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(19)

(11)

2 385 782

(13)

(51)

IPC

B22C1/18(2006-01-01)

(21) (22)

Application

2008141588/02, 2008-10-20

(24)

Start date

2008-10-20

(22)

Actual filing date

2008-10-20

(45)

Published

2010-04-10

(72)

Inventor

Znamenskij Leonid Gennad'EvichIvochkina Ol'Ga ViktorovnaVarlamov Aleksej Sergeevich

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Universitet"

MIX FOR MANUFACTURING OF SHAPES AND RODS IN PRECISION CASTING AND METHOD OF ITS MANUFACTURING Russian patent published in 2010 - IPC B22C1/18

Abstract RU 2385782 C1

FIELD: technological processes.

SUBSTANCE: invention relates to the field of casting production. Mix contains the following components, wt %: alumina-boron-phosphate concentrate 15-20; fine-dispersed quartz sand 54-60; haydite 10-15; powdery hardener - periclase 1-2; water - the rest. Preliminarily aqueous solution of alumina-boron-phosphate concentrate is prepared with a density of 1250 - 1350 kg/m³. Fine-dispersed quartz sand and haydite are introduced in it. Treatment with nanosecond electromagnet pulses is carried out with a specific capacity of 600-1000 MW/m³ with further mixing of specified ingredients and introduction of powdery hardener of binder.

EFFECT: improved strength, gas permeability and crack resistance of shapes in process of tempering.

2 cl, 3 tbl, 2 ex

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RU 2 385 782 C1

Authors

Znamenskij Leonid Gennad'Evich

Ivochkina Ol'Ga Viktorovna

Varlamov Aleksej Sergeevich

Dates

2010-04-10—Published

2008-10-20—Filed