Why The Tungsten Carbide Wire Drawing Dies Are Durable

Posted by summer on April 28th, 2021

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

1. Strong power resistance

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.

2.Excellent wear resistance

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.

3.Sufficient thermal stability

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.

4.Excellent processability

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.

Tungsten carbide wire drawing dies have high hardness, excellent thermal stability, high durability and long service life and are one of the best mold materials.