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- EZTM Joint
Stock Company
Mills
for Seamless Tube
Mills
for Welded Tube
Cold
Rolling Mills
Cold
Rolling Mills
- COLD ROLLED TUBE MILLS
-
- The JSC EZTM is a
designer and supplier
of the cold rolling tube mills of PILGER TYPES. The company delivers
specialized cold rolling mills for production of tube of diameter
from 6- 450mm of different grades of steels as well as of alloys
based on titanium, copper or aluminum.
- To roll tubes of difficult to deformed material it is recommended
to use the specialized cold rolling tube mills with side or butt
charging of an interrupt operation i.e the mills operating with
stoppage for charging the next shell into rolling line.
- The whole type sizes of mills are completed from machines of the
same type.
- The working stand has been made with stationery forced housing ad
a movable cassette with support and work rolls with ring dies.
- The stand displacement drive is a planetary crank with a
centrifugal balancing of inertia loads. Turn and feed mechanism is
with a planetary crank converter of continuous rotation to interrupt
one with stepwise changing a feed value. A bar vice, an outlet and
intermediate vices have been made with individual converter of a
turn. Cutting devices providing tubes cutting in the mill line at
rolling process completes the mills.
- For rolling tubes of plastic light deformed material as well as
for rolling the thin walled and especially thin walled tube of high
strength material it is recommended to use the cold rolling tube
mills of the sigle strand and two strand design of continuous action
i.e. operating without stoppages for charging the next shell into a
rolling line.
-
- At the customer request the mill can be supplied in one of three
alternatives:
- a.
with a roll
- b.
roller
- c.
roll and roller working stand
-
- The mills are manufactured for the
shells up to 5,8,10,12,15 M with
a table for finished tubes in cuts or with coiling in to coils.
-
- Using the specialized cold rolling
mills of the EZTM , design of the mill provides:
- 1.
High accuracy of geometrical dimension of rolled tubes at
minimum operating expenditure due to technology based on using the
rolling methods with double turn and rolling without deformation at
reverse strokes in connection with increased rigid of a working
stand and stable feed independent from speed and forces of rolling.
- 2.
Minimum energy consumption at the cold rolled tube production
because of using balancing
inertia loads in a drive for stand displacement in connection with
high maneuverable circuit for a drive control.
- 3.
Minimum expenditure in
shop building and equipment installation due to optimum arrangement
of equipment and designing machine
with minimum depth of the foundation .
- 4.
Increased average monthly and yearly output as a result of
time reduction to finish auxiliary work and repair and maintenance.
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