FIELD: metallurgy.
SUBSTANCE: method includes: furnace charge melting, melt hydrogen refining, out-of-furnace melt modification by ligature containing phosphorus compounds, piston blank preparation and its homogenization. In this case, out-of-furnace melt modification is carried out with providing for crushing of primary silicon crystals by applying an alloyed rod from quickly cristallized one at a cooling rate of at least 1×102 K/s, aluminum-based alloy containing dispersed phases of aluminum compound with the phosphorus (AIP) having a particle size 50 nm to 10 microns, and the melt is refined until the hydrogen content level is not more than 0.35 cm3/100 g. The blank is produced by semicontinuous casting.
EFFECT: invention allows to produce hypereutectic silumin piston blanks by semicontinuous casting method with physical and mechanical characteristics similar to the moulded blank from pellets.
2 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR MANUFACTURING A PISTON BLANK FROM HYPEREUTECTIC SILUMIN | 2018 |
|
RU2692150C1 |
| METHOD FOR MODIFYING CAST HYPEREUTECTIC SILIMINES | 0 |
|
SU1089159A1 |
| PROCESS OF ULTRASONIC TREATMENT OF MELT OF HYPEREUTECTIC SILUMINS | 1999 |
|
RU2163647C1 |
| METHOD FOR THE PRODUCTION OF BLANKS FOR INTERNAL COMBUSTION ENGINE PISTONS FROM HIGH-STRENGTH ALUMINUM ALLOYS WITH A NIRESIST INSERT FOR SUBSEQUENT ISOTHERMAL FORGING | 2022 |
|
RU2779724C1 |
| METHOD TO PRODUCE LIGATURE MATERIAL FOR COMPLEX MODIFICATION OF LIGHT ALLOYS INGOT STRUCTURE | 2011 |
|
RU2455380C1 |
| MODIFICATION METHOD OF ALUMINIUM AND ALUMINIUM-SILICONE ALLOYS (SILUMINS) BY CARBON | 2013 |
|
RU2538850C2 |
| METHOD FOR PRODUCTION OF INGOTS FROM ALUMINUM-MATRIX COMPOSITE ALLOY | 2018 |
|
RU2697683C1 |
| METHOD OF PRODUCTION OF HYPEREUTECTIC SILUMINS | 2006 |
|
RU2337166C1 |
| METHOD OF LOW-TEMPERATURE PRODUCTION OF FINE-CRYSTALLINE HIGH-SILICON ALUMINIUM-SILICON ALLOY | 2007 |
|
RU2365651C2 |
| METHOD OF TREATMENT OF POST-EUTECTIC SILUMINS | 0 |
|
SU687853A1 |
