Zhuzhou Lizhou Cemented Carbide Co., Ltd.
INTEGRITY INNOVATION, COMMON DEVELOPMENT
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Ygr30 Ygr40 Tungsten Carbide Roller Cemented 2.4um-4.0um
Grain Size For Prefinishing Mill
Product Description& application:
Tungsten carbide roller (also known as cemented carbide roll ring) possesses good thermal conduction property. Compared with other materials,it is much better in terms of heat-resistance,wear- resistance resistance and strength.What ’s more,its hardness reduces a little under the condition of high temperature.So ,the cemented carbide roll rings is invented with the ap-pearance of high speed wire rod mill.With the development and improvement,it is widely applied in the
production of high speed wire,bar and deformed steel bar.
As far as 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 2200 Mpa and(46) x106J/ m'respectively.Its hardness and wear resistance come from tungsten carbide (Wc) while the toughness and strength depend on the binding agent (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 therear stands, we shall pay more attention to the wear-resistance and thermal fatigue resistance of roll rings.
At present, our company can mass diameter <=380mm, thickness <=130mm rolls. We have annual production capacity of 200 tons, which fully meet the steel bar and wire rod manufactures demand for the tungsten carbide roll rings.
Production Process:
Below are the production processes of tungsten carbide rods, to ensure high quality, we assureed our customers that:
1. All materials are tested in terms of density, hardness and T.R.S before use.
2. Every piece of product goes through in-process and final inspection.
3. Every batch of product can be traced.
Recommended Grade: LR30/LR40/LR45/LR55/LR60
| Grade | Density | Hardness | Grain size | Bending Strength |
| g/mm3 | HPA | μm | N/mm2 | |
| LR30 | 14.00 | 83.5 | 2.4—4.0 | 2360 |
| LR40 | 13.75 | 82.5 | 2.4—4.0 | 2400 |
| LR45 | 13.65 | 81.0 | 2.4—4.0 | 2250 |
| LR55 | 13.20 | 79.5 | 2.4—4.0 | 2400 |
| LR60 | 12.90 | 79.0 | 2.4—4.0 | 2200 |
Avaliable Dimension:
| Type | Dimension | ||
| D(mm) | D(mm) | H(mm) | |
| HR-156×94×70 | 156 | 92 | 62 |
| HR-156×87×62 | 156 | 87 | 61 |
| HR-158.8×87.32×62 | 158.8 | 87.32 | 62 |
| HR-170.66×95×70 | 170.66 | 95 | 70 |
| HR-170.66×95×57.35 | 170.66 | 95 | 57.35 |
| HR-180×87.32×72 | 180 | 87.32 | 72 |
| HR-180×120.65×72 | 180 | 120.65 | 72 |
| HR-210.5×120.65×72 | 228.3 | 120.65 | 72 |
| HR-212 ×120 ×60 | 212 | 120 | 60 |
| HR-228.3×126×72 | 228.3 | 126 | 72 |
| HR-228×135×72 | 228 | 135 | 72 |
| HR-228×130×72 | 228 | 130 | 72 |
| HR-228.34×130×44.476 | 228.34 | 130 | 44.476 |
| HR-285×160×95 | 285 | 160 | 95 |
| HR-285×160×70 | 285 | 160 | 70 |
| HR-300×160×70 | 300 | 160 | 70 |
Advantages
1. LIZHOU is a professional tungsten carbide roll ring manufacturer in China with over 24 years’ experience and many senior engineers who specialize in tungsten carbide fields for many years.
2. For your non-standard tungsten carbide roller or cemented carbide roller, we have the very ability to make molds by ourselves, and produce them as per your requirements.
3. Our company has acquired the certificate of quality management system. We have strict quality control and assurance system to guarantee the consistent quality.
4. Our tungsten carbide roll rings last much longer than the conventional and hardened steel rolls. Clients can maximize their production before having to change new rolls.
5. Samples and quotations of tungsten carbide rollers will be offered upon receipt of your further requirements. We promise fast delivery.