BG51283A1 - Method for making casting moulds - Google Patents

Method for making casting moulds

Info

Publication number
BG51283A1
BG51283A1 BG9419891A BG9419891A BG51283A1 BG 51283 A1 BG51283 A1 BG 51283A1 BG 9419891 A BG9419891 A BG 9419891A BG 9419891 A BG9419891 A BG 9419891A BG 51283 A1 BG51283 A1 BG 51283A1
Authority
BG
Bulgaria
Prior art keywords
grain
sealed
coarse
filler
casting moulds
Prior art date
Application number
BG9419891A
Inventor
Denao A Georgiev
Original Assignee
Univ Tekhnicheski
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 Univ Tekhnicheski filed Critical Univ Tekhnicheski
Priority to BG9419891A priority Critical patent/BG51283A1/en
Publication of BG51283A1 publication Critical patent/BG51283A1/en

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Abstract

The method is used to cast metallic and plastic models, cores, etc. It increases the casting efficiency and the quality of the manufactured moulding equipment. According to the method, a sealed mould, made of a coarse-grain fireproof material containing a duct cavity, is placed around a foil-wrapped pattern. Between the walls of the duct cavity and the pattern, a filler of fine-grain fireproof material is formed. This medium is sealed through vibration and later sealed through linking it with the coarse-grain filler.
BG9419891A 1991-04-05 1991-04-05 Method for making casting moulds BG51283A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BG9419891A BG51283A1 (en) 1991-04-05 1991-04-05 Method for making casting moulds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG9419891A BG51283A1 (en) 1991-04-05 1991-04-05 Method for making casting moulds

Publications (1)

Publication Number Publication Date
BG51283A1 true BG51283A1 (en) 1993-04-15

Family

ID=3923650

Family Applications (1)

Application Number Title Priority Date Filing Date
BG9419891A BG51283A1 (en) 1991-04-05 1991-04-05 Method for making casting moulds

Country Status (1)

Country Link
BG (1) BG51283A1 (en)

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