FIELD: metallurgy.
SUBSTANCE: invention relates to foundry and can be used at manufacturing of moulding mixtures for manufacturing of foundry goods in dispensable molds. Moulding material contains following components in wt %: ground coal - basis; resin petroleum polymer copolymer - 5.0-20.0; powdered artificial graphite - 1.0-15.0. In the capacity of artificial graphite it is used powdered artificial graphite, corresponding classified by fineness, with particles size up to 0.09 mm - not less than 60%, aspiration product of mechanical treatment of graphitic products.
EFFECT: reduction of gas creation and increasing of blending effectiveness of moulding mixtures, ability of receiving of high-quality iron castings excluding burning-in and rattails, with minimal surface roughness.
2 cl, 1 tbl
Title | Year | Author | Number |
---|---|---|---|
FORMING MATERIAL | 2009 |
|
RU2393938C1 |
MOLDING MATERIAL | 1997 |
|
RU2139769C1 |
MOLDING MATERIAL | 2004 |
|
RU2262410C1 |
MOLDING MATERIAL | 2003 |
|
RU2252104C2 |
MOLDING COMPOSITION | 2001 |
|
RU2188094C1 |
MIXTURE FOR PRODUCING MOULDS | 0 |
|
SU564084A1 |
MIXTURE FOR PRODUCING CASTING MOULDS | 0 |
|
SU956133A1 |
MIXTURE FOR PRODUCING CASTING FORM | 0 |
|
SU833349A1 |
ANTIBURNING MATERIAL FOR MOLDING SANDS | 1989 |
|
RU2033881C1 |
COMPOSITION OF SUSPENSION FOR PREPARING THE MOULDING SANDS | 0 |
|
SU1329881A1 |
Authors
Dates
2009-11-10—Published
2008-04-21—Filed