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Tungsten carbide roll ring for high-speed wire rod mill
SINOSTEEL 1/14
Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com
Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com
CATALOGUE
TUNGSTEN CARBIDE ROLL RINGS
BEIJING SINO STEEL ENGINEERING & EQUIPMENT CO., LTD.
2018.06.06
Tungsten carbide roll ring for high-speed wire rod mill
SINOSTEEL 2/14
Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com
Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com
1. APPLICATION:
Tungsten carbide roll ring is applied to high-speed wire rod mill or Cold rolling ribbed steel bar mill.
Tungsten carbide roll ring possesses good thermal conduction property.Compared with other materials,it is
with higher heat-resistance,wear-resistance and strength.The hardness reduces less under the condition of
high temperature.So,It is invented with the ap-pearance of high speed wire rod mill.
With the development and improvement,it is widely applided in the production of high speed wire,bar and
deformed steel bar.
The material for our products,there are two series as Wc-Co and Wc-Co-Ni-Cr,which possess the good
comprehensive mechanical properties.The bending strength and impact toughness reach 2800 Nmm2 and
(4-6)*106J/㎡ respectively. The hardness and wear resistance is subject to tunsten carbide (WC), while the
toughness and strength depend on the binder (Co-Ni-Cr).
At present,the finishing mill is generally composed of 8-10 stands.Because of the big size of fracture surface
of rolled part,the collar on the front stands of finishing mill may resist heavy duty and strong impact.Thus,the
high hardness and good thermal fatigue resistance are the primary factors,which are prior to wear-resistance.
While there is low load and impact for the rear stands, we shall pay more attention to the wear-resistance and
thermal fatigue resistance of roll rings.
This manual describes the grades and properties of our Tunstan carbide roll rings in details, so that it is
helpful for you to make choice & operion, eaily.
Tungsten carbide roll ring for high-speed wire rod mill
SINOSTEEL 3/14
Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com
Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com
2. PRODUCT SERIES
2.1 Flat roll series
2.2 Grooved roll series
2.3 Ragged roll series
3. PRODUCT FEATURE
3.1 Advanced processes
3.2 Stable mechanical property
3.3 High resistance to impact, hot crack and corrosion
4. PROCESS
4.1. World-class-advanced paraffin process and spray drying grain-making process (see. Picture 1), by which
property of grain can be ensured.
4.2 500-ton alpha press imported form USA.(see. Picture 2)
4.3 Hot isostatic press.(see. Picture 3)
4.4 L-HIR low-voltage sintering furnace, which was newly imported so as to highly improve internal structure
of raw material of roll ring. (see. Picture 4)
4.5 D403 grinding machine specially used for roll ring (see. Picture 5) as well as finisher specially used for
grooving and shaping from Germany can ensure the dimension precision of finish-grinding of roll ring.
5. EQUIPMENT
Pic. 1 Pic.3 Pic. 4
Tungsten carbide roll ring for high-speed wire rod mill
SINOSTEEL 4/14
Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com
Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com
Pic, 2 Pic. 5
Product:
Roll Rings
SINOSTEEL 5/14
Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com
Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com
6 Material Grade, Application and Technical Data
6.1 GRADES
TR & YGR (Wo+Ni+Cr-binder) , YGH series (Wo-binder)
Grade Recommendation applications
TR06
It possesses the highest hardness and best wear-resistance among all the varieties of tungsten carbide toll rings, thus used for
the rolling of common wire and hard wire on the last stands of high-speed wire rod finishing mill.
TR08
It possesses better wear-resistance and moderate impact-resistance with the hardness second to TR06 among all the
varieties, thus used at the last two stands of high-speed wire rod finishing mill .
TR10
It possesses the moderate wear-resistance and impact-resistance and good versatility, thus used at the third-fourth stands
from the bottom of high-speed wire rod finishing mill or all the stands .
TR12 Because of the best versatility, it is used at the front stands of finishing mill and rear stands of common rolling mill.
TR14
It is usually used at the first or second of finishing mill, and also applies to the stands of rolling machine with low speed and
accuracy and varied technology.
YGH20 With high hardness. it is used for the rolling of common wire and hard wire at the last two stands of finishing mill.
YGH25 With good wear-resistance and moderate impact-resistance, it is used at the last two stands of finishing mill.
YGH30
With moderate wear-resistance and impact-resistance and good versatility, it is used at the last four stands of finishing mill or
all the stands.
YGH40 With the best versatility, it is used at the front stands of finishing mill and rear stands of common rolling mill.
YGH45
It is used at first two stands of finishing mill as well as the stands of pre-finishing mill, and also applied to the stands of rolling
machine with low speed and accuracy and varied technology.
YGH55 Because of fine toughness and hot crack resistance, it is used for the stands of pre-finishing mill and hot rolled steel collar.
YGR20 High wear resistance and corrosion resistance. Used in the last 1-2 stands of finishing mills.
YGR25 High wear resistance and corrosion resistance. Used in the last 1-3 stands of finishing mills.
YGR30
Good toughness, wear resistance, corrosion resistance and thermal crack resistance. Used in the middle and rear stands of
finishing mill.
YGR40
Good toughness and thermal crack resistance, good for general purposes .Used in most stands of the finishing mill and in the
rear stands of common mill.
YGR45 Good toughness and thermal crack resistance. Used in the front stands of finishing mills.
YGR55
Good impact resistance. Used in the stands of pre-finishing rolling mills for hot rolling ribbed steel bars and they can be
machined with turning and milling
YGR60 Good impact resistance. Used for hot rolling ribbed steel bars and in the first and second stands of pre-finishing rolling mills
Roll Rings
SINOSTEEL 6/14
Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com
Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com
6.2 APPLICATION
Grade series
Stands
of prefinish rolling mills
Stands
of finish rolling mills
Stands
for reducing diamenter
1 2 3 4 1 2 3 4 5 6 7 8 9 10 1 2 3 4
◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎
YGR20 YGH20 ○ ○
YGR25 YGH25 ○ ○ ● ●
YGR30 YGH30 ○ ○ ○ ○ ● ● ○ ○
YGR40 YGR40 ● ● ○ ○ ● ● ● ● ○
YGR45 YGH45 ○ ○ ● ●
YGR50 YGH50 ● ● ○ ○ ▲
YGR60 ○ ○ ● ● ▲
TR06 ○ ○ ○ ○ ○
TR08 ○ ●
TR10 ○ ○ ○ ●
TR12 ○ ○ ○ ● ● ●
TR14 ○ ○ ● ● ●
○ First
● Second
▲ Hot-rolled deformed steel bars
Note: For YGH series (Wo-binder), Cooling water: PH≥7.2
For YGR、TR series (Wo+Ni+Cr-binder), Cooling water: PH≤7.2
Roll Rings
SINOSTEEL 7/14
Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com
Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com
6.3 TECHNICAL DATA
TR & YGR (Wo+Ni+Cr-binder) , YGH series (Wo-binder)
Grades Wc(%) Co(%) Ni(%) Cr(%)
Density
g/cm
3
WC
grain
μ m
Hardness
≥HRA
Bending strength
≥Nmm2
Compression
strength
≥Nmm2
TR06 94 6 14.9±0.15 2-4 88.0 2300 4200
TR08 92 8 14.7±0.15 2-4 87.5 2400 4100
TR10 89 11 14.3±0.15 2-4 86.5 2500 3900
TR12 86 14 14.0±0.15 2-4 85.0 2600 3600
TR14 82 18 13.6±0.15 2-4 83.0 2500 3300
YGR60 70 30 12.8±0.15 2-4 78.0 2200 2900
YGR55 75 25 13.1±0.15 2-4 80.0 2400 3000
YGR45 80 20 13.5±0.15 2-4 82.5 2500 3100
YGR40 82 18 13.7±0.15 2-4 83.5 2600 3200
YGR30 85 15 14.2±0.15 2-4 85.0 2700 3300
YGR25 88 12 14.3±0.15 2-4 86.5 2300 3400
YGR20 90 10 14.4±0.15 2-4 87.5 2400 3500
YGH55 75 25 - - 12.9±0.15 2-4 80.0 2500 3000
YGH45 80 20 - - 13.4±0.15 2-4 82.0 2500 3100
YGH40 82 18 - - 13.6±0.15 2-4 83.5 2500 3200
YGH30 85 15 - - 13.9±0.15 2-4 83.5 2400 3300
YGH25 88 12 - - 14.1±0.15 2-4 85.0 2300 3400
YGH20 90 10 - - 14.8±0.15 2-4 86.0 2500 3500
Roll Rings
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Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com
Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com
6.4 SIZE & ALLOWABLE DEVIATION
1、The allowable deviation of carbide roll rings:
Radial runout of groove ≤0.013mm
Radial runout of periphery≤0.013mm
End face runout ≤0.02mm
End face planeness ≤0.01mm
End face parallelism ≤0.01mm
Inner hole cylindericity ≤0.01mm
2、Roughness of carbide rolls
Inner hole roghness 0.4um
Periphery roughness 0.4um
End face roughness 0.4um
Note:
The allowable deviation in extermal diameter,internal diameter and height is to be determined, based on sustomer's need
Roll Rings
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Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com
Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com
7. Reference Size
No. Specifications OD(js7) Inner hole
Thickness
(js9)
/ /
Radial
runout
Face
runout
Inner
hole
0
(6
class)
//
□
Chamfer
Blank
TypeInner hole
Outer
circle
1 G155NE345 Φ 155.68±0.02 Φ 87.31
0
01.0
69.95±0.03 0.01 0.013 0.01 0.006 0.01 1.5×45° 3×45° GH155B
2 G156NA106 Φ 1.56.28±0.02 Φ 87.32
005.0
022.0


69.9±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 10×1 GH156B
3 G156NA106A Φ 156.28±0.02 Φ 87.32
005.0
022.0


57.25±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 10×1 GH156C
4 G158ND530 Φ 158.75±0.02 Φ 87.313
005.0
022.0


62.9±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 8.5×5 GH158C
5 G158NA106 Φ 158.75±0.02 Φ 87.313
005.0
022.0


70±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 10×1 GH158B
6 G170NE145 Φ 170.66±0.02 Φ 94
005.0
022.0


57.3±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 1×45° GH170A
7 G170NE145A Φ 170.66±0.02 Φ 94
005.0
022.0


70±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 1×45° GH170B
8 G173NE145A Φ 173±0.02 Φ 95
005.0
022.0


69.05±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 1.5×45° GH173A
9 G178NE145A Φ 178.3±0.02 Φ 94.7
005.0
022.0


62.3±0.03 0.01 0.013 0.01 0.006 0.01 1.5×45° 1.5×45° GH178A
10 G180NE145A Φ 180±0.03 Φ 110
005.0
03.0


55
0
04.0
0.01 0.013 0.01 0.006 0.01 1.5×45° 1.5×45° GH180A
11 G186NE345 Φ 186
0
0.02
Φ 87.315
005.0
022.0


71.95±0.03 0.01 0.013 0.01 0.006 0.01 1.5×45° 3×45° GH186A
12 G206NA106 Φ 206.4±0.023 Φ 120.65
0
01.0


71.9±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45° 10×1 GH206A
13 G206NA106A Φ 206.65±0.023 Φ 120.66
005.0
025.0


71.7±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45° 10×1 GH206A
14 G208NE345 Φ 208±0.023 Φ 110
005.0
022.0


71.95±0.037 0.01 0.013 0.01 0.006 0.01 2×45° 3×45° GH208A
15 G208NS314 Φ 207.97±0.023 Φ 126
005.0
025.0


65.46±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45°
1.5×45
12.5×3
GH208B
Roll Rings
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Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com
16 G208ND330 Φ 207.97±0.023 Φ 126
005.0
025.0


72.95±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45° 5.5×3 GH208C
17 G208NS314A Φ 207.97±0.023 Φ 126
02.0
04.0


65.46±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45°
1.5×45°
12.5×3
GH208B
18 G208ND330A Φ 207.97±0.023 Φ 126
02.0
04.0


72.95±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45° 5.5×3 GH208C
19 G208NE345 Φ 208±0.023 Φ 128
005.0
025.0


72.05±0.037 0.01 0.013 0.01 0.008 0.01 3×45° 3×45° GH208D
20 G210NE145A Φ 210±0.023 Φ 119.99
005.0
022.0


72±0.037 0.01 0.013 0.01 0.008 0.01 2×45° 0.5×45° GH210C
21 G210ND230A Φ 210±0.023 Φ 135
005.0
025.0


71.975±0.025 0.01 0.013 0.01 0.008 0.01 3×45° 4×30° GH210A
22 G210ND330 Φ 210.5±0.023 Φ 120.65
005.0
025.0


71.96±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45°
10×3
(Grooved
55×3)
GH210B
23 G216NB310A Φ 216.37±0.023 Φ 160
005.0
025.0


64.2±0.037 0.01 0.013 0.01 0.008 0.01 2×45°
10°±5′
×3.5
GH216A
24 G220NE145A Φ 220±0.023 Φ 131
005.0
025.0


70.05±0.03 0.01 0.013 0.01 0.008 0.01 1.6×45° 1.6×45° GH220B
25 G228NE145 Φ 228.34±0.023 Φ 130
005.0
025.0


71.75±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45° 1×45° GH228A
26 G228NE145A Φ 228.57±0.023 Φ 129.99
005.0
025.0


83±0.043 0.01 0.013 0.01 0.008 0.01 1.5×45° 1.5×45° GH228B
27 G275NE145A Φ 275±0.026 Φ 170
005.0
025.0


94.95±0.037 0.01 0.013 0.01 0.008 0.01 2×45° 1.5×45° GH275A
28 G285NE145A Φ 285±0.026 Φ 159.98
005.0
025.0


70±0.037 0.01 0.013 0.01 0.008 0.01 1×45° 1×45° GH285A
29 G285NE145 Φ 285±0.026 Φ 159.98
005.0
025.0


95±0.043 0.01 0.013 0.01 0.008 0.01 1×45° 1×45° GH285B
Roll Rings
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Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com
Roll Rings
SINOSTEEL 12/14
Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com
Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com
8. CAUTION
Tungsten carbide roll rings is composed of tunsten carbide and binding metal,which is one kind of tool material with high hardness and good wear-resistance.In
order to make full use of the above advantages of Tungsten carbide roll rings,during manufaceturing of high-speed wire rod, it shall pay more attention to the
following items.
8. 1.Make the correct choice for the tungstan carbide for the finishing mill.
Before determining the grade of cemented carbide for every stand, it shall have a through understand about their properties so as to make the correct choice
(Please refer to the above).
8.2.Installation of cemented carbide roll rings
The sleeve insertion and assmbly of tungsten carbide roll rings shall be carried out in accordance with the requirements of precision.There shall be appropriate
space between the roll rings and axle or between the roll rings and sleeve. It is neither tight nor loose.It should be checked whether the roll rings conforms to
the technological requirement, and clean the mounting surface of roll rings,sleeve and axle before the installation.It is prohibited to beat the roll rings with
hammer or other hard things while assemblying.
8. 3.Requirement for the cooling of rings and cooling water during rolling
Because of the negative effect of heat corrosion,thermal fatigue and thermal stress, the net-shaped thermal fatigue crack usually appears while working.With
the increase of cracks,small parts may come off and even the roll rings is broken.We adopt the cooling method to reduce the bad effect,prevent the cracksfrom
stretching and prolong the durability of rolling froove,which plays an positive role on the Tungsten carbide roll rings.
The paramenters of colling water are as follows:
Temperature no more than 35℃, pressure of 0.4-0.6Mpa,flow of 24-30m³per stand per hour, radical direcction for spraying water, the angle of 15-30°between
the spraying direction and rotating direction of roll rings. The water is twice as wide as the rolling groove, and directly sprayed into the groove without scattering.
Roll Rings
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Water quality requirement:
For YGR (Wo+Ni+Cr-binder) & YGH series (Wo-binder), Cooling water: PH≥7.2
For YGR、TR series (Wo+Ni+Cr-binder), Cooling water: PH≤7.2
The content of solid particles in the water<15 milligram/L
8. 4. Reasonal production
It is inevitable to find the microcrack on the rolling groove.The microcrack will gradually be extended,stretched and deepened.The groove shall be re-grinded
immediately, while the depth of crack is reaching to 0.2-0.4mm.
Otherwise,the crack will be deepened quickly,which leads to a risk of broken TC ring.
The range of normal production is regulated as dollows, it should be reginded when it is reached.:
Stands of pre- finishing roll mill: (3500-4000) tons
1-2 Stands of finishing rolling mill: (1800-2500) tons
3-4 Stands of finishing rolling mill: (1800-2500) tons
5-6 Stands of finishing rolling mill: (1500-2000) tons
7-8 Stands of finishing rolling mill: (1200-1500) tons
9-10 Stands of finishing rolling mill: (800-1200) tons
Stands for reducing diamenters: (800-1200) tons
8.5.Regrinding of groove
It is normal to find the microcrack on the rolling groove.The groove shall be reginded immediately while the depth of crack reaching 0.2-0.4mm.It is necessary
Roll Rings
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to prevent the roller from being broken.While regrinding, it must ensure to remove the crack thoroughly.Otherwise,it will bring a potential risk to next rolling.It is
difficult and inconvenient to check if the surface is polishing.To ensure the complete remove of microcrack,it can increase the grinding quantity.Under the
normal condition,the regrinding is controlled in the range of:
Roll rings for stands 9-10 of finishing rolling mill: (0.4-0.6)mm
Roll rings for stands1-8 of finishing rolling mill: (0.7-1.2)mm
Roll rings for s~nds of pre-finishing rolling mill: (1.2-2.0)mm
9. Packing:
BUILDING OUR FUTURE TOGETHER
BEIJING SINO STEEL ENGINEERING & EQUIPMENT CO., LTD.

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Tungsten carbide ring, TC ring

  • 1. Tungsten carbide roll ring for high-speed wire rod mill SINOSTEEL 1/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com CATALOGUE TUNGSTEN CARBIDE ROLL RINGS BEIJING SINO STEEL ENGINEERING & EQUIPMENT CO., LTD. 2018.06.06
  • 2. Tungsten carbide roll ring for high-speed wire rod mill SINOSTEEL 2/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com 1. APPLICATION: Tungsten carbide roll ring is applied to high-speed wire rod mill or Cold rolling ribbed steel bar mill. Tungsten carbide roll ring possesses good thermal conduction property.Compared with other materials,it is with higher heat-resistance,wear-resistance and strength.The hardness reduces less under the condition of high temperature.So,It is invented with the ap-pearance of high speed wire rod mill. With the development and improvement,it is widely applided in the production of high speed wire,bar and deformed steel bar. The material for our products,there are two series as Wc-Co and Wc-Co-Ni-Cr,which possess the good comprehensive mechanical properties.The bending strength and impact toughness reach 2800 Nmm2 and (4-6)*106J/㎡ respectively. The hardness and wear resistance is subject to tunsten carbide (WC), while the toughness and strength depend on the binder (Co-Ni-Cr). At present,the finishing mill is generally composed of 8-10 stands.Because of the big size of fracture surface of rolled part,the collar on the front stands of finishing mill may resist heavy duty and strong impact.Thus,the high hardness and good thermal fatigue resistance are the primary factors,which are prior to wear-resistance. While there is low load and impact for the rear stands, we shall pay more attention to the wear-resistance and thermal fatigue resistance of roll rings. This manual describes the grades and properties of our Tunstan carbide roll rings in details, so that it is helpful for you to make choice & operion, eaily.
  • 3. Tungsten carbide roll ring for high-speed wire rod mill SINOSTEEL 3/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com 2. PRODUCT SERIES 2.1 Flat roll series 2.2 Grooved roll series 2.3 Ragged roll series 3. PRODUCT FEATURE 3.1 Advanced processes 3.2 Stable mechanical property 3.3 High resistance to impact, hot crack and corrosion 4. PROCESS 4.1. World-class-advanced paraffin process and spray drying grain-making process (see. Picture 1), by which property of grain can be ensured. 4.2 500-ton alpha press imported form USA.(see. Picture 2) 4.3 Hot isostatic press.(see. Picture 3) 4.4 L-HIR low-voltage sintering furnace, which was newly imported so as to highly improve internal structure of raw material of roll ring. (see. Picture 4) 4.5 D403 grinding machine specially used for roll ring (see. Picture 5) as well as finisher specially used for grooving and shaping from Germany can ensure the dimension precision of finish-grinding of roll ring. 5. EQUIPMENT Pic. 1 Pic.3 Pic. 4
  • 4. Tungsten carbide roll ring for high-speed wire rod mill SINOSTEEL 4/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com Pic, 2 Pic. 5 Product:
  • 5. Roll Rings SINOSTEEL 5/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com 6 Material Grade, Application and Technical Data 6.1 GRADES TR & YGR (Wo+Ni+Cr-binder) , YGH series (Wo-binder) Grade Recommendation applications TR06 It possesses the highest hardness and best wear-resistance among all the varieties of tungsten carbide toll rings, thus used for the rolling of common wire and hard wire on the last stands of high-speed wire rod finishing mill. TR08 It possesses better wear-resistance and moderate impact-resistance with the hardness second to TR06 among all the varieties, thus used at the last two stands of high-speed wire rod finishing mill . TR10 It possesses the moderate wear-resistance and impact-resistance and good versatility, thus used at the third-fourth stands from the bottom of high-speed wire rod finishing mill or all the stands . TR12 Because of the best versatility, it is used at the front stands of finishing mill and rear stands of common rolling mill. TR14 It is usually used at the first or second of finishing mill, and also applies to the stands of rolling machine with low speed and accuracy and varied technology. YGH20 With high hardness. it is used for the rolling of common wire and hard wire at the last two stands of finishing mill. YGH25 With good wear-resistance and moderate impact-resistance, it is used at the last two stands of finishing mill. YGH30 With moderate wear-resistance and impact-resistance and good versatility, it is used at the last four stands of finishing mill or all the stands. YGH40 With the best versatility, it is used at the front stands of finishing mill and rear stands of common rolling mill. YGH45 It is used at first two stands of finishing mill as well as the stands of pre-finishing mill, and also applied to the stands of rolling machine with low speed and accuracy and varied technology. YGH55 Because of fine toughness and hot crack resistance, it is used for the stands of pre-finishing mill and hot rolled steel collar. YGR20 High wear resistance and corrosion resistance. Used in the last 1-2 stands of finishing mills. YGR25 High wear resistance and corrosion resistance. Used in the last 1-3 stands of finishing mills. YGR30 Good toughness, wear resistance, corrosion resistance and thermal crack resistance. Used in the middle and rear stands of finishing mill. YGR40 Good toughness and thermal crack resistance, good for general purposes .Used in most stands of the finishing mill and in the rear stands of common mill. YGR45 Good toughness and thermal crack resistance. Used in the front stands of finishing mills. YGR55 Good impact resistance. Used in the stands of pre-finishing rolling mills for hot rolling ribbed steel bars and they can be machined with turning and milling YGR60 Good impact resistance. Used for hot rolling ribbed steel bars and in the first and second stands of pre-finishing rolling mills
  • 6. Roll Rings SINOSTEEL 6/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com 6.2 APPLICATION Grade series Stands of prefinish rolling mills Stands of finish rolling mills Stands for reducing diamenter 1 2 3 4 1 2 3 4 5 6 7 8 9 10 1 2 3 4 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ YGR20 YGH20 ○ ○ YGR25 YGH25 ○ ○ ● ● YGR30 YGH30 ○ ○ ○ ○ ● ● ○ ○ YGR40 YGR40 ● ● ○ ○ ● ● ● ● ○ YGR45 YGH45 ○ ○ ● ● YGR50 YGH50 ● ● ○ ○ ▲ YGR60 ○ ○ ● ● ▲ TR06 ○ ○ ○ ○ ○ TR08 ○ ● TR10 ○ ○ ○ ● TR12 ○ ○ ○ ● ● ● TR14 ○ ○ ● ● ● ○ First ● Second ▲ Hot-rolled deformed steel bars Note: For YGH series (Wo-binder), Cooling water: PH≥7.2 For YGR、TR series (Wo+Ni+Cr-binder), Cooling water: PH≤7.2
  • 7. Roll Rings SINOSTEEL 7/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com 6.3 TECHNICAL DATA TR & YGR (Wo+Ni+Cr-binder) , YGH series (Wo-binder) Grades Wc(%) Co(%) Ni(%) Cr(%) Density g/cm 3 WC grain μ m Hardness ≥HRA Bending strength ≥Nmm2 Compression strength ≥Nmm2 TR06 94 6 14.9±0.15 2-4 88.0 2300 4200 TR08 92 8 14.7±0.15 2-4 87.5 2400 4100 TR10 89 11 14.3±0.15 2-4 86.5 2500 3900 TR12 86 14 14.0±0.15 2-4 85.0 2600 3600 TR14 82 18 13.6±0.15 2-4 83.0 2500 3300 YGR60 70 30 12.8±0.15 2-4 78.0 2200 2900 YGR55 75 25 13.1±0.15 2-4 80.0 2400 3000 YGR45 80 20 13.5±0.15 2-4 82.5 2500 3100 YGR40 82 18 13.7±0.15 2-4 83.5 2600 3200 YGR30 85 15 14.2±0.15 2-4 85.0 2700 3300 YGR25 88 12 14.3±0.15 2-4 86.5 2300 3400 YGR20 90 10 14.4±0.15 2-4 87.5 2400 3500 YGH55 75 25 - - 12.9±0.15 2-4 80.0 2500 3000 YGH45 80 20 - - 13.4±0.15 2-4 82.0 2500 3100 YGH40 82 18 - - 13.6±0.15 2-4 83.5 2500 3200 YGH30 85 15 - - 13.9±0.15 2-4 83.5 2400 3300 YGH25 88 12 - - 14.1±0.15 2-4 85.0 2300 3400 YGH20 90 10 - - 14.8±0.15 2-4 86.0 2500 3500
  • 8. Roll Rings SINOSTEEL 8/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com 6.4 SIZE & ALLOWABLE DEVIATION 1、The allowable deviation of carbide roll rings: Radial runout of groove ≤0.013mm Radial runout of periphery≤0.013mm End face runout ≤0.02mm End face planeness ≤0.01mm End face parallelism ≤0.01mm Inner hole cylindericity ≤0.01mm 2、Roughness of carbide rolls Inner hole roghness 0.4um Periphery roughness 0.4um End face roughness 0.4um Note: The allowable deviation in extermal diameter,internal diameter and height is to be determined, based on sustomer's need
  • 9. Roll Rings SINOSTEEL 9/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com 7. Reference Size No. Specifications OD(js7) Inner hole Thickness (js9) / / Radial runout Face runout Inner hole 0 (6 class) // □ Chamfer Blank TypeInner hole Outer circle 1 G155NE345 Φ 155.68±0.02 Φ 87.31 0 01.0 69.95±0.03 0.01 0.013 0.01 0.006 0.01 1.5×45° 3×45° GH155B 2 G156NA106 Φ 1.56.28±0.02 Φ 87.32 005.0 022.0   69.9±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 10×1 GH156B 3 G156NA106A Φ 156.28±0.02 Φ 87.32 005.0 022.0   57.25±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 10×1 GH156C 4 G158ND530 Φ 158.75±0.02 Φ 87.313 005.0 022.0   62.9±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 8.5×5 GH158C 5 G158NA106 Φ 158.75±0.02 Φ 87.313 005.0 022.0   70±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 10×1 GH158B 6 G170NE145 Φ 170.66±0.02 Φ 94 005.0 022.0   57.3±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 1×45° GH170A 7 G170NE145A Φ 170.66±0.02 Φ 94 005.0 022.0   70±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 1×45° GH170B 8 G173NE145A Φ 173±0.02 Φ 95 005.0 022.0   69.05±0.037 0.01 0.013 0.01 0.006 0.01 1.5×45° 1.5×45° GH173A 9 G178NE145A Φ 178.3±0.02 Φ 94.7 005.0 022.0   62.3±0.03 0.01 0.013 0.01 0.006 0.01 1.5×45° 1.5×45° GH178A 10 G180NE145A Φ 180±0.03 Φ 110 005.0 03.0   55 0 04.0 0.01 0.013 0.01 0.006 0.01 1.5×45° 1.5×45° GH180A 11 G186NE345 Φ 186 0 0.02 Φ 87.315 005.0 022.0   71.95±0.03 0.01 0.013 0.01 0.006 0.01 1.5×45° 3×45° GH186A 12 G206NA106 Φ 206.4±0.023 Φ 120.65 0 01.0   71.9±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45° 10×1 GH206A 13 G206NA106A Φ 206.65±0.023 Φ 120.66 005.0 025.0   71.7±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45° 10×1 GH206A 14 G208NE345 Φ 208±0.023 Φ 110 005.0 022.0   71.95±0.037 0.01 0.013 0.01 0.006 0.01 2×45° 3×45° GH208A 15 G208NS314 Φ 207.97±0.023 Φ 126 005.0 025.0   65.46±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45° 1.5×45 12.5×3 GH208B
  • 10. Roll Rings SINOSTEEL 10/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com 16 G208ND330 Φ 207.97±0.023 Φ 126 005.0 025.0   72.95±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45° 5.5×3 GH208C 17 G208NS314A Φ 207.97±0.023 Φ 126 02.0 04.0   65.46±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45° 1.5×45° 12.5×3 GH208B 18 G208ND330A Φ 207.97±0.023 Φ 126 02.0 04.0   72.95±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45° 5.5×3 GH208C 19 G208NE345 Φ 208±0.023 Φ 128 005.0 025.0   72.05±0.037 0.01 0.013 0.01 0.008 0.01 3×45° 3×45° GH208D 20 G210NE145A Φ 210±0.023 Φ 119.99 005.0 022.0   72±0.037 0.01 0.013 0.01 0.008 0.01 2×45° 0.5×45° GH210C 21 G210ND230A Φ 210±0.023 Φ 135 005.0 025.0   71.975±0.025 0.01 0.013 0.01 0.008 0.01 3×45° 4×30° GH210A 22 G210ND330 Φ 210.5±0.023 Φ 120.65 005.0 025.0   71.96±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45° 10×3 (Grooved 55×3) GH210B 23 G216NB310A Φ 216.37±0.023 Φ 160 005.0 025.0   64.2±0.037 0.01 0.013 0.01 0.008 0.01 2×45° 10°±5′ ×3.5 GH216A 24 G220NE145A Φ 220±0.023 Φ 131 005.0 025.0   70.05±0.03 0.01 0.013 0.01 0.008 0.01 1.6×45° 1.6×45° GH220B 25 G228NE145 Φ 228.34±0.023 Φ 130 005.0 025.0   71.75±0.037 0.01 0.013 0.01 0.008 0.01 1.5×45° 1×45° GH228A 26 G228NE145A Φ 228.57±0.023 Φ 129.99 005.0 025.0   83±0.043 0.01 0.013 0.01 0.008 0.01 1.5×45° 1.5×45° GH228B 27 G275NE145A Φ 275±0.026 Φ 170 005.0 025.0   94.95±0.037 0.01 0.013 0.01 0.008 0.01 2×45° 1.5×45° GH275A 28 G285NE145A Φ 285±0.026 Φ 159.98 005.0 025.0   70±0.037 0.01 0.013 0.01 0.008 0.01 1×45° 1×45° GH285A 29 G285NE145 Φ 285±0.026 Φ 159.98 005.0 025.0   95±0.043 0.01 0.013 0.01 0.008 0.01 1×45° 1×45° GH285B
  • 11. Roll Rings SINOSTEEL 11/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com
  • 12. Roll Rings SINOSTEEL 12/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com 8. CAUTION Tungsten carbide roll rings is composed of tunsten carbide and binding metal,which is one kind of tool material with high hardness and good wear-resistance.In order to make full use of the above advantages of Tungsten carbide roll rings,during manufaceturing of high-speed wire rod, it shall pay more attention to the following items. 8. 1.Make the correct choice for the tungstan carbide for the finishing mill. Before determining the grade of cemented carbide for every stand, it shall have a through understand about their properties so as to make the correct choice (Please refer to the above). 8.2.Installation of cemented carbide roll rings The sleeve insertion and assmbly of tungsten carbide roll rings shall be carried out in accordance with the requirements of precision.There shall be appropriate space between the roll rings and axle or between the roll rings and sleeve. It is neither tight nor loose.It should be checked whether the roll rings conforms to the technological requirement, and clean the mounting surface of roll rings,sleeve and axle before the installation.It is prohibited to beat the roll rings with hammer or other hard things while assemblying. 8. 3.Requirement for the cooling of rings and cooling water during rolling Because of the negative effect of heat corrosion,thermal fatigue and thermal stress, the net-shaped thermal fatigue crack usually appears while working.With the increase of cracks,small parts may come off and even the roll rings is broken.We adopt the cooling method to reduce the bad effect,prevent the cracksfrom stretching and prolong the durability of rolling froove,which plays an positive role on the Tungsten carbide roll rings. The paramenters of colling water are as follows: Temperature no more than 35℃, pressure of 0.4-0.6Mpa,flow of 24-30m³per stand per hour, radical direcction for spraying water, the angle of 15-30°between the spraying direction and rotating direction of roll rings. The water is twice as wide as the rolling groove, and directly sprayed into the groove without scattering.
  • 13. Roll Rings SINOSTEEL 13/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com Water quality requirement: For YGR (Wo+Ni+Cr-binder) & YGH series (Wo-binder), Cooling water: PH≥7.2 For YGR、TR series (Wo+Ni+Cr-binder), Cooling water: PH≤7.2 The content of solid particles in the water<15 milligram/L 8. 4. Reasonal production It is inevitable to find the microcrack on the rolling groove.The microcrack will gradually be extended,stretched and deepened.The groove shall be re-grinded immediately, while the depth of crack is reaching to 0.2-0.4mm. Otherwise,the crack will be deepened quickly,which leads to a risk of broken TC ring. The range of normal production is regulated as dollows, it should be reginded when it is reached.: Stands of pre- finishing roll mill: (3500-4000) tons 1-2 Stands of finishing rolling mill: (1800-2500) tons 3-4 Stands of finishing rolling mill: (1800-2500) tons 5-6 Stands of finishing rolling mill: (1500-2000) tons 7-8 Stands of finishing rolling mill: (1200-1500) tons 9-10 Stands of finishing rolling mill: (800-1200) tons Stands for reducing diamenters: (800-1200) tons 8.5.Regrinding of groove It is normal to find the microcrack on the rolling groove.The groove shall be reginded immediately while the depth of crack reaching 0.2-0.4mm.It is necessary
  • 14. Roll Rings SINOSTEEL 14/14 Office: No.1 Beihuayuanjie, Sanjianfang, Chaoyang, Beijing 100024, China www.sinosteelengineering.com Tel: +861057280067 Cell: 0086-13811497114 market@sinosteelengineering.com to prevent the roller from being broken.While regrinding, it must ensure to remove the crack thoroughly.Otherwise,it will bring a potential risk to next rolling.It is difficult and inconvenient to check if the surface is polishing.To ensure the complete remove of microcrack,it can increase the grinding quantity.Under the normal condition,the regrinding is controlled in the range of: Roll rings for stands 9-10 of finishing rolling mill: (0.4-0.6)mm Roll rings for stands1-8 of finishing rolling mill: (0.7-1.2)mm Roll rings for s~nds of pre-finishing rolling mill: (1.2-2.0)mm 9. Packing: BUILDING OUR FUTURE TOGETHER BEIJING SINO STEEL ENGINEERING & EQUIPMENT CO., LTD.