Patenton — panteon of patents

(19)

RU

(11)

2 155 114

(13)

C1

(51)

IPC

(21) (22)

Application

99114486/02, 1999-07-07

(24)

Start date

1999-07-07

(22)

Actual filing date

1999-07-07

(45)

Published

2000-08-27

(72)

Inventor

Znamenskij L.G.Kulakov B.A.Zhabreev V.S.Pavlovskaja O.O.Ivochkina O.V.Erdakov I.N.

(73)

Holder

Juzhno-Ural'Skij Gosudarstvennyj Universitet

MIXTURE FOR PREPARATION OF GYPSUM MOLDS AND CORES IN PRODUCTION OF CASTINGS FROM NONFERROUS AND PRECIOUS ALLOYS AND METHOD OF MIXTURE PREPARATION Russian patent published in 2000 - IPC

Abstract RU 2155114 C1

FIELD: foundry. SUBSTANCE: mixture contains, wt.%: gypsum, 10-14; dinas powder, 15-26; dusty sublimate of fireclay production, 3-7; dusty quarts, 25-40; aluminochromophosphate binder, 0.05-0.12; surfactant, 0.007-0.015; water, the balance. Dusty quartz compensates expansion of dinas powder in heating. Preparation of mixture includes preliminarily preparation of gypsum-air mixture and its treatment with electrical field with intensity of 500-1000 V/m. EFFECT: increased mechanical and physical properties of molds and cores, improved quality of art castings, especially, massive and large-size ones. 3 cl, 3 tbl, 2 ex

Similar patents RU2155114C1

Title Year Author Number
SAND FOR MAKING MOLDS AND CORES WITH GYPSUM BINDER AT PRODUCING CASTINGS OF NON- FERROUS AND PRECIOUS ALLOYS 2000
  • Ivochkina O.V.
  • Znamenskij L.G.
  • Dubrovin V.K.
  • Kulakov B.A.
 RU2163854C1
MIXTURE FOR MANUFACTURING MOLDS AND RODS ON GYPSUM BINDER IN PRODUCTION OF NONFERROUS AND PRECIOUS ALLOY CASTINGS 2000
  • Erdakov I.N.
  • Znamenskij L.G.
  • Kulakov B.A.
  • Dubrovin V.K.
  • Zorin S.A.
  • Bober V.I.
 RU2175902C1
METHOD OF PREPARING MIXTURE FOR MAKING MOLDS AND CORES WITH GYPSUM BINDER AT MAKING CASTINGS OF NON- FERROUS AND PRECIOUS ALLOYS 2002
  • Znamenskij L.G.
 RU2212975C1
METHOD OF PREPARING SAND FOR MANUFACTURE OF GYPSUM MOLDS AND CORES IN PRODUCTION OF CASTINGS FROM NONFERROUS ALLOYS 1999
  • Znamenskij L.G.
  • Kulakov B.A.
  • Romanov V.A.
  • Ivochkina O.V.
 RU2162762C1
MIX FOR MANUFACTURING CERAMIC MOLDS AND RODS IN PRODUCTION OF NON- FERROUS AND PRECIOUS ALLOYS AND METHOD OF PREPARATION THEREOF 1998
  • Znamenskij L.G.
  • Kulakov B.A.
  • Krymskij V.V.
  • Smolko V.A.
  • Dubrovin V.K.
  • Erdakov I.N.
 RU2129932C1
METHOD FOR PREPARING SAND FOR MAKING MOLDS AND CORES WITH GYPSUM BINDER AT PRODUCING CASTINGS OF NON-FERROUS AND PRECIOUS METALS 2000
  • Znamenskij L.G.
  • Kulakov B.A.
  • Ivochkina O.V.
 RU2163524C1
METHOD FOR MAKING CORES AND MOLDS WITH USE OF GYPSUM BINDER AT MAKING CASTINGS OF NON-FERROUS AND FERROUS ALLOYS 2000
  • Znamenskij L.G.
  • Kulakov B.A.
  • Ivochkina O.V.
  • Erdakov I.N.
 RU2171728C1
METHOD FOR MAKING CORES AND MOLDS WITH USE OF GYPSUM BINDER AT MAKING CASTINGS OF FERROUS AND NON-FERROUS ALLOYS 2002
  • Znamenskij L.G.
 RU2214314C1
METHOD FOR MANUFACTURING MOLDS AND CORES ON BASE OF GYPSUM BINDER AT MAKING CASTINGS OF NON- FERROUS AND PRECIOUS ALLOYS 2002
  • Znamenskij L.G.
 RU2209127C1
POURING SELF-SETTING MOLDING SAND FOR MAKING MOLDS AND CORES AT PRODUCING CASTINGS WITH USE OF INVESTMENT PATTERNS 2004
  • Dubrovin V.K.
  • Kulakov B.A.
  • Karpinskij A.V.
  • Znamenskij L.G.
  • Erdakov I.N.
  • Ivochkina O.V.
 RU2252103C1

RU 2 155 114 C1

Authors

Znamenskij L.G.

Kulakov B.A.

Zhabreev V.S.

Pavlovskaja O.O.

Ivochkina O.V.

Erdakov I.N.

Dates

2000-08-27—Published

1999-07-07—Filed

read Similar patents