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.)
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.)
NINOU ALBERT
Original Assignee
NINOU ALBERT
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 NINOU ALBERTfiledCriticalNINOU ALBERT
Priority to FR6932083ApriorityCriticalpatent/FR2058664A5/en
Application grantedgrantedCritical
Publication of FR2058664A5publicationCriticalpatent/FR2058664A5/en
B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
B22C7/02—Lost patterns
B22C7/023—Patterns made from expanded plastic materials
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Mold Materials And Core Materials
(AREA)
Abstract
Foundry models are made of thermoplastic material which is gasified during casting on contact with the molten metal. The model is held in foundry sand which may be extra-siliceous. Hot gases are used to burn out organic materials in the sand.
FR6932083A1969-09-191969-09-19Foundry models of thermoplastic material
ExpiredFR2058664A5
(en)
A method for molding in a permanent mold a metal object of uniform surface relatively smooth. (Machine-translation by Google Translate, not legally binding)