DK9479A - BOLDING FOR COLD HANDLING FORMAND MIXTURES AND PROCEDURES FOR PREPARING IT AND FORMING MIXTURE CONTAINING BINDING AGENTS - Google Patents

BOLDING FOR COLD HANDLING FORMAND MIXTURES AND PROCEDURES FOR PREPARING IT AND FORMING MIXTURE CONTAINING BINDING AGENTS

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Publication number
DK9479A
DK9479A DK9479A DK9479A DK9479A DK 9479 A DK9479 A DK 9479A DK 9479 A DK9479 A DK 9479A DK 9479 A DK9479 A DK 9479A DK 9479 A DK9479 A DK 9479A
Authority
DK
Denmark
Prior art keywords
weight
water
moulding sand
schist
resin
Prior art date
Application number
DK9479A
Other languages
Danish (da)
Other versions
DK147227C (en
DK147227B (en
Inventor
L D Snulova
P A Borsuk
A I Tsyruleva
E A Minkin
Z I Denisova
A M Lyass
Original Assignee
N Proizv
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 N Proizv filed Critical N Proizv
Priority to DK9479A priority Critical patent/DK147227C/en
Publication of DK9479A publication Critical patent/DK9479A/en
Publication of DK147227B publication Critical patent/DK147227B/en
Application granted granted Critical
Publication of DK147227C publication Critical patent/DK147227C/en

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  • Mold Materials And Core Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

As modifier for regulating the binding capacity, a urea formaldehyde resin-based binder for cold-setting moulding sand mixtures contains a homogeneous "oil in water" emulsion of a heavy fraction with a specific gravity of at least 1.01 g/cm<3> composed of a schist resin, an organic solvent for the carbonaceous constituents of the said fraction, an emulsifier and water. A product obtained by processing schist in gas generator ovens at approximately 500 degrees C, for example, may be used as the heavy fraction of schist resin. The binder is manufactured by mixing constituents of the modifier at reduced pressure to form a homogeneous "oil in water" emulsion and subsequent addition of urea formaldehyde resin. Per 100 parts by weight of filler (e.g. moulding sand), the moulding sand mixture may contain 2-5 parts by weight of binder, 0.3-1.0 part by weight of acid hardening compound and 0.5-1.0 part by weight of water. The moulding sand mixture has high thermal resistance and mechanical strength.
DK9479A 1979-01-09 1979-01-09 BINDING FOR COOL-HARDENING FORMAND MIXTURES AND PROCEDURES FOR PREPARING THEREOF DK147227C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK9479A DK147227C (en) 1979-01-09 1979-01-09 BINDING FOR COOL-HARDENING FORMAND MIXTURES AND PROCEDURES FOR PREPARING THEREOF

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK9479 1979-01-09
DK9479A DK147227C (en) 1979-01-09 1979-01-09 BINDING FOR COOL-HARDENING FORMAND MIXTURES AND PROCEDURES FOR PREPARING THEREOF

Publications (3)

Publication Number Publication Date
DK9479A true DK9479A (en) 1980-07-10
DK147227B DK147227B (en) 1984-05-21
DK147227C DK147227C (en) 1984-11-05

Family

ID=8089661

Family Applications (1)

Application Number Title Priority Date Filing Date
DK9479A DK147227C (en) 1979-01-09 1979-01-09 BINDING FOR COOL-HARDENING FORMAND MIXTURES AND PROCEDURES FOR PREPARING THEREOF

Country Status (1)

Country Link
DK (1) DK147227C (en)

Also Published As

Publication number Publication date
DK147227C (en) 1984-11-05
DK147227B (en) 1984-05-21

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