Japanese (ja)
Other versions
JPS608898B2 (en
Inventor
Hitoshi Otsuka
Tadashi Takimoto
Masaru Morizaki
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP11284979A priority Critical patent/JPS608898B2/en
Publication of JPS5639143A publication Critical patent/JPS5639143A/en
Publication of JPS608898B2 publication Critical patent/JPS608898B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE: To easily reproduce a wood pattern having reached its service limit and save the cost of manufacturing patterns by making a mold with said pattern, removing the inner side surface of the pattern and injecting a reinforcing coating agent in the clearance of the mold thereby repairing the same.
CONSTITUTION: Molding sand is packed in a pattern 1 made of wood which has worn and become dimensionally inaccurate upon longterm use, whereby a mold 2 is made. Thence, this mold 2 is taken out from the wood pattern 2, and the thickness 4 nearly constant over the entire surface of the inside surface 3 is removed by using woodworking tools or the like, whereby a corrected pattern 1' is made. On the other hand, a release agent is coated on the entire outside surface 5 of the mold 2 and the pattern is again fitted into the cavity in the corrected pattern 1', then the space 4' of nearly uniform thickness is formed between the removed inside surface 3' of the corrected pattern 1' and the outside surface 5 of the mold 2. Next, a reinforcing coating agent 6 prepared by adding a hardener to a molten synthetic resin is injected into the space 4' and the pattern 2 is taken out after it has solidified. Hence, the corrected pattern 1' assumes the state that the reinforcing coating film has stuck over the entire surface of its inside surface, thus the repaired pattern of an accurate size is obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP11284979A 1979-09-05 1979-09-05 How to repair wooden casting models Expired JPS608898B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11284979A JPS608898B2 (en) 1979-09-05 1979-09-05 How to repair wooden casting models

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11284979A JPS608898B2 (en) 1979-09-05 1979-09-05 How to repair wooden casting models

Publications (2)

Publication Number Publication Date
JPS5639143A true JPS5639143A (en) 1981-04-14
JPS608898B2 JPS608898B2 (en) 1985-03-06

Family

ID=14597060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11284979A Expired JPS608898B2 (en) 1979-09-05 1979-09-05 How to repair wooden casting models

Country Status (1)

Country Link
JP (1) JPS608898B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104117634A (en) * 2014-08-09 2014-10-29 山东理工大学 Repairing method of casting die

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104117634A (en) * 2014-08-09 2014-10-29 山东理工大学 Repairing method of casting die

Also Published As

Publication number Publication date
JPS608898B2 (en) 1985-03-06

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