The difference between special-shaped cemented carbide and ordinary alloys lies in their significant differences in composition, structure, performance characteristics and scope of application. The editor below will conduct a detailed analysis from the following aspects:
1. Different material compositions
Special-shaped cemented carbide is a high-hardness composite material based on tungsten-cobalt alloy and precision processed through multiple processes such as high pressure and high temperature. Tungsten-cobalt alloy is a cemented carbide made from tungsten powder and cobalt powder through mixing, drying, shaping, sintering and other processes. Its main components are tungsten and cobalt, and it is also the most widely used cemented carbide.
Ordinary alloys refer to materials that are a mixture of two or more metals or metals and non-metals. According to their different compositions, ordinary alloys can be divided into low alloy steel, medium alloy steel, high alloy steel, etc. The main components of ordinary alloys are iron, carbon, chromium, nickel, etc., and their hardness and wear resistance are not as good as those of special-shaped hard alloys. Alloy high.
2. Different material structures
The structural characteristics of special-shaped cemented carbide are composite materials composed of graphite phase, WC phase, Co phase and other trace phases formed by mixing, pressing and high-temperature and high-pressure sintering of tungsten-cobalt powder and other alloy element powders through multiple processes. Its internal structure has natural pores and orderly arranged particle structure. It also has excellent comprehensive properties such as high hardness, high tensile strength, high wear resistance, and high corrosion resistance.
The structure of ordinary alloys is mainly composed of crystalline structures or amorphous and other irregular structures composed of metal elements. The internal structure is complex and lacks orderly arrangement, and there is no natural pore distribution. Therefore, compared with special-shaped cemented carbide, the hardness, tensile strength, wear resistance and other performance characteristics of ordinary alloys are obviously inferior to special-shaped cemented carbide.
3. Different scope of application
Because special-shaped cemented carbide has excellent properties such as high hardness, high tensile strength, high wear resistance, and high corrosion resistance, it has wide application value in industrial manufacturing fields such as drill bits, cutting tools, bearings, and molds, and has great application value. High economic benefits.
The scope of application of ordinary alloys is relatively narrow, and they are mainly used in automobile manufacturing, aerospace, military industry and other fields. Its application is mainly based on its fire resistance, corrosion resistance, thermal conductivity and other characteristics, but is limited by its hardness, tensile strength and wear resistance.
In summary, special-shaped cemented carbide is significantly different from ordinary alloys in terms of composition, structure, performance characteristics and scope of application. As a high-end industrial material, special-shaped cemented carbide has a very broad application prospect in the field of industrial production and manufacturing. .
