Machine for sand core
Sand core for
1) Material all according to US-G3000,HT250 along with US-ASTM are
material standard for our Rotors.Cast iron is the best material for
superior wear characteristics at high temperatures compared to
other types of steel,It will not warp.
2)Rotor surface tensile strength ≥ 245N/mm2, hardness BH ≥ 187-241;
3) Chemical composition as following:C：3.0-3.3％ Si：1.8-2.2％
Mn：0.6-0.9,S≤0.12％ P≤0.15％ Cu：0.2-0.4％ Cr：0.15-0.25%
1) Dimensional tolerance of casting according to GB6416-86
2) Casting surface roughness meet GB606.1-85 standard requirement
3) Non-processing casting surface must have no gas-hole, sand hole
and other casting flaws
1) Should not have any casting flaws, Scratch or collision damages
on the surface.
2)All burrs, edges and corners shall be clean, and shall not leave
traces of black and rough machining casting
3)Rotor surface flatness is less than 0.04mm; while the parallelism
is less than 0.06mm, runout within 0.1mm,this is our regular runout
for every order from our customer.Quality Assurance!. Quick
Delivery,. Other machining parts,casting parts are available.