Cold rolling tube mill CRTM 32-6
The cold rolling tube mills CRTM 32-6, pilger type, one stranded, left- and right-hand versions
are intended for manufacturing cold worked tubes made of various grades of carbon, alloyedand stainless steels with ultimate strength up to 1000 MPa in the initial condition from a shell of
up to 6 m long.
The mills are designed for front loading of shell w/o stoppage for recharging. Die is of ring type.
The mills have a movable power stand with working rolls, a drive mechanism with the system of
rotating counterweights balancing torques and inertia forces, a loading table, a feeding area and a
finished tubes receiving table.
The system of individual servodrives is used for feed and turn mechanisms, that allow adjusting
their values in the wide range.
Stand design allows changing of the interaxial distance between the working rolls and selecting
optimal rolling diameter. This allow minimization of the axial rolling forces which in its turn
influence positively tube quality, stable rolling process, reduces wearout of drive pinions and
racks and also allows multiple using of worn-out dies owing to their regrinding round the outer
diameter and groove regrinding.
Технические характеристики ХПТ 32-6
№ |
Position |
Unit |
Parameter |
---|---|---|---|
1 |
Outer diameter (OD) |
mm |
11 ... 32 |
2 |
Wall thickness (WT), mm |
mm |
0,9 ... 4,5 |
3 |
Transversal wall thickness variation, not more, |
% |
4,5 |
4 |
Length, m |
m |
1,5 ... 6,0 |
5 |
Outer diameter (OD) |
mm |
8 ... 22 |
6 |
Working stand stroke number per minute |
m |
0,3 ... 2,5 |
7 |
Rolling force |
kN, not more |
300 |
8 |
Stand stroke length, mm |
mm |
440 |
9 |
Working stand stroke |
number per minute |
30 ... 250 |