Twin Parallel

Twin Parallel

In the section extrusion screws and barrels we also have the parallel twin-screw.

Technological content the Parallel twin-screw characterizes Euroviti. Since its foundation, in 1992, has the capacity to produce the cylinder twin-barrel parallel in carbon steels enriched gas nitriding NT9 (120H)
For years we can produce twin-barrel bimetallic.
 

Manufacture of the screws
DenominationCSiMnPSAlCrMoNiVW
EUV 310,340,700,40 max0,025 max0,030 max1,302,700,25-0,20-
Coating on screws
AlloyDenominationHardness
Iron BaseEUV 558 - 60 HRC
Nickel BaseEUV 5652 - 56 HRC
Nickel BaseEUV 6058 - 60 HRC
Nickel Base ( Tungsten carbide )EUV 85048 - 59 HRC
MolibdenoEUV 70059 - 60 HRC
Manufacture of the bimetalic barrels
DenominationBaseAlloyHardnessUsura / Resistenza
EUV400Fe/CrNi.Mo.Cu.C.B.64 - 69 HRCWear and corrosion resistance
EUV1000WNi legaCr.Si.B.WC.58 - 66 HRC Excellent wear and corrosion resistent
EUV 34 ( Nitriding steel )Fe900 ÷ 1000 HV
EUV 41 ( Nitriding steel )Fe950 ÷ 1100 HV
Rivestimenti superficiali
Method of coatingMaterial
PVDTiN - TiCN - CrN
HVOFWC-Co-Cr ( Ceramic )
HVOF WC-Co ( Tungsten carbide )
Galvanic chrome platingCr
randomness