 | ZHUZHOU HONGTONG TUNGSTEN CARBIDE CO.,LTD |
| ZHUZHOU HONGTONG TUNGSTEN CARBIDE CO.,LTD |
The carbide wire drawing dies adopt high-quality tungsten carbide as the core, which has high hardness, good thermal conductivity and low friction coefficient. Tungsten carbide wire drawing dies are simple to produce with corrosion-resistant, impact-resistant, and low cost which is the outstanding feature of this product. It is suitable for the drawing of ferrous metals, large-size wires, and occasions with poor wire drawing conditions.
When adopting high function and high-speed molds for production, the mold is required to have a long service life. In recent years, high-precision and high reliability are required even if for a small amount of production. Carbide dies with high durability will be the best choice.
Tungsten carbide wire drawing dies have the following features which ensure the high durability
The mold should be given a very large extrusion, bending stress, impact and other messy loads during the extrusion process. Therefore, the material selected will have high power resistance after heat treatment. The mold material should have outstanding hardenability to ensure that the mold can be hardened and uniform.
The mold should have high wear resistance to ensure normal service life and produce large quantities of extruded parts. In general, the hardness of steel is proportional to wear resistance under certain conditions. Therefore, mold materials must have sufficient hardenability. In addition to the hardness, The decisive factors are the thickness, composition, amount of excess for the matrix after heat treatment and the amount, size, type, dispersion, red hardness of carbide. The tungsten carbide has a content of more than 80% of WC, the wear resistance of which is several times higher than steel. So to get a long service life for the drawing mold, and carbide is mostly adopted for the materials.
For continuous production, the temperature of the mold sometimes will reach 200 ° C, which will reduce the strength and hardness, so that the mold material should have outstanding thermal stability. Carbide drawing dies have sufficient thermal stability for high-temperature resistance.
Cold extrusion mold has a long manufacturing time with high accuracy requirements. Usually, it is necessary to cast, cutting, heat treatment, grinding or other fine finishing. So only the materials that have good processability can meet the production needs. The excellent process of carbide molds will be the best choice.
Each drawing drum, over-line guides should be smooth, flexible, strictly controlled for beating tolerance. If the drum is found, the guide wheel has a worn trench and the drawing dies should be repaired in time.
Good lubrication is important to ensure the surface quality of the wire and extend the service life of the mold. The lubrication index should be checked frequently, removing the copper powder, impurities in the lubricant, so that the equipment hole can not be polluted. If the lubrication doesn’t work, it must be replaced in time and clean it.
Reasonable allotype is to ensure the surface quality of the wire and control size accuracy, reducing the wear of wire drawing drum and equipment operating load. For sliding wire drawing machines, it is necessary to familiarize with the mechanical elongation of the equipment. The sliding coefficient is reasonably selected, which is the primary step of fitting mold.
The surface reduction rate of each drawing and the material of the drawn wire are also closely correlated with the compression angle of the respective mold. The size of the compression angle is appropriately adjusted according to the size of the surface reduction rate.
When the drawing die reaches the service life, please replace it in time for repairing treatment to avoid excessive causing scrap the wire.
The tungsten carbide wire drawing dies are widely used for drawing in various industries. It has high hardness, excellent thermal stability, high durability and long service life and is one of the best mold materials.
| Grade No. |
Density (g/cm3) |
HRA |
T.R.S (Mpa) |
Application |
| YG3X | 14.9 | ≥91.5 | ≥1300 | For drawing non-ferrous metal wire and stainless-steel wire etc. |
| YG6 | 14.8 | ≥90.0 | ≥2150 | For drawing steel wire and stainless-steel wire etc. |
| YG6X | 14.8 | ≥92.0 | ≥1860 | For drawing nonferrous metal wire, steel wire, stainless steel wire. Good wear resistance and high toughness. |
| YG8 | 14.8 | ≥89.5 | ≥2320 | For drawing steel wire, stainless steel wire. Good general performance. |
| YG11 | 14.4 | ≥88.5 | ≥2420 |
For fabricating drawing dies of steel tubes and rods under high compressibility ratio; punching, stamping, forging tools under large stress. |
1. Tungsten carbide with high hardness, high wear resistance and high red hardness, at 550℃ still maintain more than 56HRC hardness.
2. Has a high modulus of elasticity, generally is (4~7)×104kg / mm2, and excellent rigidity at room temperature.
3. Have a high compressive strength which is greater than 6000MPa.
4. Have good resistance to oxidation and corrosion resistance, acid resistance, alkali resistance and high temperature not easily oxidized.
5. Has a low coefficient of thermal expansion, suitable for manufacturing high, precision, sharp die.
 | ZHUZHOU HONGTONG TUNGSTEN CARBIDE CO.,LTD |
As a professional tungsten carbide manufacturer from China, with more than 20 years’ experience, we have skilled engineers and technical know-how, to meet any of your carbide request.
