In terms of cemented carbide materials, the substitution of iron and nickel for cobalt was popular in the past few years. For example, the high-strength and toughness cemented carbide equivalent to YG15, YG2O, and YG25 developed by Hunan Metallurgical Materials has received good results in cold pier die and cold extrusion die. GY (15-20) cemented carbide mold material is equivalent to YG2O in rolling forging of standard parts and steel ball cold pier.
In recent years, new research hotspots are fine-grained, ultra-fine-grained, and even nanocrystalline cemented carbides and graded cemented carbides. Gradient cemented carbide has composition gradient, microstructure gradient, etc. In addition, there is also a metal melt infiltration treatment method to produce gradient cemented carbide, such as gradient cemented carbide top hammer. Fine-grained and ultra-fine-grained cemented carbides are also on the market. For example, the fine-grained YG8 wire drawing die is 3 times that of the general wire drawing die when drawing wires with less than 1 mm.
- Maintenance and Main…
- How to control the c…
- Four stages of cemen…
- Hardness Testing of …
- Strong demand for co…
