Primetals Technologies Japan, Ltd.
A joint venture of Siemens,
Mitsubishi Heavy Industries and Partners
Tokyo office:
Shintamachi Bldg.
34-6, Shiba 5-Chome, Minato-ku,
Tokyo 108-0014, Japan
Phone: +81-3-5765-5231
Hiroshima Works:
6-22, Kanonshin-Machi, 4-Chome, Nishi-ku,
Hiroshima 733-8553, Japan
Phone: +81-82-291-2181
primetals.com
Brochure No. : June 2015/T05-0-N086-L4-P-V1-EN
Printed in Japan
© 2015 Primetals Technologies Ltd. All rights reserved.
COLD ROLLING MILL
The information (including, e.g., figures and numbers) provided
in this document contains merely general descriptions or
characteristics of performance based on estimates and
assumptions which have not been verified.
It is no representation, does not constitute and/or evidence a
contract or an offer to enter into a contract to any extent and is
not binding upon the parties. Any obligation to provide and/or
demonstrate respective characteristics shall only exist if expressly
agreed in the terms of the contract.
These estimates and assumptions have to be analyzed on a caseto-case basis and might change as a result of further product
development.
Primetals Technologies excludes any liability whatsoever under
or in connection with any provided information, estimates
and assumptions. The provided information, estimates and
assumptions shall be without prejudice to any possible future
offer and/or contract.
Any use of information provided by Primetals Technologies to the
recipient shall be subject to applicable confidentiality obligations
and for the own convenience of and of the sole risk of the
recipient.
A MHMM Rolling Technology
Printed by
Fuji Xerox Service Link Co., Ltd.
https://www.fxsvl.co.jp/
primetals.com
COLD ROLLING MILL
CONTENTS
We are pleased to introduce our Cold Rolling Technologies developed to meet recent market requirements.
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1. TANDEM COLD MILL (TCM)
……… P3
-
P10
……… P11
-
P16
……… P17
-
P18
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Recent Market Trend
Production capacity : over 800 Kton/year
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GHYHORSLQJHOHFWUL´HGYHKLFOHVZLWKOLJKWVWHHO
body structure designs that reduce mass and
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YHKLFOH
VHQWLUHOLIHF\FOH
2. REVERSING COLD MILL (RCM)
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harder products. Facilities are required to
produce these products in higher volumes and
under stable operating conditions.
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Market
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Excellent Product Quality
3. DOUBLE COLD REDUCTION MILL (DCR)
PDLQO\IRU7LQ3ODWH
Production capacity : approx. 200 Kton/year
Solution
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EDC by WRS : (GJH'URS&RQWUROE\:RUN5ROO6KLIWLQJ
Carrousel Tension Reel
Double AS-U : 6KDSHFRQWUROV\VWHPIRU&OXVWHU0LOO
4. TEMPER/SKINPASS MILL (TPM/SPM)
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5. CLUSTER MILL
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Production capacity : approx. 100 Kton/year
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Carrousel Tension Reel
2
1. TANDEM COLD MILL (TCM)
SUPPLY REFERENCE LIST & PRODUCT CATEGORY
Silicon Steel
Carbon
Technology Applied To Cold Rolling Mill
Feature of Mill Type
Mill Type
WR
Bender
IMR
Bender
WR
Shift
IMR
Shift
User
Mill Type
UCM
UCM-MILL was added intermeided Roll Bender mechanism to HCM-MILL.
UCMW-MILL was added work roll shift mechanism to UCM-MILL.
For production of high quality strip,
roll management is a critical issue.
For this purpose, fully automatic high
speed roll changing equipment is
provided for the TCM.
Delivery Strip Handling Device
The endless rolled strip is divided by the
high speed ROTARY SHEAR and
re-wound into coils.
The CARROUSEL type TENSION REEL
FRQ´JXUDWLRQLVDSSOLHGWRVXSSRUW
continuous coil changeover during
continuous rolling in the mill section.
Coil changeover operation is achieved
through automatic control blocks for
reliability and ease of operation.
Inspection Station
HYROP-F System
HYROP-F System consists of
- Direct operated servo valve, FMV (Force Motor
Valve), specially developed for rolling mill
- Hydraulic push up cylinder with built-in precise
position detector
- Well arranged hydraulic piping for high response
- Exclusively designed Control System By the
combination of each component,
high performance and reliable roll load system
are realized.
To produce high surface quality
VWULSDKLJKHI´FLHQF\LQVSHFWLRQ
station at the TCM exit end is
essential. Vertical elevator type and
various other types of inspection
stations, such as the inline type,
ZHUHGHYHORSHGIRUHI´FLHQW
two-side inspection.
Products
Start-up
2006
Sheet
1982
27
Benxi Steel
(China)
2
Nisshin Steel
(Sakai)
Galva.
1985
28
Wuhan Steel
(China)
Silicon
&
Sheet
2006
3
Kawasaki Steel
(Mizushima)
Sheet
1986
29
Maanshan Steel
(China No.2)
Galva
&
Sheet
2007
4
NKK
(Fukuyama)
Sheet
1987
30
Union Steel
(Korea)
Galva
&
Sheet
2007
5
POSCO
(Pohang No.2)
Sheet
1987/
2003/
2007
31
Shougang Jingtang
Steel (China)
Galva
&
Sheet
2009
6
UPI
(USA)
Tin
&
Sheet
1988
32
Jiuquan Steel
(China)
Galva
&
Sheet
2009
7
I/N Tek
(USA)
Sheet
1989
33
POSCO Vietnam
(Vietnam)
Galva
&
Sheet
2009
8
POSCO
(Kwangyang No.1)
Sheet
1988/
2006
34
SeverStal
(USA)
Galva
&
Sheet
2010
9
POSCO
(Kwangyang No.2)
Sheet
1990/
2009
35
Baoshan Steel
(China BST)
Sheet
2010
10
Nippon Steel
(Yawata)
Galva
&
Sheet
1990
36
Guangzhou JFE
(China)
Galva
&
Sheet
2010
11
POSCO
(Kwangyang No.3)
Tin
&
Sheet
1991
37
Shougan Qian'an
(China)
Sheet
2010
12
DOFASCO
(Canada)
Tin
&
Sheet
1992
38
China Steel
(Taiwan No.3 PLCM)
Galva
&
Sheet
2011
13
China Steel
(Taiwan)
Sheet
1992/
2007
39
Shougang Jingtang
Steel (China No.3)
Tin
&
Sheet
2013
14
Sumitomo Metal
(Kashima No.2)
Galva
&
Sheet
1993
40
Wuhan Steel
(China)
Tin
2013
CVC
15
TON YI
(Taiwan)
Tin
&
Sheet
1995
41
Panzhihua Steel
(China)
Galva
&
Sheet
2013
16
ERDEMIR
(Turkey)
Sheet
1995
42
Hyundai HYSCO
(Korea)
Galva
&
Sheet
2013
17
NKK/TCRSS
(Thailand)
Galva
&
Sheet
1997
43
POSCO Maharashtra
(India)
Galva
&
Sheet
2013
Sheet
1997
44
Ternium
(Mexico)
Galva
&
Sheet
2013
1998
45
Shanxi Taigang
Stainless Steel
(China)
Silicon
&
Sheet
2013
1998
46
Baoshan Steel
(China Zhanjiang)
Galva
&
Sheet
2016
BaoTou Steel
(China No.2)
Galva
&
Sheet
2015
Galva
&
Sheet
2015
Tin
&
Sheet
2016
Silicon
&
Sheet
2017
18
HYROP
YROP System componen
component
Mill Type
User
Nippon Steel
(Hirohata)
PC
The UCM-MILL makes it possible to roll
products with straight rolls, allowing rapid
start ups.
See, page 5, 6.
No.
1
HCMW
UCMW
Products Start-up
Galva
&
Sheet
HCM
Roll Changing Equipment
3
Stainless
CONTINUOUS TANDEM COLD MILLS newly installed in the world after 1980
No.
Application of the UCM-MILL makes possible to roll all products with straight rolls, which will allow to
get rapid start up. The operators can derive most stable rolling and shape controllability. Thanks to the
horizontal rigidity created by shifting of intermediate roll, the user can control strip thickness deviation
without jeopardizing the shape of the strip.
The mill is equipped with a high response
Hydraulic Roll Positioning Device (HYROP-F),
Laser Doppler type speed measuring device
and X-ray type thickness gauge meters. This
equipment, combined with a high performance,
up-to-date Automatic Gauge Control (AGC)
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exit of the mill, a modern designed shape
measuring sensor and Automatic Shape Control
(ASC) system is installed to guarantee the
UHTXLUHGµDWQHVVRIWKH´QLVKHGVWULS
Tin
POSCO
(Kwangyang No.4)
19
Hyundai Pipe
(Korea)
20
SUS/NSC
(Thailand)
Galva
&
Sheet
Tin
&
Sheet
21
Baoshan Steel
(No.3)
Sheet
2000
47
22
TATA Steel
(India)
Galva
&
Sheet
2000
48
23
Nisshin Steel
(Toyo)
Galva
&
Sheet
2000
49 Tosyali Toyo Steel
(Osmaniye, Turkey)
24
Maanshan Steel
(China No.1)
Galva
&
Sheet
2004
50
25
Baoshan Steel
(No.4)
Galva
&
Sheet
2005
26
Lianyuan Steel
(China)
Galva
&
Sheet
2005/
2010
Notes
: Shiftable roll
: Future plan
Guangxi Steel
(Fang cheng gang,
China)
Baoshan Steel
(Zhanjiang No.2,
China)
Market Share
Supplied
by
PTJ
Supplied
by
Others
Total
50plants
(64%)
28plants
(36%)
78plants
(100%)
PTJ
(64%)
Above Primetals Technologies Japan, Ltd. supply of 50
plants since 1980 will mark 64% on the world share of
the major Continuous TCM during this period
4
1. TANDEM COLD MILL (TCM)
1.1 UCM-MILL The Simple Approach to Best Performance
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1DUURZ*DXJH5ROOLQJ
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UHVSRQVLEOHIRUZRUNUROOGHµHFWLRQ8&00,//JLYHVPLOORSHUDWRUVJUHDWHUµDWQHVVFRQWURODQGVLPSOHRSHUDWLRQ
Intermediate Roll shifting
at Welding Point
Flying Gauge (Width) Change for Continuous Rolling
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4Hi-MILL
(L>W)
IDEAL MILL
L (Fixed)
(L=W)
UCM-MILL
L
W
Rolling load
Rolling load
(Changed)
Rolling load
Rolling load
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Intermediate
roll bending
Intermediate roll
Work roll
Strip
Strip
Work roll
Work roll
Work roll
bending
bending
IMR
Shifting
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Flat
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1 . Straight Work, Intermediate
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5
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3. Work roll and intermediate roll
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6
1. TANDEM COLD MILL (TCM)
7KH7DQGHP&ROG0LOOIRU&DUERQVWHHOHVSHFLDOO\IRUDXWRPRWLYHDSSOLFDWLRQVUHTXLUHVWKHFDSDELOLW\WRUROOZLWKKLJKUHGXFWLRQUDWLRV
IRUH[WUHPHO\GHHSGUDZQPDWHULDORUUROOXQGHUKLJKORDGFRQGLWLRQVIRUKLJKVWUHQJWKVWHHO)RUVXFKUHTXLUHPHQWVDVWDQGV
Severstal NA (After 2014, AK Steel) PL-TCM (Dearborn, USA)
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VPDOOZRUNUROOVDQGDKLJKUHVSRQVH+<523)V\VWHPSURGXFWLRQRIWKHVHPDWHULDOVLVDFKLHYHGZLWKH[FHOOHQWJDXJHDQGVKDSH
MAIN SPECIFICATION
accuracy.
No.
1.
Item
2.
Speed
Carbon steel
Tin Hiten 980
Hiten 1180 or more
No.3
No.4
No.5
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
: Entry
Width
WRPP
Coil weight
0D[NJ
Pickling speed
: Max. 290 m/min
Rolling speed
0D[PPLQ
Strip dividing speed
: Max.
Laser Beam Welder
4.
Pickling Type
R
i BoxO
Type
Mill Type
to 6.35 mm
: Delivery 0.37 (0.30) to 2.67 mm
Welder Type
Mill configuration for High strength steel (for reference)
No.2
Thickness
3.
5.
No.1
: Hot Rolled Carbon Steel
Material
Main Feature
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the UCM-MILL's excellent shape controllability is an indispensable key technology.
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DXWRPRWLYHDSSOLFDWLRQV7KHPLOOJXLGHV\VWHPDQGFRRODQWV\VWHPFRQ´JXUDWLRQKDVEHHQFDUHIXOO\
developed based on our vast experience to meet these requirements.
Description
Material
No.1
: 6Hi MILL (UCM)
No.2
: 6Hi MILL (UCM)
No.3
: 6Hi MILL (UCM)
No.4
: 6Hi MILL (UCM)
No.5
: 6Hi MILL (UCM)
250 m/min
No.6
LINE CONFIGURATION
UCM
Tension Leveller
Pickling Tank
TCM (5 Stands UCM)
Rotary
No.1 No.2 No.3 No.4 No.5 Shear
Side Trimmer
In-Line
Inspection
Welder
Looper
Looper
Looper
Pay-off Reel
Carrousel TR.
Hyundai Steel PL-TCM (Korea)
MAIN SPECIFICATION
No.
1.
Item
Material
Description
Material
: Hot Rolled Carbon Steel
Thickness
: Entry
1 .6։5.0 mm
: Delivery 0.30։2.3 mm
Width
WRPP
Coil weight 0D[NJ
2.
Speed
Pickling speed
: Max. 200 m/min
Rolling speed
0D[PPLQ
Strip dividing speed
: Max.
3.
Welder Type
Laser Beam Welder
4.
Pickling Type
R
i BoxO
Type
5.
Mill Type
No.1
: 6Hi MILL (UCM)
No.2
: 6Hi MILL (UCM)
No.3
: 6Hi MILL (UCM)
No.4
: 6Hi MILL (UCM)
No.5
: 6Hi MILL (UCM)
No.6
: 6Hi MILL (UCM)
250 m/min
LINE CONFIGURATION
Tension Leveller
Pickling Tank
Welder
Side Trimmer
TCM (6 Stands UCM)
No.1 No.2 No.3 No.4 No.5 No.6
Rotary Shear
Looper
Looper
Pay-off Reel
7
Carrousel TR.
Looper
8
1. TANDEM COLD MILL (TCM)
1.2 Silicon steel [Shougan Corporation / Qian’an (China)]
1.3 Tin plate [Wuhan Iron & Steel No.4 (China)]
MAIN SPECIFICATION
For Electrical (Silicon) Steels
Shougan Corporation has installed Coupled
Continuous Pickling and Tandem Cold Mill for the
electrical (Silicon) steel.
During rolling of hard material, the thickness
decreases sharply at the edge area. This is called
edge drop and is caused by longitudinal deviation of
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rolling, minimized edge drop is essential. To reduce
the edge drop, the UCMW-MILL, is applied which
consists of a work roll shift mechanism added to the
8&00,//FRQ´JXUDWLRQ
Work rolls are shifted by means of hydraulic cylinders
provided in each shifting block on the drive side of
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combining work roll shifting, intermediate roll
shifting, work roll bending, and intermediate roll
bending.
No.
Item
Description
: Hot Rolled Carbon Steel
Material
(QWU\ 1.8 to 3.5 mm
Thickness
1.
Material
: Delivery
0.15 to 0.55 mm
: 700 to 1,300 mm
Width
Coil weight : Max. 28,600 kg
By properly adapting all of the components, including the
UCM-MILL, mill guide, drive system, and coolant system, high
speed and stable rolling has been achieved.
Pickling speed
: Max.
Rolling speed
: Max. 2,000 m/min
Strip dividing speed
: Max.
2.
Speed
3.
Welder Type
Laser Beam Welder
4.
Pickling Type
Jet Bath
5.
Mill Type
No.1
: 6Hi MILL (UCM)
No.2
: 6Hi MILL (UCM)
No.3
: 6Hi MILL (UCM)
No.4
: 6Hi MILL (UCM)
No.5
: 6Hi MILL (UCM)
220 m/min
260 m/min
LINE CONFIGURATION
Tension Leveller
Pickling Tank
Side Trimmer
TCM (5 Stands UCM)
No.1 No.2 No.3 No.4 No.5
Welder
Rotary Shear
MAIN SPECIFICATION
No.
Looper
Item
Thickness
1.
Looper
Description
Material
Material
0.35 to 0.65 mm
: 750 to 1,300 mm
1.4 Stainless steel [Baoshan Stainless Steel (China)]
Coil weight : Max. 30,000 kg
2.
Speed
Pickling speed
: Max.
Rolling speed
: Max. 1,200 m/min
Strip dividing speed
: Max.
3.
Welder Type
Laser Beam Welder
4.
Pickling Type
Shallow
5.
Mill Type
Looper
Pay-off Reel
(QWU\ 2.0 to 3.0 mm
: Delivery
Width
Carrousel TR.
: Special Steel
200 m/min
MAIN SPECIFICATION
300 m/min
No.
Description
Material
No.1
: 6Hi MILL (UCMW)
No.2
: 6Hi MILL (UCMW)
No.3
: 6Hi MILL (UCMW)
No.4
: 6Hi MILL (UCMW)
No.5
: 6Hi MILL (UCMW)
1.
LINE CONFIGURATION
Material
(QWU\WRPP
: Delivery
Width
0.3 to 3.0 mm
: 730 to 1,630 mm
Coil weight : Max. 30,000 kg
2.
Built for Cold Rolled Strip for electrical (silicon) steel
applications.
6SHFL´FDOO\WKHSLFNOLQJWDQNFRQVLVWVRIXQLTXHO\
designed shallow bath tanks for easier removal of silicon
sludge.
The UCMW-MILL minimizes edge drop through the addition
of a work roll shifting mechanism.
: Hot Rolled (Pickled) Stainless Steel
: Hot Rolled (Pickled) Carbon Steel
Thickness
UNIQUE FEATURES
Work Roll Shift Mechanism
Item
When Carbon steel and Stainless steel are processed on the
same line, the Tandem Cold Mill is usually applied in the form of
a continuous TCM without pickling line due to the difference in
the pickling process between carbon and stainless steels.
7RPHHWVHYHUHVXUIDFHTXDOLW\UHTXLUHPHQWVWKHPLOOJXLGH
and coolant system design are optimized.
3.
4.
Speed
Welder Type
Mill Type
(QWU\VSHHG
: Max. 650 m/min
Rolling speed
: Max.1,300 m/min
Strip dividing speed
: Max. 300 m/min
Laser Beam Welder
No.1
: 6Hi MILL (UCM)
No.2
: 6Hi MILL (UCM)
No.3
: 6Hi MILL (UCM)
No.4
: 6Hi MILL (UCM)
No.5
: 6Hi MILL (UCM)
LINE CONFIGURATION
Tension Leveller
Pickling Tank
Welder
Side Trimmer
TCM (5 Stands UCM)
No.5 No.4 No.3 No.2 No.1
TCM (5 Stands UCMW)
No.1 No.2 No.3 No.4 No.5
Welder
Rotary Shear
Pay-off Reel
Rotary Shear
Looper
Looper
Carrousel TR.
Pay-off Reel
9
Looper
Carrousel TR.
Looper
10
2. REVERSING COLD ROLLING MILL
3ULPHWDOV7HFKQRORJLHV-DSDQ/WGKDVDSSOLHGWKH8&00,//LQD5HYHUVLQJFRQ´JXUDWLRQIRUDSSOLFDWLRQV
with annual production capacities of 100,000 to 400,000 ton/y. The Reversing Cold Rolling Mill allows for the
SURGXFWLRQRIKLJKTXDOLW\SURGXFWVZLWKWKHFDSDELOLW\RIµH[LEOHUROOLQJIRUPDQ\NLQGVPDWHULDODQGWKLFNQHVV
combinations. Our mills have been rolling these products, combining easy operation and rapid start-ups under
stable conditions, since 1974.
2.2 Equipment layout
Main Feature
This mill is equipped with advanced an Automatic Gauge Control system (AGC) using a high response
Hydraulic Roll Positioning Device (HYROP) and X-ray type thickness gauge meters to obtain a higher
WROHUDQFHVWDQGDUGRI´QLVKHGWKLFNQHVV
In addition, to achieve high quality strip shape, this mill is equipped with an Automatic Shape Control
system (ASC), which includes multi-zone cooling headers at the entry side of the mill and shape
measuring sensors on the delivery side.
No.1 RCM in Everbright (China)
Strip of 0.15t x 1,000w
2.1 Start-up advantage
In addition to these technologies, based on our vast
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and stable rolling conditions for high quality products.
Actual Rolling Speed of RCM
No.
Actual Rolling Speed (mpm)
0.25t
1200
0.30t 0.40t
0.29t
1000
0.40t
0.55t
0.55t
800
0.55t
0.70t
1.00t
0.85t
0.70t
600
0.85t
0.85t
400
1.15t
1.5t
200
1.15t
0
0
5
10
15
20
Date after 1st. Rolling (days)
11
25
Supply Record of UCM-MILL for Reversing Cold Rolling Mill
for Carbon steel and Silicon steel from 1974
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Customer
Hitachi Metals, Yasugi, Japan
Toyo Kohan, Kudamatsu, Japan
Borcelik, Turkey
Jiangsu Jiagnan Industrial Group, China
Changshu Ev erbright Material Technology, China
Changshu Xingdao Adv anced Building Material, China
Changshu Ev erbright Material Technology, China
Beijing Shougang, China
Yantai North Steel, China
Maanshan Iron & Steel, China
Maanshan Iron & Steel, China
China Changshu Xinghai Advanced Building Material, China
China Changshu Xingyu Advanced Building Material, China
China Changshu Xinghai Advanced Building Material, China
Zhejiang Southeast Metal Sheet, China
Tainjin No.1 Steel, China
Tainjin No.2 Steel, China
Maanshan Iron & Steel, China
ACCIL Auto Steel Pv t. Limited, India.
Mill Type
Start-up
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
UCM
HYPER-UCM
UCM
2000
2001
2004
2005
2005
2007
2008
2006
2006
2007
2008
2008
2008
2008
2010
2010
2010
2013
2015
12
2. REVERSING COLD ROLLING MILL
2.3.1 Mill Type
2.3 Copper rolling
6PDOOZRUNUROOLVHVVHQWLDOIRU8OWUDWKLQ&RSSHUDQG%UDVV´QLVKLQJUROOLQJDQGLQRUGHUWRSURGXFHYHU\VWULFW
VXUIDFHTXDOLW\FRLOVHJPHQWHGVXSSRUWUROOVDUHQRWSUHIHUDEOH
+L8&00,//LVWKHPLOOZKLFKUHDOL]HVWKHVHUHTXLUHPHQWV
UCM-MILL
CR-MILL
ZR-MILL
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DUHDYDLODEOHIRUGLIIHUHQWPDWHULDOJDXJHVVKDSHDQG
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Main Feature
7KHIHDWXUHRI+L8&00,//
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PLFURQPHWHURIXOWUDWKLQPDWHULDOZLWKRXWVHJPHQWHGVXSSRUW
rolls
5ROOLQJRLOLVVSUD\HGIURPHQWU\VLGHDQGQRQFRQWDFWW\SHVWULS
ZLSLQJV\VWHPLVHTXLSSHGDWH[LWVLGHZKLFKDFKLHYHWRSURGXFH
YHU\VWULFWVXUIDFHTXDOLW\
$XWRPDWLFVWULSVKDSHFRQWURO$6&ZLWK)XVV\FRRODQWFRQWUROLV
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UCM-MILL
STRIP WIDTH
Effective for strip edge shape
1)
WR Bending Effect
Pre-set Control for each width
2)
IMR Shift Effect
Effective for middle shape of strip
3)
IMR Bending Effect
M type
Effective for every part shape of strip
1)+2)+3)
W type
2.3.2 Strip Shape Control Function for UCM-MILL
13
3URYLGHGE\+LWDFKL/WG
14
2. REVERSING COLD ROLLING MILL
2.4.2 High Strength Spindle
2.4 HYPER UC-MILL
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Strength Steel (HSS) rolling. This technology is also applicable for rolling high grades of non-grain oriented silicon
steel and tin products. The technology development is based on the following concepts:
- Optimized roll diameter combination (work, intermediate and back-up rolls)
:RUN5ROO'ULYHQ6\VWHP
WRDFKLHYHKLJKµDWQHVVFRQWUROODELOLW\
- Development of a high strength spindle for WORK ROLL DRIVE
Main Feature
Optimized Combination of Work,
Intermediate and Back-up Rolls
When investigating the combination of roll diameter,
there are two major limitations such as load limit to
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contact stress between rolls. The graph on the right
shows the relationship between these limits. The
hatched part is the maximum allowable rolling force.
The graph also shows the calculated reduction ratio at
the maximum allowable load. The graph shows that the
HYPER UC-MILL covers the range of the highest
achievable reduction;
MH Spindle
Load Limit due to roll contact stress
A high strength spindle called the "MH Spindle" was
developed, with a strength 2.7 times stronger than a
conventional universal joint type spindle. The "MH Spindle"
makes it possible to drive the work rolls of the HYPER
UC-MILL, even though the work roll diameter is much smaller
than compared to a standard UCM-MILL. The spindle strength
comparison is shown on the left.
Load Limit due to strip shape
Reduction Ratio under
above limit condition
2.4.3 1st Stand (Maanshan Steel/China)
Maanshan Steel in China has started commercial
production in 2013 as the 1st HYPER UC-MILL
HYPER UC-MILL
Conventional UCM-MILL
0.12
0.15
0.18
0.21
0.24
0.27
Type
Material
Product Thickness
Width Range
0.30
(Work Roll Diameter) / (Strip Width)
: Reversing Single Stand
: Silicon Steel
: 0.35 - 0.65 mm
: 900 - 1,280 mm
(Work Roll Diameter)/(Strip Width) = 0.18 - 0.24
2.4.1 Reference (Comparison of Work Roll Diameter)
Sm
Work Roll Diameter / Strip Width
0.5
all
er
2.4.4 Qualification test of "MH Spindle"
W
0.4
or
kR
ol
lD
iam
0.3
4XDOL´FDWLRQWHVWZDVSHUIRUPHGDWWKHFROGUROOLQJWHVWPLOO
et
er
Passline
0.2
0.1
15
L
IL
L
-M
IL
C
-M
U
M
ER
HYPER UC-MILL
YP
6H
iU
C
C
iH
6H
Standard UCM-MILL
H
C
on
ve
nt
io
M
na
-M
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IL
H
L
i
0
16
3. DOUBLE COLD REDUCTION MILL
The DCR/Temper mill is designed to meet the customer's needs for double cold reduction and two-stand temper rolling. The DCR
process, after reduction in a tandem cold mill, further reduces the annealed strip on the No.1 stand and temper rolls the strip on the No.2
3.2 A-COMPANY
stand. This process imparts the desired mechanical strength to the strip. In two-stand temper rolling, the strip is temper rolled in both the
No.1 and No.2 stands to the required elongation ratios to obtain the desired mechanical characteristics.
Features
High Productivity
- High Speed Rolling
- Automatic Strip Threading
Main Feature
High Quality Products
- ASC with UCM function
- High Response Push Up System (HYROP-F)
- High Response AC Motor
- Up-to-date AGC & AEC techniques
AEC : Automatic Elongation Controll
UCM-MILL's function on DCR/Temper rolling :
Both mill stands are of 6Hi UCM-MILL design for excellent shape controllability, heavy reduction
capability, and stable rolling.
NO.
EQUIPMENT
NO.1 std
For Ultra-Thin Products
- Two kinds of Work Rolls : Large/Small Diameter
NO.2 std
6Hi UCM-MILL
Large WR & Small WR (option)
1
Mill Type
2
AGC System
Applied
Applied
(option)
3
Coolant System
Applied
Applied
(option)
4
Skinpass oil System
Applied
Applied
(for West Temper) (for West Temper)
Specification
No.
Operation Mode
1
No.1 std
Reduction (Wet)
1. Mill Operation Mode
DCR (Double Cold Reduction) & Wet Temper rollingխ
No.2 std
0DLQ0LOO6SHFL´FDWLRQ
- Product thickness
: ։ 0.25 mm
- Strip Width
: ։ 1,270 mm
- Max. speed
: Approx. 2,000 m/min
- Capacity
: Approx. 270,000 ton/year
Wet Temper
DCR
5
WR/IMR Change
6
BUR Bearing
7
Shape Control System
Automatic
Automatic
Roller Bearing
Roller Bearing
-
Applied
2
Reduction (Wet) Reduction (Wet)
3
Wet Temper
Wet Temper
Wet Temper
3.1 BAOSTEEL (Cold Rolling Sheet Steel Plant)
SUPPLY REFERENCE
Features
High Productivity
- High Speed Rolling
High Quality Products
- ASC with UCM function
- High Response Push Up System (HYROP-F)
- High Response AC Motor
- Up-to-date AGC & AEC techniques
- Dry and Wet Multi-function Rolling Mode
- High Performance Dust Exhaust System
For Thinner and Harder Products
- Two kinds of Work Rolls : Large/Medium Diameter
No.
1
NO.
1
2
17
Operation Mode
NO.1 std
NO.2 std
Reduction (Wet)
(25~35%)
Dry Temper
Reduction (Wet)
(25~35%)
Wet Temper
Dry Temper
Dry Temper
Wet Temper
Wet Temper
DCR
Temper
0DLQ0LOO6SHFL´FDWLRQ
- Product thickness
: 0.10 ։ 0.80 mm
- Strip Width
: 700 ։ 1,050 mm
- Max. speed
: 1,500 m/min (TPM)
1,200 m/min (DCR)
- Capacity
: Approx. 250,000 ton/year
Nagoya
Mill Type
Application Start-up
TPM
DCR
1965
Comb.
No.
User
Mill Type
Application Start-up
13
Ton-Yi Industrial
Corporation (Taiwan)
TPM
1994
1968
14
Toyo Kohan
Kudamatsu
DCR
1995
2
Nisshin Steel Co., Ltd.
Sakai
3
Nippon Steel Corp
Nagoya
TPM
1970
15
Bao Steel
China
TPM
1998
4
JFE Steel
Chiba
TPM
DCR
1971
16
POSCO
Pohang, Korea
TPM
DCR
2002
5
Toyo Kohan
Kudamatsu
TPM
DCR
1974
17
Bao Steel
Yichang, China
TPM
DCR
2002
6
CSN (Brazil)
TPM
1981
18
POSCO
Pohang, Korea
TPM
2005
7
Nippon Steel Corp.
Yawata
TPM
1981
19
Erdemir
(Revamping), Turkey
TPM
DCR
2005
8
JFE Steel
Chiba
TPM
1983
20
S Company
(Revamping), Thailand
DCR
9
JFE Steel
Kurashiki
TPM
1983
21
WIN Steel
Wuhan, China
TPM
2 01 4
TPM
1990
22
WIN Steel
Wuhan, China
TPM
2 01 4
TPM
DCR
1991
23
Tosyali Toyo Steel
Osmaniye, Turky
TPM
DCR
2016
TPM
1992
Specification
1. Mill Operation Mode
DCR (Double Cold Reduction) & Temper rolling
User
Nippon Steel Corp
10
11
12
TATA Steel (Netherland)
(Former Hoogovens)
Nippon Steel Corp
Nagoya (Revamping)
POSCO
Kwangyang, Korea
INLINE
2013
BATCH
18
4. TEMPER/SKINPASS MILL (TPM/SPM)
Several types of SPMs have been supplied for Tin plate, Sheet, as well as Galvanized plate applications, to meet
a variety of customer requirements. Both Batch type and In-line SPMs are available. Recent application are as
follows:
4.2 Inline CAL Skinpass Mill
Features
Basic Mill application
- 6MB, UCM-MILL
- Excellent elongation, shape control, and stable rolling
- Wide range of materials from soft steel (IF steel) to
high strength steel (1470MPa) can be rolled with one straight roll
- High speed roll changing
- Fume exhaust system
6Hi UCM-MILLs are supplied in response to recent requirements to roll harder material, such as hard tin
plate and HSS, with improved strip shape control capability. 4Hi MILLs have been provided for rolling of
softer steel grades.
Examples of SPM type and application for different materials (Hardness)
Harder
Mill Type or Application
6SHFL´F5ROOLQJ)RUFHWRQmm)
WRQmm
WRQmm
FI
FI
Fw
Fw
FI
Fw
FI
FI
FI
FI
Fw
FI
WRQmm !WRQmm
Fw : WR Bender
4Hi MILL
Mill Type
F I : IMR Bender
HCM MILL
4.3 Inline CGL Skinpass Mill
UCM MILL
6MB-MILL
6Hi MILL with Effective Bender
UCM-MILL
: IMR Shift
Conventional
Batch SPM
Application
Current Requirement
Conventional
Current
Requirement
CAL
Basic Mill type for each products and facility
- Tin plate : 2 stands 6Hi UCM-MILL
- Sheet
: Single stand 6Hi UCM-MILL or 5MB*, 6MB*
- CGL
- CA&GL
: Single stand 4Hi MILL or 5MB*
: Single stand 6Hi UCM-MILL
* 5MB for CGL and 6MB for CAL are available for cost merit reasons
4.1 Inline temper Mill
Features
-
2 stand 6Hi HCM, UCM-MILL
Excellent elongation, shape control, and stable rolling of thin strip
Wide range of materials from T2 to T5 grade can be rolled with one straight roll
High speed roll changing
Dust exhaust system with polisher for Dry rolling
4Hi MILL & High pressure spray type polisher
No.2 ROLL
POLISHER
- 5MB, 4Hi MILL application for the better quality
- High pressure spray type polisher
High pressure (20 MPa) demi-water spray
Better roll surface quality for WR & BUR
Effective spray with less splashing
- Brush roll type polisher
- High speed roll changing
No.2 MILL
No.1 MILL
No.1 ROLL POLISHER
Features
FI
FI
Fw
Fw
5MB-MILL
5Hi MILL with Effective Bender
SUPPLY REFERENCE
No.1 ANTI CRIMPING ROLL
No.1 ROLL POLISHER
No.2 ROLL POLISHER
19
No.
CROSS BREAKING ROLL
Layout
1
2
3
4
5
Customer
%$26+$1,52167((/&KLQD
%(1;,,52167((/&KLQD
167((/-DSDQ
SOME COMPANY
*8$1*=+28-)(67((/&KLQD
Mill Type
Start-up
Inline (CAL) UCM (6Hi)
CAL, UCM (6Hi)
CGL & CAPL UCM (6Hi)
CGL & CAL UCM (6Hi)
CAL, UCM (6Hi)
2004
2006
2006
2009
2010
20
5. CLUSTER MILL
5.1.2 Comparison of strip shape controllability (calculated)
5.1 Advanced ZR-MILL/20Hi (KZR)
Our company produces Advanced ZR-MILL/20Hi (KZR), Advanced Split Housing ZR-MILL/20Hi (HZ) and CR MILL/12Hi (CR) for
&OXVWHU0LOO7KHVH&OXVWHU0LOOVXWLOL]HVXOWUDVPDOOGLDPHWHUZRUNUROOVWRHI´FLHQWO\UROOKLJKKDUGQHVVPDWHULDOVVXFKDV6WDLQOHVV
steel, Silicon steel strips, High carbon steel and Copper alloy. Our company have actual result more than one handred mills for
Single AS-U
Cluster mill.
Double AS-U
Main Feature
(I-unit)
(I-unit)
200
200
-5 scale
LoZer Limit
150
242 I-unit
150
88 I-unit
The Advanced ZR-MILL (KZR) is a mill for the cold rolling of hot-rolled coils of stainless steel and other hard
PDWHULDOVWRWKHGHVLJQDWHGSURGXFWWKLFNQHVVDQGVWULSVKDSHDFFXUDF\7KHXOWUDVPDOOGLDPHWHUUROOVDUH´UPO\
supported in a 20Hi roll cluster arrangement and are contained inside a mono-block structure housing. As the result,
this mill makes high mill modulus come true .
With a conventional ZR-MILL, the bending system for the backing bearing shafts that control the shape (the AS-U
system) contains only 2 (shafts B, C) of the 4 upper backing bearing shafts (shafts A, B, C, D). As a result, the strip
VKDSHFRQWUROFDSDELOLW\LVLQVXI´FLHQWDQGWKHUHDUHSUREOHPVZKLFKPDNHKLJKVSHHGUROOLQJZLWKKLJKUROOLQJ
UHGXFWLRQGLI´FXOW7RUHVROYHWKLVZHGHYHORSHGDQGSURGXFHGWKH$GYDQFHG=50,//.=57KLVPLOOLVHTXLSSHG
ZLWKDGRXEOH$68V\VWHPIRUWZRXSSHUEDFNLQJEHDULQJVVKDIWV$DQG%WRJHWKHUZLWKEHDULQJVKDIWV&DQG'
DQGDOVRLQFOXGHVQHZDXWRPDWLFVKDSHFRQWUROWKDWXWLOL]HVIX]]\ORJLFFRQWURO%HFDXVHWKLV.=50,//LVFDSDEOHRI
KLJKVSHHGUROOLQJZLWKKLJKUROOLQJUHGXFWLRQLWFDQGHOLYHUDERRVWWRSURGXFWLYLW\IRUUROOLQJRIVWDLQOHVVVWHHODQG
other hard materials.
100
50
100
50
0
-600
-400
-200
0
0
200
400
600
-600
0
-400
-50
Our Technology
Features
Capability & Effect
-100
Width
-200
0
200
400
0
600
-50
+5 scale
Upper Limit
-100
Width
a) Convention ZR MILL (single AS-U)
b) KZR-MILL (double AS-U)
Strip Shape control capability of Double AS-U is 2.8 times as high as
conventional single AS-U system (=242/88)
5.1.3 Actual Result
Features
KZR MILL
-
5.1.1 Layout
Customer
Mill Type
Mill Speed
Product
Completion
: NIPPON METAL INDUSTRY CO., LTD. Kinuura, Japan
: KZR-MILL/ZR21AN-52
: 800 m/min
: Stainless Steel 0.2 mm–1,320 mm
: 1991
Features
L.H TENSION REEL
ZR-MILL
R.H TENSION REEL
FEED LEVELLER
-
Customer
Mill Type
Mill Speed
Product
Completion
: NISSHIN STEEL CO., LTD. Sakai, Japan
: KZR-MILL/ZR21AN-52
: 800 m/min
: Special Steel 0.2 mm–1,300 mm
: 2008
PAY OFF REEL
21
22
5. CLUSTER MILL
5.2 Advanced Split Housing ZR-MILL/20Hi (HZ)
5.2.2 Main Feature of HZ-MILL
Main Feature
6) Measuring Rolling
Force by Load Cell
1 ) Double AS-U &
1 st IMR Shifting during
Because the housing is split into upper and lower sections, there is a large gap between the upper and lower work
rollers. This makes threading and the strip cutting cobble process easier.
In a conventional ZR-MILL (ZR), the 20Hi rollers are supported in a cluster arrangement and are contained inside a
mono-block structure housing. Although this structure is compact, the gap between the upper and lower work rolls
is small, and extra work is required in some cases for the threading and the strip cutting cobble processes.
For this reason, we developed and produced the Advanced Split Housing ZR-MILL (HZ) which splits the
mono-block housing into an upper and lower section, supported by 2 outer housings. Because this HZ Mill has a
housing that is split into an upper and lower section, the gap between the upper and lower work rolls is large,
facilitating the threading and the strip cutting cobble processes. In addition, unlike the mono-block ZR-MILL, the
work rolls can be used in nearly their full range regardless of the diameter of intermediate rolls 1 and 2, for greater
operability. For above reason, HZ MILL receives especially a high evaluation for Silicon steel and special steel rolling.
Improved Pre-set
Accuracy
High Shape Control Ability
(2.4։2.8 times Larger than
Single AS-U)
4) More free roll
diameter combination
5) Neuro/Fuzzy
Shape Control
More Easy Operation
High Speed Stable Rolling
by Control of AS-U & 1st
IMR Shifting
2) Large roll
-open
clearance Approx.
80mm
3) High Response by
Direct Main Cylinder
5.2.1 HZ-MILL Construction
More easy strip
threading and
disposal broken strip
Improved Gauge
Accuracy
Features
1 ) High Shape Control Ability by Double AS-U
2) More easy strip threading and disposal broken strip by Large roll-open clearance
3) Improved Gauge Accuracy by High response direct main cylinder
4) More easy Operation by more free roll diameter combination
5) High Speed Stable Rolling by Neuro/Fuzzy shape control
6) Improved Pre-set Accuracy by measuring Rolling Force by Load Cell
Backing
Bearing Shaft
Assembly
5.2.3 HZ-MILL Actual Result
Outer Housing
Double AS-U
Device
Passline
Adjustment
Device
Top
Inner
Housing
Features
-
21 type HZ-MILL for 4 feet
Standard roll diameter:
Work roll dia. : ħ80mm
1st IMR dia.
: ħ138mm
2nd IMR dia.
: ħ235mm
B.BRG dia.
: ħ406.4mm
Width
: Max.1,300mm
Max. R.S..F
: 10.8 MN
HZ-MILL Inner Housing
Bottom
Inner
Housing
Main Jack
23
Features
-
Customer
Mill Type
Mill Speed
Product
Completion
: Shougang Co.,LTD., China
: HZ-MILL/HZ21N-51
: 800m/min
: Silicon Steel 0.17mm–1,300mm
: 2011
24
5. CLUSTER MILL
5.3 CR-MILL/12Hi (CR)
5.3.2 Shape Control Capability
Main Feature
Actuator for Shape Control
The CR MILL/12Hi (CR) is a mill originally developed for the cold rolling of stainless steel, copper alloys,
and nickel alloys. There are fewer roll levels than in a conventional ZR-Mill/20Hi and the CR MILL is
superior in strip shape control characteristics. A large usable range of work roll diameters allows rolling of
a vast variety of materials, including soft, hard and ultrathin, under stable and highly precise operating
conditions. The CR MILL has been adopted to roll copper alloys and, in particular, full-hard materials.
The Top and Bottom Back Up Roll Frames are split and allow for automatic roll changes, easier strip
threading, and easier maintenance. In addition, an oscillation function has been added to the intermediate
roll, preventing backup bearing marks from being transferred to the strip. This mill is used for materials
which have strict surface requirements.
Conversion of an existing 4Hi MILL housing to a CR MILL is possible.
=խFeatures of the CR MILLխ=
the CR MILL contains 12 rolls in a Cluster type arrangement,
the CR MILL achieves excellent strip shape control through split type BUR, bending control of IMR, and
leveling control with push up cylinder,
the CR MILL is capable of high-reduction rolling through the use of small diameter work rolls.ħ120։ħ45
BUR Crown Push Out
BUR Crown
Control
٥Top/Bottom Different Segmentation
٥Individual Push Out of Each Bearing

Bender Force
IMR Bender
٥High Response Hydraulic Control
٥Non-Symmetrical Bender (WS/DS)
٥No Tapering on IMR

Levelling (DS-WS)
Levelling
٥Quick Response Hydraulic AGC
٥Easy Operation
(DS)

(WS)
Individual Push Out of BUR
Top/Bottom BUR different Segmentation
5.3.1 Construction
CR-MILLխ
Actual Data of strip shape control accuracy
խխխխխխխխGreen  deviation rangeխp5I -unit
խխխխխխխխYellow deviation rangeխp10I -unit
BUR Crown
Control Motor
Individual Push Out of BUR
‡ Shape Controlling Function can be more powerful, by Top and Bottom BURs
having Same Controlling Function, to Push-Out Each BUR bearing individually
WR
5.3.3 CR-MILL Actual Result
Chockless Work Roll (WR)
Features
-
Mill Drive
Pinion Stand
Customer
Mill Type
Mill Speed
Product
Completion
: Mitsubishi Electric Metecs Co., Ltd., Japan
: CR-MILL
: 600 m/min
: Copper alloy : 0.05mm–900mm
: 2007
Top BUR Frame
Intermediate Roll (IMR)
Top BUR Frame
Features
-
BUR
25
Bottom BUR Frame
12Hi Cluster Rolling Mill (CR-MILL)
Customer
Mill Type
Mill Speed
Product
Completion
: Outokumpu Stainless AB, Sweden
: CR-MILL
: 800 m/min
: StainlessSteel : 0.1mm–1,100mm
: 2006
26