*Material

1. Main shaft:180mm×25mmseamless steel tube, after machining size:178×23mm. Under the pressure of6tons, the deflection is 0.00000000255m, which can be ignored.

2. Spoke:stainless steelwelding type,10 pcs for inside and outside in all. The spoke head is casted bystainless steel, which thickness is30mm.

3..Stainless steel belt:stainless steel winding sheet 1.5×12mm. The screw pitch is 10mm.

4..Stainless steelbar:stainless steel bar 160mm×60pcs. The stainless steel material is SS304.

*Technical requirement:

1. Shaft: The seamless tubeof cylinder mould and spindle nose are after finish machining, then hotassembled. The bearing stand roughness is below 1.6. The spoke is installed onthe main shaft by M20mm×70mm 304 stainless steel bolts. There are δ2mm seamlesstube stainless steel spacer sleeves between the spokes.

2. Wire face: The cylindermould is after lathing and grinding, then polished treatment, which can makesure the accuracy is below 1000mm:0.03mm. The cone degree of the wire end isbelow 0.10mm. The wire flatness of total length is below 0.10mm.

3. Dynamic balance: We dodynamic balance treatment for every cylinder mould, which can make sure thatthe cylinder mould can operate normally under the speed of 800m.