Cradle to Consumer
Identity ID
24dfcdc6-5f7d-4ddf-baac-0ee84b701419
Materials
Associated ID
c20c0fa8-177a-4d2e-9258-241d8cd8f8df
Included activities starts
Included activities ends
Description
This dataset is a market dataset, representing the consumption market of the region; the dataset includes the transport of the product from the gate to the consumer end, and the transport service is calculated according to the transport situation of this product in this region. This dataset represents the production of 1 t of tungsten carbide powder. It assesses the resource consumption and environmental load of the entire process from tungsten powder to tungsten carbide powder.
Activity Description
The entire production process includes the production of tungsten carbide powder, and the entire process covers the process from tungsten powder to tungsten carbide powder.
Process Description
Tungsten carbide powder is a dark gray or black powder material with metallic luster. The crystal form is hexagonal crystal, the hardness is close to diamond, and it has excellent wear resistance and high hardness properties. Its melting point is about 2870°C, its boiling point is about 6000°C, its relative density is about 15.6, and it has good electrical and thermal conductivity properties. Tungsten carbide powder is insoluble in water, hydrochloric acid and sulfuric acid, but soluble in nitric acid-hydrofluoric acid mixture, and its chemical properties are relatively stable. Pure tungsten carbide is relatively fragile, and elements such as cobalt, titanium, and tantalum carbide are usually added to improve its toughness and impact resistance. As the main raw material for the production of cemented carbide, tungsten carbide powder is widely used in the manufacture of cutting tools, wear-resistant parts and engineering materials.
Time period
2021
2026
Geography
China,Zhejiang
Geography comment
Generated by merging multiple data sets in this geographical location.
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The preparation process of tungsten carbide powder: first weigh the tungsten powder and carbon powder, put them into a ball mill, mix and ball mill for 2 to 4 hours to make them fully uniform. After the mixture is loaded into a graphite boat, it enters a horizontal carbon tube resistance furnace, a vertical medium frequency carbonization furnace or a fully automatic molybdenum wire carbonization furnace for carbonization under hydrogen protection. The block materials obtained after carbonization are sent into a ball mill lined with carbide in batches of 200-400kg for crushing. The crushed materials are screened to obtain tungsten carbide powder.