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PCD Wire Drawing Dies VS Tungsten Carbide Wire Drawing Dies
Compared with tungsten carbide, the tensile strength of polycrystalline diamond ( PCD ) is only 70% of that of commonly used tungsten carbide, but its hardness is 2.5 times that of tungsten carbide. In this way, the polycrystalline diamond drawing die has
Nov 27th,2020
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PCD Wire Drawing Dies VS Tungsten Carbide Wire Drawing Dies
Compared with tungsten carbide, the tensile strength of polycrystalline diamond ( PCD ) is only 70% of that of commonly used tungsten carbide, but its hardness is 2.5 times that of tungsten carbide. In this way, the polycrystalline diamond drawing die has more advantages than the tungsten carbide drawing die. The wire drawing die made of polycrystalline diamond has good wear resistance, uniform inner hole wear, strong impact resistance and high wire drawing power. Therefore, now polycrystalline diamond molds are gradually being paid attention to in the metal wire drawing profession.
Compared with tungsten carbide wire drawing die, the use of polycrystalline diamond wire drawing die has the following obvious advantages:
1. High drawing power. The necessary maintenance of the wire drawing die during the use process is very important to the service life of the wire drawing die and the surface quality of the wire. Generally, it is recommended that customers maintain the polycrystalline diamond wire drawing die every 24 hours. Within 24 hours, the hole diameter of the polycrystalline diamond wire drawing die changes little, and the wire diameter change rate of the drawn wire is also very small. For the entire production process, the wire diameter compression rate of each drawing die is relatively stable, and the ratio of input to output is large.
2. Good abrasion resistance and long life. The life of the polycrystalline wire drawing die is about 30-50 times that of the tungsten carbide wire drawing die, so there is no need to shut down frequently to replace the die during the drawing process. The aperture of the polycrystalline wire drawing die has a small change per unit time, and the size of the drawn wire is small, which is very beneficial to the winding of the reel. Generally, the number of winding turns of the drawn wire is fixed. If the size of the wire product becomes larger quickly, the number of winding turns is relatively quickly reduced, which requires continuous changes in the size of the reel, which is not conducive to the improvement of production power.
3. Save raw materials. If a wire with a metal-plated surface is drawn, the electroplating process is not stopped during the process of stopping the drawing, which leads to the thickness of the electroplating layer on the surface of the wire being electroplated. Big damage, the more downtime, the bigger the damage. The use of polycrystalline diamond molds can greatly reduce this waste.
4. Reduce labor intensity. Because the polycrystalline wire drawing die has a long life and slow number expansion, there is no need to replace the die frequently, and unlike the carbide drawing die, you must always pay attention to the change of the wire size, which greatly reduces the labor intensity of the workers. A worker is in the production process Can coordinate 4~5 drawing machines.
For more detail of PCD wire drawing dies and tungsten carbide wire drawing dies, please feel free to contact info@maxcarbide.com
