FIELD: process engineering.
SUBSTANCE: invention relates to foundry. Proposed method comprises casting hot metal into mould, cooling is down and preliminary machining of casting. To provide for rarefaction, casting is subjected to vacuum treatment in autoclave. Then casting is impregnated with impregnating compound at 0.1-0.8 MPa, compound composition being as follows, in wt %: oligoester acrylate - 60.0-75.0, polyester unsaturated resin - 20.0-35.0, peroxide polymerisation initiator - 1.0-3.0, siccative - 0.1-2.5, inhibitor - 0.01-0.5.
EFFECT: better tightness of casting.
1 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| ELECTROINSULATING IMPREGNATING COMPOUND AND METHOD OF MAKING ELECTROINSULATING MATERIAL | 1995 |
|
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| INSULATING HEAT-RESISTANT PENETRATION COMPOUND AND A METHOD FOR PREPARATION THEREOF | 2004 |
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| METHOD FOR MAKING POLYMER CONCRETE PRODUCTS | 0 |
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| ELECTRIC-INSULATION IMPREGNATING COMPOUND | 1976 |
|
SU630895A1 |
| METHOD OF PREPARING POLYESTERACRYLATES CONTAINING SYMMETRIC TRIAZINE CYCLE | 0 |
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| ELECTROINSULATION IMPREGNATING COMPOUND | 1992 |
|
RU2074218C1 |
| ELECTRIC INSULATING COMPOUND | 0 |
|
SU1165696A1 |
| POLYMERIC COMPOSITION | 1976 |
|
SU612500A1 |
| METHOD TO MANUFACTURE INSULATION OF WINDINGS IN ELECTRIC MACHINES | 2012 |
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RU2504069C1 |
| ELECTROINSULATION MATERIAL | 2004 |
|
RU2291885C2 |
