轧机介绍(带图片)

Double AS-U
Edge wave
Feature of High Speed Silicon Steel Rolling
6
0.14 0.12 0.1 0.08 0.06 0.04 0.02 0
0
Acceleration
Friction Coefficient
High Speed Rolling Large Rolling Load Deviation at Acc.& Dec.
Needs Heavy Rolling for middle & high grade silicon steel High total Reduction 1st Round Rolling
HGO:App.90%,HNO:App.80%
5
Capability
Technical Solution Tough & High Shape Control KZR-MILL
Rolling Speed (m/min)
Thick Gauge High Speed Rolling
Rolling Force (Ton) 800 700 600 500 400
0 200 400 600 800
Acceleration
Edge wave
Deceleration
High Shape Control Ability High Performance ASC
Thin finish gauge Min. 0.15mm Hard Material Silicon Steel
High Performance Automatic Shape Control
Neuro/Fuzzy Control
பைடு நூலகம்
At Acceleration & Deceleration
High Speed Rolling Large Rolling Load Deviation at Acc.& Dec. Large Roll Defection Large Shape Deviation at Acc. & Dec. High Shape Control Ability
10
B A
C D
B A
C D
(I-unit)
200
(I-unit) -5 scale Lower Limit
200
150
150
100
100
50
50
0
0
88 I-unit
-50 -50
-100
+5 scale Upper Limit
242 I-unit
-100
Width
Width
a) Convention ZR mill (single AS-U)
2
Double As-U
HZ-MILL (Large Size) Supply Record
① NIPPON STEEL YAWATA ② HITACH CABLE ③ Some Company Korea ④BAOSHAN NO.1 IRON & STEEL ⑤BAOSHAN NO.2 IRON & STEEL ⑥Some Company Japan ⑦WUHAN NO.1 IRON & STEEL ⑧WUHAN NO.2 IRON & STEEL ⑨ Some Company Korea ⑩Some Company Japan 1300mm Width For Special Steel 2001 Start up 700mm Width 1300mm Width 1300mm Width 1300mm Width 1300mm Width 1300mm Width 1300mm Width 1300mm Width 1300mm Width For Copper 2001 Start up
For Silicon Steel 2006 Start up For Silicon Steel 2008 Start up (Planning) For Silicon Steel 2008 Start up (Planning) For Special Steel 2008 Start up (Planning) For Silicon Steel 2008 Start up (Planning) For Silicon Steel 2008 Start up (Planning) For Silicon Steel 2009 Start up (Planning) For Special Steel 2009 Start up (Planning)
More Easy Operation
③ High Response by Direct Main Cylinder
Improved Gauge Accuracy
② Large rollopen clearance Approx. 80mm
More easy strip threading and disposal broken strip
Strip shape controllability of Double AS-U system is: δ2/δ1 = 2.4 times In case of ZR22BN,ZR21AN
δ2 P b) Double AS-U
Double AS-U Effect
Comparison of strip shape controllability (calculated)
１
HZ-MILL for Silicon Steel
（M-H Split housing type 20 High Sendzimir Mill）
Double As-U
January, 2008
M-H HZ-MILL（ Split housing type 20 High Sendzimir Mill)(1/2)
Double AS-U Effect for High Speed Rolling (Calculation)
8
Double AS-U
Double AS-U Effect (1/2)
9
Strip shape controllability of Double AS-U system
a) Conventional single As-U system P・δ1=2×0.41P・δ･･････ (1) Where, P; Rolling load δ1 ; Displacement of work roll when B and C backing bearing shafts are moved by δ in screw-down direction. 0.56P A 0 b) Double AS-U system P・δ2=2× (0.41P・δ+ 0.56P・δ)･･････ (2) P Where, P ; Rolling load δ2 ; Displacement of work roll when A,B,C and D backing bearing shafts are moved byδ in screw-down direction. 0.41P B c) Comparison of Double AS-U with conventional single AS-U system A δ 0.56P δ δ 0.41P C 0.56P D δ a) Single AS-U system (conventional ZR-mill) δ1 B δ δ 0.41P 0.41P C 0.56P D 0
20 High Cluster & High Rigid HZ-MILL Construction Design
High Shape Control Ability
Double AS-U
Edge wave
Requirement for Silicon Steel Rolling and their technical solutions(2/2)
Requirement for Silicon Steel Rolling and their technical solutions(1/2)
Needs Heavy Rolling for middle & high grade silicon steel High total Reduction 1st Round Rolling
④
⑤ Neuro/Fuzzy Shape Control
High Speed Stable Rolling by Control of AS-U & 1st IMR Shifting
more free roll diameter combination
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Double AS-U
Neuro/Fuzzy Control
Rolling Speed(m/min)
Thickness;1.88→1.73mm Width;1250mm SUS 304
Construction of Single ASU-System
7
Single AS-U
Construction of Double ASU-System
3
① Double AS-U & 1 IMR Shifting during rolling
st
⑥ Measuring Rolling Force by Load Cell
Improved Pre-set Accuracy
High Shape Control Ability (2.4～2.8 times Larger than Single AS-U)