For Indian Corrugation Machine Parts of Hard Chrome Corrugator
Rolls
Introduction
--The largest professional corrugated roller manufacturer in
northern of China
--50CrMo refined forging steel supplied by the best manufacturer in
China.
--A, C, B, E, F, G, N flute corrugated rolls
--High Speed can reach to 200m/min
--Hard Chrome 0.06-0.08mm
--Medium frequency quenching heating treatment machine makes --the
hardness of base steel more than HRC58 and harden layer 8-12mm.
--High precision and high performance CNC grinding machine equipped
with Germany Siemens control system.
--We design the flute profile according to customer’s medium paper
GSM, speed, FCT requirement. The flute profile is more reasonable,
suitable to customer’s machine
--Our corrugated rollers has been exported to many countries such
as Korea, Russia, Egypt, India, Thailand, Myanmar, etc.
--Supply corrugated rollers for all kinds of corrugator line such
as Fosber, BHS, BW Paper System, K&H, HSIEH HSU,Fuli, Wanlian,
TCY, Champion, West River, Mingwei and so on.
2. Precision Welding Can Be Inseparable
Both ends of the roller body should be heated to release the size
of the inner bored hole. After the spindle heads are put in, the
roller body and the spindle heads should be held tightly after
natural cooling. When everything is ready, a driving fit interface
has been formed between the roller body and the spindle heads by
means of preheating, welding or bolting. Special care should be
taken when welding, because finished corrugated roller body’s
temperature will rise constantly when the roller is running, and
the roller body also bears pressure of the steam from the inside of
the roller body, which will form the so-called “pressure vessel”.
In view of this, the roller body and the spindle heads joint must
pass the pressure test. When the welding process finished, the work
piece shall be put into the furnace for high temperature tempering
to reduce stress.
3.High Hardness from Vertical Quenching Process
Intermediate frequency quenching can guarantee both the hardness
and harden depth we need. Our harden layer depth can reach to
8-12mm. With harder base material as foundation, the lifetime of
our corrugating rolls are greatly extended. After different heat
treatment process, the corrugated roller surface becomes more
wear-resistant and durable. Some manufacturers groove their lower
rollers before the rollers’ were harden, because it is relatively
easy to work with soft materials. By this could cause problems in
the later heating process for the rollers, which will make the
hardness of the rollers change. After heating treatment we cut
slots of lower roll though this process needs more time but makes
uniform hardness.
Flute Profile
Almost every set of corrugating rolls are needed to be designed and
customized separately according to the width, diameter, flute
height, corrugated paper GSM, speed and cardboard physical index
requirement.
| Flute | Profile | Height(mm) | Pitch(mm) | Flutes/300mm | T.U.R |
| A | UV | 4.5-5.0 | 8.0-9.5 | 34±3 | 1.45-1.52 |
| C | UV | 3.5-4.0 | 6.8-7.9 | 41±3 | 1.37-1.47 |
| B | UV | 2.5-3.0 | 5.5-6.5 | 50±4 | 1.33-1.41 |
| E | UV | 1.1-2.0 | 3.0-3.5 | 93±6 | 1.24-1.36 |
| F | UV | 0.8-1.0 | 2.2-3.2 | 115±20 | 1.19-1.25 |
| G | UV | 0.6-0.8 | 1.8-2.8 | 136±20 | 1.15-1.20 |
| N | UV | 0.4-0.6 | 1.2-2.2 | 193±55 | 1.10-1.15 |
| Others | UV | Customized | Design | Design | Design |
